Mercurial > hg > nginx-quic
annotate src/event/quic/ngx_event_quic_ack.c @ 8493:004172345bdc quic
QUIC: persistent congestion calculation.
According to RFC 9002 (quic-recovery) 7.6.
author | Vladimir Homutov <vl@nginx.com> |
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date | Wed, 09 Jun 2021 15:11:43 +0300 |
parents | f52a2b77d406 |
children | 4715f3e669f1 |
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1 |
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2 /* |
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3 * Copyright (C) Nginx, Inc. |
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4 */ |
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5 |
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6 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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10 #include <ngx_event_quic_connection.h> |
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11 |
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12 |
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13 #define NGX_QUIC_MAX_ACK_GAP 2 |
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14 |
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15 /* quic-recovery, section 6.1.1, Packet Threshold */ |
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16 #define NGX_QUIC_PKT_THR 3 /* packets */ |
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17 /* quic-recovery, section 6.1.2, Time Threshold */ |
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18 #define NGX_QUIC_TIME_THR 1.125 |
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19 #define NGX_QUIC_TIME_GRANULARITY 1 /* ms */ |
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20 |
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21 /* quic-recovery, section 7.6.1 Persistent congestion duration */ |
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22 #define NGX_QUIC_PERSISTENT_CONGESTION_THR 3 |
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23 |
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24 #define ngx_quic_lost_threshold(qc) \ |
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25 ngx_max(NGX_QUIC_TIME_THR * ngx_max((qc)->latest_rtt, (qc)->avg_rtt), \ |
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26 NGX_QUIC_TIME_GRANULARITY) |
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27 |
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28 |
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29 /* send time of ACK'ed packets */ |
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30 typedef struct { |
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31 ngx_msec_t max_pn; |
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32 ngx_msec_t oldest; |
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33 ngx_msec_t newest; |
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34 } ngx_quic_ack_stat_t; |
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35 |
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36 |
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37 static void ngx_quic_rtt_sample(ngx_connection_t *c, ngx_quic_ack_frame_t *ack, |
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38 enum ssl_encryption_level_t level, ngx_msec_t send_time); |
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39 static ngx_int_t ngx_quic_handle_ack_frame_range(ngx_connection_t *c, |
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40 ngx_quic_send_ctx_t *ctx, uint64_t min, uint64_t max, |
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41 ngx_quic_ack_stat_t *st); |
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42 static void ngx_quic_drop_ack_ranges(ngx_connection_t *c, |
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43 ngx_quic_send_ctx_t *ctx, uint64_t pn); |
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44 static ngx_int_t ngx_quic_detect_lost(ngx_connection_t *c, |
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45 ngx_quic_ack_stat_t *st); |
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46 static ngx_msec_t ngx_quic_pcg_duration(ngx_connection_t *c); |
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47 static void ngx_quic_persistent_congestion(ngx_connection_t *c); |
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48 static void ngx_quic_congestion_lost(ngx_connection_t *c, |
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49 ngx_quic_frame_t *frame); |
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50 static void ngx_quic_lost_handler(ngx_event_t *ev); |
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51 |
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52 |
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53 ngx_int_t |
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54 ngx_quic_handle_ack_frame(ngx_connection_t *c, ngx_quic_header_t *pkt, |
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55 ngx_quic_frame_t *f) |
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56 { |
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57 ssize_t n; |
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58 u_char *pos, *end; |
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59 uint64_t min, max, gap, range; |
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60 ngx_uint_t i; |
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61 ngx_quic_ack_stat_t send_time; |
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62 ngx_quic_send_ctx_t *ctx; |
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63 ngx_quic_ack_frame_t *ack; |
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64 ngx_quic_connection_t *qc; |
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65 |
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66 qc = ngx_quic_get_connection(c); |
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67 |
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68 ctx = ngx_quic_get_send_ctx(qc, pkt->level); |
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69 |
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70 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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71 "quic ngx_quic_handle_ack_frame level:%d", pkt->level); |
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72 |
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73 ack = &f->u.ack; |
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74 |
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75 /* |
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76 * If any computed packet number is negative, an endpoint MUST |
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77 * generate a connection error of type FRAME_ENCODING_ERROR. |
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78 * (19.3.1) |
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79 */ |
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80 |
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81 if (ack->first_range > ack->largest) { |
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82 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR; |
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83 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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84 "quic invalid first range in ack frame"); |
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85 return NGX_ERROR; |
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86 } |
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87 |
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88 min = ack->largest - ack->first_range; |
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89 max = ack->largest; |
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90 |
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91 send_time.oldest = NGX_TIMER_INFINITE; |
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92 send_time.newest = NGX_TIMER_INFINITE; |
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93 |
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94 if (ngx_quic_handle_ack_frame_range(c, ctx, min, max, &send_time) |
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95 != NGX_OK) |
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96 { |
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97 return NGX_ERROR; |
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98 } |
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99 |
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100 /* 13.2.3. Receiver Tracking of ACK Frames */ |
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101 if (ctx->largest_ack < max || ctx->largest_ack == NGX_QUIC_UNSET_PN) { |
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102 ctx->largest_ack = max; |
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103 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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104 "quic updated largest received ack:%uL", max); |
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105 |
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106 /* |
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107 * An endpoint generates an RTT sample on receiving an |
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108 * ACK frame that meets the following two conditions: |
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109 * |
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110 * - the largest acknowledged packet number is newly acknowledged |
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111 * - at least one of the newly acknowledged packets was ack-eliciting. |
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112 */ |
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113 |
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114 if (send_time.max_pn != NGX_TIMER_INFINITE) { |
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115 ngx_quic_rtt_sample(c, ack, pkt->level, send_time.max_pn); |
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116 } |
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117 } |
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118 |
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119 if (f->data) { |
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120 pos = f->data->buf->pos; |
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121 end = f->data->buf->last; |
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122 |
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123 } else { |
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124 pos = NULL; |
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125 end = NULL; |
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126 } |
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127 |
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128 for (i = 0; i < ack->range_count; i++) { |
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129 |
