Mercurial > hg > nginx-quic
annotate src/event/quic/ngx_event_quic_ack.c @ 8420:baf9551b4a5b quic
QUIC: renamed stream field from c to connection.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Mon, 19 Apr 2021 17:21:07 +0300 |
parents | 915c2f7092ed |
children | 225e9f1dfe7c |
rev | line source |
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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 #define ngx_quic_lost_threshold(qc) \ |
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22 ngx_max(NGX_QUIC_TIME_THR * ngx_max((qc)->latest_rtt, (qc)->avg_rtt), \ |
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23 NGX_QUIC_TIME_GRANULARITY) |
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24 |
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25 |
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26 static void ngx_quic_rtt_sample(ngx_connection_t *c, ngx_quic_ack_frame_t *ack, |
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27 enum ssl_encryption_level_t level, ngx_msec_t send_time); |
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28 static ngx_int_t ngx_quic_handle_ack_frame_range(ngx_connection_t *c, |
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29 ngx_quic_send_ctx_t *ctx, uint64_t min, uint64_t max, |
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30 ngx_msec_t *send_time); |
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31 static void ngx_quic_drop_ack_ranges(ngx_connection_t *c, |
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32 ngx_quic_send_ctx_t *ctx, uint64_t pn); |
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33 static ngx_int_t ngx_quic_detect_lost(ngx_connection_t *c); |
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34 static void ngx_quic_congestion_lost(ngx_connection_t *c, |
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35 ngx_quic_frame_t *frame); |
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36 static void ngx_quic_lost_handler(ngx_event_t *ev); |
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37 |
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38 |
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39 ngx_int_t |
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40 ngx_quic_handle_ack_frame(ngx_connection_t *c, ngx_quic_header_t *pkt, |
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41 ngx_quic_frame_t *f) |
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42 { |
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43 ssize_t n; |
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44 u_char *pos, *end; |
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45 uint64_t min, max, gap, range; |
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46 ngx_msec_t send_time; |
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47 ngx_uint_t i; |
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48 ngx_quic_send_ctx_t *ctx; |
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49 ngx_quic_ack_frame_t *ack; |
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50 ngx_quic_connection_t *qc; |
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51 |
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52 qc = ngx_quic_get_connection(c); |
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53 |
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54 ctx = ngx_quic_get_send_ctx(qc, pkt->level); |
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55 |
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56 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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57 "quic ngx_quic_handle_ack_frame level:%d", pkt->level); |
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58 |
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59 ack = &f->u.ack; |
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60 |
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61 /* |
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62 * If any computed packet number is negative, an endpoint MUST |
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63 * generate a connection error of type FRAME_ENCODING_ERROR. |
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64 * (19.3.1) |
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65 */ |
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66 |
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67 if (ack->first_range > ack->largest) { |
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68 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR; |
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69 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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70 "quic invalid first range in ack frame"); |
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71 return NGX_ERROR; |
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72 } |
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73 |
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74 min = ack->largest - ack->first_range; |
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75 max = ack->largest; |
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76 |
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77 if (ngx_quic_handle_ack_frame_range(c, ctx, min, max, &send_time) |
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78 != NGX_OK) |
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79 { |
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80 return NGX_ERROR; |
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81 } |
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82 |
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83 /* 13.2.3. Receiver Tracking of ACK Frames */ |
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84 if (ctx->largest_ack < max || ctx->largest_ack == NGX_QUIC_UNSET_PN) { |
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85 ctx->largest_ack = max; |
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86 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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87 "quic updated largest received ack:%uL", max); |
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88 |
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89 /* |
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90 * An endpoint generates an RTT sample on receiving an |
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91 * ACK frame that meets the following two conditions: |
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92 * |
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93 * - the largest acknowledged packet number is newly acknowledged |
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94 * - at least one of the newly acknowledged packets was ack-eliciting. |
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95 */ |
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96 |
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97 if (send_time != NGX_TIMER_INFINITE) { |
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98 ngx_quic_rtt_sample(c, ack, pkt->level, send_time); |
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99 } |
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100 } |
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101 |
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102 if (f->data) { |
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103 pos = f->data->buf->pos; |
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104 end = f->data->buf->last; |
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105 |
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106 } else { |
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107 pos = NULL; |
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108 end = NULL; |
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109 } |
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110 |
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111 for (i = 0; i < ack->range_count; i++) { |
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112 |
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113 n = ngx_quic_parse_ack_range(pkt->log, pos, end, &gap, &range); |
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114 if (n == NGX_ERROR) { |
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115 return NGX_ERROR; |
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116 } |
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117 pos += n; |
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118 |
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119 if (gap + 2 > min) { |
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120 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR; |
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121 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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122 "quic invalid range:%ui in ack frame", i); |
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123 return NGX_ERROR; |
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124 } |
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125 |
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126 max = min - gap - 2; |
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127 |
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128 if (range > max) { |
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129 qc->error = NGX_QUIC_ERR_FRAME_ENCODING_ERROR; |
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130 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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131 "quic invalid range:%ui in ack frame", i); |
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132 return NGX_ERROR; |
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133 } |
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134 |
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135 min = max - range; |
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136 |
