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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #ifndef _NGX_CONNECTION_H_INCLUDED_
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8 #define _NGX_CONNECTION_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
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14
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15 typedef struct {
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16 ngx_socket_t fd;
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17
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18 struct sockaddr *sockaddr;
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19 socklen_t socklen; /* size of sockaddr */
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66
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20 size_t addr; /* offset to address in sockaddr */
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21 size_t addr_text_max_len;
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0
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22 ngx_str_t addr_text;
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23
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24 int family;
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25 int type;
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26
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27 void (*handler)(ngx_connection_t *c); /* handler of accepted
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28 connection */
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29 void *ctx; /* ngx_http_conf_ctx_t, for example */
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30 void *servers; /* array of ngx_http_in_addr_t, for example */
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31
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32 ngx_log_t *log;
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33 int backlog;
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34
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35 size_t pool_size;
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36 size_t post_accept_buffer_size; /* should be here because
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37 of the AcceptEx() preread */
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38 time_t post_accept_timeout; /* should be here because
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39 of the deferred accept */
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40
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4
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41 unsigned open:1;
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0
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42 unsigned remain:1;
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43 unsigned ignore:1;
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44
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45 unsigned bound:1; /* already bound */
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46 unsigned inherited:1; /* inherited from previous process */
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47 unsigned nonblocking_accept:1;
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86
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48 unsigned change_backlog:1;
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49 unsigned nonblocking:1;
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50 unsigned shared:1; /* shared between threads or processes */
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72
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51 unsigned addr_ntop:1;
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52
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18
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53 #if (NGX_HAVE_DEFERRED_ACCEPT)
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54 unsigned deferred_accept:1;
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72
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55 unsigned delete_deferred:1;
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56 unsigned add_deferred:1;
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57 #ifdef SO_ACCEPTFILTER
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58 char *accept_filter;
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59 #endif
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0
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60 #endif
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61
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62 } ngx_listening_t;
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63
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64
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65 typedef enum {
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66 NGX_ERROR_CRIT = 0,
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67 NGX_ERROR_ERR,
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68 NGX_ERROR_INFO,
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69 NGX_ERROR_IGNORE_ECONNRESET
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70 } ngx_connection_log_error_e;
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71
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72
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73 typedef enum {
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32
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74 NGX_TCP_NODELAY_UNSET = 0,
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75 NGX_TCP_NODELAY_SET,
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76 NGX_TCP_NODELAY_DISABLED
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77 } ngx_connection_tcp_nodelay_e;
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78
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79
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80 typedef enum {
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81 NGX_TCP_NOPUSH_UNSET = 0,
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32
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82 NGX_TCP_NOPUSH_SET,
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83 NGX_TCP_NOPUSH_DISABLED
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0
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84 } ngx_connection_tcp_nopush_e;
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85
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86
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87 struct ngx_connection_s {
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88 void *data;
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89 ngx_event_t *read;
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90 ngx_event_t *write;
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91
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92 ngx_socket_t fd;
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93
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94 ngx_recv_pt recv;
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88
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95 ngx_send_pt send;
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96 ngx_send_chain_pt send_chain;
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97
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98 ngx_listening_t *listening;
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99
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100 off_t sent;
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101
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102 void *ctx;
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103 void *servers;
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104
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105
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106 ngx_log_t *log;
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107
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108 ngx_pool_t *pool;
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109
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110 struct sockaddr *sockaddr;
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111 socklen_t socklen;
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112 ngx_str_t addr_text;
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113
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114 #if (NGX_OPENSSL)
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115 ngx_ssl_t *ssl;
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116 #endif
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117
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18
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118 #if (NGX_HAVE_IOCP)
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119 struct sockaddr *local_sockaddr;
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120 socklen_t local_socklen;
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121 #endif
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122
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123 ngx_buf_t *buffer;
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124
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44
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125 ngx_atomic_uint_t number;
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0
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126
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32
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127 unsigned log_error:2; /* ngx_connection_log_error_e */
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0
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128
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129 unsigned buffered:1;
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130 unsigned single_connection:1;
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131 unsigned unexpected_eof:1;
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132 unsigned timedout:1;
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76
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133 unsigned closed:1;
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2
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134
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135 unsigned sendfile:1;
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136 unsigned sndlowat:1;
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32
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137 unsigned tcp_nodelay:2; /* ngx_connection_tcp_nodelay_e */
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138 unsigned tcp_nopush:2; /* ngx_connection_tcp_nopush_e */
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2
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139
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18
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140 #if (NGX_HAVE_IOCP)
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141 unsigned accept_context_updated:1;
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142 #endif
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143
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144 #if (NGX_THREADS)
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145 ngx_atomic_t lock;
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146 #endif
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147 };
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148
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149
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150 #ifndef ngx_ssl_set_nosendshut
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151 #define ngx_ssl_set_nosendshut(ssl)
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152 #endif
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153
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154
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155 ngx_listening_t *ngx_listening_inet_stream_socket(ngx_conf_t *cf,
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70
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156 in_addr_t addr, in_port_t port);
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0
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157 ngx_int_t ngx_set_inherited_sockets(ngx_cycle_t *cycle);
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158 ngx_int_t ngx_open_listening_sockets(ngx_cycle_t *cycle);
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159 void ngx_close_listening_sockets(ngx_cycle_t *cycle);
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160 void ngx_close_connection(ngx_connection_t *c);
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161 ngx_int_t ngx_connection_error(ngx_connection_t *c, ngx_err_t err, char *text);
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162
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163
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164 extern ngx_os_io_t ngx_io;
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165
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166
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167 #endif /* _NGX_CONNECTION_H_INCLUDED_ */
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