1 | /* |
1 | /* |
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2 | * libev event processing core, watcher management |
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3 | * |
2 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
3 | * All rights reserved. |
5 | * All rights reserved. |
4 | * |
6 | * |
5 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions are |
8 | * modification, are permitted provided that the following conditions are |
… | |
… | |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
30 | */ |
29 | #if EV_USE_CONFIG_H |
31 | |
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32 | #ifdef __cplusplus |
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33 | extern "C" { |
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34 | #endif |
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35 | |
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36 | #ifndef EV_STANDALONE |
30 | # include "config.h" |
37 | # include "config.h" |
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38 | |
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39 | # if HAVE_CLOCK_GETTIME |
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40 | # ifndef EV_USE_MONOTONIC |
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41 | # define EV_USE_MONOTONIC 1 |
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42 | # endif |
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43 | # ifndef EV_USE_REALTIME |
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44 | # define EV_USE_REALTIME 1 |
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45 | # endif |
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46 | # else |
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47 | # ifndef EV_USE_MONOTONIC |
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48 | # define EV_USE_MONOTONIC 0 |
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49 | # endif |
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50 | # ifndef EV_USE_REALTIME |
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51 | # define EV_USE_REALTIME 0 |
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52 | # endif |
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53 | # endif |
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54 | |
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55 | # if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) |
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56 | # define EV_USE_SELECT 1 |
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57 | # else |
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58 | # define EV_USE_SELECT 0 |
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59 | # endif |
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60 | |
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61 | # if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) |
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62 | # define EV_USE_POLL 1 |
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63 | # else |
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64 | # define EV_USE_POLL 0 |
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65 | # endif |
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66 | |
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67 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) |
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68 | # define EV_USE_EPOLL 1 |
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69 | # else |
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70 | # define EV_USE_EPOLL 0 |
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71 | # endif |
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72 | |
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73 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) |
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74 | # define EV_USE_KQUEUE 1 |
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75 | # else |
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76 | # define EV_USE_KQUEUE 0 |
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77 | # endif |
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78 | |
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79 | # if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT) |
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80 | # define EV_USE_PORT 1 |
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81 | # else |
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82 | # define EV_USE_PORT 0 |
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83 | # endif |
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84 | |
31 | #endif |
85 | #endif |
32 | |
86 | |
33 | #include <math.h> |
87 | #include <math.h> |
34 | #include <stdlib.h> |
88 | #include <stdlib.h> |
35 | #include <unistd.h> |
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36 | #include <fcntl.h> |
89 | #include <fcntl.h> |
37 | #include <signal.h> |
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38 | #include <stddef.h> |
90 | #include <stddef.h> |
39 | |
91 | |
40 | #include <stdio.h> |
92 | #include <stdio.h> |
41 | |
93 | |
42 | #include <assert.h> |
94 | #include <assert.h> |
43 | #include <errno.h> |
95 | #include <errno.h> |
44 | #include <sys/types.h> |
96 | #include <sys/types.h> |
45 | #include <sys/wait.h> |
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46 | #include <sys/time.h> |
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47 | #include <time.h> |
97 | #include <time.h> |
48 | |
98 | |
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99 | #include <signal.h> |
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100 | |
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101 | #ifndef _WIN32 |
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102 | # include <unistd.h> |
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103 | # include <sys/time.h> |
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104 | # include <sys/wait.h> |
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105 | #else |
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106 | # define WIN32_LEAN_AND_MEAN |
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107 | # include <windows.h> |
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108 | # ifndef EV_SELECT_IS_WINSOCKET |
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109 | # define EV_SELECT_IS_WINSOCKET 1 |
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110 | # endif |
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111 | #endif |
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112 | |
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113 | /**/ |
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114 | |
49 | #ifndef EV_USE_MONOTONIC |
115 | #ifndef EV_USE_MONOTONIC |
50 | # ifdef CLOCK_MONOTONIC |
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51 | # define EV_USE_MONOTONIC 1 |
116 | # define EV_USE_MONOTONIC 0 |
52 | # endif |
117 | #endif |
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118 | |
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119 | #ifndef EV_USE_REALTIME |
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120 | # define EV_USE_REALTIME 0 |
53 | #endif |
121 | #endif |
54 | |
122 | |
55 | #ifndef EV_USE_SELECT |
123 | #ifndef EV_USE_SELECT |
56 | # define EV_USE_SELECT 1 |
124 | # define EV_USE_SELECT 1 |
57 | #endif |
125 | #endif |
58 | |
126 | |
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127 | #ifndef EV_USE_POLL |
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128 | # ifdef _WIN32 |
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129 | # define EV_USE_POLL 0 |
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130 | # else |
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131 | # define EV_USE_POLL 1 |
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132 | # endif |
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133 | #endif |
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134 | |
59 | #ifndef EV_USE_EPOLL |
135 | #ifndef EV_USE_EPOLL |
60 | # define EV_USE_EPOLL 0 |
136 | # define EV_USE_EPOLL 0 |
61 | #endif |
137 | #endif |
62 | |
138 | |
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139 | #ifndef EV_USE_KQUEUE |
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140 | # define EV_USE_KQUEUE 0 |
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141 | #endif |
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142 | |
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143 | #ifndef EV_USE_PORT |
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144 | # define EV_USE_PORT 0 |
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145 | #endif |
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146 | |
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147 | /**/ |
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148 | |
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149 | /* darwin simply cannot be helped */ |
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150 | #ifdef __APPLE__ |
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151 | # undef EV_USE_POLL |
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152 | # undef EV_USE_KQUEUE |
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153 | #endif |
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154 | |
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155 | #ifndef CLOCK_MONOTONIC |
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156 | # undef EV_USE_MONOTONIC |
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157 | # define EV_USE_MONOTONIC 0 |
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158 | #endif |
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159 | |
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160 | #ifndef CLOCK_REALTIME |
63 | #ifndef EV_USE_REALTIME |
161 | # undef EV_USE_REALTIME |
64 | # define EV_USE_REALTIME 1 /* posix requirement, but might be slower */ |
162 | # define EV_USE_REALTIME 0 |
65 | #endif |
163 | #endif |
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164 | |
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165 | #if EV_SELECT_IS_WINSOCKET |
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166 | # include <winsock.h> |
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167 | #endif |
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168 | |
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169 | /**/ |
66 | |
170 | |
67 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
171 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
68 | #define MAX_BLOCKTIME 59.731 |
172 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
69 | #define PID_HASHSIZE 16 /* size of pid hahs table, must be power of two */ |