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130 n = ngx_quic_parse_ack_range(pkt->log, pos, end, &gap, &range); |
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131 if (n == NGX_ERROR) { |
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132 return NGX_ERROR; |
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133 } |
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134 pos += n; |
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135 |
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136 if (gap + 2 > min) { |
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137 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR; |
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138 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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139 "quic invalid range:%ui in ack frame", i); |
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140 return NGX_ERROR; |
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141 } |
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142 |
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143 max = min - gap - 2; |
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144 |
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145 if (range > max) { |
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146 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR; |
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147 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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148 "quic invalid range:%ui in ack frame", i); |
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149 return NGX_ERROR; |
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150 } |
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151 |
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152 min = max - range; |
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153 |
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154 if (ngx_quic_handle_ack_frame_range(c, ctx, min, max, &send_time) |
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155 != NGX_OK) |
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156 { |
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157 return NGX_ERROR; |
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158 } |
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159 } |
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160 |
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161 return ngx_quic_detect_lost(c, &send_time); |
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162 } |
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163 |
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164 |
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165 static void |
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166 ngx_quic_rtt_sample(ngx_connection_t *c, ngx_quic_ack_frame_t *ack, |
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167 enum ssl_encryption_level_t level, ngx_msec_t send_time) |
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168 { |
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169 ngx_msec_t latest_rtt, ack_delay, adjusted_rtt, rttvar_sample; |
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170 ngx_quic_connection_t *qc; |
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171 |
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172 qc = ngx_quic_get_connection(c); |
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173 |
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174 latest_rtt = ngx_current_msec - send_time; |
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175 qc->latest_rtt = latest_rtt; |
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176 |
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177 if (qc->min_rtt == NGX_TIMER_INFINITE) { |
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178 qc->min_rtt = latest_rtt; |
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179 qc->avg_rtt = latest_rtt; |
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180 qc->rttvar = latest_rtt / 2; |
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181 qc->first_rtt = ngx_current_msec; |
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182 |
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183 } else { |
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184 qc->min_rtt = ngx_min(qc->min_rtt, latest_rtt); |
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185 |
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186 ack_delay = ack->delay * (1 << qc->ctp.ack_delay_exponent) / 1000; |
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187 |
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188 if (c->ssl->handshaked) { |
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189 ack_delay = ngx_min(ack_delay, qc->ctp.max_ack_delay); |
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190 } |
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191 |
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192 adjusted_rtt = latest_rtt; |
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193 |
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194 if (qc->min_rtt + ack_delay < latest_rtt) { |
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195 adjusted_rtt -= ack_delay; |
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196 } |
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197 |
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198 qc->avg_rtt = 0.875 * qc->avg_rtt + 0.125 * adjusted_rtt; |
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199 rttvar_sample = ngx_abs((ngx_msec_int_t) (qc->avg_rtt - adjusted_rtt)); |
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200 qc->rttvar = 0.75 * qc->rttvar + 0.25 * rttvar_sample; |
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201 } |
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202 |
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203 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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204 "quic rtt sample latest:%M min:%M avg:%M var:%M", |
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205 latest_rtt, qc->min_rtt, qc->avg_rtt, qc->rttvar); |
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206 } |
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207 |
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208 |
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209 static ngx_int_t |
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210 ngx_quic_handle_ack_frame_range(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx, |
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211 uint64_t min, uint64_t max, ngx_quic_ack_stat_t *st) |
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212 { |
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213 ngx_uint_t found; |
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214 ngx_queue_t *q; |
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215 ngx_quic_frame_t *f; |
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216 ngx_quic_connection_t *qc; |
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217 |
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218 qc = ngx_quic_get_connection(c); |
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219 |
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220 st->max_pn = NGX_TIMER_INFINITE; |
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221 found = 0; |
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222 |
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223 q = ngx_queue_last(&ctx->sent); |
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224 |
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225 while (q != ngx_queue_sentinel(&ctx->sent)) { |
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226 |
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227 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
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228 q = ngx_queue_prev(q); |
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229 |
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230 if (f->pnum >= min && f->pnum <= max) { |
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231 ngx_quic_congestion_ack(c, f); |
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232 |
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233 switch (f->type) { |
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234 case NGX_QUIC_FT_ACK: |
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235 case NGX_QUIC_FT_ACK_ECN: |
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236 ngx_quic_drop_ack_ranges(c, ctx, f->u.ack.largest); |
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237 break; |
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238 |
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239 case NGX_QUIC_FT_STREAM0: |
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240 case NGX_QUIC_FT_STREAM1: |
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241 case NGX_QUIC_FT_STREAM2: |
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242 case NGX_QUIC_FT_STREAM3: |
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243 case NGX_QUIC_FT_STREAM4: |
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244 case NGX_QUIC_FT_STREAM5: |
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245 case NGX_QUIC_FT_STREAM6: |
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246 case NGX_QUIC_FT_STREAM7: |
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247 ngx_quic_handle_stream_ack(c, f); |
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248 break; |
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249 } |
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250 |
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251 if (f->pnum == max) { |
8493
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252 st->max_pn = f->last; |
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253 } |
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254 |
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255 /* save earliest and latest send times of frames ack'ed */ |
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256 if (st->oldest == NGX_TIMER_INFINITE || f->last < st->oldest) { |
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257 st->oldest = f->last; |
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258 } |
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259 |
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260 if (st->newest == NGX_TIMER_INFINITE || f->last > st->newest) { |
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261 st->newest = f->last; |
8411
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262 } |
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263 |
