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1 | /* |
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2 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions are |
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7 | * met: |
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8 | * |
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9 | * * Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * |
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12 | * * Redistributions in binary form must reproduce the above |
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13 | * copyright notice, this list of conditions and the following |
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14 | * disclaimer in the documentation and/or other materials provided |
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15 | * with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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18 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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19 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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20 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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21 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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22 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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23 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | */ |
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29 | |
1 | #include <math.h> |
30 | #include <math.h> |
2 | #include <stdlib.h> |
31 | #include <stdlib.h> |
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32 | #include <unistd.h> |
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33 | #include <fcntl.h> |
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34 | #include <signal.h> |
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35 | #include <stddef.h> |
3 | |
36 | |
4 | #include <stdio.h> |
37 | #include <stdio.h> |
5 | |
38 | |
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39 | #include <assert.h> |
6 | #include <errno.h> |
40 | #include <errno.h> |
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41 | #include <sys/types.h> |
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42 | #include <sys/wait.h> |
7 | #include <sys/time.h> |
43 | #include <sys/time.h> |
8 | #include <time.h> |
44 | #include <time.h> |
9 | |
45 | |
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46 | #ifndef HAVE_MONOTONIC |
10 | #ifdef CLOCK_MONOTONIC |
47 | # ifdef CLOCK_MONOTONIC |
11 | # define HAVE_MONOTONIC 1 |
48 | # define HAVE_MONOTONIC 1 |
12 | #endif |
49 | # endif |
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50 | #endif |
13 | |
51 | |
14 | #define HAVE_EPOLL 1 |
52 | #ifndef HAVE_SELECT |
15 | #define HAVE_REALTIME 1 |
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16 | #define HAVE_SELECT 0 |
53 | # define HAVE_SELECT 1 |
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54 | #endif |
17 | |
55 | |
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56 | #ifndef HAVE_EPOLL |
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57 | # define HAVE_EPOLL 0 |
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58 | #endif |
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59 | |
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60 | #ifndef HAVE_REALTIME |
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61 | # define HAVE_REALTIME 1 /* posix requirement, but might be slower */ |
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62 | #endif |
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63 | |
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64 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
18 | #define MAX_BLOCKTIME 60. |
65 | #define MAX_BLOCKTIME 60. |
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66 | #define PID_HASHSIZE 16 /* size of pid hahs table, must be power of two */ |
19 | |
67 | |
20 | #include "ev.h" |
68 | #include "ev.h" |
21 | |
69 | |
22 | struct ev_watcher { |
70 | typedef struct ev_watcher *W; |
23 | EV_WATCHER (ev_watcher); |
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24 | }; |
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25 | |
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26 | struct ev_watcher_list { |
71 | typedef struct ev_watcher_list *WL; |
27 | EV_WATCHER_LIST (ev_watcher_list); |
72 | typedef struct ev_watcher_time *WT; |
28 | }; |
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29 | |
73 | |
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74 | static ev_tstamp now, diff; /* monotonic clock */ |
30 | ev_tstamp ev_now; |
75 | ev_tstamp ev_now; |
31 | int ev_method; |
76 | int ev_method; |
32 | |
77 | |
33 | static int have_monotonic; /* runtime */ |
78 | static int have_monotonic; /* runtime */ |
34 | |
79 | |
35 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
80 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
36 | static void (*method_reify)(void); |
81 | static void (*method_modify)(int fd, int oev, int nev); |
37 | static void (*method_poll)(ev_tstamp timeout); |
82 | static void (*method_poll)(ev_tstamp timeout); |
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83 | |
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84 | /*****************************************************************************/ |
38 | |
85 | |
39 | ev_tstamp |
86 | ev_tstamp |
40 | ev_time (void) |
87 | ev_time (void) |
41 | { |
88 | { |
42 | #if HAVE_REALTIME |
89 | #if HAVE_REALTIME |
… | |
… | |
66 | } |
113 | } |
67 | |
114 | |
68 | #define array_needsize(base,cur,cnt,init) \ |
115 | #define array_needsize(base,cur,cnt,init) \ |
69 | if ((cnt) > cur) \ |
116 | if ((cnt) > cur) \ |
70 | { \ |
117 | { \ |
71 | int newcnt = cur ? cur << 1 : 16; \ |
118 | int newcnt = cur; \ |
72 | fprintf (stderr, "resize(" # base ") from %d to %d\n", cur, newcnt);\ |
119 | do \ |
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120 | { \ |
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121 | newcnt = (newcnt << 1) | 4 & ~3; \ |
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122 | } \ |
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123 | while ((cnt) > newcnt); \ |
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124 | \ |
73 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
125 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
74 | init (base + cur, newcnt - cur); \ |
126 | init (base + cur, newcnt - cur); \ |
75 | cur = newcnt; \ |
127 | cur = newcnt; \ |
76 | } |
128 | } |
77 | |
129 | |
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130 | /*****************************************************************************/ |