173 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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174 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
70 | |
175 | |
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176 | #ifdef EV_H |
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177 | # include EV_H |
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178 | #else |
71 | #include "ev.h" |
179 | # include "ev.h" |
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180 | #endif |
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181 | |
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182 | #if __GNUC__ >= 3 |
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183 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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184 | # define inline static inline |
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185 | #else |
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186 | # define expect(expr,value) (expr) |
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187 | # define inline static |
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188 | #endif |
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189 | |
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190 | #define expect_false(expr) expect ((expr) != 0, 0) |
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191 | #define expect_true(expr) expect ((expr) != 0, 1) |
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192 | |
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193 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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194 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
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195 | |
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196 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
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197 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
72 | |
198 | |
73 | typedef struct ev_watcher *W; |
199 | typedef struct ev_watcher *W; |
74 | typedef struct ev_watcher_list *WL; |
200 | typedef struct ev_watcher_list *WL; |
75 | typedef struct ev_watcher_time *WT; |
201 | typedef struct ev_watcher_time *WT; |
76 | |
202 | |
77 | static ev_tstamp now, diff; /* monotonic clock */ |
203 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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204 | |
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205 | #ifdef _WIN32 |
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206 | # include "ev_win32.c" |
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207 | #endif |
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208 | |
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209 | /*****************************************************************************/ |
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210 | |
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211 | static void (*syserr_cb)(const char *msg); |
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212 | |
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213 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
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214 | { |
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215 | syserr_cb = cb; |
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216 | } |
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217 | |
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218 | static void |
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219 | syserr (const char *msg) |
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220 | { |
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221 | if (!msg) |
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222 | msg = "(libev) system error"; |
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223 | |
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224 | if (syserr_cb) |
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225 | syserr_cb (msg); |
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226 | else |
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227 | { |
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228 | perror (msg); |
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229 | abort (); |
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230 | } |
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231 | } |
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232 | |
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233 | static void *(*alloc)(void *ptr, long size); |
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234 | |
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235 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
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236 | { |
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237 | alloc = cb; |
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238 | } |
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239 | |
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240 | static void * |
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241 | ev_realloc (void *ptr, long size) |
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242 | { |
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243 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
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244 | |
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245 | if (!ptr && size) |
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246 | { |
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247 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
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248 | abort (); |
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249 | } |
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250 | |
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251 | return ptr; |
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252 | } |
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253 | |
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254 | #define ev_malloc(size) ev_realloc (0, (size)) |
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255 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
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256 | |
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257 | /*****************************************************************************/ |
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258 | |
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259 | typedef struct |
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260 | { |
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261 | WL head; |
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262 | unsigned char events; |
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263 | unsigned char reify; |
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264 | #if EV_SELECT_IS_WINSOCKET |
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265 | SOCKET handle; |
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266 | #endif |
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267 | } ANFD; |
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268 | |
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269 | typedef struct |
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270 | { |
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271 | W w; |
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272 | int events; |
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273 | } ANPENDING; |
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274 | |
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275 | #if EV_MULTIPLICITY |
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276 | |
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277 | struct ev_loop |
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278 | { |
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279 | ev_tstamp ev_rt_now; |
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280 | #define ev_rt_now ((loop)->ev_rt_now) |
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281 | #define VAR(name,decl) decl; |
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282 | #include "ev_vars.h" |
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283 | #undef VAR |
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284 | }; |
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285 | #include "ev_wrap.h" |
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286 | |
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287 | static struct ev_loop default_loop_struct; |
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288 | struct ev_loop *ev_default_loop_ptr; |
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289 | |
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290 | #else |
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291 | |
78 | ev_tstamp ev_now; |
292 | ev_tstamp ev_rt_now; |
79 | int ev_method; |
293 | #define VAR(name,decl) static decl; |
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294 | #include "ev_vars.h" |
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295 | #undef VAR |
80 | |
296 | |
81 | static int have_monotonic; /* runtime */ |
297 | static int ev_default_loop_ptr; |
82 | |
298 | |
83 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
299 | #endif |
84 | static void (*method_modify)(int fd, int oev, int nev); |
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85 | static void (*method_poll)(ev_tstamp timeout); |
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86 | |
300 | |
87 | /*****************************************************************************/ |
301 | /*****************************************************************************/ |
88 | |
302 | |
89 | ev_tstamp |
303 | ev_tstamp |
90 | ev_time (void) |
304 | ev_time (void) |
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98 | gettimeofday (&tv, 0); |
312 | gettimeofday (&tv, 0); |
99 | return tv.tv_sec + tv.tv_usec * 1e-6; |
313 | return tv.tv_sec + tv.tv_usec * 1e-6; |
100 | #endif |
314 | #endif |
101 | } |
315 | } |
102 | |
316 | |
103 | static ev_tstamp |
317 | inline ev_tstamp |
104 | get_clock (void) |
318 | get_clock (void) |
105 | { |
319 | { |
106 | #if EV_USE_MONOTONIC |
320 | #if EV_USE_MONOTONIC |
107 | if (have_monotonic) |
321 | if (expect_true (have_monotonic)) |
108 | { |
322 | { |
109 | struct timespec ts; |
323 | struct timespec ts; |
110 | clock_gettime (CLOCK_MONOTONIC, &ts); |
324 | clock_gettime (CLOCK_MONOTONIC, &ts); |
111 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
