Mercurial > hg > nginx-quic
annotate src/http/v2/ngx_http_v2.h @ 8935:38c71f9b2293
SSL: reduced logging of session cache failures (ticket #621).
Session cache allocations might fail as long as the new session is different
in size from the one least recently used (and freed when the first allocation
fails). In particular, it might not be possible to allocate space for
sessions with client certificates, since they are noticeably bigger than
normal sessions.
To ensure such allocation failures won't clutter logs, logging level changed
to "warn", and logging is now limited to at most one warning per second.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 12 Oct 2022 20:14:36 +0300 |
parents | 011f5ebdb928 |
children | ce6d9cf0f567 |
rev | line source |
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1 /* |
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2 * Copyright (C) Nginx, Inc. |
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3 * Copyright (C) Valentin V. Bartenev |
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4 */ |
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5 |
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6 |
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7 #ifndef _NGX_HTTP_V2_H_INCLUDED_ |
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8 #define _NGX_HTTP_V2_H_INCLUDED_ |
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9 |
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10 |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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13 #include <ngx_http.h> |
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14 |
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15 |
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16 #define NGX_HTTP_V2_ALPN_PROTO "\x02h2" |
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17 |
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18 #define NGX_HTTP_V2_STATE_BUFFER_SIZE 16 |
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19 |
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20 #define NGX_HTTP_V2_DEFAULT_FRAME_SIZE (1 << 14) |
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21 #define NGX_HTTP_V2_MAX_FRAME_SIZE ((1 << 24) - 1) |
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22 |
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23 #define NGX_HTTP_V2_INT_OCTETS 4 |
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24 #define NGX_HTTP_V2_MAX_FIELD \ |
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25 (127 + (1 << (NGX_HTTP_V2_INT_OCTETS - 1) * 7) - 1) |
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26 |
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28 | |
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29 #define NGX_HTTP_V2_FRAME_HEADER_SIZE 9 |
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30 |
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31 /* frame types */ |
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32 #define NGX_HTTP_V2_DATA_FRAME 0x0 |
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33 #define NGX_HTTP_V2_HEADERS_FRAME 0x1 |
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34 #define NGX_HTTP_V2_PRIORITY_FRAME 0x2 |
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35 #define NGX_HTTP_V2_RST_STREAM_FRAME 0x3 |
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36 #define NGX_HTTP_V2_SETTINGS_FRAME 0x4 |
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37 #define NGX_HTTP_V2_PUSH_PROMISE_FRAME 0x5 |
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38 #define NGX_HTTP_V2_PING_FRAME 0x6 |
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39 #define NGX_HTTP_V2_GOAWAY_FRAME 0x7 |
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40 #define NGX_HTTP_V2_WINDOW_UPDATE_FRAME 0x8 |
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41 #define NGX_HTTP_V2_CONTINUATION_FRAME 0x9 |
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42 |
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43 /* frame flags */ |
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44 #define NGX_HTTP_V2_NO_FLAG 0x00 |
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45 #define NGX_HTTP_V2_ACK_FLAG 0x01 |
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46 #define NGX_HTTP_V2_END_STREAM_FLAG 0x01 |
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47 #define NGX_HTTP_V2_END_HEADERS_FLAG 0x04 |
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48 #define NGX_HTTP_V2_PADDED_FLAG 0x08 |
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49 #define NGX_HTTP_V2_PRIORITY_FLAG 0x20 |
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50 |
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51 #define NGX_HTTP_V2_MAX_WINDOW ((1U << 31) - 1) |
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52 #define NGX_HTTP_V2_DEFAULT_WINDOW 65535 |
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53 |
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54 #define NGX_HTTP_V2_DEFAULT_WEIGHT 16 |
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55 |
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56 |
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57 typedef struct ngx_http_v2_connection_s ngx_http_v2_connection_t; |
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58 typedef struct ngx_http_v2_node_s ngx_http_v2_node_t; |
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59 typedef struct ngx_http_v2_out_frame_s ngx_http_v2_out_frame_t; |
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60 |
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61 |
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62 typedef u_char *(*ngx_http_v2_handler_pt) (ngx_http_v2_connection_t *h2c, |
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63 u_char *pos, u_char *end); |
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64 |
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65 |
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66 typedef struct { |
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67 ngx_str_t name; |
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68 ngx_str_t value; |
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69 } ngx_http_v2_header_t; |
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70 |
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71 |
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72 typedef struct { |
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73 ngx_uint_t sid; |
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74 size_t length; |
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75 size_t padding; |
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76 unsigned flags:8; |
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77 |
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78 unsigned incomplete:1; |
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79 unsigned keep_pool:1; |
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80 |
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81 /* HPACK */ |
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82 unsigned parse_name:1; |
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83 unsigned parse_value:1; |
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84 unsigned index:1; |
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85 ngx_http_v2_header_t header; |
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86 size_t header_limit; |
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87 u_char field_state; |
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88 u_char *field_start; |
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89 u_char *field_end; |
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90 size_t field_rest; |