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264 ngx_queue_remove(&f->queue); |
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265 ngx_quic_free_frame(c, f); |
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266 found = 1; |
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parents:
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|
267 } |
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parents:
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268 } |
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269 |
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|
270 if (!found) { |
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271 |
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272 if (max < ctx->pnum) { |
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273 /* duplicate ACK or ACK for non-ack-eliciting frame */ |
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274 return NGX_OK; |
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|
275 } |
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276 |
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277 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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278 "quic ACK for the packet not sent"); |
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279 |
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280 qc->error = NGX_QUIC_ERR_PROTOCOL_VIOLATION; |
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281 qc->error_ftype = NGX_QUIC_FT_ACK; |
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282 qc->error_reason = "unknown packet number"; |
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|
283 |
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|
284 return NGX_ERROR; |
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parents:
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|
285 } |
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|
286 |
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|
287 if (!qc->push.timer_set) { |
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288 ngx_post_event(&qc->push, &ngx_posted_events); |
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289 } |
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290 |
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|
291 qc->pto_count = 0; |
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292 |
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|
293 return NGX_OK; |
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|
294 } |
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295 |
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|
296 |
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|
297 void |
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|
298 ngx_quic_congestion_ack(ngx_connection_t *c, ngx_quic_frame_t *f) |
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|
299 { |
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|
300 ngx_msec_t timer; |
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|
301 ngx_quic_congestion_t *cg; |
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|
302 ngx_quic_connection_t *qc; |
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|
303 |
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304 if (f->plen == 0) { |
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|
305 return; |
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parents:
diff
changeset
|
306 } |
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|
307 |
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|
308 qc = ngx_quic_get_connection(c); |
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309 cg = &qc->congestion; |
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310 |
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|
311 cg->in_flight -= f->plen; |
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312 |
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|
313 timer = f->last - cg->recovery_start; |
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314 |
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|
315 if ((ngx_msec_int_t) timer <= 0) { |
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316 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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|
317 "quic congestion ack recovery win:%uz ss:%z if:%uz", |
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|
318 cg->window, cg->ssthresh, cg->in_flight); |
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|
319 |
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parents:
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|
320 return; |
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parents:
diff
changeset
|
321 } |
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|
322 |
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|
323 if (cg->window < cg->ssthresh) { |
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|
324 cg->window += f->plen; |
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|
325 |
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|
326 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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|
327 "quic congestion slow start win:%uz ss:%z if:%uz", |
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|
328 cg->window, cg->ssthresh, cg->in_flight); |
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|
329 |
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parents:
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|
330 } else { |
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|
331 cg->window += qc->tp.max_udp_payload_size * f->plen / cg->window; |
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|
332 |
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|
333 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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|
334 "quic congestion avoidance win:%uz ss:%z if:%uz", |
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|
335 cg->window, cg->ssthresh, cg->in_flight); |
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parents:
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|
336 } |
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|
337 |
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|
338 /* prevent recovery_start from wrapping */ |
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|
339 |
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|
340 timer = cg->recovery_start - ngx_current_msec + qc->tp.max_idle_timeout * 2; |
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|
341 |
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|
342 if ((ngx_msec_int_t) timer < 0) { |
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|
343 cg->recovery_start = ngx_current_msec - qc->tp.max_idle_timeout * 2; |
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|
344 } |
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parents:
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|
345 } |
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parents:
diff
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|
346 |
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parents:
diff
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|
347 |
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parents:
diff
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|
348 static void |
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diff
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|
349 ngx_quic_drop_ack_ranges(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx, |
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|
350 uint64_t pn) |
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parents:
diff
changeset
|
351 { |
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parents:
diff
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|
352 uint64_t base; |
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|
353 ngx_uint_t i, smallest, largest; |
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|
354 ngx_quic_ack_range_t *r; |
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diff
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|
355 |
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|
356 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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|
357 "quic ngx_quic_drop_ack_ranges pn:%uL largest:%uL" |
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|
358 " fr:%uL nranges:%ui", pn, ctx->largest_range, |
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diff
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|
359 ctx->first_range, ctx->nranges); |
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diff
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|
360 |
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changeset
|
361 base = ctx->largest_range; |
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diff
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|
362 |
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parents:
diff
changeset
|
363 if (base == NGX_QUIC_UNSET_PN) { |
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parents:
diff
changeset
|
364 return; |
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parents:
diff
changeset
|
365 } |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
366 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
367 if (ctx->pending_ack != NGX_QUIC_UNSET_PN && pn >= ctx->pending_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
368 ctx->pending_ack = NGX_QUIC_UNSET_PN; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
369 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
370 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
371 largest = base; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
372 smallest = largest - ctx->first_range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
373 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
374 if (pn >= largest) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
375 ctx->largest_range = NGX_QUIC_UNSET_PN; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
376 ctx->first_range = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
377 ctx->nranges = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
378 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
379 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
380 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
381 if (pn >= smallest) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
382 ctx->first_range = largest - pn - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
383 ctx->nranges = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
384 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
385 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
386 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