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131 | |
78 | typedef struct |
132 | typedef struct |
79 | { |
133 | { |
80 | struct ev_io *head; |
134 | struct ev_io *head; |
81 | unsigned char wev, rev; /* want, received event set */ |
135 | int events; |
82 | } ANFD; |
136 | } ANFD; |
83 | |
137 | |
84 | static ANFD *anfds; |
138 | static ANFD *anfds; |
85 | static int anfdmax; |
139 | static int anfdmax; |
86 | |
140 | |
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141 | static void |
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142 | anfds_init (ANFD *base, int count) |
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143 | { |
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144 | while (count--) |
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145 | { |
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146 | base->head = 0; |
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147 | base->events = EV_NONE; |
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148 | ++base; |
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149 | } |
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150 | } |
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151 | |
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152 | typedef struct |
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153 | { |
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154 | W w; |
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155 | int events; |
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156 | } ANPENDING; |
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157 | |
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158 | static ANPENDING *pendings; |
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159 | static int pendingmax, pendingcnt; |
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160 | |
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161 | static void |
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162 | event (W w, int events) |
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163 | { |
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164 | if (w->active) |
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165 | { |
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166 | w->pending = ++pendingcnt; |
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167 | array_needsize (pendings, pendingmax, pendingcnt, ); |
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168 | pendings [pendingcnt - 1].w = w; |
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169 | pendings [pendingcnt - 1].events = events; |
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170 | } |
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171 | } |
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172 | |
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173 | static void |
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174 | queue_events (W *events, int eventcnt, int type) |
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175 | { |
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176 | int i; |
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177 | |
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178 | for (i = 0; i < eventcnt; ++i) |
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179 | event (events [i], type); |
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180 | } |
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181 | |
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182 | static void |
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183 | fd_event (int fd, int events) |
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184 | { |
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185 | ANFD *anfd = anfds + fd; |
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186 | struct ev_io *w; |
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187 | |
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188 | for (w = anfd->head; w; w = w->next) |
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189 | { |
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190 | int ev = w->events & events; |
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191 | |
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192 | if (ev) |
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193 | event ((W)w, ev); |
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194 | } |
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195 | } |
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196 | |
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197 | /*****************************************************************************/ |
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198 | |
87 | static int *fdchanges; |
199 | static int *fdchanges; |
88 | static int fdchangemax, fdchangecnt; |
200 | static int fdchangemax, fdchangecnt; |
89 | |
201 | |
90 | static void |
202 | static void |
91 | anfds_init (ANFD *base, int count) |
203 | fd_reify (void) |
92 | { |
204 | { |
93 | while (count--) |
205 | int i; |
94 | { |
206 | |
95 | base->head = 0; |
207 | for (i = 0; i < fdchangecnt; ++i) |
96 | base->wev = base->rev = EV_NONE; |
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97 | ++base; |
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98 | } |
208 | { |
99 | } |
209 | int fd = fdchanges [i]; |
100 | |
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101 | typedef struct |
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102 | { |
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103 | struct ev_watcher *w; |
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104 | int events; |
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105 | } ANPENDING; |
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106 | |
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107 | static ANPENDING *pendings; |
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108 | static int pendingmax, pendingcnt; |
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109 | |
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110 | static void |
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111 | event (struct ev_watcher *w, int events) |
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112 | { |
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113 | w->pending = ++pendingcnt; |
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114 | array_needsize (pendings, pendingmax, pendingcnt, ); |
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115 | pendings [pendingcnt - 1].w = w; |
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116 | pendings [pendingcnt - 1].events = events; |