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91 ngx_pool_t *pool; |
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92 |
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93 ngx_http_v2_stream_t *stream; |
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94 |
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95 u_char buffer[NGX_HTTP_V2_STATE_BUFFER_SIZE]; |
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96 size_t buffer_used; |
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97 ngx_http_v2_handler_pt handler; |
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98 } ngx_http_v2_state_t; |
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99 |
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100 |
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101 |
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102 typedef struct { |
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103 ngx_http_v2_header_t **entries; |
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104 |
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105 ngx_uint_t added; |
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106 ngx_uint_t deleted; |
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107 ngx_uint_t reused; |
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108 ngx_uint_t allocated; |
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109 |
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110 size_t size; |
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111 size_t free; |
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112 u_char *storage; |
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113 u_char *pos; |
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114 } ngx_http_v2_hpack_t; |
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115 |
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116 |
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117 struct ngx_http_v2_connection_s { |
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118 ngx_connection_t *connection; |
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119 ngx_http_connection_t *http_connection; |
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120 |
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121 off_t total_bytes; |
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122 off_t payload_bytes; |
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123 |
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124 ngx_uint_t processing; |
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126 ngx_uint_t idle; |
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127 ngx_uint_t priority_limit; |
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128 |
7201 | 129 ngx_uint_t pushing; |
130 ngx_uint_t concurrent_pushes; | |
131 | |
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132 size_t send_window; |
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133 size_t recv_window; |
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134 size_t init_window; |
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135 |
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136 size_t frame_size; |
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137 |
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138 ngx_queue_t waiting; |
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139 |
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140 ngx_http_v2_state_t state; |
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141 |
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142 ngx_http_v2_hpack_t hpack; |
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143 |
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144 ngx_pool_t *pool; |
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145 |
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146 ngx_http_v2_out_frame_t *free_frames; |
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147 ngx_connection_t *free_fake_connections; |
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148 |
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149 ngx_http_v2_node_t **streams_index; |
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150 |
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151 ngx_http_v2_out_frame_t *last_out; |
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152 |
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153 ngx_queue_t dependencies; |
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154 ngx_queue_t closed; |
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155 |
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156 ngx_uint_t closed_nodes; |
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157 ngx_uint_t last_sid; |
7201 | 158 ngx_uint_t last_push; |
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159 |
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160 time_t lingering_time; |
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161 |
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162 unsigned settings_ack:1; |
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163 unsigned table_update:1; |
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164 unsigned blocked:1; |
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165 unsigned goaway:1; |
7201 | 166 unsigned push_disabled:1; |
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167 }; |
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168 |
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169 |
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170 struct ngx_http_v2_node_s { |
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171 ngx_uint_t id; |
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172 ngx_http_v2_node_t *index; |
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173 ngx_http_v2_node_t *parent; |
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174 ngx_queue_t queue; |
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175 ngx_queue_t children; |
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176 ngx_queue_t reuse; |
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177 ngx_uint_t rank; |
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178 ngx_uint_t weight; |
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179 double rel_weight; |
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180 ngx_http_v2_stream_t *stream; |
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181 }; |
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182 |
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183 |
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184 struct ngx_http_v2_stream_s { |
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185 ngx_http_request_t *request; |
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186 ngx_http_v2_connection_t *connection; |
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187 ngx_http_v2_node_t *node; |
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188 |
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189 ngx_uint_t queued; |
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190 |
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191 /* |
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192 * A change to SETTINGS_INITIAL_WINDOW_SIZE could cause the |
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193 * send_window to become negative, hence it's signed. |
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194 */ |
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195 ssize_t send_window; |
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196 size_t recv_window; |
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197 |
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198 ngx_buf_t *preread; |
