Mercurial > hg > nginx-quic
annotate src/http/ngx_http_spdy_module.c @ 5862:ecbb99aa0e12
Limit req: use complex value in limit_req_zone.
One intentional side effect of this change is that key is allowed only
in the first position. Previously, it was possible to specify the key
variable at any position, but that was never documented, and is contrary
with nginx configuration practice for positional parameters.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Wed, 24 Sep 2014 21:55:19 +0400 |
parents | 02ee639d18a8 |
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Preliminary experimental support for SPDY draft 2.
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1 |
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2 /* |
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3 * Copyright (C) Nginx, Inc. |
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4 * Copyright (C) Valentin V. Bartenev |
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_http.h> |
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11 #include <ngx_http_spdy_module.h> |
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12 |
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13 |
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14 static ngx_int_t ngx_http_spdy_add_variables(ngx_conf_t *cf); |
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15 |
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16 static ngx_int_t ngx_http_spdy_variable(ngx_http_request_t *r, |
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17 ngx_http_variable_value_t *v, uintptr_t data); |
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18 static ngx_int_t ngx_http_spdy_request_priority_variable(ngx_http_request_t *r, |
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19 ngx_http_variable_value_t *v, uintptr_t data); |
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20 |
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21 static ngx_int_t ngx_http_spdy_module_init(ngx_cycle_t *cycle); |
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22 |
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23 static void *ngx_http_spdy_create_main_conf(ngx_conf_t *cf); |
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24 static char *ngx_http_spdy_init_main_conf(ngx_conf_t *cf, void *conf); |
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25 static void *ngx_http_spdy_create_srv_conf(ngx_conf_t *cf); |
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26 static char *ngx_http_spdy_merge_srv_conf(ngx_conf_t *cf, void *parent, |
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27 void *child); |
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28 static void *ngx_http_spdy_create_loc_conf(ngx_conf_t *cf); |
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29 static char *ngx_http_spdy_merge_loc_conf(ngx_conf_t *cf, void *parent, |
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30 void *child); |
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31 |
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32 static char *ngx_http_spdy_recv_buffer_size(ngx_conf_t *cf, void *post, |
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33 void *data); |
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34 static char *ngx_http_spdy_pool_size(ngx_conf_t *cf, void *post, void *data); |
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35 static char *ngx_http_spdy_streams_index_mask(ngx_conf_t *cf, void *post, |
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36 void *data); |
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37 static char *ngx_http_spdy_chunk_size(ngx_conf_t *cf, void *post, void *data); |
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38 |
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39 |
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40 static ngx_conf_num_bounds_t ngx_http_spdy_headers_comp_bounds = { |
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41 ngx_conf_check_num_bounds, 0, 9 |
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42 }; |
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43 |
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44 static ngx_conf_post_t ngx_http_spdy_recv_buffer_size_post = |
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45 { ngx_http_spdy_recv_buffer_size }; |
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46 static ngx_conf_post_t ngx_http_spdy_pool_size_post = |
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47 { ngx_http_spdy_pool_size }; |
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48 static ngx_conf_post_t ngx_http_spdy_streams_index_mask_post = |
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49 { ngx_http_spdy_streams_index_mask }; |
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50 static ngx_conf_post_t ngx_http_spdy_chunk_size_post = |
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51 { ngx_http_spdy_chunk_size }; |
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52 |
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53 |
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54 static ngx_command_t ngx_http_spdy_commands[] = { |
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55 |
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56 { ngx_string("spdy_recv_buffer_size"), |
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57 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, |
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58 ngx_conf_set_size_slot, |
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59 NGX_HTTP_MAIN_CONF_OFFSET, |
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60 offsetof(ngx_http_spdy_main_conf_t, recv_buffer_size), |
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61 &ngx_http_spdy_recv_buffer_size_post }, |
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62 |
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63 { ngx_string("spdy_pool_size"), |
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64 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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65 ngx_conf_set_size_slot, |
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66 NGX_HTTP_SRV_CONF_OFFSET, |
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67 offsetof(ngx_http_spdy_srv_conf_t, pool_size), |
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68 &ngx_http_spdy_pool_size_post }, |
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69 |
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70 { ngx_string("spdy_max_concurrent_streams"), |
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71 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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72 ngx_conf_set_num_slot, |
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73 NGX_HTTP_SRV_CONF_OFFSET, |
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74 offsetof(ngx_http_spdy_srv_conf_t, concurrent_streams), |
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75 NULL }, |
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76 |
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77 { ngx_string("spdy_streams_index_size"), |
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78 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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79 ngx_conf_set_num_slot, |
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80 NGX_HTTP_SRV_CONF_OFFSET, |
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81 offsetof(ngx_http_spdy_srv_conf_t, streams_index_mask), |
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82 &ngx_http_spdy_streams_index_mask_post }, |
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83 |
