Mercurial > hg > nginx
annotate src/http/v2/ngx_http_v2.h @ 6496:887cca40ba6a
HTTP/2: rewritten handling of request body.
There are two improvements:
1. Support for request body filters;
2. Receiving of request body is started only after
the ngx_http_read_client_request_body() call.
The last one fixes the problem when the client_max_body_size value might not be
respected from the right location if the location was changed either during the
process of receiving body or after the whole body had been received.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Fri, 01 Apr 2016 15:56:03 +0300 |
parents | 92464ebace8e |
children | 9d66d7ed2abb |
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_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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27 #define NGX_HTTP_V2_FRAME_HEADER_SIZE 9 |
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28 |
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29 /* frame types */ |
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30 #define NGX_HTTP_V2_DATA_FRAME 0x0 |
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31 #define NGX_HTTP_V2_HEADERS_FRAME 0x1 |
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32 #define NGX_HTTP_V2_PRIORITY_FRAME 0x2 |
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33 #define NGX_HTTP_V2_RST_STREAM_FRAME 0x3 |
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34 #define NGX_HTTP_V2_SETTINGS_FRAME 0x4 |
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35 #define NGX_HTTP_V2_PUSH_PROMISE_FRAME 0x5 |
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36 #define NGX_HTTP_V2_PING_FRAME 0x6 |
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37 #define NGX_HTTP_V2_GOAWAY_FRAME 0x7 |
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38 #define NGX_HTTP_V2_WINDOW_UPDATE_FRAME 0x8 |
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39 #define NGX_HTTP_V2_CONTINUATION_FRAME 0x9 |
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40 |
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41 /* frame flags */ |
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42 #define NGX_HTTP_V2_NO_FLAG 0x00 |
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43 #define NGX_HTTP_V2_ACK_FLAG 0x01 |
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44 #define NGX_HTTP_V2_END_STREAM_FLAG 0x01 |
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45 #define NGX_HTTP_V2_END_HEADERS_FLAG 0x04 |
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46 #define NGX_HTTP_V2_PADDED_FLAG 0x08 |
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47 #define NGX_HTTP_V2_PRIORITY_FLAG 0x20 |
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48 |
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49 |
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50 typedef struct ngx_http_v2_connection_s ngx_http_v2_connection_t; |
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51 typedef struct ngx_http_v2_node_s ngx_http_v2_node_t; |
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52 typedef struct ngx_http_v2_out_frame_s ngx_http_v2_out_frame_t; |
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53 |
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54 |
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55 typedef u_char *(*ngx_http_v2_handler_pt) (ngx_http_v2_connection_t *h2c, |
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56 u_char *pos, u_char *end); |
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57 |
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58 |
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59 typedef struct { |
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60 ngx_str_t name; |
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61 ngx_str_t value; |
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62 } ngx_http_v2_header_t; |
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63 |
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64 |
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65 typedef struct { |
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66 ngx_uint_t sid; |
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67 size_t length; |
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68 size_t padding; |
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69 unsigned flags:8; |
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70 |
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71 unsigned incomplete:1; |
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72 unsigned keep_pool:1; |
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73 |
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74 /* HPACK */ |
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75 unsigned parse_name:1; |
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76 unsigned parse_value:1; |
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77 unsigned index:1; |
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78 ngx_http_v2_header_t header; |
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79 size_t header_limit; |
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80 u_char field_state; |
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81 u_char *field_start; |
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82 u_char *field_end; |
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83 size_t field_rest; |
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84 ngx_pool_t *pool; |
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85 |
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86 ngx_http_v2_stream_t *stream; |
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87 |
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88 u_char buffer[NGX_HTTP_V2_STATE_BUFFER_SIZE]; |
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89 size_t buffer_used; |
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90 ngx_http_v2_handler_pt handler; |
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91 } ngx_http_v2_state_t; |
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92 |
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93 |
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94 |
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95 typedef struct { |
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96 ngx_http_v2_header_t **entries; |
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97 |
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98 ngx_uint_t added; |
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99 ngx_uint_t deleted; |
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100 ngx_uint_t reused; |
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101 ngx_uint_t allocated; |
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102 |
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103 size_t size; |
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104 size_t free; |
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105 u_char *storage; |
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106 u_char *pos; |
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107 } ngx_http_v2_hpack_t; |
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108 |
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109 |
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110 struct ngx_http_v2_connection_s { |
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111 ngx_connection_t *connection; |
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112 ngx_http_connection_t *http_connection; |
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113 |
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114 ngx_uint_t processing; |
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115 |
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The HTTP/2 implementation (RFC 7240, 7241).
