Mercurial > hg > nginx-quic
annotate src/http/v2/ngx_http_v2.h @ 7524:deebe988cbd7
Perl: reworked perl module to pass ctx instead of request.
This ensures that correct ctx is always available, including after
filter finalization. In particular, this fixes a segmentation fault
with the following configuration:
location / {
image_filter test;
perl 'sub {
my $r = shift;
$r->send_http_header();
$r->print("foo\n");
$r->print("bar\n");
}';
}
This also seems to be the only way to correctly handle filter finalization
in various complex cases, for example, when embedded perl is used both
in the original handler and in an error page called after filter
finalization.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Fri, 12 Jul 2019 11:29:22 +0300 |
parents | e7f19d268c72 |
children | 99257b06b0bd |
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_ADVERTISE "\x02h2" |
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17 #define NGX_HTTP_V2_NPN_ADVERTISE NGX_HTTP_V2_ALPN_ADVERTISE |
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18 |
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19 #define NGX_HTTP_V2_STATE_BUFFER_SIZE 16 |
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20 |
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21 #define NGX_HTTP_V2_DEFAULT_FRAME_SIZE (1 << 14) |
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22 #define NGX_HTTP_V2_MAX_FRAME_SIZE ((1 << 24) - 1) |
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23 |
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24 #define NGX_HTTP_V2_INT_OCTETS 4 |
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25 #define NGX_HTTP_V2_MAX_FIELD \ |
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26 (127 + (1 << (NGX_HTTP_V2_INT_OCTETS - 1) * 7) - 1) |
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27 |
7201 | 28 #define NGX_HTTP_V2_STREAM_ID_SIZE 4 |
29 | |
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30 #define NGX_HTTP_V2_FRAME_HEADER_SIZE 9 |
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31 |
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32 /* frame types */ |
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33 #define NGX_HTTP_V2_DATA_FRAME 0x0 |
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34 #define NGX_HTTP_V2_HEADERS_FRAME 0x1 |
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35 #define NGX_HTTP_V2_PRIORITY_FRAME 0x2 |
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36 #define NGX_HTTP_V2_RST_STREAM_FRAME 0x3 |
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37 #define NGX_HTTP_V2_SETTINGS_FRAME 0x4 |
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38 #define NGX_HTTP_V2_PUSH_PROMISE_FRAME 0x5 |
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39 #define NGX_HTTP_V2_PING_FRAME 0x6 |
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40 #define NGX_HTTP_V2_GOAWAY_FRAME 0x7 |
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41 #define NGX_HTTP_V2_WINDOW_UPDATE_FRAME 0x8 |
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42 #define NGX_HTTP_V2_CONTINUATION_FRAME 0x9 |
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43 |
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44 /* frame flags */ |
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45 #define NGX_HTTP_V2_NO_FLAG 0x00 |
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46 #define NGX_HTTP_V2_ACK_FLAG 0x01 |
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47 #define NGX_HTTP_V2_END_STREAM_FLAG 0x01 |
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48 #define NGX_HTTP_V2_END_HEADERS_FLAG 0x04 |
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49 #define NGX_HTTP_V2_PADDED_FLAG 0x08 |
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50 #define NGX_HTTP_V2_PRIORITY_FLAG 0x20 |
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51 |
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52 #define NGX_HTTP_V2_MAX_WINDOW ((1U << 31) - 1) |
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53 #define NGX_HTTP_V2_DEFAULT_WINDOW 65535 |
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54 |
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55 #define NGX_HTTP_V2_DEFAULT_WEIGHT 16 |
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56 |
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57 |
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58 typedef struct ngx_http_v2_connection_s ngx_http_v2_connection_t; |
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59 typedef struct ngx_http_v2_node_s ngx_http_v2_node_t; |
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60 typedef struct ngx_http_v2_out_frame_s ngx_http_v2_out_frame_t; |
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61 |
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62 |
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63 typedef u_char *(*ngx_http_v2_handler_pt) (ngx_http_v2_connection_t *h2c, |
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64 u_char *pos, u_char *end); |
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65 |
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66 |
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67 typedef struct { |
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68 ngx_str_t name; |
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69 ngx_str_t value; |
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70 } ngx_http_v2_header_t; |
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71 |
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72 |
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73 typedef struct { |
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74 ngx_uint_t sid; |
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75 size_t length; |
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76 size_t padding; |
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77 unsigned flags:8; |
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78 |
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79 unsigned incomplete:1; |
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80 unsigned keep_pool:1; |
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81 |
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82 /* HPACK */ |
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83 unsigned parse_name:1; |
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84 unsigned parse_value:1; |
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85 unsigned index:1; |
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86 ngx_http_v2_header_t header; |
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87 size_t header_limit; |
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88 u_char field_state; |
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89 u_char *field_start; |
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90 u_char *field_end; |
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91 size_t field_rest; |
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92 ngx_pool_t *pool; |
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93 |
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94 ngx_http_v2_stream_t *stream; |
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95 |
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96 u_char buffer[NGX_HTTP_V2_STATE_BUFFER_SIZE]; |
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97 size_t buffer_used; |