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137 if (ngx_quic_handle_ack_frame_range(c, ctx, min, max, &send_time) |
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138 != NGX_OK) |
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139 { |
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140 return NGX_ERROR; |
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141 } |
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142 } |
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143 |
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144 return ngx_quic_detect_lost(c); |
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145 } |
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146 |
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147 |
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148 static void |
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149 ngx_quic_rtt_sample(ngx_connection_t *c, ngx_quic_ack_frame_t *ack, |
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150 enum ssl_encryption_level_t level, ngx_msec_t send_time) |
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151 { |
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152 ngx_msec_t latest_rtt, ack_delay, adjusted_rtt, rttvar_sample; |
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153 ngx_quic_connection_t *qc; |
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154 |
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155 qc = ngx_quic_get_connection(c); |
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156 |
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157 latest_rtt = ngx_current_msec - send_time; |
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158 qc->latest_rtt = latest_rtt; |
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159 |
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160 if (qc->min_rtt == NGX_TIMER_INFINITE) { |
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161 qc->min_rtt = latest_rtt; |
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162 qc->avg_rtt = latest_rtt; |
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163 qc->rttvar = latest_rtt / 2; |
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164 |
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165 } else { |
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166 qc->min_rtt = ngx_min(qc->min_rtt, latest_rtt); |
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167 |
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168 ack_delay = ack->delay * (1 << qc->ctp.ack_delay_exponent) / 1000; |
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169 |
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170 if (c->ssl->handshaked) { |
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171 ack_delay = ngx_min(ack_delay, qc->ctp.max_ack_delay); |
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172 } |
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173 |
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174 adjusted_rtt = latest_rtt; |
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175 |
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176 if (qc->min_rtt + ack_delay < latest_rtt) { |
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177 adjusted_rtt -= ack_delay; |
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178 } |
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179 |
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180 qc->avg_rtt = 0.875 * qc->avg_rtt + 0.125 * adjusted_rtt; |
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181 rttvar_sample = ngx_abs((ngx_msec_int_t) (qc->avg_rtt - adjusted_rtt)); |
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182 qc->rttvar = 0.75 * qc->rttvar + 0.25 * rttvar_sample; |
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183 } |
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184 |
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185 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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186 "quic rtt sample latest:%M min:%M avg:%M var:%M", |
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187 latest_rtt, qc->min_rtt, qc->avg_rtt, qc->rttvar); |
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188 } |
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189 |
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190 |
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191 static ngx_int_t |
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192 ngx_quic_handle_ack_frame_range(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx, |
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193 uint64_t min, uint64_t max, ngx_msec_t *send_time) |
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194 { |
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195 ngx_uint_t found; |
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196 ngx_queue_t *q; |
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197 ngx_quic_frame_t *f; |
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198 ngx_quic_connection_t *qc; |
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199 |
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200 qc = ngx_quic_get_connection(c); |
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201 |
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202 *send_time = NGX_TIMER_INFINITE; |
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203 found = 0; |
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204 |
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205 q = ngx_queue_last(&ctx->sent); |
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206 |
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207 while (q != ngx_queue_sentinel(&ctx->sent)) { |
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208 |
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209 f = ngx_queue_data(q, ngx_quic_frame_t, queue); |
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210 q = ngx_queue_prev(q); |
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211 |
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212 if (f->pnum >= min && f->pnum <= max) { |
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213 ngx_quic_congestion_ack(c, f); |
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214 |
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215 switch (f->type) { |
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216 case NGX_QUIC_FT_ACK: |
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217 case NGX_QUIC_FT_ACK_ECN: |
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218 ngx_quic_drop_ack_ranges(c, ctx, f->u.ack.largest); |
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219 break; |
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220 |
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221 case NGX_QUIC_FT_STREAM0: |
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222 case NGX_QUIC_FT_STREAM1: |
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223 case NGX_QUIC_FT_STREAM2: |
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224 case NGX_QUIC_FT_STREAM3: |
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225 case NGX_QUIC_FT_STREAM4: |
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226 case NGX_QUIC_FT_STREAM5: |
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227 case NGX_QUIC_FT_STREAM6: |
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228 case NGX_QUIC_FT_STREAM7: |
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229 ngx_quic_handle_stream_ack(c, f); |
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230 break; |
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231 } |
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232 |
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233 if (f->pnum == max) { |
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234 *send_time = f->last; |
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235 } |
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236 |
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237 ngx_queue_remove(&f->queue); |
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238 ngx_quic_free_frame(c, f); |
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239 found = 1; |
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240 } |
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241 } |
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242 |
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243 if (!found) { |
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244 |
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245 if (max < ctx->pnum) { |
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246 /* duplicate ACK or ACK for non-ack-eliciting frame */ |
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247 return NGX_OK; |
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248 } |
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249 |
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250 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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251 "quic ACK for the packet not sent"); |
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252 |
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253 qc->error = NGX_QUIC_ERR_PROTOCOL_VIOLATION; |
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254 qc->error_ftype = NGX_QUIC_FT_ACK; |
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255 qc->error_reason = "unknown packet number"; |
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256 |
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257 return NGX_ERROR; |
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258 } |
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259 |
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260 if (!qc->push.timer_set) { |
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261 ngx_post_event(&qc->push, &ngx_posted_events); |
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262 } |
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263 |
