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 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 | */ |
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39 | |
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40 | #ifdef __cplusplus |
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41 | extern "C" { |
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42 | #endif |
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43 | |
31 | #ifndef EV_STANDALONE |
44 | #ifndef EV_STANDALONE |
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45 | # ifdef EV_CONFIG_H |
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46 | # include EV_CONFIG_H |
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47 | # else |
32 | # include "config.h" |
48 | # include "config.h" |
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49 | # endif |
33 | |
50 | |
34 | # if HAVE_CLOCK_GETTIME |
51 | # if HAVE_CLOCK_GETTIME |
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52 | # ifndef EV_USE_MONOTONIC |
35 | # define EV_USE_MONOTONIC 1 |
53 | # define EV_USE_MONOTONIC 1 |
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54 | # endif |
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55 | # ifndef EV_USE_REALTIME |
36 | # define EV_USE_REALTIME 1 |
56 | # define EV_USE_REALTIME 1 |
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57 | # endif |
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58 | # else |
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59 | # ifndef EV_USE_MONOTONIC |
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60 | # define EV_USE_MONOTONIC 0 |
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61 | # endif |
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62 | # ifndef EV_USE_REALTIME |
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63 | # define EV_USE_REALTIME 0 |
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64 | # endif |
37 | # endif |
65 | # endif |
38 | |
66 | |
39 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
67 | # ifndef EV_USE_NANOSLEEP |
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68 | # if HAVE_NANOSLEEP |
40 | # define EV_USE_SELECT 1 |
69 | # define EV_USE_NANOSLEEP 1 |
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70 | # else |
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71 | # define EV_USE_NANOSLEEP 0 |
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72 | # endif |
41 | # endif |
73 | # endif |
42 | |
74 | |
43 | # if HAVE_POLL && HAVE_POLL_H |
75 | # ifndef EV_USE_SELECT |
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76 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
44 | # define EV_USE_POLL 1 |
77 | # define EV_USE_SELECT 1 |
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78 | # else |
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79 | # define EV_USE_SELECT 0 |
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80 | # endif |
45 | # endif |
81 | # endif |
46 | |
82 | |
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
83 | # ifndef EV_USE_POLL |
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84 | # if HAVE_POLL && HAVE_POLL_H |
48 | # define EV_USE_EPOLL 1 |
85 | # define EV_USE_POLL 1 |
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86 | # else |
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87 | # define EV_USE_POLL 0 |
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88 | # endif |
49 | # endif |
89 | # endif |
50 | |
90 | |
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91 | # ifndef EV_USE_EPOLL |
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92 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
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93 | # define EV_USE_EPOLL 1 |
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94 | # else |
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95 | # define EV_USE_EPOLL 0 |
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96 | # endif |
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97 | # endif |
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98 | |
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99 | # ifndef EV_USE_KQUEUE |
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
100 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
52 | # define EV_USE_KQUEUE 1 |
101 | # define EV_USE_KQUEUE 1 |
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102 | # else |
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103 | # define EV_USE_KQUEUE 0 |
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104 | # endif |
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105 | # endif |
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106 | |
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107 | # ifndef EV_USE_PORT |
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108 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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109 | # define EV_USE_PORT 1 |
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110 | # else |
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111 | # define EV_USE_PORT 0 |
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112 | # endif |
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113 | # endif |
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114 | |
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115 | # ifndef EV_USE_INOTIFY |
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116 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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117 | # define EV_USE_INOTIFY 1 |
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118 | # else |
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119 | # define EV_USE_INOTIFY 0 |
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120 | # endif |
53 | # endif |
121 | # endif |
54 | |
122 | |
55 | #endif |
123 | #endif |
56 | |
124 | |
57 | #include <math.h> |
125 | #include <math.h> |
58 | #include <stdlib.h> |
126 | #include <stdlib.h> |
59 | #include <unistd.h> |
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60 | #include <fcntl.h> |
127 | #include <fcntl.h> |
61 | #include <signal.h> |
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62 | #include <stddef.h> |
128 | #include <stddef.h> |
63 | |
129 | |
64 | #include <stdio.h> |
130 | #include <stdio.h> |
65 | |
131 | |
66 | #include <assert.h> |
132 | #include <assert.h> |
67 | #include <errno.h> |
133 | #include <errno.h> |
68 | #include <sys/types.h> |
134 | #include <sys/types.h> |
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135 | #include <time.h> |
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136 | |
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137 | #include <signal.h> |
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138 | |
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139 | #ifdef EV_H |
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140 | # include EV_H |
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141 | #else |
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142 | # include "ev.h" |
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143 | #endif |
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144 | |
69 | #ifndef WIN32 |
145 | #ifndef _WIN32 |
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146 | # include <sys/time.h> |
70 | # include <sys/wait.h> |
147 | # include <sys/wait.h> |
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148 | # include <unistd.h> |
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149 | #else |
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150 | # define WIN32_LEAN_AND_MEAN |
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151 | # include <windows.h> |
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152 | # ifndef EV_SELECT_IS_WINSOCKET |
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153 | # define EV_SELECT_IS_WINSOCKET 1 |
71 | #endif |
154 | # endif |
72 | #include <sys/time.h> |
155 | #endif |
73 | #include <time.h> |
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74 | |
156 | |
75 | /**/ |
157 | /**/ |
76 | |
158 | |
77 | #ifndef EV_USE_MONOTONIC |
159 | #ifndef EV_USE_MONOTONIC |
78 | # define EV_USE_MONOTONIC 1 |
160 | # define EV_USE_MONOTONIC 0 |
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161 | #endif |
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162 | |
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163 | #ifndef EV_USE_REALTIME |
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164 | # define EV_USE_REALTIME 0 |
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165 | #endif |
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166 | |
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167 | #ifndef EV_USE_NANOSLEEP |
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168 | # define EV_USE_NANOSLEEP 0 |
79 | #endif |
169 | #endif |
80 | |
170 | |
81 | #ifndef EV_USE_SELECT |
171 | #ifndef EV_USE_SELECT |
82 | # define EV_USE_SELECT 1 |
172 | # define EV_USE_SELECT 1 |
83 | #endif |
173 | #endif |
84 | |
174 | |
85 | #ifndef EV_USE_POLL |
175 | #ifndef EV_USE_POLL |
86 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
176 | # ifdef _WIN32 |
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177 | # define EV_USE_POLL 0 |
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178 | # else |
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179 | # define EV_USE_POLL 1 |
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180 | # endif |
87 | #endif |
181 | #endif |
88 | |
182 | |
89 | #ifndef EV_USE_EPOLL |
183 | #ifndef EV_USE_EPOLL |
90 | # define EV_USE_EPOLL 0 |
184 | # define EV_USE_EPOLL 0 |
91 | #endif |
185 | #endif |
92 | |
186 | |
93 | #ifndef EV_USE_KQUEUE |
187 | #ifndef EV_USE_KQUEUE |
94 | # define EV_USE_KQUEUE 0 |
188 | # define EV_USE_KQUEUE 0 |
95 | #endif |
189 | #endif |
96 | |
190 | |
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191 | #ifndef EV_USE_PORT |
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192 | # define EV_USE_PORT 0 |
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193 | #endif |
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194 | |
97 | #ifndef EV_USE_WIN32 |
195 | #ifndef EV_USE_INOTIFY |
98 | # ifdef WIN32 |
196 | # define EV_USE_INOTIFY 0 |
99 | # define EV_USE_WIN32 1 |
197 | #endif |
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198 | |
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199 | #ifndef EV_PID_HASHSIZE |
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200 | # if EV_MINIMAL |
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201 | # define EV_PID_HASHSIZE 1 |
100 | # else |
202 | # else |
101 | # define EV_USE_WIN32 0 |
203 | # define EV_PID_HASHSIZE 16 |
102 | # endif |
204 | # endif |
103 | #endif |
205 | #endif |
104 | |
206 | |
105 | #ifndef EV_USE_REALTIME |
207 | #ifndef EV_INOTIFY_HASHSIZE |
106 | # define EV_USE_REALTIME 1 |
208 | # if EV_MINIMAL |
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209 | # define EV_INOTIFY_HASHSIZE 1 |
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210 | # else |
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211 | # define EV_INOTIFY_HASHSIZE 16 |
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212 | # endif |
107 | #endif |
213 | #endif |
108 | |
214 | |
109 | /**/ |
215 | /**/ |
110 | |
216 | |
111 | #ifndef CLOCK_MONOTONIC |
217 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
116 | #ifndef CLOCK_REALTIME |
222 | #ifndef CLOCK_REALTIME |
117 | # undef EV_USE_REALTIME |
223 | # undef EV_USE_REALTIME |
118 | # define EV_USE_REALTIME 0 |
224 | # define EV_USE_REALTIME 0 |
119 | #endif |
225 | #endif |
120 | |
226 | |
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227 | #if !EV_STAT_ENABLE |
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228 | # undef EV_USE_INOTIFY |
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229 | # define EV_USE_INOTIFY 0 |
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230 | #endif |
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231 | |
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232 | #if !EV_USE_NANOSLEEP |
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233 | # ifndef _WIN32 |
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234 | # include <sys/select.h> |
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235 | # endif |
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236 | #endif |
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237 | |
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238 | #if EV_USE_INOTIFY |
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239 | # include <sys/inotify.h> |
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240 | #endif |
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241 | |
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242 | #if EV_SELECT_IS_WINSOCKET |
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243 | # include <winsock.h> |
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244 | #endif |
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245 | |
121 | /**/ |
246 | /**/ |
122 | |
247 | |
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248 | /* |
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249 | * This is used to avoid floating point rounding problems. |
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250 | * It is added to ev_rt_now when scheduling periodics |
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251 | * to ensure progress, time-wise, even when rounding |
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252 | * errors are against us. |
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253 | * This value is good at least till the year 4000. |
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254 | * Better solutions welcome. |
