1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
35 | |
43 | |
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44 | /* this big block deduces configuration from config.h */ |
36 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
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46 | # ifdef EV_CONFIG_H |
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47 | # include EV_CONFIG_H |
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48 | # else |
37 | # include "config.h" |
49 | # include "config.h" |
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50 | # endif |
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51 | |
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52 | # if HAVE_CLOCK_SYSCALL |
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53 | # ifndef EV_USE_CLOCK_SYSCALL |
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54 | # define EV_USE_CLOCK_SYSCALL 1 |
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55 | # ifndef EV_USE_REALTIME |
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56 | # define EV_USE_REALTIME 0 |
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57 | # endif |
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58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
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61 | # endif |
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62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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64 | # endif |
38 | |
65 | |
39 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
40 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
41 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
42 | # endif |
69 | # endif |
43 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
44 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
45 | # endif |
72 | # endif |
46 | # else |
73 | # else |
47 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
48 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
49 | # endif |
76 | # endif |
50 | # ifndef EV_USE_REALTIME |
77 | # ifndef EV_USE_REALTIME |
51 | # define EV_USE_REALTIME 0 |
78 | # define EV_USE_REALTIME 0 |
52 | # endif |
79 | # endif |
53 | # endif |
80 | # endif |
54 | |
81 | |
55 | # if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) |
82 | # ifndef EV_USE_NANOSLEEP |
56 | # define EV_USE_SELECT 1 |
83 | # if HAVE_NANOSLEEP |
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84 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
57 | # else |
85 | # else |
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86 | # define EV_USE_NANOSLEEP 0 |
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87 | # endif |
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88 | # endif |
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89 | |
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90 | # ifndef EV_USE_SELECT |
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91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
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92 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
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93 | # else |
58 | # define EV_USE_SELECT 0 |
94 | # define EV_USE_SELECT 0 |
59 | # endif |
95 | # endif |
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96 | # endif |
60 | |
97 | |
61 | # if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) |
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62 | # define EV_USE_POLL 1 |
98 | # ifndef EV_USE_POLL |
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99 | # if HAVE_POLL && HAVE_POLL_H |
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100 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
63 | # else |
101 | # else |
64 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
65 | # endif |
103 | # endif |
66 | |
104 | # endif |
67 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) |
105 | |
68 | # define EV_USE_EPOLL 1 |
106 | # ifndef EV_USE_EPOLL |
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107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
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108 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
69 | # else |
109 | # else |
70 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
71 | # endif |
111 | # endif |
72 | |
112 | # endif |
73 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) |
113 | |
74 | # define EV_USE_KQUEUE 1 |
114 | # ifndef EV_USE_KQUEUE |
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115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
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116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
75 | # else |
117 | # else |
76 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
77 | # endif |
119 | # endif |
78 | |
120 | # endif |
79 | # if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT) |
121 | |
80 | # define EV_USE_PORT 1 |
122 | # ifndef EV_USE_PORT |
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123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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124 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
81 | # else |
125 | # else |
82 | # define EV_USE_PORT 0 |
126 | # define EV_USE_PORT 0 |
83 | # endif |
127 | # endif |
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128 | # endif |
84 | |
129 | |
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130 | # ifndef EV_USE_INOTIFY |
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131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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132 | # define EV_USE_INOTIFY EV_FEATURE_OS |
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133 | # else |
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134 | # define EV_USE_INOTIFY 0 |
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135 | # endif |
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136 | # endif |
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137 | |
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138 | # ifndef EV_USE_SIGNALFD |
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139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
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140 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
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141 | # else |
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142 | # define EV_USE_SIGNALFD 0 |
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143 | # endif |
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144 | # endif |
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145 | |
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146 | # ifndef EV_USE_EVENTFD |
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147 | # if HAVE_EVENTFD |
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148 | # define EV_USE_EVENTFD EV_FEATURE_OS |
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149 | # else |
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150 | # define EV_USE_EVENTFD 0 |
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151 | # endif |
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152 | # endif |
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153 | |
85 | #endif |
154 | #endif |
86 | |
155 | |
87 | #include <math.h> |
156 | #include <math.h> |
88 | #include <stdlib.h> |
157 | #include <stdlib.h> |
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158 | #include <string.h> |
89 | #include <fcntl.h> |
159 | #include <fcntl.h> |
90 | #include <stddef.h> |
160 | #include <stddef.h> |
91 | |
161 | |
92 | #include <stdio.h> |
162 | #include <stdio.h> |
93 | |
163 | |
94 | #include <assert.h> |
164 | #include <assert.h> |
95 | #include <errno.h> |
165 | #include <errno.h> |
96 | #include <sys/types.h> |
166 | #include <sys/types.h> |
97 | #include <time.h> |
167 | #include <time.h> |
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168 | #include <limits.h> |
98 | |
169 | |
99 | #include <signal.h> |
170 | #include <signal.h> |
100 | |
171 | |
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172 | #ifdef EV_H |
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173 | # include EV_H |
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174 | #else |
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175 | # include "ev.h" |
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176 | #endif |
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177 | |
101 | #ifndef _WIN32 |
178 | #ifndef _WIN32 |
102 | # include <unistd.h> |
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103 | # include <sys/time.h> |
179 | # include <sys/time.h> |
104 | # include <sys/wait.h> |
180 | # include <sys/wait.h> |
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181 | # include <unistd.h> |
105 | #else |
182 | #else |
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183 | # include <io.h> |
106 | # define WIN32_LEAN_AND_MEAN |
184 | # define WIN32_LEAN_AND_MEAN |
107 | # include <windows.h> |
185 | # include <windows.h> |
108 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
109 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
110 | # endif |
188 | # endif |
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189 | # undef EV_AVOID_STDIO |
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190 | #endif |
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191 | |
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192 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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193 | |
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194 | /* try to deduce the maximum number of signals on this platform */ |
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195 | #if defined (EV_NSIG) |
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196 | /* use what's provided */ |
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197 | #elif defined (NSIG) |
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198 | # define EV_NSIG (NSIG) |
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199 | #elif defined(_NSIG) |
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200 | # define EV_NSIG (_NSIG) |
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201 | #elif defined (SIGMAX) |
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202 | # define EV_NSIG (SIGMAX+1) |
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203 | #elif defined (SIG_MAX) |
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204 | # define EV_NSIG (SIG_MAX+1) |
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205 | #elif defined (_SIG_MAX) |
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206 | # define EV_NSIG (_SIG_MAX+1) |
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207 | #elif defined (MAXSIG) |
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208 | # define EV_NSIG (MAXSIG+1) |
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209 | #elif defined (MAX_SIG) |
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210 | # define EV_NSIG (MAX_SIG+1) |
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211 | #elif defined (SIGARRAYSIZE) |
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212 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
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213 | #elif defined (_sys_nsig) |
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214 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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215 | #else |
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216 | # error "unable to find value for NSIG, please report" |
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217 | /* to make it compile regardless, just remove the above line, */ |
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218 | /* but consider reporting it, too! :) */ |
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219 | # define EV_NSIG 65 |
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220 | #endif |
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221 | |
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222 | #ifndef EV_USE_CLOCK_SYSCALL |
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223 | # if __linux && __GLIBC__ >= 2 |
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224 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
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225 | # else |
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226 | # define EV_USE_CLOCK_SYSCALL 0 |
111 | #endif |
227 | # endif |
112 | |
228 | #endif |
113 | /**/ |
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114 | |
229 | |
115 | #ifndef EV_USE_MONOTONIC |
230 | #ifndef EV_USE_MONOTONIC |
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231 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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232 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
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233 | # else |
116 | # define EV_USE_MONOTONIC 0 |
234 | # define EV_USE_MONOTONIC 0 |
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235 | # endif |
117 | #endif |
236 | #endif |
118 | |
237 | |
119 | #ifndef EV_USE_REALTIME |
238 | #ifndef EV_USE_REALTIME |
120 | # define EV_USE_REALTIME 0 |
239 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
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240 | #endif |
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241 | |
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242 | #ifndef EV_USE_NANOSLEEP |
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243 | # if _POSIX_C_SOURCE >= 199309L |
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244 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
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245 | # else |
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246 | # define EV_USE_NANOSLEEP 0 |
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247 | # endif |
121 | #endif |
248 | #endif |
122 | |
249 | |
123 | #ifndef EV_USE_SELECT |
250 | #ifndef EV_USE_SELECT |
124 | # define EV_USE_SELECT 1 |
251 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
125 | #endif |
252 | #endif |
126 | |
253 | |
127 | #ifndef EV_USE_POLL |
254 | #ifndef EV_USE_POLL |
128 | # ifdef _WIN32 |
255 | # ifdef _WIN32 |
129 | # define EV_USE_POLL 0 |
256 | # define EV_USE_POLL 0 |
130 | # else |
257 | # else |
131 | # define EV_USE_POLL 1 |
258 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
132 | # endif |
259 | # endif |
133 | #endif |
260 | #endif |
134 | |
261 | |
135 | #ifndef EV_USE_EPOLL |
262 | #ifndef EV_USE_EPOLL |
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263 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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264 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
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265 | # else |
136 | # define EV_USE_EPOLL 0 |
266 | # define EV_USE_EPOLL 0 |
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267 | # endif |
137 | #endif |
268 | #endif |
138 | |
269 | |
139 | #ifndef EV_USE_KQUEUE |
270 | #ifndef EV_USE_KQUEUE |
140 | # define EV_USE_KQUEUE 0 |
271 | # define EV_USE_KQUEUE 0 |
141 | #endif |
272 | #endif |
142 | |
273 | |
143 | #ifndef EV_USE_PORT |
274 | #ifndef EV_USE_PORT |
144 | # define EV_USE_PORT 0 |
275 | # define EV_USE_PORT 0 |
145 | #endif |
276 | #endif |
146 | |
277 | |
147 | /**/ |
278 | #ifndef EV_USE_INOTIFY |
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279 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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280 | # define EV_USE_INOTIFY EV_FEATURE_OS |
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281 | # else |
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282 | # define EV_USE_INOTIFY 0 |
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283 | # endif |
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284 | #endif |
148 | |
285 | |
149 | /* darwin simply cannot be helped */ |
286 | #ifndef EV_PID_HASHSIZE |
150 | #ifdef __APPLE__ |
287 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
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288 | #endif |
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289 | |
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290 | #ifndef EV_INOTIFY_HASHSIZE |
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291 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
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292 | #endif |
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293 | |
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294 | #ifndef EV_USE_EVENTFD |
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295 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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296 | # define EV_USE_EVENTFD EV_FEATURE_OS |
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297 | # else |
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298 | # define EV_USE_EVENTFD 0 |
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299 | # endif |
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300 | #endif |
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301 | |
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302 | #ifndef EV_USE_SIGNALFD |
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303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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304 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
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305 | # else |
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306 | # define EV_USE_SIGNALFD 0 |
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307 | # endif |
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308 | #endif |
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309 | |
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310 | #if 0 /* debugging */ |
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311 | # define EV_VERIFY 3 |
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312 | # define EV_USE_4HEAP 1 |
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313 | # define EV_HEAP_CACHE_AT 1 |
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314 | #endif |
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315 | |
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316 | #ifndef EV_VERIFY |
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317 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
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318 | #endif |
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319 | |
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320 | #ifndef EV_USE_4HEAP |
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321 | # define EV_USE_4HEAP EV_FEATURE_DATA |
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322 | #endif |
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323 | |
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324 | #ifndef EV_HEAP_CACHE_AT |
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325 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
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326 | #endif |
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327 | |
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328 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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329 | /* which makes programs even slower. might work on other unices, too. */ |
