Mercurial > hg > nginx
annotate src/event/ngx_event.h @ 66:4876cd4a36bb
nginx-0.0.1-2003-03-05-20:30:51 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 05 Mar 2003 17:30:51 +0000 |
parents | 4222c496acb3 |
children | 5a7d1aaa1618 |
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 |
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32 int (*event_handler)(ngx_event_t *ev); |
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33 int (*close_handler)(ngx_event_t *ev); |
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34 void *context; |
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35 char *action; |
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36 |
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37 unsigned int index; |
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38 |
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39 ngx_event_t *prev; /* queue in mutex(), aio_read(), aio_write() */ |
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40 ngx_event_t *next; /* */ |
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41 |
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42 int (*timer_handler)(ngx_event_t *ev); |
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43 ngx_event_t *timer_prev; |
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44 ngx_event_t *timer_next; |
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45 |
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46 ngx_msec_t timer_delta; |
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47 ngx_msec_t timer; |
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48 |
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49 ngx_log_t *log; |
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50 |
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51 int available; /* kqueue only: */ |
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52 /* accept: number of sockets that wait */ |
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53 /* to be accepted */ |
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54 /* read: bytes to read */ |
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55 /* write: available space in buffer */ |
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56 /* otherwise: */ |
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57 /* accept: 1 if accept many, 0 otherwise */ |
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58 |
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59 unsigned level:1; |
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60 unsigned oneshot:1; |
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61 |
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62 #if 0 |
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63 unsigned listening:1; |
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64 #endif |
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65 unsigned write:1; |
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66 |
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67 unsigned active:1; |
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68 unsigned ready:1; |
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69 unsigned timedout:1; |
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70 unsigned blocked:1; |
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71 unsigned timer_set:1; |
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72 |
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73 unsigned process:1; |
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74 unsigned read_discarded:1; |
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75 |
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76 unsigned unexpected_eof:1; |
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77 |
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78 #if (HAVE_DEFERRED_ACCEPT) |
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79 unsigned deferred_accept:1; |
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80 #endif |
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81 |
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82 #if (HAVE_KQUEUE) |
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83 unsigned eof:1; |
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84 int error; |
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85 #endif |
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86 |
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87 #if (HAVE_LOWAT_EVENT) /* kqueue's NOTE_LOWAT */ |
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88 int lowat; |
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89 #endif |
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90 |
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91 |
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92 #if (HAVE_AIO) |
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93 |
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94 #if (HAVE_IOCP) |
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95 ngx_event_ovlp_t ovlp; |
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96 #else |
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97 struct aiocb aiocb; |
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98 #endif |
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99 |
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100 #endif |
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101 |
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102 |
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103 #if 0 |
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104 void *thr_ctx; /* event thread context if $(CC) doesn't |
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105 understand __thread declaration |
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106 and pthread_getspecific() is too costly */ |
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107 |
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108 #if (NGX_EVENT_T_PADDING) |
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109 int padding[NGX_EVENT_T_PADDING]; /* event should not cross |
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110 cache line in SMP */ |
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111 #endif |
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112 #endif |
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113 }; |
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114 |
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115 typedef enum { |
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116 NGX_SELECT_EVENT_N = 0, |
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117 #if (HAVE_POLL) |
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118 NGX_POLL_EVENT_N, |
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119 #endif |
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120 #if (HAVE_DEVPOLL) |
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121 NGX_DEVPOLL_EVENT_N, |
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122 #endif |
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123 #if (HAVE_KQUEUE) |
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124 NGX_KQUEUE_EVENT_N, |
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125 #endif |
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126 #if (HAVE_AIO) |
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127 NGX_AIO_EVENT_N, |
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128 #endif |
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129 #if (HAVE_IOCP) |
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130 NGX_IOCP_EVENT_N, |