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98 ngx_http_v2_handler_pt handler; |
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99 } ngx_http_v2_state_t; |
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100 |
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101 |
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102 |
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103 typedef struct { |
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104 ngx_http_v2_header_t **entries; |
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105 |
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106 ngx_uint_t added; |
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107 ngx_uint_t deleted; |
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108 ngx_uint_t reused; |
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109 ngx_uint_t allocated; |
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110 |
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111 size_t size; |
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112 size_t free; |
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113 u_char *storage; |
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114 u_char *pos; |
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115 } ngx_http_v2_hpack_t; |
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116 |
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117 |
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118 struct ngx_http_v2_connection_s { |
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119 ngx_connection_t *connection; |
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120 ngx_http_connection_t *http_connection; |
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121 |
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122 ngx_uint_t processing; |
7377 | 123 ngx_uint_t frames; |
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124 ngx_uint_t idle; |
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125 |
7201 | 126 ngx_uint_t pushing; |
127 ngx_uint_t concurrent_pushes; | |
128 | |
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129 size_t send_window; |
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130 size_t recv_window; |
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131 size_t init_window; |
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132 |
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133 size_t frame_size; |
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134 |
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135 ngx_queue_t waiting; |
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136 |
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137 ngx_http_v2_state_t state; |
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138 |
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139 ngx_http_v2_hpack_t hpack; |
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140 |
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141 ngx_pool_t *pool; |
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142 |
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143 ngx_http_v2_out_frame_t *free_frames; |
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144 ngx_connection_t *free_fake_connections; |
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145 |
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146 ngx_http_v2_node_t **streams_index; |
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147 |
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148 ngx_http_v2_out_frame_t *last_out; |
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149 |
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150 ngx_queue_t dependencies; |
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151 ngx_queue_t closed; |
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152 |
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153 ngx_uint_t last_sid; |
7201 | 154 ngx_uint_t last_push; |
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155 |
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156 unsigned closed_nodes:8; |
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157 unsigned settings_ack:1; |
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HTTP/2: signal 0-byte HPACK's dynamic table size.
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158 unsigned table_update:1; |
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159 unsigned blocked:1; |
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HTTP/2: graceful shutdown of active connections (closes #1106).
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160 unsigned goaway:1; |
7201 | 161 unsigned push_disabled:1; |
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162 }; |
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163 |
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164 |
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165 struct ngx_http_v2_node_s { |
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166 ngx_uint_t id; |
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167 ngx_http_v2_node_t *index; |
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168 ngx_http_v2_node_t *parent; |
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169 ngx_queue_t queue; |
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170 ngx_queue_t children; |
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171 ngx_queue_t reuse; |
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172 ngx_uint_t rank; |
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173 ngx_uint_t weight; |
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174 double rel_weight; |
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175 ngx_http_v2_stream_t *stream; |
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176 }; |
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177 |
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178 |
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179 struct ngx_http_v2_stream_s { |
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180 ngx_http_request_t *request; |
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181 ngx_http_v2_connection_t *connection; |
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182 ngx_http_v2_node_t *node; |
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183 |
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184 ngx_uint_t queued; |
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185 |
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186 /* |
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187 * A change to SETTINGS_INITIAL_WINDOW_SIZE could cause the |
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188 * send_window to become negative, hence it's signed. |
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189 */ |
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190 ssize_t send_window; |
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191 size_t recv_window; |
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192 |
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193 ngx_buf_t *preread; |
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194 |
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195 ngx_http_v2_out_frame_t *free_frames; |
6293
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HTTP/2: reused HEADERS and CONTINUATION frames buffers.