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117 | } |
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118 | |
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119 | static void |
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120 | fd_event (int fd, int events) |
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121 | { |
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122 | ANFD *anfd = anfds + fd; |
210 | ANFD *anfd = anfds + fd; |
123 | struct ev_io *w; |
211 | struct ev_io *w; |
124 | |
212 | |
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213 | int events = 0; |
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214 | |
125 | for (w = anfd->head; w; w = w->next) |
215 | for (w = anfd->head; w; w = w->next) |
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216 | events |= w->events; |
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217 | |
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218 | anfd->events &= ~EV_REIFY; |
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219 | |
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220 | if (anfd->events != events) |
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221 | { |
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222 | method_modify (fd, anfd->events, events); |
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223 | anfd->events = events; |
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224 | } |
126 | { |
225 | } |
127 | int ev = w->events & events; |
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128 | |
226 | |
129 | if (ev) |
227 | fdchangecnt = 0; |
130 | event ((struct ev_watcher *)w, ev); |
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131 | } |
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132 | } |
228 | } |
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229 | |
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230 | static void |
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231 | fd_change (int fd) |
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232 | { |
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233 | if (anfds [fd].events & EV_REIFY) |
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234 | return; |
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235 | |
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236 | anfds [fd].events |= EV_REIFY; |
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237 | |
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238 | ++fdchangecnt; |
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239 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
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240 | fdchanges [fdchangecnt - 1] = fd; |
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241 | } |
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242 | |
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243 | /* called on EBADF to verify fds */ |
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244 | static void |
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245 | fd_recheck (void) |
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246 | { |
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247 | int fd; |
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248 | |
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249 | for (fd = 0; fd < anfdmax; ++fd) |
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250 | if (anfds [fd].events) |
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251 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
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252 | while (anfds [fd].head) |
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253 | { |
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254 | event ((W)anfds [fd].head, EV_ERROR); |
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255 | evio_stop (anfds [fd].head); |
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256 | } |
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257 | } |
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258 | |
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259 | /*****************************************************************************/ |
133 | |
260 | |
134 | static struct ev_timer **timers; |
261 | static struct ev_timer **timers; |
135 | static int timermax, timercnt; |
262 | static int timermax, timercnt; |
136 | |
263 | |
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264 | static struct ev_periodic **periodics; |
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265 | static int periodicmax, periodiccnt; |
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266 | |
137 | static void |
267 | static void |
138 | upheap (int k) |
268 | upheap (WT *timers, int k) |
139 | { |
269 | { |
140 | struct ev_timer *w = timers [k]; |
270 | WT w = timers [k]; |
141 | |
271 | |
142 | while (k && timers [k >> 1]->at > w->at) |
272 | while (k && timers [k >> 1]->at > w->at) |
143 | { |
273 | { |
144 | timers [k] = timers [k >> 1]; |
274 | timers [k] = timers [k >> 1]; |
145 | timers [k]->active = k + 1; |
275 | timers [k]->active = k + 1; |
… | |
… | |
150 | timers [k]->active = k + 1; |
280 | timers [k]->active = k + 1; |
151 | |
281 | |
152 | } |
282 | } |
153 | |
283 | |
154 | static void |
284 | static void |
155 | downheap (int k) |
285 | downheap (WT *timers, int N, int k) |
156 | { |
286 | { |
157 | struct ev_timer *w = timers [k]; |
287 | WT w = timers [k]; |
158 | |
288 | |
159 | while (k < (timercnt >> 1)) |
289 | while (k < (N >> 1)) |
160 | { |
290 | { |
161 | int j = k << 1; |
291 | int j = k << 1; |
162 | |
292 | |
163 | if (j + 1 < timercnt && timers [j]->at > timers [j + 1]->at) |
293 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
164 | ++j; |
294 | ++j; |
165 | |
295 | |
166 | if (w->at <= timers [j]->at) |
296 | if (w->at <= timers [j]->at) |
167 | break; |
297 | break; |
168 | |
298 | |
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… | |
173 | |
303 | |
174 | timers [k] = w; |
304 | timers [k] = w; |
175 | timers [k]->active = k + 1; |
305 | timers [k]->active = k + 1; |
176 | } |
306 | } |
177 | |
307 | |
178 | static struct ev_signal **signals; |
308 | /*****************************************************************************/ |
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309 | |
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310 | typedef struct |
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311 | { |
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312 | struct ev_signal *head; |
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313 | sig_atomic_t gotsig; |
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314 | } ANSIG; |
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315 | |