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116 size_t send_window; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
117 size_t recv_window; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
118 size_t init_window; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
119 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
120 size_t frame_size; |
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The HTTP/2 implementation (RFC 7240, 7241).
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121 |
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The HTTP/2 implementation (RFC 7240, 7241).
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122 ngx_queue_t waiting; |
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The HTTP/2 implementation (RFC 7240, 7241).
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123 |
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The HTTP/2 implementation (RFC 7240, 7241).
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124 ngx_http_v2_state_t state; |
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The HTTP/2 implementation (RFC 7240, 7241).
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125 |
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The HTTP/2 implementation (RFC 7240, 7241).
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126 ngx_http_v2_hpack_t hpack; |
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The HTTP/2 implementation (RFC 7240, 7241).
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127 |
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The HTTP/2 implementation (RFC 7240, 7241).
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128 ngx_pool_t *pool; |
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The HTTP/2 implementation (RFC 7240, 7241).
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129 |
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The HTTP/2 implementation (RFC 7240, 7241).
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130 ngx_http_v2_out_frame_t *free_frames; |
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The HTTP/2 implementation (RFC 7240, 7241).
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131 ngx_connection_t *free_fake_connections; |
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The HTTP/2 implementation (RFC 7240, 7241).
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132 |
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133 ngx_http_v2_node_t **streams_index; |
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The HTTP/2 implementation (RFC 7240, 7241).
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134 |
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The HTTP/2 implementation (RFC 7240, 7241).
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135 ngx_http_v2_out_frame_t *last_out; |
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The HTTP/2 implementation (RFC 7240, 7241).
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136 |
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The HTTP/2 implementation (RFC 7240, 7241).
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137 ngx_queue_t posted; |
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The HTTP/2 implementation (RFC 7240, 7241).
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138 ngx_queue_t dependencies; |
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The HTTP/2 implementation (RFC 7240, 7241).
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139 ngx_queue_t closed; |
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The HTTP/2 implementation (RFC 7240, 7241).
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140 |
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The HTTP/2 implementation (RFC 7240, 7241).
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141 ngx_uint_t last_sid; |
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The HTTP/2 implementation (RFC 7240, 7241).
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142 |
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The HTTP/2 implementation (RFC 7240, 7241).
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143 unsigned closed_nodes:8; |
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The HTTP/2 implementation (RFC 7240, 7241).
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144 unsigned blocked:1; |
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The HTTP/2 implementation (RFC 7240, 7241).
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145 }; |
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The HTTP/2 implementation (RFC 7240, 7241).
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146 |
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The HTTP/2 implementation (RFC 7240, 7241).
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147 |
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The HTTP/2 implementation (RFC 7240, 7241).
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148 struct ngx_http_v2_node_s { |
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The HTTP/2 implementation (RFC 7240, 7241).
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149 ngx_uint_t id; |
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The HTTP/2 implementation (RFC 7240, 7241).
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150 ngx_http_v2_node_t *index; |
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The HTTP/2 implementation (RFC 7240, 7241).
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151 ngx_http_v2_node_t *parent; |
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The HTTP/2 implementation (RFC 7240, 7241).
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152 ngx_queue_t queue; |
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The HTTP/2 implementation (RFC 7240, 7241).
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153 ngx_queue_t children; |
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The HTTP/2 implementation (RFC 7240, 7241).
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154 ngx_queue_t reuse; |
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The HTTP/2 implementation (RFC 7240, 7241).
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155 ngx_uint_t rank; |
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The HTTP/2 implementation (RFC 7240, 7241).
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156 ngx_uint_t weight; |
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The HTTP/2 implementation (RFC 7240, 7241).
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157 double rel_weight; |
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The HTTP/2 implementation (RFC 7240, 7241).
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158 ngx_http_v2_stream_t *stream; |
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The HTTP/2 implementation (RFC 7240, 7241).
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159 }; |
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The HTTP/2 implementation (RFC 7240, 7241).
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160 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
161 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
162 struct ngx_http_v2_stream_s { |
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The HTTP/2 implementation (RFC 7240, 7241).
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163 ngx_http_request_t *request; |
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The HTTP/2 implementation (RFC 7240, 7241).
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164 ngx_http_v2_connection_t *connection; |
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The HTTP/2 implementation (RFC 7240, 7241).
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165 ngx_http_v2_node_t *node; |
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The HTTP/2 implementation (RFC 7240, 7241).
