Mercurial > hg > nginx
annotate src/event/ngx_event.h @ 90:37530da31268
nginx-0.0.1-2003-05-16-19:27:48 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 16 May 2003 15:27:48 +0000 |
parents | 5f6d848dcbef |
children | 637625a2acdb |
rev | line source |
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1 #ifndef _NGX_EVENT_H_INCLUDED_ |
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2 #define _NGX_EVENT_H_INCLUDED_ |
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3 |
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4 |
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5 #include <ngx_config.h> |
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6 #include <ngx_types.h> |
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7 #include <ngx_time.h> |
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8 #include <ngx_socket.h> |
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9 #include <ngx_log.h> |
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10 #include <ngx_alloc.h> |
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11 #include <ngx_array.h> |
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13 /* STUB */ |
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14 #define NGX_LOWAT 10000 |
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16 #define NGX_INVALID_INDEX 0x80000000 |
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18 typedef struct ngx_event_s ngx_event_t; |
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20 #if (HAVE_IOCP) |
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21 typedef struct { |
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22 WSAOVERLAPPED ovlp; |
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23 ngx_event_t *event; |
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24 int error; |
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25 } ngx_event_ovlp_t; |
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26 #endif |
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27 |
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29 struct ngx_event_s { |
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30 void *data; |
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31 void (*event_handler)(ngx_event_t *ev); |
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32 |
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33 #if 0 |
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34 int (*close_handler)(ngx_event_t *ev); |
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35 #endif |
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36 void *context; |
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37 char *action; |
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38 |
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39 unsigned int index; |
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40 |
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41 ngx_event_t *prev; /* queue in mutex(), aio_read(), aio_write() */ |
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42 ngx_event_t *next; /* */ |
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43 |
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44 #if 0 |
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45 int (*timer_handler)(ngx_event_t *ev); |
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46 #endif |
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47 ngx_event_t *timer_prev; |
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48 ngx_event_t *timer_next; |
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49 |
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50 ngx_msec_t timer_delta; |
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51 ngx_msec_t timer; |
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52 |
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53 ngx_log_t *log; |
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54 |
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55 int available; /* kqueue only: */ |
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56 /* accept: number of sockets that wait */ |
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57 /* to be accepted */ |
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58 /* read: bytes to read */ |
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59 /* write: available space in buffer */ |
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60 /* otherwise: */ |
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61 /* accept: 1 if accept many, 0 otherwise */ |
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62 |
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63 unsigned oneshot:1; |
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64 |
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65 #if 0 |
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66 unsigned listening:1; |
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67 #endif |
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68 unsigned write:1; |
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69 |
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70 unsigned instance:1; /* used to detect stale events in kqueue, |
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71 rt signals and epoll */ |
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72 |
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73 unsigned active:1; |
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74 unsigned ready:1; |
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75 unsigned timedout:1; |
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76 unsigned blocked:1; |
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77 unsigned timer_set:1; |
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78 unsigned delayed:1; |
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79 |
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80 unsigned process:1; |
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81 unsigned read_discarded:1; |
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82 |
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83 unsigned ignore_econnreset:1; |
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84 unsigned unexpected_eof:1; |
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85 |
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86 #if (HAVE_DEFERRED_ACCEPT) |
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87 unsigned deferred_accept:1; |
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88 #endif |
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89 |
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90 #if (HAVE_KQUEUE) |
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91 unsigned eof:1; |
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92 int error; |
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93 #endif |
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94 |
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95 #if (HAVE_LOWAT_EVENT) /* kqueue's NOTE_LOWAT */ |
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96 int lowat; |
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97 #endif |
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98 |
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99 |
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100 #if (HAVE_AIO) |