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131 #endif |
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132 NGX_DUMMY_EVENT_N /* avoid comma at end of enumerator list */ |
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133 } ngx_event_type_e ; |
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134 |
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135 typedef struct { |
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136 int (*add)(ngx_event_t *ev, int event, u_int flags); |
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137 int (*del)(ngx_event_t *ev, int event, u_int flags); |
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138 void (*timer)(ngx_event_t *ev, ngx_msec_t timer); |
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139 int (*process)(ngx_log_t *log); |
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140 int (*read)(ngx_event_t *ev, char *buf, size_t size); |
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141 /* |
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142 int (*write)(ngx_event_t *ev, char *buf, size_t size); |
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143 */ |
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144 } ngx_event_actions_t; |
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145 |
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146 |
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147 /* Event filter requires to read/write the whole data - |
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148 select, poll, /dev/poll, kqueue. */ |
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149 #define NGX_HAVE_LEVEL_EVENT 1 |
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150 |
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151 /* Event filter is deleted after notification - select, poll, kqueue. |
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152 Using /dev/poll, epoll it can be implemented with additional syscall */ |
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153 #define NGX_HAVE_ONESHOT_EVENT 2 |
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154 |
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155 /* Event filter notifies only changes and initial level - kqueue */ |
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156 #define NGX_HAVE_CLEAR_EVENT 4 |
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157 |
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158 /* Event filter has kqueue features - eof flag, errno, available data, etc */ |
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159 #define NGX_HAVE_KQUEUE_EVENT 8 |
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160 |
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161 /* Event filter supports low water mark - kqueue's NOTE_LOWAT, |
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162 early kqueue implementations have no NOTE_LOWAT so we need separate flag */ |
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163 #define NGX_HAVE_LOWAT_EVENT 16 |
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164 |
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165 /* Event filter notifies only changes (edges) but not initial level - epoll */ |
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166 #define NGX_HAVE_EDGE_EVENT 32 |
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167 |
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168 /* No need to add or delete event filters - rt signals */ |
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169 #define NGX_HAVE_SIGIO_EVENT 64 |
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170 |
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171 /* No need to add or delete event filters - overlapped, aio_read, aioread */ |
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172 #define NGX_HAVE_AIO_EVENT 128 |
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173 |
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174 /* Need to add socket or halde only once - i/o completion port. |
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175 It also requires to set HAVE_AIO_EVENT and NGX_HAVE_AIO_EVENT */ |
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176 #define NGX_HAVE_IOCP_EVENT 256 |
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177 |
59
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178 |
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179 /* Event filter is deleted before closing file. Has no meaning |
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180 for select, poll, epoll. |
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181 |
53
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182 kqueue: kqueue deletes event filters for file that closed |
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183 so we need only to delete filters in user-level batch array |
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184 /dev/poll: we need to flush POLLREMOVE event before closing file */ |
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185 #define NGX_CLOSE_EVENT 1 |
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186 |
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187 |
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188 #if (HAVE_KQUEUE) |
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189 |
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190 #define NGX_READ_EVENT EVFILT_READ |
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191 #define NGX_WRITE_EVENT EVFILT_WRITE |
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192 |
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193 #define NGX_LEVEL_EVENT 0 |
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194 #define NGX_ONESHOT_EVENT EV_ONESHOT |
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195 |
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196 #ifndef HAVE_CLEAR_EVENT |
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197 #define HAVE_CLEAR_EVENT 1 |
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198 #endif |
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199 |
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200 #if (HAVE_CLEAR_EVENT) |
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201 #define NGX_CLEAR_EVENT EV_CLEAR |
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202 #endif |
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203 |
39
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204 #elif (HAVE_POLL) || (HAVE_DEVPOLL) |
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205 |
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206 #define NGX_READ_EVENT POLLIN |
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207 #define NGX_WRITE_EVENT POLLOUT |
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208 |
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209 #define NGX_LEVEL_EVENT 0 |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
32
diff
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210 #define NGX_ONESHOT_EVENT 1 |
c14d7232b11f
nginx-0.0.1-2002-12-23-09:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
32
diff
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211 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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212 #else |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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213 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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214 #define NGX_READ_EVENT 0 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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215 #define NGX_WRITE_EVENT 1 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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216 |