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166 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
167 ngx_uint_t queued; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
168 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
169 /* |
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The HTTP/2 implementation (RFC 7240, 7241).
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170 * A change to SETTINGS_INITIAL_WINDOW_SIZE could cause the |
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The HTTP/2 implementation (RFC 7240, 7241).
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171 * send_window to become negative, hence it's signed. |
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The HTTP/2 implementation (RFC 7240, 7241).
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172 */ |
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The HTTP/2 implementation (RFC 7240, 7241).
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173 ssize_t send_window; |
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The HTTP/2 implementation (RFC 7240, 7241).
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174 size_t recv_window; |
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The HTTP/2 implementation (RFC 7240, 7241).
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175 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
176 ngx_http_v2_out_frame_t *free_frames; |
6293
ec6b07be88a5
HTTP/2: reused HEADERS and CONTINUATION frames buffers.
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177 ngx_chain_t *free_frame_headers; |
6246
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The HTTP/2 implementation (RFC 7240, 7241).
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178 ngx_chain_t *free_bufs; |
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The HTTP/2 implementation (RFC 7240, 7241).
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179 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
180 ngx_queue_t queue; |
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The HTTP/2 implementation (RFC 7240, 7241).
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181 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
182 ngx_array_t *cookies; |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
183 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
184 size_t header_limit; |
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The HTTP/2 implementation (RFC 7240, 7241).
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185 |
6411
8ec349bb60b2
HTTP/2: always use temporary pool for processing headers.
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parents:
6395
diff
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|
186 ngx_pool_t *pool; |
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HTTP/2: always use temporary pool for processing headers.
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|
187 |
6246
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The HTTP/2 implementation (RFC 7240, 7241).
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|
188 unsigned handled:1; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
189 unsigned blocked:1; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
190 unsigned exhausted:1; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
191 unsigned in_closed:1; |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
192 unsigned out_closed:1; |
6495
92464ebace8e
HTTP/2: sending RST_STREAM with NO_ERROR to discard request body.
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193 unsigned rst_sent:1; |
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HTTP/2: rewritten handling of request body.
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diff
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|
194 unsigned no_flow_control:1; |
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HTTP/2: rewritten handling of request body.
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|
195 unsigned skip_data:1; |
6246
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The HTTP/2 implementation (RFC 7240, 7241).
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|
196 }; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
197 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
198 |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
199 struct ngx_http_v2_out_frame_s { |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
200 ngx_http_v2_out_frame_t *next; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
201 ngx_chain_t *first; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
202 ngx_chain_t *last; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
203 ngx_int_t (*handler)(ngx_http_v2_connection_t *h2c, |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
204 ngx_http_v2_out_frame_t *frame); |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
205 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
206 ngx_http_v2_stream_t *stream; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
207 size_t length; |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
208 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
209 unsigned blocked:1; |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
210 unsigned fin:1; |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
211 }; |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
changeset
|
212 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
213 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
214 static ngx_inline void |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
215 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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parents:
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|
216 ngx_http_v2_out_frame_t *frame) |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
217 { |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
218 ngx_http_v2_out_frame_t **out; |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
219 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
220 for (out = &h2c->last_out; *out; out = &(*out)->next) { |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
221 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
222 if ((*out)->blocked || (*out)->stream == NULL) { |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
223 break; |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
224 } |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
225 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
226 if ((*out)->stream->node->rank < frame->stream->node->rank |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
227 || ((*out)->stream->node->rank == frame->stream->node->rank |
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The HTTP/2 implementation (RFC 7240, 7241).
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|
228 && (*out)->stream->node->rel_weight |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
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|
229 >= frame->stream->node->rel_weight)) |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
230 { |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
changeset
|
231 break; |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
232 } |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
233 } |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
234 |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
changeset
|
235 frame->next = *out; |
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The HTTP/2 implementation (RFC 7240, 7241).
