Mercurial > hg > nginx-quic
annotate src/event/ngx_event.h @ 99:a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 02 Jun 2003 15:24:30 +0000 |
parents | 70d2345a903f |
children | 7e86d028d8f0 |
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_core.h> |
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9 #define NGX_INVALID_INDEX 0x80000000 |
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12 #if 0 |
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13 typedef struct ngx_event_s ngx_event_t; |
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14 #endif |
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16 #if (HAVE_IOCP) |
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17 typedef struct { |
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18 WSAOVERLAPPED ovlp; |
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19 ngx_event_t *event; |
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20 int error; |
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21 } ngx_event_ovlp_t; |
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22 #endif |
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23 |
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25 struct ngx_event_s { |
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26 void *data; |
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27 void (*event_handler)(ngx_event_t *ev); |
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28 |
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29 #if 0 |
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30 int (*close_handler)(ngx_event_t *ev); |
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31 #endif |
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32 void *context; |
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33 char *action; |
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34 |
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35 unsigned int index; |
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36 |
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37 ngx_event_t *prev; /* queue in mutex(), aio_read(), aio_write() */ |
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38 ngx_event_t *next; /* */ |
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39 |
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40 #if 0 |
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41 int (*timer_handler)(ngx_event_t *ev); |
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42 #endif |
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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 oneshot:1; |
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60 |
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61 #if 0 |
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62 unsigned listening:1; |
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63 #endif |
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64 unsigned write:1; |
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65 |
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66 unsigned instance:1; /* used to detect stale events in kqueue, |
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67 rt signals and epoll */ |
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68 |
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69 unsigned active:1; |
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70 unsigned ready:1; |
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71 unsigned timedout:1; |
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72 unsigned blocked:1; |
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73 unsigned timer_set:1; |
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74 unsigned delayed:1; |
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75 |
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76 unsigned process:1; |
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77 unsigned read_discarded:1; |
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78 |
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79 unsigned ignore_econnreset:1; |
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80 unsigned unexpected_eof:1; |
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81 |
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82 unsigned deferred_accept:1; |
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83 |
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84 #if (HAVE_KQUEUE) |
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85 unsigned eof:1; |
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86 int error; |
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87 #endif |
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88 |
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89 #if (HAVE_LOWAT_EVENT) /* kqueue's NOTE_LOWAT */ |
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90 int lowat; |
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91 #endif |
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92 |
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93 |
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94 #if (HAVE_AIO) |
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95 |
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96 #if (HAVE_IOCP) |
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97 ngx_event_ovlp_t ovlp; |
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98 #else |
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99 struct aiocb aiocb; |
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100 #endif |
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101 |
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102 #endif |
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103 |
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104 |
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105 #if 0 |
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106 void *thr_ctx; /* event thread context if $(CC) doesn't |
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107 understand __thread declaration |
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108 and pthread_getspecific() is too costly */ |
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109 |
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110 #if (NGX_EVENT_T_PADDING) |
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111 int padding[NGX_EVENT_T_PADDING]; /* event should not cross |
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112 cache line in SMP */ |
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113 #endif |
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114 #endif |
0
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115 }; |
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116 |
86
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117 |
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118 #if 1 |
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119 typedef enum { |
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120 NGX_SELECT_EVENT_N = 0, |
0
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121 #if (HAVE_POLL) |
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122 NGX_POLL_EVENT_N, |
0
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123 #endif |
39
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124 #if (HAVE_DEVPOLL) |
60
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125 NGX_DEVPOLL_EVENT_N, |
39
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126 #endif |
0
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127 #if (HAVE_KQUEUE) |
60
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128 NGX_KQUEUE_EVENT_N, |
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129 #endif |
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130 #if (HAVE_AIO) |
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131 NGX_AIO_EVENT_N, |
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132 #endif |
59
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133 #if (HAVE_IOCP) |
60
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134 NGX_IOCP_EVENT_N, |
59
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135 #endif |
60
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136 NGX_DUMMY_EVENT_N /* avoid comma at end of enumerator list */ |
0
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137 } ngx_event_type_e ; |
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138 #endif |
91
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139 |
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140 |
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141 typedef struct { |
91
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142 int (*add)(ngx_event_t *ev, int event, u_int flags); |
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143 int (*del)(ngx_event_t *ev, int event, u_int flags); |
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144 |