325 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
112 | } |
326 | } |
113 | #endif |
327 | #endif |
114 | |
328 | |
115 | return ev_time (); |
329 | return ev_time (); |
116 | } |
330 | } |
117 | |
331 | |
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332 | #if EV_MULTIPLICITY |
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333 | ev_tstamp |
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334 | ev_now (EV_P) |
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335 | { |
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336 | return ev_rt_now; |
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337 | } |
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338 | #endif |
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339 | |
118 | #define array_nextsize(n) (((n) << 1) | 4 & ~3) |
340 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
119 | #define array_prevsize(n) (((n) >> 1) | 4 & ~3) |
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120 | |
341 | |
121 | #define array_needsize(base,cur,cnt,init) \ |
342 | #define array_needsize(type,base,cur,cnt,init) \ |
122 | if ((cnt) > cur) \ |
343 | if (expect_false ((cnt) > cur)) \ |
123 | { \ |
344 | { \ |
124 | int newcnt = cur; \ |
345 | int newcnt = cur; \ |
125 | do \ |
346 | do \ |
126 | { \ |
347 | { \ |
127 | newcnt = array_nextsize (newcnt); \ |
348 | newcnt = array_roundsize (type, newcnt << 1); \ |
128 | } \ |
349 | } \ |
129 | while ((cnt) > newcnt); \ |
350 | while ((cnt) > newcnt); \ |
130 | \ |
351 | \ |
131 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
352 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
132 | init (base + cur, newcnt - cur); \ |
353 | init (base + cur, newcnt - cur); \ |
133 | cur = newcnt; \ |
354 | cur = newcnt; \ |
134 | } |
355 | } |
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356 | |
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357 | #define array_slim(type,stem) \ |
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358 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
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359 | { \ |
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360 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
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361 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
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362 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
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363 | } |
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364 | |
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365 | #define array_free(stem, idx) \ |
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366 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
135 | |
367 | |
136 | /*****************************************************************************/ |
368 | /*****************************************************************************/ |
137 | |
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138 | typedef struct |
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139 | { |
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140 | struct ev_io *head; |
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141 | int events; |
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142 | } ANFD; |
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143 | |
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144 | static ANFD *anfds; |
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145 | static int anfdmax; |
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146 | |
369 | |
147 | static void |
370 | static void |
148 | anfds_init (ANFD *base, int count) |
371 | anfds_init (ANFD *base, int count) |
149 | { |
372 | { |
150 | while (count--) |
373 | while (count--) |
151 | { |
374 | { |
152 | base->head = 0; |
375 | base->head = 0; |
153 | base->events = EV_NONE; |
376 | base->events = EV_NONE; |
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377 | base->reify = 0; |
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378 | |
154 | ++base; |
379 | ++base; |
155 | } |
380 | } |
156 | } |
381 | } |
157 | |
382 | |
158 | typedef struct |
383 | void |
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384 | ev_feed_event (EV_P_ void *w, int revents) |
159 | { |
385 | { |
160 | W w; |
386 | W w_ = (W)w; |
161 | int events; |
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162 | } ANPENDING; |
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163 | |
387 | |
164 | static ANPENDING *pendings; |
388 | if (expect_false (w_->pending)) |
165 | static int pendingmax, pendingcnt; |
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166 | |
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167 | static void |
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168 | event (W w, int events) |
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169 | { |
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170 | if (w->active) |
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171 | { |
389 | { |
172 | w->pending = ++pendingcnt; |
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173 | array_needsize (pendings, pendingmax, pendingcnt, ); |
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174 | pendings [pendingcnt - 1].w = w; |
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175 | pendings [pendingcnt - 1].events = events; |
390 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
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391 | return; |
176 | } |
392 | } |
177 | } |
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178 | |
393 | |
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394 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
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395 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
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396 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
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397 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
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398 | } |
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399 | |
179 | static void |
400 | static void |
180 | queue_events (W *events, int eventcnt, int type) |
401 | queue_events (EV_P_ W *events, int eventcnt, int type) |
181 | { |
402 | { |
182 | int i; |
403 | int i; |
183 | |
404 | |
184 | for (i = 0; i < eventcnt; ++i) |
405 | for (i = 0; i < eventcnt; ++i) |
185 | event (events [i], type); |
406 | ev_feed_event (EV_A_ events [i], type); |
186 | } |
407 | } |
187 | |
408 | |
188 | static void |
409 | inline void |
189 | fd_event (int fd, int events) |
410 | fd_event (EV_P_ int fd, int revents) |
190 | { |
411 | { |
191 | ANFD *anfd = anfds + fd; |
412 | ANFD *anfd = anfds + fd; |
192 | struct ev_io *w; |
413 | struct ev_io *w; |
193 | |
414 | |
194 | for (w = anfd->head; w; w = w->next) |
415 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
195 | { |
416 | { |
196 | int ev = w->events & events; |
417 | int ev = w->events & revents; |
197 | |
418 | |
198 | if (ev) |
419 | if (ev) |
199 | event ((W)w, ev); |
420 | ev_feed_event (EV_A_ (W)w, ev); |
200 | } |
421 | } |
|
|
422 | } |
|
|
423 | |
|
|
424 | void |
|
|
425 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
426 | { |
|
|
427 | fd_event (EV_A_ fd, revents); |
201 | } |
428 | } |
202 | |
429 | |
203 | /*****************************************************************************/ |
430 | /*****************************************************************************/ |
204 | |
431 | |
205 | static int *fdchanges; |
432 | inline void |
206 | static int fdchangemax, fdchangecnt; |
433 | fd_reify (EV_P) |
207 | |
|
|
208 | static void |
|
|
209 | fd_reify (void) |
|
|
210 | { |
434 | { |
211 | int i; |
435 | int i; |
212 | |
436 | |
213 | for (i = 0; i < fdchangecnt; ++i) |
437 | for (i = 0; i < fdchangecnt; ++i) |
214 | { |
438 | { |
… | |
… | |
216 | ANFD *anfd = anfds + fd; |
440 | ANFD *anfd = anfds + fd; |
217 | struct ev_io *w; |
441 | struct ev_io *w; |
218 | |
442 | |
219 | int events = 0; |
443 | int events = 0; |
220 | |
444 | |
221 | for (w = anfd->head; w; w = w->next) |
445 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
222 | events |= w->events; |
446 | events |= w->events; |
223 | |
447 | |
224 | anfd->events &= ~EV_REIFY; |
448 | #if EV_SELECT_IS_WINSOCKET |
225 | |
449 | if (events) |
226 | if (anfd->events != events) |
|
|
227 | { |
450 | { |
228 | method_modify (fd, anfd->events, events); |
451 | unsigned long argp; |
229 | anfd->events = events; |
452 | anfd->handle = _get_osfhandle (fd); |
|
|
453 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
230 | } |
454 | } |
|
|
455 | #endif |
|
|
456 | |
|
|
457 | anfd->reify = 0; |
|
|
458 | |
|
|
459 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
460 | anfd->events = events; |
231 | } |
461 | } |
232 | |
462 | |
233 | fdchangecnt = 0; |
463 | fdchangecnt = 0; |
234 | } |
464 | } |
235 | |
465 | |
236 | static void |
466 | static void |
237 | fd_change (int fd) |
467 | fd_change (EV_P_ int fd) |
238 | { |
468 | { |
239 | if (anfds [fd].events & EV_REIFY || fdchangecnt < 0) |
469 | if (expect_false (anfds [fd].reify)) |
240 | return; |
470 | return; |
241 | |
471 | |
242 | anfds [fd].events |= EV_REIFY; |
472 | anfds [fd].reify = 1; |
243 | |
473 | |
244 | ++fdchangecnt; |
474 | ++fdchangecnt; |
245 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
475 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
246 | fdchanges [fdchangecnt - 1] = fd; |
476 | fdchanges [fdchangecnt - 1] = fd; |
247 | } |
477 | } |
248 | |
478 | |
|
|
479 | static void |
|
|
480 | fd_kill (EV_P_ int fd) |
|
|
481 | { |
|
|
482 | struct ev_io *w; |
|
|
483 | |
|
|
484 | while ((w = (struct ev_io *)anfds [fd].head)) |
|
|
485 | { |
|
|
486 | ev_io_stop (EV_A_ w); |
|
|
487 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
|
|
488 | } |
|
|
489 | } |
|
|
490 | |
|
|
491 | inline int |
|
|
492 | fd_valid (int fd) |
|
|
493 | { |
|
|
494 | #ifdef _WIN32 |
|
|
495 | return _get_osfhandle (fd) != -1; |
|
|
496 | #else |
|
|
497 | return fcntl (fd, F_GETFD) != -1; |
|
|
498 | #endif |
|
|
499 | } |
|
|
500 | |
249 | /* called on EBADF to verify fds */ |
501 | /* called on EBADF to verify fds */ |
250 | static void |
502 | static void |
251 | fd_recheck (void) |
503 | fd_ebadf (EV_P) |
252 | { |
504 | { |
253 | int fd; |
505 | int fd; |
254 | |
506 | |
255 | for (fd = 0; fd < anfdmax; ++fd) |
507 | for (fd = 0; fd < anfdmax; ++fd) |
256 | if (anfds [fd].events) |
508 | if (anfds [fd].events) |
257 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
509 | if (!fd_valid (fd) == -1 && errno == EBADF) |