387 for (i = 0; i < ctx->nranges; i++) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
388 r = &ctx->ranges[i]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
389 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
390 largest = smallest - r->gap - 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
391 smallest = largest - r->range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
392 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
393 if (pn >= largest) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
394 ctx->nranges = i; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
395 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
396 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
397 if (pn >= smallest) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
398 r->range = largest - pn - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
399 ctx->nranges = i + 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
400 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
401 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
402 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
403 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
404 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
405 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
406 static ngx_int_t |
8493
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
407 ngx_quic_detect_lost(ngx_connection_t *c, ngx_quic_ack_stat_t *st) |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
408 { |
8493
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
409 ngx_uint_t i, nlost; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
410 ngx_msec_t now, wait, thr, oldest, newest; |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
411 ngx_queue_t *q; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
412 ngx_quic_frame_t *start; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
413 ngx_quic_send_ctx_t *ctx; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
414 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
415 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
416 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
417 now = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
418 thr = ngx_quic_lost_threshold(qc); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
419 |
8493
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
420 /* send time of lost packets across all send contexts */ |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
421 oldest = NGX_TIMER_INFINITE; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
422 newest = NGX_TIMER_INFINITE; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
423 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
424 nlost = 0; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
425 |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
426 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
427 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
428 ctx = &qc->send_ctx[i]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
429 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
430 if (ctx->largest_ack == NGX_QUIC_UNSET_PN) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
431 continue; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
432 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
433 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
434 while (!ngx_queue_empty(&ctx->sent)) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
435 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
436 q = ngx_queue_head(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
437 start = ngx_queue_data(q, ngx_quic_frame_t, queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
438 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
439 if (start->pnum > ctx->largest_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
440 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
441 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
442 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
443 wait = start->last + thr - now; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
444 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
445 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
446 "quic detect_lost pnum:%uL thr:%M wait:%i level:%d", |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
447 start->pnum, thr, (ngx_int_t) wait, start->level); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
448 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
449 if ((ngx_msec_int_t) wait > 0 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
450 && ctx->largest_ack - start->pnum < NGX_QUIC_PKT_THR) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
451 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
452 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
453 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
454 |
8493
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
455 if (start->last > qc->first_rtt) { |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
456 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
457 if (oldest == NGX_TIMER_INFINITE || start->last < oldest) { |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
458 oldest = start->last; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
459 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
460 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
461 if (newest == NGX_TIMER_INFINITE || start->last > newest) { |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
462 newest = start->last; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
463 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
464 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
465 nlost++; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
466 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
467 |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
468 ngx_quic_resend_frames(c, ctx); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
469 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
470 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
471 |
8493
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
472 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
473 /* Establishing Persistent Congestion (7.6.2) */ |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
474 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
475 /* |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
476 * Once acknowledged, packets are no longer tracked. Thus no send time |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
477 * information is available for such packets. This limits persistent |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
478 * congestion algorithm to packets mentioned within ACK ranges of the |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
479 * latest ACK frame. |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
480 */ |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
481 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
482 if (st && nlost >= 2 && (st->newest < oldest || st->oldest > newest)) { |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
483 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
484 if (newest - oldest > ngx_quic_pcg_duration(c)) { |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
485 ngx_quic_persistent_congestion(c); |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
486 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
487 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
488 |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
489 ngx_quic_set_lost_timer(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
490 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
491 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
492 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
493 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
494 |
8493
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
495 static ngx_msec_t |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
496 ngx_quic_pcg_duration(ngx_connection_t *c) |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
497 { |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
498 ngx_msec_t duration; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
499 ngx_quic_connection_t *qc; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
500 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
501 qc = ngx_quic_get_connection(c); |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
502 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
503 duration = qc->avg_rtt; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
504 duration += ngx_max(4 * qc->rttvar, NGX_QUIC_TIME_GRANULARITY); |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
505 duration += qc->ctp.max_ack_delay; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
506 duration *= NGX_QUIC_PERSISTENT_CONGESTION_THR; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
507 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
508 return duration; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
509 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
510 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
511 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
512 static void |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
513 ngx_quic_persistent_congestion(ngx_connection_t *c) |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
514 { |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
515 ngx_quic_congestion_t *cg; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
516 ngx_quic_connection_t *qc; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
517 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
518 qc = ngx_quic_get_connection(c); |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
519 cg = &qc->congestion; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
520 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
521 cg->recovery_start = ngx_current_msec; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
522 cg->window = qc->tp.max_udp_payload_size * 2; |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
523 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
524 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
525 "quic persistent congestion win:%uz", cg->window); |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
526 } |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
527 |
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
528 |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
529 void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
530 ngx_quic_resend_frames(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
531 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
532 ngx_queue_t *q; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
533 ngx_quic_frame_t *f, *start; |
8421
225e9f1dfe7c
QUIC: renamed stream variables from sn to qs.