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330 | #if EV_USE_CLOCK_SYSCALL |
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331 | # include <syscall.h> |
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332 | # ifdef SYS_clock_gettime |
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333 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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334 | # undef EV_USE_MONOTONIC |
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335 | # define EV_USE_MONOTONIC 1 |
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336 | # else |
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337 | # undef EV_USE_CLOCK_SYSCALL |
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338 | # define EV_USE_CLOCK_SYSCALL 0 |
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339 | # endif |
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340 | #endif |
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341 | |
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342 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
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343 | |
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344 | #ifdef _AIX |
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345 | /* AIX has a completely broken poll.h header */ |
151 | # undef EV_USE_POLL |
346 | # undef EV_USE_POLL |
152 | # undef EV_USE_KQUEUE |
347 | # define EV_USE_POLL 0 |
153 | #endif |
348 | #endif |
154 | |
349 | |
155 | #ifndef CLOCK_MONOTONIC |
350 | #ifndef CLOCK_MONOTONIC |
156 | # undef EV_USE_MONOTONIC |
351 | # undef EV_USE_MONOTONIC |
157 | # define EV_USE_MONOTONIC 0 |
352 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
160 | #ifndef CLOCK_REALTIME |
355 | #ifndef CLOCK_REALTIME |
161 | # undef EV_USE_REALTIME |
356 | # undef EV_USE_REALTIME |
162 | # define EV_USE_REALTIME 0 |
357 | # define EV_USE_REALTIME 0 |
163 | #endif |
358 | #endif |
164 | |
359 | |
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360 | #if !EV_STAT_ENABLE |
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361 | # undef EV_USE_INOTIFY |
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362 | # define EV_USE_INOTIFY 0 |
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363 | #endif |
|
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364 | |
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365 | #if !EV_USE_NANOSLEEP |
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366 | # ifndef _WIN32 |
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367 | # include <sys/select.h> |
|
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368 | # endif |
|
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369 | #endif |
|
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370 | |
|
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371 | #if EV_USE_INOTIFY |
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372 | # include <sys/utsname.h> |
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373 | # include <sys/statfs.h> |
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374 | # include <sys/inotify.h> |
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375 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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376 | # ifndef IN_DONT_FOLLOW |
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377 | # undef EV_USE_INOTIFY |
|
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378 | # define EV_USE_INOTIFY 0 |
|
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379 | # endif |
|
|
380 | #endif |
|
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381 | |
165 | #if EV_SELECT_IS_WINSOCKET |
382 | #if EV_SELECT_IS_WINSOCKET |
166 | # include <winsock.h> |
383 | # include <winsock.h> |
167 | #endif |
384 | #endif |
168 | |
385 | |
|
|
386 | #if EV_USE_EVENTFD |
|
|
387 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
388 | # include <stdint.h> |
|
|
389 | # ifndef EFD_NONBLOCK |
|
|
390 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
391 | # endif |
|
|
392 | # ifndef EFD_CLOEXEC |
|
|
393 | # ifdef O_CLOEXEC |
|
|
394 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
395 | # else |
|
|
396 | # define EFD_CLOEXEC 02000000 |
|
|
397 | # endif |
|
|
398 | # endif |
|
|
399 | # ifdef __cplusplus |
|
|
400 | extern "C" { |
|
|
401 | # endif |
|
|
402 | int (eventfd) (unsigned int initval, int flags); |
|
|
403 | # ifdef __cplusplus |
|
|
404 | } |
|
|
405 | # endif |
|
|
406 | #endif |
|
|
407 | |
|
|
408 | #if EV_USE_SIGNALFD |
|
|
409 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
410 | # include <stdint.h> |
|
|
411 | # ifndef SFD_NONBLOCK |
|
|
412 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
413 | # endif |
|
|
414 | # ifndef SFD_CLOEXEC |
|
|
415 | # ifdef O_CLOEXEC |
|
|
416 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
417 | # else |
|
|
418 | # define SFD_CLOEXEC 02000000 |
|
|
419 | # endif |
|
|
420 | # endif |
|
|
421 | # ifdef __cplusplus |
|
|
422 | extern "C" { |
|
|
423 | # endif |
|
|
424 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
425 | |
|
|
426 | struct signalfd_siginfo |
|
|
427 | { |
|
|
428 | uint32_t ssi_signo; |
|
|
429 | char pad[128 - sizeof (uint32_t)]; |
|
|
430 | }; |
|
|
431 | # ifdef __cplusplus |
|
|
432 | } |
|
|
433 | # endif |
|
|
434 | #endif |
|
|
435 | |
|
|
436 | |
169 | /**/ |
437 | /**/ |
|
|
438 | |
|
|
439 | #if EV_VERIFY >= 3 |
|
|
440 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
441 | #else |
|
|
442 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
443 | #endif |
|
|
444 | |
|
|
445 | /* |
|
|
446 | * This is used to avoid floating point rounding problems. |
|
|
447 | * It is added to ev_rt_now when scheduling periodics |
|
|
448 | * to ensure progress, time-wise, even when rounding |
|
|
449 | * errors are against us. |
|
|
450 | * This value is good at least till the year 4000. |
|
|
451 | * Better solutions welcome. |
|
|
452 | */ |
|
|
453 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
170 | |
454 | |
171 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
455 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
172 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
456 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
173 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
174 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
|
|
175 | |
457 | |
176 | #ifdef EV_H |
|
|
177 | # include EV_H |
|
|
178 | #else |
|
|
179 | # include "ev.h" |
|
|
180 | #endif |
|
|
181 | |
|
|
182 | #if __GNUC__ >= 3 |
458 | #if __GNUC__ >= 4 |
183 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
459 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
184 | # define inline static inline |
460 | # define noinline __attribute__ ((noinline)) |
185 | #else |
461 | #else |
186 | # define expect(expr,value) (expr) |
462 | # define expect(expr,value) (expr) |
187 | # define inline static |
463 | # define noinline |
|
|
464 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
465 | # define inline |
|
|
466 | # endif |
188 | #endif |
467 | #endif |
189 | |
468 | |
190 | #define expect_false(expr) expect ((expr) != 0, 0) |
469 | #define expect_false(expr) expect ((expr) != 0, 0) |
191 | #define expect_true(expr) expect ((expr) != 0, 1) |
470 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
471 | #define inline_size static inline |
192 | |
472 | |
|
|
473 | #if EV_FEATURE_CODE |
|
|
474 | # define inline_speed static inline |
|
|
475 | #else |
|
|
476 | # define inline_speed static noinline |
|
|
477 | #endif |
|
|
478 | |
193 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
479 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
480 | |
|
|
481 | #if EV_MINPRI == EV_MAXPRI |
|
|
482 | # define ABSPRI(w) (((W)w), 0) |
|
|
483 | #else |
194 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
484 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
485 | #endif |
195 | |
486 | |
196 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
487 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
197 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
488 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
198 | |
489 | |
199 | typedef struct ev_watcher *W; |
490 | typedef ev_watcher *W; |
200 | typedef struct ev_watcher_list *WL; |
491 | typedef ev_watcher_list *WL; |
201 | typedef struct ev_watcher_time *WT; |
492 | typedef ev_watcher_time *WT; |
202 | |
493 | |
|
|
494 | #define ev_active(w) ((W)(w))->active |
|
|
495 | #define ev_at(w) ((WT)(w))->at |
|
|
496 | |
|
|
497 | #if EV_USE_REALTIME |
|
|
498 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
499 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
500 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
501 | #endif |
|
|
502 | |
|
|
503 | #if EV_USE_MONOTONIC |
203 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
504 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
505 | #endif |
|
|
506 | |
|
|
507 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
508 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
509 | #endif |
|
|
510 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
511 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
512 | #endif |
|
|
513 | #ifndef EV_WIN32_CLOSE_FD |
|
|
514 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
515 | #endif |
204 | |
516 | |
205 | #ifdef _WIN32 |
517 | #ifdef _WIN32 |
206 | # include "ev_win32.c" |
518 | # include "ev_win32.c" |
207 | #endif |
519 | #endif |
208 | |
520 | |
209 | /*****************************************************************************/ |
521 | /*****************************************************************************/ |
210 | |
522 | |
|
|
523 | #if EV_AVOID_STDIO |
|
|
524 | static void noinline |
|
|
525 | ev_printerr (const char *msg) |
|
|
526 | { |
|
|
527 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
528 | } |
|
|
529 | #endif |
|
|
530 | |
211 | static void (*syserr_cb)(const char *msg); |
531 | static void (*syserr_cb)(const char *msg); |
212 | |
532 | |
|
|
533 | void |
213 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
534 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
214 | { |
535 | { |
215 | syserr_cb = cb; |
536 | syserr_cb = cb; |
216 | } |
537 | } |
217 | |
538 | |
218 | static void |
539 | static void noinline |
219 | syserr (const char *msg) |
540 | ev_syserr (const char *msg) |
220 | { |
541 | { |
221 | if (!msg) |
542 | if (!msg) |
222 | msg = "(libev) system error"; |
543 | msg = "(libev) system error"; |
223 | |
544 | |
224 | if (syserr_cb) |
545 | if (syserr_cb) |
225 | syserr_cb (msg); |
546 | syserr_cb (msg); |
226 | else |
547 | else |
227 | { |
548 | { |
|
|
549 | #if EV_AVOID_STDIO |
|
|
550 | const char *err = strerror (errno); |
|
|
551 | |
|
|
552 | ev_printerr (msg); |
|
|
553 | ev_printerr (": "); |
|
|
554 | ev_printerr (err); |
|
|
555 | ev_printerr ("\n"); |
|
|
556 | #else |
228 | perror (msg); |
557 | perror (msg); |
|
|
558 | #endif |
229 | abort (); |
559 | abort (); |
230 | } |
560 | } |
231 | } |
561 | } |
232 | |
562 | |
|
|
563 | static void * |
|
|
564 | ev_realloc_emul (void *ptr, long size) |
|
|
565 | { |
|
|
566 | #if __GLIBC__ |
|
|
567 | return realloc (ptr, size); |
|
|
568 | #else |
|
|
569 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
570 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
571 | * the single unix specification, so work around them here. |
|
|
572 | */ |
|
|
573 | |
|
|
574 | if (size) |
|
|
575 | return realloc (ptr, size); |
|
|
576 | |
|
|
577 | free (ptr); |
|
|
578 | return 0; |
|
|
579 | #endif |
|
|
580 | } |
|
|
581 | |
233 | static void *(*alloc)(void *ptr, long size); |
582 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
234 | |
583 | |
|
|
584 | void |
235 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
585 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
236 | { |
586 | { |
237 | alloc = cb; |
587 | alloc = cb; |
238 | } |
588 | } |
239 | |
589 | |
240 | static void * |
590 | inline_speed void * |
241 | ev_realloc (void *ptr, long size) |
591 | ev_realloc (void *ptr, long size) |
242 | { |
592 | { |
243 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
593 | ptr = alloc (ptr, size); |
244 | |
594 | |
245 | if (!ptr && size) |
595 | if (!ptr && size) |
246 | { |
596 | { |
|
|
597 | #if EV_AVOID_STDIO |
|
|
598 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
599 | #else |
247 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
600 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
601 | #endif |
248 | abort (); |
602 | abort (); |
249 | } |
603 | } |
250 | |
604 | |
251 | return ptr; |
605 | return ptr; |
252 | } |
606 | } |
… | |
… | |
254 | #define ev_malloc(size) ev_realloc (0, (size)) |
608 | #define ev_malloc(size) ev_realloc (0, (size)) |
255 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
609 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
256 | |
610 | |
257 | /*****************************************************************************/ |
611 | /*****************************************************************************/ |
258 | |
612 | |
|
|
613 | /* set in reify when reification needed */ |
|
|
614 | #define EV_ANFD_REIFY 1 |
|
|
615 | |
|
|
616 | /* file descriptor info structure */ |
259 | typedef struct |
617 | typedef struct |
260 | { |
618 | { |
261 | WL head; |
619 | WL head; |
262 | unsigned char events; |
620 | unsigned char events; /* the events watched for */ |
|
|
621 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
622 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
263 | unsigned char reify; |
623 | unsigned char unused; |
|
|
624 | #if EV_USE_EPOLL |
|
|
625 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
626 | #endif |
264 | #if EV_SELECT_IS_WINSOCKET |
627 | #if EV_SELECT_IS_WINSOCKET |
265 | SOCKET handle; |
628 | SOCKET handle; |
266 | #endif |
629 | #endif |
267 | } ANFD; |
630 | } ANFD; |
268 | |
631 | |
|
|
632 | /* stores the pending event set for a given watcher */ |
269 | typedef struct |
633 | typedef struct |
270 | { |
634 | { |
271 | W w; |
635 | W w; |
272 | int events; |
636 | int events; /* the pending event set for the given watcher */ |
273 | } ANPENDING; |
637 | } ANPENDING; |
|
|
638 | |
|
|
639 | #if EV_USE_INOTIFY |
|
|
640 | /* hash table entry per inotify-id */ |
|
|
641 | typedef struct |
|
|
642 | { |
|
|
643 | WL head; |
|
|
644 | } ANFS; |
|
|
645 | #endif |
|
|
646 | |
|
|
647 | /* Heap Entry */ |
|
|
648 | #if EV_HEAP_CACHE_AT |
|
|
649 | /* a heap element */ |
|
|
650 | typedef struct { |
|
|
651 | ev_tstamp at; |
|
|
652 | WT w; |
|
|
653 | } ANHE; |
|
|
654 | |
|
|
655 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
656 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
657 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
658 | #else |
|
|
659 | /* a heap element */ |
|
|
660 | typedef WT ANHE; |
|
|
661 | |
|
|
662 | #define ANHE_w(he) (he) |
|
|
663 | #define ANHE_at(he) (he)->at |
|
|
664 | #define ANHE_at_cache(he) |
|
|
665 | #endif |
274 | |
666 | |
275 | #if EV_MULTIPLICITY |
667 | #if EV_MULTIPLICITY |
276 | |
668 | |
277 | struct ev_loop |
669 | struct ev_loop |
278 | { |
670 | { |
… | |
… | |
296 | |
688 | |
297 | static int ev_default_loop_ptr; |
689 | static int ev_default_loop_ptr; |
298 | |
690 | |
299 | #endif |
691 | #endif |
300 | |
692 | |
|
|
693 | #if EV_FEATURE_API |
|
|
694 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
695 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
696 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
697 | #else |
|
|
698 | # define EV_RELEASE_CB (void)0 |
|
|
699 | # define EV_ACQUIRE_CB (void)0 |
|
|
700 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
701 | #endif |
|
|
702 | |
|
|
703 | #define EVUNLOOP_RECURSE 0x80 |
|
|
704 | |
301 | /*****************************************************************************/ |
705 | /*****************************************************************************/ |
302 | |
706 | |
|
|
707 | #ifndef EV_HAVE_EV_TIME |
303 | ev_tstamp |
708 | ev_tstamp |
304 | ev_time (void) |
709 | ev_time (void) |
305 | { |
710 | { |
306 | #if EV_USE_REALTIME |
711 | #if EV_USE_REALTIME |
|
|
712 | if (expect_true (have_realtime)) |
|
|
713 | { |
307 | struct timespec ts; |
714 | struct timespec ts; |
308 | clock_gettime (CLOCK_REALTIME, &ts); |
715 | clock_gettime (CLOCK_REALTIME, &ts); |
309 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
716 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
310 | #else |
717 | } |
|
|
718 | #endif |
|
|
719 | |
311 | struct timeval tv; |
720 | struct timeval tv; |
312 | gettimeofday (&tv, 0); |
721 | gettimeofday (&tv, 0); |
313 | return tv.tv_sec + tv.tv_usec * 1e-6; |
722 | return tv.tv_sec + tv.tv_usec * 1e-6; |
314 | #endif |
|
|
315 | } |
723 | } |
|
|
724 | #endif |
316 | |
725 | |
317 | inline ev_tstamp |
726 | inline_size ev_tstamp |
318 | get_clock (void) |
727 | get_clock (void) |
319 | { |
728 | { |
320 | #if EV_USE_MONOTONIC |
729 | #if EV_USE_MONOTONIC |
321 | if (expect_true (have_monotonic)) |
730 | if (expect_true (have_monotonic)) |
322 | { |
731 | { |
… | |
… | |
335 | { |
744 | { |
336 | return ev_rt_now; |
745 | return ev_rt_now; |
337 | } |
746 | } |
338 | #endif |
747 | #endif |
339 | |
748 | |
340 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
749 | void |
|
|
750 | ev_sleep (ev_tstamp delay) |
|
|
751 | { |
|
|
752 | if (delay > 0.) |
|
|
753 | { |
|
|
754 | #if EV_USE_NANOSLEEP |
|
|
755 | struct timespec ts; |
|
|
756 | |
|
|
757 | ts.tv_sec = (time_t)delay; |
|
|
758 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
759 | |
|
|
760 | nanosleep (&ts, 0); |
|
|
761 | #elif defined(_WIN32) |
|
|
762 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
763 | #else |
|
|
764 | struct timeval tv; |
|
|
765 | |
|
|
766 | tv.tv_sec = (time_t)delay; |
|
|
767 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
768 | |
|
|
769 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
770 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
771 | /* by older ones */ |
|
|
772 | select (0, 0, 0, 0, &tv); |
|
|
773 | #endif |
|
|
774 | } |
|
|
775 | } |
|
|
776 | |
|
|
777 | /*****************************************************************************/ |
|
|
778 | |
|
|
779 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
780 | |
|
|
781 | /* find a suitable new size for the given array, */ |
|
|
782 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
783 | inline_size int |
|
|
784 | array_nextsize (int elem, int cur, int cnt) |
|
|
785 | { |
|
|
786 | int ncur = cur + 1; |
|
|
787 | |
|
|
788 | do |
|
|
789 | ncur <<= 1; |
|
|
790 | while (cnt > ncur); |
|
|
791 | |
|
|
792 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
793 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
794 | { |
|
|
795 | ncur *= elem; |
|
|
796 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
797 | ncur = ncur - sizeof (void *) * 4; |
|
|
798 | ncur /= elem; |
|
|
799 | } |
|
|
800 | |
|
|
801 | return ncur; |
|
|
802 | } |
|
|
803 | |
|
|
804 | static noinline void * |
|
|
805 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
806 | { |
|
|
807 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
808 | return ev_realloc (base, elem * *cur); |
|
|
809 | } |
|
|
810 | |
|
|
811 | #define array_init_zero(base,count) \ |
|
|
812 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
341 | |
813 | |
342 | #define array_needsize(type,base,cur,cnt,init) \ |
814 | #define array_needsize(type,base,cur,cnt,init) \ |
343 | if (expect_false ((cnt) > cur)) \ |
815 | if (expect_false ((cnt) > (cur))) \ |
344 | { \ |
816 | { \ |
345 | int newcnt = cur; \ |