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255 | */ |
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256 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
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257 | |
123 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
258 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
124 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
259 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
125 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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126 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
260 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
127 | |
261 | |
128 | #include "ev.h" |
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129 | |
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130 | #if __GNUC__ >= 3 |
262 | #if __GNUC__ >= 4 |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
132 | # define inline inline |
264 | # define noinline __attribute__ ((noinline)) |
133 | #else |
265 | #else |
134 | # define expect(expr,value) (expr) |
266 | # define expect(expr,value) (expr) |
135 | # define inline static |
267 | # define noinline |
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268 | # if __STDC_VERSION__ < 199901L |
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269 | # define inline |
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270 | # endif |
136 | #endif |
271 | #endif |
137 | |
272 | |
138 | #define expect_false(expr) expect ((expr) != 0, 0) |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
139 | #define expect_true(expr) expect ((expr) != 0, 1) |
274 | #define expect_true(expr) expect ((expr) != 0, 1) |
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275 | #define inline_size static inline |
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276 | |
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277 | #if EV_MINIMAL |
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278 | # define inline_speed static noinline |
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279 | #else |
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280 | # define inline_speed static inline |
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281 | #endif |
140 | |
282 | |
141 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
283 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
142 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
284 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
143 | |
285 | |
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286 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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287 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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288 | |
144 | typedef struct ev_watcher *W; |
289 | typedef ev_watcher *W; |
145 | typedef struct ev_watcher_list *WL; |
290 | typedef ev_watcher_list *WL; |
146 | typedef struct ev_watcher_time *WT; |
291 | typedef ev_watcher_time *WT; |
147 | |
292 | |
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293 | #if EV_USE_MONOTONIC |
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294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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295 | /* giving it a reasonably high chance of working on typical architetcures */ |
148 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
296 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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297 | #endif |
149 | |
298 | |
150 | #if WIN32 |
299 | #ifdef _WIN32 |
151 | /* note: the comment below could not be substantiated, but what would I care */ |
300 | # include "ev_win32.c" |
152 | /* MSDN says this is required to handle SIGFPE */ |
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153 | volatile double SIGFPE_REQ = 0.0f; |
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154 | #endif |
301 | #endif |
155 | |
302 | |
156 | /*****************************************************************************/ |
303 | /*****************************************************************************/ |
157 | |
304 | |
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305 | static void (*syserr_cb)(const char *msg); |
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306 | |
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307 | void |
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308 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
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309 | { |
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310 | syserr_cb = cb; |
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311 | } |
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312 | |
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313 | static void noinline |
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314 | syserr (const char *msg) |
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315 | { |
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316 | if (!msg) |
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317 | msg = "(libev) system error"; |
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318 | |
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319 | if (syserr_cb) |
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320 | syserr_cb (msg); |
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321 | else |
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322 | { |
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323 | perror (msg); |
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324 | abort (); |
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325 | } |
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326 | } |
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327 | |
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328 | static void *(*alloc)(void *ptr, long size); |
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329 | |
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330 | void |
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331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
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332 | { |
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333 | alloc = cb; |
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334 | } |
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335 | |
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336 | inline_speed void * |
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337 | ev_realloc (void *ptr, long size) |
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338 | { |
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339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
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340 | |
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341 | if (!ptr && size) |
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342 | { |
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343 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
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344 | abort (); |
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345 | } |
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346 | |
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347 | return ptr; |
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348 | } |
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349 | |
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350 | #define ev_malloc(size) ev_realloc (0, (size)) |
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351 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
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352 | |
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353 | /*****************************************************************************/ |
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354 | |
158 | typedef struct |
355 | typedef struct |
159 | { |
356 | { |
160 | struct ev_watcher_list *head; |
357 | WL head; |
161 | unsigned char events; |
358 | unsigned char events; |
162 | unsigned char reify; |
359 | unsigned char reify; |
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360 | #if EV_SELECT_IS_WINSOCKET |
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361 | SOCKET handle; |
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362 | #endif |
163 | } ANFD; |
363 | } ANFD; |
164 | |
364 | |
165 | typedef struct |
365 | typedef struct |
166 | { |
366 | { |
167 | W w; |
367 | W w; |
168 | int events; |
368 | int events; |
169 | } ANPENDING; |
369 | } ANPENDING; |
170 | |
370 | |
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371 | #if EV_USE_INOTIFY |
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372 | typedef struct |
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373 | { |
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374 | WL head; |
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375 | } ANFS; |
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376 | #endif |
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377 | |
171 | #if EV_MULTIPLICITY |
378 | #if EV_MULTIPLICITY |
172 | |
379 | |
173 | struct ev_loop |
380 | struct ev_loop |
174 | { |
381 | { |
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382 | ev_tstamp ev_rt_now; |
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383 | #define ev_rt_now ((loop)->ev_rt_now) |
175 | # define VAR(name,decl) decl; |
384 | #define VAR(name,decl) decl; |
176 | # include "ev_vars.h" |
385 | #include "ev_vars.h" |
177 | }; |
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178 | # undef VAR |
386 | #undef VAR |
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387 | }; |
179 | # include "ev_wrap.h" |
388 | #include "ev_wrap.h" |
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389 | |
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390 | static struct ev_loop default_loop_struct; |
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391 | struct ev_loop *ev_default_loop_ptr; |
180 | |
392 | |
181 | #else |
393 | #else |
182 | |
394 | |
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395 | ev_tstamp ev_rt_now; |
183 | # define VAR(name,decl) static decl; |
396 | #define VAR(name,decl) static decl; |
184 | # include "ev_vars.h" |
397 | #include "ev_vars.h" |
185 | # undef VAR |
398 | #undef VAR |
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399 | |
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400 | static int ev_default_loop_ptr; |
186 | |
401 | |
187 | #endif |
402 | #endif |
188 | |
403 | |
189 | /*****************************************************************************/ |
404 | /*****************************************************************************/ |
190 | |
405 | |
191 | inline ev_tstamp |
406 | ev_tstamp |
192 | ev_time (void) |
407 | ev_time (void) |
193 | { |
408 | { |
194 | #if EV_USE_REALTIME |
409 | #if EV_USE_REALTIME |
195 | struct timespec ts; |
410 | struct timespec ts; |
196 | clock_gettime (CLOCK_REALTIME, &ts); |
411 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
200 | gettimeofday (&tv, 0); |
415 | gettimeofday (&tv, 0); |
201 | return tv.tv_sec + tv.tv_usec * 1e-6; |
416 | return tv.tv_sec + tv.tv_usec * 1e-6; |
202 | #endif |
417 | #endif |
203 | } |
418 | } |
204 | |
419 | |
205 | inline ev_tstamp |
420 | ev_tstamp inline_size |
206 | get_clock (void) |
421 | get_clock (void) |
207 | { |
422 | { |
208 | #if EV_USE_MONOTONIC |
423 | #if EV_USE_MONOTONIC |
209 | if (expect_true (have_monotonic)) |
424 | if (expect_true (have_monotonic)) |
210 | { |
425 | { |
… | |
… | |
215 | #endif |
430 | #endif |
216 | |
431 | |
217 | return ev_time (); |
432 | return ev_time (); |
218 | } |
433 | } |
219 | |
434 | |
|
|
435 | #if EV_MULTIPLICITY |
220 | ev_tstamp |
436 | ev_tstamp |
221 | ev_now (EV_P) |
437 | ev_now (EV_P) |
222 | { |
438 | { |
223 | return rt_now; |
439 | return ev_rt_now; |
224 | } |
440 | } |
|
|
441 | #endif |
225 | |
442 | |
226 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
443 | void |
|
|
444 | ev_sleep (ev_tstamp delay) |
|
|
445 | { |
|
|
446 | if (delay > 0.) |
|
|
447 | { |
|
|
448 | #if EV_USE_NANOSLEEP |
|
|
449 | struct timespec ts; |
227 | |
450 | |
|
|
451 | ts.tv_sec = (time_t)delay; |
|
|
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
453 | |
|
|
454 | nanosleep (&ts, 0); |
|
|
455 | #elif defined(_WIN32) |
|
|
456 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
457 | #else |
|
|
458 | struct timeval tv; |
|
|
459 | |
|
|
460 | tv.tv_sec = (time_t)delay; |
|
|
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
462 | |
|
|
463 | select (0, 0, 0, 0, &tv); |
|
|
464 | #endif |
|
|
465 | } |
|
|
466 | } |
|
|
467 | |
|
|
468 | /*****************************************************************************/ |
|
|
469 | |
|
|
470 | int inline_size |
|
|
471 | array_nextsize (int elem, int cur, int cnt) |
|
|
472 | { |
|
|
473 | int ncur = cur + 1; |
|
|
474 | |
|
|
475 | do |
|
|
476 | ncur <<= 1; |
|
|
477 | while (cnt > ncur); |
|
|
478 | |
|
|
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
480 | if (elem * ncur > 4096) |
|
|
481 | { |
|
|
482 | ncur *= elem; |
|
|
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
484 | ncur = ncur - sizeof (void *) * 4; |
|
|
485 | ncur /= elem; |
|
|
486 | } |
|
|
487 | |
|
|
488 | return ncur; |
|
|
489 | } |
|
|
490 | |
|
|
491 | static noinline void * |
|
|
492 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
493 | { |
|
|
494 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
495 | return ev_realloc (base, elem * *cur); |
|
|
496 | } |
|
|
497 | |
228 | #define array_needsize(base,cur,cnt,init) \ |