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84 { ngx_string("spdy_recv_timeout"), |
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85 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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86 ngx_conf_set_msec_slot, |
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87 NGX_HTTP_SRV_CONF_OFFSET, |
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88 offsetof(ngx_http_spdy_srv_conf_t, recv_timeout), |
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89 NULL }, |
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90 |
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91 { ngx_string("spdy_keepalive_timeout"), |
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92 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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93 ngx_conf_set_msec_slot, |
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94 NGX_HTTP_SRV_CONF_OFFSET, |
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95 offsetof(ngx_http_spdy_srv_conf_t, keepalive_timeout), |
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96 NULL }, |
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97 |
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98 { ngx_string("spdy_headers_comp"), |
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99 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1, |
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100 ngx_conf_set_num_slot, |
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101 NGX_HTTP_SRV_CONF_OFFSET, |
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102 offsetof(ngx_http_spdy_srv_conf_t, headers_comp), |
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103 &ngx_http_spdy_headers_comp_bounds }, |
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104 |
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105 { ngx_string("spdy_chunk_size"), |
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106 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
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107 ngx_conf_set_size_slot, |
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108 NGX_HTTP_LOC_CONF_OFFSET, |
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109 offsetof(ngx_http_spdy_loc_conf_t, chunk_size), |
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110 &ngx_http_spdy_chunk_size_post }, |
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111 |
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112 ngx_null_command |
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|
113 }; |
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114 |
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115 |
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116 static ngx_http_module_t ngx_http_spdy_module_ctx = { |
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117 ngx_http_spdy_add_variables, /* preconfiguration */ |
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parents:
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|
118 NULL, /* postconfiguration */ |
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Preliminary experimental support for SPDY draft 2.
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parents:
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|
119 |
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Preliminary experimental support for SPDY draft 2.
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|
120 ngx_http_spdy_create_main_conf, /* create main configuration */ |
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|
121 ngx_http_spdy_init_main_conf, /* init main configuration */ |
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122 |
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123 ngx_http_spdy_create_srv_conf, /* create server configuration */ |
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|
124 ngx_http_spdy_merge_srv_conf, /* merge server configuration */ |
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125 |
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126 ngx_http_spdy_create_loc_conf, /* create location configuration */ |
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127 ngx_http_spdy_merge_loc_conf /* merge location configuration */ |
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128 }; |
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129 |
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parents:
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130 |
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131 ngx_module_t ngx_http_spdy_module = { |
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132 NGX_MODULE_V1, |
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133 &ngx_http_spdy_module_ctx, /* module context */ |
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134 ngx_http_spdy_commands, /* module directives */ |
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|
135 NGX_HTTP_MODULE, /* module type */ |
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|
136 NULL, /* init master */ |
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|
137 ngx_http_spdy_module_init, /* init module */ |
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|
138 NULL, /* init process */ |
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|
139 NULL, /* init thread */ |
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parents:
diff
changeset
|
140 NULL, /* exit thread */ |
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parents:
diff
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|
141 NULL, /* exit process */ |
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parents:
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|
142 NULL, /* exit master */ |
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parents:
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|
143 NGX_MODULE_V1_PADDING |
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144 }; |
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parents:
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|
145 |
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parents:
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|
146 |
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147 static ngx_http_variable_t ngx_http_spdy_vars[] = { |
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148 |
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149 { ngx_string("spdy"), NULL, |
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150 ngx_http_spdy_variable, 0, 0, 0 }, |
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|
151 |
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152 { ngx_string("spdy_request_priority"), NULL, |
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153 ngx_http_spdy_request_priority_variable, 0, 0, 0 }, |
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154 |
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155 { ngx_null_string, NULL, NULL, 0, 0, 0 } |
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|
156 }; |
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|
157 |
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|
158 |
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|
159 static ngx_int_t |
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|
160 ngx_http_spdy_add_variables(ngx_conf_t *cf) |
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|
161 { |
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|
162 ngx_http_variable_t *var, *v; |
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163 |
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|
164 for (v = ngx_http_spdy_vars; v->name.len; v++) { |
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|