817 | int ocur_ = (cur); \ |
346 | do \ |
818 | (base) = (type *)array_realloc \ |
347 | { \ |
819 | (sizeof (type), (base), &(cur), (cnt)); \ |
348 | newcnt = array_roundsize (type, newcnt << 1); \ |
820 | init ((base) + (ocur_), (cur) - ocur_); \ |
349 | } \ |
|
|
350 | while ((cnt) > newcnt); \ |
|
|
351 | \ |
|
|
352 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
353 | init (base + cur, newcnt - cur); \ |
|
|
354 | cur = newcnt; \ |
|
|
355 | } |
821 | } |
356 | |
822 | |
|
|
823 | #if 0 |
357 | #define array_slim(type,stem) \ |
824 | #define array_slim(type,stem) \ |
358 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
825 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
359 | { \ |
826 | { \ |
360 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
827 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
361 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
828 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
362 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
829 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
363 | } |
830 | } |
|
|
831 | #endif |
364 | |
832 | |
365 | #define array_free(stem, idx) \ |
833 | #define array_free(stem, idx) \ |
366 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
834 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
367 | |
835 | |
368 | /*****************************************************************************/ |
836 | /*****************************************************************************/ |
369 | |
837 | |
370 | static void |
838 | /* dummy callback for pending events */ |
371 | anfds_init (ANFD *base, int count) |
839 | static void noinline |
|
|
840 | pendingcb (EV_P_ ev_prepare *w, int revents) |
372 | { |
841 | { |
373 | while (count--) |
|
|
374 | { |
|
|
375 | base->head = 0; |
|
|
376 | base->events = EV_NONE; |
|
|
377 | base->reify = 0; |
|
|
378 | |
|
|
379 | ++base; |
|
|
380 | } |
|
|
381 | } |
842 | } |
382 | |
843 | |
383 | void |
844 | void noinline |
384 | ev_feed_event (EV_P_ void *w, int revents) |
845 | ev_feed_event (EV_P_ void *w, int revents) |
385 | { |
846 | { |
386 | W w_ = (W)w; |
847 | W w_ = (W)w; |
|
|
848 | int pri = ABSPRI (w_); |
387 | |
849 | |
388 | if (expect_false (w_->pending)) |
850 | if (expect_false (w_->pending)) |
|
|
851 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
852 | else |
389 | { |
853 | { |
|
|
854 | w_->pending = ++pendingcnt [pri]; |
|
|
855 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
856 | pendings [pri][w_->pending - 1].w = w_; |
390 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
857 | pendings [pri][w_->pending - 1].events = revents; |
391 | return; |
|
|
392 | } |
858 | } |
393 | |
|
|
394 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
395 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
396 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
397 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
398 | } |
859 | } |
399 | |
860 | |
400 | static void |
861 | inline_speed void |
|
|
862 | feed_reverse (EV_P_ W w) |
|
|
863 | { |
|
|
864 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
865 | rfeeds [rfeedcnt++] = w; |
|
|
866 | } |
|
|
867 | |
|
|
868 | inline_size void |
|
|
869 | feed_reverse_done (EV_P_ int revents) |
|
|
870 | { |
|
|
871 | do |
|
|
872 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
873 | while (rfeedcnt); |
|
|
874 | } |
|
|
875 | |
|
|
876 | inline_speed void |
401 | queue_events (EV_P_ W *events, int eventcnt, int type) |
877 | queue_events (EV_P_ W *events, int eventcnt, int type) |
402 | { |
878 | { |
403 | int i; |
879 | int i; |
404 | |
880 | |
405 | for (i = 0; i < eventcnt; ++i) |
881 | for (i = 0; i < eventcnt; ++i) |
406 | ev_feed_event (EV_A_ events [i], type); |
882 | ev_feed_event (EV_A_ events [i], type); |
407 | } |
883 | } |
408 | |
884 | |
|
|
885 | /*****************************************************************************/ |
|
|
886 | |
409 | inline void |
887 | inline_speed void |
410 | fd_event (EV_P_ int fd, int revents) |
888 | fd_event_nocheck (EV_P_ int fd, int revents) |
411 | { |
889 | { |
412 | ANFD *anfd = anfds + fd; |
890 | ANFD *anfd = anfds + fd; |
413 | struct ev_io *w; |
891 | ev_io *w; |
414 | |
892 | |
415 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
893 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
416 | { |
894 | { |
417 | int ev = w->events & revents; |
895 | int ev = w->events & revents; |
418 | |
896 | |
419 | if (ev) |
897 | if (ev) |
420 | ev_feed_event (EV_A_ (W)w, ev); |
898 | ev_feed_event (EV_A_ (W)w, ev); |
421 | } |
899 | } |
422 | } |
900 | } |
423 | |
901 | |
|
|
902 | /* do not submit kernel events for fds that have reify set */ |
|
|
903 | /* because that means they changed while we were polling for new events */ |
|
|
904 | inline_speed void |
|
|
905 | fd_event (EV_P_ int fd, int revents) |
|
|
906 | { |
|
|
907 | ANFD *anfd = anfds + fd; |
|
|
908 | |
|
|
909 | if (expect_true (!anfd->reify)) |
|
|
910 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
911 | } |
|
|
912 | |
424 | void |
913 | void |
425 | ev_feed_fd_event (EV_P_ int fd, int revents) |
914 | ev_feed_fd_event (EV_P_ int fd, int revents) |
426 | { |
915 | { |
|
|
916 | if (fd >= 0 && fd < anfdmax) |
427 | fd_event (EV_A_ fd, revents); |
917 | fd_event_nocheck (EV_A_ fd, revents); |
428 | } |
918 | } |
429 | |
919 | |
430 | /*****************************************************************************/ |
920 | /* make sure the external fd watch events are in-sync */ |
431 | |
921 | /* with the kernel/libev internal state */ |
432 | inline void |
922 | inline_size void |
433 | fd_reify (EV_P) |
923 | fd_reify (EV_P) |
434 | { |
924 | { |
435 | int i; |
925 | int i; |
436 | |
926 | |
437 | for (i = 0; i < fdchangecnt; ++i) |
927 | for (i = 0; i < fdchangecnt; ++i) |
438 | { |
928 | { |
439 | int fd = fdchanges [i]; |
929 | int fd = fdchanges [i]; |
440 | ANFD *anfd = anfds + fd; |
930 | ANFD *anfd = anfds + fd; |
441 | struct ev_io *w; |
931 | ev_io *w; |
442 | |
932 | |
443 | int events = 0; |
933 | unsigned char events = 0; |
444 | |
934 | |
445 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
935 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
446 | events |= w->events; |
936 | events |= (unsigned char)w->events; |
447 | |
937 | |
448 | #if EV_SELECT_IS_WINSOCKET |
938 | #if EV_SELECT_IS_WINSOCKET |
449 | if (events) |
939 | if (events) |
450 | { |
940 | { |
451 | unsigned long argp; |
941 | unsigned long arg; |
452 | anfd->handle = _get_osfhandle (fd); |
942 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
453 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
943 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
454 | } |
944 | } |
455 | #endif |
945 | #endif |
456 | |
946 | |
|
|
947 | { |
|
|
948 | unsigned char o_events = anfd->events; |
|
|
949 | unsigned char o_reify = anfd->reify; |
|
|
950 | |
457 | anfd->reify = 0; |
951 | anfd->reify = 0; |
458 | |
|
|
459 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
460 | anfd->events = events; |
952 | anfd->events = events; |
|
|
953 | |
|
|
954 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
955 | backend_modify (EV_A_ fd, o_events, events); |
|
|
956 | } |
461 | } |
957 | } |
462 | |
958 | |
463 | fdchangecnt = 0; |
959 | fdchangecnt = 0; |
464 | } |
960 | } |
465 | |
961 | |
466 | static void |
962 | /* something about the given fd changed */ |
|
|
963 | inline_size void |
467 | fd_change (EV_P_ int fd) |
964 | fd_change (EV_P_ int fd, int flags) |
468 | { |
965 | { |
469 | if (expect_false (anfds [fd].reify)) |
966 | unsigned char reify = anfds [fd].reify; |
470 | return; |
|
|
471 | |
|
|
472 | anfds [fd].reify = 1; |
967 | anfds [fd].reify |= flags; |
473 | |
968 | |
|
|
969 | if (expect_true (!reify)) |
|
|
970 | { |
474 | ++fdchangecnt; |
971 | ++fdchangecnt; |
475 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
972 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
476 | fdchanges [fdchangecnt - 1] = fd; |
973 | fdchanges [fdchangecnt - 1] = fd; |
|
|
974 | } |
477 | } |
975 | } |
478 | |
976 | |
479 | static void |
977 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
978 | inline_speed void |
480 | fd_kill (EV_P_ int fd) |
979 | fd_kill (EV_P_ int fd) |
481 | { |
980 | { |
482 | struct ev_io *w; |
981 | ev_io *w; |
483 | |
982 | |
484 | while ((w = (struct ev_io *)anfds [fd].head)) |
983 | while ((w = (ev_io *)anfds [fd].head)) |
485 | { |
984 | { |
486 | ev_io_stop (EV_A_ w); |
985 | ev_io_stop (EV_A_ w); |
487 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
986 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
488 | } |
987 | } |
489 | } |
988 | } |
490 | |
989 | |
|
|
990 | /* check whether the given fd is actually valid, for error recovery */ |
491 | inline int |
991 | inline_size int |
492 | fd_valid (int fd) |
992 | fd_valid (int fd) |
493 | { |
993 | { |
494 | #ifdef _WIN32 |
994 | #ifdef _WIN32 |
495 | return _get_osfhandle (fd) != -1; |
995 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
496 | #else |
996 | #else |
497 | return fcntl (fd, F_GETFD) != -1; |
997 | return fcntl (fd, F_GETFD) != -1; |
498 | #endif |
998 | #endif |
499 | } |
999 | } |
500 | |
1000 | |
501 | /* called on EBADF to verify fds */ |
1001 | /* called on EBADF to verify fds */ |
502 | static void |
1002 | static void noinline |
503 | fd_ebadf (EV_P) |
1003 | fd_ebadf (EV_P) |
504 | { |
1004 | { |
505 | int fd; |
1005 | int fd; |
506 | |
1006 | |
507 | for (fd = 0; fd < anfdmax; ++fd) |
1007 | for (fd = 0; fd < anfdmax; ++fd) |
508 | if (anfds [fd].events) |
1008 | if (anfds [fd].events) |
509 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1009 | if (!fd_valid (fd) && errno == EBADF) |
510 | fd_kill (EV_A_ fd); |
1010 | fd_kill (EV_A_ fd); |
511 | } |
1011 | } |
512 | |
1012 | |
513 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1013 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
514 | static void |
1014 | static void noinline |
515 | fd_enomem (EV_P) |
1015 | fd_enomem (EV_P) |
516 | { |
1016 | { |
517 | int fd; |
1017 | int fd; |
518 | |
1018 | |
519 | for (fd = anfdmax; fd--; ) |
1019 | for (fd = anfdmax; fd--; ) |
520 | if (anfds [fd].events) |
1020 | if (anfds [fd].events) |
521 | { |
1021 | { |
522 | fd_kill (EV_A_ fd); |
1022 | fd_kill (EV_A_ fd); |
523 | return; |
1023 | break; |
524 | } |
1024 | } |
525 | } |
1025 | } |
526 | |
1026 | |
527 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
1027 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
528 | static void |
1028 | static void noinline |
529 | fd_rearm_all (EV_P) |
1029 | fd_rearm_all (EV_P) |
530 | { |
1030 | { |
531 | int fd; |
1031 | int fd; |
532 | |
1032 | |
533 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
534 | for (fd = 0; fd < anfdmax; ++fd) |
1033 | for (fd = 0; fd < anfdmax; ++fd) |
535 | if (anfds [fd].events) |
1034 | if (anfds [fd].events) |
536 | { |
1035 | { |
537 | anfds [fd].events = 0; |
1036 | anfds [fd].events = 0; |
538 | fd_change (EV_A_ fd); |
1037 | anfds [fd].emask = 0; |
|
|
1038 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
539 | } |
1039 | } |
540 | } |
1040 | } |
541 | |
1041 | |
542 | /*****************************************************************************/ |
1042 | /* used to prepare libev internal fd's */ |
543 | |
1043 | /* this is not fork-safe */ |
544 | static void |
|
|
545 | upheap (WT *heap, int k) |
|
|
546 | { |
|
|
547 | WT w = heap [k]; |
|
|
548 | |
|
|
549 | while (k && heap [k >> 1]->at > w->at) |
|
|
550 | { |
|
|
551 | heap [k] = heap [k >> 1]; |
|
|
552 | ((W)heap [k])->active = k + 1; |
|
|
553 | k >>= 1; |
|
|
554 | } |
|
|
555 | |
|
|
556 | heap [k] = w; |
|
|
557 | ((W)heap [k])->active = k + 1; |
|
|
558 | |
|
|
559 | } |
|
|
560 | |
|
|
561 | static void |
|
|
562 | downheap (WT *heap, int N, int k) |
|
|
563 | { |
|
|
564 | WT w = heap [k]; |
|
|
565 | |
|
|
566 | while (k < (N >> 1)) |
|
|
567 | { |
|
|
568 | int j = k << 1; |
|
|
569 | |
|
|
570 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
|
|
571 | ++j; |
|
|
572 | |
|
|
573 | if (w->at <= heap [j]->at) |
|
|
574 | break; |
|
|
575 | |
|
|
576 | heap [k] = heap [j]; |
|
|
577 | ((W)heap [k])->active = k + 1; |
|
|
578 | k = j; |
|
|
579 | } |
|
|
580 | |
|
|
581 | heap [k] = w; |
|
|
582 | ((W)heap [k])->active = k + 1; |
|
|
583 | } |
|
|
584 | |
|
|
585 | inline void |
1044 | inline_speed void |
586 | adjustheap (WT *heap, int N, int k) |
|
|
587 | { |
|
|
588 | upheap (heap, k); |
|
|
589 | downheap (heap, N, k); |
|
|
590 | } |
|
|
591 | |
|
|
592 | /*****************************************************************************/ |
|
|
593 | |
|
|
594 | typedef struct |
|
|
595 | { |
|
|
596 | WL head; |
|
|
597 | sig_atomic_t volatile gotsig; |
|
|
598 | } ANSIG; |
|
|
599 | |
|
|
600 | static ANSIG *signals; |
|
|
601 | static int signalmax; |
|
|
602 | |
|
|
603 | static int sigpipe [2]; |
|
|
604 | static sig_atomic_t volatile gotsig; |
|
|
605 | static struct ev_io sigev; |
|
|
606 | |
|
|
607 | static void |
|
|
608 | signals_init (ANSIG *base, int count) |
|
|
609 | { |
|
|
610 | while (count--) |
|
|
611 | { |
|
|
612 | base->head = 0; |
|
|
613 | base->gotsig = 0; |
|
|
614 | |
|
|
615 | ++base; |
|
|
616 | } |
|
|
617 | } |
|
|
618 | |
|
|
619 | static void |
|
|
620 | sighandler (int signum) |
|
|
621 | { |
|
|
622 | #if _WIN32 |
|
|
623 | signal (signum, sighandler); |
|
|
624 | #endif |
|
|
625 | |
|
|
626 | signals [signum - 1].gotsig = 1; |
|
|
627 | |
|
|
628 | if (!gotsig) |
|
|
629 | { |
|
|
630 | int old_errno = errno; |
|
|
631 | gotsig = 1; |
|
|
632 | write (sigpipe [1], &signum, 1); |
|
|
633 | errno = old_errno; |
|
|
634 | } |
|
|
635 | } |
|
|
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 | |
|
|
657 | static void |
|
|
658 | sigcb (EV_P_ struct ev_io *iow, int revents) |
|
|
659 | { |
|
|
660 | int signum; |
|
|
661 | |
|
|
662 | read (sigpipe [0], &revents, 1); |
|
|
663 | gotsig = 0; |
|
|
664 | |
|
|
665 | for (signum = signalmax; signum--; ) |
|
|
666 | if (signals [signum].gotsig) |
|
|
667 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
668 | } |
|
|
669 | |
|
|
670 | static void |
|
|
671 | fd_intern (int fd) |
1045 | fd_intern (int fd) |
672 | { |
1046 | { |
673 | #ifdef _WIN32 |
1047 | #ifdef _WIN32 |
674 | int arg = 1; |
1048 | unsigned long arg = 1; |
675 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1049 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
676 | #else |
1050 | #else |
677 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1051 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
678 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1052 | fcntl (fd, F_SETFL, O_NONBLOCK); |
679 | #endif |
1053 | #endif |
680 | } |
1054 | } |
681 | |
1055 | |
|
|
1056 | /*****************************************************************************/ |
|
|
1057 | |
|
|
1058 | /* |
|
|
1059 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
1060 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1061 | * the branching factor of the d-tree. |
|
|
1062 | */ |
|
|
1063 | |
|
|
1064 | /* |
|
|
1065 | * at the moment we allow libev the luxury of two heaps, |
|
|
1066 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1067 | * which is more cache-efficient. |
|
|
1068 | * the difference is about 5% with 50000+ watchers. |
|
|
1069 | */ |
|
|
1070 | #if EV_USE_4HEAP |
|
|
1071 | |
|
|
1072 | #define DHEAP 4 |
|
|
1073 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1074 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1075 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1076 | |
|
|
1077 | /* away from the root */ |
|
|
1078 | inline_speed void |
|
|
1079 | downheap (ANHE *heap, int N, int k) |
|
|
1080 | { |
|
|
1081 | ANHE he = heap [k]; |
|
|
1082 | ANHE *E = heap + N + HEAP0; |
|
|
1083 | |
|
|
1084 | for (;;) |
|
|
1085 | { |
|
|
1086 | ev_tstamp minat; |
|
|
1087 | ANHE *minpos; |
|
|
1088 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1089 | |
|
|
1090 | /* find minimum child */ |
|
|
1091 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1092 | { |
|
|
1093 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1094 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1095 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1096 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1097 | } |
|
|
1098 | else if (pos < E) |
|
|
1099 | { |
|
|
1100 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1101 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1102 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1103 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1104 | } |
|
|
1105 | else |
|
|
1106 | break; |
|
|
1107 | |
|
|
1108 | if (ANHE_at (he) <= minat) |
|
|
1109 | break; |
|
|
1110 | |
|
|
1111 | heap [k] = *minpos; |
|
|
1112 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1113 | |
|
|
1114 | k = minpos - heap; |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | heap [k] = he; |
|
|
1118 | ev_active (ANHE_w (he)) = k; |
|
|
1119 | } |
|
|
1120 | |
|
|
1121 | #else /* 4HEAP */ |
|
|
1122 | |
|
|
1123 | #define HEAP0 1 |
|
|
1124 | #define HPARENT(k) ((k) >> 1) |
|
|
1125 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1126 | |
|
|
1127 | /* away from the root */ |
|
|
1128 | inline_speed void |
|
|
1129 | downheap (ANHE *heap, int N, int k) |
|
|
1130 | { |
|
|
1131 | ANHE he = heap [k]; |
|
|
1132 | |
|
|
1133 | for (;;) |
|
|
1134 | { |
|
|
1135 | int c = k << 1; |
|
|
1136 | |
|
|
1137 | if (c >= N + HEAP0) |
|
|
1138 | break; |
|
|
1139 | |
|
|
1140 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1141 | ? 1 : 0; |
|
|
1142 | |
|
|
1143 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1144 | break; |
|
|
1145 | |
|
|
1146 | heap [k] = heap [c]; |
|
|
1147 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1148 | |
|
|
1149 | k = c; |
|
|
1150 | } |
|
|
1151 | |
|
|
1152 | heap [k] = he; |
|
|
1153 | ev_active (ANHE_w (he)) = k; |
|
|
1154 | } |
|
|
1155 | #endif |
|
|
1156 | |
|
|
1157 | /* towards the root */ |
|
|
1158 | inline_speed void |
|
|
1159 | upheap (ANHE *heap, int k) |
|
|
1160 | { |
|
|
1161 | ANHE he = heap [k]; |
|
|
1162 | |
|
|
1163 | for (;;) |
|
|
1164 | { |
|
|
1165 | int p = HPARENT (k); |
|
|
1166 | |
|
|
1167 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1168 | break; |
|
|
1169 | |
|
|
1170 | heap [k] = heap [p]; |
|
|
1171 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1172 | k = p; |
|
|
1173 | } |
|
|
1174 | |
|
|
1175 | heap [k] = he; |
|
|
1176 | ev_active (ANHE_w (he)) = k; |
|
|
1177 | } |
|
|
1178 | |
|
|
1179 | /* move an element suitably so it is in a correct place */ |
|
|
1180 | inline_size void |
|
|
1181 | adjustheap (ANHE *heap, int N, int k) |
|
|
1182 | { |
|
|
1183 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1184 | upheap (heap, k); |
|
|
1185 | else |
|
|
1186 | downheap (heap, N, k); |
|
|
1187 | } |
|
|
1188 | |
|
|
1189 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1190 | inline_size void |
|
|
1191 | reheap (ANHE *heap, int N) |
|
|
1192 | { |
|
|
1193 | int i; |
|
|
1194 | |
|
|
1195 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1196 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1197 | for (i = 0; i < N; ++i) |
|
|
1198 | upheap (heap, i + HEAP0); |
|
|
1199 | } |
|
|
1200 | |
|
|
1201 | /*****************************************************************************/ |
|
|
1202 | |
|
|
1203 | /* associate signal watchers to a signal signal */ |
|
|
1204 | typedef struct |
|
|
1205 | { |
|
|
1206 | EV_ATOMIC_T pending; |
|
|
1207 | #if EV_MULTIPLICITY |
|
|
1208 | EV_P; |
|
|
1209 | #endif |
|
|
1210 | WL head; |
|
|
1211 | } ANSIG; |
|
|
1212 | |
|
|