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264 qc->pto_count = 0; |
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265 |
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266 return NGX_OK; |
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267 } |
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268 |
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269 |
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270 void |
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271 ngx_quic_congestion_ack(ngx_connection_t *c, ngx_quic_frame_t *f) |
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272 { |
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273 ngx_msec_t timer; |
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274 ngx_quic_congestion_t *cg; |
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275 ngx_quic_connection_t *qc; |
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276 |
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277 if (f->plen == 0) { |
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278 return; |
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279 } |
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280 |
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281 qc = ngx_quic_get_connection(c); |
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282 cg = &qc->congestion; |
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283 |
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284 cg->in_flight -= f->plen; |
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285 |
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286 timer = f->last - cg->recovery_start; |
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287 |
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288 if ((ngx_msec_int_t) timer <= 0) { |
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289 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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290 "quic congestion ack recovery win:%uz ss:%z if:%uz", |
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291 cg->window, cg->ssthresh, cg->in_flight); |
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292 |
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293 return; |
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294 } |
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295 |
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296 if (cg->window < cg->ssthresh) { |
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297 cg->window += f->plen; |
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298 |
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299 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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300 "quic congestion slow start win:%uz ss:%z if:%uz", |
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301 cg->window, cg->ssthresh, cg->in_flight); |
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302 |
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303 } else { |
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304 cg->window += qc->tp.max_udp_payload_size * f->plen / cg->window; |
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305 |
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306 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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307 "quic congestion avoidance win:%uz ss:%z if:%uz", |
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308 cg->window, cg->ssthresh, cg->in_flight); |
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309 } |
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310 |
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311 /* prevent recovery_start from wrapping */ |
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312 |
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313 timer = cg->recovery_start - ngx_current_msec + qc->tp.max_idle_timeout * 2; |
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314 |
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315 if ((ngx_msec_int_t) timer < 0) { |
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316 cg->recovery_start = ngx_current_msec - qc->tp.max_idle_timeout * 2; |
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317 } |
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|
318 } |
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319 |
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320 |
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|
321 static void |
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322 ngx_quic_drop_ack_ranges(ngx_connection_t *c, ngx_quic_send_ctx_t *ctx, |
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|
323 uint64_t pn) |
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|
324 { |
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325 uint64_t base; |
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326 ngx_uint_t i, smallest, largest; |
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327 ngx_quic_ack_range_t *r; |
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328 |
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329 ngx_log_debug4(NGX_LOG_DEBUG_EVENT, c->log, 0, |
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330 "quic ngx_quic_drop_ack_ranges pn:%uL largest:%uL" |
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331 " fr:%uL nranges:%ui", pn, ctx->largest_range, |
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|
332 ctx->first_range, ctx->nranges); |
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|
333 |
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|
334 base = ctx->largest_range; |
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335 |
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336 if (base == NGX_QUIC_UNSET_PN) { |
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|
337 return; |
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|
338 } |
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339 |
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340 if (ctx->pending_ack != NGX_QUIC_UNSET_PN && pn >= ctx->pending_ack) { |
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341 ctx->pending_ack = NGX_QUIC_UNSET_PN; |
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342 } |
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|
343 |
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344 largest = base; |
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345 smallest = largest - ctx->first_range; |
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346 |
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347 if (pn >= largest) { |
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348 ctx->largest_range = NGX_QUIC_UNSET_PN; |
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349 ctx->first_range = 0; |
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350 ctx->nranges = 0; |
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|
351 return; |
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|
352 } |
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|
353 |
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|
354 if (pn >= smallest) { |
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|
355 ctx->first_range = largest - pn - 1; |
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356 ctx->nranges = 0; |
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|
357 return; |
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|
358 } |
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|
359 |
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|
360 for (i = 0; i < ctx->nranges; i++) { |
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361 r = &ctx->ranges[i]; |
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|
362 |
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363 largest = smallest - r->gap - 2; |
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364 smallest = largest - r->range; |
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|
365 |
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|
366 if (pn >= largest) { |
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|
367 ctx->nranges = i; |
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|
368 return; |
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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 if (pn >= smallest) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
371 r->range = largest - pn - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
372 ctx->nranges = i + 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
373 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
374 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
375 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
376 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
377 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
378 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
379 static ngx_int_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
380 ngx_quic_detect_lost(ngx_connection_t *c) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
381 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
382 ngx_uint_t i; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
383 ngx_msec_t now, wait, thr; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
384 ngx_queue_t *q; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
385 ngx_quic_frame_t *start; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
386 ngx_quic_send_ctx_t *ctx; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
387 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
388 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
389 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
390 now = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
391 thr = ngx_quic_lost_threshold(qc); |
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 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
|
394 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