6
669801705ab1
nginx-0.0.1-2002-08-26-19:18:19 import
Igor Sysoev <igor@sysoev.ru>
parents:
3
diff
changeset
|
217 #define NGX_LEVEL_EVENT 0 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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218 #define NGX_ONESHOT_EVENT 1 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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219 |
31
d1ebcc555037
nginx-0.0.1-2002-12-18-19:31:23 import
Igor Sysoev <igor@sysoev.ru>
parents:
26
diff
changeset
|
220 #endif /* HAVE_KQUEUE */ |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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221 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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222 #if (USE_KQUEUE) |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
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|
223 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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224 #define ngx_init_events ngx_kqueue_init |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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225 #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
changeset
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226 #define ngx_add_event ngx_kqueue_add_event |
32
d45effe5854c
nginx-0.0.1-2002-12-19-10:08:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
31
diff
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227 #define ngx_del_event ngx_kqueue_del_event |
50
b288069a8696
nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
changeset
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228 #if 0 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
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229 #define ngx_add_timer ngx_kqueue_add_timer |
50
b288069a8696
nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
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230 #else |
b288069a8696
nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
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231 #define ngx_add_timer ngx_event_add_timer |
b288069a8696
nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
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232 #endif |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
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233 #define ngx_event_recv ngx_event_recv_core |
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
|
234 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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235 #else |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
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|
236 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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237 #define ngx_init_events (ngx_event_init[ngx_event_type]) |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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238 #define ngx_process_events ngx_event_actions.process |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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239 #define ngx_add_event ngx_event_actions.add |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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240 #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>
parents:
57
diff
changeset
|
241 |
50
b288069a8696
nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
changeset
|
242 #if 0 |
8
708f8bb772ec
nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
7
diff
changeset
|
243 #define ngx_add_timer ngx_event_actions.timer |
50
b288069a8696
nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
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|
244 #else |
b288069a8696
nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
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245 #define ngx_add_timer ngx_event_add_timer |
b288069a8696
nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
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246 #endif |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
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|
247 |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
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248 #if (HAVE_IOCP_EVENT) |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
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249 #define ngx_event_recv ngx_event_wsarecv |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
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250 #elif (HAVE_AIO_EVENT) |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
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251 #define ngx_event_recv ngx_event_aio_read |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
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252 #else |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
|
253 #define ngx_event_recv ngx_event_recv_core |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
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|
254 #endif |
1
d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
0
diff
changeset
|
255 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
256 #endif |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
257 |
50
b288069a8696
nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
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|
258 #define ngx_del_timer ngx_event_del_timer |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
259 |
50
b288069a8696
nginx-0.0.1-2003-01-23-21:47:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
44
diff
changeset
|
260 |
7
b5481d6fbbd4
nginx-0.0.1-2002-08-29-20:59:54 import
Igor Sysoev <igor@sysoev.ru>
parents:
6
diff
changeset
|
261 |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
262 extern ngx_event_t *ngx_read_events; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
263 extern ngx_event_t *ngx_write_events; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
264 extern ngx_connection_t *ngx_connections; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
265 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
266 #if !(USE_KQUEUE) |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
267 extern ngx_event_actions_t ngx_event_actions; |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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|
268 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
|
269 extern int ngx_event_flags; |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
270 #endif |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
271 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
272 |
59
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
changeset
|
273 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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|
274 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
|
275 |
e8cdc2989cee
nginx-0.0.1-2003-02-06-20:21:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
57
diff
changeset
|
276 |
3
34a521b1a148
nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
1
diff
changeset
|
277 void ngx_pre_thread(ngx_array_t *ls, ngx_pool_t *pool, ngx_log_t *log); |
34a521b1a148
nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
1
diff
changeset
|
278 void ngx_worker(ngx_log_t *log); |
0
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
279 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
280 |
4eff17414a43
nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
281 #endif /* _NGX_EVENT_H_INCLUDED_ */ |