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199 |
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200 ngx_uint_t frames; |
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201 |
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202 ngx_http_v2_out_frame_t *free_frames; |
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203 ngx_chain_t *free_frame_headers; |
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204 ngx_chain_t *free_bufs; |
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205 |
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206 ngx_queue_t queue; |
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207 |
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208 ngx_array_t *cookies; |
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209 |
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210 ngx_pool_t *pool; |
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211 |
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212 unsigned waiting:1; |
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213 unsigned blocked:1; |
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214 unsigned exhausted:1; |
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215 unsigned in_closed:1; |
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216 unsigned out_closed:1; |
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217 unsigned rst_sent:1; |
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218 unsigned no_flow_control:1; |
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219 unsigned skip_data:1; |
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220 }; |
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221 |
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222 |
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223 struct ngx_http_v2_out_frame_s { |
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224 ngx_http_v2_out_frame_t *next; |
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225 ngx_chain_t *first; |
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226 ngx_chain_t *last; |
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227 ngx_int_t (*handler)(ngx_http_v2_connection_t *h2c, |
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228 ngx_http_v2_out_frame_t *frame); |
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229 |
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230 ngx_http_v2_stream_t *stream; |
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231 size_t length; |
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232 |
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233 unsigned blocked:1; |
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234 unsigned fin:1; |
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235 }; |
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236 |
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237 |
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238 static ngx_inline void |
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The HTTP/2 implementation (RFC 7240, 7241).
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239 ngx_http_v2_queue_frame(ngx_http_v2_connection_t *h2c, |
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240 ngx_http_v2_out_frame_t *frame) |
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241 { |
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242 ngx_http_v2_out_frame_t **out; |
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243 |
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244 for (out = &h2c->last_out; *out; out = &(*out)->next) { |
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245 |
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246 if ((*out)->blocked || (*out)->stream == NULL) { |
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247 break; |
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248 } |
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249 |
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250 if ((*out)->stream->node->rank < frame->stream->node->rank |
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251 || ((*out)->stream->node->rank == frame->stream->node->rank |
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252 && (*out)->stream->node->rel_weight |
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253 >= frame->stream->node->rel_weight)) |
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254 { |
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255 break; |
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256 } |
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The HTTP/2 implementation (RFC 7240, 7241).
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257 } |
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258 |
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259 frame->next = *out; |
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260 *out = frame; |
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261 } |
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262 |
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263 |
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264 static ngx_inline void |
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The HTTP/2 implementation (RFC 7240, 7241).
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265 ngx_http_v2_queue_blocked_frame(ngx_http_v2_connection_t *h2c, |
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266 ngx_http_v2_out_frame_t *frame) |
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267 { |
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268 ngx_http_v2_out_frame_t **out; |
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269 |
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HTTP/2: style and typos.
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270 for (out = &h2c->last_out; *out; out = &(*out)->next) { |
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271 |
6246
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272 if ((*out)->blocked || (*out)->stream == NULL) { |
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273 break; |
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274 } |
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275 } |
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276 |
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277 frame->next = *out; |
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278 *out = frame; |
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279 } |
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280 |
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281 |
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282 static ngx_inline void |
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283 ngx_http_v2_queue_ordered_frame(ngx_http_v2_connection_t *h2c, |
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284 ngx_http_v2_out_frame_t *frame) |
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285 { |
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286 frame->next = h2c->last_out; |
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287 h2c->last_out = frame; |
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288 } |
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289 |
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290 |
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291 void ngx_http_v2_init(ngx_event_t *rev); |
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292 |
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293 ngx_int_t ngx_http_v2_read_request_body(ngx_http_request_t *r); |
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HTTP/2: support for unbuffered upload of request body.