395 ctx = &qc->send_ctx[i]; |
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 (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
|
398 continue; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
399 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
400 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
401 while (!ngx_queue_empty(&ctx->sent)) { |
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 q = ngx_queue_head(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
404 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
|
405 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
406 if (start->pnum > ctx->largest_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
407 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
408 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
409 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
410 wait = start->last + thr - now; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
411 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
412 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
|
413 "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
|
414 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
|
415 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
416 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
|
417 && 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
|
418 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
419 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
420 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
421 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
422 ngx_quic_resend_frames(c, ctx); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
423 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
424 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
425 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
426 ngx_quic_set_lost_timer(c); |
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 return NGX_OK; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
431 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
432 void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
433 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
|
434 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
435 size_t n; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
436 ngx_buf_t *b; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
437 ngx_queue_t *q; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
438 ngx_quic_frame_t *f, *start; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
439 ngx_quic_stream_t *sn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
440 ngx_quic_connection_t *qc; |
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 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
443 q = ngx_queue_head(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
444 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
|
445 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
446 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
|
447 "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
|
448 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
449 ngx_quic_congestion_lost(c, start); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
450 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
451 do { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
452 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
|
453 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
454 if (f->pnum != start->pnum) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
455 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
456 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
457 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
458 q = ngx_queue_next(q); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
459 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
460 ngx_queue_remove(&f->queue); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
461 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
462 switch (f->type) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
463 case NGX_QUIC_FT_ACK: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
464 case NGX_QUIC_FT_ACK_ECN: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
465 if (ctx->level == ssl_encryption_application) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
466 /* force generation of most recent acknowledgment */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
467 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
|
468 } |
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 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
471 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
472 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
473 case NGX_QUIC_FT_PING: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
474 case NGX_QUIC_FT_PATH_RESPONSE: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
475 case NGX_QUIC_FT_CONNECTION_CLOSE: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
476 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
477 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
478 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
479 case NGX_QUIC_FT_MAX_DATA: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
480 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
|
481 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
482 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
483 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
484 case NGX_QUIC_FT_MAX_STREAMS: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
485 case NGX_QUIC_FT_MAX_STREAMS2: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
486 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
|
487 ? qc->streams.client_max_streams_bidi |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
488 : qc->streams.client_max_streams_uni; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
489 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
490 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
491 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
492 case NGX_QUIC_FT_MAX_STREAM_DATA: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
493 sn = ngx_quic_find_stream(&qc->streams.tree, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
494 f->u.max_stream_data.id); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
495 if (sn == NULL) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
496 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
497 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
498 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
499 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
500 b = sn->b; |
8414
915c2f7092ed
QUIC: ngx_quic_frames_stream_t made opaque.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8411
diff
changeset
|
501 n = sn->fs->received + (b->pos - b->start) + (b->end - b->last); |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
502 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
503 if (f->u.max_stream_data.limit < n) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
504 f->u.max_stream_data.limit = n; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
505 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
506 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
507 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
508 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
509 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
510 case NGX_QUIC_FT_STREAM0: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
511 case NGX_QUIC_FT_STREAM1: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
512 case NGX_QUIC_FT_STREAM2: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
513 case NGX_QUIC_FT_STREAM3: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
514 case NGX_QUIC_FT_STREAM4: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
515 case NGX_QUIC_FT_STREAM5: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
516 case NGX_QUIC_FT_STREAM6: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
517 case NGX_QUIC_FT_STREAM7: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
518 sn = ngx_quic_find_stream(&qc->streams.tree, f->u.stream.stream_id); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
519 |
8420
baf9551b4a5b
QUIC: renamed stream field from c to connection.
Roman Arutyunyan <arut@nginx.com>
parents:
8414
diff
changeset
|
520 if (sn && sn->connection->write->error) { |
8411
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
521 /* RESET_STREAM was sent */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
522 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
523 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
524 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
525 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
526 /* fall through */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
527 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
528 default: |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
529 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
|
530 } |
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 } 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
|
533 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
534 if (qc->closing) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
535 return; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
538 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
|
539 } |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
542 static void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
543 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
|
544 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
545 ngx_msec_t timer; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
546 ngx_quic_congestion_t *cg; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
547 ngx_quic_connection_t *qc; |
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->plen == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
550 return; |
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 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