Roman Arutyunyan <arut@nginx.com>
parents:
8420
diff
changeset
|
534 ngx_quic_stream_t *qs; |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
535 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
536 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
537 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
538 q = ngx_queue_head(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
539 start = ngx_queue_data(q, ngx_quic_frame_t, queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
540 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
541 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
542 "quic resend packet pnum:%uL", start->pnum); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
543 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
544 ngx_quic_congestion_lost(c, start); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
545 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
546 do { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
547 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
548 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
549 if (f->pnum != start->pnum) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
550 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
551 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
552 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
553 q = ngx_queue_next(q); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
554 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
555 ngx_queue_remove(&f->queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
556 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
557 switch (f->type) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
558 case NGX_QUIC_FT_ACK: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
559 case NGX_QUIC_FT_ACK_ECN: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
560 if (ctx->level == ssl_encryption_application) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
561 /* force generation of most recent acknowledgment */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
562 ctx->send_ack = NGX_QUIC_MAX_ACK_GAP; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
563 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
564 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
565 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
566 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
567 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
568 case NGX_QUIC_FT_PING: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
569 case NGX_QUIC_FT_PATH_RESPONSE: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
570 case NGX_QUIC_FT_CONNECTION_CLOSE: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
571 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
572 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
573 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
574 case NGX_QUIC_FT_MAX_DATA: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
575 f->u.max_data.max_data = qc->streams.recv_max_data; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
576 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
577 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
578 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
579 case NGX_QUIC_FT_MAX_STREAMS: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
580 case NGX_QUIC_FT_MAX_STREAMS2: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
581 f->u.max_streams.limit = f->u.max_streams.bidi |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
582 ? qc->streams.client_max_streams_bidi |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
583 : qc->streams.client_max_streams_uni; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
584 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
585 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
586 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
587 case NGX_QUIC_FT_MAX_STREAM_DATA: |
8421
225e9f1dfe7c
QUIC: renamed stream variables from sn to qs.
Roman Arutyunyan <arut@nginx.com>
parents:
8420
diff
changeset
|
588 qs = ngx_quic_find_stream(&qc->streams.tree, |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
589 f->u.max_stream_data.id); |
8421
225e9f1dfe7c
QUIC: renamed stream variables from sn to qs.
Roman Arutyunyan <arut@nginx.com>
parents:
8420
diff
changeset
|
590 if (qs == NULL) { |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
591 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
592 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
593 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
594 |
8439
f52a2b77d406
QUIC: generic buffering for stream input.
Roman Arutyunyan <arut@nginx.com>
parents:
8423
diff
changeset
|
595 f->u.max_stream_data.limit = qs->recv_max_data; |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
596 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
597 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
598 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
599 case NGX_QUIC_FT_STREAM0: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
600 case NGX_QUIC_FT_STREAM1: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
601 case NGX_QUIC_FT_STREAM2: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
602 case NGX_QUIC_FT_STREAM3: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
603 case NGX_QUIC_FT_STREAM4: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
604 case NGX_QUIC_FT_STREAM5: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
605 case NGX_QUIC_FT_STREAM6: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
606 case NGX_QUIC_FT_STREAM7: |
8421
225e9f1dfe7c
QUIC: renamed stream variables from sn to qs.
Roman Arutyunyan <arut@nginx.com>
parents:
8420
diff
changeset
|
607 qs = ngx_quic_find_stream(&qc->streams.tree, f->u.stream.stream_id); |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
608 |
8421
225e9f1dfe7c
QUIC: renamed stream variables from sn to qs.