498 | #define array_needsize(type,base,cur,cnt,init) \ |
229 | if (expect_false ((cnt) > cur)) \ |
499 | if (expect_false ((cnt) > (cur))) \ |
230 | { \ |
500 | { \ |
231 | int newcnt = cur; \ |
501 | int ocur_ = (cur); \ |
232 | do \ |
502 | (base) = (type *)array_realloc \ |
233 | { \ |
503 | (sizeof (type), (base), &(cur), (cnt)); \ |
234 | newcnt = array_roundsize (base, newcnt << 1); \ |
504 | init ((base) + (ocur_), (cur) - ocur_); \ |
235 | } \ |
|
|
236 | while ((cnt) > newcnt); \ |
|
|
237 | \ |
|
|
238 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
|
|
239 | init (base + cur, newcnt - cur); \ |
|
|
240 | cur = newcnt; \ |
|
|
241 | } |
505 | } |
242 | |
506 | |
|
|
507 | #if 0 |
243 | #define array_slim(stem) \ |
508 | #define array_slim(type,stem) \ |
244 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
509 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
245 | { \ |
510 | { \ |
246 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
511 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
247 | base = realloc (base, sizeof (*base) * (stem ## max)); \ |
512 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
248 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
513 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
249 | } |
514 | } |
|
|
515 | #endif |
250 | |
516 | |
251 | #define array_free(stem, idx) \ |
517 | #define array_free(stem, idx) \ |
252 | free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
518 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
253 | |
519 | |
254 | /*****************************************************************************/ |
520 | /*****************************************************************************/ |
255 | |
521 | |
256 | static void |
522 | void noinline |
|
|
523 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
524 | { |
|
|
525 | W w_ = (W)w; |
|
|
526 | int pri = ABSPRI (w_); |
|
|
527 | |
|
|
528 | if (expect_false (w_->pending)) |
|
|
529 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
530 | else |
|
|
531 | { |
|
|
532 | w_->pending = ++pendingcnt [pri]; |
|
|
533 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
534 | pendings [pri][w_->pending - 1].w = w_; |
|
|
535 | pendings [pri][w_->pending - 1].events = revents; |
|
|
536 | } |
|
|
537 | } |
|
|
538 | |
|
|
539 | void inline_speed |
|
|
540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
541 | { |
|
|
542 | int i; |
|
|
543 | |
|
|
544 | for (i = 0; i < eventcnt; ++i) |
|
|
545 | ev_feed_event (EV_A_ events [i], type); |
|
|
546 | } |
|
|
547 | |
|
|
548 | /*****************************************************************************/ |
|
|
549 | |
|
|
550 | void inline_size |
257 | anfds_init (ANFD *base, int count) |
551 | anfds_init (ANFD *base, int count) |
258 | { |
552 | { |
259 | while (count--) |
553 | while (count--) |
260 | { |
554 | { |
261 | base->head = 0; |
555 | base->head = 0; |
… | |
… | |
264 | |
558 | |
265 | ++base; |
559 | ++base; |
266 | } |
560 | } |
267 | } |
561 | } |
268 | |
562 | |
269 | static void |
563 | void inline_speed |
270 | event (EV_P_ W w, int events) |
|
|
271 | { |
|
|
272 | if (w->pending) |
|
|
273 | { |
|
|
274 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
275 | return; |
|
|
276 | } |
|
|
277 | |
|
|
278 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
279 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
|
|
280 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
281 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
282 | } |
|
|
283 | |
|
|
284 | static void |
|
|
285 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
286 | { |
|
|
287 | int i; |
|
|
288 | |
|
|
289 | for (i = 0; i < eventcnt; ++i) |
|
|
290 | event (EV_A_ events [i], type); |
|
|
291 | } |
|
|
292 | |
|
|
293 | static void |
|
|
294 | fd_event (EV_P_ int fd, int events) |
564 | fd_event (EV_P_ int fd, int revents) |
295 | { |
565 | { |
296 | ANFD *anfd = anfds + fd; |
566 | ANFD *anfd = anfds + fd; |
297 | struct ev_io *w; |
567 | ev_io *w; |
298 | |
568 | |
299 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
569 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
300 | { |
570 | { |
301 | int ev = w->events & events; |
571 | int ev = w->events & revents; |
302 | |
572 | |
303 | if (ev) |
573 | if (ev) |
304 | event (EV_A_ (W)w, ev); |
574 | ev_feed_event (EV_A_ (W)w, ev); |
305 | } |
575 | } |
306 | } |
576 | } |
307 | |
577 | |
308 | /*****************************************************************************/ |
578 | void |
|
|
579 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
580 | { |
|
|
581 | if (fd >= 0 && fd < anfdmax) |
|
|
582 | fd_event (EV_A_ fd, revents); |
|
|
583 | } |
309 | |
584 | |
310 | static void |
585 | void inline_size |
311 | fd_reify (EV_P) |
586 | fd_reify (EV_P) |
312 | { |
587 | { |
313 | int i; |
588 | int i; |
314 | |
589 | |
315 | for (i = 0; i < fdchangecnt; ++i) |
590 | for (i = 0; i < fdchangecnt; ++i) |
316 | { |
591 | { |
317 | int fd = fdchanges [i]; |
592 | int fd = fdchanges [i]; |
318 | ANFD *anfd = anfds + fd; |
593 | ANFD *anfd = anfds + fd; |
319 | struct ev_io *w; |
594 | ev_io *w; |
320 | |
595 | |
321 | int events = 0; |
596 | unsigned char events = 0; |
322 | |
597 | |
323 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
598 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
324 | events |= w->events; |
599 | events |= (unsigned char)w->events; |
325 | |
600 | |
|
|
601 | #if EV_SELECT_IS_WINSOCKET |
|
|
602 | if (events) |
|
|
603 | { |
|
|
604 | unsigned long argp; |
|
|
605 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
607 | #else |
|
|
608 | anfd->handle = _get_osfhandle (fd); |
|
|
609 | #endif |
|
|
610 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
611 | } |
|
|
612 | #endif |
|
|
613 | |
|
|
614 | { |
|
|
615 | unsigned char o_events = anfd->events; |
|
|
616 | unsigned char o_reify = anfd->reify; |
|
|
617 | |
326 | anfd->reify = 0; |
618 | anfd->reify = 0; |
327 | |
|
|
328 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
329 | anfd->events = events; |
619 | anfd->events = events; |
|
|
620 | |
|
|
621 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
622 | backend_modify (EV_A_ fd, o_events, events); |
|
|
623 | } |
330 | } |
624 | } |
331 | |
625 | |
332 | fdchangecnt = 0; |
626 | fdchangecnt = 0; |
333 | } |
627 | } |
334 | |
628 | |
335 | static void |
629 | void inline_size |
336 | fd_change (EV_P_ int fd) |
630 | fd_change (EV_P_ int fd, int flags) |
337 | { |
631 | { |
338 | if (anfds [fd].reify || fdchangecnt < 0) |
632 | unsigned char reify = anfds [fd].reify; |
339 | return; |
|
|
340 | |
|
|
341 | anfds [fd].reify = 1; |
633 | anfds [fd].reify |= flags; |
342 | |
634 | |
|
|
635 | if (expect_true (!reify)) |
|
|
636 | { |
343 | ++fdchangecnt; |
637 | ++fdchangecnt; |
344 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
638 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
345 | fdchanges [fdchangecnt - 1] = fd; |
639 | fdchanges [fdchangecnt - 1] = fd; |
|
|
640 | } |
346 | } |
641 | } |
347 | |
642 | |
348 | static void |
643 | void inline_speed |
349 | fd_kill (EV_P_ int fd) |
644 | fd_kill (EV_P_ int fd) |
350 | { |
645 | { |
351 | struct ev_io *w; |
646 | ev_io *w; |
352 | |
647 | |
353 | while ((w = (struct ev_io *)anfds [fd].head)) |
648 | while ((w = (ev_io *)anfds [fd].head)) |
354 | { |
649 | { |
355 | ev_io_stop (EV_A_ w); |
650 | ev_io_stop (EV_A_ w); |
356 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
651 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
357 | } |
652 | } |
|
|
653 | } |
|
|
654 | |
|
|
655 | int inline_size |
|
|
656 | fd_valid (int fd) |
|
|
657 | { |
|
|
658 | #ifdef _WIN32 |
|
|
659 | return _get_osfhandle (fd) != -1; |
|
|
660 | #else |
|
|
661 | return fcntl (fd, F_GETFD) != -1; |
|
|
662 | #endif |
358 | } |
663 | } |
359 | |
664 | |
360 | /* called on EBADF to verify fds */ |
665 | /* called on EBADF to verify fds */ |
361 | static void |
666 | static void noinline |
362 | fd_ebadf (EV_P) |
667 | fd_ebadf (EV_P) |
363 | { |
668 | { |
364 | int fd; |
669 | int fd; |
365 | |
670 | |
366 | for (fd = 0; fd < anfdmax; ++fd) |
671 | for (fd = 0; fd < anfdmax; ++fd) |
367 | if (anfds [fd].events) |
672 | if (anfds [fd].events) |
368 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
673 | if (!fd_valid (fd) == -1 && errno == EBADF) |
369 | fd_kill (EV_A_ fd); |
674 | fd_kill (EV_A_ fd); |
370 | } |
675 | } |
371 | |
676 | |
372 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
677 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
373 | static void |
678 | static void noinline |
374 | fd_enomem (EV_P) |
679 | fd_enomem (EV_P) |
375 | { |
680 | { |
376 | int fd; |
681 | int fd; |
377 | |
682 | |
378 | for (fd = anfdmax; fd--; ) |
683 | for (fd = anfdmax; fd--; ) |
379 | if (anfds [fd].events) |
684 | if (anfds [fd].events) |
380 | { |
685 | { |
381 | close (fd); |
|
|
382 | fd_kill (EV_A_ fd); |
686 | fd_kill (EV_A_ fd); |
383 | return; |
687 | return; |
384 | } |
688 | } |
385 | } |
689 | } |
386 | |
690 | |
387 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
691 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
388 | static void |
692 | static void noinline |
389 | fd_rearm_all (EV_P) |
693 | fd_rearm_all (EV_P) |
390 | { |
694 | { |
391 | int fd; |
695 | int fd; |
392 | |
696 | |
393 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
394 | for (fd = 0; fd < anfdmax; ++fd) |
697 | for (fd = 0; fd < anfdmax; ++fd) |
395 | if (anfds [fd].events) |
698 | if (anfds [fd].events) |
396 | { |
699 | { |
397 | anfds [fd].events = 0; |
700 | anfds [fd].events = 0; |
398 | fd_change (EV_A_ fd); |
701 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
399 | } |
702 | } |
400 | } |
703 | } |
401 | |
704 | |
402 | /*****************************************************************************/ |
705 | /*****************************************************************************/ |
403 | |
706 | |
404 | static void |
707 | void inline_speed |
405 | upheap (WT *heap, int k) |
708 | upheap (WT *heap, int k) |
406 | { |
709 | { |
407 | WT w = heap [k]; |
710 | WT w = heap [k]; |
408 | |
711 | |
409 | while (k && heap [k >> 1]->at > w->at) |
712 | while (k) |
410 | { |
713 | { |
|
|
714 | int p = (k - 1) >> 1; |
|
|
715 | |
|
|
716 | if (heap [p]->at <= w->at) |
|
|
717 | break; |
|
|
718 | |
411 | heap [k] = heap [k >> 1]; |
719 | heap [k] = heap [p]; |
412 | ((W)heap [k])->active = k + 1; |
720 | ((W)heap [k])->active = k + 1; |
413 | k >>= 1; |
721 | k = p; |
414 | } |
722 | } |
415 | |
723 | |
416 | heap [k] = w; |
724 | heap [k] = w; |
417 | ((W)heap [k])->active = k + 1; |
725 | ((W)heap [k])->active = k + 1; |
418 | |
|
|
419 | } |
726 | } |
420 | |
727 | |
421 | static void |
728 | void inline_speed |
422 | downheap (WT *heap, int N, int k) |
729 | downheap (WT *heap, int N, int k) |
423 | { |
730 | { |
424 | WT w = heap [k]; |
731 | WT w = heap [k]; |
425 | |
732 | |
426 | while (k < (N >> 1)) |
733 | for (;;) |
427 | { |
734 | { |
428 | int j = k << 1; |
735 | int c = (k << 1) + 1; |
429 | |
736 | |
430 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
737 | if (c >= N) |
431 | ++j; |
|
|
432 | |
|
|
433 | if (w->at <= heap [j]->at) |
|
|
434 | break; |
738 | break; |
435 | |
739 | |
|
|
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
741 | ? 1 : 0; |
|
|
742 | |
|
|
743 | if (w->at <= heap [c]->at) |
|
|
744 | break; |
|
|
745 | |
436 | heap [k] = heap [j]; |
746 | heap [k] = heap [c]; |
437 | ((W)heap [k])->active = k + 1; |
747 | ((W)heap [k])->active = k + 1; |
|
|
748 | |
438 | k = j; |
749 | k = c; |
439 | } |
750 | } |
440 | |
751 | |
441 | heap [k] = w; |
752 | heap [k] = w; |
442 | ((W)heap [k])->active = k + 1; |
753 | ((W)heap [k])->active = k + 1; |
443 | } |
754 | } |
444 | |
755 | |
|
|
756 | void inline_size |
|
|
757 | adjustheap (WT *heap, int N, int k) |
|
|
758 | { |
|
|
759 | upheap (heap, k); |
|
|
760 | downheap (heap, N, k); |
|
|
761 | } |
|
|
762 | |
445 | /*****************************************************************************/ |
763 | /*****************************************************************************/ |
446 | |
764 | |
447 | typedef struct |
765 | typedef struct |
448 | { |
766 | { |
449 | struct ev_watcher_list *head; |
767 | WL head; |
450 | sig_atomic_t volatile gotsig; |
768 | EV_ATOMIC_T gotsig; |
451 | } ANSIG; |
769 | } ANSIG; |
452 | |
770 | |
453 | static ANSIG *signals; |
771 | static ANSIG *signals; |
454 | static int signalmax; |
772 | static int signalmax; |
455 | |
773 | |
456 | static int sigpipe [2]; |
774 | static EV_ATOMIC_T gotsig; |
457 | static sig_atomic_t volatile gotsig; |
|
|
458 | static struct ev_io sigev; |
|
|
459 | |
775 | |
460 | static void |
776 | void inline_size |
461 | signals_init (ANSIG *base, int count) |
777 | signals_init (ANSIG *base, int count) |
462 | { |
778 | { |
463 | while (count--) |
779 | while (count--) |
464 | { |
780 | { |
465 | base->head = 0; |
781 | base->head = 0; |
… | |
… | |
467 | |
783 | |
468 | ++base; |
784 | ++base; |
469 | } |
785 | } |
470 | } |
786 | } |
471 | |
787 | |
|
|
788 | /*****************************************************************************/ |
|
|
789 | |
|
|
790 | void inline_speed |
|
|
791 | fd_intern (int fd) |
|
|
792 | { |
|
|
793 | #ifdef _WIN32 |
|
|
794 | int arg = 1; |
|
|
795 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
796 | #else |
|
|
797 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
798 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
799 | #endif |
|
|
800 | } |
|
|
801 | |
|
|
802 | static void noinline |
|
|
803 | evpipe_init (EV_P) |
|
|
804 | { |
|
|
805 | if (!ev_is_active (&pipeev)) |
|
|
806 | { |
|
|
807 | while (pipe (evpipe)) |
|
|
808 | syserr ("(libev) error creating signal/async pipe"); |
|
|
809 | |
|
|
810 | fd_intern (evpipe [0]); |
|
|