258 | while (anfds [fd].head) |
510 | fd_kill (EV_A_ fd); |
|
|
511 | } |
|
|
512 | |
|
|
513 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
|
|
514 | static void |
|
|
515 | fd_enomem (EV_P) |
|
|
516 | { |
|
|
517 | int fd; |
|
|
518 | |
|
|
519 | for (fd = anfdmax; fd--; ) |
|
|
520 | if (anfds [fd].events) |
259 | { |
521 | { |
260 | event ((W)anfds [fd].head, EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT); |
522 | fd_kill (EV_A_ fd); |
261 | ev_io_stop (anfds [fd].head); |
523 | return; |
262 | } |
524 | } |
|
|
525 | } |
|
|
526 | |
|
|
527 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
|
|
528 | static void |
|
|
529 | fd_rearm_all (EV_P) |
|
|
530 | { |
|
|
531 | int fd; |
|
|
532 | |
|
|
533 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
534 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
535 | if (anfds [fd].events) |
|
|
536 | { |
|
|
537 | anfds [fd].events = 0; |
|
|
538 | fd_change (EV_A_ fd); |
|
|
539 | } |
263 | } |
540 | } |
264 | |
541 | |
265 | /*****************************************************************************/ |
542 | /*****************************************************************************/ |
266 | |
543 | |
267 | static struct ev_timer **timers; |
|
|
268 | static int timermax, timercnt; |
|
|
269 | |
|
|
270 | static struct ev_periodic **periodics; |
|
|
271 | static int periodicmax, periodiccnt; |
|
|
272 | |
|
|
273 | static void |
544 | static void |
274 | upheap (WT *timers, int k) |
545 | upheap (WT *heap, int k) |
275 | { |
546 | { |
276 | WT w = timers [k]; |
547 | WT w = heap [k]; |
277 | |
548 | |
278 | while (k && timers [k >> 1]->at > w->at) |
549 | while (k && heap [k >> 1]->at > w->at) |
279 | { |
550 | { |
280 | timers [k] = timers [k >> 1]; |
551 | heap [k] = heap [k >> 1]; |
281 | timers [k]->active = k + 1; |
552 | ((W)heap [k])->active = k + 1; |
282 | k >>= 1; |
553 | k >>= 1; |
283 | } |
554 | } |
284 | |
555 | |
285 | timers [k] = w; |
556 | heap [k] = w; |
286 | timers [k]->active = k + 1; |
557 | ((W)heap [k])->active = k + 1; |
287 | |
558 | |
288 | } |
559 | } |
289 | |
560 | |
290 | static void |
561 | static void |
291 | downheap (WT *timers, int N, int k) |
562 | downheap (WT *heap, int N, int k) |
292 | { |
563 | { |
293 | WT w = timers [k]; |
564 | WT w = heap [k]; |
294 | |
565 | |
295 | while (k < (N >> 1)) |
566 | while (k < (N >> 1)) |
296 | { |
567 | { |
297 | int j = k << 1; |
568 | int j = k << 1; |
298 | |
569 | |
299 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
570 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
300 | ++j; |
571 | ++j; |
301 | |
572 | |
302 | if (w->at <= timers [j]->at) |
573 | if (w->at <= heap [j]->at) |
303 | break; |
574 | break; |
304 | |
575 | |
305 | timers [k] = timers [j]; |
576 | heap [k] = heap [j]; |
306 | timers [k]->active = k + 1; |
577 | ((W)heap [k])->active = k + 1; |
307 | k = j; |
578 | k = j; |
308 | } |
579 | } |
309 | |
580 | |
310 | timers [k] = w; |
581 | heap [k] = w; |
311 | timers [k]->active = k + 1; |
582 | ((W)heap [k])->active = k + 1; |
|
|
583 | } |
|
|
584 | |
|
|
585 | inline void |
|
|
586 | adjustheap (WT *heap, int N, int k) |
|
|
587 | { |
|
|
588 | upheap (heap, k); |
|
|
589 | downheap (heap, N, k); |
312 | } |
590 | } |
313 | |
591 | |
314 | /*****************************************************************************/ |
592 | /*****************************************************************************/ |
315 | |
593 | |
316 | typedef struct |
594 | typedef struct |
317 | { |
595 | { |
318 | struct ev_signal *head; |
596 | WL head; |
319 | sig_atomic_t gotsig; |
597 | sig_atomic_t volatile gotsig; |
320 | } ANSIG; |
598 | } ANSIG; |
321 | |
599 | |
322 | static ANSIG *signals; |
600 | static ANSIG *signals; |
323 | static int signalmax; |
601 | static int signalmax; |
324 | |
602 | |
325 | static int sigpipe [2]; |
603 | static int sigpipe [2]; |
326 | static sig_atomic_t gotsig; |
604 | static sig_atomic_t volatile gotsig; |
327 | static struct ev_io sigev; |
605 | static struct ev_io sigev; |
328 | |
606 | |
329 | static void |
607 | static void |
330 | signals_init (ANSIG *base, int count) |
608 | signals_init (ANSIG *base, int count) |
331 | { |
609 | { |
332 | while (count--) |
610 | while (count--) |
333 | { |
611 | { |
334 | base->head = 0; |
612 | base->head = 0; |
335 | base->gotsig = 0; |
613 | base->gotsig = 0; |
|
|
614 | |
336 | ++base; |
615 | ++base; |
337 | } |
616 | } |
338 | } |
617 | } |
339 | |
618 | |
340 | static void |
619 | static void |
341 | sighandler (int signum) |
620 | sighandler (int signum) |
342 | { |
621 | { |
|
|
622 | #if _WIN32 |
|
|
623 | signal (signum, sighandler); |
|
|
624 | #endif |
|
|
625 | |
343 | signals [signum - 1].gotsig = 1; |
626 | signals [signum - 1].gotsig = 1; |
344 | |
627 | |
345 | if (!gotsig) |
628 | if (!gotsig) |
346 | { |
629 | { |
|
|
630 | int old_errno = errno; |
347 | gotsig = 1; |
631 | gotsig = 1; |
348 | write (sigpipe [1], &gotsig, 1); |
632 | write (sigpipe [1], &signum, 1); |
|
|
633 | errno = old_errno; |
349 | } |
634 | } |
350 | } |
635 | } |
351 | |
636 | |
|
|
637 | void |
|
|
638 | ev_feed_signal_event (EV_P_ int signum) |
|
|
639 | { |
|
|
640 | WL w; |
|
|
641 | |
|
|
642 | #if EV_MULTIPLICITY |
|
|
643 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
644 | #endif |
|
|
645 | |
|
|
646 | --signum; |
|
|
647 | |
|
|
648 | if (signum < 0 || signum >= signalmax) |
|
|
649 | return; |
|
|
650 | |
|
|
651 | signals [signum].gotsig = 0; |
|
|
652 | |
|
|
653 | for (w = signals [signum].head; w; w = w->next) |
|
|
654 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
655 | } |
|
|
656 | |
352 | static void |
657 | static void |
353 | sigcb (struct ev_io *iow, int revents) |
658 | sigcb (EV_P_ struct ev_io *iow, int revents) |
354 | { |
659 | { |
355 | struct ev_signal *w; |
|
|
356 | int sig; |
660 | int signum; |
357 | |
661 | |
|
|
662 | read (sigpipe [0], &revents, 1); |
358 | gotsig = 0; |
663 | gotsig = 0; |
359 | read (sigpipe [0], &revents, 1); |
|
|
360 | |
664 | |
361 | for (sig = signalmax; sig--; ) |
665 | for (signum = signalmax; signum--; ) |
362 | if (signals [sig].gotsig) |
666 | if (signals [signum].gotsig) |
363 | { |
667 | ev_feed_signal_event (EV_A_ signum + 1); |
364 | signals [sig].gotsig = 0; |
|
|
365 | |
|
|
366 | for (w = signals [sig].head; w; w = w->next) |
|
|
367 | event ((W)w, EV_SIGNAL); |
|
|
368 | } |
|
|
369 | } |
668 | } |
370 | |
669 | |
371 | static void |
670 | static void |
372 | siginit (void) |
671 | fd_intern (int fd) |
373 | { |
672 | { |
|
|
673 | #ifdef _WIN32 |
|
|
674 | int arg = 1; |
|
|
675 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
676 | #else |
374 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
677 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
375 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
376 | |
|
|
377 | /* rather than sort out wether we really need nb, set it */ |
|
|
378 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
678 | fcntl (fd, F_SETFL, O_NONBLOCK); |
379 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
679 | #endif |
|
|
680 | } |
|
|
681 | |
|
|
682 | static void |
|
|
683 | siginit (EV_P) |
|
|
684 | { |
|
|
685 | fd_intern (sigpipe [0]); |
|
|
686 | fd_intern (sigpipe [1]); |
380 | |
687 | |
381 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
688 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
382 | ev_io_start (&sigev); |
689 | ev_io_start (EV_A_ &sigev); |
|
|
690 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
383 | } |
691 | } |
384 | |
692 | |
385 | /*****************************************************************************/ |
693 | /*****************************************************************************/ |
386 | |
694 | |
387 | static struct ev_idle **idles; |
|
|
388 | static int idlemax, idlecnt; |
|
|
389 | |
|
|
390 | static struct ev_prepare **prepares; |
|
|
391 | static int preparemax, preparecnt; |
|
|
392 | |
|
|
393 | static struct ev_check **checks; |
|
|
394 | static int checkmax, checkcnt; |
|
|
395 | |
|
|
396 | /*****************************************************************************/ |
|
|
397 | |
|
|
398 | static struct ev_child *childs [PID_HASHSIZE]; |
695 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
696 | |
|
|
697 | #ifndef _WIN32 |
|
|
698 | |
399 | static struct ev_signal childev; |
699 | static struct ev_signal childev; |
400 | |
700 | |
401 | #ifndef WCONTINUED |
701 | #ifndef WCONTINUED |
402 | # define WCONTINUED 0 |
702 | # define WCONTINUED 0 |
403 | #endif |
703 | #endif |
404 | |
704 | |
405 | static void |
705 | static void |
406 | childcb (struct ev_signal *sw, int revents) |
706 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
407 | { |
707 | { |
408 | struct ev_child *w; |
708 | struct ev_child *w; |
|
|
709 | |
|
|
710 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
711 | if (w->pid == pid || !w->pid) |
|
|
712 | { |
|
|
713 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
714 | w->rpid = pid; |
|
|
715 | w->rstatus = status; |
|
|
716 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
717 | } |
|
|
718 | } |
|
|
719 | |
|
|
720 | static void |
|
|
721 | childcb (EV_P_ struct ev_signal *sw, int revents) |
|
|
722 | { |
409 | int pid, status; |
723 | int pid, status; |
410 | |
724 | |
411 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
725 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
412 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
726 | { |
413 | if (w->pid == pid || w->pid == -1) |
727 | /* make sure we are called again until all childs have been reaped */ |
414 | { |
728 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
415 | w->status = status; |
729 | |
416 | event ((W)w, EV_CHILD); |
730 | child_reap (EV_A_ sw, pid, pid, status); |
417 | } |
731 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
|
|
732 | } |
418 | } |
733 | } |
|
|
734 | |
|
|
735 | #endif |
419 | |
736 | |
420 | /*****************************************************************************/ |
737 | /*****************************************************************************/ |
421 | |
738 | |
|
|
739 | #if EV_USE_PORT |
|
|
740 | # include "ev_port.c" |
|
|
741 | #endif |
|
|
742 | #if EV_USE_KQUEUE |
|
|
743 | # include "ev_kqueue.c" |
|
|
744 | #endif |
422 | #if EV_USE_EPOLL |
745 | #if EV_USE_EPOLL |
423 | # include "ev_epoll.c" |
746 | # include "ev_epoll.c" |
424 | #endif |
747 | #endif |
|
|
748 | #if EV_USE_POLL |
|
|
749 | # include "ev_poll.c" |
|
|
750 | #endif |
425 | #if EV_USE_SELECT |
751 | #if EV_USE_SELECT |
426 | # include "ev_select.c" |
752 | # include "ev_select.c" |
427 | #endif |
753 | #endif |
428 | |
754 | |
429 | int |
755 | int |
… | |
… | |
436 | ev_version_minor (void) |