Roman Arutyunyan <arut@nginx.com>
parents:
8420
diff
changeset
|
609 if (qs && qs->connection->write->error) { |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
610 /* RESET_STREAM was sent */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
611 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
612 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
613 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
614 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
615 /* fall through */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
616 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
617 default: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
618 ngx_queue_insert_tail(&ctx->frames, &f->queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
619 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
620 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
621 } while (q != ngx_queue_sentinel(&ctx->sent)); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
622 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
623 if (qc->closing) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
624 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
625 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
626 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
627 ngx_post_event(&qc->push, &ngx_posted_events); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
628 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
629 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
630 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
631 static void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
632 ngx_quic_congestion_lost(ngx_connection_t *c, ngx_quic_frame_t *f) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
633 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
634 ngx_msec_t timer; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
635 ngx_quic_congestion_t *cg; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
636 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
637 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
638 if (f->plen == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
639 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
640 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
641 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
642 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
643 cg = &qc->congestion; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
644 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
645 cg->in_flight -= f->plen; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
646 f->plen = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
647 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
648 timer = f->last - cg->recovery_start; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
649 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
650 if ((ngx_msec_int_t) timer <= 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
651 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
652 "quic congestion lost recovery win:%uz ss:%z if:%uz", |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
653 cg->window, cg->ssthresh, cg->in_flight); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
654 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
655 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
656 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
657 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
658 cg->recovery_start = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
659 cg->window /= 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
660 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
661 if (cg->window < qc->tp.max_udp_payload_size * 2) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
662 cg->window = qc->tp.max_udp_payload_size * 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
663 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
664 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
665 cg->ssthresh = cg->window; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
666 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
667 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
668 "quic congestion lost win:%uz ss:%z if:%uz", |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
669 cg->window, cg->ssthresh, cg->in_flight); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
670 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
671 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
672 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
673 void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
674 ngx_quic_set_lost_timer(ngx_connection_t *c) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
675 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
676 ngx_uint_t i; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
677 ngx_msec_t now; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
678 ngx_queue_t *q; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
679 ngx_msec_int_t lost, pto, w; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
680 ngx_quic_frame_t *f; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
681 ngx_quic_send_ctx_t *ctx; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
682 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
683 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
684 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
685 now = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
686 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
687 lost = -1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
688 pto = -1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
689 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
690 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
691 ctx = &qc->send_ctx[i]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
692 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
693 if (ngx_queue_empty(&ctx->sent)) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
694 continue; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
695 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
696 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
697 if (ctx->largest_ack != NGX_QUIC_UNSET_PN) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
698 q = ngx_queue_head(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
699 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
700 w = (ngx_msec_int_t) (f->last + ngx_quic_lost_threshold(qc) - now); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
701 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
702 if (f->pnum <= ctx->largest_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
703 if (w < 0 || ctx->largest_ack - f->pnum >= NGX_QUIC_PKT_THR) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
704 w = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
705 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
706 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
707 if (lost == -1 || w < lost) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
708 lost = w; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
709 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
710 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
711 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
712 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
713 q = ngx_queue_last(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
714 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
715 w = (ngx_msec_int_t) (f->last + ngx_quic_pto(c, ctx) - now); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
716 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
717 if (w < 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
718 w = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
719 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
720 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
721 if (pto == -1 || w < pto) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
722 pto = w; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
723 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
724 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
725 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
726 if (qc->pto.timer_set) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
727 ngx_del_timer(&qc->pto); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
728 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
729 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
730 if (lost != -1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
731 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
732 "quic lost timer lost:%M", lost); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
733 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
734 qc->pto.handler = ngx_quic_lost_handler; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
735 ngx_add_timer(&qc->pto, lost); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
736 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
737 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
738 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
739 if (pto != -1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
740 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
741 "quic lost timer pto:%M", pto); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
742 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
743 qc->pto.handler = ngx_quic_pto_handler; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
744 ngx_add_timer(&qc->pto, pto); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
745 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
746 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
747 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
748 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "quic lost timer unset"); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
749 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
750 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
751 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
752 ngx_msec_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
753 ngx_quic_pto(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
754 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
755 ngx_msec_t duration; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
756 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
757 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
758 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
759 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
760 /* PTO calculation: quic-recovery, Appendix 8 */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
761 duration = qc->avg_rtt; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
762 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
763 duration += ngx_max(4 * qc->rttvar, NGX_QUIC_TIME_GRANULARITY); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
764 duration <<= qc->pto_count; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
765 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
766 if (qc->congestion.in_flight == 0) { /* no in-flight packets */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
767 return duration; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
768 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
769 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
770 if (ctx->level == ssl_encryption_application && c->ssl->handshaked) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
771 duration += qc->ctp.max_ack_delay << qc->pto_count; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
772 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
773 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
774 return duration; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
775 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
776 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
777 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
778 static |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
779 void ngx_quic_lost_handler(ngx_event_t *ev) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
780 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
781 ngx_connection_t *c; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
782 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
783 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "quic lost timer"); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
784 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
785 c = ev->data; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
786 |
8493
004172345bdc
QUIC: persistent congestion calculation.
Vladimir Homutov <vl@nginx.com>
parents:
8439
diff
changeset
|
787 if (ngx_quic_detect_lost(c, NULL) != NGX_OK) { |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
788 ngx_quic_close_connection(c, NGX_ERROR); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
789 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
790 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
791 ngx_quic_connstate_dbg(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
792 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
793 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
794 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
795 void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
796 ngx_quic_pto_handler(ngx_event_t *ev) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
797 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
798 ngx_uint_t i; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
799 ngx_msec_t now; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
800 ngx_queue_t *q, *next; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
801 ngx_connection_t *c; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
802 ngx_quic_frame_t *f; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
803 ngx_quic_send_ctx_t *ctx; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
804 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
805 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
806 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "quic pto timer"); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
807 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
808 c = ev->data; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
809 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
810 now = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
811 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
812 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
813 |
8423
4117aa7fa38e
QUIC: connection migration.