811 | fd_intern (evpipe [1]); |
|
|
812 | |
|
|
813 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
814 | ev_io_start (EV_A_ &pipeev); |
|
|
815 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
816 | } |
|
|
817 | } |
|
|
818 | |
|
|
819 | void inline_size |
|
|
820 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
821 | { |
|
|
822 | if (!*flag) |
|
|
823 | { |
|
|
824 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
825 | |
|
|
826 | *flag = 1; |
|
|
827 | write (evpipe [1], &old_errno, 1); |
|
|
828 | |
|
|
829 | errno = old_errno; |
|
|
830 | } |
|
|
831 | } |
|
|
832 | |
472 | static void |
833 | static void |
|
|
834 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
835 | { |
|
|
836 | { |
|
|
837 | int dummy; |
|
|
838 | read (evpipe [0], &dummy, 1); |
|
|
839 | } |
|
|
840 | |
|
|
841 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
842 | { |
|
|
843 | int signum; |
|
|
844 | gotsig = 0; |
|
|
845 | |
|
|
846 | for (signum = signalmax; signum--; ) |
|
|
847 | if (signals [signum].gotsig) |
|
|
848 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
849 | } |
|
|
850 | |
|
|
851 | #if EV_ASYNC_ENABLE |
|
|
852 | if (gotasync) |
|
|
853 | { |
|
|
854 | int i; |
|
|
855 | gotasync = 0; |
|
|
856 | |
|
|
857 | for (i = asynccnt; i--; ) |
|
|
858 | if (asyncs [i]->sent) |
|
|
859 | { |
|
|
860 | asyncs [i]->sent = 0; |
|
|
861 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
862 | } |
|
|
863 | } |
|
|
864 | #endif |
|
|
865 | } |
|
|
866 | |
|
|
867 | /*****************************************************************************/ |
|
|
868 | |
|
|
869 | static void |
473 | sighandler (int signum) |
870 | ev_sighandler (int signum) |
474 | { |
871 | { |
|
|
872 | #if EV_MULTIPLICITY |
|
|
873 | struct ev_loop *loop = &default_loop_struct; |
|
|
874 | #endif |
|
|
875 | |
475 | #if WIN32 |
876 | #if _WIN32 |
476 | signal (signum, sighandler); |
877 | signal (signum, ev_sighandler); |
477 | #endif |
878 | #endif |
478 | |
879 | |
479 | signals [signum - 1].gotsig = 1; |
880 | signals [signum - 1].gotsig = 1; |
480 | |
881 | evpipe_write (EV_A_ &gotsig); |
481 | if (!gotsig) |
|
|
482 | { |
|
|
483 | int old_errno = errno; |
|
|
484 | gotsig = 1; |
|
|
485 | write (sigpipe [1], &signum, 1); |
|
|
486 | errno = old_errno; |
|
|
487 | } |
|
|
488 | } |
882 | } |
489 | |
883 | |
490 | static void |
884 | void noinline |
491 | sigcb (EV_P_ struct ev_io *iow, int revents) |
885 | ev_feed_signal_event (EV_P_ int signum) |
492 | { |
886 | { |
493 | struct ev_watcher_list *w; |
887 | WL w; |
|
|
888 | |
|
|
889 | #if EV_MULTIPLICITY |
|
|
890 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
891 | #endif |
|
|
892 | |
494 | int signum; |
893 | --signum; |
495 | |
894 | |
496 | read (sigpipe [0], &revents, 1); |
895 | if (signum < 0 || signum >= signalmax) |
497 | gotsig = 0; |
896 | return; |
498 | |
897 | |
499 | for (signum = signalmax; signum--; ) |
|
|
500 | if (signals [signum].gotsig) |
|
|
501 | { |
|
|
502 | signals [signum].gotsig = 0; |
898 | signals [signum].gotsig = 0; |
503 | |
899 | |
504 | for (w = signals [signum].head; w; w = w->next) |
900 | for (w = signals [signum].head; w; w = w->next) |
505 | event (EV_A_ (W)w, EV_SIGNAL); |
901 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
506 | } |
|
|
507 | } |
|
|
508 | |
|
|
509 | static void |
|
|
510 | siginit (EV_P) |
|
|
511 | { |
|
|
512 | #ifndef WIN32 |
|
|
513 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
514 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
515 | |
|
|
516 | /* rather than sort out wether we really need nb, set it */ |
|
|
517 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
518 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
519 | #endif |
|
|
520 | |
|
|
521 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
522 | ev_io_start (EV_A_ &sigev); |
|
|
523 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
524 | } |
902 | } |
525 | |
903 | |
526 | /*****************************************************************************/ |
904 | /*****************************************************************************/ |
527 | |
905 | |
|
|
906 | static WL childs [EV_PID_HASHSIZE]; |
|
|
907 | |
528 | #ifndef WIN32 |
908 | #ifndef _WIN32 |
529 | |
909 | |
530 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
531 | static struct ev_signal childev; |
910 | static ev_signal childev; |
|
|
911 | |
|
|
912 | #ifndef WIFCONTINUED |
|
|
913 | # define WIFCONTINUED(status) 0 |
|
|
914 | #endif |
|
|
915 | |
|
|
916 | void inline_speed |
|
|
917 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
918 | { |
|
|
919 | ev_child *w; |
|
|
920 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
921 | |
|
|
922 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
923 | { |
|
|
924 | if ((w->pid == pid || !w->pid) |
|
|
925 | && (!traced || (w->flags & 1))) |
|
|
926 | { |
|
|
927 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
928 | w->rpid = pid; |
|
|
929 | w->rstatus = status; |
|
|
930 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
931 | } |
|
|
932 | } |
|
|
933 | } |
532 | |
934 | |
533 | #ifndef WCONTINUED |
935 | #ifndef WCONTINUED |
534 | # define WCONTINUED 0 |
936 | # define WCONTINUED 0 |
535 | #endif |
937 | #endif |
536 | |
938 | |
537 | static void |
939 | static void |
538 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
539 | { |
|
|
540 | struct ev_child *w; |
|
|
541 | |
|
|
542 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
543 | if (w->pid == pid || !w->pid) |
|
|
544 | { |
|
|
545 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
546 | w->rpid = pid; |
|
|
547 | w->rstatus = status; |
|
|
548 | event (EV_A_ (W)w, EV_CHILD); |
|
|
549 | } |
|
|
550 | } |
|
|
551 | |
|
|
552 | static void |
|
|
553 | childcb (EV_P_ struct ev_signal *sw, int revents) |
940 | childcb (EV_P_ ev_signal *sw, int revents) |
554 | { |
941 | { |
555 | int pid, status; |
942 | int pid, status; |
556 | |
943 | |
|
|
944 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
557 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
945 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
558 | { |
946 | if (!WCONTINUED |
|
|
947 | || errno != EINVAL |
|
|
948 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
949 | return; |
|
|
950 | |
559 | /* make sure we are called again until all childs have been reaped */ |
951 | /* make sure we are called again until all children have been reaped */ |
|
|
952 | /* we need to do it this way so that the callback gets called before we continue */ |
560 | event (EV_A_ (W)sw, EV_SIGNAL); |
953 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
561 | |
954 | |
562 | child_reap (EV_A_ sw, pid, pid, status); |
955 | child_reap (EV_A_ pid, pid, status); |
|
|
956 | if (EV_PID_HASHSIZE > 1) |
563 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
957 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
564 | } |
|
|
565 | } |
958 | } |
566 | |
959 | |
567 | #endif |
960 | #endif |
568 | |
961 | |
569 | /*****************************************************************************/ |
962 | /*****************************************************************************/ |
570 | |
963 | |
|
|
964 | #if EV_USE_PORT |
|
|
965 | # include "ev_port.c" |
|
|
966 | #endif |
571 | #if EV_USE_KQUEUE |
967 | #if EV_USE_KQUEUE |
572 | # include "ev_kqueue.c" |
968 | # include "ev_kqueue.c" |
573 | #endif |
969 | #endif |
574 | #if EV_USE_EPOLL |
970 | #if EV_USE_EPOLL |
575 | # include "ev_epoll.c" |
971 | # include "ev_epoll.c" |
… | |
… | |
592 | { |
988 | { |
593 | return EV_VERSION_MINOR; |
989 | return EV_VERSION_MINOR; |
594 | } |
990 | } |
595 | |
991 | |
596 | /* return true if we are running with elevated privileges and should ignore env variables */ |
992 | /* return true if we are running with elevated privileges and should ignore env variables */ |
597 | static int |
993 | int inline_size |
598 | enable_secure (void) |
994 | enable_secure (void) |
599 | { |
995 | { |
600 | #ifdef WIN32 |
996 | #ifdef _WIN32 |
601 | return 0; |
997 | return 0; |
602 | #else |
998 | #else |
603 | return getuid () != geteuid () |
999 | return getuid () != geteuid () |
604 | || getgid () != getegid (); |
1000 | || getgid () != getegid (); |
605 | #endif |
1001 | #endif |
606 | } |
1002 | } |
607 | |
1003 | |
608 | int |
1004 | unsigned int |
609 | ev_method (EV_P) |
1005 | ev_supported_backends (void) |
610 | { |
1006 | { |
611 | return method; |
1007 | unsigned int flags = 0; |
612 | } |
|
|
613 | |
1008 | |
614 | static void |
1009 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
615 | loop_init (EV_P_ int methods) |
1010 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1011 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1012 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1013 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1014 | |
|
|
1015 | return flags; |
|
|
1016 | } |
|
|
1017 | |
|
|
1018 | unsigned int |
|
|
1019 | ev_recommended_backends (void) |
616 | { |
1020 | { |
617 | if (!method) |
1021 | unsigned int flags = ev_supported_backends (); |
|
|
1022 | |
|
|
1023 | #ifndef __NetBSD__ |
|
|
1024 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1025 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1026 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1027 | #endif |
|
|
1028 | #ifdef __APPLE__ |
|
|
1029 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1030 | flags &= ~EVBACKEND_POLL; |
|
|
1031 | #endif |
|
|
1032 | |
|
|
1033 | return flags; |
|
|
1034 | } |
|
|
1035 | |
|
|
1036 | unsigned int |
|
|
1037 | ev_embeddable_backends (void) |
|
|
1038 | { |
|
|
1039 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1040 | |
|
|
1041 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1042 | /* please fix it and tell me how to detect the fix */ |
|
|
1043 | flags &= ~EVBACKEND_EPOLL; |
|
|
1044 | |
|
|
1045 | return flags; |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | unsigned int |
|
|
1049 | ev_backend (EV_P) |
|
|
1050 | { |
|
|
1051 | return backend; |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | unsigned int |
|
|
1055 | ev_loop_count (EV_P) |
|
|
1056 | { |
|
|
1057 | return loop_count; |
|
|
1058 | } |
|
|
1059 | |
|
|
1060 | void |
|
|
1061 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1062 | { |
|
|
1063 | io_blocktime = interval; |
|
|
1064 | } |
|
|
1065 | |
|
|
1066 | void |
|
|
1067 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1068 | { |
|
|
1069 | timeout_blocktime = interval; |
|
|
1070 | } |
|
|
1071 | |
|
|
1072 | static void noinline |
|
|
1073 | loop_init (EV_P_ unsigned int flags) |
|
|
1074 | { |
|
|
1075 | if (!backend) |
618 | { |
1076 | { |
619 | #if EV_USE_MONOTONIC |
1077 | #if EV_USE_MONOTONIC |
620 | { |
1078 | { |
621 | struct timespec ts; |
1079 | struct timespec ts; |
622 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1080 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
623 | have_monotonic = 1; |
1081 | have_monotonic = 1; |
624 | } |
1082 | } |
625 | #endif |
1083 | #endif |
626 | |
1084 | |
627 | rt_now = ev_time (); |
1085 | ev_rt_now = ev_time (); |
628 | mn_now = get_clock (); |
1086 | mn_now = get_clock (); |
629 | now_floor = mn_now; |
1087 | now_floor = mn_now; |
630 | rtmn_diff = rt_now - mn_now; |
1088 | rtmn_diff = ev_rt_now - mn_now; |
631 | |
1089 | |
632 | if (methods == EVMETHOD_AUTO) |
1090 | io_blocktime = 0.; |
633 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1091 | timeout_blocktime = 0.; |
|
|
1092 | backend = 0; |
|
|
1093 | backend_fd = -1; |
|
|
1094 | gotasync = 0; |
|
|
1095 | #if EV_USE_INOTIFY |
|
|
1096 | fs_fd = -2; |
|
|
1097 | #endif |
|
|
1098 | |
|
|
1099 | /* pid check not overridable via env */ |
|
|
1100 | #ifndef _WIN32 |
|
|
1101 | if (flags & EVFLAG_FORKCHECK) |
|
|
1102 | curpid = getpid (); |
|
|
1103 | #endif |
|
|
1104 | |
|
|
1105 | if (!(flags & EVFLAG_NOENV) |
|
|
1106 | && !enable_secure () |
|
|
1107 | && getenv ("LIBEV_FLAGS")) |
634 | methods = atoi (getenv ("LIBEV_METHODS")); |
1108 | flags = atoi (getenv ("LIBEV_FLAGS")); |
635 | else |
|
|
636 | methods = EVMETHOD_ANY; |
|
|
637 | |
1109 | |
638 | method = 0; |
1110 | if (!(flags & 0x0000ffffUL)) |
639 | #if EV_USE_WIN32 |
1111 | flags |= ev_recommended_backends (); |
640 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
1112 | |
|
|
1113 | #if EV_USE_PORT |
|
|
1114 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
641 | #endif |
1115 | #endif |
642 | #if EV_USE_KQUEUE |
1116 | #if EV_USE_KQUEUE |
643 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
1117 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
644 | #endif |
1118 | #endif |
645 | #if EV_USE_EPOLL |
1119 | #if EV_USE_EPOLL |
646 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
1120 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
647 | #endif |
1121 | #endif |
648 | #if EV_USE_POLL |
1122 | #if EV_USE_POLL |
649 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
1123 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
650 | #endif |
1124 | #endif |
651 | #if EV_USE_SELECT |
1125 | #if EV_USE_SELECT |
652 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
1126 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
653 | #endif |
1127 | #endif |
654 | } |
|
|
655 | } |
|
|
656 | |
1128 | |
657 | void |
1129 | ev_init (&pipeev, pipecb); |
|
|
1130 | ev_set_priority (&pipeev, EV_MAXPRI); |
|
|
1131 | } |
|
|
1132 | } |
|
|
1133 | |
|
|
1134 | static void noinline |
658 | loop_destroy (EV_P) |
1135 | loop_destroy (EV_P) |
659 | { |
1136 | { |
660 | int i; |
1137 | int i; |
661 | |
1138 | |
|
|
1139 | if (ev_is_active (&pipeev)) |
|
|
1140 | { |
|
|
1141 | ev_ref (EV_A); /* signal watcher */ |
|
|
1142 | ev_io_stop (EV_A_ &pipeev); |
|
|
1143 | |
|
|
1144 | close (evpipe [0]); evpipe [0] = 0; |
|
|