1213 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1214 | |
|
|
1215 | /*****************************************************************************/ |
|
|
1216 | |
|
|
1217 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1218 | |
|
|
1219 | static void noinline |
|
|
1220 | evpipe_init (EV_P) |
|
|
1221 | { |
|
|
1222 | if (!ev_is_active (&pipe_w)) |
|
|
1223 | { |
|
|
1224 | # if EV_USE_EVENTFD |
|
|
1225 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1226 | if (evfd < 0 && errno == EINVAL) |
|
|
1227 | evfd = eventfd (0, 0); |
|
|
1228 | |
|
|
1229 | if (evfd >= 0) |
|
|
1230 | { |
|
|
1231 | evpipe [0] = -1; |
|
|
1232 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1233 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1234 | } |
|
|
1235 | else |
|
|
1236 | # endif |
|
|
1237 | { |
|
|
1238 | while (pipe (evpipe)) |
|
|
1239 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1240 | |
|
|
1241 | fd_intern (evpipe [0]); |
|
|
1242 | fd_intern (evpipe [1]); |
|
|
1243 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1244 | } |
|
|
1245 | |
|
|
1246 | ev_io_start (EV_A_ &pipe_w); |
|
|
1247 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1248 | } |
|
|
1249 | } |
|
|
1250 | |
|
|
1251 | inline_size void |
|
|
1252 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1253 | { |
|
|
1254 | if (!*flag) |
|
|
1255 | { |
|
|
1256 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1257 | char dummy; |
|
|
1258 | |
|
|
1259 | *flag = 1; |
|
|
1260 | |
|
|
1261 | #if EV_USE_EVENTFD |
|
|
1262 | if (evfd >= 0) |
|
|
1263 | { |
|
|
1264 | uint64_t counter = 1; |
|
|
1265 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1266 | } |
|
|
1267 | else |
|
|
1268 | #endif |
|
|
1269 | write (evpipe [1], &dummy, 1); |
|
|
1270 | |
|
|
1271 | errno = old_errno; |
|
|
1272 | } |
|
|
1273 | } |
|
|
1274 | |
|
|
1275 | /* called whenever the libev signal pipe */ |
|
|
1276 | /* got some events (signal, async) */ |
682 | static void |
1277 | static void |
683 | siginit (EV_P) |
1278 | pipecb (EV_P_ ev_io *iow, int revents) |
684 | { |
1279 | { |
685 | fd_intern (sigpipe [0]); |
1280 | int i; |
686 | fd_intern (sigpipe [1]); |
|
|
687 | |
1281 | |
688 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
1282 | #if EV_USE_EVENTFD |
689 | ev_io_start (EV_A_ &sigev); |
1283 | if (evfd >= 0) |
690 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1284 | { |
|
|
1285 | uint64_t counter; |
|
|
1286 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1287 | } |
|
|
1288 | else |
|
|
1289 | #endif |
|
|
1290 | { |
|
|
1291 | char dummy; |
|
|
1292 | read (evpipe [0], &dummy, 1); |
|
|
1293 | } |
|
|
1294 | |
|
|
1295 | if (sig_pending) |
|
|
1296 | { |
|
|
1297 | sig_pending = 0; |
|
|
1298 | |
|
|
1299 | for (i = EV_NSIG - 1; i--; ) |
|
|
1300 | if (expect_false (signals [i].pending)) |
|
|
1301 | ev_feed_signal_event (EV_A_ i + 1); |
|
|
1302 | } |
|
|
1303 | |
|
|
1304 | #if EV_ASYNC_ENABLE |
|
|
1305 | if (async_pending) |
|
|
1306 | { |
|
|
1307 | async_pending = 0; |
|
|
1308 | |
|
|
1309 | for (i = asynccnt; i--; ) |
|
|
1310 | if (asyncs [i]->sent) |
|
|
1311 | { |
|
|
1312 | asyncs [i]->sent = 0; |
|
|
1313 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1314 | } |
|
|
1315 | } |
|
|
1316 | #endif |
691 | } |
1317 | } |
692 | |
1318 | |
693 | /*****************************************************************************/ |
1319 | /*****************************************************************************/ |
694 | |
1320 | |
695 | static struct ev_child *childs [PID_HASHSIZE]; |
1321 | static void |
|
|
1322 | ev_sighandler (int signum) |
|
|
1323 | { |
|
|
1324 | #if EV_MULTIPLICITY |
|
|
1325 | EV_P = signals [signum - 1].loop; |
|
|
1326 | #endif |
696 | |
1327 | |
697 | #ifndef _WIN32 |
1328 | #ifdef _WIN32 |
|
|
1329 | signal (signum, ev_sighandler); |
|
|
1330 | #endif |
698 | |
1331 | |
|
|
1332 | signals [signum - 1].pending = 1; |
|
|
1333 | evpipe_write (EV_A_ &sig_pending); |
|
|
1334 | } |
|
|
1335 | |
|
|
1336 | void noinline |
|
|
1337 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1338 | { |
|
|
1339 | WL w; |
|
|
1340 | |
|
|
1341 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1342 | return; |
|
|
1343 | |
|
|
1344 | --signum; |
|
|
1345 | |
|
|
1346 | #if EV_MULTIPLICITY |
|
|
1347 | /* it is permissible to try to feed a signal to the wrong loop */ |
|
|
1348 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
|
|
1349 | |
|
|
1350 | if (expect_false (signals [signum].loop != EV_A)) |
|
|
1351 | return; |
|
|
1352 | #endif |
|
|
1353 | |
|
|
1354 | signals [signum].pending = 0; |
|
|
1355 | |
|
|
1356 | for (w = signals [signum].head; w; w = w->next) |
|
|
1357 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1358 | } |
|
|
1359 | |
|
|
1360 | #if EV_USE_SIGNALFD |
|
|
1361 | static void |
|
|
1362 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1363 | { |
|
|
1364 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1365 | |
|
|
1366 | for (;;) |
|
|
1367 | { |
|
|
1368 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1369 | |
|
|
1370 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1371 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1372 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1373 | |
|
|
1374 | if (res < (ssize_t)sizeof (si)) |
|
|
1375 | break; |
|
|
1376 | } |
|
|
1377 | } |
|
|
1378 | #endif |
|
|
1379 | |
|
|
1380 | #endif |
|
|
1381 | |
|
|
1382 | /*****************************************************************************/ |
|
|
1383 | |
|
|
1384 | #if EV_CHILD_ENABLE |
|
|
1385 | static WL childs [EV_PID_HASHSIZE]; |
|
|
1386 | |
699 | static struct ev_signal childev; |
1387 | static ev_signal childev; |
|
|
1388 | |
|
|
1389 | #ifndef WIFCONTINUED |
|
|
1390 | # define WIFCONTINUED(status) 0 |
|
|
1391 | #endif |
|
|
1392 | |
|
|
1393 | /* handle a single child status event */ |
|
|
1394 | inline_speed void |
|
|
1395 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1396 | { |
|
|
1397 | ev_child *w; |
|
|
1398 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1399 | |
|
|
1400 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1401 | { |
|
|
1402 | if ((w->pid == pid || !w->pid) |
|
|
1403 | && (!traced || (w->flags & 1))) |
|
|
1404 | { |
|
|
1405 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1406 | w->rpid = pid; |
|
|
1407 | w->rstatus = status; |
|
|
1408 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1409 | } |
|
|
1410 | } |
|
|
1411 | } |
700 | |
1412 | |
701 | #ifndef WCONTINUED |
1413 | #ifndef WCONTINUED |
702 | # define WCONTINUED 0 |
1414 | # define WCONTINUED 0 |
703 | #endif |
1415 | #endif |
704 | |
1416 | |
|
|
1417 | /* called on sigchld etc., calls waitpid */ |
705 | static void |
1418 | static void |
706 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
707 | { |
|
|
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) |
1419 | childcb (EV_P_ ev_signal *sw, int revents) |
722 | { |
1420 | { |
723 | int pid, status; |
1421 | int pid, status; |
724 | |
1422 | |
|
|
1423 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
725 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1424 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
726 | { |
1425 | if (!WCONTINUED |
|
|
1426 | || errno != EINVAL |
|
|
1427 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1428 | return; |
|
|
1429 | |
727 | /* make sure we are called again until all childs have been reaped */ |
1430 | /* make sure we are called again until all children have been reaped */ |
|
|
1431 | /* we need to do it this way so that the callback gets called before we continue */ |
728 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1432 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
729 | |
1433 | |
730 | child_reap (EV_A_ sw, pid, pid, status); |
1434 | child_reap (EV_A_ pid, pid, status); |
|
|
1435 | if ((EV_PID_HASHSIZE) > 1) |
731 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
1436 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
732 | } |
|
|
733 | } |
1437 | } |
734 | |
1438 | |
735 | #endif |
1439 | #endif |
736 | |
1440 | |
737 | /*****************************************************************************/ |
1441 | /*****************************************************************************/ |
… | |
… | |
763 | { |
1467 | { |
764 | return EV_VERSION_MINOR; |
1468 | return EV_VERSION_MINOR; |
765 | } |
1469 | } |
766 | |
1470 | |
767 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1471 | /* return true if we are running with elevated privileges and should ignore env variables */ |
768 | static int |
1472 | int inline_size |
769 | enable_secure (void) |
1473 | enable_secure (void) |
770 | { |
1474 | { |
771 | #ifdef _WIN32 |
1475 | #ifdef _WIN32 |
772 | return 0; |
1476 | return 0; |
773 | #else |
1477 | #else |
… | |
… | |
775 | || getgid () != getegid (); |
1479 | || getgid () != getegid (); |
776 | #endif |
1480 | #endif |
777 | } |
1481 | } |
778 | |
1482 | |
779 | unsigned int |
1483 | unsigned int |
|
|
1484 | ev_supported_backends (void) |
|
|
1485 | { |
|
|
1486 | unsigned int flags = 0; |
|
|
1487 | |
|
|
1488 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
1489 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1490 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1491 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1492 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1493 | |
|
|
1494 | return flags; |
|
|
1495 | } |
|
|
1496 | |
|
|
1497 | unsigned int |
|
|
1498 | ev_recommended_backends (void) |
|
|
1499 | { |
|
|
1500 | unsigned int flags = ev_supported_backends (); |
|
|
1501 | |
|
|
1502 | #ifndef __NetBSD__ |
|
|
1503 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1504 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1505 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1506 | #endif |
|
|
1507 | #ifdef __APPLE__ |
|
|
1508 | /* only select works correctly on that "unix-certified" platform */ |
|
|
1509 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1510 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1511 | #endif |
|
|
1512 | #ifdef __FreeBSD__ |
|
|
1513 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1514 | #endif |
|
|
1515 | |
|
|
1516 | return flags; |
|
|
1517 | } |
|
|
1518 | |
|
|
1519 | unsigned int |
|
|
1520 | ev_embeddable_backends (void) |
|
|
1521 | { |
|
|
1522 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1523 | |
|
|
1524 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1525 | /* please fix it and tell me how to detect the fix */ |
|
|
1526 | flags &= ~EVBACKEND_EPOLL; |
|
|
1527 | |
|
|
1528 | return flags; |
|
|
1529 | } |
|
|
1530 | |
|
|
1531 | unsigned int |
|
|
1532 | ev_backend (EV_P) |
|
|
1533 | { |
|
|
1534 | return backend; |
|
|
1535 | } |
|
|
1536 | |
|
|
1537 | #if EV_FEATURE_API |
|
|
1538 | unsigned int |
|
|
1539 | ev_iteration (EV_P) |
|
|
1540 | { |
|
|
1541 | return loop_count; |
|
|
1542 | } |
|
|
1543 | |
|
|
1544 | unsigned int |
780 | ev_method (EV_P) |
1545 | ev_depth (EV_P) |
781 | { |
1546 | { |
782 | return method; |
1547 | return loop_depth; |
783 | } |
1548 | } |
784 | |
1549 | |
785 | static void |
1550 | void |
|
|
1551 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1552 | { |
|
|
1553 | io_blocktime = interval; |
|
|
1554 | } |
|
|
1555 | |
|
|
1556 | void |
|
|
1557 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1558 | { |
|
|
1559 | timeout_blocktime = interval; |
|
|
1560 | } |
|
|
1561 | |
|
|
1562 | void |
|
|
1563 | ev_set_userdata (EV_P_ void *data) |
|
|
1564 | { |
|
|
1565 | userdata = data; |
|
|
1566 | } |
|
|
1567 | |
|
|
1568 | void * |
|
|
1569 | ev_userdata (EV_P) |
|
|
1570 | { |
|
|
1571 | return userdata; |
|
|
1572 | } |
|
|
1573 | |
|
|
1574 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1575 | { |
|
|
1576 | invoke_cb = invoke_pending_cb; |
|
|
1577 | } |
|
|
1578 | |
|
|
1579 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1580 | { |
|
|
1581 | release_cb = release; |
|
|
1582 | acquire_cb = acquire; |
|
|
1583 | } |
|
|
1584 | #endif |
|
|
1585 | |
|
|
1586 | /* initialise a loop structure, must be zero-initialised */ |
|
|
1587 | static void noinline |
786 | loop_init (EV_P_ unsigned int flags) |
1588 | loop_init (EV_P_ unsigned int flags) |
787 | { |
1589 | { |
788 | if (!method) |
1590 | if (!backend) |
789 | { |
1591 | { |
|
|
1592 | #if EV_USE_REALTIME |
|
|
1593 | if (!have_realtime) |
|
|
1594 | { |
|
|
1595 | struct timespec ts; |
|
|
1596 | |
|
|
1597 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1598 | have_realtime = 1; |
|
|
1599 | } |
|
|
1600 | #endif |
|
|
1601 | |
790 | #if EV_USE_MONOTONIC |
1602 | #if EV_USE_MONOTONIC |
|
|
1603 | if (!have_monotonic) |
791 | { |
1604 | { |
792 | struct timespec ts; |
1605 | struct timespec ts; |
|
|
1606 | |
793 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1607 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
794 | have_monotonic = 1; |
1608 | have_monotonic = 1; |
795 | } |
1609 | } |
796 | #endif |
1610 | #endif |
797 | |
1611 | |
798 | ev_rt_now = ev_time (); |
1612 | /* pid check not overridable via env */ |
799 | mn_now = get_clock (); |
1613 | #ifndef _WIN32 |
800 | now_floor = mn_now; |
1614 | if (flags & EVFLAG_FORKCHECK) |
801 | rtmn_diff = ev_rt_now - mn_now; |
1615 | curpid = getpid (); |
|
|
1616 | #endif |
802 | |
1617 | |
803 | if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) |
1618 | if (!(flags & EVFLAG_NOENV) |
|
|
1619 | && !enable_secure () |
|
|
1620 | && getenv ("LIBEV_FLAGS")) |
804 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1621 | flags = atoi (getenv ("LIBEV_FLAGS")); |
805 | |
1622 | |
|
|
1623 | ev_rt_now = ev_time (); |
|
|
1624 | mn_now = get_clock (); |
|
|
1625 | now_floor = mn_now; |
|
|
1626 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1627 | #if EV_FEATURE_API |
|
|
1628 | invoke_cb = ev_invoke_pending; |
|
|
1629 | #endif |
|
|
1630 | |
|
|
1631 | io_blocktime = 0.; |
|
|
1632 | timeout_blocktime = 0.; |
|
|
1633 | backend = 0; |
|
|
1634 | backend_fd = -1; |
|
|
1635 | sig_pending = 0; |
|
|
1636 | #if EV_ASYNC_ENABLE |
|
|
1637 | async_pending = 0; |
|
|
1638 | #endif |
|
|
1639 | #if EV_USE_INOTIFY |
|
|
1640 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
1641 | #endif |
|
|
1642 | #if EV_USE_SIGNALFD |
|
|
1643 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
1644 | #endif |
|
|
1645 | |
806 | if (!(flags & 0x0000ffff)) |
1646 | if (!(flags & 0x0000ffffU)) |
807 | flags |= 0x0000ffff; |
1647 | flags |= ev_recommended_backends (); |
808 | |
1648 | |
809 | method = 0; |
|
|
810 | #if EV_USE_PORT |
1649 | #if EV_USE_PORT |
811 | if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); |
1650 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
812 | #endif |
1651 | #endif |
813 | #if EV_USE_KQUEUE |
1652 | #if EV_USE_KQUEUE |
814 | if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); |
1653 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
815 | #endif |
1654 | #endif |
816 | #if EV_USE_EPOLL |
1655 | #if EV_USE_EPOLL |
817 | if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); |
1656 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
818 | #endif |
1657 | #endif |
819 | #if EV_USE_POLL |
1658 | #if EV_USE_POLL |
820 | if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); |
1659 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
821 | #endif |
1660 | #endif |
822 | #if EV_USE_SELECT |
1661 | #if EV_USE_SELECT |
823 | if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); |
1662 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
824 | #endif |
1663 | #endif |
825 | |
1664 | |
|
|
1665 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1666 | |
|
|
1667 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
826 | ev_init (&sigev, sigcb); |
1668 | ev_init (&pipe_w, pipecb); |
827 | ev_set_priority (&sigev, EV_MAXPRI); |
1669 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1670 | #endif |
828 | } |
1671 | } |
829 | } |
1672 | } |
830 | |
1673 | |
831 | static void |
1674 | /* free up a loop structure */ |
|
|
1675 | static void noinline |
832 | loop_destroy (EV_P) |
1676 | loop_destroy (EV_P) |
833 | { |
1677 | { |
834 | int i; |
1678 | int i; |
835 | |
1679 | |
|
|
1680 | if (ev_is_active (&pipe_w)) |
|
|
1681 | { |
|
|
1682 | /*ev_ref (EV_A);*/ |
|
|
1683 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
|
|
1684 | |
|
|
1685 | #if EV_USE_EVENTFD |
|
|
1686 | if (evfd >= 0) |
|
|
1687 | close (evfd); |
|
|
1688 | #endif |
|
|
1689 | |
|
|
1690 | if (evpipe [0] >= 0) |
|
|
1691 | { |
|
|
1692 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1693 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1694 | } |
|
|
1695 | } |
|
|
1696 | |
|
|
1697 | #if EV_USE_SIGNALFD |
|
|
1698 | if (ev_is_active (&sigfd_w)) |
|
|
1699 | close (sigfd); |
|
|
1700 | #endif |
|
|
1701 | |
|
|
1702 | #if EV_USE_INOTIFY |
|
|
1703 | if (fs_fd >= 0) |
|
|
1704 | close (fs_fd); |
|
|
1705 | #endif |
|
|
1706 | |
|
|
1707 | if (backend_fd >= 0) |
|
|
1708 | close (backend_fd); |
|
|
1709 | |
836 | #if EV_USE_PORT |
1710 | #if EV_USE_PORT |
837 | if (method == EVMETHOD_PORT ) port_destroy (EV_A); |
1711 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
838 | #endif |
1712 | #endif |
839 | #if EV_USE_KQUEUE |
1713 | #if EV_USE_KQUEUE |
840 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1714 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
841 | #endif |
1715 | #endif |
842 | #if EV_USE_EPOLL |
1716 | #if EV_USE_EPOLL |
843 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1717 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
844 | #endif |
1718 | #endif |
845 | #if EV_USE_POLL |
1719 | #if EV_USE_POLL |
846 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1720 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
847 | #endif |
1721 | #endif |
848 | #if EV_USE_SELECT |
1722 | #if EV_USE_SELECT |
849 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1723 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
850 | #endif |
1724 | #endif |
851 | |
1725 | |
852 | for (i = NUMPRI; i--; ) |
1726 | for (i = NUMPRI; i--; ) |
|
|
1727 | { |
853 | array_free (pending, [i]); |
1728 | array_free (pending, [i]); |
|
|
1729 | #if EV_IDLE_ENABLE |
|
|
1730 | array_free (idle, [i]); |
|
|
1731 | #endif |
|
|
1732 | } |
|
|
1733 | |
|
|
1734 | ev_free (anfds); anfds = 0; anfdmax = 0; |
854 | |
1735 | |
855 | /* have to use the microsoft-never-gets-it-right macro */ |
1736 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1737 | array_free (rfeed, EMPTY); |
856 | array_free (fdchange, EMPTY0); |
1738 | array_free (fdchange, EMPTY); |
857 | array_free (timer, EMPTY0); |
1739 | array_free (timer, EMPTY); |
858 | #if EV_PERIODICS |
1740 | #if EV_PERIODIC_ENABLE |
859 | array_free (periodic, EMPTY0); |
1741 | array_free (periodic, EMPTY); |
860 | #endif |
1742 | #endif |
|
|
1743 | #if EV_FORK_ENABLE |
861 | array_free (idle, EMPTY0); |
1744 | array_free (fork, EMPTY); |
|
|
1745 | #endif |
862 | array_free (prepare, EMPTY0); |
1746 | array_free (prepare, EMPTY); |
863 | array_free (check, EMPTY0); |
1747 | array_free (check, EMPTY); |
|
|
1748 | #if EV_ASYNC_ENABLE |
|
|
1749 | array_free (async, EMPTY); |
|
|
1750 | #endif |
864 | |
1751 | |
865 | method = 0; |
1752 | backend = 0; |
866 | } |
1753 | } |
867 | |
1754 | |
868 | static void |
1755 | #if EV_USE_INOTIFY |
|
|
1756 | inline_size void infy_fork (EV_P); |
|
|
1757 | #endif |
|
|
1758 | |
|
|
1759 | inline_size void |
869 | loop_fork (EV_P) |
1760 | loop_fork (EV_P) |
870 | { |
1761 | { |
871 | #if EV_USE_PORT |
1762 | #if EV_USE_PORT |
872 | if (method == EVMETHOD_PORT ) port_fork (EV_A); |
1763 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