Vladimir Homutov <vl@nginx.com>
parents:
8421
diff
changeset
|
814 ctx = &qc->send_ctx[i]; |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
815 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
816 if (ngx_queue_empty(&ctx->sent)) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
817 continue; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
818 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
819 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
820 q = ngx_queue_head(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
821 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
822 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
823 if (f->pnum <= ctx->largest_ack |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
824 && ctx->largest_ack != NGX_QUIC_UNSET_PN) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
825 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
826 continue; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
827 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
828 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
829 if ((ngx_msec_int_t) (f->last + ngx_quic_pto(c, ctx) - now) > 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
830 continue; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
831 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
832 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
833 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
834 "quic pto %s pto_count:%ui", |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
835 ngx_quic_level_name(ctx->level), qc->pto_count); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
836 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
837 for (q = ngx_queue_head(&ctx->frames); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
838 q != ngx_queue_sentinel(&ctx->frames); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
839 /* void */) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
840 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
841 next = ngx_queue_next(q); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
842 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
843 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
844 if (f->type == NGX_QUIC_FT_PING) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
845 ngx_queue_remove(q); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
846 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
847 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
848 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
849 q = next; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
850 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
851 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
852 for (q = ngx_queue_head(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
853 q != ngx_queue_sentinel(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
854 /* void */) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
855 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
856 next = ngx_queue_next(q); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
857 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
858 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
859 if (f->type == NGX_QUIC_FT_PING) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
860 ngx_quic_congestion_lost(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
861 ngx_queue_remove(q); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
862 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
863 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
864 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
865 q = next; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
866 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
867 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
868 /* enforce 2 udp datagrams */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
869 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
870 f = ngx_quic_alloc_frame(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
871 if (f == NULL) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
872 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
873 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
874 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
875 f->level = ctx->level; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
876 f->type = NGX_QUIC_FT_PING; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
877 f->flush = 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
878 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
879 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
880 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
881 f = ngx_quic_alloc_frame(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
882 if (f == NULL) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
883 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
884 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
885 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
886 f->level = ctx->level; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
887 f->type = NGX_QUIC_FT_PING; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
888 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
889 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
890 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
891 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
892 qc->pto_count++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
893 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
894 ngx_quic_connstate_dbg(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
895 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
896 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
897 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
898 ngx_int_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
899 ngx_quic_ack_packet(ngx_connection_t *c, ngx_quic_header_t *pkt) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
900 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
901 uint64_t base, largest, smallest, gs, ge, gap, range, pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
902 uint64_t prev_pending; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
903 ngx_uint_t i, nr; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
904 ngx_quic_send_ctx_t *ctx; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
905 ngx_quic_ack_range_t *r; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
906 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
907 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
908 c->log->action = "preparing ack"; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
909 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
910 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
911 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
912 ctx = ngx_quic_get_send_ctx(qc, pkt->level); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
913 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
914 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
915 "quic ngx_quic_ack_packet pn:%uL largest %L fr:%uL" |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
916 " nranges:%ui", pkt->pn, (int64_t) ctx->largest_range, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
917 ctx->first_range, ctx->nranges); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
918 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
919 prev_pending = ctx->pending_ack; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
920 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
921 if (pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
922 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
923 ngx_post_event(&qc->push, &ngx_posted_events); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
924 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
925 if (ctx->send_ack == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
926 ctx->ack_delay_start = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
927 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
928 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
929 ctx->send_ack++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
930 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
931 if (ctx->pending_ack == NGX_QUIC_UNSET_PN |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
932 || ctx->pending_ack < pkt->pn) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
933 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
934 ctx->pending_ack = pkt->pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
935 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
936 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
937 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
938 base = ctx->largest_range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
939 pn = pkt->pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
940 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
941 if (base == NGX_QUIC_UNSET_PN) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
942 ctx->largest_range = pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
943 ctx->largest_received = pkt->received; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
944 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
945 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
946 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
947 if (base == pn) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
948 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
949 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
950 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
951 largest = base; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
952 smallest = largest - ctx->first_range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
953 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
954 if (pn > base) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
955 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
956 if (pn - base == 1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
957 ctx->first_range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
958 ctx->largest_range = pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
959 ctx->largest_received = pkt->received; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
960 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
961 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
962 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
963 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
964 /* new gap in front of current largest */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
965 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
966 /* no place for new range, send current range as is */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
967 if (ctx->nranges == NGX_QUIC_MAX_RANGES) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
968 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
969 if (prev_pending != NGX_QUIC_UNSET_PN) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
970 if (ngx_quic_send_ack(c, ctx) != NGX_OK) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
971 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
972 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
973 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
974 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
975 if (prev_pending == ctx->pending_ack || !pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
976 ctx->pending_ack = NGX_QUIC_UNSET_PN; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
977 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
978 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
979 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
980 gap = pn - base - 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
981 range = ctx->first_range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
982 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
983 ctx->first_range = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
984 ctx->largest_range = pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
985 ctx->largest_received = pkt->received; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
986 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
987 /* packet is out of order, force send */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
988 if (pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
989 ctx->send_ack = NGX_QUIC_MAX_ACK_GAP; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
990 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
991 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
992 i = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
993 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
994 goto insert; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
995 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
996 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
997 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
998 /* pn < base, perform lookup in existing ranges */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