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294 ngx_int_t ngx_http_v2_read_unbuffered_request_body(ngx_http_request_t *r); |
6246
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295 |
7207
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HTTP/2: push additional request headers (closes #1478).
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296 ngx_http_v2_stream_t *ngx_http_v2_push_stream(ngx_http_v2_stream_t *parent, |
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HTTP/2: push additional request headers (closes #1478).
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|
297 ngx_str_t *path); |
7201 | 298 |
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299 void ngx_http_v2_close_stream(ngx_http_v2_stream_t *stream, ngx_int_t rc); |
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300 |
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301 ngx_int_t ngx_http_v2_send_output_queue(ngx_http_v2_connection_t *h2c); |
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302 |
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303 |
7229
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HTTP/2: externalized various constants and interfaces.
Maxim Dounin <mdounin@mdounin.ru>
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|
304 ngx_str_t *ngx_http_v2_get_static_name(ngx_uint_t index); |
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HTTP/2: externalized various constants and interfaces.
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parents:
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|
305 ngx_str_t *ngx_http_v2_get_static_value(ngx_uint_t index); |
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HTTP/2: externalized various constants and interfaces.
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|
306 |
6246
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|
307 ngx_int_t ngx_http_v2_get_indexed_header(ngx_http_v2_connection_t *h2c, |
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|
308 ngx_uint_t index, ngx_uint_t name_only); |
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The HTTP/2 implementation (RFC 7240, 7241).
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309 ngx_int_t ngx_http_v2_add_header(ngx_http_v2_connection_t *h2c, |
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|
310 ngx_http_v2_header_t *header); |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
311 ngx_int_t ngx_http_v2_table_size(ngx_http_v2_connection_t *h2c, size_t size); |
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|
312 |
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|
313 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
314 #define ngx_http_v2_prefix(bits) ((1 << (bits)) - 1) |
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|
315 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
316 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
317 #if (NGX_HAVE_NONALIGNED) |
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|
318 |
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|
319 #define ngx_http_v2_parse_uint16(p) ntohs(*(uint16_t *) (p)) |
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|
320 #define ngx_http_v2_parse_uint32(p) ntohl(*(uint32_t *) (p)) |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
321 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
322 #else |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
changeset
|
323 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
324 #define ngx_http_v2_parse_uint16(p) ((p)[0] << 8 | (p)[1]) |
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|
325 #define ngx_http_v2_parse_uint32(p) \ |
6627
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HTTP/2: avoid left-shifting signed integer into the sign bit.
Sergey Kandaurov <pluknet@nginx.com>
parents:
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diff
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|
326 ((uint32_t) (p)[0] << 24 | (p)[1] << 16 | (p)[2] << 8 | (p)[3]) |
6246
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|
327 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
328 #endif |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
329 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
330 #define ngx_http_v2_parse_length(p) ((p) >> 8) |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
331 #define ngx_http_v2_parse_type(p) ((p) & 0xff) |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
332 #define ngx_http_v2_parse_sid(p) (ngx_http_v2_parse_uint32(p) & 0x7fffffff) |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
333 #define ngx_http_v2_parse_window(p) (ngx_http_v2_parse_uint32(p) & 0x7fffffff) |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
334 |
257b51c37c5a
The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
335 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
336 #define ngx_http_v2_write_uint16_aligned(p, s) \ |
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|
337 (*(uint16_t *) (p) = htons((uint16_t) (s)), (p) + sizeof(uint16_t)) |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
338 #define ngx_http_v2_write_uint32_aligned(p, s) \ |
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parents:
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|
339 (*(uint32_t *) (p) = htonl((uint32_t) (s)), (p) + sizeof(uint32_t)) |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
340 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
341 #if (NGX_HAVE_NONALIGNED) |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
342 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
343 #define ngx_http_v2_write_uint16 ngx_http_v2_write_uint16_aligned |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
344 #define ngx_http_v2_write_uint32 ngx_http_v2_write_uint32_aligned |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
345 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
346 #else |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
347 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