1145 | close (evpipe [1]); evpipe [1] = 0; |
|
|
1146 | } |
|
|
1147 | |
662 | #if EV_USE_WIN32 |
1148 | #if EV_USE_INOTIFY |
663 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
1149 | if (fs_fd >= 0) |
|
|
1150 | close (fs_fd); |
|
|
1151 | #endif |
|
|
1152 | |
|
|
1153 | if (backend_fd >= 0) |
|
|
1154 | close (backend_fd); |
|
|
1155 | |
|
|
1156 | #if EV_USE_PORT |
|
|
1157 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
664 | #endif |
1158 | #endif |
665 | #if EV_USE_KQUEUE |
1159 | #if EV_USE_KQUEUE |
666 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1160 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
667 | #endif |
1161 | #endif |
668 | #if EV_USE_EPOLL |
1162 | #if EV_USE_EPOLL |
669 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1163 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
670 | #endif |
1164 | #endif |
671 | #if EV_USE_POLL |
1165 | #if EV_USE_POLL |
672 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1166 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
673 | #endif |
1167 | #endif |
674 | #if EV_USE_SELECT |
1168 | #if EV_USE_SELECT |
675 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1169 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
676 | #endif |
1170 | #endif |
677 | |
1171 | |
678 | for (i = NUMPRI; i--; ) |
1172 | for (i = NUMPRI; i--; ) |
|
|
1173 | { |
679 | array_free (pending, [i]); |
1174 | array_free (pending, [i]); |
|
|
1175 | #if EV_IDLE_ENABLE |
|
|
1176 | array_free (idle, [i]); |
|
|
1177 | #endif |
|
|
1178 | } |
680 | |
1179 | |
|
|
1180 | ev_free (anfds); anfdmax = 0; |
|
|
1181 | |
|
|
1182 | /* have to use the microsoft-never-gets-it-right macro */ |
681 | array_free (fdchange, ); |
1183 | array_free (fdchange, EMPTY); |
682 | array_free (timer, ); |
1184 | array_free (timer, EMPTY); |
|
|
1185 | #if EV_PERIODIC_ENABLE |
683 | array_free (periodic, ); |
1186 | array_free (periodic, EMPTY); |
684 | array_free (idle, ); |
1187 | #endif |
|
|
1188 | #if EV_FORK_ENABLE |
|
|
1189 | array_free (fork, EMPTY); |
|
|
1190 | #endif |
685 | array_free (prepare, ); |
1191 | array_free (prepare, EMPTY); |
686 | array_free (check, ); |
1192 | array_free (check, EMPTY); |
|
|
1193 | #if EV_ASYNC_ENABLE |
|
|
1194 | array_free (async, EMPTY); |
|
|
1195 | #endif |
687 | |
1196 | |
688 | method = 0; |
1197 | backend = 0; |
689 | /*TODO*/ |
|
|
690 | } |
1198 | } |
691 | |
1199 | |
692 | void |
1200 | void inline_size infy_fork (EV_P); |
|
|
1201 | |
|
|
1202 | void inline_size |
693 | loop_fork (EV_P) |
1203 | loop_fork (EV_P) |
694 | { |
1204 | { |
695 | /*TODO*/ |
1205 | #if EV_USE_PORT |
|
|
1206 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1207 | #endif |
|
|
1208 | #if EV_USE_KQUEUE |
|
|
1209 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1210 | #endif |
696 | #if EV_USE_EPOLL |
1211 | #if EV_USE_EPOLL |
697 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1212 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
698 | #endif |
1213 | #endif |
699 | #if EV_USE_KQUEUE |
1214 | #if EV_USE_INOTIFY |
700 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1215 | infy_fork (EV_A); |
701 | #endif |
1216 | #endif |
|
|
1217 | |
|
|
1218 | if (ev_is_active (&pipeev)) |
|
|
1219 | { |
|
|
1220 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1221 | /* while we modify the fd vars */ |
|
|
1222 | gotsig = 1; |
|
|
1223 | #if EV_ASYNC_ENABLE |
|
|
1224 | gotasync = 1; |
|
|
1225 | #endif |
|
|
1226 | |
|
|
1227 | ev_ref (EV_A); |
|
|
1228 | ev_io_stop (EV_A_ &pipeev); |
|
|
1229 | close (evpipe [0]); |
|
|
1230 | close (evpipe [1]); |
|
|
1231 | |
|
|
1232 | evpipe_init (EV_A); |
|
|
1233 | /* now iterate over everything, in case we missed something */ |
|
|
1234 | pipecb (EV_A_ &pipeev, EV_READ); |
|
|
1235 | } |
|
|
1236 | |
|
|
1237 | postfork = 0; |
702 | } |
1238 | } |
703 | |
1239 | |
704 | #if EV_MULTIPLICITY |
1240 | #if EV_MULTIPLICITY |
705 | struct ev_loop * |
1241 | struct ev_loop * |
706 | ev_loop_new (int methods) |
1242 | ev_loop_new (unsigned int flags) |
707 | { |
1243 | { |
708 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
1244 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
709 | |
1245 | |
|
|
1246 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1247 | |
710 | loop_init (EV_A_ methods); |
1248 | loop_init (EV_A_ flags); |
711 | |
1249 | |
712 | if (ev_method (EV_A)) |
1250 | if (ev_backend (EV_A)) |
713 | return loop; |
1251 | return loop; |
714 | |
1252 | |
715 | return 0; |
1253 | return 0; |
716 | } |
1254 | } |
717 | |
1255 | |
718 | void |
1256 | void |
719 | ev_loop_destroy (EV_P) |
1257 | ev_loop_destroy (EV_P) |
720 | { |
1258 | { |
721 | loop_destroy (EV_A); |
1259 | loop_destroy (EV_A); |
722 | free (loop); |
1260 | ev_free (loop); |
723 | } |
1261 | } |
724 | |
1262 | |
725 | void |
1263 | void |
726 | ev_loop_fork (EV_P) |
1264 | ev_loop_fork (EV_P) |
727 | { |
1265 | { |
728 | loop_fork (EV_A); |
1266 | postfork = 1; /* must be in line with ev_default_fork */ |
729 | } |
1267 | } |
730 | |
1268 | |
731 | #endif |
1269 | #endif |
732 | |
1270 | |
733 | #if EV_MULTIPLICITY |
1271 | #if EV_MULTIPLICITY |
734 | struct ev_loop default_loop_struct; |
|
|
735 | static struct ev_loop *default_loop; |
|
|
736 | |
|
|
737 | struct ev_loop * |
1272 | struct ev_loop * |
|
|
1273 | ev_default_loop_init (unsigned int flags) |
738 | #else |
1274 | #else |
739 | static int default_loop; |
|
|
740 | |
|
|
741 | int |
1275 | int |
|
|
1276 | ev_default_loop (unsigned int flags) |
742 | #endif |
1277 | #endif |
743 | ev_default_loop (int methods) |
|
|
744 | { |
1278 | { |
745 | if (sigpipe [0] == sigpipe [1]) |
|
|
746 | if (pipe (sigpipe)) |
|
|
747 | return 0; |
|
|
748 | |
|
|
749 | if (!default_loop) |
1279 | if (!ev_default_loop_ptr) |
750 | { |
1280 | { |
751 | #if EV_MULTIPLICITY |
1281 | #if EV_MULTIPLICITY |
752 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1282 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
753 | #else |
1283 | #else |
754 | default_loop = 1; |
1284 | ev_default_loop_ptr = 1; |
755 | #endif |
1285 | #endif |
756 | |
1286 | |
757 | loop_init (EV_A_ methods); |
1287 | loop_init (EV_A_ flags); |
758 | |
1288 | |
759 | if (ev_method (EV_A)) |
1289 | if (ev_backend (EV_A)) |
760 | { |
1290 | { |
761 | ev_watcher_init (&sigev, sigcb); |
|
|
762 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
763 | siginit (EV_A); |
|
|
764 | |
|
|
765 | #ifndef WIN32 |
1291 | #ifndef _WIN32 |
766 | ev_signal_init (&childev, childcb, SIGCHLD); |
1292 | ev_signal_init (&childev, childcb, SIGCHLD); |
767 | ev_set_priority (&childev, EV_MAXPRI); |
1293 | ev_set_priority (&childev, EV_MAXPRI); |
768 | ev_signal_start (EV_A_ &childev); |
1294 | ev_signal_start (EV_A_ &childev); |
769 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1295 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
770 | #endif |
1296 | #endif |
771 | } |
1297 | } |
772 | else |
1298 | else |
773 | default_loop = 0; |
1299 | ev_default_loop_ptr = 0; |
774 | } |
1300 | } |
775 | |
1301 | |
776 | return default_loop; |
1302 | return ev_default_loop_ptr; |
777 | } |
1303 | } |
778 | |
1304 | |
779 | void |
1305 | void |
780 | ev_default_destroy (void) |
1306 | ev_default_destroy (void) |
781 | { |
1307 | { |
782 | #if EV_MULTIPLICITY |
1308 | #if EV_MULTIPLICITY |
783 | struct ev_loop *loop = default_loop; |
1309 | struct ev_loop *loop = ev_default_loop_ptr; |
784 | #endif |
1310 | #endif |
785 | |
1311 | |
|
|
1312 | #ifndef _WIN32 |
786 | ev_ref (EV_A); /* child watcher */ |
1313 | ev_ref (EV_A); /* child watcher */ |
787 | ev_signal_stop (EV_A_ &childev); |
1314 | ev_signal_stop (EV_A_ &childev); |
788 | |
1315 | #endif |
789 | ev_ref (EV_A); /* signal watcher */ |
|
|
790 | ev_io_stop (EV_A_ &sigev); |
|
|
791 | |
|
|
792 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
793 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
794 | |
1316 | |
795 | loop_destroy (EV_A); |
1317 | loop_destroy (EV_A); |
796 | } |
1318 | } |
797 | |
1319 | |
798 | void |
1320 | void |
799 | ev_default_fork (void) |
1321 | ev_default_fork (void) |
800 | { |
1322 | { |
801 | #if EV_MULTIPLICITY |
1323 | #if EV_MULTIPLICITY |
802 | struct ev_loop *loop = default_loop; |
1324 | struct ev_loop *loop = ev_default_loop_ptr; |
803 | #endif |
1325 | #endif |
804 | |
1326 | |
805 | loop_fork (EV_A); |
1327 | if (backend) |
806 | |
1328 | postfork = 1; /* must be in line with ev_loop_fork */ |
807 | ev_io_stop (EV_A_ &sigev); |
|
|
808 | close (sigpipe [0]); |
|
|
809 | close (sigpipe [1]); |
|
|
810 | pipe (sigpipe); |
|
|
811 | |
|
|
812 | ev_ref (EV_A); /* signal watcher */ |
|
|
813 | siginit (EV_A); |
|
|
814 | } |
1329 | } |
815 | |
1330 | |
816 | /*****************************************************************************/ |
1331 | /*****************************************************************************/ |
817 | |
1332 | |
818 | static void |
1333 | void |
|
|
1334 | ev_invoke (EV_P_ void *w, int revents) |
|
|
1335 | { |
|
|
1336 | EV_CB_INVOKE ((W)w, revents); |
|
|
1337 | } |
|
|
1338 | |
|
|
1339 | void inline_speed |
819 | call_pending (EV_P) |
1340 | call_pending (EV_P) |
820 | { |
1341 | { |
821 | int pri; |
1342 | int pri; |
822 | |
1343 | |
823 | for (pri = NUMPRI; pri--; ) |
1344 | for (pri = NUMPRI; pri--; ) |
824 | while (pendingcnt [pri]) |
1345 | while (pendingcnt [pri]) |
825 | { |
1346 | { |
826 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1347 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
827 | |
1348 | |
828 | if (p->w) |
1349 | if (expect_true (p->w)) |
829 | { |
1350 | { |
|
|
1351 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1352 | |
830 | p->w->pending = 0; |
1353 | p->w->pending = 0; |
831 | p->w->cb (EV_A_ p->w, p->events); |
1354 | EV_CB_INVOKE (p->w, p->events); |
832 | } |
1355 | } |
833 | } |
1356 | } |
834 | } |
1357 | } |
835 | |
1358 | |
836 | static void |
1359 | void inline_size |
837 | timers_reify (EV_P) |
1360 | timers_reify (EV_P) |
838 | { |
1361 | { |
839 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1362 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
840 | { |
1363 | { |
841 | struct ev_timer *w = timers [0]; |
1364 | ev_timer *w = (ev_timer *)timers [0]; |
842 | |
1365 | |
843 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1366 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
844 | |
1367 | |
845 | /* first reschedule or stop timer */ |
1368 | /* first reschedule or stop timer */ |
846 | if (w->repeat) |
1369 | if (w->repeat) |
847 | { |
1370 | { |
848 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1371 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1372 | |
849 | ((WT)w)->at = mn_now + w->repeat; |
1373 | ((WT)w)->at += w->repeat; |
|
|
1374 | if (((WT)w)->at < mn_now) |
|
|
1375 | ((WT)w)->at = mn_now; |
|
|
1376 | |
850 | downheap ((WT *)timers, timercnt, 0); |
1377 | downheap (timers, timercnt, 0); |
851 | } |
1378 | } |
852 | else |
1379 | else |
853 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1380 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
854 | |
1381 | |
855 | event (EV_A_ (W)w, EV_TIMEOUT); |
1382 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
856 | } |
1383 | } |
857 | } |
1384 | } |
858 | |
1385 | |
859 | static void |
1386 | #if EV_PERIODIC_ENABLE |
|
|
1387 | void inline_size |
860 | periodics_reify (EV_P) |
1388 | periodics_reify (EV_P) |
861 | { |
1389 | { |
862 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1390 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
863 | { |
1391 | { |
864 | struct ev_periodic *w = periodics [0]; |
1392 | ev_periodic *w = (ev_periodic *)periodics [0]; |
865 | |
1393 | |
866 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1394 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
867 | |
1395 | |
868 | /* first reschedule or stop timer */ |
1396 | /* first reschedule or stop timer */ |
869 | if (w->interval) |
1397 | if (w->reschedule_cb) |
870 | { |
1398 | { |
|
|
1399 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1400 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1401 | downheap (periodics, periodiccnt, 0); |
|
|
1402 | } |
|
|
1403 | else if (w->interval) |
|
|
1404 | { |
871 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1405 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1406 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
872 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1407 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
873 | downheap ((WT *)periodics, periodiccnt, 0); |
1408 | downheap (periodics, periodiccnt, 0); |
874 | } |
1409 | } |
875 | else |
1410 | else |
876 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1411 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
877 | |
1412 | |
878 | event (EV_A_ (W)w, EV_PERIODIC); |
1413 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
879 | } |
1414 | } |
880 | } |
1415 | } |
881 | |
1416 | |
882 | static void |
1417 | static void noinline |
883 | periodics_reschedule (EV_P) |
1418 | periodics_reschedule (EV_P) |
884 | { |
1419 | { |
885 | int i; |
1420 | int i; |
886 | |
1421 | |
887 | /* adjust periodics after time jump */ |
1422 | /* adjust periodics after time jump */ |
888 | for (i = 0; i < periodiccnt; ++i) |
1423 | for (i = 0; i < periodiccnt; ++i) |
889 | { |
1424 | { |
890 | struct ev_periodic *w = periodics [i]; |
1425 | ev_periodic *w = (ev_periodic *)periodics [i]; |
891 | |
1426 | |
|
|
1427 | if (w->reschedule_cb) |
|
|
1428 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
892 | if (w->interval) |
1429 | else if (w->interval) |
|
|
1430 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1431 | } |
|
|
1432 | |
|
|
1433 | /* now rebuild the heap */ |
|
|
1434 | for (i = periodiccnt >> 1; i--; ) |
|
|
1435 | downheap (periodics, periodiccnt, i); |
|
|
1436 | } |
|
|
1437 | #endif |
|
|