999 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1000 /* packet is out of order */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1001 if (pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1002 ctx->send_ack = NGX_QUIC_MAX_ACK_GAP; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1003 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1004 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1005 if (pn >= smallest && pn <= largest) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1006 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1007 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1008 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1009 #if (NGX_SUPPRESS_WARN) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1010 r = NULL; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1011 #endif |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1012 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1013 for (i = 0; i < ctx->nranges; i++) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1014 r = &ctx->ranges[i]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1015 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1016 ge = smallest - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1017 gs = ge - r->gap; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1018 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1019 if (pn >= gs && pn <= ge) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1020 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1021 if (gs == ge) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1022 /* gap size is exactly one packet, now filled */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1023 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1024 /* data moves to previous range, current is removed */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1025 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1026 if (i == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1027 ctx->first_range += r->range + 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1028 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1029 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1030 ctx->ranges[i - 1].range += r->range + 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1031 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1032 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1033 nr = ctx->nranges - i - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1034 if (nr) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1035 ngx_memmove(&ctx->ranges[i], &ctx->ranges[i + 1], |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1036 sizeof(ngx_quic_ack_range_t) * nr); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1037 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1038 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1039 ctx->nranges--; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1040 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1041 } else if (pn == gs) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1042 /* current gap shrinks from tail (current range grows) */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1043 r->gap--; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1044 r->range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1045 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1046 } else if (pn == ge) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1047 /* current gap shrinks from head (previous range grows) */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1048 r->gap--; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1049 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1050 if (i == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1051 ctx->first_range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1052 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1053 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1054 ctx->ranges[i - 1].range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1055 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1056 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1057 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1058 /* current gap is split into two parts */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1059 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1060 gap = ge - pn - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1061 range = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1062 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1063 if (ctx->nranges == NGX_QUIC_MAX_RANGES) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1064 if (prev_pending != NGX_QUIC_UNSET_PN) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1065 if (ngx_quic_send_ack(c, ctx) != NGX_OK) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1066 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1067 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1068 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1069 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1070 if (prev_pending == ctx->pending_ack || !pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1071 ctx->pending_ack = NGX_QUIC_UNSET_PN; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1072 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1073 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1074 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1075 r->gap = pn - gs - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1076 goto insert; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1077 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1078 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1079 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1080 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1081 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1082 largest = smallest - r->gap - 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1083 smallest = largest - r->range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1084 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1085 if (pn >= smallest && pn <= largest) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1086 /* this packet number is already known */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1087 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1088 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1089 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1090 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1091 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1092 if (pn == smallest - 1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1093 /* extend first or last range */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1094 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1095 if (i == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1096 ctx->first_range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1097 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1098 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1099 r->range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1100 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1101 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1102 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1103 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1104 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1105 /* nothing found, add new range at the tail */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1106 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1107 if (ctx->nranges == NGX_QUIC_MAX_RANGES) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1108 /* packet is too old to keep it */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1109 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1110 if (pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1111 return ngx_quic_send_ack_range(c, ctx, pn, pn); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1112 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1113 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1114 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1115 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1116 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1117 gap = smallest - 2 - pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1118 range = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1119 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1120 insert: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1121 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1122 if (ctx->nranges < NGX_QUIC_MAX_RANGES) { |
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|
1123 ctx->nranges++; |
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1124 } |
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Vladimir Homutov <vl@nginx.com>
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|
1125 |
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Vladimir Homutov <vl@nginx.com>
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|
1126 ngx_memmove(&ctx->ranges[i + 1], &ctx->ranges[i], |
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1127 sizeof(ngx_quic_ack_range_t) * (ctx->nranges - i - 1)); |
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|
1128 |
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|
1129 ctx->ranges[i].gap = gap; |
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parents:
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|
1130 ctx->ranges[i].range = range; |
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|
1131 |
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parents:
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|
1132 return NGX_OK; |
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parents:
diff
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|
1133 } |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
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|
1134 |
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parents:
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|
1135 |
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Vladimir Homutov <vl@nginx.com>
parents:
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|
1136 ngx_int_t |
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|
1137 ngx_quic_generate_ack(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx) |
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|
1138 { |
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|
1139 ngx_msec_t delay; |
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parents:
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|
1140 ngx_quic_connection_t *qc; |
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|
1141 |
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|
1142 if (!ctx->send_ack) { |
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parents:
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|
1143 return NGX_OK; |
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|
1144 } |
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|
1145 |
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parents:
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|
1146 if (ctx->level == ssl_encryption_application) { |
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parents:
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|
1147 |
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Vladimir Homutov <vl@nginx.com>
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1148 delay = ngx_current_msec - ctx->ack_delay_start; |
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1149 qc = ngx_quic_get_connection(c); |
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|
1150 |
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|
1151 if (ctx->send_ack < NGX_QUIC_MAX_ACK_GAP |
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parents:
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|
1152 && delay < qc->tp.max_ack_delay) |
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parents:
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|
1153 { |
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|
1154 if (!qc->push.timer_set && !qc->closing) { |
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1155 ngx_add_timer(&qc->push, |
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|
1156 qc->tp.max_ack_delay - delay); |
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parents:
diff
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|
1157 } |
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parents:
diff
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|
1158 |
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parents:
diff
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|
1159 return NGX_OK; |
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parents:
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|
1160 } |
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parents:
diff
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|
1161 } |
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parents:
diff
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|
1162 |
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parents:
diff
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|
1163 if (ngx_quic_send_ack(c, ctx) != NGX_OK) { |
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parents:
diff
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|
1164 return NGX_ERROR; |
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parents:
diff
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|
1165 } |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
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|
1166 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
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|
1167 ctx->send_ack = 0; |
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parents:
diff
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|
1168 |
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Vladimir Homutov <vl@nginx.com>
parents:
diff
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|
1169 return NGX_OK; |
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parents:
diff
changeset
|
1170 } |