165 var = ngx_http_add_variable(cf, &v->name, v->flags); |
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|
166 if (var == NULL) { |
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|
167 return NGX_ERROR; |
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parents:
diff
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|
168 } |
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parents:
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|
169 |
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|
170 var->get_handler = v->get_handler; |
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|
171 var->data = v->data; |
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|
172 } |
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parents:
diff
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|
173 |
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parents:
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|
174 return NGX_OK; |
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parents:
diff
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|
175 } |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
176 |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
177 |
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parents:
diff
changeset
|
178 static ngx_int_t |
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parents:
diff
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|
179 ngx_http_spdy_variable(ngx_http_request_t *r, |
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parents:
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|
180 ngx_http_variable_value_t *v, uintptr_t data) |
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diff
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|
181 { |
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parents:
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|
182 if (r->spdy_stream) { |
5549
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SPDY: protocol implementation switched to spdy/3.1.
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parents:
5515
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|
183 v->len = sizeof("3.1") - 1; |
5121
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|
184 v->valid = 1; |
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parents:
diff
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|
185 v->no_cacheable = 0; |
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parents:
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|
186 v->not_found = 0; |
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SPDY: protocol implementation switched to spdy/3.1.
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|
187 v->data = (u_char *) "3.1"; |
5121
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|
188 |
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parents:
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|
189 return NGX_OK; |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
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|
190 } |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
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|
191 |
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parents:
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|
192 *v = ngx_http_variable_null_value; |
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parents:
diff
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|
193 |
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parents:
diff
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|
194 return NGX_OK; |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
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|
195 } |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
196 |
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Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
197 |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
198 static ngx_int_t |
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parents:
diff
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|
199 ngx_http_spdy_request_priority_variable(ngx_http_request_t *r, |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
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|
200 ngx_http_variable_value_t *v, uintptr_t data) |
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parents:
diff
changeset
|
201 { |
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parents:
diff
changeset
|
202 if (r->spdy_stream) { |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
203 v->len = 1; |
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Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
204 v->valid = 1; |
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Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
205 v->no_cacheable = 0; |
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parents:
diff
changeset
|
206 v->not_found = 0; |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
207 |
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parents:
diff
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|
208 v->data = ngx_pnalloc(r->pool, 1); |
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parents:
diff
changeset
|
209 if (v->data == NULL) { |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
210 return NGX_ERROR; |
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Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
211 } |
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Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
212 |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
213 v->data[0] = '0' + (u_char) r->spdy_stream->priority; |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
214 |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
215 return NGX_OK; |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
216 } |
c0f7b94e88ba
Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
217 |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
218 *v = ngx_http_variable_null_value; |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
219 |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
220 return NGX_OK; |
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Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
221 } |
c0f7b94e88ba
Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
222 |
c0f7b94e88ba
Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
223 |
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Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
224 static ngx_int_t |
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Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
225 ngx_http_spdy_module_init(ngx_cycle_t *cycle) |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
226 { |
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parents:
diff
changeset
|
227 ngx_http_spdy_request_headers_init(); |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
228 |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
229 return NGX_OK; |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
230 } |
c0f7b94e88ba
Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
231 |
c0f7b94e88ba
Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
232 |
c0f7b94e88ba
Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
233 static void * |
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Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
234 ngx_http_spdy_create_main_conf(ngx_conf_t *cf) |
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Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
235 { |
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Preliminary experimental support for SPDY draft 2.