1438 | |
|
|
1439 | #if EV_IDLE_ENABLE |
|
|
1440 | void inline_size |
|
|
1441 | idle_reify (EV_P) |
|
|
1442 | { |
|
|
1443 | if (expect_false (idleall)) |
|
|
1444 | { |
|
|
1445 | int pri; |
|
|
1446 | |
|
|
1447 | for (pri = NUMPRI; pri--; ) |
893 | { |
1448 | { |
894 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1449 | if (pendingcnt [pri]) |
|
|
1450 | break; |
895 | |
1451 | |
896 | if (fabs (diff) >= 1e-4) |
1452 | if (idlecnt [pri]) |
897 | { |
1453 | { |
898 | ev_periodic_stop (EV_A_ w); |
1454 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
899 | ev_periodic_start (EV_A_ w); |
1455 | break; |
900 | |
|
|
901 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
902 | } |
1456 | } |
903 | } |
1457 | } |
904 | } |
1458 | } |
905 | } |
1459 | } |
|
|
1460 | #endif |
906 | |
1461 | |
907 | inline int |
1462 | void inline_speed |
908 | time_update_monotonic (EV_P) |
1463 | time_update (EV_P_ ev_tstamp max_block) |
909 | { |
|
|
910 | mn_now = get_clock (); |
|
|
911 | |
|
|
912 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
913 | { |
|
|
914 | rt_now = rtmn_diff + mn_now; |
|
|
915 | return 0; |
|
|
916 | } |
|
|
917 | else |
|
|
918 | { |
|
|
919 | now_floor = mn_now; |
|
|
920 | rt_now = ev_time (); |
|
|
921 | return 1; |
|
|
922 | } |
|
|
923 | } |
|
|
924 | |
|
|
925 | static void |
|
|
926 | time_update (EV_P) |
|
|
927 | { |
1464 | { |
928 | int i; |
1465 | int i; |
929 | |
1466 | |
930 | #if EV_USE_MONOTONIC |
1467 | #if EV_USE_MONOTONIC |
931 | if (expect_true (have_monotonic)) |
1468 | if (expect_true (have_monotonic)) |
932 | { |
1469 | { |
933 | if (time_update_monotonic (EV_A)) |
1470 | ev_tstamp odiff = rtmn_diff; |
|
|
1471 | |
|
|
1472 | mn_now = get_clock (); |
|
|
1473 | |
|
|
1474 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1475 | /* interpolate in the meantime */ |
|
|
1476 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
934 | { |
1477 | { |
935 | ev_tstamp odiff = rtmn_diff; |
1478 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1479 | return; |
|
|
1480 | } |
936 | |
1481 | |
|
|
1482 | now_floor = mn_now; |
|
|
1483 | ev_rt_now = ev_time (); |
|
|
1484 | |
937 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1485 | /* loop a few times, before making important decisions. |
|
|
1486 | * on the choice of "4": one iteration isn't enough, |
|
|
1487 | * in case we get preempted during the calls to |
|
|
1488 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1489 | * to succeed in that case, though. and looping a few more times |
|
|
1490 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1491 | * in the unlikely event of having been preempted here. |
|
|
1492 | */ |
|
|
1493 | for (i = 4; --i; ) |
938 | { |
1494 | { |
939 | rtmn_diff = rt_now - mn_now; |
1495 | rtmn_diff = ev_rt_now - mn_now; |
940 | |
1496 | |
941 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1497 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
942 | return; /* all is well */ |
1498 | return; /* all is well */ |
943 | |
1499 | |
944 | rt_now = ev_time (); |
1500 | ev_rt_now = ev_time (); |
945 | mn_now = get_clock (); |
1501 | mn_now = get_clock (); |
946 | now_floor = mn_now; |
1502 | now_floor = mn_now; |
947 | } |
1503 | } |
948 | |
1504 | |
|
|
1505 | # if EV_PERIODIC_ENABLE |
|
|
1506 | periodics_reschedule (EV_A); |
|
|
1507 | # endif |
|
|
1508 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1509 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1510 | } |
|
|
1511 | else |
|
|
1512 | #endif |
|
|
1513 | { |
|
|
1514 | ev_rt_now = ev_time (); |
|
|
1515 | |
|
|
1516 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1517 | { |
|
|
1518 | #if EV_PERIODIC_ENABLE |
949 | periodics_reschedule (EV_A); |
1519 | periodics_reschedule (EV_A); |
950 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1520 | #endif |
951 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1521 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1522 | for (i = 0; i < timercnt; ++i) |
|
|
1523 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
952 | } |
1524 | } |
953 | } |
|
|
954 | else |
|
|
955 | #endif |
|
|
956 | { |
|
|
957 | rt_now = ev_time (); |
|
|
958 | |
1525 | |
959 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
960 | { |
|
|
961 | periodics_reschedule (EV_A); |
|
|
962 | |
|
|
963 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
964 | for (i = 0; i < timercnt; ++i) |
|
|
965 | ((WT)timers [i])->at += rt_now - mn_now; |
|
|
966 | } |
|
|
967 | |
|
|
968 | mn_now = rt_now; |
1526 | mn_now = ev_rt_now; |
969 | } |
1527 | } |
970 | } |
1528 | } |
971 | |
1529 | |
972 | void |
1530 | void |
973 | ev_ref (EV_P) |
1531 | ev_ref (EV_P) |
… | |
… | |
984 | static int loop_done; |
1542 | static int loop_done; |
985 | |
1543 | |
986 | void |
1544 | void |
987 | ev_loop (EV_P_ int flags) |
1545 | ev_loop (EV_P_ int flags) |
988 | { |
1546 | { |
989 | double block; |
1547 | loop_done = EVUNLOOP_CANCEL; |
990 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1548 | |
|
|
1549 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
991 | |
1550 | |
992 | do |
1551 | do |
993 | { |
1552 | { |
|
|
1553 | #ifndef _WIN32 |
|
|
1554 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1555 | if (expect_false (getpid () != curpid)) |
|
|
1556 | { |
|
|
1557 | curpid = getpid (); |
|
|
1558 | postfork = 1; |
|
|
1559 | } |
|
|
1560 | #endif |
|
|
1561 | |
|
|
1562 | #if EV_FORK_ENABLE |
|
|
1563 | /* we might have forked, so queue fork handlers */ |
|
|
1564 | if (expect_false (postfork)) |
|
|
1565 | if (forkcnt) |
|
|
1566 | { |
|
|
1567 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1568 | call_pending (EV_A); |
|
|
1569 | } |
|
|
1570 | #endif |
|
|
1571 | |
994 | /* queue check watchers (and execute them) */ |
1572 | /* queue prepare watchers (and execute them) */ |
995 | if (expect_false (preparecnt)) |
1573 | if (expect_false (preparecnt)) |
996 | { |
1574 | { |
997 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1575 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
998 | call_pending (EV_A); |
1576 | call_pending (EV_A); |
999 | } |
1577 | } |
1000 | |
1578 | |
|
|
1579 | if (expect_false (!activecnt)) |
|
|
1580 | break; |
|
|
1581 | |
|
|
1582 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1583 | if (expect_false (postfork)) |
|
|
1584 | loop_fork (EV_A); |
|
|
1585 | |
1001 | /* update fd-related kernel structures */ |
1586 | /* update fd-related kernel structures */ |
1002 | fd_reify (EV_A); |
1587 | fd_reify (EV_A); |
1003 | |
1588 | |
1004 | /* calculate blocking time */ |
1589 | /* calculate blocking time */ |
|
|
1590 | { |
|
|
1591 | ev_tstamp waittime = 0.; |
|
|
1592 | ev_tstamp sleeptime = 0.; |
1005 | |
1593 | |
1006 | /* we only need this for !monotonic clockor timers, but as we basically |
1594 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1007 | always have timers, we just calculate it always */ |
|
|
1008 | #if EV_USE_MONOTONIC |
|
|
1009 | if (expect_true (have_monotonic)) |
|
|
1010 | time_update_monotonic (EV_A); |
|
|
1011 | else |
|
|
1012 | #endif |
|
|
1013 | { |
1595 | { |
1014 | rt_now = ev_time (); |
1596 | /* update time to cancel out callback processing overhead */ |
1015 | mn_now = rt_now; |
1597 | time_update (EV_A_ 1e100); |
1016 | } |
|
|
1017 | |
1598 | |
1018 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1019 | block = 0.; |
|
|
1020 | else |
|
|
1021 | { |
|
|
1022 | block = MAX_BLOCKTIME; |
1599 | waittime = MAX_BLOCKTIME; |
1023 | |
1600 | |
1024 | if (timercnt) |
1601 | if (timercnt) |
1025 | { |
1602 | { |
1026 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1603 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1027 | if (block > to) block = to; |
1604 | if (waittime > to) waittime = to; |
1028 | } |
1605 | } |
1029 | |
1606 | |
|
|
1607 | #if EV_PERIODIC_ENABLE |
1030 | if (periodiccnt) |
1608 | if (periodiccnt) |
1031 | { |
1609 | { |
1032 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1610 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1033 | if (block > to) block = to; |
1611 | if (waittime > to) waittime = to; |
1034 | } |
1612 | } |
|
|
1613 | #endif |
1035 | |
1614 | |
1036 | if (block < 0.) block = 0.; |
1615 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1616 | waittime = timeout_blocktime; |
|
|
1617 | |
|
|
1618 | sleeptime = waittime - backend_fudge; |
|
|
1619 | |
|
|
1620 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1621 | sleeptime = io_blocktime; |
|
|
1622 | |
|
|
1623 | if (sleeptime) |
|
|
1624 | { |
|
|
1625 | ev_sleep (sleeptime); |
|
|
1626 | waittime -= sleeptime; |
|
|
1627 | } |
1037 | } |
1628 | } |
1038 | |
1629 | |
1039 | method_poll (EV_A_ block); |
1630 | ++loop_count; |
|
|
1631 | backend_poll (EV_A_ waittime); |
1040 | |
1632 | |
1041 | /* update rt_now, do magic */ |
1633 | /* update ev_rt_now, do magic */ |
1042 | time_update (EV_A); |
1634 | time_update (EV_A_ waittime + sleeptime); |
|
|
1635 | } |
1043 | |
1636 | |
1044 | /* queue pending timers and reschedule them */ |
1637 | /* queue pending timers and reschedule them */ |
1045 | timers_reify (EV_A); /* relative timers called last */ |
1638 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1639 | #if EV_PERIODIC_ENABLE |
1046 | periodics_reify (EV_A); /* absolute timers called first */ |
1640 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1641 | #endif |
1047 | |
1642 | |
|
|
1643 | #if EV_IDLE_ENABLE |
1048 | /* queue idle watchers unless io or timers are pending */ |
1644 | /* queue idle watchers unless other events are pending */ |
1049 | if (!pendingcnt) |
1645 | idle_reify (EV_A); |
1050 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1646 | #endif |
1051 | |
1647 | |
1052 | /* queue check watchers, to be executed first */ |
1648 | /* queue check watchers, to be executed first */ |
1053 | if (checkcnt) |
1649 | if (expect_false (checkcnt)) |
1054 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1650 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1055 | |
1651 | |
1056 | call_pending (EV_A); |
1652 | call_pending (EV_A); |
1057 | } |
1653 | } |
1058 | while (activecnt && !loop_done); |
1654 | while (expect_true ( |
|
|
1655 | activecnt |
|
|
1656 | && !loop_done |
|
|
1657 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1658 | )); |
1059 | |
1659 | |
1060 | if (loop_done != 2) |
1660 | if (loop_done == EVUNLOOP_ONE) |
1061 | loop_done = 0; |
1661 | loop_done = EVUNLOOP_CANCEL; |
1062 | } |
1662 | } |
1063 | |
1663 | |
1064 | void |
1664 | void |
1065 | ev_unloop (EV_P_ int how) |
1665 | ev_unloop (EV_P_ int how) |
1066 | { |
1666 | { |
1067 | loop_done = how; |
1667 | loop_done = how; |
1068 | } |
1668 | } |
1069 | |
1669 | |
1070 | /*****************************************************************************/ |
1670 | /*****************************************************************************/ |
1071 | |
1671 | |
1072 | inline void |
1672 | void inline_size |
1073 | wlist_add (WL *head, WL elem) |
1673 | wlist_add (WL *head, WL elem) |
1074 | { |
1674 | { |
1075 | elem->next = *head; |
1675 | elem->next = *head; |
1076 | *head = elem; |
1676 | *head = elem; |
1077 | } |
1677 | } |
1078 | |
1678 | |
1079 | inline void |
1679 | void inline_size |
1080 | wlist_del (WL *head, WL elem) |
1680 | wlist_del (WL *head, WL elem) |
1081 | { |
1681 | { |
1082 | while (*head) |
1682 | while (*head) |
1083 | { |
1683 | { |
1084 | if (*head == elem) |
1684 | if (*head == elem) |
… | |
… | |
1089 | |
1689 | |
1090 | head = &(*head)->next; |
1690 | head = &(*head)->next; |
1091 | } |
1691 | } |
1092 | } |
1692 | } |
1093 | |
1693 | |
1094 | inline void |
1694 | void inline_speed |
1095 | ev_clear_pending (EV_P_ W w) |
1695 | clear_pending (EV_P_ W w) |
1096 | { |
1696 | { |
1097 | if (w->pending) |
1697 | if (w->pending) |
1098 | { |
1698 | { |
1099 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1699 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1100 | w->pending = 0; |
1700 | w->pending = 0; |
1101 | } |
1701 | } |
1102 | } |
1702 | } |
1103 | |
1703 | |
1104 | inline void |
1704 | int |
|
|
1705 | ev_clear_pending (EV_P_ void *w) |
|
|
1706 | { |
|
|
1707 | W w_ = (W)w; |
|
|
1708 | int pending = w_->pending; |
|
|
1709 | |
|
|
1710 | if (expect_true (pending)) |
|
|
1711 | { |
|
|
1712 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1713 | w_->pending = 0; |
|
|
1714 | p->w = 0; |
|
|
1715 | return p->events; |
|
|
1716 | } |
|
|
1717 | else |
|
|
1718 | return 0; |
|
|
1719 | } |
|
|
1720 | |
|
|
1721 | void inline_size |
|
|
1722 | pri_adjust (EV_P_ W w) |
|
|
1723 | { |
|
|
1724 | int pri = w->priority; |
|
|
1725 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1726 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1727 | w->priority = pri; |
|
|
1728 | } |
|
|
1729 | |
|
|
1730 | void inline_speed |
1105 | ev_start (EV_P_ W w, int active) |
1731 | ev_start (EV_P_ W w, int active) |
1106 | { |
1732 | { |
1107 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1733 | pri_adjust (EV_A_ w); |
1108 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1109 | |
|
|
1110 | w->active = active; |
1734 | w->active = active; |
1111 | ev_ref (EV_A); |
1735 | ev_ref (EV_A); |
1112 | } |
1736 | } |
1113 | |
1737 | |
1114 | inline void |
1738 | void inline_size |
1115 | ev_stop (EV_P_ W w) |
1739 | ev_stop (EV_P_ W w) |
1116 | { |
1740 | { |
1117 | ev_unref (EV_A); |
1741 | ev_unref (EV_A); |
1118 | w->active = 0; |
1742 | w->active = 0; |
1119 | } |
1743 | } |
1120 | |
1744 | |
1121 | /*****************************************************************************/ |
1745 | /*****************************************************************************/ |
1122 | |
1746 | |
1123 | void |
1747 | void noinline |
1124 | ev_io_start (EV_P_ struct ev_io *w) |
1748 | ev_io_start (EV_P_ ev_io *w) |
1125 | { |
1749 | { |