762 | ev_version_minor (void) |
437 | { |
763 | { |
438 | return EV_VERSION_MINOR; |
764 | return EV_VERSION_MINOR; |
439 | } |
765 | } |
440 | |
766 | |
441 | int ev_init (int flags) |
767 | /* return true if we are running with elevated privileges and should ignore env variables */ |
|
|
768 | static int |
|
|
769 | enable_secure (void) |
442 | { |
770 | { |
|
|
771 | #ifdef _WIN32 |
|
|
772 | return 0; |
|
|
773 | #else |
|
|
774 | return getuid () != geteuid () |
|
|
775 | || getgid () != getegid (); |
|
|
776 | #endif |
|
|
777 | } |
|
|
778 | |
|
|
779 | unsigned int |
|
|
780 | ev_method (EV_P) |
|
|
781 | { |
|
|
782 | return method; |
|
|
783 | } |
|
|
784 | |
|
|
785 | static void |
|
|
786 | loop_init (EV_P_ unsigned int flags) |
|
|
787 | { |
443 | if (!ev_method) |
788 | if (!method) |
444 | { |
789 | { |
445 | #if EV_USE_MONOTONIC |
790 | #if EV_USE_MONOTONIC |
446 | { |
791 | { |
447 | struct timespec ts; |
792 | struct timespec ts; |
448 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
793 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
449 | have_monotonic = 1; |
794 | have_monotonic = 1; |
450 | } |
795 | } |
451 | #endif |
796 | #endif |
452 | |
797 | |
453 | ev_now = ev_time (); |
798 | ev_rt_now = ev_time (); |
454 | now = get_clock (); |
799 | mn_now = get_clock (); |
|
|
800 | now_floor = mn_now; |
455 | diff = ev_now - now; |
801 | rtmn_diff = ev_rt_now - mn_now; |
456 | |
802 | |
457 | if (pipe (sigpipe)) |
803 | if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) |
458 | return 0; |
804 | flags = atoi (getenv ("LIBEV_FLAGS")); |
459 | |
805 | |
460 | ev_method = EVMETHOD_NONE; |
806 | if (!(flags & 0x0000ffff)) |
|
|
807 | flags |= 0x0000ffff; |
|
|
808 | |
|
|
809 | method = 0; |
|
|
810 | #if EV_USE_PORT |
|
|
811 | if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); |
|
|
812 | #endif |
|
|
813 | #if EV_USE_KQUEUE |
|
|
814 | if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); |
|
|
815 | #endif |
461 | #if EV_USE_EPOLL |
816 | #if EV_USE_EPOLL |
462 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
817 | if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); |
|
|
818 | #endif |
|
|
819 | #if EV_USE_POLL |
|
|
820 | if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); |
463 | #endif |
821 | #endif |
464 | #if EV_USE_SELECT |
822 | #if EV_USE_SELECT |
465 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
823 | if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); |
466 | #endif |
824 | #endif |
467 | |
825 | |
|
|
826 | ev_init (&sigev, sigcb); |
|
|
827 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
828 | } |
|
|
829 | } |
|
|
830 | |
|
|
831 | static void |
|
|
832 | loop_destroy (EV_P) |
|
|
833 | { |
|
|
834 | int i; |
|
|
835 | |
|
|
836 | #if EV_USE_PORT |
|
|
837 | if (method == EVMETHOD_PORT ) port_destroy (EV_A); |
|
|
838 | #endif |
|
|
839 | #if EV_USE_KQUEUE |
|
|
840 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
841 | #endif |
|
|
842 | #if EV_USE_EPOLL |
|
|
843 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
844 | #endif |
|
|
845 | #if EV_USE_POLL |
|
|
846 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
847 | #endif |
|
|
848 | #if EV_USE_SELECT |
|
|
849 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
850 | #endif |
|
|
851 | |
|
|
852 | for (i = NUMPRI; i--; ) |
|
|
853 | array_free (pending, [i]); |
|
|
854 | |
|
|
855 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
856 | array_free (fdchange, EMPTY0); |
|
|
857 | array_free (timer, EMPTY0); |
|
|
858 | #if EV_PERIODICS |
|
|
859 | array_free (periodic, EMPTY0); |
|
|
860 | #endif |
|
|
861 | array_free (idle, EMPTY0); |
|
|
862 | array_free (prepare, EMPTY0); |
|
|
863 | array_free (check, EMPTY0); |
|
|
864 | |
|
|
865 | method = 0; |
|
|
866 | } |
|
|
867 | |
|
|
868 | static void |
|
|
869 | loop_fork (EV_P) |
|
|
870 | { |
|
|
871 | #if EV_USE_PORT |
|
|
872 | if (method == EVMETHOD_PORT ) port_fork (EV_A); |
|
|
873 | #endif |
|
|
874 | #if EV_USE_KQUEUE |
|
|
875 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
876 | #endif |
|
|
877 | #if EV_USE_EPOLL |
|
|
878 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
|
|
879 | #endif |
|
|
880 | |
|
|
881 | if (ev_is_active (&sigev)) |
|
|
882 | { |
|
|
883 | /* default loop */ |
|
|
884 | |
|
|
885 | ev_ref (EV_A); |
|
|
886 | ev_io_stop (EV_A_ &sigev); |
|
|
887 | close (sigpipe [0]); |
|
|
888 | close (sigpipe [1]); |
|
|
889 | |
|
|
890 | while (pipe (sigpipe)) |
|
|
891 | syserr ("(libev) error creating pipe"); |
|
|
892 | |
|
|
893 | siginit (EV_A); |
|
|
894 | } |
|
|
895 | |
|
|
896 | postfork = 0; |
|
|
897 | } |
|
|
898 | |
|
|
899 | #if EV_MULTIPLICITY |
|
|
900 | struct ev_loop * |
|
|
901 | ev_loop_new (unsigned int flags) |
|
|
902 | { |
|
|
903 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
904 | |
|
|
905 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
906 | |
|
|
907 | loop_init (EV_A_ flags); |
|
|
908 | |
|
|
909 | if (ev_method (EV_A)) |
|
|
910 | return loop; |
|
|
911 | |
|
|
912 | return 0; |
|
|
913 | } |
|
|
914 | |
|
|
915 | void |
|
|
916 | ev_loop_destroy (EV_P) |
|
|
917 | { |
|
|
918 | loop_destroy (EV_A); |
|
|
919 | ev_free (loop); |
|
|
920 | } |
|
|
921 | |
|
|
922 | void |
|
|
923 | ev_loop_fork (EV_P) |
|
|
924 | { |
|
|
925 | postfork = 1; |
|
|
926 | } |
|
|
927 | |
|
|
928 | #endif |
|
|
929 | |
|
|
930 | #if EV_MULTIPLICITY |
|
|
931 | struct ev_loop * |
|
|
932 | ev_default_loop_init (unsigned int flags) |
|
|
933 | #else |
|
|
934 | int |
|
|
935 | ev_default_loop (unsigned int flags) |
|
|
936 | #endif |
|
|
937 | { |
|
|
938 | if (sigpipe [0] == sigpipe [1]) |
|
|
939 | if (pipe (sigpipe)) |
|
|
940 | return 0; |
|
|
941 | |
|
|
942 | if (!ev_default_loop_ptr) |
|
|
943 | { |
|
|
944 | #if EV_MULTIPLICITY |
|
|
945 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
946 | #else |
|
|
947 | ev_default_loop_ptr = 1; |
|
|
948 | #endif |
|
|
949 | |
|
|
950 | loop_init (EV_A_ flags); |
|
|
951 | |
468 | if (ev_method) |
952 | if (ev_method (EV_A)) |
469 | { |
953 | { |
470 | ev_watcher_init (&sigev, sigcb); |
|
|
471 | siginit (); |
954 | siginit (EV_A); |
472 | |
955 | |
|
|
956 | #ifndef _WIN32 |
473 | ev_signal_init (&childev, childcb, SIGCHLD); |
957 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
958 | ev_set_priority (&childev, EV_MAXPRI); |
474 | ev_signal_start (&childev); |
959 | ev_signal_start (EV_A_ &childev); |
|
|
960 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
961 | #endif |
475 | } |
962 | } |
|
|
963 | else |
|
|
964 | ev_default_loop_ptr = 0; |
476 | } |
965 | } |
477 | |
966 | |
478 | return ev_method; |
967 | return ev_default_loop_ptr; |
|
|
968 | } |
|
|
969 | |
|
|
970 | void |
|
|
971 | ev_default_destroy (void) |
|
|
972 | { |
|
|
973 | #if EV_MULTIPLICITY |
|
|
974 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
975 | #endif |
|
|
976 | |
|
|
977 | #ifndef _WIN32 |
|
|
978 | ev_ref (EV_A); /* child watcher */ |
|
|
979 | ev_signal_stop (EV_A_ &childev); |
|
|
980 | #endif |
|
|
981 | |
|
|
982 | ev_ref (EV_A); /* signal watcher */ |
|
|
983 | ev_io_stop (EV_A_ &sigev); |
|
|
984 | |
|
|
985 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
986 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
987 | |
|
|
988 | loop_destroy (EV_A); |
|
|
989 | } |
|
|
990 | |
|
|
991 | void |
|
|
992 | ev_default_fork (void) |
|
|
993 | { |
|
|
994 | #if EV_MULTIPLICITY |
|
|
995 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
996 | #endif |
|
|
997 | |
|
|
998 | if (method) |
|
|
999 | postfork = 1; |
479 | } |
1000 | } |
480 | |
1001 | |
481 | /*****************************************************************************/ |
1002 | /*****************************************************************************/ |
482 | |
1003 | |
483 | void |
|
|
484 | ev_prefork (void) |
|
|
485 | { |
|
|
486 | /* nop */ |
|
|
487 | } |
|
|
488 | |
|
|
489 | void |
|
|
490 | ev_postfork_parent (void) |
|
|
491 | { |
|
|
492 | /* nop */ |
|
|
493 | } |
|
|
494 | |
|
|
495 | void |
|
|
496 | ev_postfork_child (void) |
|
|
497 | { |
|
|
498 | #if EV_USE_EPOLL |
|
|
499 | if (ev_method == EVMETHOD_EPOLL) |
|
|
500 | epoll_postfork_child (); |
|
|
501 | #endif |
|
|
502 | |
|
|
503 | ev_io_stop (&sigev); |
|
|
504 | close (sigpipe [0]); |
|
|
505 | close (sigpipe [1]); |
|
|
506 | pipe (sigpipe); |
|
|
507 | siginit (); |
|
|
508 | } |
|
|
509 | |
|
|
510 | /*****************************************************************************/ |
|
|
511 | |
|
|
512 | static void |
1004 | static int |
|
|
1005 | any_pending (EV_P) |
|
|
1006 | { |
|
|
1007 | int pri; |
|
|
1008 | |
|
|
1009 | for (pri = NUMPRI; pri--; ) |
|
|
1010 | if (pendingcnt [pri]) |
|
|
1011 | return 1; |
|
|
1012 | |
|
|
1013 | return 0; |
|
|
1014 | } |
|
|
1015 | |
|
|
1016 | inline void |
513 | call_pending (void) |
1017 | call_pending (EV_P) |
514 | { |
1018 | { |
|
|
1019 | int pri; |
|
|
1020 | |
|
|
1021 | for (pri = NUMPRI; pri--; ) |
515 | while (pendingcnt) |
1022 | while (pendingcnt [pri]) |
516 | { |
1023 | { |
517 | ANPENDING *p = pendings + --pendingcnt; |
1024 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
518 | |
1025 | |
519 | if (p->w) |
1026 | if (expect_true (p->w)) |
520 | { |
1027 | { |
521 | p->w->pending = 0; |
1028 | p->w->pending = 0; |
522 | p->w->cb (p->w, p->events); |
1029 | EV_CB_INVOKE (p->w, p->events); |
523 | } |
1030 | } |
524 | } |
1031 | } |
525 | } |
1032 | } |
526 | |
1033 | |
527 | static void |
1034 | inline void |
528 | timers_reify (void) |
1035 | timers_reify (EV_P) |
529 | { |
1036 | { |
530 | while (timercnt && timers [0]->at <= now) |
1037 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
531 | { |
1038 | { |
532 | struct ev_timer *w = timers [0]; |
1039 | struct ev_timer *w = timers [0]; |
533 | |
1040 | |
534 | event ((W)w, EV_TIMEOUT); |
1041 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
535 | |
1042 | |
536 | /* first reschedule or stop timer */ |
1043 | /* first reschedule or stop timer */ |
537 | if (w->repeat) |
1044 | if (w->repeat) |
538 | { |
1045 | { |
|
|
1046 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1047 | |
539 | w->at = now + w->repeat; |
1048 | ((WT)w)->at += w->repeat; |
540 | assert (("timer timeout in the past, negative repeat?", w->at > now)); |
1049 | if (((WT)w)->at < mn_now) |
|
|
1050 | ((WT)w)->at = mn_now; |
|
|
1051 | |
541 | downheap ((WT *)timers, timercnt, 0); |
1052 | downheap ((WT *)timers, timercnt, 0); |
542 | } |
1053 | } |
543 | else |
1054 | else |
544 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1055 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
545 | } |
|
|
546 | } |
|
|
547 | |
1056 | |
548 | static void |
1057 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1058 | } |
|
|
1059 | } |
|
|