873 | #endif |
1764 | #endif |
874 | #if EV_USE_KQUEUE |
1765 | #if EV_USE_KQUEUE |
875 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1766 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
876 | #endif |
1767 | #endif |
877 | #if EV_USE_EPOLL |
1768 | #if EV_USE_EPOLL |
878 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1769 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
879 | #endif |
1770 | #endif |
|
|
1771 | #if EV_USE_INOTIFY |
|
|
1772 | infy_fork (EV_A); |
|
|
1773 | #endif |
880 | |
1774 | |
881 | if (ev_is_active (&sigev)) |
1775 | if (ev_is_active (&pipe_w)) |
882 | { |
1776 | { |
883 | /* default loop */ |
1777 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1778 | /* while we modify the fd vars */ |
|
|
1779 | sig_pending = 1; |
|
|
1780 | #if EV_ASYNC_ENABLE |
|
|
1781 | async_pending = 1; |
|
|
1782 | #endif |
884 | |
1783 | |
885 | ev_ref (EV_A); |
1784 | ev_ref (EV_A); |
886 | ev_io_stop (EV_A_ &sigev); |
1785 | ev_io_stop (EV_A_ &pipe_w); |
887 | close (sigpipe [0]); |
|
|
888 | close (sigpipe [1]); |
|
|
889 | |
1786 | |
890 | while (pipe (sigpipe)) |
1787 | #if EV_USE_EVENTFD |
891 | syserr ("(libev) error creating pipe"); |
1788 | if (evfd >= 0) |
|
|
1789 | close (evfd); |
|
|
1790 | #endif |
892 | |
1791 | |
|
|
1792 | if (evpipe [0] >= 0) |
|
|
1793 | { |
|
|
1794 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1795 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1796 | } |
|
|
1797 | |
|
|
1798 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
893 | siginit (EV_A); |
1799 | evpipe_init (EV_A); |
|
|
1800 | /* now iterate over everything, in case we missed something */ |
|
|
1801 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1802 | #endif |
894 | } |
1803 | } |
895 | |
1804 | |
896 | postfork = 0; |
1805 | postfork = 0; |
897 | } |
1806 | } |
898 | |
1807 | |
899 | #if EV_MULTIPLICITY |
1808 | #if EV_MULTIPLICITY |
|
|
1809 | |
900 | struct ev_loop * |
1810 | struct ev_loop * |
901 | ev_loop_new (unsigned int flags) |
1811 | ev_loop_new (unsigned int flags) |
902 | { |
1812 | { |
903 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1813 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
904 | |
1814 | |
905 | memset (loop, 0, sizeof (struct ev_loop)); |
1815 | memset (EV_A, 0, sizeof (struct ev_loop)); |
906 | |
|
|
907 | loop_init (EV_A_ flags); |
1816 | loop_init (EV_A_ flags); |
908 | |
1817 | |
909 | if (ev_method (EV_A)) |
1818 | if (ev_backend (EV_A)) |
910 | return loop; |
1819 | return EV_A; |
911 | |
1820 | |
912 | return 0; |
1821 | return 0; |
913 | } |
1822 | } |
914 | |
1823 | |
915 | void |
1824 | void |
… | |
… | |
920 | } |
1829 | } |
921 | |
1830 | |
922 | void |
1831 | void |
923 | ev_loop_fork (EV_P) |
1832 | ev_loop_fork (EV_P) |
924 | { |
1833 | { |
925 | postfork = 1; |
1834 | postfork = 1; /* must be in line with ev_default_fork */ |
926 | } |
1835 | } |
|
|
1836 | #endif /* multiplicity */ |
927 | |
1837 | |
|
|
1838 | #if EV_VERIFY |
|
|
1839 | static void noinline |
|
|
1840 | verify_watcher (EV_P_ W w) |
|
|
1841 | { |
|
|
1842 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1843 | |
|
|
1844 | if (w->pending) |
|
|
1845 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1846 | } |
|
|
1847 | |
|
|
1848 | static void noinline |
|
|
1849 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1850 | { |
|
|
1851 | int i; |
|
|
1852 | |
|
|
1853 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1854 | { |
|
|
1855 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1856 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1857 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1858 | |
|
|
1859 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1860 | } |
|
|
1861 | } |
|
|
1862 | |
|
|
1863 | static void noinline |
|
|
1864 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1865 | { |
|
|
1866 | while (cnt--) |
|
|
1867 | { |
|
|
1868 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1869 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1870 | } |
|
|
1871 | } |
|
|
1872 | #endif |
|
|
1873 | |
|
|
1874 | #if EV_FEATURE_API |
|
|
1875 | void |
|
|
1876 | ev_verify (EV_P) |
|
|
1877 | { |
|
|
1878 | #if EV_VERIFY |
|
|
1879 | int i; |
|
|
1880 | WL w; |
|
|
1881 | |
|
|
1882 | assert (activecnt >= -1); |
|
|
1883 | |
|
|
1884 | assert (fdchangemax >= fdchangecnt); |
|
|
1885 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1886 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1887 | |
|
|
1888 | assert (anfdmax >= 0); |
|
|
1889 | for (i = 0; i < anfdmax; ++i) |
|
|
1890 | for (w = anfds [i].head; w; w = w->next) |
|
|
1891 | { |
|
|
1892 | verify_watcher (EV_A_ (W)w); |
|
|
1893 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1894 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1895 | } |
|
|
1896 | |
|
|
1897 | assert (timermax >= timercnt); |
|
|
1898 | verify_heap (EV_A_ timers, timercnt); |
|
|
1899 | |
|
|
1900 | #if EV_PERIODIC_ENABLE |
|
|
1901 | assert (periodicmax >= periodiccnt); |
|
|
1902 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1903 | #endif |
|
|
1904 | |
|
|
1905 | for (i = NUMPRI; i--; ) |
|
|
1906 | { |
|
|
1907 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1908 | #if EV_IDLE_ENABLE |
|
|
1909 | assert (idleall >= 0); |
|
|
1910 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1911 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1912 | #endif |
|
|
1913 | } |
|
|
1914 | |
|
|
1915 | #if EV_FORK_ENABLE |
|
|
1916 | assert (forkmax >= forkcnt); |
|
|
1917 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1918 | #endif |
|
|
1919 | |
|
|
1920 | #if EV_ASYNC_ENABLE |
|
|
1921 | assert (asyncmax >= asynccnt); |
|
|
1922 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1923 | #endif |
|
|
1924 | |
|
|
1925 | #if EV_PREPARE_ENABLE |
|
|
1926 | assert (preparemax >= preparecnt); |
|
|
1927 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1928 | #endif |
|
|
1929 | |
|
|
1930 | #if EV_CHECK_ENABLE |
|
|
1931 | assert (checkmax >= checkcnt); |
|
|
1932 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1933 | #endif |
|
|
1934 | |
|
|
1935 | # if 0 |
|
|
1936 | #if EV_CHILD_ENABLE |
|
|
1937 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1938 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1939 | #endif |
|
|
1940 | # endif |
|
|
1941 | #endif |
|
|
1942 | } |
928 | #endif |
1943 | #endif |
929 | |
1944 | |
930 | #if EV_MULTIPLICITY |
1945 | #if EV_MULTIPLICITY |
931 | struct ev_loop * |
1946 | struct ev_loop * |
932 | ev_default_loop_init (unsigned int flags) |
1947 | ev_default_loop_init (unsigned int flags) |
933 | #else |
1948 | #else |
934 | int |
1949 | int |
935 | ev_default_loop (unsigned int flags) |
1950 | ev_default_loop (unsigned int flags) |
936 | #endif |
1951 | #endif |
937 | { |
1952 | { |
938 | if (sigpipe [0] == sigpipe [1]) |
|
|
939 | if (pipe (sigpipe)) |
|
|
940 | return 0; |
|
|
941 | |
|
|
942 | if (!ev_default_loop_ptr) |
1953 | if (!ev_default_loop_ptr) |
943 | { |
1954 | { |
944 | #if EV_MULTIPLICITY |
1955 | #if EV_MULTIPLICITY |
945 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1956 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
946 | #else |
1957 | #else |
947 | ev_default_loop_ptr = 1; |
1958 | ev_default_loop_ptr = 1; |
948 | #endif |
1959 | #endif |
949 | |
1960 | |
950 | loop_init (EV_A_ flags); |
1961 | loop_init (EV_A_ flags); |
951 | |
1962 | |
952 | if (ev_method (EV_A)) |
1963 | if (ev_backend (EV_A)) |
953 | { |
1964 | { |
954 | siginit (EV_A); |
1965 | #if EV_CHILD_ENABLE |
955 | |
|
|
956 | #ifndef _WIN32 |
|
|
957 | ev_signal_init (&childev, childcb, SIGCHLD); |
1966 | ev_signal_init (&childev, childcb, SIGCHLD); |
958 | ev_set_priority (&childev, EV_MAXPRI); |
1967 | ev_set_priority (&childev, EV_MAXPRI); |
959 | ev_signal_start (EV_A_ &childev); |
1968 | ev_signal_start (EV_A_ &childev); |
960 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1969 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
961 | #endif |
1970 | #endif |
… | |
… | |
969 | |
1978 | |
970 | void |
1979 | void |
971 | ev_default_destroy (void) |
1980 | ev_default_destroy (void) |
972 | { |
1981 | { |
973 | #if EV_MULTIPLICITY |
1982 | #if EV_MULTIPLICITY |
974 | struct ev_loop *loop = ev_default_loop_ptr; |
1983 | EV_P = ev_default_loop_ptr; |
975 | #endif |
1984 | #endif |
976 | |
1985 | |
977 | #ifndef _WIN32 |
1986 | ev_default_loop_ptr = 0; |
|
|
1987 | |
|
|
1988 | #if EV_CHILD_ENABLE |
978 | ev_ref (EV_A); /* child watcher */ |
1989 | ev_ref (EV_A); /* child watcher */ |
979 | ev_signal_stop (EV_A_ &childev); |
1990 | ev_signal_stop (EV_A_ &childev); |
980 | #endif |
1991 | #endif |
981 | |
1992 | |
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); |
1993 | loop_destroy (EV_A); |
989 | } |
1994 | } |
990 | |
1995 | |
991 | void |
1996 | void |
992 | ev_default_fork (void) |
1997 | ev_default_fork (void) |
993 | { |
1998 | { |
994 | #if EV_MULTIPLICITY |
1999 | #if EV_MULTIPLICITY |
995 | struct ev_loop *loop = ev_default_loop_ptr; |
2000 | EV_P = ev_default_loop_ptr; |
996 | #endif |
2001 | #endif |
997 | |
2002 | |
998 | if (method) |
2003 | postfork = 1; /* must be in line with ev_loop_fork */ |
999 | postfork = 1; |
|
|
1000 | } |
2004 | } |
1001 | |
2005 | |
1002 | /*****************************************************************************/ |
2006 | /*****************************************************************************/ |
1003 | |
2007 | |
1004 | static int |
2008 | void |
1005 | any_pending (EV_P) |
2009 | ev_invoke (EV_P_ void *w, int revents) |
|
|
2010 | { |
|
|
2011 | EV_CB_INVOKE ((W)w, revents); |
|
|
2012 | } |
|
|
2013 | |
|
|
2014 | unsigned int |
|
|
2015 | ev_pending_count (EV_P) |
1006 | { |
2016 | { |
1007 | int pri; |
2017 | int pri; |
|
|
2018 | unsigned int count = 0; |
1008 | |
2019 | |
1009 | for (pri = NUMPRI; pri--; ) |
2020 | for (pri = NUMPRI; pri--; ) |
1010 | if (pendingcnt [pri]) |
2021 | count += pendingcnt [pri]; |
1011 | return 1; |
|
|
1012 | |
2022 | |
1013 | return 0; |
2023 | return count; |
1014 | } |
2024 | } |
1015 | |
2025 | |
1016 | inline void |
2026 | void noinline |
1017 | call_pending (EV_P) |
2027 | ev_invoke_pending (EV_P) |
1018 | { |
2028 | { |
1019 | int pri; |
2029 | int pri; |
1020 | |
2030 | |
1021 | for (pri = NUMPRI; pri--; ) |
2031 | for (pri = NUMPRI; pri--; ) |
1022 | while (pendingcnt [pri]) |
2032 | while (pendingcnt [pri]) |
1023 | { |
2033 | { |
1024 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2034 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1025 | |
2035 | |
1026 | if (expect_true (p->w)) |
2036 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
1027 | { |
2037 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2038 | |
1028 | p->w->pending = 0; |
2039 | p->w->pending = 0; |
1029 | EV_CB_INVOKE (p->w, p->events); |
2040 | EV_CB_INVOKE (p->w, p->events); |
1030 | } |
2041 | EV_FREQUENT_CHECK; |
1031 | } |
2042 | } |
1032 | } |
2043 | } |
1033 | |
2044 | |
|
|
2045 | #if EV_IDLE_ENABLE |
|
|
2046 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2047 | /* only when higher priorities are idle" logic */ |
1034 | inline void |
2048 | inline_size void |
|
|
2049 | idle_reify (EV_P) |
|
|
2050 | { |
|
|
2051 | if (expect_false (idleall)) |
|
|
2052 | { |
|
|
2053 | int pri; |
|
|
2054 | |
|
|
2055 | for (pri = NUMPRI; pri--; ) |
|
|
2056 | { |
|
|
2057 | if (pendingcnt [pri]) |
|
|
2058 | break; |
|
|
2059 | |
|
|
2060 | if (idlecnt [pri]) |
|
|
2061 | { |
|
|
2062 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
2063 | break; |
|
|
2064 | } |
|
|
2065 | } |
|
|
2066 | } |
|
|
2067 | } |
|
|
2068 | #endif |
|
|
2069 | |
|
|
2070 | /* make timers pending */ |
|
|
2071 | inline_size void |
1035 | timers_reify (EV_P) |
2072 | timers_reify (EV_P) |
1036 | { |
2073 | { |
|
|
2074 | EV_FREQUENT_CHECK; |
|
|
2075 | |
1037 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
2076 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1038 | { |
2077 | { |
1039 | struct ev_timer *w = timers [0]; |
2078 | do |
1040 | |
|
|
1041 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
|
|
1042 | |
|
|
1043 | /* first reschedule or stop timer */ |
|
|
1044 | if (w->repeat) |
|
|
1045 | { |
2079 | { |
|
|
2080 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2081 | |
|
|
2082 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2083 | |
|
|
2084 | /* first reschedule or stop timer */ |
|
|
2085 | if (w->repeat) |
|
|
2086 | { |
|
|
2087 | ev_at (w) += w->repeat; |
|
|
2088 | if (ev_at (w) < mn_now) |
|
|
2089 | ev_at (w) = mn_now; |
|
|
2090 | |
1046 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2091 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1047 | |
2092 | |
1048 | ((WT)w)->at += w->repeat; |
2093 | ANHE_at_cache (timers [HEAP0]); |
1049 | if (((WT)w)->at < mn_now) |
|
|
1050 | ((WT)w)->at = mn_now; |
|
|
1051 | |
|
|
1052 | downheap ((WT *)timers, timercnt, 0); |
2094 | downheap (timers, timercnt, HEAP0); |
|
|
2095 | } |
|
|
2096 | else |
|
|
2097 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2098 | |
|
|
2099 | EV_FREQUENT_CHECK; |
|
|
2100 | feed_reverse (EV_A_ (W)w); |
1053 | } |
2101 | } |
1054 | else |
2102 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1055 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1056 | |
2103 | |
1057 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2104 | feed_reverse_done (EV_A_ EV_TIMER); |
1058 | } |
2105 | } |
1059 | } |
2106 | } |
1060 | |
2107 | |
1061 | #if EV_PERIODICS |
2108 | #if EV_PERIODIC_ENABLE |
|
|
2109 | /* make periodics pending */ |
1062 | inline void |
2110 | inline_size void |
1063 | periodics_reify (EV_P) |
2111 | periodics_reify (EV_P) |
1064 | { |
2112 | { |
|
|
2113 | EV_FREQUENT_CHECK; |
|
|
2114 | |
1065 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
2115 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1066 | { |
2116 | { |
1067 | struct ev_periodic *w = periodics [0]; |
2117 | int feed_count = 0; |
1068 | |
2118 | |
|
|
2119 | do |
|
|
2120 | { |
|
|
2121 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2122 | |
1069 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
2123 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1070 | |
2124 | |
1071 | /* first reschedule or stop timer */ |
2125 | /* first reschedule or stop timer */ |
|
|
2126 | if (w->reschedule_cb) |
|
|
2127 | { |
|
|
2128 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2129 | |
|
|
2130 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2131 | |
|
|
2132 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2133 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2134 | } |
|
|
2135 | else if (w->interval) |
|
|
2136 | { |
|
|
2137 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2138 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2139 | /* this might happen because of floating point inexactness */ |
|
|
2140 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2141 | { |
|
|
2142 | ev_at (w) += w->interval; |
|
|
2143 | |
|
|
2144 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2145 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2146 | /* has effectively asked to get triggered more often than possible */ |
|
|
2147 | if (ev_at (w) < ev_rt_now) |
|
|
2148 | ev_at (w) = ev_rt_now; |
|
|
2149 | } |
|
|
2150 | |
|
|
2151 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2152 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2153 | } |
|
|
2154 | else |
|
|
2155 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2156 | |
|
|
2157 | EV_FREQUENT_CHECK; |
|
|
2158 | feed_reverse (EV_A_ (W)w); |
|
|
2159 | } |
|
|
2160 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2161 | |
|
|
2162 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2163 | } |
|
|
2164 | } |
|
|
2165 | |
|
|
2166 | /* simply recalculate all periodics */ |
|
|
2167 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
2168 | static void noinline |
|
|
2169 | periodics_reschedule (EV_P) |
|
|
2170 | { |
|
|
2171 | int i; |
|
|
2172 | |
|
|
2173 | /* adjust periodics after time jump */ |
|
|
2174 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2175 | { |
|
|
2176 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2177 | |
1072 | if (w->reschedule_cb) |
2178 | if (w->reschedule_cb) |
|
|
2179 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2180 | else if (w->interval) |
|
|
2181 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2182 | |
|
|
2183 | ANHE_at_cache (periodics [i]); |
|
|
2184 | } |
|
|
2185 | |
|
|
2186 | reheap (periodics, periodiccnt); |
|
|
2187 | } |
|
|
2188 | #endif |
|
|
2189 | |
|
|
2190 | /* adjust all timers by a given offset */ |
|
|
2191 | static void noinline |
|
|
2192 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2193 | { |
|
|
2194 | int i; |
|
|
2195 | |
|
|
2196 | for (i = 0; i < timercnt; ++i) |
|
|
2197 | { |
|
|
2198 | ANHE *he = timers + i + HEAP0; |
|
|
2199 | ANHE_w (*he)->at += adjust; |
|
|
2200 | ANHE_at_cache (*he); |
|
|
2201 | } |
|
|
2202 | } |
|
|
2203 | |
|
|
2204 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2205 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2206 | inline_speed void |
|
|
2207 | time_update (EV_P_ ev_tstamp max_block) |
|
|
2208 | { |
|
|
2209 | #if EV_USE_MONOTONIC |
|
|
2210 | if (expect_true (have_monotonic)) |
|
|
2211 | { |
|
|
2212 | int i; |
|
|
2213 | ev_tstamp odiff = rtmn_diff; |
|
|
2214 | |
|
|
2215 | mn_now = get_clock (); |
|
|
2216 | |
|
|
2217 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
2218 | /* interpolate in the meantime */ |
|
|
2219 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1073 | { |
2220 | { |
1074 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
2221 | ev_rt_now = rtmn_diff + mn_now; |
1075 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
2222 | return; |
1076 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1077 | } |
2223 | } |
1078 | else if (w->interval) |
|
|
1079 | { |
|
|
1080 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
|
|
1081 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1082 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1083 | } |
|
|
1084 | else |
|
|
1085 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1086 | |
2224 | |
1087 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1088 | } |
|
|
1089 | } |
|
|
1090 | |
|
|
1091 | static void |
|
|
1092 | periodics_reschedule (EV_P) |
|
|
1093 | { |
|
|
1094 | int i; |
|
|
1095 | |
|
|
1096 | /* adjust periodics after time jump */ |
|
|
1097 | for (i = 0; i < periodiccnt; ++i) |
|
|
1098 | { |
|
|
1099 | struct ev_periodic *w = periodics [i]; |
|
|
1100 | |
|
|
1101 | if (w->reschedule_cb) |
|
|
1102 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
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; |
2225 | now_floor = mn_now; |
1126 | ev_rt_now = ev_time (); |
2226 | ev_rt_now = ev_time (); |
1127 | return 1; |
|
|
1128 | } |
|
|
1129 | } |
|
|
1130 | |
2227 | |
1131 | inline void |
2228 | /* loop a few times, before making important decisions. |
1132 | time_update (EV_P) |
2229 | * on the choice of "4": one iteration isn't enough, |
1133 | { |
2230 | * in case we get preempted during the calls to |
1134 | int i; |
2231 | * ev_time and get_clock. a second call is almost guaranteed |
1135 | |
2232 | * to succeed in that case, though. and looping a few more times |
1136 | #if EV_USE_MONOTONIC |
2233 | * doesn't hurt either as we only do this on time-jumps or |
1137 | if (expect_true (have_monotonic)) |
2234 | * in the unlikely event of having been preempted here. |
1138 | { |
2235 | */ |
1139 | if (time_update_monotonic (EV_A)) |
2236 | for (i = 4; --i; ) |
1140 | { |
2237 | { |
1141 | ev_tstamp odiff = rtmn_diff; |