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101 |
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102 #if (HAVE_IOCP) |
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103 ngx_event_ovlp_t ovlp; |
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104 #else |
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105 struct aiocb aiocb; |
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106 #endif |
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107 |
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108 #endif |
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109 |
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110 |
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111 #if 0 |
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112 void *thr_ctx; /* event thread context if $(CC) doesn't |
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113 understand __thread declaration |
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114 and pthread_getspecific() is too costly */ |
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115 |
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116 #if (NGX_EVENT_T_PADDING) |
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117 int padding[NGX_EVENT_T_PADDING]; /* event should not cross |
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118 cache line in SMP */ |
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119 #endif |
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120 #endif |
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121 }; |
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122 |
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123 |
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124 typedef enum { |
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125 NGX_SELECT_EVENT_N = 0, |
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126 #if (HAVE_POLL) |
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127 NGX_POLL_EVENT_N, |
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128 #endif |
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129 #if (HAVE_DEVPOLL) |
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130 NGX_DEVPOLL_EVENT_N, |
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131 #endif |
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132 #if (HAVE_KQUEUE) |
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133 NGX_KQUEUE_EVENT_N, |
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134 #endif |
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135 #if (HAVE_AIO) |
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136 NGX_AIO_EVENT_N, |
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137 #endif |
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138 #if (HAVE_IOCP) |
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139 NGX_IOCP_EVENT_N, |
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140 #endif |
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141 NGX_DUMMY_EVENT_N /* avoid comma at end of enumerator list */ |
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142 } ngx_event_type_e ; |
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143 |
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144 typedef struct { |
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145 int (*add)(ngx_event_t *ev, int event, u_int flags); |
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146 int (*del)(ngx_event_t *ev, int event, u_int flags); |
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147 void (*timer)(ngx_event_t *ev, ngx_msec_t timer); |
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148 int (*process)(ngx_log_t *log); |
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149 int (*read)(ngx_event_t *ev, char *buf, size_t size); |
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150 /* |
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151 int (*write)(ngx_event_t *ev, char *buf, size_t size); |
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152 */ |
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153 } ngx_event_actions_t; |
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154 |
3
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155 |
79
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156 /* The event filter requires to read/write the whole data - |
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157 select, poll, /dev/poll, kqueue. */ |
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158 #define NGX_HAVE_LEVEL_EVENT 1 |
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159 |
79
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160 /* The event filter is deleted after a notification without an additional |
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161 syscall - select, poll, kqueue. */ |
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162 #define NGX_HAVE_ONESHOT_EVENT 2 |
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163 |
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164 /* The event filter notifies only the changes and an initial level - kqueue */ |
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165 #define NGX_HAVE_CLEAR_EVENT 4 |
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166 |
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167 /* The event filter has kqueue features - the eof flag, errno, |
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168 available data, etc */ |
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169 #define NGX_HAVE_KQUEUE_EVENT 8 |
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170 |
79
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171 /* The event filter supports low water mark - kqueue's NOTE_LOWAT. |
87
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172 kqueue in FreeBSD 4.1-4.2 has no NOTE_LOWAT so we need a separate flag */ |
67
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173 #define NGX_HAVE_LOWAT_EVENT 0x00000010 |
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174 |
79
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175 /* The event filter notifies only the changes (the edges) |
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176 but not an initial level - epoll */ |
67
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177 #define NGX_HAVE_EDGE_EVENT 0x00000020 |
60
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178 |
79
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179 /* No need to add or delete the event filters - rt signals */ |
67
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180 #define NGX_HAVE_SIGIO_EVENT 0x00000040 |
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181 |
79
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182 /* No need to add or delete the event filters - overlapped, aio_read, aioread */ |
67
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183 #define NGX_HAVE_AIO_EVENT 0x00000080 |
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|
184 |
67
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185 /* Need to add socket or handle only once - i/o completion port. |
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186 It also requires HAVE_AIO_EVENT and NGX_HAVE_AIO_EVENT to be set */ |
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187 #define NGX_HAVE_IOCP_EVENT 0x00000100 |
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188 |