1060 | |
|
|
1061 | #if EV_PERIODICS |
|
|
1062 | inline void |
549 | periodics_reify (void) |
1063 | periodics_reify (EV_P) |
550 | { |
1064 | { |
551 | while (periodiccnt && periodics [0]->at <= ev_now) |
1065 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
552 | { |
1066 | { |
553 | struct ev_periodic *w = periodics [0]; |
1067 | struct ev_periodic *w = periodics [0]; |
554 | |
1068 | |
|
|
1069 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
|
|
1070 | |
555 | /* first reschedule or stop timer */ |
1071 | /* first reschedule or stop timer */ |
556 | if (w->interval) |
1072 | if (w->reschedule_cb) |
557 | { |
1073 | { |
|
|
1074 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1075 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1076 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1077 | } |
|
|
1078 | else if (w->interval) |
|
|
1079 | { |
558 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1080 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
559 | assert (("periodic timeout in the past, negative interval?", w->at > ev_now)); |
1081 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
560 | downheap ((WT *)periodics, periodiccnt, 0); |
1082 | downheap ((WT *)periodics, periodiccnt, 0); |
561 | } |
1083 | } |
562 | else |
1084 | else |
563 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1085 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
564 | |
1086 | |
565 | event ((W)w, EV_TIMEOUT); |
1087 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
566 | } |
1088 | } |
567 | } |
1089 | } |
568 | |
1090 | |
569 | static void |
1091 | static void |
570 | periodics_reschedule (ev_tstamp diff) |
1092 | periodics_reschedule (EV_P) |
571 | { |
1093 | { |
572 | int i; |
1094 | int i; |
573 | |
1095 | |
574 | /* adjust periodics after time jump */ |
1096 | /* adjust periodics after time jump */ |
575 | for (i = 0; i < periodiccnt; ++i) |
1097 | for (i = 0; i < periodiccnt; ++i) |
576 | { |
1098 | { |
577 | struct ev_periodic *w = periodics [i]; |
1099 | struct ev_periodic *w = periodics [i]; |
578 | |
1100 | |
|
|
1101 | if (w->reschedule_cb) |
|
|
1102 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
579 | if (w->interval) |
1103 | else if (w->interval) |
|
|
1104 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1105 | } |
|
|
1106 | |
|
|
1107 | /* now rebuild the heap */ |
|
|
1108 | for (i = periodiccnt >> 1; i--; ) |
|
|
1109 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1110 | } |
|
|
1111 | #endif |
|
|
1112 | |
|
|
1113 | inline int |
|
|
1114 | time_update_monotonic (EV_P) |
|
|
1115 | { |
|
|
1116 | mn_now = get_clock (); |
|
|
1117 | |
|
|
1118 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
1119 | { |
|
|
1120 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1121 | return 0; |
|
|
1122 | } |
|
|
1123 | else |
|
|
1124 | { |
|
|
1125 | now_floor = mn_now; |
|
|
1126 | ev_rt_now = ev_time (); |
|
|
1127 | return 1; |
|
|
1128 | } |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | inline void |
|
|
1132 | time_update (EV_P) |
|
|
1133 | { |
|
|
1134 | int i; |
|
|
1135 | |
|
|
1136 | #if EV_USE_MONOTONIC |
|
|
1137 | if (expect_true (have_monotonic)) |
|
|
1138 | { |
|
|
1139 | if (time_update_monotonic (EV_A)) |
580 | { |
1140 | { |
581 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1141 | ev_tstamp odiff = rtmn_diff; |
582 | |
1142 | |
583 | if (fabs (diff) >= 1e-4) |
1143 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
584 | { |
1144 | { |
585 | ev_periodic_stop (w); |
1145 | rtmn_diff = ev_rt_now - mn_now; |
586 | ev_periodic_start (w); |
|
|
587 | |
1146 | |
588 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
1147 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
|
|
1148 | return; /* all is well */ |
|
|
1149 | |
|
|
1150 | ev_rt_now = ev_time (); |
|
|
1151 | mn_now = get_clock (); |
|
|
1152 | now_floor = mn_now; |
589 | } |
1153 | } |
|
|
1154 | |
|
|
1155 | # if EV_PERIODICS |
|
|
1156 | periodics_reschedule (EV_A); |
|
|
1157 | # endif |
|
|
1158 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1159 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
590 | } |
1160 | } |
591 | } |
1161 | } |
592 | } |
1162 | else |
593 | |
1163 | #endif |
594 | static void |
1164 | { |
595 | time_update (void) |
|
|
596 | { |
|
|
597 | int i; |
|
|
598 | |
|
|
599 | ev_now = ev_time (); |
1165 | ev_rt_now = ev_time (); |
600 | |
1166 | |
601 | if (have_monotonic) |
1167 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
602 | { |
|
|
603 | ev_tstamp odiff = diff; |
|
|
604 | |
|
|
605 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
606 | { |
1168 | { |
607 | now = get_clock (); |
1169 | #if EV_PERIODICS |
608 | diff = ev_now - now; |
|
|
609 | |
|
|
610 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
|
|
611 | return; /* all is well */ |
|
|
612 | |
|
|
613 | ev_now = ev_time (); |
|
|
614 | } |
|
|
615 | |
|
|
616 | periodics_reschedule (diff - odiff); |
|
|
617 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
618 | } |
|
|
619 | else |
|
|
620 | { |
|
|
621 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
|
|
622 | { |
|
|
623 | periodics_reschedule (ev_now - now); |
1170 | periodics_reschedule (EV_A); |
|
|
1171 | #endif |
624 | |
1172 | |
625 | /* adjust timers. this is easy, as the offset is the same for all */ |
1173 | /* adjust timers. this is easy, as the offset is the same for all */ |
626 | for (i = 0; i < timercnt; ++i) |
1174 | for (i = 0; i < timercnt; ++i) |
627 | timers [i]->at += diff; |
1175 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
628 | } |
1176 | } |
629 | |
1177 | |
630 | now = ev_now; |
1178 | mn_now = ev_rt_now; |
631 | } |
1179 | } |
632 | } |
1180 | } |
633 | |
1181 | |
634 | int ev_loop_done; |
1182 | void |
|
|
1183 | ev_ref (EV_P) |
|
|
1184 | { |
|
|
1185 | ++activecnt; |
|
|
1186 | } |
635 | |
1187 | |
|
|
1188 | void |
|
|
1189 | ev_unref (EV_P) |
|
|
1190 | { |
|
|
1191 | --activecnt; |
|
|
1192 | } |
|
|
1193 | |
|
|
1194 | static int loop_done; |
|
|
1195 | |
|
|
1196 | void |
636 | void ev_loop (int flags) |
1197 | ev_loop (EV_P_ int flags) |
637 | { |
1198 | { |
638 | double block; |
1199 | double block; |
639 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1200 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
640 | |
1201 | |
641 | do |
1202 | while (activecnt) |
642 | { |
1203 | { |
643 | /* queue check watchers (and execute them) */ |
1204 | /* queue check watchers (and execute them) */ |
644 | if (preparecnt) |
1205 | if (expect_false (preparecnt)) |
645 | { |
1206 | { |
646 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1207 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
647 | call_pending (); |
1208 | call_pending (EV_A); |
648 | } |
1209 | } |
649 | |
1210 | |
|
|
1211 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1212 | if (expect_false (postfork)) |
|
|
1213 | loop_fork (EV_A); |
|
|
1214 | |
650 | /* update fd-related kernel structures */ |
1215 | /* update fd-related kernel structures */ |
651 | fd_reify (); |
1216 | fd_reify (EV_A); |
652 | |
1217 | |
653 | /* calculate blocking time */ |
1218 | /* calculate blocking time */ |
654 | |
1219 | |
655 | /* we only need this for !monotonic clockor timers, but as we basically |
1220 | /* we only need this for !monotonic clock or timers, but as we basically |
656 | always have timers, we just calculate it always */ |
1221 | always have timers, we just calculate it always */ |
|
|
1222 | #if EV_USE_MONOTONIC |
|
|
1223 | if (expect_true (have_monotonic)) |
|
|
1224 | time_update_monotonic (EV_A); |
|
|
1225 | else |
|
|
1226 | #endif |
|
|
1227 | { |
657 | ev_now = ev_time (); |
1228 | ev_rt_now = ev_time (); |
|
|
1229 | mn_now = ev_rt_now; |
|
|
1230 | } |
658 | |
1231 | |
659 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1232 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
660 | block = 0.; |
1233 | block = 0.; |
661 | else |
1234 | else |
662 | { |
1235 | { |
663 | block = MAX_BLOCKTIME; |
1236 | block = MAX_BLOCKTIME; |
664 | |
1237 | |
665 | if (timercnt) |
1238 | if (timercnt) |
666 | { |
1239 | { |
667 | ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; |
1240 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
668 | if (block > to) block = to; |
1241 | if (block > to) block = to; |
669 | } |
1242 | } |
670 | |
1243 | |
|
|
1244 | #if EV_PERIODICS |
671 | if (periodiccnt) |
1245 | if (periodiccnt) |
672 | { |
1246 | { |
673 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1247 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
674 | if (block > to) block = to; |
1248 | if (block > to) block = to; |
675 | } |
1249 | } |
|
|
1250 | #endif |
676 | |
1251 | |
677 | if (block < 0.) block = 0.; |
1252 | if (expect_false (block < 0.)) block = 0.; |
678 | } |
1253 | } |
679 | |
1254 | |
680 | method_poll (block); |
1255 | method_poll (EV_A_ block); |
681 | |
1256 | |
682 | /* update ev_now, do magic */ |
1257 | /* update ev_rt_now, do magic */ |
683 | time_update (); |
1258 | time_update (EV_A); |
684 | |
1259 | |
685 | /* queue pending timers and reschedule them */ |
1260 | /* queue pending timers and reschedule them */ |
686 | timers_reify (); /* relative timers called last */ |
1261 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1262 | #if EV_PERIODICS |
687 | periodics_reify (); /* absolute timers called first */ |
1263 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1264 | #endif |
688 | |
1265 | |
689 | /* queue idle watchers unless io or timers are pending */ |
1266 | /* queue idle watchers unless io or timers are pending */ |
690 | if (!pendingcnt) |
1267 | if (idlecnt && !any_pending (EV_A)) |
691 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1268 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
692 | |
1269 | |
693 | /* queue check watchers, to be executed first */ |
1270 | /* queue check watchers, to be executed first */ |
694 | if (checkcnt) |
1271 | if (expect_false (checkcnt)) |
695 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1272 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
696 | |
1273 | |
697 | call_pending (); |
1274 | call_pending (EV_A); |
698 | } |
|
|
699 | while (!ev_loop_done); |
|
|
700 | |
1275 | |
|
|
1276 | if (expect_false (loop_done)) |
|
|
1277 | break; |
|
|
1278 | } |
|
|
1279 | |
701 | if (ev_loop_done != 2) |
1280 | if (loop_done != 2) |
702 | ev_loop_done = 0; |
1281 | loop_done = 0; |
|
|
1282 | } |
|
|
1283 | |
|
|
1284 | void |
|
|
1285 | ev_unloop (EV_P_ int how) |
|
|
1286 | { |
|
|
1287 | loop_done = how; |
703 | } |
1288 | } |
704 | |
1289 | |
705 | /*****************************************************************************/ |
1290 | /*****************************************************************************/ |
706 | |
1291 | |
707 | static void |