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316 | static ANSIG *signals; |
179 | static int signalmax, signalcnt; |
317 | static int signalmax; |
180 | |
318 | |
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319 | static int sigpipe [2]; |
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320 | static sig_atomic_t gotsig; |
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321 | static struct ev_io sigev; |
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322 | |
181 | static void |
323 | static void |
182 | signals_init (struct ev_signal **base, int count) |
324 | signals_init (ANSIG *base, int count) |
183 | { |
325 | { |
184 | while (count--) |
326 | while (count--) |
185 | *base++ = 0; |
327 | { |
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328 | base->head = 0; |
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329 | base->gotsig = 0; |
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330 | ++base; |
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331 | } |
186 | } |
332 | } |
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333 | |
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334 | static void |
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335 | sighandler (int signum) |
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336 | { |
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337 | signals [signum - 1].gotsig = 1; |
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338 | |
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339 | if (!gotsig) |
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340 | { |
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341 | gotsig = 1; |
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342 | write (sigpipe [1], &gotsig, 1); |
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343 | } |
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344 | } |
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345 | |
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346 | static void |
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347 | sigcb (struct ev_io *iow, int revents) |
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348 | { |
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349 | struct ev_signal *w; |
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350 | int sig; |
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351 | |
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352 | gotsig = 0; |
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353 | read (sigpipe [0], &revents, 1); |
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354 | |
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355 | for (sig = signalmax; sig--; ) |
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356 | if (signals [sig].gotsig) |
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357 | { |
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358 | signals [sig].gotsig = 0; |
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359 | |
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360 | for (w = signals [sig].head; w; w = w->next) |
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361 | event ((W)w, EV_SIGNAL); |
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362 | } |
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363 | } |
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364 | |
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365 | static void |
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366 | siginit (void) |
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367 | { |
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368 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
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369 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
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370 | |
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371 | /* rather than sort out wether we really need nb, set it */ |
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372 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
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373 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
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374 | |
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375 | evio_set (&sigev, sigpipe [0], EV_READ); |
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376 | evio_start (&sigev); |
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377 | } |
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378 | |
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379 | /*****************************************************************************/ |
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380 | |
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381 | static struct ev_idle **idles; |
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382 | static int idlemax, idlecnt; |
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383 | |
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384 | static struct ev_prepare **prepares; |
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385 | static int preparemax, preparecnt; |
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386 | |
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387 | static struct ev_check **checks; |
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388 | static int checkmax, checkcnt; |
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389 | |
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390 | /*****************************************************************************/ |
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391 | |
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392 | static struct ev_child *childs [PID_HASHSIZE]; |
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393 | static struct ev_signal childev; |
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394 | |
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395 | #ifndef WCONTINUED |
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396 | # define WCONTINUED 0 |
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397 | #endif |
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398 | |
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399 | static void |
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400 | childcb (struct ev_signal *sw, int revents) |
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401 | { |
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402 | struct ev_child *w; |
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403 | int pid, status; |
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404 | |