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196 ngx_chain_t *free_frame_headers; |
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197 ngx_chain_t *free_bufs; |
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198 |
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199 ngx_queue_t queue; |
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200 |
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201 ngx_array_t *cookies; |
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202 |
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203 ngx_pool_t *pool; |
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204 |
6833
3834951e32ab
HTTP/2: fixed posted streams handling.
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205 unsigned waiting:1; |
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206 unsigned blocked:1; |
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207 unsigned exhausted:1; |
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208 unsigned in_closed:1; |
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209 unsigned out_closed:1; |
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HTTP/2: sending RST_STREAM with NO_ERROR to discard request body.
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210 unsigned rst_sent:1; |
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HTTP/2: rewritten handling of request body.
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211 unsigned no_flow_control:1; |
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HTTP/2: rewritten handling of request body.
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212 unsigned skip_data:1; |
6246
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213 }; |
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214 |
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215 |
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|
216 struct ngx_http_v2_out_frame_s { |
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217 ngx_http_v2_out_frame_t *next; |
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218 ngx_chain_t *first; |
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219 ngx_chain_t *last; |
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220 ngx_int_t (*handler)(ngx_http_v2_connection_t *h2c, |
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221 ngx_http_v2_out_frame_t *frame); |
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222 |
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223 ngx_http_v2_stream_t *stream; |
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|
224 size_t length; |
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225 |
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226 unsigned blocked:1; |
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227 unsigned fin:1; |
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228 }; |
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229 |
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230 |
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231 static ngx_inline void |
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The HTTP/2 implementation (RFC 7240, 7241).
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232 ngx_http_v2_queue_frame(ngx_http_v2_connection_t *h2c, |
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The HTTP/2 implementation (RFC 7240, 7241).
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233 ngx_http_v2_out_frame_t *frame) |
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|
234 { |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
235 ngx_http_v2_out_frame_t **out; |
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The HTTP/2 implementation (RFC 7240, 7241).
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236 |
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237 for (out = &h2c->last_out; *out; out = &(*out)->next) { |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
238 |
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|
239 if ((*out)->blocked || (*out)->stream == NULL) { |
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240 break; |
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241 } |
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242 |
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243 if ((*out)->stream->node->rank < frame->stream->node->rank |
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244 || ((*out)->stream->node->rank == frame->stream->node->rank |
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245 && (*out)->stream->node->rel_weight |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
246 >= frame->stream->node->rel_weight)) |
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The HTTP/2 implementation (RFC 7240, 7241).
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247 { |
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248 break; |
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249 } |
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250 } |
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251 |
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252 frame->next = *out; |
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253 *out = frame; |
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254 } |
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255 |
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256 |
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257 static ngx_inline void |
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258 ngx_http_v2_queue_blocked_frame(ngx_http_v2_connection_t *h2c, |
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259 ngx_http_v2_out_frame_t *frame) |
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260 { |
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261 ngx_http_v2_out_frame_t **out; |
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262 |
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HTTP/2: style and typos.