|
|
1142 | |
|
|
1143 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
1144 | { |
|
|
1145 | rtmn_diff = ev_rt_now - mn_now; |
2238 | rtmn_diff = ev_rt_now - mn_now; |
1146 | |
2239 | |
1147 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2240 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1148 | return; /* all is well */ |
2241 | return; /* all is well */ |
1149 | |
2242 | |
1150 | ev_rt_now = ev_time (); |
2243 | ev_rt_now = ev_time (); |
1151 | mn_now = get_clock (); |
2244 | mn_now = get_clock (); |
1152 | now_floor = mn_now; |
2245 | now_floor = mn_now; |
1153 | } |
2246 | } |
1154 | |
2247 | |
|
|
2248 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2249 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1155 | # if EV_PERIODICS |
2250 | # if EV_PERIODIC_ENABLE |
|
|
2251 | periodics_reschedule (EV_A); |
|
|
2252 | # endif |
|
|
2253 | } |
|
|
2254 | else |
|
|
2255 | #endif |
|
|
2256 | { |
|
|
2257 | ev_rt_now = ev_time (); |
|
|
2258 | |
|
|
2259 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
2260 | { |
|
|
2261 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2262 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
|
|
2263 | #if EV_PERIODIC_ENABLE |
1156 | periodics_reschedule (EV_A); |
2264 | periodics_reschedule (EV_A); |
1157 | # endif |
2265 | #endif |
1158 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1159 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1160 | } |
2266 | } |
1161 | } |
|
|
1162 | else |
|
|
1163 | #endif |
|
|
1164 | { |
|
|
1165 | ev_rt_now = ev_time (); |
|
|
1166 | |
|
|
1167 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1168 | { |
|
|
1169 | #if EV_PERIODICS |
|
|
1170 | periodics_reschedule (EV_A); |
|
|
1171 | #endif |
|
|
1172 | |
|
|
1173 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1174 | for (i = 0; i < timercnt; ++i) |
|
|
1175 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1176 | } |
|
|
1177 | |
2267 | |
1178 | mn_now = ev_rt_now; |
2268 | mn_now = ev_rt_now; |
1179 | } |
2269 | } |
1180 | } |
2270 | } |
1181 | |
2271 | |
1182 | void |
2272 | void |
1183 | ev_ref (EV_P) |
|
|
1184 | { |
|
|
1185 | ++activecnt; |
|
|
1186 | } |
|
|
1187 | |
|
|
1188 | void |
|
|
1189 | ev_unref (EV_P) |
|
|
1190 | { |
|
|
1191 | --activecnt; |
|
|
1192 | } |
|
|
1193 | |
|
|
1194 | static int loop_done; |
|
|
1195 | |
|
|
1196 | void |
|
|
1197 | ev_loop (EV_P_ int flags) |
2273 | ev_loop (EV_P_ int flags) |
1198 | { |
2274 | { |
1199 | double block; |
2275 | #if EV_FEATURE_API |
1200 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
2276 | ++loop_depth; |
|
|
2277 | #endif |
1201 | |
2278 | |
1202 | while (activecnt) |
2279 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2280 | |
|
|
2281 | loop_done = EVUNLOOP_CANCEL; |
|
|
2282 | |
|
|
2283 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
2284 | |
|
|
2285 | do |
1203 | { |
2286 | { |
|
|
2287 | #if EV_VERIFY >= 2 |
|
|
2288 | ev_verify (EV_A); |
|
|
2289 | #endif |
|
|
2290 | |
|
|
2291 | #ifndef _WIN32 |
|
|
2292 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
2293 | if (expect_false (getpid () != curpid)) |
|
|
2294 | { |
|
|
2295 | curpid = getpid (); |
|
|
2296 | postfork = 1; |
|
|
2297 | } |
|
|
2298 | #endif |
|
|
2299 | |
|
|
2300 | #if EV_FORK_ENABLE |
|
|
2301 | /* we might have forked, so queue fork handlers */ |
|
|
2302 | if (expect_false (postfork)) |
|
|
2303 | if (forkcnt) |
|
|
2304 | { |
|
|
2305 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
2306 | EV_INVOKE_PENDING; |
|
|
2307 | } |
|
|
2308 | #endif |
|
|
2309 | |
|
|
2310 | #if EV_PREPARE_ENABLE |
1204 | /* queue check watchers (and execute them) */ |
2311 | /* queue prepare watchers (and execute them) */ |
1205 | if (expect_false (preparecnt)) |
2312 | if (expect_false (preparecnt)) |
1206 | { |
2313 | { |
1207 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2314 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1208 | call_pending (EV_A); |
2315 | EV_INVOKE_PENDING; |
1209 | } |
2316 | } |
|
|
2317 | #endif |
|
|
2318 | |
|
|
2319 | if (expect_false (loop_done)) |
|
|
2320 | break; |
1210 | |
2321 | |
1211 | /* we might have forked, so reify kernel state if necessary */ |
2322 | /* we might have forked, so reify kernel state if necessary */ |
1212 | if (expect_false (postfork)) |
2323 | if (expect_false (postfork)) |
1213 | loop_fork (EV_A); |
2324 | loop_fork (EV_A); |
1214 | |
2325 | |
1215 | /* update fd-related kernel structures */ |
2326 | /* update fd-related kernel structures */ |
1216 | fd_reify (EV_A); |
2327 | fd_reify (EV_A); |
1217 | |
2328 | |
1218 | /* calculate blocking time */ |
2329 | /* calculate blocking time */ |
|
|
2330 | { |
|
|
2331 | ev_tstamp waittime = 0.; |
|
|
2332 | ev_tstamp sleeptime = 0.; |
1219 | |
2333 | |
1220 | /* we only need this for !monotonic clock or timers, but as we basically |
2334 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
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 | { |
2335 | { |
1228 | ev_rt_now = ev_time (); |
2336 | /* remember old timestamp for io_blocktime calculation */ |
1229 | mn_now = ev_rt_now; |
2337 | ev_tstamp prev_mn_now = mn_now; |
1230 | } |
|
|
1231 | |
2338 | |
1232 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
2339 | /* update time to cancel out callback processing overhead */ |
1233 | block = 0.; |
2340 | time_update (EV_A_ 1e100); |
1234 | else |
2341 | |
1235 | { |
|
|
1236 | block = MAX_BLOCKTIME; |
2342 | waittime = MAX_BLOCKTIME; |
1237 | |
2343 | |
1238 | if (timercnt) |
2344 | if (timercnt) |
1239 | { |
2345 | { |
1240 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
2346 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1241 | if (block > to) block = to; |
2347 | if (waittime > to) waittime = to; |
1242 | } |
2348 | } |
1243 | |
2349 | |
1244 | #if EV_PERIODICS |
2350 | #if EV_PERIODIC_ENABLE |
1245 | if (periodiccnt) |
2351 | if (periodiccnt) |
1246 | { |
2352 | { |
1247 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
2353 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1248 | if (block > to) block = to; |
2354 | if (waittime > to) waittime = to; |
1249 | } |
2355 | } |
1250 | #endif |
2356 | #endif |
1251 | |
2357 | |
1252 | if (expect_false (block < 0.)) block = 0.; |
2358 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
|
|
2359 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2360 | waittime = timeout_blocktime; |
|
|
2361 | |
|
|
2362 | /* extra check because io_blocktime is commonly 0 */ |
|
|
2363 | if (expect_false (io_blocktime)) |
|
|
2364 | { |
|
|
2365 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2366 | |
|
|
2367 | if (sleeptime > waittime - backend_fudge) |
|
|
2368 | sleeptime = waittime - backend_fudge; |
|
|
2369 | |
|
|
2370 | if (expect_true (sleeptime > 0.)) |
|
|
2371 | { |
|
|
2372 | ev_sleep (sleeptime); |
|
|
2373 | waittime -= sleeptime; |
|
|
2374 | } |
|
|
2375 | } |
1253 | } |
2376 | } |
1254 | |
2377 | |
1255 | method_poll (EV_A_ block); |
2378 | #if EV_FEATURE_API |
|
|
2379 | ++loop_count; |
|
|
2380 | #endif |
|
|
2381 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
|
|
2382 | backend_poll (EV_A_ waittime); |
|
|
2383 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1256 | |
2384 | |
1257 | /* update ev_rt_now, do magic */ |
2385 | /* update ev_rt_now, do magic */ |
1258 | time_update (EV_A); |
2386 | time_update (EV_A_ waittime + sleeptime); |
|
|
2387 | } |
1259 | |
2388 | |
1260 | /* queue pending timers and reschedule them */ |
2389 | /* queue pending timers and reschedule them */ |
1261 | timers_reify (EV_A); /* relative timers called last */ |
2390 | timers_reify (EV_A); /* relative timers called last */ |
1262 | #if EV_PERIODICS |
2391 | #if EV_PERIODIC_ENABLE |
1263 | periodics_reify (EV_A); /* absolute timers called first */ |
2392 | periodics_reify (EV_A); /* absolute timers called first */ |
1264 | #endif |
2393 | #endif |
1265 | |
2394 | |
|
|
2395 | #if EV_IDLE_ENABLE |
1266 | /* queue idle watchers unless io or timers are pending */ |
2396 | /* queue idle watchers unless other events are pending */ |
1267 | if (idlecnt && !any_pending (EV_A)) |
2397 | idle_reify (EV_A); |
1268 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
2398 | #endif |
1269 | |
2399 | |
|
|
2400 | #if EV_CHECK_ENABLE |
1270 | /* queue check watchers, to be executed first */ |
2401 | /* queue check watchers, to be executed first */ |
1271 | if (expect_false (checkcnt)) |
2402 | if (expect_false (checkcnt)) |
1272 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2403 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2404 | #endif |
1273 | |
2405 | |
1274 | call_pending (EV_A); |
2406 | EV_INVOKE_PENDING; |
1275 | |
|
|
1276 | if (expect_false (loop_done)) |
|
|
1277 | break; |
|
|
1278 | } |
2407 | } |
|
|
2408 | while (expect_true ( |
|
|
2409 | activecnt |
|
|
2410 | && !loop_done |
|
|
2411 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2412 | )); |
1279 | |
2413 | |
1280 | if (loop_done != 2) |
2414 | if (loop_done == EVUNLOOP_ONE) |
1281 | loop_done = 0; |
2415 | loop_done = EVUNLOOP_CANCEL; |
|
|
2416 | |
|
|
2417 | #if EV_FEATURE_API |
|
|
2418 | --loop_depth; |
|
|
2419 | #endif |
1282 | } |
2420 | } |
1283 | |
2421 | |
1284 | void |
2422 | void |
1285 | ev_unloop (EV_P_ int how) |
2423 | ev_unloop (EV_P_ int how) |
1286 | { |
2424 | { |
1287 | loop_done = how; |
2425 | loop_done = how; |
1288 | } |
2426 | } |
1289 | |
2427 | |
|
|
2428 | void |
|
|
2429 | ev_ref (EV_P) |
|
|
2430 | { |
|
|
2431 | ++activecnt; |
|
|
2432 | } |
|
|
2433 | |
|
|
2434 | void |
|
|
2435 | ev_unref (EV_P) |
|
|
2436 | { |
|
|
2437 | --activecnt; |
|
|
2438 | } |
|
|
2439 | |
|
|
2440 | void |
|
|
2441 | ev_now_update (EV_P) |
|
|
2442 | { |
|
|
2443 | time_update (EV_A_ 1e100); |
|
|
2444 | } |
|
|
2445 | |
|
|
2446 | void |
|
|
2447 | ev_suspend (EV_P) |
|
|
2448 | { |
|
|
2449 | ev_now_update (EV_A); |
|
|
2450 | } |
|
|
2451 | |
|
|
2452 | void |
|
|
2453 | ev_resume (EV_P) |
|
|
2454 | { |
|
|
2455 | ev_tstamp mn_prev = mn_now; |
|
|
2456 | |
|
|
2457 | ev_now_update (EV_A); |
|
|
2458 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2459 | #if EV_PERIODIC_ENABLE |
|
|
2460 | /* TODO: really do this? */ |
|
|
2461 | periodics_reschedule (EV_A); |
|
|
2462 | #endif |
|
|
2463 | } |
|
|
2464 | |
1290 | /*****************************************************************************/ |
2465 | /*****************************************************************************/ |
|
|
2466 | /* singly-linked list management, used when the expected list length is short */ |
1291 | |
2467 | |
1292 | inline void |
2468 | inline_size void |
1293 | wlist_add (WL *head, WL elem) |
2469 | wlist_add (WL *head, WL elem) |
1294 | { |
2470 | { |
1295 | elem->next = *head; |
2471 | elem->next = *head; |
1296 | *head = elem; |
2472 | *head = elem; |
1297 | } |
2473 | } |
1298 | |
2474 | |
1299 | inline void |
2475 | inline_size void |
1300 | wlist_del (WL *head, WL elem) |
2476 | wlist_del (WL *head, WL elem) |
1301 | { |
2477 | { |
1302 | while (*head) |
2478 | while (*head) |
1303 | { |
2479 | { |
1304 | if (*head == elem) |
2480 | if (expect_true (*head == elem)) |
1305 | { |
2481 | { |
1306 | *head = elem->next; |
2482 | *head = elem->next; |
1307 | return; |
2483 | break; |
1308 | } |
2484 | } |
1309 | |
2485 | |
1310 | head = &(*head)->next; |
2486 | head = &(*head)->next; |
1311 | } |
2487 | } |
1312 | } |
2488 | } |
1313 | |
2489 | |
|
|
2490 | /* internal, faster, version of ev_clear_pending */ |
1314 | inline void |
2491 | inline_speed void |
1315 | ev_clear_pending (EV_P_ W w) |
2492 | clear_pending (EV_P_ W w) |
1316 | { |
2493 | { |
1317 | if (w->pending) |
2494 | if (w->pending) |
1318 | { |
2495 | { |
1319 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2496 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1320 | w->pending = 0; |
2497 | w->pending = 0; |
1321 | } |
2498 | } |
1322 | } |
2499 | } |
1323 | |
2500 | |
|
|
2501 | int |
|
|
2502 | ev_clear_pending (EV_P_ void *w) |
|
|
2503 | { |
|
|
2504 | W w_ = (W)w; |
|
|
2505 | int pending = w_->pending; |
|
|
2506 | |
|
|
2507 | if (expect_true (pending)) |
|
|
2508 | { |
|
|
2509 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2510 | p->w = (W)&pending_w; |
|
|
2511 | w_->pending = 0; |
|
|
2512 | return p->events; |
|
|
2513 | } |
|
|
2514 | else |
|
|
2515 | return 0; |
|
|
2516 | } |
|
|
2517 | |
1324 | inline void |
2518 | inline_size void |
|
|
2519 | pri_adjust (EV_P_ W w) |
|
|
2520 | { |
|
|
2521 | int pri = ev_priority (w); |
|
|
2522 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
2523 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
2524 | ev_set_priority (w, pri); |
|
|
2525 | } |
|
|
2526 | |
|
|
2527 | inline_speed void |
1325 | ev_start (EV_P_ W w, int active) |
2528 | ev_start (EV_P_ W w, int active) |
1326 | { |
2529 | { |
1327 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
2530 | pri_adjust (EV_A_ w); |
1328 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1329 | |
|
|
1330 | w->active = active; |
2531 | w->active = active; |
1331 | ev_ref (EV_A); |
2532 | ev_ref (EV_A); |
1332 | } |
2533 | } |
1333 | |
2534 | |
1334 | inline void |
2535 | inline_size void |
1335 | ev_stop (EV_P_ W w) |
2536 | ev_stop (EV_P_ W w) |
1336 | { |
2537 | { |
1337 | ev_unref (EV_A); |
2538 | ev_unref (EV_A); |
1338 | w->active = 0; |
2539 | w->active = 0; |
1339 | } |
2540 | } |
1340 | |
2541 | |
1341 | /*****************************************************************************/ |
2542 | /*****************************************************************************/ |
1342 | |
2543 | |
1343 | void |
2544 | void noinline |
1344 | ev_io_start (EV_P_ struct ev_io *w) |
2545 | ev_io_start (EV_P_ ev_io *w) |
1345 | { |
2546 | { |
1346 | int fd = w->fd; |
2547 | int fd = w->fd; |
1347 | |
2548 | |
1348 | if (expect_false (ev_is_active (w))) |
2549 | if (expect_false (ev_is_active (w))) |
1349 | return; |
2550 | return; |
1350 | |
2551 | |
1351 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2552 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2553 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2554 | |
|
|
2555 | EV_FREQUENT_CHECK; |
1352 | |
2556 | |
1353 | ev_start (EV_A_ (W)w, 1); |
2557 | ev_start (EV_A_ (W)w, 1); |
1354 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2558 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1355 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2559 | wlist_add (&anfds[fd].head, (WL)w); |
1356 | |
2560 | |
1357 | fd_change (EV_A_ fd); |
2561 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1358 | } |
2562 | w->events &= ~EV__IOFDSET; |
1359 | |
2563 | |
1360 | void |
2564 | EV_FREQUENT_CHECK; |
|
|
2565 | } |
|
|
2566 | |
|
|
2567 | void noinline |
1361 | ev_io_stop (EV_P_ struct ev_io *w) |
2568 | ev_io_stop (EV_P_ ev_io *w) |
1362 | { |
2569 | { |
1363 | ev_clear_pending (EV_A_ (W)w); |
2570 | clear_pending (EV_A_ (W)w); |
1364 | if (expect_false (!ev_is_active (w))) |
2571 | if (expect_false (!ev_is_active (w))) |
1365 | return; |
2572 | return; |
1366 | |
2573 | |
1367 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2574 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1368 | |
2575 | |
|
|
2576 | EV_FREQUENT_CHECK; |
|
|
2577 | |
1369 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2578 | wlist_del (&anfds[w->fd].head, (WL)w); |
1370 | ev_stop (EV_A_ (W)w); |
2579 | ev_stop (EV_A_ (W)w); |
1371 | |
2580 | |
1372 | fd_change (EV_A_ w->fd); |
2581 | fd_change (EV_A_ w->fd, 1); |
1373 | } |
|
|
1374 | |
2582 | |
1375 | void |
2583 | EV_FREQUENT_CHECK; |
|
|
2584 | } |
|
|
2585 | |
|
|
2586 | void noinline |
1376 | ev_timer_start (EV_P_ struct ev_timer *w) |
2587 | ev_timer_start (EV_P_ ev_timer *w) |
1377 | { |
2588 | { |
1378 | if (expect_false (ev_is_active (w))) |
2589 | if (expect_false (ev_is_active (w))) |
1379 | return; |
2590 | return; |
1380 | |
2591 | |
1381 | ((WT)w)->at += mn_now; |
2592 | ev_at (w) += mn_now; |
1382 | |
2593 | |
1383 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2594 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1384 | |
2595 | |
|
|
2596 | EV_FREQUENT_CHECK; |
|
|
2597 | |
|
|
2598 | ++timercnt; |
1385 | ev_start (EV_A_ (W)w, ++timercnt); |
2599 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1386 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
2600 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1387 | timers [timercnt - 1] = w; |
2601 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1388 | upheap ((WT *)timers, timercnt - 1); |
2602 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2603 | upheap (timers, ev_active (w)); |
1389 | |
2604 | |
|
|
2605 | EV_FREQUENT_CHECK; |
|
|
2606 | |
1390 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2607 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1391 | } |
2608 | } |
1392 | |
2609 | |
1393 | void |
2610 | void noinline |
1394 | ev_timer_stop (EV_P_ struct ev_timer *w) |
2611 | ev_timer_stop (EV_P_ ev_timer *w) |
1395 | { |
2612 | { |
1396 | ev_clear_pending (EV_A_ (W)w); |
2613 | clear_pending (EV_A_ (W)w); |
1397 | if (expect_false (!ev_is_active (w))) |
2614 | if (expect_false (!ev_is_active (w))) |
1398 | return; |
2615 | return; |
1399 | |
2616 | |
|
|
2617 | EV_FREQUENT_CHECK; |
|
|
2618 | |
|
|
2619 | { |
|
|
2620 | int active = ev_active (w); |
|
|
2621 | |
1400 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2622 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
1401 | |
2623 | |
|
|
2624 | --timercnt; |
|
|
2625 | |
1402 | if (expect_true (((W)w)->active < timercnt--)) |
2626 | if (expect_true (active < timercnt + HEAP0)) |
1403 | { |
2627 | { |
1404 | timers [((W)w)->active - 1] = timers [timercnt]; |
2628 | timers [active] = timers [timercnt + HEAP0]; |
1405 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2629 | adjustheap (timers, timercnt, active); |
1406 | } |
2630 | } |
|
|
2631 | } |
1407 | |
2632 | |
1408 | ((WT)w)->at -= mn_now; |
2633 | ev_at (w) -= mn_now; |
1409 | |
2634 | |
1410 | ev_stop (EV_A_ (W)w); |
2635 | ev_stop (EV_A_ (W)w); |
1411 | } |
|
|
1412 | |
2636 | |
1413 | void |
2637 | EV_FREQUENT_CHECK; |
|
|
2638 | } |
|
|
2639 | |
|
|
2640 | void noinline |
1414 | ev_timer_again (EV_P_ struct ev_timer *w) |
2641 | ev_timer_again (EV_P_ ev_timer *w) |
1415 | { |
2642 | { |
|
|
2643 | EV_FREQUENT_CHECK; |
|
|
2644 | |
1416 | if (ev_is_active (w)) |
2645 | if (ev_is_active (w)) |
1417 | { |
2646 | { |
1418 | if (w->repeat) |
2647 | if (w->repeat) |
1419 | { |
2648 | { |
1420 | ((WT)w)->at = mn_now + w->repeat; |
2649 | ev_at (w) = mn_now + w->repeat; |
|
|
2650 | ANHE_at_cache (timers [ev_active (w)]); |
1421 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2651 | adjustheap (timers, timercnt, ev_active (w)); |
1422 | } |
2652 | } |
1423 | else |
2653 | else |
1424 | ev_timer_stop (EV_A_ w); |
2654 | ev_timer_stop (EV_A_ w); |
1425 | } |
2655 | } |
1426 | else if (w->repeat) |
2656 | else if (w->repeat) |
1427 | { |
2657 | { |
1428 | w->at = w->repeat; |
2658 | ev_at (w) = w->repeat; |
1429 | ev_timer_start (EV_A_ w); |
2659 | ev_timer_start (EV_A_ w); |
1430 | } |
2660 | } |
1431 | } |
|
|
1432 | |
2661 | |
|
|
2662 | EV_FREQUENT_CHECK; |
|
|
2663 | } |
|
|
2664 | |
|
|
2665 | ev_tstamp |
|
|
2666 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2667 | { |
|
|
2668 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2669 | } |
|
|
2670 | |
1433 | #if EV_PERIODICS |
2671 | #if EV_PERIODIC_ENABLE |
1434 | void |
2672 | void noinline |
1435 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
2673 | ev_periodic_start (EV_P_ ev_periodic *w) |
1436 | { |
2674 | { |
1437 | if (expect_false (ev_is_active (w))) |
2675 | if (expect_false (ev_is_active (w))) |