554 cg = &qc->congestion; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
555 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
556 cg->in_flight -= f->plen; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
557 f->plen = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
558 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
559 timer = f->last - cg->recovery_start; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
560 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
561 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
|
562 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
|
563 "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
|
564 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
|
565 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
566 return; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
569 cg->recovery_start = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
570 cg->window /= 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
571 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
572 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
|
573 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
|
574 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
575 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
576 cg->ssthresh = cg->window; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
577 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
578 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
|
579 "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
|
580 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
|
581 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
582 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
583 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
584 void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
585 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
|
586 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
587 ngx_uint_t i; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
588 ngx_msec_t now; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
589 ngx_queue_t *q; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
590 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
|
591 ngx_quic_frame_t *f; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
592 ngx_quic_send_ctx_t *ctx; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
593 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
594 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
595 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
596 now = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
597 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
598 lost = -1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
599 pto = -1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
600 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
601 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
|
602 ctx = &qc->send_ctx[i]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
603 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
604 if (ngx_queue_empty(&ctx->sent)) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
605 continue; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
606 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
607 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
608 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
|
609 q = ngx_queue_head(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
610 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
|
611 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
|
612 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
613 if (f->pnum <= ctx->largest_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
614 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
|
615 w = 0; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
618 if (lost == -1 || w < lost) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
619 lost = w; |
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 } |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
624 q = ngx_queue_last(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
625 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
|
626 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
|
627 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
628 if (w < 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
629 w = 0; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
632 if (pto == -1 || w < pto) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
633 pto = w; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
634 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
635 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
636 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
637 if (qc->pto.timer_set) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
638 ngx_del_timer(&qc->pto); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
639 } |
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 if (lost != -1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
642 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
|
643 "quic lost timer lost:%M", lost); |
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 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
|
646 ngx_add_timer(&qc->pto, lost); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
647 return; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
648 } |
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 (pto != -1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
651 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
|
652 "quic lost timer pto:%M", pto); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
653 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
654 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
|
655 ngx_add_timer(&qc->pto, pto); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
656 return; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
659 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
|
660 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
661 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
662 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
663 ngx_msec_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
664 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
|
665 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
666 ngx_msec_t duration; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
667 ngx_quic_connection_t *qc; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
668 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
669 qc = ngx_quic_get_connection(c); |
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 /* PTO calculation: quic-recovery, Appendix 8 */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
672 duration = qc->avg_rtt; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
673 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
674 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
|
675 duration <<= qc->pto_count; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
676 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
677 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
|
678 return duration; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
679 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
680 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
681 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
|
682 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
|
683 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
684 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
685 return duration; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
688 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
689 static |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
690 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
|
691 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
692 ngx_connection_t *c; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
693 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
694 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
|
695 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
696 c = ev->data; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
697 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
698 if (ngx_quic_detect_lost(c) != NGX_OK) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
699 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
|
700 } |
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 ngx_quic_connstate_dbg(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
703 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
704 |
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 void |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
707 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
|
708 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
709 ngx_uint_t i; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
710 ngx_msec_t now; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
711 ngx_queue_t *q, *next; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
712 ngx_connection_t *c; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
713 ngx_quic_frame_t *f; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
714 ngx_quic_send_ctx_t *ctx; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
715 ngx_quic_connection_t *qc; |
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 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
|
718 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
719 c = ev->data; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
720 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
721 now = ngx_current_msec; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
722 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
723 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
|
724 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
725 ctx = &qc->send_ctx[i]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