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405 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
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406 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
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407 | if (w->pid == pid || w->pid == -1) |
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408 | { |
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409 | w->status = status; |
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410 | event ((W)w, EV_CHILD); |
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411 | } |
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412 | } |
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413 | |
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414 | /*****************************************************************************/ |
187 | |
415 | |
188 | #if HAVE_EPOLL |
416 | #if HAVE_EPOLL |
189 | # include "ev_epoll.c" |
417 | # include "ev_epoll.c" |
190 | #endif |
418 | #endif |
191 | #if HAVE_SELECT |
419 | #if HAVE_SELECT |
192 | # include "ev_select.c" |
420 | # include "ev_select.c" |
193 | #endif |
421 | #endif |
194 | |
422 | |
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423 | int |
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424 | ev_version_major (void) |
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425 | { |
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426 | return EV_VERSION_MAJOR; |
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427 | } |
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428 | |
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429 | int |
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430 | ev_version_minor (void) |
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431 | { |
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432 | return EV_VERSION_MINOR; |
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433 | } |
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434 | |
195 | int ev_init (int flags) |
435 | int ev_init (int flags) |
196 | { |
436 | { |
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437 | if (!ev_method) |
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438 | { |
197 | #if HAVE_MONOTONIC |
439 | #if HAVE_MONOTONIC |
198 | { |
440 | { |
199 | struct timespec ts; |
441 | struct timespec ts; |
200 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
442 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
201 | have_monotonic = 1; |
443 | have_monotonic = 1; |
202 | } |
444 | } |
203 | #endif |
445 | #endif |
204 | |
446 | |
205 | ev_now = ev_time (); |
447 | ev_now = ev_time (); |
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448 | now = get_clock (); |
|
|
449 | diff = ev_now - now; |
206 | |
450 | |
|
|
451 | if (pipe (sigpipe)) |
|
|
452 | return 0; |
|
|
453 | |
|
|
454 | ev_method = EVMETHOD_NONE; |
207 | #if HAVE_EPOLL |
455 | #if HAVE_EPOLL |
208 | if (epoll_init (flags)) |
456 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
209 | return ev_method; |
|
|
210 | #endif |
457 | #endif |
211 | #if HAVE_SELECT |
458 | #if HAVE_SELECT |
212 | if (select_init (flags)) |
459 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
213 | return ev_method; |
|
|
214 | #endif |
460 | #endif |
215 | |
461 | |
216 | ev_method = EVMETHOD_NONE; |
462 | if (ev_method) |
|
|
463 | { |
|
|
464 | evw_init (&sigev, sigcb); |
|
|
465 | siginit (); |
|
|
466 | |
|
|
467 | evsignal_init (&childev, childcb, SIGCHLD); |
|
|
468 | evsignal_start (&childev); |
|
|
469 | } |
|
|
470 | } |
|
|
471 | |
217 | return ev_method; |
472 | return ev_method; |
218 | } |
473 | } |
219 | |
474 | |
|
|
475 | /*****************************************************************************/ |
|
|
476 | |
|
|
477 | void |
220 | void ev_prefork (void) |
478 | ev_prefork (void) |
221 | { |
479 | { |
|
|
480 | /* nop */ |
222 | } |
481 | } |
223 | |
482 | |
|
|
483 | void |
224 | void ev_postfork_parent (void) |
484 | ev_postfork_parent (void) |
225 | { |
485 | { |
|
|
486 | /* nop */ |
226 | } |
487 | } |
227 | |
488 | |
|
|
489 | void |
228 | void ev_postfork_child (void) |
490 | ev_postfork_child (void) |
229 | { |
491 | { |
230 | #if HAVE_EPOLL |
492 | #if HAVE_EPOLL |
|
|
493 | if (ev_method == EVMETHOD_EPOLL) |
231 | epoll_postfork_child (); |
494 | epoll_postfork_child (); |
232 | #endif |
495 | #endif |
233 | } |
|
|
234 | |
496 | |
|
|
497 | evio_stop (&sigev); |
|
|
498 | close (sigpipe [0]); |
|
|
499 | close (sigpipe [1]); |
|
|
500 | pipe (sigpipe); |
|
|
501 | siginit (); |
|
|
502 | } |
|
|
503 | |
|
|
504 | /*****************************************************************************/ |
|
|
505 | |
235 | static void |
506 | static void |
236 | call_pending () |
507 | call_pending (void) |
237 | { |
508 | { |
238 | int i; |
509 | while (pendingcnt) |
239 | |
|
|
240 | for (i = 0; i < pendingcnt; ++i) |
|
|
241 | { |
510 | { |
242 | ANPENDING *p = pendings + i; |
511 | ANPENDING *p = pendings + --pendingcnt; |
243 | |
512 | |
244 | if (p->w) |
513 | if (p->w) |
245 | { |
514 | { |
246 | p->w->pending = 0; |
515 | p->w->pending = 0; |
247 | p->w->cb (p->w, p->events); |
516 | p->w->cb (p->w, p->events); |
248 | } |
517 | } |
249 | } |
518 | } |
250 | |
|
|
251 | pendingcnt = 0; |
|
|
252 | } |
519 | } |
253 | |
520 | |
254 | static void |
521 | static void |
255 | timer_reify (void) |
522 | timers_reify (void) |
256 | { |
523 | { |
257 | while (timercnt && timers [0]->at <= ev_now) |
524 | while (timercnt && timers [0]->at <= now) |
258 | { |
525 | { |
259 | struct ev_timer *w = timers [0]; |
526 | struct ev_timer *w = timers [0]; |
260 | |
527 | |
|
|
528 | event ((W)w, EV_TIMEOUT); |
|
|
529 | |
261 | /* first reschedule timer */ |
530 | /* first reschedule or stop timer */ |
262 | if (w->repeat) |
531 | if (w->repeat) |
263 | { |
532 | { |
264 | if (w->is_abs) |
|
|
265 | w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat; |
|
|
266 | else |
|
|
267 | w->at = ev_now + w->repeat; |
533 | w->at = now + w->repeat; |
268 | |
534 | assert (("timer timeout in the past, negative repeat?", w->at > now)); |
269 | downheap (0); |
535 | downheap ((WT *)timers, timercnt, 0); |
270 | } |
536 | } |
271 | else |
537 | else |
272 | evtimer_stop (w); /* nonrepeating: stop timer */ |
538 | evtimer_stop (w); /* nonrepeating: stop timer */ |
|
|
539 | } |
|
|
540 | } |
273 | |
541 | |
|
|
542 | static void |
|
|
543 | periodics_reify (void) |
|
|
544 | { |
|
|
545 | while (periodiccnt && periodics [0]->at <= ev_now) |
|
|
546 | { |
|
|
547 | struct ev_periodic *w = periodics [0]; |
|
|
548 | |
|
|
549 | /* first reschedule or stop timer */ |
|
|
550 | if (w->interval) |
|
|
551 | { |
|
|
552 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
|
|