1438 | return; |
2676 | return; |
1439 | |
2677 | |
1440 | if (w->reschedule_cb) |
2678 | if (w->reschedule_cb) |
1441 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2679 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1442 | else if (w->interval) |
2680 | else if (w->interval) |
1443 | { |
2681 | { |
1444 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2682 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1445 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2683 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1446 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2684 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1447 | } |
2685 | } |
|
|
2686 | else |
|
|
2687 | ev_at (w) = w->offset; |
1448 | |
2688 | |
|
|
2689 | EV_FREQUENT_CHECK; |
|
|
2690 | |
|
|
2691 | ++periodiccnt; |
1449 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2692 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1450 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2693 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1451 | periodics [periodiccnt - 1] = w; |
2694 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1452 | upheap ((WT *)periodics, periodiccnt - 1); |
2695 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2696 | upheap (periodics, ev_active (w)); |
1453 | |
2697 | |
|
|
2698 | EV_FREQUENT_CHECK; |
|
|
2699 | |
1454 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2700 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1455 | } |
2701 | } |
1456 | |
2702 | |
1457 | void |
2703 | void noinline |
1458 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
2704 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1459 | { |
2705 | { |
1460 | ev_clear_pending (EV_A_ (W)w); |
2706 | clear_pending (EV_A_ (W)w); |
1461 | if (expect_false (!ev_is_active (w))) |
2707 | if (expect_false (!ev_is_active (w))) |
1462 | return; |
2708 | return; |
1463 | |
2709 | |
|
|
2710 | EV_FREQUENT_CHECK; |
|
|
2711 | |
|
|
2712 | { |
|
|
2713 | int active = ev_active (w); |
|
|
2714 | |
1464 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2715 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
1465 | |
2716 | |
|
|
2717 | --periodiccnt; |
|
|
2718 | |
1466 | if (expect_true (((W)w)->active < periodiccnt--)) |
2719 | if (expect_true (active < periodiccnt + HEAP0)) |
1467 | { |
2720 | { |
1468 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
2721 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1469 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
2722 | adjustheap (periodics, periodiccnt, active); |
1470 | } |
2723 | } |
|
|
2724 | } |
1471 | |
2725 | |
1472 | ev_stop (EV_A_ (W)w); |
2726 | ev_stop (EV_A_ (W)w); |
1473 | } |
|
|
1474 | |
2727 | |
1475 | void |
2728 | EV_FREQUENT_CHECK; |
|
|
2729 | } |
|
|
2730 | |
|
|
2731 | void noinline |
1476 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
2732 | ev_periodic_again (EV_P_ ev_periodic *w) |
1477 | { |
2733 | { |
1478 | /* TODO: use adjustheap and recalculation */ |
2734 | /* TODO: use adjustheap and recalculation */ |
1479 | ev_periodic_stop (EV_A_ w); |
2735 | ev_periodic_stop (EV_A_ w); |
1480 | ev_periodic_start (EV_A_ w); |
2736 | ev_periodic_start (EV_A_ w); |
1481 | } |
2737 | } |
1482 | #endif |
2738 | #endif |
1483 | |
2739 | |
1484 | void |
2740 | #ifndef SA_RESTART |
1485 | ev_idle_start (EV_P_ struct ev_idle *w) |
2741 | # define SA_RESTART 0 |
|
|
2742 | #endif |
|
|
2743 | |
|
|
2744 | #if EV_SIGNAL_ENABLE |
|
|
2745 | |
|
|
2746 | void noinline |
|
|
2747 | ev_signal_start (EV_P_ ev_signal *w) |
1486 | { |
2748 | { |
1487 | if (expect_false (ev_is_active (w))) |
2749 | if (expect_false (ev_is_active (w))) |
1488 | return; |
2750 | return; |
1489 | |
2751 | |
|
|
2752 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
|
|
2753 | |
|
|
2754 | #if EV_MULTIPLICITY |
|
|
2755 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2756 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
2757 | |
|
|
2758 | signals [w->signum - 1].loop = EV_A; |
|
|
2759 | #endif |
|
|
2760 | |
|
|
2761 | EV_FREQUENT_CHECK; |
|
|
2762 | |
|
|
2763 | #if EV_USE_SIGNALFD |
|
|
2764 | if (sigfd == -2) |
|
|
2765 | { |
|
|
2766 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
|
|
2767 | if (sigfd < 0 && errno == EINVAL) |
|
|
2768 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
|
|
2769 | |
|
|
2770 | if (sigfd >= 0) |
|
|
2771 | { |
|
|
2772 | fd_intern (sigfd); /* doing it twice will not hurt */ |
|
|
2773 | |
|
|
2774 | sigemptyset (&sigfd_set); |
|
|
2775 | |
|
|
2776 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2777 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2778 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2779 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2780 | } |
|
|
2781 | } |
|
|
2782 | |
|
|
2783 | if (sigfd >= 0) |
|
|
2784 | { |
|
|
2785 | /* TODO: check .head */ |
|
|
2786 | sigaddset (&sigfd_set, w->signum); |
|
|
2787 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2788 | |
|
|
2789 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2790 | } |
|
|
2791 | #endif |
|
|
2792 | |
1490 | ev_start (EV_A_ (W)w, ++idlecnt); |
2793 | ev_start (EV_A_ (W)w, 1); |
1491 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
2794 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1492 | idles [idlecnt - 1] = w; |
|
|
1493 | } |
|
|
1494 | |
2795 | |
1495 | void |
2796 | if (!((WL)w)->next) |
1496 | ev_idle_stop (EV_P_ struct ev_idle *w) |
2797 | # if EV_USE_SIGNALFD |
|
|
2798 | if (sigfd < 0) /*TODO*/ |
|
|
2799 | # endif |
|
|
2800 | { |
|
|
2801 | # ifdef _WIN32 |
|
|
2802 | evpipe_init (EV_A); |
|
|
2803 | |
|
|
2804 | signal (w->signum, ev_sighandler); |
|
|
2805 | # else |
|
|
2806 | struct sigaction sa; |
|
|
2807 | |
|
|
2808 | evpipe_init (EV_A); |
|
|
2809 | |
|
|
2810 | sa.sa_handler = ev_sighandler; |
|
|
2811 | sigfillset (&sa.sa_mask); |
|
|
2812 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
|
|
2813 | sigaction (w->signum, &sa, 0); |
|
|
2814 | |
|
|
2815 | sigemptyset (&sa.sa_mask); |
|
|
2816 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2817 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
2818 | #endif |
|
|
2819 | } |
|
|
2820 | |
|
|
2821 | EV_FREQUENT_CHECK; |
|
|
2822 | } |
|
|
2823 | |
|
|
2824 | void noinline |
|
|
2825 | ev_signal_stop (EV_P_ ev_signal *w) |
1497 | { |
2826 | { |
1498 | ev_clear_pending (EV_A_ (W)w); |
2827 | clear_pending (EV_A_ (W)w); |
1499 | if (expect_false (!ev_is_active (w))) |
2828 | if (expect_false (!ev_is_active (w))) |
1500 | return; |
2829 | return; |
1501 | |
2830 | |
1502 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
2831 | EV_FREQUENT_CHECK; |
|
|
2832 | |
|
|
2833 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1503 | ev_stop (EV_A_ (W)w); |
2834 | ev_stop (EV_A_ (W)w); |
1504 | } |
|
|
1505 | |
2835 | |
|
|
2836 | if (!signals [w->signum - 1].head) |
|
|
2837 | { |
|
|
2838 | #if EV_MULTIPLICITY |
|
|
2839 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2840 | #endif |
|
|
2841 | #if EV_USE_SIGNALFD |
|
|
2842 | if (sigfd >= 0) |
|
|
2843 | { |
|
|
2844 | sigset_t ss; |
|
|
2845 | |
|
|
2846 | sigemptyset (&ss); |
|
|
2847 | sigaddset (&ss, w->signum); |
|
|
2848 | sigdelset (&sigfd_set, w->signum); |
|
|
2849 | |
|
|
2850 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2851 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2852 | } |
|
|
2853 | else |
|
|
2854 | #endif |
|
|
2855 | signal (w->signum, SIG_DFL); |
|
|
2856 | } |
|
|
2857 | |
|
|
2858 | EV_FREQUENT_CHECK; |
|
|
2859 | } |
|
|
2860 | |
|
|
2861 | #endif |
|
|
2862 | |
|
|
2863 | #if EV_CHILD_ENABLE |
|
|
2864 | |
1506 | void |
2865 | void |
1507 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
2866 | ev_child_start (EV_P_ ev_child *w) |
1508 | { |
2867 | { |
|
|
2868 | #if EV_MULTIPLICITY |
|
|
2869 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2870 | #endif |
1509 | if (expect_false (ev_is_active (w))) |
2871 | if (expect_false (ev_is_active (w))) |
1510 | return; |
2872 | return; |
1511 | |
2873 | |
|
|
2874 | EV_FREQUENT_CHECK; |
|
|
2875 | |
1512 | ev_start (EV_A_ (W)w, ++preparecnt); |
2876 | ev_start (EV_A_ (W)w, 1); |
1513 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2877 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
1514 | prepares [preparecnt - 1] = w; |
|
|
1515 | } |
|
|
1516 | |
2878 | |
|
|
2879 | EV_FREQUENT_CHECK; |
|
|
2880 | } |
|
|
2881 | |
1517 | void |
2882 | void |
1518 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
2883 | ev_child_stop (EV_P_ ev_child *w) |
1519 | { |
2884 | { |
1520 | ev_clear_pending (EV_A_ (W)w); |
2885 | clear_pending (EV_A_ (W)w); |
1521 | if (expect_false (!ev_is_active (w))) |
2886 | if (expect_false (!ev_is_active (w))) |
1522 | return; |
2887 | return; |
1523 | |
2888 | |
1524 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
2889 | EV_FREQUENT_CHECK; |
|
|
2890 | |
|
|
2891 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
1525 | ev_stop (EV_A_ (W)w); |
2892 | ev_stop (EV_A_ (W)w); |
1526 | } |
|
|
1527 | |
2893 | |
|
|
2894 | EV_FREQUENT_CHECK; |
|
|
2895 | } |
|
|
2896 | |
|
|
2897 | #endif |
|
|
2898 | |
|
|
2899 | #if EV_STAT_ENABLE |
|
|
2900 | |
|
|
2901 | # ifdef _WIN32 |
|
|
2902 | # undef lstat |
|
|
2903 | # define lstat(a,b) _stati64 (a,b) |
|
|
2904 | # endif |
|
|
2905 | |
|
|
2906 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2907 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
|
|
2908 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2909 | |
|
|
2910 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2911 | |
|
|
2912 | #if EV_USE_INOTIFY |
|
|
2913 | |
|
|
2914 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2915 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
|
|
2916 | |
|
|
2917 | static void noinline |
|
|
2918 | infy_add (EV_P_ ev_stat *w) |
|
|
2919 | { |
|
|
2920 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
|
|
2921 | |
|
|
2922 | if (w->wd >= 0) |
|
|
2923 | { |
|
|
2924 | struct statfs sfs; |
|
|
2925 | |
|
|
2926 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2927 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2928 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2929 | |
|
|
2930 | if (!fs_2625) |
|
|
2931 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2932 | else if (!statfs (w->path, &sfs) |
|
|
2933 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2934 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2935 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2936 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2937 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2938 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2939 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2940 | else |
|
|
2941 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
|
|
2942 | } |
|
|
2943 | else |
|
|
2944 | { |
|
|
2945 | /* can't use inotify, continue to stat */ |
|
|
2946 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2947 | |
|
|
2948 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
2949 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2950 | /* but an efficiency issue only */ |
|
|
2951 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2952 | { |
|
|
2953 | char path [4096]; |
|
|
2954 | strcpy (path, w->path); |
|
|
2955 | |
|
|
2956 | do |
|
|
2957 | { |
|
|
2958 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2959 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2960 | |
|
|
2961 | char *pend = strrchr (path, '/'); |
|
|
2962 | |
|
|
2963 | if (!pend || pend == path) |
|
|
2964 | break; |
|
|
2965 | |
|
|
2966 | *pend = 0; |
|
|
2967 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2968 | } |
|
|
2969 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2970 | } |
|
|
2971 | } |
|
|
2972 | |
|
|
2973 | if (w->wd >= 0) |
|
|
2974 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
2975 | |
|
|
2976 | /* now re-arm timer, if required */ |
|
|
2977 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
2978 | ev_timer_again (EV_A_ &w->timer); |
|
|
2979 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
2980 | } |
|
|
2981 | |
|
|
2982 | static void noinline |
|
|
2983 | infy_del (EV_P_ ev_stat *w) |
|
|
2984 | { |
|
|
2985 | int slot; |
|
|
2986 | int wd = w->wd; |
|
|
2987 | |
|
|
2988 | if (wd < 0) |
|
|
2989 | return; |
|
|
2990 | |
|
|
2991 | w->wd = -2; |
|
|
2992 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
|
|
2993 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2994 | |
|
|
2995 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2996 | inotify_rm_watch (fs_fd, wd); |
|
|
2997 | } |
|
|
2998 | |
|
|
2999 | static void noinline |
|
|
3000 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
3001 | { |
|
|
3002 | if (slot < 0) |
|
|
3003 | /* overflow, need to check for all hash slots */ |
|
|
3004 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
|
|
3005 | infy_wd (EV_A_ slot, wd, ev); |
|
|
3006 | else |
|
|
3007 | { |
|
|
3008 | WL w_; |
|
|
3009 | |
|
|
3010 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
|
|
3011 | { |
|
|
3012 | ev_stat *w = (ev_stat *)w_; |
|
|
3013 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
3014 | |
|
|
3015 | if (w->wd == wd || wd == -1) |
|
|
3016 | { |
|
|
3017 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
3018 | { |
|
|
3019 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3020 | w->wd = -1; |
|
|
3021 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
3022 | } |
|
|
3023 | |
|
|
3024 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
3025 | } |
|
|
3026 | } |
|
|
3027 | } |
|
|
3028 | } |
|
|
3029 | |
|
|
3030 | static void |
|
|
3031 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
3032 | { |
|
|
3033 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
3034 | int ofs; |
|
|
3035 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
3036 | |
|
|
3037 | for (ofs = 0; ofs < len; ) |
|
|
3038 | { |
|
|
3039 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
|
|
3040 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3041 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3042 | } |
|
|
3043 | } |
|
|
3044 | |
|
|
3045 | inline_size unsigned int |
|
|
3046 | ev_linux_version (void) |
|
|
3047 | { |
|
|
3048 | struct utsname buf; |
|
|
3049 | unsigned int v; |
|
|
3050 | int i; |
|
|
3051 | char *p = buf.release; |
|
|
3052 | |
|
|
3053 | if (uname (&buf)) |
|
|
3054 | return 0; |
|
|
3055 | |
|
|
3056 | for (i = 3+1; --i; ) |
|
|
3057 | { |
|
|
3058 | unsigned int c = 0; |
|
|
3059 | |
|
|
3060 | for (;;) |
|
|
3061 | { |
|
|
3062 | if (*p >= '0' && *p <= '9') |
|
|
3063 | c = c * 10 + *p++ - '0'; |
|
|
3064 | else |
|
|
3065 | { |
|
|
3066 | p += *p == '.'; |
|
|
3067 | break; |
|
|
3068 | } |
|
|
3069 | } |
|
|
3070 | |
|
|
3071 | v = (v << 8) | c; |
|
|
3072 | } |
|
|
3073 | |
|
|
3074 | return v; |
|
|
3075 | } |
|
|
3076 | |
|
|
3077 | inline_size void |
|
|
3078 | ev_check_2625 (EV_P) |
|
|
3079 | { |
|
|
3080 | /* kernels < 2.6.25 are borked |
|
|
3081 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3082 | */ |
|
|
3083 | if (ev_linux_version () < 0x020619) |
|
|
3084 | return; |
|
|
3085 | |
|
|
3086 | fs_2625 = 1; |
|
|
3087 | } |
|
|
3088 | |
|
|
3089 | inline_size int |
|
|
3090 | infy_newfd (void) |
|
|
3091 | { |
|
|
3092 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3093 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3094 | if (fd >= 0) |
|
|
3095 | return fd; |
|
|
3096 | #endif |
|
|
3097 | return inotify_init (); |
|
|
3098 | } |
|
|
3099 | |
|
|
3100 | inline_size void |
|
|
3101 | infy_init (EV_P) |
|
|
3102 | { |
|
|
3103 | if (fs_fd != -2) |
|
|
3104 | return; |
|
|
3105 | |
|
|
3106 | fs_fd = -1; |
|
|
3107 | |
|
|
3108 | ev_check_2625 (EV_A); |
|
|
3109 | |
|
|
3110 | fs_fd = infy_newfd (); |
|
|
3111 | |
|
|
3112 | if (fs_fd >= 0) |
|
|
3113 | { |
|
|
3114 | fd_intern (fs_fd); |
|
|
3115 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
3116 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
3117 | ev_io_start (EV_A_ &fs_w); |
|
|
3118 | ev_unref (EV_A); |
|
|
3119 | } |
|
|
3120 | } |
|
|
3121 | |
|
|
3122 | inline_size void |
|
|
3123 | infy_fork (EV_P) |
|
|
3124 | { |
|
|
3125 | int slot; |
|
|
3126 | |
|
|
3127 | if (fs_fd < 0) |
|
|
3128 | return; |
|
|
3129 | |
|
|
3130 | ev_ref (EV_A); |
|
|
3131 | ev_io_stop (EV_A_ &fs_w); |
|
|
3132 | close (fs_fd); |
|
|
3133 | fs_fd = infy_newfd (); |
|
|
3134 | |
|
|
3135 | if (fs_fd >= 0) |
|
|
3136 | { |
|
|
3137 | fd_intern (fs_fd); |
|
|
3138 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3139 | ev_io_start (EV_A_ &fs_w); |
|
|
3140 | ev_unref (EV_A); |
|
|
3141 | } |
|
|
3142 | |
|
|
3143 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
|
|
3144 | { |
|
|
3145 | WL w_ = fs_hash [slot].head; |
|
|
3146 | fs_hash [slot].head = 0; |
|
|
3147 | |
|
|
3148 | while (w_) |
|
|
3149 | { |
|
|
3150 | ev_stat *w = (ev_stat *)w_; |
|
|
3151 | w_ = w_->next; /* lets us add this watcher */ |
|
|
3152 | |
|
|
3153 | w->wd = -1; |
|
|
3154 | |
|
|
3155 | if (fs_fd >= 0) |
|
|
3156 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
3157 | else |
|
|
3158 | { |
|
|
3159 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3160 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3161 | ev_timer_again (EV_A_ &w->timer); |
|
|
3162 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3163 | } |
|
|
3164 | } |
|
|
3165 | } |
|
|
3166 | } |
|
|
3167 | |
|
|
3168 | #endif |
|
|
3169 | |
|
|
3170 | #ifdef _WIN32 |
|
|
3171 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3172 | #else |
|
|
3173 | # define EV_LSTAT(p,b) lstat (p, b) |
|
|
3174 | #endif |
|
|
3175 | |
1528 | void |
3176 | void |
1529 | ev_check_start (EV_P_ struct ev_check *w) |
3177 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
3178 | { |
|
|
3179 | if (lstat (w->path, &w->attr) < 0) |
|
|
3180 | w->attr.st_nlink = 0; |
|
|
3181 | else if (!w->attr.st_nlink) |
|
|
3182 | w->attr.st_nlink = 1; |
|
|
3183 | } |
|
|
3184 | |
|
|
3185 | static void noinline |
|
|
3186 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
3187 | { |
|
|
3188 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
3189 | |
|
|
3190 | ev_statdata prev = w->attr; |
|
|
3191 | ev_stat_stat (EV_A_ w); |
|
|
3192 | |
|
|
3193 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
3194 | if ( |
|
|
3195 | prev.st_dev != w->attr.st_dev |
|
|
3196 | || prev.st_ino != w->attr.st_ino |
|
|
3197 | || prev.st_mode != w->attr.st_mode |
|
|
3198 | || prev.st_nlink != w->attr.st_nlink |
|
|
3199 | || prev.st_uid != w->attr.st_uid |
|
|
3200 | || prev.st_gid != w->attr.st_gid |
|
|
3201 | || prev.st_rdev != w->attr.st_rdev |
|
|
3202 | || prev.st_size != w->attr.st_size |
|
|
3203 | || prev.st_atime != w->attr.st_atime |
|
|
3204 | || prev.st_mtime != w->attr.st_mtime |
|
|
3205 | || prev.st_ctime != w->attr.st_ctime |
|
|
3206 | ) { |
|
|
3207 | /* we only update w->prev on actual differences */ |
|
|
3208 | /* in case we test more often than invoke the callback, */ |
|
|
3209 | /* to ensure that prev is always different to attr */ |
|
|
3210 | w->prev = prev; |
|
|
3211 | |
|
|
3212 | #if EV_USE_INOTIFY |
|
|
3213 | if (fs_fd >= 0) |
|
|
3214 | { |
|
|
3215 | infy_del (EV_A_ w); |
|
|
3216 | infy_add (EV_A_ w); |
|
|
3217 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3218 | } |
|
|
3219 | #endif |
|
|
3220 | |
|
|
3221 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
3222 | } |
|
|
3223 | } |
|
|
3224 | |
|
|
3225 | void |
|
|
3226 | ev_stat_start (EV_P_ ev_stat *w) |
1530 | { |
3227 | { |
1531 | if (expect_false (ev_is_active (w))) |
3228 | if (expect_false (ev_is_active (w))) |