1126 | int fd = w->fd; |
1750 | int fd = w->fd; |
1127 | |
1751 | |
1128 | if (ev_is_active (w)) |
1752 | if (expect_false (ev_is_active (w))) |
1129 | return; |
1753 | return; |
1130 | |
1754 | |
1131 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1755 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1132 | |
1756 | |
1133 | ev_start (EV_A_ (W)w, 1); |
1757 | ev_start (EV_A_ (W)w, 1); |
1134 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1758 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1135 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1759 | wlist_add (&anfds[fd].head, (WL)w); |
1136 | |
1760 | |
1137 | fd_change (EV_A_ fd); |
1761 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1762 | w->events &= ~EV_IOFDSET; |
1138 | } |
1763 | } |
1139 | |
1764 | |
1140 | void |
1765 | void noinline |
1141 | ev_io_stop (EV_P_ struct ev_io *w) |
1766 | ev_io_stop (EV_P_ ev_io *w) |
1142 | { |
1767 | { |
1143 | ev_clear_pending (EV_A_ (W)w); |
1768 | clear_pending (EV_A_ (W)w); |
1144 | if (!ev_is_active (w)) |
1769 | if (expect_false (!ev_is_active (w))) |
1145 | return; |
1770 | return; |
1146 | |
1771 | |
|
|
1772 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1773 | |
1147 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1774 | wlist_del (&anfds[w->fd].head, (WL)w); |
1148 | ev_stop (EV_A_ (W)w); |
1775 | ev_stop (EV_A_ (W)w); |
1149 | |
1776 | |
1150 | fd_change (EV_A_ w->fd); |
1777 | fd_change (EV_A_ w->fd, 1); |
1151 | } |
1778 | } |
1152 | |
1779 | |
1153 | void |
1780 | void noinline |
1154 | ev_timer_start (EV_P_ struct ev_timer *w) |
1781 | ev_timer_start (EV_P_ ev_timer *w) |
1155 | { |
1782 | { |
1156 | if (ev_is_active (w)) |
1783 | if (expect_false (ev_is_active (w))) |
1157 | return; |
1784 | return; |
1158 | |
1785 | |
1159 | ((WT)w)->at += mn_now; |
1786 | ((WT)w)->at += mn_now; |
1160 | |
1787 | |
1161 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1788 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1162 | |
1789 | |
1163 | ev_start (EV_A_ (W)w, ++timercnt); |
1790 | ev_start (EV_A_ (W)w, ++timercnt); |
1164 | array_needsize (timers, timermax, timercnt, ); |
1791 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1165 | timers [timercnt - 1] = w; |
1792 | timers [timercnt - 1] = (WT)w; |
1166 | upheap ((WT *)timers, timercnt - 1); |
1793 | upheap (timers, timercnt - 1); |
1167 | |
1794 | |
1168 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1795 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1169 | } |
1796 | } |
1170 | |
1797 | |
1171 | void |
1798 | void noinline |
1172 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1799 | ev_timer_stop (EV_P_ ev_timer *w) |
1173 | { |
1800 | { |
1174 | ev_clear_pending (EV_A_ (W)w); |
1801 | clear_pending (EV_A_ (W)w); |
1175 | if (!ev_is_active (w)) |
1802 | if (expect_false (!ev_is_active (w))) |
1176 | return; |
1803 | return; |
1177 | |
1804 | |
1178 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1805 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1179 | |
1806 | |
1180 | if (((W)w)->active < timercnt--) |
1807 | { |
|
|
1808 | int active = ((W)w)->active; |
|
|
1809 | |
|
|
1810 | if (expect_true (--active < --timercnt)) |
1181 | { |
1811 | { |
1182 | timers [((W)w)->active - 1] = timers [timercnt]; |
1812 | timers [active] = timers [timercnt]; |
1183 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1813 | adjustheap (timers, timercnt, active); |
1184 | } |
1814 | } |
|
|
1815 | } |
1185 | |
1816 | |
1186 | ((WT)w)->at = w->repeat; |
1817 | ((WT)w)->at -= mn_now; |
1187 | |
1818 | |
1188 | ev_stop (EV_A_ (W)w); |
1819 | ev_stop (EV_A_ (W)w); |
1189 | } |
1820 | } |
1190 | |
1821 | |
1191 | void |
1822 | void noinline |
1192 | ev_timer_again (EV_P_ struct ev_timer *w) |
1823 | ev_timer_again (EV_P_ ev_timer *w) |
1193 | { |
1824 | { |
1194 | if (ev_is_active (w)) |
1825 | if (ev_is_active (w)) |
1195 | { |
1826 | { |
1196 | if (w->repeat) |
1827 | if (w->repeat) |
1197 | { |
1828 | { |
1198 | ((WT)w)->at = mn_now + w->repeat; |
1829 | ((WT)w)->at = mn_now + w->repeat; |
1199 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1830 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1200 | } |
1831 | } |
1201 | else |
1832 | else |
1202 | ev_timer_stop (EV_A_ w); |
1833 | ev_timer_stop (EV_A_ w); |
1203 | } |
1834 | } |
1204 | else if (w->repeat) |
1835 | else if (w->repeat) |
|
|
1836 | { |
|
|
1837 | w->at = w->repeat; |
1205 | ev_timer_start (EV_A_ w); |
1838 | ev_timer_start (EV_A_ w); |
|
|
1839 | } |
1206 | } |
1840 | } |
1207 | |
1841 | |
1208 | void |
1842 | #if EV_PERIODIC_ENABLE |
|
|
1843 | void noinline |
1209 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1844 | ev_periodic_start (EV_P_ ev_periodic *w) |
1210 | { |
1845 | { |
1211 | if (ev_is_active (w)) |
1846 | if (expect_false (ev_is_active (w))) |
1212 | return; |
1847 | return; |
1213 | |
1848 | |
|
|
1849 | if (w->reschedule_cb) |
|
|
1850 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1851 | else if (w->interval) |
|
|
1852 | { |
1214 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1853 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1215 | |
|
|
1216 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1854 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1217 | if (w->interval) |
|
|
1218 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1855 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1856 | } |
|
|
1857 | else |
|
|
1858 | ((WT)w)->at = w->offset; |
1219 | |
1859 | |
1220 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1860 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1221 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1861 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1222 | periodics [periodiccnt - 1] = w; |
1862 | periodics [periodiccnt - 1] = (WT)w; |
1223 | upheap ((WT *)periodics, periodiccnt - 1); |
1863 | upheap (periodics, periodiccnt - 1); |
1224 | |
1864 | |
1225 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1865 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1226 | } |
1866 | } |
1227 | |
1867 | |
1228 | void |
1868 | void noinline |
1229 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1869 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1230 | { |
1870 | { |
1231 | ev_clear_pending (EV_A_ (W)w); |
1871 | clear_pending (EV_A_ (W)w); |
1232 | if (!ev_is_active (w)) |
1872 | if (expect_false (!ev_is_active (w))) |
1233 | return; |
1873 | return; |
1234 | |
1874 | |
1235 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1875 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1236 | |
1876 | |
1237 | if (((W)w)->active < periodiccnt--) |
1877 | { |
|
|
1878 | int active = ((W)w)->active; |
|
|
1879 | |
|
|
1880 | if (expect_true (--active < --periodiccnt)) |
1238 | { |
1881 | { |
1239 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1882 | periodics [active] = periodics [periodiccnt]; |
1240 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1883 | adjustheap (periodics, periodiccnt, active); |
1241 | } |
1884 | } |
|
|
1885 | } |
1242 | |
1886 | |
1243 | ev_stop (EV_A_ (W)w); |
1887 | ev_stop (EV_A_ (W)w); |
1244 | } |
1888 | } |
1245 | |
1889 | |
1246 | void |
1890 | void noinline |
1247 | ev_idle_start (EV_P_ struct ev_idle *w) |
1891 | ev_periodic_again (EV_P_ ev_periodic *w) |
1248 | { |
1892 | { |
1249 | if (ev_is_active (w)) |
1893 | /* TODO: use adjustheap and recalculation */ |
1250 | return; |
|
|
1251 | |
|
|
1252 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1253 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1254 | idles [idlecnt - 1] = w; |
|
|
1255 | } |
|
|
1256 | |
|
|
1257 | void |
|
|
1258 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1259 | { |
|
|
1260 | ev_clear_pending (EV_A_ (W)w); |
|
|
1261 | if (ev_is_active (w)) |
|
|
1262 | return; |
|
|
1263 | |
|
|
1264 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1265 | ev_stop (EV_A_ (W)w); |
1894 | ev_periodic_stop (EV_A_ w); |
|
|
1895 | ev_periodic_start (EV_A_ w); |
1266 | } |
1896 | } |
1267 | |
1897 | #endif |
1268 | void |
|
|
1269 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1270 | { |
|
|
1271 | if (ev_is_active (w)) |
|
|
1272 | return; |
|
|
1273 | |
|
|
1274 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1275 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1276 | prepares [preparecnt - 1] = w; |
|
|
1277 | } |
|
|
1278 | |
|
|
1279 | void |
|
|
1280 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1281 | { |
|
|
1282 | ev_clear_pending (EV_A_ (W)w); |
|
|
1283 | if (ev_is_active (w)) |
|
|
1284 | return; |
|
|
1285 | |
|
|
1286 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1287 | ev_stop (EV_A_ (W)w); |
|
|
1288 | } |
|
|
1289 | |
|
|
1290 | void |
|
|
1291 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1292 | { |
|
|
1293 | if (ev_is_active (w)) |
|
|
1294 | return; |
|
|
1295 | |
|
|
1296 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1297 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1298 | checks [checkcnt - 1] = w; |
|
|
1299 | } |
|
|
1300 | |
|
|
1301 | void |
|
|
1302 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1303 | { |
|
|
1304 | ev_clear_pending (EV_A_ (W)w); |
|
|
1305 | if (ev_is_active (w)) |
|
|
1306 | return; |
|
|
1307 | |
|
|
1308 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1309 | ev_stop (EV_A_ (W)w); |
|
|
1310 | } |
|
|
1311 | |
1898 | |
1312 | #ifndef SA_RESTART |
1899 | #ifndef SA_RESTART |
1313 | # define SA_RESTART 0 |
1900 | # define SA_RESTART 0 |
1314 | #endif |
1901 | #endif |
1315 | |
1902 | |
1316 | void |
1903 | void noinline |
1317 | ev_signal_start (EV_P_ struct ev_signal *w) |
1904 | ev_signal_start (EV_P_ ev_signal *w) |
1318 | { |
1905 | { |
1319 | #if EV_MULTIPLICITY |
1906 | #if EV_MULTIPLICITY |
1320 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1907 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1321 | #endif |
1908 | #endif |
1322 | if (ev_is_active (w)) |
1909 | if (expect_false (ev_is_active (w))) |
1323 | return; |
1910 | return; |
1324 | |
1911 | |
1325 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1912 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1326 | |
1913 | |
|
|
1914 | evpipe_init (EV_A); |
|
|
1915 | |
|
|
1916 | { |
|
|
1917 | #ifndef _WIN32 |
|
|
1918 | sigset_t full, prev; |
|
|
1919 | sigfillset (&full); |
|
|
1920 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1921 | #endif |
|
|
1922 | |
|
|
1923 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1924 | |
|
|
1925 | #ifndef _WIN32 |
|
|
1926 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1927 | #endif |
|
|
1928 | } |
|
|
1929 | |
1327 | ev_start (EV_A_ (W)w, 1); |
1930 | ev_start (EV_A_ (W)w, 1); |
1328 | array_needsize (signals, signalmax, w->signum, signals_init); |
|
|
1329 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1931 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1330 | |
1932 | |
1331 | if (!((WL)w)->next) |
1933 | if (!((WL)w)->next) |
1332 | { |
1934 | { |
1333 | #if WIN32 |
1935 | #if _WIN32 |
1334 | signal (w->signum, sighandler); |
1936 | signal (w->signum, ev_sighandler); |
1335 | #else |
1937 | #else |
1336 | struct sigaction sa; |
1938 | struct sigaction sa; |
1337 | sa.sa_handler = sighandler; |
1939 | sa.sa_handler = ev_sighandler; |
1338 | sigfillset (&sa.sa_mask); |
1940 | sigfillset (&sa.sa_mask); |
1339 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1941 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1340 | sigaction (w->signum, &sa, 0); |
1942 | sigaction (w->signum, &sa, 0); |
1341 | #endif |
1943 | #endif |
1342 | } |
1944 | } |
1343 | } |
1945 | } |
1344 | |
1946 | |
1345 | void |
1947 | void noinline |
1346 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1948 | ev_signal_stop (EV_P_ ev_signal *w) |
1347 | { |
1949 | { |
1348 | ev_clear_pending (EV_A_ (W)w); |
1950 | clear_pending (EV_A_ (W)w); |
1349 | if (!ev_is_active (w)) |
1951 | if (expect_false (!ev_is_active (w))) |
1350 | return; |
1952 | return; |
1351 | |
1953 | |
1352 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1954 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1353 | ev_stop (EV_A_ (W)w); |
1955 | ev_stop (EV_A_ (W)w); |
1354 | |
1956 | |
1355 | if (!signals [w->signum - 1].head) |
1957 | if (!signals [w->signum - 1].head) |
1356 | signal (w->signum, SIG_DFL); |
1958 | signal (w->signum, SIG_DFL); |
1357 | } |
1959 | } |
1358 | |
1960 | |
1359 | void |
1961 | void |
1360 | ev_child_start (EV_P_ struct ev_child *w) |
1962 | ev_child_start (EV_P_ ev_child *w) |
1361 | { |
1963 | { |
1362 | #if EV_MULTIPLICITY |
1964 | #if EV_MULTIPLICITY |
1363 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
1965 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1364 | #endif |
1966 | #endif |
1365 | if (ev_is_active (w)) |
1967 | if (expect_false (ev_is_active (w))) |
1366 | return; |
1968 | return; |
1367 | |
1969 | |
1368 | ev_start (EV_A_ (W)w, 1); |
1970 | ev_start (EV_A_ (W)w, 1); |
1369 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1971 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1370 | } |
1972 | } |
1371 | |
1973 | |
1372 | void |
1974 | void |
1373 | ev_child_stop (EV_P_ struct ev_child *w) |
1975 | ev_child_stop (EV_P_ ev_child *w) |
1374 | { |
1976 | { |
1375 | ev_clear_pending (EV_A_ (W)w); |
1977 | clear_pending (EV_A_ (W)w); |
1376 | if (ev_is_active (w)) |
1978 | if (expect_false (!ev_is_active (w))) |
1377 | return; |
1979 | return; |
1378 | |
1980 | |
1379 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1981 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1380 | ev_stop (EV_A_ (W)w); |
1982 | ev_stop (EV_A_ (W)w); |
1381 | } |
1983 | } |
1382 | |
1984 | |
|
|
1985 | #if EV_STAT_ENABLE |
|
|
1986 | |
|
|
1987 | # ifdef _WIN32 |
|
|
1988 | # undef lstat |
|
|
1989 | # define lstat(a,b) _stati64 (a,b) |
|
|