726 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
727 if (ngx_queue_empty(&ctx->sent)) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
728 continue; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
731 q = ngx_queue_head(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
732 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
|
733 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
734 if (f->pnum <= ctx->largest_ack |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
735 && 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
|
736 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
737 continue; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
740 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
|
741 continue; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
744 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
|
745 "quic pto %s pto_count:%ui", |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
746 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
|
747 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
748 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
|
749 q != ngx_queue_sentinel(&ctx->frames); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
750 /* void */) |
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 next = ngx_queue_next(q); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
753 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
|
754 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
755 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
|
756 ngx_queue_remove(q); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
757 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
758 } |
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 q = next; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
761 } |
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 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
|
764 q != ngx_queue_sentinel(&ctx->sent); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
765 /* void */) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
766 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
767 next = ngx_queue_next(q); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
768 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
|
769 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
770 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
|
771 ngx_quic_congestion_lost(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
772 ngx_queue_remove(q); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
773 ngx_quic_free_frame(c, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
774 } |
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 q = next; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
779 /* enforce 2 udp datagrams */ |
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 f = ngx_quic_alloc_frame(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
782 if (f == NULL) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
783 break; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
786 f->level = ctx->level; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
787 f->type = NGX_QUIC_FT_PING; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
788 f->flush = 1; |
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 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
791 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
792 f = ngx_quic_alloc_frame(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
793 if (f == NULL) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
794 break; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
795 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
796 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
797 f->level = ctx->level; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
798 f->type = NGX_QUIC_FT_PING; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
799 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
800 ngx_quic_queue_frame(qc, f); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
801 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
802 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
803 qc->pto_count++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
804 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
805 ngx_quic_connstate_dbg(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
806 } |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
809 ngx_int_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
810 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
|
811 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
812 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
|
813 uint64_t prev_pending; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
814 ngx_uint_t i, nr; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
815 ngx_quic_send_ctx_t *ctx; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
816 ngx_quic_ack_range_t *r; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
817 ngx_quic_connection_t *qc; |
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 c->log->action = "preparing ack"; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
820 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
821 qc = ngx_quic_get_connection(c); |
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 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
|
824 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
825 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
|
826 "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
|
827 " 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
|
828 ctx->first_range, ctx->nranges); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
829 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
830 prev_pending = ctx->pending_ack; |
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 if (pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
833 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
834 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
|
835 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
836 if (ctx->send_ack == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
837 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
|
838 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
839 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
840 ctx->send_ack++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
841 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
842 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
|
843 || ctx->pending_ack < pkt->pn) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
844 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
845 ctx->pending_ack = pkt->pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
846 } |
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 base = ctx->largest_range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
850 pn = pkt->pn; |
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 if (base == NGX_QUIC_UNSET_PN) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
853 ctx->largest_range = pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
854 ctx->largest_received = pkt->received; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
855 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
856 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
857 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
858 if (base == pn) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
859 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
860 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
861 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
862 largest = base; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
863 smallest = largest - ctx->first_range; |
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 if (pn > base) { |
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 if (pn - base == 1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
868 ctx->first_range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
869 ctx->largest_range = pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
870 ctx->largest_received = pkt->received; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
871 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
872 return NGX_OK; |
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 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
875 /* 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
|
876 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
877 /* 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
|
878 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
|
879 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
880 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
|
881 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
|
882 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
883 } |
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 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
|
887 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
|
888 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
889 } |
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 gap = pn - base - 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
892 range = ctx->first_range; |
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 ctx->first_range = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
895 ctx->largest_range = pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
896 ctx->largest_received = pkt->received; |
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 /* 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
|
899 if (pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
900 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
|
901 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
902 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
903 i = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
904 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
905 goto insert; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