1292 | inline void |
708 | wlist_add (WL *head, WL elem) |
1293 | wlist_add (WL *head, WL elem) |
709 | { |
1294 | { |
710 | elem->next = *head; |
1295 | elem->next = *head; |
711 | *head = elem; |
1296 | *head = elem; |
712 | } |
1297 | } |
713 | |
1298 | |
714 | static void |
1299 | inline void |
715 | wlist_del (WL *head, WL elem) |
1300 | wlist_del (WL *head, WL elem) |
716 | { |
1301 | { |
717 | while (*head) |
1302 | while (*head) |
718 | { |
1303 | { |
719 | if (*head == elem) |
1304 | if (*head == elem) |
… | |
… | |
724 | |
1309 | |
725 | head = &(*head)->next; |
1310 | head = &(*head)->next; |
726 | } |
1311 | } |
727 | } |
1312 | } |
728 | |
1313 | |
729 | static void |
1314 | inline void |
730 | ev_clear (W w) |
1315 | ev_clear_pending (EV_P_ W w) |
731 | { |
1316 | { |
732 | if (w->pending) |
1317 | if (w->pending) |
733 | { |
1318 | { |
734 | pendings [w->pending - 1].w = 0; |
1319 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
735 | w->pending = 0; |
1320 | w->pending = 0; |
736 | } |
1321 | } |
737 | } |
1322 | } |
738 | |
1323 | |
739 | static void |
1324 | inline void |
740 | ev_start (W w, int active) |
1325 | ev_start (EV_P_ W w, int active) |
741 | { |
1326 | { |
|
|
1327 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
|
|
1328 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1329 | |
742 | w->active = active; |
1330 | w->active = active; |
|
|
1331 | ev_ref (EV_A); |
743 | } |
1332 | } |
744 | |
1333 | |
745 | static void |
1334 | inline void |
746 | ev_stop (W w) |
1335 | ev_stop (EV_P_ W w) |
747 | { |
1336 | { |
|
|
1337 | ev_unref (EV_A); |
748 | w->active = 0; |
1338 | w->active = 0; |
749 | } |
1339 | } |
750 | |
1340 | |
751 | /*****************************************************************************/ |
1341 | /*****************************************************************************/ |
752 | |
1342 | |
753 | void |
1343 | void |
754 | ev_io_start (struct ev_io *w) |
1344 | ev_io_start (EV_P_ struct ev_io *w) |
755 | { |
1345 | { |
756 | if (ev_is_active (w)) |
|
|
757 | return; |
|
|
758 | |
|
|
759 | int fd = w->fd; |
1346 | int fd = w->fd; |
760 | |
1347 | |
|
|
1348 | if (expect_false (ev_is_active (w))) |
|
|
1349 | return; |
|
|
1350 | |
|
|
1351 | assert (("ev_io_start called with negative fd", fd >= 0)); |
|
|
1352 | |
761 | ev_start ((W)w, 1); |
1353 | ev_start (EV_A_ (W)w, 1); |
762 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1354 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
763 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1355 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
764 | |
1356 | |
765 | fd_change (fd); |
1357 | fd_change (EV_A_ fd); |
766 | } |
1358 | } |
767 | |
1359 | |
768 | void |
1360 | void |
769 | ev_io_stop (struct ev_io *w) |
1361 | ev_io_stop (EV_P_ struct ev_io *w) |
770 | { |
1362 | { |
771 | ev_clear ((W)w); |
1363 | ev_clear_pending (EV_A_ (W)w); |
772 | if (!ev_is_active (w)) |
1364 | if (expect_false (!ev_is_active (w))) |
773 | return; |
1365 | return; |
|
|
1366 | |
|
|
1367 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
774 | |
1368 | |
775 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1369 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
776 | ev_stop ((W)w); |
1370 | ev_stop (EV_A_ (W)w); |
777 | |
1371 | |
778 | fd_change (w->fd); |
1372 | fd_change (EV_A_ w->fd); |
779 | } |
1373 | } |
780 | |
1374 | |
781 | void |
1375 | void |
782 | ev_timer_start (struct ev_timer *w) |
1376 | ev_timer_start (EV_P_ struct ev_timer *w) |
783 | { |
1377 | { |
784 | if (ev_is_active (w)) |
1378 | if (expect_false (ev_is_active (w))) |
785 | return; |
1379 | return; |
786 | |
1380 | |
787 | w->at += now; |
1381 | ((WT)w)->at += mn_now; |
788 | |
1382 | |
789 | assert (("timer repeat value less than zero not allowed", w->repeat >= 0.)); |
1383 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
790 | |
1384 | |
791 | ev_start ((W)w, ++timercnt); |
1385 | ev_start (EV_A_ (W)w, ++timercnt); |
792 | array_needsize (timers, timermax, timercnt, ); |
1386 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
793 | timers [timercnt - 1] = w; |
1387 | timers [timercnt - 1] = w; |
794 | upheap ((WT *)timers, timercnt - 1); |
1388 | upheap ((WT *)timers, timercnt - 1); |
795 | } |
|
|
796 | |
1389 | |
|
|
1390 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1391 | } |
|
|
1392 | |
797 | void |
1393 | void |
798 | ev_timer_stop (struct ev_timer *w) |
1394 | ev_timer_stop (EV_P_ struct ev_timer *w) |
799 | { |
1395 | { |
800 | ev_clear ((W)w); |
1396 | ev_clear_pending (EV_A_ (W)w); |
801 | if (!ev_is_active (w)) |
1397 | if (expect_false (!ev_is_active (w))) |
802 | return; |
1398 | return; |
803 | |
1399 | |
|
|
1400 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1401 | |
804 | if (w->active < timercnt--) |
1402 | if (expect_true (((W)w)->active < timercnt--)) |
805 | { |
1403 | { |
806 | timers [w->active - 1] = timers [timercnt]; |
1404 | timers [((W)w)->active - 1] = timers [timercnt]; |
807 | downheap ((WT *)timers, timercnt, w->active - 1); |
1405 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
808 | } |
1406 | } |
809 | |
1407 | |
810 | w->at = w->repeat; |
1408 | ((WT)w)->at -= mn_now; |
811 | |
1409 | |
812 | ev_stop ((W)w); |
1410 | ev_stop (EV_A_ (W)w); |
813 | } |
1411 | } |
814 | |
1412 | |
815 | void |
1413 | void |
816 | ev_timer_again (struct ev_timer *w) |
1414 | ev_timer_again (EV_P_ struct ev_timer *w) |
817 | { |
1415 | { |
818 | if (ev_is_active (w)) |
1416 | if (ev_is_active (w)) |
819 | { |
1417 | { |
820 | if (w->repeat) |
1418 | if (w->repeat) |
821 | { |
1419 | { |
822 | w->at = now + w->repeat; |
1420 | ((WT)w)->at = mn_now + w->repeat; |
823 | downheap ((WT *)timers, timercnt, w->active - 1); |
1421 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
824 | } |
1422 | } |
825 | else |
1423 | else |
826 | ev_timer_stop (w); |
1424 | ev_timer_stop (EV_A_ w); |
827 | } |
1425 | } |
828 | else if (w->repeat) |
1426 | else if (w->repeat) |
|
|
1427 | { |
|
|
1428 | w->at = w->repeat; |
829 | ev_timer_start (w); |
1429 | ev_timer_start (EV_A_ w); |
|
|
1430 | } |
830 | } |
1431 | } |
831 | |
1432 | |
|
|
1433 | #if EV_PERIODICS |
832 | void |
1434 | void |
833 | ev_periodic_start (struct ev_periodic *w) |
1435 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
834 | { |
1436 | { |
835 | if (ev_is_active (w)) |
1437 | if (expect_false (ev_is_active (w))) |
836 | return; |
1438 | return; |
837 | |
1439 | |
838 | assert (("periodic interval value less than zero not allowed", w->interval >= 0.)); |
1440 | if (w->reschedule_cb) |
839 | |
1441 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1442 | else if (w->interval) |
|
|
1443 | { |
|
|
1444 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
840 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1445 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
841 | if (w->interval) |
|
|
842 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1446 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1447 | } |
843 | |
1448 | |
844 | ev_start ((W)w, ++periodiccnt); |
1449 | ev_start (EV_A_ (W)w, ++periodiccnt); |
845 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1450 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
846 | periodics [periodiccnt - 1] = w; |
1451 | periodics [periodiccnt - 1] = w; |
847 | upheap ((WT *)periodics, periodiccnt - 1); |
1452 | upheap ((WT *)periodics, periodiccnt - 1); |
848 | } |
|
|
849 | |
1453 | |
|
|
1454 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1455 | } |
|
|
1456 | |
850 | void |
1457 | void |
851 | ev_periodic_stop (struct ev_periodic *w) |
1458 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
852 | { |
1459 | { |
853 | ev_clear ((W)w); |
1460 | ev_clear_pending (EV_A_ (W)w); |
854 | if (!ev_is_active (w)) |
1461 | if (expect_false (!ev_is_active (w))) |
855 | return; |
1462 | return; |
856 | |
1463 | |
|
|
1464 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1465 | |
857 | if (w->active < periodiccnt--) |
1466 | if (expect_true (((W)w)->active < periodiccnt--)) |
858 | { |
1467 | { |
859 | periodics [w->active - 1] = periodics [periodiccnt]; |
1468 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
860 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1469 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
861 | } |
1470 | } |
862 | |
1471 | |
863 | ev_stop ((W)w); |
1472 | ev_stop (EV_A_ (W)w); |
864 | } |
1473 | } |
865 | |
1474 | |
866 | void |
1475 | void |
|
|
1476 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1477 | { |
|
|
1478 | /* TODO: use adjustheap and recalculation */ |
|
|
1479 | ev_periodic_stop (EV_A_ w); |
|
|
1480 | ev_periodic_start (EV_A_ w); |
|
|
1481 | } |
|
|
1482 | #endif |
|
|
1483 | |
|
|
1484 | void |
|
|
1485 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1486 | { |
|
|
1487 | if (expect_false (ev_is_active (w))) |
|
|
1488 | return; |
|
|
1489 | |
|
|
1490 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1491 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1492 | idles [idlecnt - 1] = w; |
|
|
1493 | } |
|
|
1494 | |
|
|
1495 | void |
|
|
1496 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1497 | { |
|
|
1498 | ev_clear_pending (EV_A_ (W)w); |
|
|
1499 | if (expect_false (!ev_is_active (w))) |
|
|
1500 | return; |
|
|
1501 | |
|
|
1502 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1503 | ev_stop (EV_A_ (W)w); |
|
|
1504 | } |
|
|
1505 | |
|
|
1506 | void |
|
|
1507 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1508 | { |
|
|
1509 | if (expect_false (ev_is_active (w))) |
|
|
1510 | return; |
|
|
1511 | |
|
|
1512 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1513 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1514 | prepares [preparecnt - 1] = w; |
|
|
1515 | } |
|
|
1516 | |
|
|
1517 | void |
|
|
1518 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1519 | { |
|
|
1520 | ev_clear_pending (EV_A_ (W)w); |
|
|
1521 | if (expect_false (!ev_is_active (w))) |
|
|
1522 | return; |
|
|
1523 | |
|
|
1524 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1525 | ev_stop (EV_A_ (W)w); |
|
|
1526 | } |
|
|
1527 | |
|
|
1528 | void |
|
|
1529 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1530 | { |
|
|
1531 | if (expect_false (ev_is_active (w))) |
|
|
1532 | return; |
|
|
1533 | |
|
|
1534 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1535 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1536 | checks [checkcnt - 1] = w; |
|
|
1537 | } |
|
|
1538 | |
|
|
1539 | void |
|
|
1540 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1541 | { |
|
|
1542 | ev_clear_pending (EV_A_ (W)w); |
|
|
1543 | if (expect_false (!ev_is_active (w))) |
|
|
1544 | return; |
|
|
1545 | |
|
|
1546 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1547 | ev_stop (EV_A_ (W)w); |