553 | assert (("periodic timeout in the past, negative interval?", w->at > ev_now)); |
|
|
554 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
555 | } |
|
|
556 | else |
|
|
557 | evperiodic_stop (w); /* nonrepeating: stop timer */ |
|
|
558 | |
274 | event ((struct ev_watcher *)w, EV_TIMEOUT); |
559 | event ((W)w, EV_TIMEOUT); |
|
|
560 | } |
|
|
561 | } |
|
|
562 | |
|
|
563 | static void |
|
|
564 | periodics_reschedule (ev_tstamp diff) |
|
|
565 | { |
|
|
566 | int i; |
|
|
567 | |
|
|
568 | /* adjust periodics after time jump */ |
|
|
569 | for (i = 0; i < periodiccnt; ++i) |
|
|
570 | { |
|
|
571 | struct ev_periodic *w = periodics [i]; |
|
|
572 | |
|
|
573 | if (w->interval) |
|
|
574 | { |
|
|
575 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
|
|
576 | |
|
|
577 | if (fabs (diff) >= 1e-4) |
|
|
578 | { |
|
|
579 | evperiodic_stop (w); |
|
|
580 | evperiodic_start (w); |
|
|
581 | |
|
|
582 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
583 | } |
|
|
584 | } |
|
|
585 | } |
|
|
586 | } |
|
|
587 | |
|
|
588 | static void |
|
|
589 | time_update (void) |
|
|
590 | { |
|
|
591 | int i; |
|
|
592 | |
|
|
593 | ev_now = ev_time (); |
|
|
594 | |
|
|
595 | if (have_monotonic) |
|
|
596 | { |
|
|
597 | ev_tstamp odiff = diff; |
|
|
598 | |
|
|
599 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
600 | { |
|
|
601 | now = get_clock (); |
|
|
602 | diff = ev_now - now; |
|
|
603 | |
|
|
604 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
|
|
605 | return; /* all is well */ |
|
|
606 | |
|
|
607 | ev_now = ev_time (); |
|
|
608 | } |
|
|
609 | |
|
|
610 | periodics_reschedule (diff - odiff); |
|
|
611 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
612 | } |
|
|
613 | else |
|
|
614 | { |
|
|
615 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
|
|
616 | { |
|
|
617 | periodics_reschedule (ev_now - now); |
|
|
618 | |
|
|
619 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
620 | for (i = 0; i < timercnt; ++i) |
|
|
621 | timers [i]->at += diff; |
|
|
622 | } |
|
|
623 | |
|
|
624 | now = ev_now; |
275 | } |
625 | } |
276 | } |
626 | } |
277 | |
627 | |
278 | int ev_loop_done; |
628 | int ev_loop_done; |
279 | |
629 | |
280 | int ev_loop (int flags) |
630 | void ev_loop (int flags) |
281 | { |
631 | { |
282 | double block; |
632 | double block; |
283 | ev_loop_done = flags & EVLOOP_ONESHOT; |
633 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
284 | |
634 | |
285 | do |
635 | do |
286 | { |
636 | { |
|
|
637 | /* queue check watchers (and execute them) */ |
|
|
638 | if (preparecnt) |
|
|
639 | { |
|
|
640 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
|
|
641 | call_pending (); |
|
|
642 | } |
|
|
643 | |
287 | /* update fd-related kernel structures */ |
644 | /* update fd-related kernel structures */ |
288 | method_reify (); fdchangecnt = 0; |
645 | fd_reify (); |
289 | |
646 | |
290 | /* calculate blocking time */ |
647 | /* calculate blocking time */ |
|
|
648 | |
|
|
649 | /* we only need this for !monotonic clockor timers, but as we basically |
|
|
650 | always have timers, we just calculate it always */ |
291 | ev_now = ev_time (); |
651 | ev_now = ev_time (); |
292 | |
652 | |
293 | if (flags & EVLOOP_NONBLOCK) |
653 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
294 | block = 0.; |
654 | block = 0.; |
295 | else if (!timercnt) |
|
|
296 | block = MAX_BLOCKTIME; |
|
|
297 | else |
655 | else |
298 | { |
656 | { |
|
|
657 | block = MAX_BLOCKTIME; |
|
|
658 | |
|
|
659 | if (timercnt) |
|
|
660 | { |
|
|
661 | ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; |
|
|
662 | if (block > to) block = to; |
|
|
663 | } |
|
|
664 | |
|
|
665 | if (periodiccnt) |
|
|
666 | { |
299 | block = timers [0]->at - ev_now + method_fudge; |
667 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
|
|
668 | if (block > to) block = to; |
|
|
669 | } |
|
|
670 | |
300 | if (block < 0.) block = 0.; |
671 | if (block < 0.) block = 0.; |
301 | else if (block > MAX_BLOCKTIME) block = MAX_BLOCKTIME; |
|
|
302 | } |
672 | } |
303 | |
673 | |
304 | method_poll (block); |
674 | method_poll (block); |
305 | |
675 | |
|
|
676 | /* update ev_now, do magic */ |
|
|
677 | time_update (); |
|
|
678 | |
306 | /* put pending timers into pendign queue and reschedule them */ |
679 | /* queue pending timers and reschedule them */ |
307 | timer_reify (); |
680 | timers_reify (); /* relative timers called last */ |
|
|
681 | periodics_reify (); /* absolute timers called first */ |
308 | |
682 | |
309 | ev_now = ev_time (); |
683 | /* queue idle watchers unless io or timers are pending */ |
|
|
684 | if (!pendingcnt) |
|
|
685 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
|
|
686 | |
|
|
687 | /* queue check watchers, to be executed first */ |
|
|
688 | if (checkcnt) |
|
|
689 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
|
|
690 | |
310 | call_pending (); |
691 | call_pending (); |
311 | } |
692 | } |
312 | while (!ev_loop_done); |
693 | while (!ev_loop_done); |
313 | } |
|
|
314 | |
694 | |
|
|
695 | if (ev_loop_done != 2) |
|
|
696 | ev_loop_done = 0; |
|
|
697 | } |
|
|
698 | |
|
|
699 | /*****************************************************************************/ |
|
|
700 | |
315 | static void |
701 | static void |
316 | wlist_add (struct ev_watcher_list **head, struct ev_watcher_list *elem) |
702 | wlist_add (WL *head, WL elem) |
317 | { |
703 | { |
318 | elem->next = *head; |
704 | elem->next = *head; |
319 | *head = elem; |
705 | *head = elem; |
320 | } |
706 | } |
321 | |
707 | |
322 | static void |
708 | static void |
323 | wlist_del (struct ev_watcher_list **head, struct ev_watcher_list *elem) |
709 | wlist_del (WL *head, WL elem) |
324 | { |
710 | { |
325 | while (*head) |
711 | while (*head) |
326 | { |
712 | { |
327 | if (*head == elem) |
713 | if (*head == elem) |
328 | { |
714 | { |
… | |
… | |
333 | head = &(*head)->next; |
719 | head = &(*head)->next; |
334 | } |
720 | } |
335 | } |
721 | } |
336 | |
722 | |
337 | static void |
723 | static void |
338 | ev_start (struct ev_watcher *w, int active) |
724 | ev_clear (W w) |
339 | { |
725 | { |
|
|
726 | if (w->pending) |
|
|
727 | { |
|
|
728 | pendings [w->pending - 1].w = 0; |
340 | w->pending = 0; |
729 | w->pending = 0; |
|
|
730 | } |
|
|
731 | } |
|
|
732 | |
|
|
733 | static void |
|
|
734 | ev_start (W w, int active) |
|
|
735 | { |
341 | w->active = active; |
736 | w->active = active; |
342 | } |
737 | } |
343 | |
738 | |
344 | static void |
739 | static void |
345 | ev_stop (struct ev_watcher *w) |
740 | ev_stop (W w) |
346 | { |
741 | { |
347 | if (w->pending) |
|
|
348 | pendings [w->pending - 1].w = 0; |
|
|
349 | |
|
|
350 | w->active = 0; |
742 | w->active = 0; |
351 | /* nop */ |
|
|
352 | } |
743 | } |
|
|
744 | |
|
|