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189 |
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190 #define NGX_USE_LEVEL_EVENT 0x00010000 |
75
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191 #define NGX_USE_AIO_EVENT 0x00020000 |
64
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|
192 |
59
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|
193 |
69
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194 /* Event filter is deleted before closing file. |
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195 Has no meaning for select, poll, epoll. |
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|
196 |
53
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197 kqueue: kqueue deletes event filters for file that closed |
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198 so we need only to delete filters in user-level batch array |
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199 /dev/poll: we need to flush POLLREMOVE event before closing file */ |
53
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200 #define NGX_CLOSE_EVENT 1 |
0
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|
201 |
26
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|
202 |
0
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203 #if (HAVE_KQUEUE) |
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204 |
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205 #define NGX_READ_EVENT EVFILT_READ |
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|
206 #define NGX_WRITE_EVENT EVFILT_WRITE |
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|
207 |
69
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diff
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|
208 #define NGX_ENABLE_EVENT EV_ENABLE |
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209 #define NGX_DISABLE_EVENT EV_DISABLE |
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210 |
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211 /* NGX_CLOSE_EVENT is the module flag and it would not go into a kernel |
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212 so we need to choose the value that would not interfere with any existent |
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213 and future flags. kqueue has such values - EV_FLAG1, EV_EOF and EV_ERROR. |
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214 They are reserved and cleared on a kernel entrance */ |
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215 #undef NGX_CLOSE_EVENT |
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216 #define NGX_CLOSE_EVENT EV_FLAG1 |
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217 |
6
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218 #define NGX_LEVEL_EVENT 0 |
0
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219 #define NGX_ONESHOT_EVENT EV_ONESHOT |
69
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220 #define NGX_CLEAR_EVENT EV_CLEAR |
8
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221 |
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222 #ifndef HAVE_CLEAR_EVENT |
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223 #define HAVE_CLEAR_EVENT 1 |
9
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nginx-0.0.1-2002-09-07-14:14:25 import
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224 #endif |
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225 |
0
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226 |
39
83fa61cd3d2f
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227 #elif (HAVE_POLL) || (HAVE_DEVPOLL) |
36
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228 |
c14d7232b11f
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229 #define NGX_READ_EVENT POLLIN |
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230 #define NGX_WRITE_EVENT POLLOUT |
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231 |
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232 #define NGX_LEVEL_EVENT 0 |
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233 #define NGX_ONESHOT_EVENT 1 |
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234 |
0
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235 #else |
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236 |
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237 #define NGX_READ_EVENT 0 |
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238 #define NGX_WRITE_EVENT 1 |
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239 |
6
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
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3
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240 #define NGX_LEVEL_EVENT 0 |
0
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nginx-0.0.1-2002-08-06-20:39:45 import
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241 #define NGX_ONESHOT_EVENT 1 |
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242 |
31
d1ebcc555037
nginx-0.0.1-2002-12-18-19:31:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
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|
243 #endif /* HAVE_KQUEUE */ |
0
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244 |
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245 #if (USE_KQUEUE) |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
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0
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246 |
0
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247 #define ngx_init_events ngx_kqueue_init |
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248 #define ngx_process_events ngx_kqueue_process_events |
26
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
23
diff
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249 #define ngx_add_event ngx_kqueue_add_event |
32
d45effe5854c
nginx-0.0.1-2002-12-19-10:08:55 import
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31
diff
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250 #define ngx_del_event ngx_kqueue_del_event |
50
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nginx-0.0.1-2003-01-23-21:47:54 import
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44
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251 #if 0 |
8
708f8bb772ec
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252 #define ngx_add_timer ngx_kqueue_add_timer |
50
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253 #else |
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254 #define ngx_add_timer ngx_event_add_timer |
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255 #endif |
1
d220029ac7f3
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parents:
0
diff
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256 #define ngx_event_recv ngx_event_recv_core |
d220029ac7f3
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0
diff
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257 |
0
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258 #else |
1
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259 |
0
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260 #define ngx_init_events (ngx_event_init[ngx_event_type]) |
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261 #define ngx_process_events ngx_event_actions.process |
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262 #define ngx_add_event ngx_event_actions.add |
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263 #define ngx_del_event ngx_event_actions.del |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