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263 for (out = &h2c->last_out; *out; out = &(*out)->next) { |
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264 |
6246
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265 if ((*out)->blocked || (*out)->stream == NULL) { |
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266 break; |
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267 } |
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268 } |
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269 |
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270 frame->next = *out; |
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271 *out = frame; |
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272 } |
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273 |
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274 |
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275 static ngx_inline void |
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276 ngx_http_v2_queue_ordered_frame(ngx_http_v2_connection_t *h2c, |
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277 ngx_http_v2_out_frame_t *frame) |
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278 { |
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279 frame->next = h2c->last_out; |
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280 h2c->last_out = frame; |
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281 } |
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282 |
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283 |
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284 void ngx_http_v2_init(ngx_event_t *rev); |
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285 |
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286 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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287 ngx_int_t ngx_http_v2_read_unbuffered_request_body(ngx_http_request_t *r); |
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288 |
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HTTP/2: push additional request headers (closes #1478).
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289 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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|
290 ngx_str_t *path); |
7201 | 291 |
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292 void ngx_http_v2_close_stream(ngx_http_v2_stream_t *stream, ngx_int_t rc); |
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293 |
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294 ngx_int_t ngx_http_v2_send_output_queue(ngx_http_v2_connection_t *h2c); |
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295 |
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296 |
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HTTP/2: externalized various constants and interfaces.
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297 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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298 ngx_str_t *ngx_http_v2_get_static_value(ngx_uint_t index); |
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299 |
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300 ngx_int_t ngx_http_v2_get_indexed_header(ngx_http_v2_connection_t *h2c, |
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301 ngx_uint_t index, ngx_uint_t name_only); |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
302 ngx_int_t ngx_http_v2_add_header(ngx_http_v2_connection_t *h2c, |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
303 ngx_http_v2_header_t *header); |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
304 ngx_int_t ngx_http_v2_table_size(ngx_http_v2_connection_t *h2c, size_t size); |
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|
305 |
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|
306 |
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|
307 ngx_int_t ngx_http_v2_huff_decode(u_char *state, u_char *src, size_t len, |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
308 u_char **dst, ngx_uint_t last, ngx_log_t *log); |
6395
ba3c2ca21aa5
HTTP/2: implemented HPACK Huffman encoding for response headers.
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parents:
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|
309 size_t ngx_http_v2_huff_encode(u_char *src, size_t len, u_char *dst, |
ba3c2ca21aa5
HTTP/2: implemented HPACK Huffman encoding for response headers.
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|
310 ngx_uint_t lower); |
6246
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311 |
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|
312 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
313 #define ngx_http_v2_prefix(bits) ((1 << (bits)) - 1) |
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|
314 |
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|
315 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
316 #if (NGX_HAVE_NONALIGNED) |
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|
317 |
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|
318 #define ngx_http_v2_parse_uint16(p) ntohs(*(uint16_t *) (p)) |
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|
319 #define ngx_http_v2_parse_uint32(p) ntohl(*(uint32_t *) (p)) |
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|
320 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
321 #else |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
322 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
323 #define ngx_http_v2_parse_uint16(p) ((p)[0] << 8 | (p)[1]) |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
324 #define ngx_http_v2_parse_uint32(p) \ |
6627
ad736705a744
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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|
325 ((uint32_t) (p)[0] << 24 | (p)[1] << 16 | (p)[2] << 8 | (p)[3]) |
6246
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|
326 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
327 #endif |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
328 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
329 #define ngx_http_v2_parse_length(p) ((p) >> 8) |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
330 #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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|
331 #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:
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|
332 #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:
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|
333 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
334 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
335 #define ngx_http_v2_write_uint16_aligned(p, s) \ |
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|
336 (*(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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|