745 | /*****************************************************************************/ |
353 | |
746 | |
354 | void |
747 | void |
355 | evio_start (struct ev_io *w) |
748 | evio_start (struct ev_io *w) |
356 | { |
749 | { |
357 | if (ev_is_active (w)) |
750 | if (ev_is_active (w)) |
358 | return; |
751 | return; |
359 | |
752 | |
360 | int fd = w->fd; |
753 | int fd = w->fd; |
361 | |
754 | |
362 | ev_start ((struct ev_watcher *)w, 1); |
755 | ev_start ((W)w, 1); |
363 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
756 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
364 | wlist_add ((struct ev_watcher_list **)&anfds[fd].head, (struct ev_watcher_list *)w); |
757 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
365 | |
758 | |
366 | ++fdchangecnt; |
759 | fd_change (fd); |
367 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
368 | fdchanges [fdchangecnt - 1] = fd; |
|
|
369 | } |
760 | } |
370 | |
761 | |
371 | void |
762 | void |
372 | evio_stop (struct ev_io *w) |
763 | evio_stop (struct ev_io *w) |
373 | { |
764 | { |
|
|
765 | ev_clear ((W)w); |
374 | if (!ev_is_active (w)) |
766 | if (!ev_is_active (w)) |
375 | return; |
767 | return; |
376 | |
768 | |
377 | wlist_del ((struct ev_watcher_list **)&anfds[w->fd].head, (struct ev_watcher_list *)w); |
769 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
378 | ev_stop ((struct ev_watcher *)w); |
770 | ev_stop ((W)w); |
379 | |
771 | |
380 | ++fdchangecnt; |
772 | fd_change (w->fd); |
381 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
382 | fdchanges [fdchangecnt - 1] = w->fd; |
|
|
383 | } |
773 | } |
384 | |
774 | |
385 | void |
775 | void |
386 | evtimer_start (struct ev_timer *w) |
776 | evtimer_start (struct ev_timer *w) |
387 | { |
777 | { |
388 | if (ev_is_active (w)) |
778 | if (ev_is_active (w)) |
389 | return; |
779 | return; |
390 | |
780 | |
391 | if (w->is_abs) |
|
|
392 | { |
|
|
393 | /* this formula differs from the one in timer_reify becuse we do not round up */ |
|
|
394 | if (w->repeat) |
|
|
395 | w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat; |
|
|
396 | } |
|
|
397 | else |
|
|
398 | w->at += ev_now; |
781 | w->at += now; |
399 | |
782 | |
400 | ev_start ((struct ev_watcher *)w, ++timercnt); |
783 | assert (("timer repeat value less than zero not allowed", w->repeat >= 0.)); |
|
|
784 | |
|
|
785 | ev_start ((W)w, ++timercnt); |
401 | array_needsize (timers, timermax, timercnt, ); |
786 | array_needsize (timers, timermax, timercnt, ); |
402 | timers [timercnt - 1] = w; |
787 | timers [timercnt - 1] = w; |
403 | upheap (timercnt - 1); |
788 | upheap ((WT *)timers, timercnt - 1); |
404 | } |
789 | } |
405 | |
790 | |
406 | void |
791 | void |
407 | evtimer_stop (struct ev_timer *w) |
792 | evtimer_stop (struct ev_timer *w) |
408 | { |
793 | { |
|
|
794 | ev_clear ((W)w); |
409 | if (!ev_is_active (w)) |
795 | if (!ev_is_active (w)) |
410 | return; |
796 | return; |
411 | |
797 | |
412 | if (w->active < timercnt--) |
798 | if (w->active < timercnt--) |
413 | { |
799 | { |
414 | timers [w->active - 1] = timers [timercnt]; |
800 | timers [w->active - 1] = timers [timercnt]; |
415 | downheap (w->active - 1); |
801 | downheap ((WT *)timers, timercnt, w->active - 1); |
|
|
802 | } |
|
|
803 | |
|
|
804 | w->at = w->repeat; |
|
|
805 | |
|
|
806 | ev_stop ((W)w); |
|
|
807 | } |
|
|
808 | |
|
|
809 | void |
|
|
810 | evtimer_again (struct ev_timer *w) |
|
|
811 | { |
|
|
812 | if (ev_is_active (w)) |
416 | } |
813 | { |
|
|
814 | if (w->repeat) |
|
|
815 | { |
|
|
816 | w->at = now + w->repeat; |
|
|
817 | downheap ((WT *)timers, timercnt, w->active - 1); |
|
|
818 | } |
|
|
819 | else |
|
|
820 | evtimer_stop (w); |
|
|
821 | } |
|
|
822 | else if (w->repeat) |
|
|
823 | evtimer_start (w); |
|
|
824 | } |
417 | |
825 | |
418 | ev_stop ((struct ev_watcher *)w); |
826 | void |
|
|
827 | evperiodic_start (struct ev_periodic *w) |
|
|
828 | { |
|
|
829 | if (ev_is_active (w)) |
|
|
830 | return; |
|
|
831 | |
|
|
832 | assert (("periodic interval value less than zero not allowed", w->interval >= 0.)); |
|
|
833 | |
|
|
834 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
|
|
835 | if (w->interval) |
|
|
836 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
|
|
837 | |
|
|
838 | ev_start ((W)w, ++periodiccnt); |
|
|
839 | array_needsize (periodics, periodicmax, periodiccnt, ); |
|
|
840 | periodics [periodiccnt - 1] = w; |
|
|
841 | upheap ((WT *)periodics, periodiccnt - 1); |
|
|
842 | } |
|
|
843 | |
|
|
844 | void |
|
|
845 | evperiodic_stop (struct ev_periodic *w) |
|
|
846 | { |
|
|
847 | ev_clear ((W)w); |
|
|
848 | if (!ev_is_active (w)) |
|
|
849 | return; |
|
|
850 | |
|
|
851 | if (w->active < periodiccnt--) |
|
|
852 | { |
|
|
853 | periodics [w->active - 1] = periodics [periodiccnt]; |
|
|
854 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
|
|
855 | } |
|
|
856 | |
|
|
857 | ev_stop ((W)w); |
419 | } |
858 | } |
420 | |
859 | |
421 | void |
860 | void |
422 | evsignal_start (struct ev_signal *w) |
861 | evsignal_start (struct ev_signal *w) |
423 | { |
862 | { |
424 | if (ev_is_active (w)) |
863 | if (ev_is_active (w)) |
425 | return; |
864 | return; |
426 | |
865 | |
427 | ev_start ((struct ev_watcher *)w, 1); |
866 | ev_start ((W)w, 1); |
428 | array_needsize (signals, signalmax, w->signum, signals_init); |
867 | array_needsize (signals, signalmax, w->signum, signals_init); |
429 | wlist_add ((struct ev_watcher_list **)&signals [w->signum - 1], (struct ev_watcher_list *)w); |
868 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
|
|
869 | |
|
|
870 | if (!w->next) |
|
|
871 | { |
|
|
872 | struct sigaction sa; |
|
|
873 | sa.sa_handler = sighandler; |
|
|
874 | sigfillset (&sa.sa_mask); |
|
|
875 | sa.sa_flags = 0; |
|
|
876 | sigaction (w->signum, &sa, 0); |
|
|
877 | } |
430 | } |
878 | } |
431 | |
879 | |
432 | void |
880 | void |
433 | evsignal_stop (struct ev_signal *w) |
881 | evsignal_stop (struct ev_signal *w) |
434 | { |
882 | { |
|
|
883 | ev_clear ((W)w); |
435 | if (!ev_is_active (w)) |
884 | if (!ev_is_active (w)) |
436 | return; |
885 | return; |
437 | |
886 | |
438 | wlist_del ((struct ev_watcher_list **)&signals [w->signum - 1], (struct ev_watcher_list *)w); |
887 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
439 | ev_stop ((struct ev_watcher *)w); |
888 | ev_stop ((W)w); |
440 | } |
|
|
441 | |
889 | |
|
|
890 | if (!signals [w->signum - 1].head) |
|
|
891 | signal (w->signum, SIG_DFL); |
|
|
892 | } |
|
|
893 | |
|
|
894 | void evidle_start (struct ev_idle *w) |
|
|
895 | { |
|
|
896 | if (ev_is_active (w)) |
|
|
897 | return; |
|
|
898 | |
|
|
899 | ev_start ((W)w, ++idlecnt); |
|
|
900 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
901 | idles [idlecnt - 1] = w; |
|
|
902 | } |
|
|
903 | |
|
|
904 | void evidle_stop (struct ev_idle *w) |
|
|