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parents:
diff
changeset
|
236 ngx_http_spdy_main_conf_t *smcf; |
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Preliminary experimental support for SPDY draft 2.
Valentin Bartenev <vbart@nginx.com>
parents:
diff
changeset
|
237 |
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238 smcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_spdy_main_conf_t)); |
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239 if (smcf == NULL) { |
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240 return NULL; |
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241 } |
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242 |
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243 smcf->recv_buffer_size = NGX_CONF_UNSET_SIZE; |
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244 |
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245 return smcf; |
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246 } |
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247 |
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248 |
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249 static char * |
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250 ngx_http_spdy_init_main_conf(ngx_conf_t *cf, void *conf) |
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251 { |
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252 ngx_http_spdy_main_conf_t *smcf = conf; |
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253 |
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254 ngx_conf_init_size_value(smcf->recv_buffer_size, 256 * 1024); |
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255 |
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256 return NGX_CONF_OK; |
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257 } |
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258 |
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259 |
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260 static void * |
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261 ngx_http_spdy_create_srv_conf(ngx_conf_t *cf) |
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262 { |
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263 ngx_http_spdy_srv_conf_t *sscf; |
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264 |
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265 sscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_spdy_srv_conf_t)); |
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266 if (sscf == NULL) { |
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267 return NULL; |
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268 } |
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269 |
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270 sscf->pool_size = NGX_CONF_UNSET_SIZE; |
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271 |
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272 sscf->concurrent_streams = NGX_CONF_UNSET_UINT; |
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273 sscf->streams_index_mask = NGX_CONF_UNSET_UINT; |
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274 |
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275 sscf->recv_timeout = NGX_CONF_UNSET_MSEC; |
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276 sscf->keepalive_timeout = NGX_CONF_UNSET_MSEC; |
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277 |
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278 sscf->headers_comp = NGX_CONF_UNSET; |
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279 |
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280 return sscf; |
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281 } |
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282 |
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283 |
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284 static char * |
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285 ngx_http_spdy_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
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286 { |
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287 ngx_http_spdy_srv_conf_t *prev = parent; |
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288 ngx_http_spdy_srv_conf_t *conf = child; |
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289 |
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290 ngx_conf_merge_size_value(conf->pool_size, prev->pool_size, 4096); |
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291 |
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292 ngx_conf_merge_uint_value(conf->concurrent_streams, |
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293 prev->concurrent_streams, 100); |
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294 |
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295 ngx_conf_merge_uint_value(conf->streams_index_mask, |
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296 prev->streams_index_mask, 32 - 1); |
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297 |
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298 ngx_conf_merge_msec_value(conf->recv_timeout, |
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299 prev->recv_timeout, 30000); |
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300 ngx_conf_merge_msec_value(conf->keepalive_timeout, |
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|
301 prev->keepalive_timeout, 180000); |
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302 |
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303 ngx_conf_merge_value(conf->headers_comp, prev->headers_comp, 0); |
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304 |
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305 return NGX_CONF_OK; |
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306 } |
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307 |
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308 |
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309 static void * |
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310 ngx_http_spdy_create_loc_conf(ngx_conf_t *cf) |
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311 { |
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312 ngx_http_spdy_loc_conf_t *slcf; |
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313 |
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314 slcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_spdy_loc_conf_t)); |
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315 if (slcf == NULL) { |
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316 return NULL; |
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317 } |
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318 |
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319 slcf->chunk_size = NGX_CONF_UNSET_SIZE; |
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320 |
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321 return slcf; |
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322 } |
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323 |
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324 |
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325 static char * |
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326 ngx_http_spdy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) |
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327 { |
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328 ngx_http_spdy_loc_conf_t *prev = parent; |
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329 ngx_http_spdy_loc_conf_t *conf = child; |
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330 |
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|
331 ngx_conf_merge_size_value(conf->chunk_size, prev->chunk_size, 8 * 1024); |
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332 |
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333 return NGX_CONF_OK; |
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334 } |