337 #define ngx_http_v2_write_uint32_aligned(p, s) \ |
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parents:
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|
338 (*(uint32_t *) (p) = htonl((uint32_t) (s)), (p) + sizeof(uint32_t)) |
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|
339 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
340 #if (NGX_HAVE_NONALIGNED) |
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|
341 |
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|
342 #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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|
343 #define ngx_http_v2_write_uint32 ngx_http_v2_write_uint32_aligned |
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|
344 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
345 #else |
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|
346 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
347 #define ngx_http_v2_write_uint16(p, s) \ |
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|
348 ((p)[0] = (u_char) ((s) >> 8), \ |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
349 (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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|
350 (p) + sizeof(uint16_t)) |
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351 |
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352 #define ngx_http_v2_write_uint32(p, s) \ |
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353 ((p)[0] = (u_char) ((s) >> 24), \ |
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354 (p)[1] = (u_char) ((s) >> 16), \ |
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355 (p)[2] = (u_char) ((s) >> 8), \ |
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356 (p)[3] = (u_char) (s), \ |
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357 (p) + sizeof(uint32_t)) |
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358 |
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359 #endif |
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360 |
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361 #define ngx_http_v2_write_len_and_type(p, l, t) \ |
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362 ngx_http_v2_write_uint32_aligned(p, (l) << 8 | (t)) |
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363 |
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364 #define ngx_http_v2_write_sid ngx_http_v2_write_uint32 |
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365 |
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366 |
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367 #define ngx_http_v2_indexed(i) (128 + (i)) |
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368 #define ngx_http_v2_inc_indexed(i) (64 + (i)) |
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369 |
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370 #define ngx_http_v2_write_name(dst, src, len, tmp) \ |
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371 ngx_http_v2_string_encode(dst, src, len, tmp, 1) |
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372 #define ngx_http_v2_write_value(dst, src, len, tmp) \ |
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373 ngx_http_v2_string_encode(dst, src, len, tmp, 0) |
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374 |
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375 #define NGX_HTTP_V2_ENCODE_RAW 0 |
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376 #define NGX_HTTP_V2_ENCODE_HUFF 0x80 |
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377 |
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378 #define NGX_HTTP_V2_AUTHORITY_INDEX 1 |
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379 |
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380 #define NGX_HTTP_V2_METHOD_INDEX 2 |
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381 #define NGX_HTTP_V2_METHOD_GET_INDEX 2 |
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382 #define NGX_HTTP_V2_METHOD_POST_INDEX 3 |
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383 |
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384 #define NGX_HTTP_V2_PATH_INDEX 4 |
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385 #define NGX_HTTP_V2_PATH_ROOT_INDEX 4 |
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386 |
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387 #define NGX_HTTP_V2_SCHEME_HTTP_INDEX 6 |
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388 #define NGX_HTTP_V2_SCHEME_HTTPS_INDEX 7 |
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389 |
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390 #define NGX_HTTP_V2_STATUS_INDEX 8 |
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391 #define NGX_HTTP_V2_STATUS_200_INDEX 8 |
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392 #define NGX_HTTP_V2_STATUS_204_INDEX 9 |
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393 #define NGX_HTTP_V2_STATUS_206_INDEX 10 |
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394 #define NGX_HTTP_V2_STATUS_304_INDEX 11 |
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395 #define NGX_HTTP_V2_STATUS_400_INDEX 12 |
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396 #define NGX_HTTP_V2_STATUS_404_INDEX 13 |
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397 #define NGX_HTTP_V2_STATUS_500_INDEX 14 |
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398 |
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399 #define NGX_HTTP_V2_ACCEPT_ENCODING_INDEX 16 |
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400 #define NGX_HTTP_V2_ACCEPT_LANGUAGE_INDEX 17 |
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401 #define NGX_HTTP_V2_CONTENT_LENGTH_INDEX 28 |
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402 #define NGX_HTTP_V2_CONTENT_TYPE_INDEX 31 |
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403 #define NGX_HTTP_V2_DATE_INDEX 33 |
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404 #define NGX_HTTP_V2_LAST_MODIFIED_INDEX 44 |
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405 #define NGX_HTTP_V2_LOCATION_INDEX 46 |
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406 #define NGX_HTTP_V2_SERVER_INDEX 54 |
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407 #define NGX_HTTP_V2_USER_AGENT_INDEX 58 |
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408 #define NGX_HTTP_V2_VARY_INDEX 59 |
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409 |
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410 |
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411 u_char *ngx_http_v2_string_encode(u_char *dst, u_char *src, size_t len, |
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412 u_char *tmp, ngx_uint_t lower); |
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413 |
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414 |
6246
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415 #endif /* _NGX_HTTP_V2_H_INCLUDED_ */ |