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57
diff
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|
264 |
50
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Igor Sysoev <igor@sysoev.ru>
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265 #if 0 |
8
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266 #define ngx_add_timer ngx_event_actions.timer |
50
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267 #else |
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268 #define ngx_add_timer ngx_event_add_timer |
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44
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269 #endif |
59
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|
270 |
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|
271 #if (HAVE_IOCP_EVENT) |
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272 #define ngx_event_recv ngx_event_wsarecv |
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273 #elif (HAVE_AIO_EVENT) |
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274 #define ngx_event_recv ngx_event_aio_read |
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275 #else |
1
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Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
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|
276 #define ngx_event_recv ngx_event_recv_core |
59
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|
277 #endif |
1
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Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
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|
278 |
0
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nginx-0.0.1-2002-08-06-20:39:45 import
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parents:
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279 #endif |
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|
280 |
50
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parents:
44
diff
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|
281 #define ngx_del_timer ngx_event_del_timer |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
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parents:
diff
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|
282 |
50
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nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
changeset
|
283 |
7
b5481d6fbbd4
nginx-0.0.1-2002-08-29-20:59:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
|
284 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
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|
285 extern ngx_event_t *ngx_read_events; |
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|
286 extern ngx_event_t *ngx_write_events; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
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|
287 extern ngx_connection_t *ngx_connections; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
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parents:
diff
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|
288 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
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parents:
diff
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|
289 #if !(USE_KQUEUE) |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
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diff
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|
290 extern ngx_event_actions_t ngx_event_actions; |
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parents:
diff
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|
291 extern ngx_event_type_e ngx_event_type; |
53
d1e42f1b8fd4
nginx-0.0.1-2003-01-27-00:08:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
50
diff
changeset
|
292 extern int ngx_event_flags; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
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parents:
diff
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|
293 #endif |
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diff
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|
294 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
295 |
79
eacfdd1c31b9
nginx-0.0.1-2003-04-22-19:02:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
77
diff
changeset
|
296 #if !(HAVE_EPOLL) |
eacfdd1c31b9
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diff
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|
297 #define ngx_edge_add_event(ev) NGX_ERROR |
eacfdd1c31b9
nginx-0.0.1-2003-04-22-19:02:58 import
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diff
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|
298 #endif |
eacfdd1c31b9
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parents:
77
diff
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|
299 |
eacfdd1c31b9
nginx-0.0.1-2003-04-22-19:02:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
77
diff
changeset
|
300 |
90
37530da31268
nginx-0.0.1-2003-05-16-19:27:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
301 #define NGX_EVENT_MODULE_TYPE 0x544E5645 /* "EVNT" */ |
37530da31268
nginx-0.0.1-2003-05-16-19:27:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
302 |
37530da31268
nginx-0.0.1-2003-05-16-19:27:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
303 #define NGX_EVENT_CONF 0x00200000 |
37530da31268
nginx-0.0.1-2003-05-16-19:27:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
304 |
37530da31268
nginx-0.0.1-2003-05-16-19:27:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
305 |
37530da31268
nginx-0.0.1-2003-05-16-19:27:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
87
diff
changeset
|
306 |
87
5f6d848dcbef
nginx-0.0.1-2003-05-13-20:02:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
307 void ngx_event_accept(ngx_event_t *ev); |
5f6d848dcbef
nginx-0.0.1-2003-05-13-20:02:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
308 |
5f6d848dcbef
nginx-0.0.1-2003-05-13-20:02:32 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
309 |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
changeset
|
310 ssize_t ngx_event_recv_core(ngx_connection_t *c, char *buf, size_t size); |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
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|
311 int ngx_event_close_connection(ngx_event_t *ev); |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
changeset
|
312 |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
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313 |
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nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
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314 void ngx_pre_thread(ngx_array_t *ls, ngx_pool_t *pool, ngx_log_t *log); |
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nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
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315 void ngx_worker(ngx_log_t *log); |
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nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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316 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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317 |
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nginx-0.0.1-2002-08-06-20:39:45 import
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318 #endif /* _NGX_EVENT_H_INCLUDED_ */ |