906 } |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
909 /* 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
|
910 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
911 /* packet is out of order */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
912 if (pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
913 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
|
914 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
915 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
916 if (pn >= smallest && pn <= largest) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
917 return NGX_OK; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
920 #if (NGX_SUPPRESS_WARN) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
921 r = NULL; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
922 #endif |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
923 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
924 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
|
925 r = &ctx->ranges[i]; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
926 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
927 ge = smallest - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
928 gs = ge - r->gap; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
929 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
930 if (pn >= gs && pn <= ge) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
931 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
932 if (gs == ge) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
933 /* 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
|
934 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
935 /* 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
|
936 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
937 if (i == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
938 ctx->first_range += r->range + 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
939 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
940 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
941 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
|
942 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
943 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
944 nr = ctx->nranges - i - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
945 if (nr) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
946 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
|
947 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
|
948 } |
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 ctx->nranges--; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
951 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
952 } else if (pn == gs) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
953 /* 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
|
954 r->gap--; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
955 r->range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
956 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
957 } else if (pn == ge) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
958 /* 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
|
959 r->gap--; |
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 if (i == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
962 ctx->first_range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
963 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
964 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
965 ctx->ranges[i - 1].range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
966 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
967 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
968 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
969 /* 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
|
970 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
971 gap = ge - pn - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
972 range = 0; |
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 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
|
975 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
|
976 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
|
977 return NGX_ERROR; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
981 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
|
982 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
|
983 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
984 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
985 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
986 r->gap = pn - gs - 1; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
987 goto insert; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
988 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
989 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
990 return NGX_OK; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
993 largest = smallest - r->gap - 2; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
994 smallest = largest - r->range; |
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 if (pn >= smallest && pn <= largest) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
997 /* this packet number is already known */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
998 return NGX_OK; |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1001 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1002 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1003 if (pn == smallest - 1) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1004 /* extend first or last range */ |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1005 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1006 if (i == 0) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1007 ctx->first_range++; |
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 } else { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1010 r->range++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1011 } |
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 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1014 } |
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 /* 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
|
1017 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1018 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
|
1019 /* 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
|
1020 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1021 if (pkt->need_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1022 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
|
1023 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1024 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1025 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1026 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1027 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1028 gap = smallest - 2 - pn; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1029 range = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1030 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1031 insert: |
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 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
|
1034 ctx->nranges++; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1035 } |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1036 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1037 ngx_memmove(&ctx->ranges[i + 1], &ctx->ranges[i], |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1038 sizeof(ngx_quic_ack_range_t) * (ctx->nranges - i - 1)); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1039 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1040 ctx->ranges[i].gap = gap; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1041 ctx->ranges[i].range = range; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1042 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1043 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1044 } |
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 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1047 ngx_int_t |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1048 ngx_quic_generate_ack(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
|
1049 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1050 ngx_msec_t delay; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1051 ngx_quic_connection_t *qc; |
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 if (!ctx->send_ack) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1054 return NGX_OK; |
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 if (ctx->level == ssl_encryption_application) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1058 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1059 delay = ngx_current_msec - ctx->ack_delay_start; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1060 qc = ngx_quic_get_connection(c); |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1061 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1062 if (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
|
1063 && delay < qc->tp.max_ack_delay) |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1064 { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1065 if (!qc->push.timer_set && !qc->closing) { |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1066 ngx_add_timer(&qc->push, |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1067 qc->tp.max_ack_delay - delay); |
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 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1071 } |
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 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
|
1075 return NGX_ERROR; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1076 } |
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 ctx->send_ack = 0; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1079 |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1080 return NGX_OK; |
bc910a5ec737
QUIC: separate files for output and ack related processing.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
1081 } |