348 #define ngx_http_v2_write_uint16(p, s) \ |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
349 ((p)[0] = (u_char) ((s) >> 8), \ |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
350 (p)[1] = (u_char) (s), \ |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
351 (p) + sizeof(uint16_t)) |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
352 |
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353 #define ngx_http_v2_write_uint32(p, s) \ |
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354 ((p)[0] = (u_char) ((s) >> 24), \ |
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355 (p)[1] = (u_char) ((s) >> 16), \ |
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356 (p)[2] = (u_char) ((s) >> 8), \ |
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357 (p)[3] = (u_char) (s), \ |
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358 (p) + sizeof(uint32_t)) |
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359 |
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360 #endif |
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361 |
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362 #define ngx_http_v2_write_len_and_type(p, l, t) \ |
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363 ngx_http_v2_write_uint32_aligned(p, (l) << 8 | (t)) |
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364 |
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365 #define ngx_http_v2_write_sid ngx_http_v2_write_uint32 |
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366 |
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367 |
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368 #define ngx_http_v2_indexed(i) (128 + (i)) |
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369 #define ngx_http_v2_inc_indexed(i) (64 + (i)) |
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370 |
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371 #define ngx_http_v2_write_name(dst, src, len, tmp) \ |
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372 ngx_http_v2_string_encode(dst, src, len, tmp, 1) |
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373 #define ngx_http_v2_write_value(dst, src, len, tmp) \ |
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374 ngx_http_v2_string_encode(dst, src, len, tmp, 0) |
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375 |
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376 #define NGX_HTTP_V2_ENCODE_RAW 0 |
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377 #define NGX_HTTP_V2_ENCODE_HUFF 0x80 |
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378 |
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379 #define NGX_HTTP_V2_AUTHORITY_INDEX 1 |
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380 |
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381 #define NGX_HTTP_V2_METHOD_INDEX 2 |
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382 #define NGX_HTTP_V2_METHOD_GET_INDEX 2 |
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383 #define NGX_HTTP_V2_METHOD_POST_INDEX 3 |
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384 |
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385 #define NGX_HTTP_V2_PATH_INDEX 4 |
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386 #define NGX_HTTP_V2_PATH_ROOT_INDEX 4 |
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387 |
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388 #define NGX_HTTP_V2_SCHEME_HTTP_INDEX 6 |
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389 #define NGX_HTTP_V2_SCHEME_HTTPS_INDEX 7 |
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390 |
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391 #define NGX_HTTP_V2_STATUS_INDEX 8 |
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392 #define NGX_HTTP_V2_STATUS_200_INDEX 8 |
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393 #define NGX_HTTP_V2_STATUS_204_INDEX 9 |
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394 #define NGX_HTTP_V2_STATUS_206_INDEX 10 |
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395 #define NGX_HTTP_V2_STATUS_304_INDEX 11 |
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396 #define NGX_HTTP_V2_STATUS_400_INDEX 12 |
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397 #define NGX_HTTP_V2_STATUS_404_INDEX 13 |
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398 #define NGX_HTTP_V2_STATUS_500_INDEX 14 |
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399 |
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400 #define NGX_HTTP_V2_ACCEPT_ENCODING_INDEX 16 |
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401 #define NGX_HTTP_V2_ACCEPT_LANGUAGE_INDEX 17 |
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402 #define NGX_HTTP_V2_CONTENT_LENGTH_INDEX 28 |
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403 #define NGX_HTTP_V2_CONTENT_TYPE_INDEX 31 |
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404 #define NGX_HTTP_V2_DATE_INDEX 33 |
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405 #define NGX_HTTP_V2_LAST_MODIFIED_INDEX 44 |
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406 #define NGX_HTTP_V2_LOCATION_INDEX 46 |
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407 #define NGX_HTTP_V2_SERVER_INDEX 54 |
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408 #define NGX_HTTP_V2_USER_AGENT_INDEX 58 |
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409 #define NGX_HTTP_V2_VARY_INDEX 59 |
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410 |
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411 |
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412 u_char *ngx_http_v2_string_encode(u_char *dst, u_char *src, size_t len, |
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413 u_char *tmp, ngx_uint_t lower); |
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414 |
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415 |
6246
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The HTTP/2 implementation (RFC 7240, 7241).
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416 #endif /* _NGX_HTTP_V2_H_INCLUDED_ */ |