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145 int (*enable)(ngx_event_t *ev, int event, u_int flags); |
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146 int (*disable)(ngx_event_t *ev, int event, u_int flags); |
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147 |
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148 int (*add_conn)(ngx_connection_t *c); |
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149 int (*del_conn)(ngx_connection_t *c); |
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150 |
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151 int (*process)(ngx_log_t *log); |
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152 int (*init)(ngx_log_t *log); |
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153 void (*done)(ngx_log_t *log); |
0
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154 } ngx_event_actions_t; |
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155 |
3
34a521b1a148
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156 |
79
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157 /* The event filter requires to read/write the whole data - |
53
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158 select, poll, /dev/poll, kqueue. */ |
92
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159 #define NGX_HAVE_LEVEL_EVENT 0x00000001 |
57
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160 |
79
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161 /* The event filter is deleted after a notification without an additional |
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162 syscall - select, poll, kqueue. */ |
92
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163 #define NGX_HAVE_ONESHOT_EVENT 0x00000002 |
57
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164 |
79
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165 /* The event filter notifies only the changes and an initial level - kqueue */ |
92
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166 #define NGX_HAVE_CLEAR_EVENT 0x00000004 |
57
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167 |
79
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168 /* The event filter has kqueue features - the eof flag, errno, |
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169 available data, etc */ |
92
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170 #define NGX_HAVE_KQUEUE_EVENT 0x00000008 |
60
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|
171 |
79
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172 /* The event filter supports low water mark - kqueue's NOTE_LOWAT. |
87
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173 kqueue in FreeBSD 4.1-4.2 has no NOTE_LOWAT so we need a separate flag */ |
67
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174 #define NGX_HAVE_LOWAT_EVENT 0x00000010 |
64
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|
175 |
79
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176 /* The event filter notifies only the changes (the edges) |
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177 but not an initial level - epoll */ |
67
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178 #define NGX_HAVE_EDGE_EVENT 0x00000020 |
60
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179 |
79
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180 /* No need to add or delete the event filters - rt signals */ |
67
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181 #define NGX_HAVE_SIGIO_EVENT 0x00000040 |
57
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|
182 |
79
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183 /* No need to add or delete the event filters - overlapped, aio_read, aioread */ |
67
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184 #define NGX_HAVE_AIO_EVENT 0x00000080 |
26
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23
diff
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|
185 |
67
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186 /* Need to add socket or handle only once - i/o completion port. |
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187 It also requires HAVE_AIO_EVENT and NGX_HAVE_AIO_EVENT to be set */ |
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188 #define NGX_HAVE_IOCP_EVENT 0x00000100 |
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|
189 |
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190 |
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191 #define NGX_USE_LEVEL_EVENT 0x00010000 |
75
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|
192 #define NGX_USE_AIO_EVENT 0x00020000 |
64
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|
193 |
59
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diff
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|
194 |
69
e43f406e4525
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diff
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195 /* Event filter is deleted before closing file. |
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196 Has no meaning for select, poll, epoll. |
54
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|
197 |
53
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198 kqueue: kqueue deletes event filters for file that closed |
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199 so we need only to delete filters in user-level batch array |
54
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diff
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|
200 /dev/poll: we need to flush POLLREMOVE event before closing file */ |
92
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|
201 |
53
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|
202 #define NGX_CLOSE_EVENT 1 |
0
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|
203 |
26
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23
diff
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|
204 |
0
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205 #if (HAVE_KQUEUE) |
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|
206 |
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|
207 #define NGX_READ_EVENT EVFILT_READ |
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208 #define NGX_WRITE_EVENT EVFILT_WRITE |
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209 |
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210 /* NGX_CLOSE_EVENT is the module flag and it would not go into a kernel |
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211 so we need to choose the value that would not interfere with any existent |
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212 and future flags. kqueue has such values - EV_FLAG1, EV_EOF and EV_ERROR. |
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213 They are reserved and cleared on a kernel entrance */ |
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214 #undef NGX_CLOSE_EVENT |
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215 #define NGX_CLOSE_EVENT EV_FLAG1 |
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216 |
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217 #define NGX_LEVEL_EVENT 0 |
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218 #define NGX_ONESHOT_EVENT EV_ONESHOT |
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219 #define NGX_CLEAR_EVENT EV_CLEAR |
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220 |
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221 #ifndef HAVE_CLEAR_EVENT |
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222 #define HAVE_CLEAR_EVENT 1 |
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223 #endif |
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224 |
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225 |
39
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226 #elif (HAVE_POLL) || (HAVE_DEVPOLL) |
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227 |
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228 #define NGX_READ_EVENT POLLIN |
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229 #define NGX_WRITE_EVENT POLLOUT |
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230 |
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231 #define NGX_LEVEL_EVENT 0 |
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232 #define NGX_ONESHOT_EVENT 1 |
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233 |
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234 #else |
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235 |
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236 #define NGX_READ_EVENT 0 |
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237 #define NGX_WRITE_EVENT 1 |
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238 |
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239 #define NGX_LEVEL_EVENT 0 |
0
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240 #define NGX_ONESHOT_EVENT 1 |
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241 |
31