|
|
1548 | } |
|
|
1549 | |
|
|
1550 | #ifndef SA_RESTART |
|
|
1551 | # define SA_RESTART 0 |
|
|
1552 | #endif |
|
|
1553 | |
|
|
1554 | void |
867 | ev_signal_start (struct ev_signal *w) |
1555 | ev_signal_start (EV_P_ struct ev_signal *w) |
868 | { |
1556 | { |
|
|
1557 | #if EV_MULTIPLICITY |
|
|
1558 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1559 | #endif |
869 | if (ev_is_active (w)) |
1560 | if (expect_false (ev_is_active (w))) |
870 | return; |
1561 | return; |
871 | |
1562 | |
|
|
1563 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
1564 | |
872 | ev_start ((W)w, 1); |
1565 | ev_start (EV_A_ (W)w, 1); |
873 | array_needsize (signals, signalmax, w->signum, signals_init); |
1566 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
874 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1567 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
875 | |
1568 | |
876 | if (!w->next) |
1569 | if (!((WL)w)->next) |
877 | { |
1570 | { |
|
|
1571 | #if _WIN32 |
|
|
1572 | signal (w->signum, sighandler); |
|
|
1573 | #else |
878 | struct sigaction sa; |
1574 | struct sigaction sa; |
879 | sa.sa_handler = sighandler; |
1575 | sa.sa_handler = sighandler; |
880 | sigfillset (&sa.sa_mask); |
1576 | sigfillset (&sa.sa_mask); |
881 | sa.sa_flags = 0; |
1577 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
882 | sigaction (w->signum, &sa, 0); |
1578 | sigaction (w->signum, &sa, 0); |
|
|
1579 | #endif |
883 | } |
1580 | } |
884 | } |
1581 | } |
885 | |
1582 | |
886 | void |
1583 | void |
887 | ev_signal_stop (struct ev_signal *w) |
1584 | ev_signal_stop (EV_P_ struct ev_signal *w) |
888 | { |
1585 | { |
889 | ev_clear ((W)w); |
1586 | ev_clear_pending (EV_A_ (W)w); |
890 | if (!ev_is_active (w)) |
1587 | if (expect_false (!ev_is_active (w))) |
891 | return; |
1588 | return; |
892 | |
1589 | |
893 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1590 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
894 | ev_stop ((W)w); |
1591 | ev_stop (EV_A_ (W)w); |
895 | |
1592 | |
896 | if (!signals [w->signum - 1].head) |
1593 | if (!signals [w->signum - 1].head) |
897 | signal (w->signum, SIG_DFL); |
1594 | signal (w->signum, SIG_DFL); |
898 | } |
1595 | } |
899 | |
1596 | |
900 | void |
1597 | void |
901 | ev_idle_start (struct ev_idle *w) |
|
|
902 | { |
|
|
903 | if (ev_is_active (w)) |
|
|
904 | return; |
|
|
905 | |
|
|
906 | ev_start ((W)w, ++idlecnt); |
|
|
907 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
908 | idles [idlecnt - 1] = w; |
|
|
909 | } |
|
|
910 | |
|
|
911 | void |
|
|
912 | ev_idle_stop (struct ev_idle *w) |
|
|
913 | { |
|
|
914 | ev_clear ((W)w); |
|
|
915 | if (ev_is_active (w)) |
|
|
916 | return; |
|
|
917 | |
|
|
918 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
919 | ev_stop ((W)w); |
|
|
920 | } |
|
|
921 | |
|
|
922 | void |
|
|
923 | ev_prepare_start (struct ev_prepare *w) |
|
|
924 | { |
|
|
925 | if (ev_is_active (w)) |
|
|
926 | return; |
|
|
927 | |
|
|
928 | ev_start ((W)w, ++preparecnt); |
|
|
929 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
930 | prepares [preparecnt - 1] = w; |
|
|
931 | } |
|
|
932 | |
|
|
933 | void |
|
|
934 | ev_prepare_stop (struct ev_prepare *w) |
|
|
935 | { |
|
|
936 | ev_clear ((W)w); |
|
|
937 | if (ev_is_active (w)) |
|
|
938 | return; |
|
|
939 | |
|
|
940 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
941 | ev_stop ((W)w); |
|
|
942 | } |
|
|
943 | |
|
|
944 | void |
|
|
945 | ev_check_start (struct ev_check *w) |
|
|
946 | { |
|
|
947 | if (ev_is_active (w)) |
|
|
948 | return; |
|
|
949 | |
|
|
950 | ev_start ((W)w, ++checkcnt); |
|
|
951 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
952 | checks [checkcnt - 1] = w; |
|
|
953 | } |
|
|
954 | |
|
|
955 | void |
|
|
956 | ev_check_stop (struct ev_check *w) |
|
|
957 | { |
|
|
958 | ev_clear ((W)w); |
|
|
959 | if (ev_is_active (w)) |
|
|
960 | return; |
|
|
961 | |
|
|
962 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
963 | ev_stop ((W)w); |
|
|
964 | } |
|
|
965 | |
|
|
966 | void |
|
|
967 | ev_child_start (struct ev_child *w) |
1598 | ev_child_start (EV_P_ struct ev_child *w) |
968 | { |
1599 | { |
|
|
1600 | #if EV_MULTIPLICITY |
|
|
1601 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1602 | #endif |
969 | if (ev_is_active (w)) |
1603 | if (expect_false (ev_is_active (w))) |
970 | return; |
1604 | return; |
971 | |
1605 | |
972 | ev_start ((W)w, 1); |
1606 | ev_start (EV_A_ (W)w, 1); |
973 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1607 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
974 | } |
1608 | } |
975 | |
1609 | |
976 | void |
1610 | void |
977 | ev_child_stop (struct ev_child *w) |
1611 | ev_child_stop (EV_P_ struct ev_child *w) |
978 | { |
1612 | { |
979 | ev_clear ((W)w); |
1613 | ev_clear_pending (EV_A_ (W)w); |
980 | if (ev_is_active (w)) |
1614 | if (expect_false (!ev_is_active (w))) |
981 | return; |
1615 | return; |
982 | |
1616 | |
983 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1617 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
984 | ev_stop ((W)w); |
1618 | ev_stop (EV_A_ (W)w); |
985 | } |
1619 | } |
986 | |
1620 | |
987 | /*****************************************************************************/ |
1621 | /*****************************************************************************/ |
988 | |
1622 | |
989 | struct ev_once |
1623 | struct ev_once |
… | |
… | |
993 | void (*cb)(int revents, void *arg); |
1627 | void (*cb)(int revents, void *arg); |
994 | void *arg; |
1628 | void *arg; |
995 | }; |
1629 | }; |
996 | |
1630 | |
997 | static void |
1631 | static void |
998 | once_cb (struct ev_once *once, int revents) |
1632 | once_cb (EV_P_ struct ev_once *once, int revents) |
999 | { |
1633 | { |
1000 | void (*cb)(int revents, void *arg) = once->cb; |
1634 | void (*cb)(int revents, void *arg) = once->cb; |
1001 | void *arg = once->arg; |
1635 | void *arg = once->arg; |
1002 | |
1636 | |
1003 | ev_io_stop (&once->io); |
1637 | ev_io_stop (EV_A_ &once->io); |
1004 | ev_timer_stop (&once->to); |
1638 | ev_timer_stop (EV_A_ &once->to); |
1005 | free (once); |
1639 | ev_free (once); |
1006 | |
1640 | |
1007 | cb (revents, arg); |
1641 | cb (revents, arg); |
1008 | } |
1642 | } |
1009 | |
1643 | |
1010 | static void |
1644 | static void |
1011 | once_cb_io (struct ev_io *w, int revents) |
1645 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1012 | { |
1646 | { |
1013 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1647 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1014 | } |
1648 | } |
1015 | |
1649 | |
1016 | static void |
1650 | static void |
1017 | once_cb_to (struct ev_timer *w, int revents) |
1651 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1018 | { |
1652 | { |
1019 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1653 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1020 | } |
1654 | } |
1021 | |
1655 | |
1022 | void |
1656 | void |
1023 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1657 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1024 | { |
1658 | { |
1025 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1659 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1026 | |
1660 | |
1027 | if (!once) |
1661 | if (expect_false (!once)) |
|
|
1662 | { |
1028 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1663 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1029 | else |
1664 | return; |
1030 | { |
1665 | } |
|
|
1666 | |
1031 | once->cb = cb; |
1667 | once->cb = cb; |
1032 | once->arg = arg; |
1668 | once->arg = arg; |
1033 | |
1669 | |
1034 | ev_watcher_init (&once->io, once_cb_io); |
1670 | ev_init (&once->io, once_cb_io); |
1035 | if (fd >= 0) |
1671 | if (fd >= 0) |
1036 | { |
1672 | { |
1037 | ev_io_set (&once->io, fd, events); |
1673 | ev_io_set (&once->io, fd, events); |
1038 | ev_io_start (&once->io); |
1674 | ev_io_start (EV_A_ &once->io); |
1039 | } |
1675 | } |
1040 | |
1676 | |
1041 | ev_watcher_init (&once->to, once_cb_to); |
1677 | ev_init (&once->to, once_cb_to); |
1042 | if (timeout >= 0.) |
1678 | if (timeout >= 0.) |
1043 | { |
1679 | { |
1044 | ev_timer_set (&once->to, timeout, 0.); |
1680 | ev_timer_set (&once->to, timeout, 0.); |
1045 | ev_timer_start (&once->to); |
1681 | ev_timer_start (EV_A_ &once->to); |
1046 | } |
|
|
1047 | } |
|
|
1048 | } |
|
|
1049 | |
|
|
1050 | /*****************************************************************************/ |
|
|
1051 | |
|
|
1052 | #if 0 |
|
|
1053 | |
|
|
1054 | struct ev_io wio; |
|
|
1055 | |
|
|
1056 | static void |
|
|
1057 | sin_cb (struct ev_io *w, int revents) |
|
|
1058 | { |
|
|
1059 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1060 | } |
|
|
1061 | |
|
|
1062 | static void |
|
|
1063 | ocb (struct ev_timer *w, int revents) |
|
|
1064 | { |
|
|
1065 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1066 | ev_timer_stop (w); |
|
|
1067 | ev_timer_start (w); |
|
|
1068 | } |
|
|
1069 | |
|
|
1070 | static void |
|
|
1071 | scb (struct ev_signal *w, int revents) |
|
|
1072 | { |
|
|
1073 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1074 | ev_io_stop (&wio); |
|
|
1075 | ev_io_start (&wio); |
|
|
1076 | } |
|
|
1077 | |
|
|
1078 | static void |
|
|
1079 | gcb (struct ev_signal *w, int revents) |
|
|
1080 | { |
|
|
1081 | fprintf (stderr, "generic %x\n", revents); |
|
|
1082 | |
|
|
1083 | } |
|
|
1084 | |
|
|
1085 | int main (void) |
|
|
1086 | { |
|
|
1087 | ev_init (0); |
|
|
1088 | |
|
|
1089 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1090 | ev_io_start (&wio); |
|
|
1091 | |
|
|
1092 | struct ev_timer t[10000]; |
|
|
1093 | |
|
|
1094 | #if 0 |
|
|
1095 | int i; |
|
|
1096 | for (i = 0; i < 10000; ++i) |
|
|
1097 | { |
1682 | } |
1098 | struct ev_timer *w = t + i; |
|
|
1099 | ev_watcher_init (w, ocb, i); |
|
|
1100 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1101 | ev_timer_start (w); |
|
|
1102 | if (drand48 () < 0.5) |
|
|
1103 | ev_timer_stop (w); |
|
|
1104 | } |
|
|
1105 | #endif |
|
|
1106 | |
|
|
1107 | struct ev_timer t1; |
|
|
1108 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1109 | ev_timer_start (&t1); |
|
|
1110 | |
|
|
1111 | struct ev_signal sig; |
|
|
1112 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1113 | ev_signal_start (&sig); |
|
|
1114 | |
|
|
1115 | struct ev_check cw; |
|
|
1116 | ev_check_init (&cw, gcb); |
|
|
1117 | ev_check_start (&cw); |
|
|
1118 | |
|
|
1119 | struct ev_idle iw; |
|
|
1120 | ev_idle_init (&iw, gcb); |
|
|
1121 | ev_idle_start (&iw); |
|
|
1122 | |
|
|
1123 | ev_loop (0); |
|
|
1124 | |
|
|
1125 | return 0; |
|
|
1126 | } |
1683 | } |
1127 | |
1684 | |
|
|
1685 | #ifdef __cplusplus |
|
|
1686 | } |
1128 | #endif |
1687 | #endif |
1129 | |
1688 | |
1130 | |
|
|
1131 | |
|
|
1132 | |
|
|