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335 |
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336 |
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337 static char * |
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338 ngx_http_spdy_recv_buffer_size(ngx_conf_t *cf, void *post, void *data) |
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339 { |
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parents:
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|
340 size_t *sp = data; |
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diff
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|
341 |
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diff
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|
342 if (*sp <= 2 * NGX_SPDY_STATE_BUFFER_SIZE) { |
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|
343 return "value is too small"; |
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diff
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|
344 } |
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diff
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|
345 |
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|
346 return NGX_CONF_OK; |
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|
347 } |
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parents:
diff
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|
348 |
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parents:
diff
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|
349 |
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parents:
diff
changeset
|
350 static char * |
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diff
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|
351 ngx_http_spdy_pool_size(ngx_conf_t *cf, void *post, void *data) |
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parents:
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|
352 { |
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parents:
diff
changeset
|
353 size_t *sp = data; |
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parents:
diff
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|
354 |
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parents:
diff
changeset
|
355 if (*sp < NGX_MIN_POOL_SIZE) { |
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parents:
diff
changeset
|
356 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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parents:
diff
changeset
|
357 "the pool size must be no less than %uz", |
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parents:
diff
changeset
|
358 NGX_MIN_POOL_SIZE); |
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parents:
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changeset
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359 return NGX_CONF_ERROR; |
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360 } |
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361 |
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362 if (*sp % NGX_POOL_ALIGNMENT) { |
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363 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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364 "the pool size must be a multiple of %uz", |
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365 NGX_POOL_ALIGNMENT); |
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366 return NGX_CONF_ERROR; |
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367 } |
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parents:
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368 |
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369 return NGX_CONF_OK; |
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parents:
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370 } |
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parents:
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371 |
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Preliminary experimental support for SPDY draft 2.
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parents:
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372 |
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373 static char * |
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374 ngx_http_spdy_streams_index_mask(ngx_conf_t *cf, void *post, void *data) |
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375 { |
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376 ngx_uint_t *np = data; |
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377 |
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parents:
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378 ngx_uint_t mask; |
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379 |
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380 mask = *np - 1; |
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parents:
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381 |
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parents:
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382 if (*np == 0 || (*np & mask)) { |
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383 return "must be a power of two"; |
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parents:
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|
384 } |
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Valentin Bartenev <vbart@nginx.com>
parents:
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|
385 |
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Valentin Bartenev <vbart@nginx.com>
parents:
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|
386 *np = mask; |
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Valentin Bartenev <vbart@nginx.com>
parents:
diff
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|
387 |
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parents:
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388 return NGX_CONF_OK; |
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389 } |
5515
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390 |
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391 |
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392 static char * |
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393 ngx_http_spdy_chunk_size(ngx_conf_t *cf, void *post, void *data) |
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394 { |
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395 size_t *sp = data; |
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|
396 |
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397 if (*sp == 0) { |
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398 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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399 "the spdy chunk size cannot be zero"); |
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400 return NGX_CONF_ERROR; |
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Valentin Bartenev <vbart@nginx.com>
parents:
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|
401 } |
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parents:
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|
402 |
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parents:
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|
403 if (*sp > NGX_SPDY_MAX_FRAME_SIZE) { |
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parents:
5121
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|
404 *sp = NGX_SPDY_MAX_FRAME_SIZE; |
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Valentin Bartenev <vbart@nginx.com>
parents:
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|
405 } |
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Valentin Bartenev <vbart@nginx.com>
parents:
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|
406 |
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|
407 return NGX_CONF_OK; |
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parents:
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|
408 } |