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242 #endif /* HAVE_KQUEUE */ |
0
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243 |
92
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244 #ifndef NGX_CLEAR_EVENT |
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245 #define NGX_CLEAR_EVENT 0 /* dummy */ |
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246 #endif |
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247 |
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248 #if (USE_KQUEUE) |
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249 |
0
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250 #define ngx_init_events ngx_kqueue_init |
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251 #define ngx_process_events ngx_kqueue_process_events |
26
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252 #define ngx_add_event ngx_kqueue_add_event |
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253 #define ngx_del_event ngx_kqueue_del_event |
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254 #if 0 |
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255 #define ngx_add_timer ngx_kqueue_add_timer |
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256 #else |
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257 #define ngx_add_timer ngx_event_add_timer |
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258 #endif |
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259 #define ngx_event_recv ngx_event_recv_core |
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260 |
0
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261 #else |
1
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262 |
0
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263 #define ngx_init_events (ngx_event_init[ngx_event_type]) |
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264 #define ngx_process_events ngx_event_actions.process |
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265 #define ngx_add_event ngx_event_actions.add |
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266 #define ngx_del_event ngx_event_actions.del |
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267 #define ngx_add_conn ngx_event_actions.add_conn |
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268 #define ngx_del_conn ngx_event_actions.del_conn |
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269 |
50
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270 #if 0 |
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271 #define ngx_add_timer ngx_event_actions.timer |
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272 #else |
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273 #define ngx_add_timer ngx_event_add_timer |
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274 #endif |
59
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275 |
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276 #if (HAVE_IOCP_EVENT) |
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277 #define ngx_event_recv ngx_event_wsarecv |
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278 #elif (HAVE_AIO_EVENT) |
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279 #define ngx_event_recv ngx_event_aio_read |
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280 #else |
91
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281 #define ngx_event_recv ngx_io.recv |
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282 #define ngx_write_chain ngx_io.send_chain |
59
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283 #endif |
1
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284 |
0
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285 #endif |
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286 |
50
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287 #define ngx_del_timer ngx_event_del_timer |
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288 |
50
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289 |
7
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290 |
0
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291 extern ngx_event_t *ngx_read_events; |
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292 extern ngx_event_t *ngx_write_events; |
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293 extern ngx_connection_t *ngx_connections; |
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294 |
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295 #if !(USE_KQUEUE) |
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296 extern ngx_event_actions_t ngx_event_actions; |
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297 extern ngx_event_type_e ngx_event_type; |
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298 extern int ngx_event_flags; |
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299 #endif |
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300 |
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301 |
79
eacfdd1c31b9
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diff
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|
302 |
96
a23d010f356d
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diff
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303 #define NGX_EVENT_MODULE 0x544E5645 /* "EVNT" */ |
90
37530da31268
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diff
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|
304 |
37530da31268
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305 #define NGX_EVENT_CONF 0x00200000 |
91
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306 |
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|
307 |
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308 typedef struct { |
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309 int connections; |
92
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diff
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310 int timer_queues; |
93
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nginx-0.0.1-2003-05-21-17:28:21 import
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diff
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311 int use; |
91
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312 } ngx_event_conf_t; |
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313 |
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314 |
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315 typedef struct { |
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316 ngx_str_t *name; |
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317 |
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318 void *(*create_conf)(ngx_pool_t *p); |
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319 char *(*init_conf)(ngx_pool_t *p, void *conf); |
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320 |
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321 ngx_event_actions_t actions; |
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322 } ngx_event_module_t; |
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323 |
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324 |
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325 extern ngx_module_t ngx_events_module; |
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326 extern ngx_module_t ngx_event_module; |
91
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327 |
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328 |
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329 #define ngx_event_get_conf(module) \ |
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330 (*(ngx_get_conf(ngx_events_module))) [module.ctx_index]; |
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331 |
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332 |
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333 |
87
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334 void ngx_event_accept(ngx_event_t *ev); |
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335 |
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336 |
59
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337 ssize_t ngx_event_recv_core(ngx_connection_t *c, char *buf, size_t size); |
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338 int ngx_event_close_connection(ngx_event_t *ev); |
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339 |
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340 |
91
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341 int ngx_pre_thread(ngx_array_t *ls, ngx_pool_t *pool, ngx_log_t *log); |
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342 void ngx_worker(ngx_log_t *log); |
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343 |
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344 |
91
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345 #include <ngx_event_timer.h> |
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346 |
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347 |
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348 #endif /* _NGX_EVENT_H_INCLUDED_ */ |