1532 | return; |
3229 | return; |
1533 | |
3230 | |
|
|
3231 | ev_stat_stat (EV_A_ w); |
|
|
3232 | |
|
|
3233 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
|
|
3234 | w->interval = MIN_STAT_INTERVAL; |
|
|
3235 | |
|
|
3236 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
|
|
3237 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
3238 | |
|
|
3239 | #if EV_USE_INOTIFY |
|
|
3240 | infy_init (EV_A); |
|
|
3241 | |
|
|
3242 | if (fs_fd >= 0) |
|
|
3243 | infy_add (EV_A_ w); |
|
|
3244 | else |
|
|
3245 | #endif |
|
|
3246 | { |
|
|
3247 | ev_timer_again (EV_A_ &w->timer); |
|
|
3248 | ev_unref (EV_A); |
|
|
3249 | } |
|
|
3250 | |
1534 | ev_start (EV_A_ (W)w, ++checkcnt); |
3251 | ev_start (EV_A_ (W)w, 1); |
1535 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1536 | checks [checkcnt - 1] = w; |
|
|
1537 | } |
|
|
1538 | |
3252 | |
|
|
3253 | EV_FREQUENT_CHECK; |
|
|
3254 | } |
|
|
3255 | |
1539 | void |
3256 | void |
1540 | ev_check_stop (EV_P_ struct ev_check *w) |
3257 | ev_stat_stop (EV_P_ ev_stat *w) |
1541 | { |
3258 | { |
1542 | ev_clear_pending (EV_A_ (W)w); |
3259 | clear_pending (EV_A_ (W)w); |
1543 | if (expect_false (!ev_is_active (w))) |
3260 | if (expect_false (!ev_is_active (w))) |
1544 | return; |
3261 | return; |
1545 | |
3262 | |
1546 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
3263 | EV_FREQUENT_CHECK; |
|
|
3264 | |
|
|
3265 | #if EV_USE_INOTIFY |
|
|
3266 | infy_del (EV_A_ w); |
|
|
3267 | #endif |
|
|
3268 | |
|
|
3269 | if (ev_is_active (&w->timer)) |
|
|
3270 | { |
|
|
3271 | ev_ref (EV_A); |
|
|
3272 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3273 | } |
|
|
3274 | |
1547 | ev_stop (EV_A_ (W)w); |
3275 | ev_stop (EV_A_ (W)w); |
1548 | } |
|
|
1549 | |
3276 | |
1550 | #ifndef SA_RESTART |
3277 | EV_FREQUENT_CHECK; |
1551 | # define SA_RESTART 0 |
3278 | } |
1552 | #endif |
3279 | #endif |
1553 | |
3280 | |
|
|
3281 | #if EV_IDLE_ENABLE |
1554 | void |
3282 | void |
1555 | ev_signal_start (EV_P_ struct ev_signal *w) |
3283 | ev_idle_start (EV_P_ ev_idle *w) |
1556 | { |
3284 | { |
1557 | #if EV_MULTIPLICITY |
|
|
1558 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1559 | #endif |
|
|
1560 | if (expect_false (ev_is_active (w))) |
3285 | if (expect_false (ev_is_active (w))) |
1561 | return; |
3286 | return; |
1562 | |
3287 | |
1563 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
3288 | pri_adjust (EV_A_ (W)w); |
1564 | |
3289 | |
|
|
3290 | EV_FREQUENT_CHECK; |
|
|
3291 | |
|
|
3292 | { |
|
|
3293 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
3294 | |
|
|
3295 | ++idleall; |
1565 | ev_start (EV_A_ (W)w, 1); |
3296 | ev_start (EV_A_ (W)w, active); |
1566 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1567 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
|
|
1568 | |
3297 | |
1569 | if (!((WL)w)->next) |
3298 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
1570 | { |
3299 | idles [ABSPRI (w)][active - 1] = w; |
1571 | #if _WIN32 |
|
|
1572 | signal (w->signum, sighandler); |
|
|
1573 | #else |
|
|
1574 | struct sigaction sa; |
|
|
1575 | sa.sa_handler = sighandler; |
|
|
1576 | sigfillset (&sa.sa_mask); |
|
|
1577 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
|
|
1578 | sigaction (w->signum, &sa, 0); |
|
|
1579 | #endif |
|
|
1580 | } |
3300 | } |
1581 | } |
|
|
1582 | |
3301 | |
|
|
3302 | EV_FREQUENT_CHECK; |
|
|
3303 | } |
|
|
3304 | |
1583 | void |
3305 | void |
1584 | ev_signal_stop (EV_P_ struct ev_signal *w) |
3306 | ev_idle_stop (EV_P_ ev_idle *w) |
1585 | { |
3307 | { |
1586 | ev_clear_pending (EV_A_ (W)w); |
3308 | clear_pending (EV_A_ (W)w); |
1587 | if (expect_false (!ev_is_active (w))) |
3309 | if (expect_false (!ev_is_active (w))) |
1588 | return; |
3310 | return; |
1589 | |
3311 | |
1590 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
3312 | EV_FREQUENT_CHECK; |
|
|
3313 | |
|
|
3314 | { |
|
|
3315 | int active = ev_active (w); |
|
|
3316 | |
|
|
3317 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
3318 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
3319 | |
1591 | ev_stop (EV_A_ (W)w); |
3320 | ev_stop (EV_A_ (W)w); |
|
|
3321 | --idleall; |
|
|
3322 | } |
1592 | |
3323 | |
1593 | if (!signals [w->signum - 1].head) |
3324 | EV_FREQUENT_CHECK; |
1594 | signal (w->signum, SIG_DFL); |
|
|
1595 | } |
3325 | } |
1596 | |
|
|
1597 | void |
|
|
1598 | ev_child_start (EV_P_ struct ev_child *w) |
|
|
1599 | { |
|
|
1600 | #if EV_MULTIPLICITY |
|
|
1601 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1602 | #endif |
3326 | #endif |
|
|
3327 | |
|
|
3328 | #if EV_PREPARE_ENABLE |
|
|
3329 | void |
|
|
3330 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
3331 | { |
1603 | if (expect_false (ev_is_active (w))) |
3332 | if (expect_false (ev_is_active (w))) |
1604 | return; |
3333 | return; |
1605 | |
3334 | |
|
|
3335 | EV_FREQUENT_CHECK; |
|
|
3336 | |
1606 | ev_start (EV_A_ (W)w, 1); |
3337 | ev_start (EV_A_ (W)w, ++preparecnt); |
1607 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
3338 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1608 | } |
3339 | prepares [preparecnt - 1] = w; |
1609 | |
3340 | |
|
|
3341 | EV_FREQUENT_CHECK; |
|
|
3342 | } |
|
|
3343 | |
1610 | void |
3344 | void |
1611 | ev_child_stop (EV_P_ struct ev_child *w) |
3345 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1612 | { |
3346 | { |
1613 | ev_clear_pending (EV_A_ (W)w); |
3347 | clear_pending (EV_A_ (W)w); |
1614 | if (expect_false (!ev_is_active (w))) |
3348 | if (expect_false (!ev_is_active (w))) |
1615 | return; |
3349 | return; |
1616 | |
3350 | |
1617 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
3351 | EV_FREQUENT_CHECK; |
|
|
3352 | |
|
|
3353 | { |
|
|
3354 | int active = ev_active (w); |
|
|
3355 | |
|
|
3356 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
3357 | ev_active (prepares [active - 1]) = active; |
|
|
3358 | } |
|
|
3359 | |
1618 | ev_stop (EV_A_ (W)w); |
3360 | ev_stop (EV_A_ (W)w); |
|
|
3361 | |
|
|
3362 | EV_FREQUENT_CHECK; |
1619 | } |
3363 | } |
|
|
3364 | #endif |
|
|
3365 | |
|
|
3366 | #if EV_CHECK_ENABLE |
|
|
3367 | void |
|
|
3368 | ev_check_start (EV_P_ ev_check *w) |
|
|
3369 | { |
|
|
3370 | if (expect_false (ev_is_active (w))) |
|
|
3371 | return; |
|
|
3372 | |
|
|
3373 | EV_FREQUENT_CHECK; |
|
|
3374 | |
|
|
3375 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
3376 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
3377 | checks [checkcnt - 1] = w; |
|
|
3378 | |
|
|
3379 | EV_FREQUENT_CHECK; |
|
|
3380 | } |
|
|
3381 | |
|
|
3382 | void |
|
|
3383 | ev_check_stop (EV_P_ ev_check *w) |
|
|
3384 | { |
|
|
3385 | clear_pending (EV_A_ (W)w); |
|
|
3386 | if (expect_false (!ev_is_active (w))) |
|
|
3387 | return; |
|
|
3388 | |
|
|
3389 | EV_FREQUENT_CHECK; |
|
|
3390 | |
|
|
3391 | { |
|
|
3392 | int active = ev_active (w); |
|
|
3393 | |
|
|
3394 | checks [active - 1] = checks [--checkcnt]; |
|
|
3395 | ev_active (checks [active - 1]) = active; |
|
|
3396 | } |
|
|
3397 | |
|
|
3398 | ev_stop (EV_A_ (W)w); |
|
|
3399 | |
|
|
3400 | EV_FREQUENT_CHECK; |
|
|
3401 | } |
|
|
3402 | #endif |
|
|
3403 | |
|
|
3404 | #if EV_EMBED_ENABLE |
|
|
3405 | void noinline |
|
|
3406 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
3407 | { |
|
|
3408 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
3409 | } |
|
|
3410 | |
|
|
3411 | static void |
|
|
3412 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
3413 | { |
|
|
3414 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
3415 | |
|
|
3416 | if (ev_cb (w)) |
|
|
3417 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
3418 | else |
|
|
3419 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
3420 | } |
|
|
3421 | |
|
|
3422 | static void |
|
|
3423 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
3424 | { |
|
|
3425 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
3426 | |
|
|
3427 | { |
|
|
3428 | EV_P = w->other; |
|
|
3429 | |
|
|
3430 | while (fdchangecnt) |
|
|
3431 | { |
|
|
3432 | fd_reify (EV_A); |
|
|
3433 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3434 | } |
|
|
3435 | } |
|
|
3436 | } |
|
|
3437 | |
|
|
3438 | static void |
|
|
3439 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3440 | { |
|
|
3441 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3442 | |
|
|
3443 | ev_embed_stop (EV_A_ w); |
|
|
3444 | |
|
|
3445 | { |
|
|
3446 | EV_P = w->other; |
|
|
3447 | |
|
|
3448 | ev_loop_fork (EV_A); |
|
|
3449 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3450 | } |
|
|
3451 | |
|
|
3452 | ev_embed_start (EV_A_ w); |
|
|
3453 | } |
|
|
3454 | |
|
|
3455 | #if 0 |
|
|
3456 | static void |
|
|
3457 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
3458 | { |
|
|
3459 | ev_idle_stop (EV_A_ idle); |
|
|
3460 | } |
|
|
3461 | #endif |
|
|
3462 | |
|
|
3463 | void |
|
|
3464 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
3465 | { |
|
|
3466 | if (expect_false (ev_is_active (w))) |
|
|
3467 | return; |
|
|
3468 | |
|
|
3469 | { |
|
|
3470 | EV_P = w->other; |
|
|
3471 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
3472 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
3473 | } |
|
|
3474 | |
|
|
3475 | EV_FREQUENT_CHECK; |
|
|
3476 | |
|
|
3477 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
3478 | ev_io_start (EV_A_ &w->io); |
|
|
3479 | |
|
|
3480 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
3481 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
3482 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
3483 | |
|
|
3484 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3485 | ev_fork_start (EV_A_ &w->fork); |
|
|
3486 | |
|
|
3487 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
3488 | |
|
|
3489 | ev_start (EV_A_ (W)w, 1); |
|
|
3490 | |
|
|
3491 | EV_FREQUENT_CHECK; |
|
|
3492 | } |
|
|
3493 | |
|
|
3494 | void |
|
|
3495 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
3496 | { |
|
|
3497 | clear_pending (EV_A_ (W)w); |
|
|
3498 | if (expect_false (!ev_is_active (w))) |
|
|
3499 | return; |
|
|
3500 | |
|
|
3501 | EV_FREQUENT_CHECK; |
|
|
3502 | |
|
|
3503 | ev_io_stop (EV_A_ &w->io); |
|
|
3504 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3505 | ev_fork_stop (EV_A_ &w->fork); |
|
|
3506 | |
|
|
3507 | ev_stop (EV_A_ (W)w); |
|
|
3508 | |
|
|
3509 | EV_FREQUENT_CHECK; |
|
|
3510 | } |
|
|
3511 | #endif |
|
|
3512 | |
|
|
3513 | #if EV_FORK_ENABLE |
|
|
3514 | void |
|
|
3515 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
3516 | { |
|
|
3517 | if (expect_false (ev_is_active (w))) |
|
|
3518 | return; |
|
|
3519 | |
|
|
3520 | EV_FREQUENT_CHECK; |
|
|
3521 | |
|
|
3522 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
3523 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
3524 | forks [forkcnt - 1] = w; |
|
|
3525 | |
|
|
3526 | EV_FREQUENT_CHECK; |
|
|
3527 | } |
|
|
3528 | |
|
|
3529 | void |
|
|
3530 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
3531 | { |
|
|
3532 | clear_pending (EV_A_ (W)w); |
|
|
3533 | if (expect_false (!ev_is_active (w))) |
|
|
3534 | return; |
|
|
3535 | |
|
|
3536 | EV_FREQUENT_CHECK; |
|
|
3537 | |
|
|
3538 | { |
|
|
3539 | int active = ev_active (w); |
|
|
3540 | |
|
|
3541 | forks [active - 1] = forks [--forkcnt]; |
|
|
3542 | ev_active (forks [active - 1]) = active; |
|
|
3543 | } |
|
|
3544 | |
|
|
3545 | ev_stop (EV_A_ (W)w); |
|
|
3546 | |
|
|
3547 | EV_FREQUENT_CHECK; |
|
|
3548 | } |
|
|
3549 | #endif |
|
|
3550 | |
|
|
3551 | #if EV_ASYNC_ENABLE |
|
|
3552 | void |
|
|
3553 | ev_async_start (EV_P_ ev_async *w) |
|
|
3554 | { |
|
|
3555 | if (expect_false (ev_is_active (w))) |
|
|
3556 | return; |
|
|
3557 | |
|
|
3558 | evpipe_init (EV_A); |
|
|
3559 | |
|
|
3560 | EV_FREQUENT_CHECK; |
|
|
3561 | |
|
|
3562 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3563 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3564 | asyncs [asynccnt - 1] = w; |
|
|
3565 | |
|
|
3566 | EV_FREQUENT_CHECK; |
|
|
3567 | } |
|
|
3568 | |
|
|
3569 | void |
|
|
3570 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3571 | { |
|
|
3572 | clear_pending (EV_A_ (W)w); |
|
|
3573 | if (expect_false (!ev_is_active (w))) |
|
|
3574 | return; |
|
|
3575 | |
|
|
3576 | EV_FREQUENT_CHECK; |
|
|
3577 | |
|
|
3578 | { |
|
|
3579 | int active = ev_active (w); |
|
|
3580 | |
|
|
3581 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3582 | ev_active (asyncs [active - 1]) = active; |
|
|
3583 | } |
|
|
3584 | |
|
|
3585 | ev_stop (EV_A_ (W)w); |
|
|
3586 | |
|
|
3587 | EV_FREQUENT_CHECK; |
|
|
3588 | } |
|
|
3589 | |
|
|
3590 | void |
|
|
3591 | ev_async_send (EV_P_ ev_async *w) |
|
|
3592 | { |
|
|
3593 | w->sent = 1; |
|
|
3594 | evpipe_write (EV_A_ &async_pending); |
|
|
3595 | } |
|
|
3596 | #endif |
1620 | |
3597 | |
1621 | /*****************************************************************************/ |
3598 | /*****************************************************************************/ |
1622 | |
3599 | |
1623 | struct ev_once |
3600 | struct ev_once |
1624 | { |
3601 | { |
1625 | struct ev_io io; |
3602 | ev_io io; |
1626 | struct ev_timer to; |
3603 | ev_timer to; |
1627 | void (*cb)(int revents, void *arg); |
3604 | void (*cb)(int revents, void *arg); |
1628 | void *arg; |
3605 | void *arg; |
1629 | }; |
3606 | }; |
1630 | |
3607 | |
1631 | static void |
3608 | static void |
1632 | once_cb (EV_P_ struct ev_once *once, int revents) |
3609 | once_cb (EV_P_ struct ev_once *once, int revents) |
1633 | { |
3610 | { |
1634 | void (*cb)(int revents, void *arg) = once->cb; |
3611 | void (*cb)(int revents, void *arg) = once->cb; |
1635 | void *arg = once->arg; |
3612 | void *arg = once->arg; |
1636 | |
3613 | |
1637 | ev_io_stop (EV_A_ &once->io); |
3614 | ev_io_stop (EV_A_ &once->io); |
1638 | ev_timer_stop (EV_A_ &once->to); |
3615 | ev_timer_stop (EV_A_ &once->to); |
1639 | ev_free (once); |
3616 | ev_free (once); |
1640 | |
3617 | |
1641 | cb (revents, arg); |
3618 | cb (revents, arg); |
1642 | } |
3619 | } |
1643 | |
3620 | |
1644 | static void |
3621 | static void |
1645 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
3622 | once_cb_io (EV_P_ ev_io *w, int revents) |
1646 | { |
3623 | { |
1647 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3624 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3625 | |
|
|
3626 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
1648 | } |
3627 | } |
1649 | |
3628 | |
1650 | static void |
3629 | static void |
1651 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
3630 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1652 | { |
3631 | { |
1653 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3632 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3633 | |
|
|
3634 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
1654 | } |
3635 | } |
1655 | |
3636 | |
1656 | void |
3637 | void |
1657 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3638 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1658 | { |
3639 | { |
1659 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3640 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1660 | |
3641 | |
1661 | if (expect_false (!once)) |
3642 | if (expect_false (!once)) |
1662 | { |
3643 | { |
1663 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3644 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
1664 | return; |
3645 | return; |
1665 | } |
3646 | } |
1666 | |
3647 | |
1667 | once->cb = cb; |
3648 | once->cb = cb; |
1668 | once->arg = arg; |
3649 | once->arg = arg; |
… | |
… | |
1680 | ev_timer_set (&once->to, timeout, 0.); |
3661 | ev_timer_set (&once->to, timeout, 0.); |
1681 | ev_timer_start (EV_A_ &once->to); |
3662 | ev_timer_start (EV_A_ &once->to); |
1682 | } |
3663 | } |
1683 | } |
3664 | } |
1684 | |
3665 | |
|
|
3666 | /*****************************************************************************/ |
|
|
3667 | |
|
|
3668 | #if EV_WALK_ENABLE |
|
|
3669 | void |
|
|
3670 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3671 | { |
|
|
3672 | int i, j; |
|
|
3673 | ev_watcher_list *wl, *wn; |
|
|
3674 | |
|
|
3675 | if (types & (EV_IO | EV_EMBED)) |
|
|
3676 | for (i = 0; i < anfdmax; ++i) |
|
|
3677 | for (wl = anfds [i].head; wl; ) |
|
|
3678 | { |
|
|
3679 | wn = wl->next; |
|
|
3680 | |
|
|
3681 | #if EV_EMBED_ENABLE |
|
|
3682 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3683 | { |
|
|
3684 | if (types & EV_EMBED) |
|
|
3685 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3686 | } |
|
|
3687 | else |
|
|
3688 | #endif |
|
|
3689 | #if EV_USE_INOTIFY |
|
|
3690 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3691 | ; |
|
|
3692 | else |
|
|
3693 | #endif |
|
|
3694 | if ((ev_io *)wl != &pipe_w) |
|
|
3695 | if (types & EV_IO) |
|
|
3696 | cb (EV_A_ EV_IO, wl); |
|
|
3697 | |
|
|
3698 | wl = wn; |
|
|
3699 | } |
|
|
3700 | |
|
|
3701 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3702 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3703 | #if EV_STAT_ENABLE |
|
|
3704 | /*TODO: timer is not always active*/ |
|
|
3705 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3706 | { |
|
|
3707 | if (types & EV_STAT) |
|
|
3708 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3709 | } |
|
|
3710 | else |
|
|
3711 | #endif |
|
|
3712 | if (types & EV_TIMER) |
|
|
3713 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3714 | |
|
|
3715 | #if EV_PERIODIC_ENABLE |
|
|
3716 | if (types & EV_PERIODIC) |
|
|
3717 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3718 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3719 | #endif |
|
|
3720 | |
|
|
3721 | #if EV_IDLE_ENABLE |
|
|
3722 | if (types & EV_IDLE) |
|
|
3723 | for (j = NUMPRI; i--; ) |
|
|
3724 | for (i = idlecnt [j]; i--; ) |
|
|
3725 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3726 | #endif |
|
|
3727 | |
|
|
3728 | #if EV_FORK_ENABLE |
|
|
3729 | if (types & EV_FORK) |
|
|
3730 | for (i = forkcnt; i--; ) |
|
|
3731 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3732 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3733 | #endif |
|
|
3734 | |
|
|
3735 | #if EV_ASYNC_ENABLE |
|
|
3736 | if (types & EV_ASYNC) |
|
|
3737 | for (i = asynccnt; i--; ) |
|
|
3738 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3739 | #endif |
|
|
3740 | |
|
|
3741 | #if EV_PREPARE_ENABLE |
|
|
3742 | if (types & EV_PREPARE) |
|
|
3743 | for (i = preparecnt; i--; ) |
|
|
3744 | # if EV_EMBED_ENABLE |
|
|
3745 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3746 | # endif |
|
|
3747 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3748 | #endif |
|
|
3749 | |
|
|
3750 | #if EV_CHECK_ENABLE |
|
|
3751 | if (types & EV_CHECK) |
|
|
3752 | for (i = checkcnt; i--; ) |
|
|
3753 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3754 | #endif |
|
|
3755 | |
|
|
3756 | #if EV_SIGNAL_ENABLE |
|
|
3757 | if (types & EV_SIGNAL) |
|
|
3758 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3759 | for (wl = signals [i].head; wl; ) |
|
|
3760 | { |
|
|
3761 | wn = wl->next; |
|
|
3762 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3763 | wl = wn; |
|
|
3764 | } |
|
|
3765 | #endif |
|
|
3766 | |
|
|
3767 | #if EV_CHILD_ENABLE |
|
|
3768 | if (types & EV_CHILD) |
|
|
3769 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3770 | for (wl = childs [i]; wl; ) |
|
|
3771 | { |
|
|
3772 | wn = wl->next; |
|
|
3773 | cb (EV_A_ EV_CHILD, wl); |
|
|
3774 | wl = wn; |
|
|
3775 | } |
|
|
3776 | #endif |
|
|
3777 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3778 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3779 | } |
|
|
3780 | #endif |
|
|
3781 | |
|
|
3782 | #if EV_MULTIPLICITY |
|
|
3783 | #include "ev_wrap.h" |
|
|
3784 | #endif |
|
|
3785 | |
1685 | #ifdef __cplusplus |
3786 | #ifdef __cplusplus |
1686 | } |
3787 | } |
1687 | #endif |
3788 | #endif |
1688 | |
3789 | |