905 | { |
|
|
906 | ev_clear ((W)w); |
|
|
907 | if (ev_is_active (w)) |
|
|
908 | return; |
|
|
909 | |
|
|
910 | idles [w->active - 1] = idles [--idlecnt]; |
|
|
911 | ev_stop ((W)w); |
|
|
912 | } |
|
|
913 | |
|
|
914 | void evprepare_start (struct ev_prepare *w) |
|
|
915 | { |
|
|
916 | if (ev_is_active (w)) |
|
|
917 | return; |
|
|
918 | |
|
|
919 | ev_start ((W)w, ++preparecnt); |
|
|
920 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
921 | prepares [preparecnt - 1] = w; |
|
|
922 | } |
|
|
923 | |
|
|
924 | void evprepare_stop (struct ev_prepare *w) |
|
|
925 | { |
|
|
926 | ev_clear ((W)w); |
|
|
927 | if (ev_is_active (w)) |
|
|
928 | return; |
|
|
929 | |
|
|
930 | prepares [w->active - 1] = prepares [--preparecnt]; |
|
|
931 | ev_stop ((W)w); |
|
|
932 | } |
|
|
933 | |
|
|
934 | void evcheck_start (struct ev_check *w) |
|
|
935 | { |
|
|
936 | if (ev_is_active (w)) |
|
|
937 | return; |
|
|
938 | |
|
|
939 | ev_start ((W)w, ++checkcnt); |
|
|
940 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
941 | checks [checkcnt - 1] = w; |
|
|
942 | } |
|
|
943 | |
|
|
944 | void evcheck_stop (struct ev_check *w) |
|
|
945 | { |
|
|
946 | ev_clear ((W)w); |
|
|
947 | if (ev_is_active (w)) |
|
|
948 | return; |
|
|
949 | |
|
|
950 | checks [w->active - 1] = checks [--checkcnt]; |
|
|
951 | ev_stop ((W)w); |
|
|
952 | } |
|
|
953 | |
|
|
954 | void evchild_start (struct ev_child *w) |
|
|
955 | { |
|
|
956 | if (ev_is_active (w)) |
|
|
957 | return; |
|
|
958 | |
|
|
959 | ev_start ((W)w, 1); |
|
|
960 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
961 | } |
|
|
962 | |
|
|
963 | void evchild_stop (struct ev_child *w) |
|
|
964 | { |
|
|
965 | ev_clear ((W)w); |
|
|
966 | if (ev_is_active (w)) |
|
|
967 | return; |
|
|
968 | |
|
|
969 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
970 | ev_stop ((W)w); |
|
|
971 | } |
|
|
972 | |
442 | /*****************************************************************************/ |
973 | /*****************************************************************************/ |
|
|
974 | |
|
|
975 | struct ev_once |
|
|
976 | { |
|
|
977 | struct ev_io io; |
|
|
978 | struct ev_timer to; |
|
|
979 | void (*cb)(int revents, void *arg); |
|
|
980 | void *arg; |
|
|
981 | }; |
|
|
982 | |
|
|
983 | static void |
|
|
984 | once_cb (struct ev_once *once, int revents) |
|
|
985 | { |
|
|
986 | void (*cb)(int revents, void *arg) = once->cb; |
|
|
987 | void *arg = once->arg; |
|
|
988 | |
|
|
989 | evio_stop (&once->io); |
|
|
990 | evtimer_stop (&once->to); |
|
|
991 | free (once); |
|
|
992 | |
|
|
993 | cb (revents, arg); |
|
|
994 | } |
|
|
995 | |
|
|
996 | static void |
|
|
997 | once_cb_io (struct ev_io *w, int revents) |
|
|
998 | { |
|
|
999 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
|
|
1000 | } |
|
|
1001 | |
|
|
1002 | static void |
|
|
1003 | once_cb_to (struct ev_timer *w, int revents) |
|
|
1004 | { |
|
|
1005 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
|
|
1006 | } |
|
|
1007 | |
|
|
1008 | void |
|
|
1009 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
|
|
1010 | { |
|
|
1011 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
|
|
1012 | |
|
|
1013 | if (!once) |
|
|
1014 | cb (EV_ERROR, arg); |
|
|
1015 | else |
|
|
1016 | { |
|
|
1017 | once->cb = cb; |
|
|
1018 | once->arg = arg; |
|
|
1019 | |
|
|
1020 | evw_init (&once->io, once_cb_io); |
|
|
1021 | |
|
|
1022 | if (fd >= 0) |
|
|
1023 | { |
|
|
1024 | evio_set (&once->io, fd, events); |
|
|
1025 | evio_start (&once->io); |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | evw_init (&once->to, once_cb_to); |
|
|
1029 | |
|
|
1030 | if (timeout >= 0.) |
|
|
1031 | { |
|
|
1032 | evtimer_set (&once->to, timeout, 0.); |
|
|
1033 | evtimer_start (&once->to); |
|
|
1034 | } |
|
|
1035 | } |
|
|
1036 | } |
|
|
1037 | |
|
|
1038 | /*****************************************************************************/ |
|
|
1039 | |
443 | #if 1 |
1040 | #if 0 |
|
|
1041 | |
|
|
1042 | struct ev_io wio; |
444 | |
1043 | |
445 | static void |
1044 | static void |
446 | sin_cb (struct ev_io *w, int revents) |
1045 | sin_cb (struct ev_io *w, int revents) |
447 | { |
1046 | { |
448 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
1047 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
449 | } |
1048 | } |
450 | |
1049 | |
451 | static void |
1050 | static void |
452 | ocb (struct ev_timer *w, int revents) |
1051 | ocb (struct ev_timer *w, int revents) |
453 | { |
1052 | { |
454 | fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
1053 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1054 | evtimer_stop (w); |
|
|
1055 | evtimer_start (w); |
|
|
1056 | } |
|
|
1057 | |
|
|
1058 | static void |
|
|
1059 | scb (struct ev_signal *w, int revents) |
|
|
1060 | { |
|
|
1061 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1062 | evio_stop (&wio); |
|
|
1063 | evio_start (&wio); |
|
|
1064 | } |
|
|
1065 | |
|
|
1066 | static void |
|
|
1067 | gcb (struct ev_signal *w, int revents) |
|
|
1068 | { |
|
|
1069 | fprintf (stderr, "generic %x\n", revents); |
|
|
1070 | |
455 | } |
1071 | } |
456 | |
1072 | |
457 | int main (void) |
1073 | int main (void) |
458 | { |
1074 | { |
459 | struct ev_io sin; |
|
|
460 | |
|
|
461 | ev_init (0); |
1075 | ev_init (0); |
462 | |
1076 | |
463 | evw_init (&sin, sin_cb, 55); |
|
|
464 | evio_set (&sin, 0, EV_READ); |
1077 | evio_init (&wio, sin_cb, 0, EV_READ); |
465 | evio_start (&sin); |
1078 | evio_start (&wio); |
466 | |
1079 | |
467 | struct ev_timer t[1000]; |
1080 | struct ev_timer t[10000]; |
468 | |
1081 | |
|
|
1082 | #if 0 |
469 | int i; |
1083 | int i; |
470 | for (i = 0; i < 1000; ++i) |
1084 | for (i = 0; i < 10000; ++i) |
471 | { |
1085 | { |
472 | struct ev_timer *w = t + i; |
1086 | struct ev_timer *w = t + i; |
473 | evw_init (w, ocb, i); |
1087 | evw_init (w, ocb, i); |
474 | evtimer_set_rel (w, drand48 (), 0); |
1088 | evtimer_init_abs (w, ocb, drand48 (), 0.99775533); |
475 | evtimer_start (w); |
1089 | evtimer_start (w); |
476 | if (drand48 () < 0.5) |
1090 | if (drand48 () < 0.5) |
477 | evtimer_stop (w); |
1091 | evtimer_stop (w); |
478 | } |
1092 | } |
|
|
1093 | #endif |
|
|
1094 | |
|
|
1095 | struct ev_timer t1; |
|
|
1096 | evtimer_init (&t1, ocb, 5, 10); |
|
|
1097 | evtimer_start (&t1); |
|
|
1098 | |
|
|
1099 | struct ev_signal sig; |
|
|
1100 | evsignal_init (&sig, scb, SIGQUIT); |
|
|
1101 | evsignal_start (&sig); |
|
|
1102 | |
|
|
1103 | struct ev_check cw; |
|
|
1104 | evcheck_init (&cw, gcb); |
|
|
1105 | evcheck_start (&cw); |
|
|
1106 | |
|
|
1107 | struct ev_idle iw; |
|
|
1108 | evidle_init (&iw, gcb); |
|
|
1109 | evidle_start (&iw); |
479 | |
1110 | |
480 | ev_loop (0); |
1111 | ev_loop (0); |
481 | |
1112 | |
482 | return 0; |
1113 | return 0; |
483 | } |
1114 | } |