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parents:
diff
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|
236 *out = frame; |
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237 } |
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238 |
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239 |
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240 static ngx_inline void |
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241 ngx_http_v2_queue_blocked_frame(ngx_http_v2_connection_t *h2c, |
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242 ngx_http_v2_out_frame_t *frame) |
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243 { |
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244 ngx_http_v2_out_frame_t **out; |
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245 |
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246 for (out = &h2c->last_out; *out; out = &(*out)->next) |
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247 { |
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248 if ((*out)->blocked || (*out)->stream == NULL) { |
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249 break; |
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250 } |
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251 } |
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252 |
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253 frame->next = *out; |
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254 *out = frame; |
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255 } |
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256 |
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257 |
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258 void ngx_http_v2_init(ngx_event_t *rev); |
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259 void ngx_http_v2_request_headers_init(void); |
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260 |
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261 ngx_int_t ngx_http_v2_read_request_body(ngx_http_request_t *r, |
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262 ngx_http_client_body_handler_pt post_handler); |
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263 |
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264 void ngx_http_v2_close_stream(ngx_http_v2_stream_t *stream, ngx_int_t rc); |
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265 |
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266 ngx_int_t ngx_http_v2_send_output_queue(ngx_http_v2_connection_t *h2c); |
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267 |
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268 |
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269 ngx_int_t ngx_http_v2_get_indexed_header(ngx_http_v2_connection_t *h2c, |
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270 ngx_uint_t index, ngx_uint_t name_only); |
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271 ngx_int_t ngx_http_v2_add_header(ngx_http_v2_connection_t *h2c, |
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272 ngx_http_v2_header_t *header); |
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273 ngx_int_t ngx_http_v2_table_size(ngx_http_v2_connection_t *h2c, size_t size); |
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274 |
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275 |
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276 ngx_int_t ngx_http_v2_huff_decode(u_char *state, u_char *src, size_t len, |
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277 u_char **dst, ngx_uint_t last, ngx_log_t *log); |
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278 size_t ngx_http_v2_huff_encode(u_char *src, size_t len, u_char *dst, |
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279 ngx_uint_t lower); |
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280 |
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281 |
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282 #define ngx_http_v2_prefix(bits) ((1 << (bits)) - 1) |
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283 |
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284 |
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285 #if (NGX_HAVE_NONALIGNED) |
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286 |
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287 #define ngx_http_v2_parse_uint16(p) ntohs(*(uint16_t *) (p)) |
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288 #define ngx_http_v2_parse_uint32(p) ntohl(*(uint32_t *) (p)) |
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289 |
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290 #else |
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291 |
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292 #define ngx_http_v2_parse_uint16(p) ((p)[0] << 8 | (p)[1]) |
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293 #define ngx_http_v2_parse_uint32(p) \ |
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294 ((p)[0] << 24 | (p)[1] << 16 | (p)[2] << 8 | (p)[3]) |
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295 |
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296 #endif |
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297 |
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298 #define ngx_http_v2_parse_length(p) ((p) >> 8) |
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299 #define ngx_http_v2_parse_type(p) ((p) & 0xff) |
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300 #define ngx_http_v2_parse_sid(p) (ngx_http_v2_parse_uint32(p) & 0x7fffffff) |
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301 #define ngx_http_v2_parse_window(p) (ngx_http_v2_parse_uint32(p) & 0x7fffffff) |
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302 |
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303 |
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304 #define ngx_http_v2_write_uint16_aligned(p, s) \ |
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305 (*(uint16_t *) (p) = htons((uint16_t) (s)), (p) + sizeof(uint16_t)) |
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306 #define ngx_http_v2_write_uint32_aligned(p, s) \ |
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307 (*(uint32_t *) (p) = htonl((uint32_t) (s)), (p) + sizeof(uint32_t)) |
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308 |
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309 #if (NGX_HAVE_NONALIGNED) |
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310 |
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311 #define ngx_http_v2_write_uint16 ngx_http_v2_write_uint16_aligned |
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312 #define ngx_http_v2_write_uint32 ngx_http_v2_write_uint32_aligned |
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313 |
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314 #else |
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315 |
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316 #define ngx_http_v2_write_uint16(p, s) \ |
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317 ((p)[0] = (u_char) ((s) >> 8), \ |
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318 (p)[1] = (u_char) (s), \ |
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319 (p) + sizeof(uint16_t)) |
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320 |
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321 #define ngx_http_v2_write_uint32(p, s) \ |
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322 ((p)[0] = (u_char) ((s) >> 24), \ |
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323 (p)[1] = (u_char) ((s) >> 16), \ |
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324 (p)[2] = (u_char) ((s) >> 8), \ |
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325 (p)[3] = (u_char) (s), \ |
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326 (p) + sizeof(uint32_t)) |
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327 |
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328 #endif |
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329 |
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330 #define ngx_http_v2_write_len_and_type(p, l, t) \ |
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331 ngx_http_v2_write_uint32_aligned(p, (l) << 8 | (t)) |
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332 |
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333 #define ngx_http_v2_write_sid ngx_http_v2_write_uint32 |
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334 |
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335 #endif /* _NGX_HTTP_V2_H_INCLUDED_ */ |