1990 | # endif |
|
|
1991 | |
|
|
1992 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1993 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1994 | |
|
|
1995 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1996 | |
|
|
1997 | #if EV_USE_INOTIFY |
|
|
1998 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1999 | |
|
|
2000 | static void noinline |
|
|
2001 | infy_add (EV_P_ ev_stat *w) |
|
|
2002 | { |
|
|
2003 | 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); |
|
|
2004 | |
|
|
2005 | if (w->wd < 0) |
|
|
2006 | { |
|
|
2007 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2008 | |
|
|
2009 | /* monitor some parent directory for speedup hints */ |
|
|
2010 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2011 | { |
|
|
2012 | char path [4096]; |
|
|
2013 | strcpy (path, w->path); |
|
|
2014 | |
|
|
2015 | do |
|
|
2016 | { |
|
|
2017 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2018 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2019 | |
|
|
2020 | char *pend = strrchr (path, '/'); |
|
|
2021 | |
|
|
2022 | if (!pend) |
|
|
2023 | break; /* whoops, no '/', complain to your admin */ |
|
|
2024 | |
|
|
2025 | *pend = 0; |
|
|
2026 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2027 | } |
|
|
2028 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2029 | } |
|
|
2030 | } |
|
|
2031 | else |
|
|
2032 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2033 | |
|
|
2034 | if (w->wd >= 0) |
|
|
2035 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2036 | } |
|
|
2037 | |
|
|
2038 | static void noinline |
|
|
2039 | infy_del (EV_P_ ev_stat *w) |
|
|
2040 | { |
|
|
2041 | int slot; |
|
|
2042 | int wd = w->wd; |
|
|
2043 | |
|
|
2044 | if (wd < 0) |
|
|
2045 | return; |
|
|
2046 | |
|
|
2047 | w->wd = -2; |
|
|
2048 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2049 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2050 | |
|
|
2051 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2052 | inotify_rm_watch (fs_fd, wd); |
|
|
2053 | } |
|
|
2054 | |
|
|
2055 | static void noinline |
|
|
2056 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2057 | { |
|
|
2058 | if (slot < 0) |
|
|
2059 | /* overflow, need to check for all hahs slots */ |
|
|
2060 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2061 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2062 | else |
|
|
2063 | { |
|
|
2064 | WL w_; |
|
|
2065 | |
|
|
2066 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2067 | { |
|
|
2068 | ev_stat *w = (ev_stat *)w_; |
|
|
2069 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2070 | |
|
|
2071 | if (w->wd == wd || wd == -1) |
|
|
2072 | { |
|
|
2073 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2074 | { |
|
|
2075 | w->wd = -1; |
|
|
2076 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2077 | } |
|
|
2078 | |
|
|
2079 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2080 | } |
|
|
2081 | } |
|
|
2082 | } |
|
|
2083 | } |
|
|
2084 | |
|
|
2085 | static void |
|
|
2086 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2087 | { |
|
|
2088 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2089 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2090 | int ofs; |
|
|
2091 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2092 | |
|
|
2093 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2094 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | void inline_size |
|
|
2098 | infy_init (EV_P) |
|
|
2099 | { |
|
|
2100 | if (fs_fd != -2) |
|
|
2101 | return; |
|
|
2102 | |
|
|
2103 | fs_fd = inotify_init (); |
|
|
2104 | |
|
|
2105 | if (fs_fd >= 0) |
|
|
2106 | { |
|
|
2107 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2108 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2109 | ev_io_start (EV_A_ &fs_w); |
|
|
2110 | } |
|
|
2111 | } |
|
|
2112 | |
|
|
2113 | void inline_size |
|
|
2114 | infy_fork (EV_P) |
|
|
2115 | { |
|
|
2116 | int slot; |
|
|
2117 | |
|
|
2118 | if (fs_fd < 0) |
|
|
2119 | return; |
|
|
2120 | |
|
|
2121 | close (fs_fd); |
|
|
2122 | fs_fd = inotify_init (); |
|
|
2123 | |
|
|
2124 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2125 | { |
|
|
2126 | WL w_ = fs_hash [slot].head; |
|
|
2127 | fs_hash [slot].head = 0; |
|
|
2128 | |
|
|
2129 | while (w_) |
|
|
2130 | { |
|
|
2131 | ev_stat *w = (ev_stat *)w_; |
|
|
2132 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2133 | |
|
|
2134 | w->wd = -1; |
|
|
2135 | |
|
|
2136 | if (fs_fd >= 0) |
|
|
2137 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2138 | else |
|
|
2139 | ev_timer_start (EV_A_ &w->timer); |
|
|
2140 | } |
|
|
2141 | |
|
|
2142 | } |
|
|
2143 | } |
|
|
2144 | |
|
|
2145 | #endif |
|
|
2146 | |
|
|
2147 | void |
|
|
2148 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2149 | { |
|
|
2150 | if (lstat (w->path, &w->attr) < 0) |
|
|
2151 | w->attr.st_nlink = 0; |
|
|
2152 | else if (!w->attr.st_nlink) |
|
|
2153 | w->attr.st_nlink = 1; |
|
|
2154 | } |
|
|
2155 | |
|
|
2156 | static void noinline |
|
|
2157 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2158 | { |
|
|
2159 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2160 | |
|
|
2161 | /* we copy this here each the time so that */ |
|
|
2162 | /* prev has the old value when the callback gets invoked */ |
|
|
2163 | w->prev = w->attr; |
|
|
2164 | ev_stat_stat (EV_A_ w); |
|
|
2165 | |
|
|
2166 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2167 | if ( |
|
|
2168 | w->prev.st_dev != w->attr.st_dev |
|
|
2169 | || w->prev.st_ino != w->attr.st_ino |
|
|
2170 | || w->prev.st_mode != w->attr.st_mode |
|
|
2171 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2172 | || w->prev.st_uid != w->attr.st_uid |
|
|
2173 | || w->prev.st_gid != w->attr.st_gid |
|
|
2174 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2175 | || w->prev.st_size != w->attr.st_size |
|
|
2176 | || w->prev.st_atime != w->attr.st_atime |
|
|
2177 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2178 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2179 | ) { |
|
|
2180 | #if EV_USE_INOTIFY |
|
|
2181 | infy_del (EV_A_ w); |
|
|
2182 | infy_add (EV_A_ w); |
|
|
2183 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2184 | #endif |
|
|
2185 | |
|
|
2186 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2187 | } |
|
|
2188 | } |
|
|
2189 | |
|
|
2190 | void |
|
|
2191 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2192 | { |
|
|
2193 | if (expect_false (ev_is_active (w))) |
|
|
2194 | return; |
|
|
2195 | |
|
|
2196 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2197 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2198 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2199 | |
|
|
2200 | ev_stat_stat (EV_A_ w); |
|
|
2201 | |
|
|
2202 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2203 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2204 | |
|
|
2205 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2206 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2207 | |
|
|
2208 | #if EV_USE_INOTIFY |
|
|
2209 | infy_init (EV_A); |
|
|
2210 | |
|
|
2211 | if (fs_fd >= 0) |
|
|
2212 | infy_add (EV_A_ w); |
|
|
2213 | else |
|
|
2214 | #endif |
|
|
2215 | ev_timer_start (EV_A_ &w->timer); |
|
|
2216 | |
|
|
2217 | ev_start (EV_A_ (W)w, 1); |
|
|
2218 | } |
|
|
2219 | |
|
|
2220 | void |
|
|
2221 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2222 | { |
|
|
2223 | clear_pending (EV_A_ (W)w); |
|
|
2224 | if (expect_false (!ev_is_active (w))) |
|
|
2225 | return; |
|
|
2226 | |
|
|
2227 | #if EV_USE_INOTIFY |
|
|
2228 | infy_del (EV_A_ w); |
|
|
2229 | #endif |
|
|
2230 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2231 | |
|
|
2232 | ev_stop (EV_A_ (W)w); |
|
|
2233 | } |
|
|
2234 | #endif |
|
|
2235 | |
|
|
2236 | #if EV_IDLE_ENABLE |
|
|
2237 | void |
|
|
2238 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2239 | { |
|
|
2240 | if (expect_false (ev_is_active (w))) |
|
|
2241 | return; |
|
|
2242 | |
|
|
2243 | pri_adjust (EV_A_ (W)w); |
|
|
2244 | |
|
|
2245 | { |
|
|
2246 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2247 | |
|
|
2248 | ++idleall; |
|
|
2249 | ev_start (EV_A_ (W)w, active); |
|
|
2250 | |
|
|
2251 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2252 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2253 | } |
|
|
2254 | } |
|
|
2255 | |
|
|
2256 | void |
|
|
2257 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2258 | { |
|
|
2259 | clear_pending (EV_A_ (W)w); |
|
|
2260 | if (expect_false (!ev_is_active (w))) |
|
|
2261 | return; |
|
|
2262 | |
|
|
2263 | { |
|
|
2264 | int active = ((W)w)->active; |
|
|
2265 | |
|
|
2266 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2267 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2268 | |
|
|
2269 | ev_stop (EV_A_ (W)w); |
|
|
2270 | --idleall; |
|
|
2271 | } |
|
|
2272 | } |
|
|
2273 | #endif |
|
|
2274 | |
|
|
2275 | void |
|
|
2276 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2277 | { |
|
|
2278 | if (expect_false (ev_is_active (w))) |
|
|
2279 | return; |
|
|
2280 | |
|
|
2281 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2282 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2283 | prepares [preparecnt - 1] = w; |
|
|
2284 | } |
|
|
2285 | |
|
|
2286 | void |
|
|
2287 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2288 | { |
|
|
2289 | clear_pending (EV_A_ (W)w); |
|
|
2290 | if (expect_false (!ev_is_active (w))) |
|
|
2291 | return; |
|
|
2292 | |
|
|
2293 | { |
|
|
2294 | int active = ((W)w)->active; |
|
|
2295 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2296 | ((W)prepares [active - 1])->active = active; |
|
|
2297 | } |
|
|
2298 | |
|
|
2299 | ev_stop (EV_A_ (W)w); |
|
|
2300 | } |
|
|
2301 | |
|
|
2302 | void |
|
|
2303 | ev_check_start (EV_P_ ev_check *w) |
|
|
2304 | { |
|
|
2305 | if (expect_false (ev_is_active (w))) |
|
|
2306 | return; |
|
|
2307 | |
|
|
2308 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2309 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2310 | checks [checkcnt - 1] = w; |
|
|
2311 | } |
|
|
2312 | |
|
|
2313 | void |
|
|
2314 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2315 | { |
|
|
2316 | clear_pending (EV_A_ (W)w); |
|
|
2317 | if (expect_false (!ev_is_active (w))) |
|
|
2318 | return; |
|
|
2319 | |
|
|
2320 | { |
|
|
2321 | int active = ((W)w)->active; |
|
|
2322 | checks [active - 1] = checks [--checkcnt]; |
|
|
2323 | ((W)checks [active - 1])->active = active; |
|
|
2324 | } |
|
|
2325 | |
|
|
2326 | ev_stop (EV_A_ (W)w); |
|
|
2327 | } |
|
|
2328 | |
|
|
2329 | #if EV_EMBED_ENABLE |
|
|
2330 | void noinline |
|
|
2331 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2332 | { |
|
|
2333 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2334 | } |
|
|
2335 | |
|
|
2336 | static void |
|
|
2337 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2338 | { |
|
|
2339 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2340 | |
|
|
2341 | if (ev_cb (w)) |
|
|
2342 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2343 | else |
|
|
2344 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2345 | } |
|
|
2346 | |
|
|
2347 | static void |
|
|
2348 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2349 | { |
|
|
2350 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2351 | |
|
|
2352 | { |
|
|
2353 | struct ev_loop *loop = w->other; |
|
|
2354 | |
|
|
2355 | while (fdchangecnt) |
|
|
2356 | { |
|
|
2357 | fd_reify (EV_A); |
|
|
2358 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2359 | } |
|
|
2360 | } |
|
|
2361 | } |
|
|
2362 | |
|
|
2363 | #if 0 |
|
|
2364 | static void |
|
|
2365 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2366 | { |
|
|
2367 | ev_idle_stop (EV_A_ idle); |
|
|
2368 | } |
|
|
2369 | #endif |
|
|
2370 | |
|
|
2371 | void |
|
|
2372 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2373 | { |
|
|
2374 | if (expect_false (ev_is_active (w))) |
|
|
2375 | return; |
|
|
2376 | |
|
|
2377 | { |
|
|
2378 | struct ev_loop *loop = w->other; |
|
|
2379 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2380 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2381 | } |
|
|
2382 | |
|
|
2383 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2384 | ev_io_start (EV_A_ &w->io); |
|
|
2385 | |
|
|
2386 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2387 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2388 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2389 | |
|
|
2390 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2391 | |
|
|
2392 | ev_start (EV_A_ (W)w, 1); |
|
|
2393 | } |
|
|
2394 | |
|
|
2395 | void |
|
|
2396 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2397 | { |
|
|
2398 | clear_pending (EV_A_ (W)w); |
|
|
2399 | if (expect_false (!ev_is_active (w))) |
|
|
2400 | return; |
|
|
2401 | |
|
|
2402 | ev_io_stop (EV_A_ &w->io); |
|
|
2403 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2404 | |
|
|
2405 | ev_stop (EV_A_ (W)w); |
|
|
2406 | } |
|
|
2407 | #endif |
|
|
2408 | |
|
|
2409 | #if EV_FORK_ENABLE |
|
|
2410 | void |
|
|
2411 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2412 | { |
|
|
2413 | if (expect_false (ev_is_active (w))) |
|
|
2414 | return; |
|
|
2415 | |
|
|
2416 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2417 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2418 | forks [forkcnt - 1] = w; |
|
|
2419 | } |
|
|
2420 | |
|
|
2421 | void |
|
|
2422 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2423 | { |
|
|
2424 | clear_pending (EV_A_ (W)w); |
|
|
2425 | if (expect_false (!ev_is_active (w))) |
|
|
2426 | return; |
|
|
2427 | |
|
|
2428 | { |
|
|
2429 | int active = ((W)w)->active; |
|
|
2430 | forks [active - 1] = forks [--forkcnt]; |
|
|
2431 | ((W)forks [active - 1])->active = active; |
|
|
2432 | } |
|
|
2433 | |
|
|
2434 | ev_stop (EV_A_ (W)w); |
|
|
2435 | } |
|
|
2436 | #endif |
|
|
2437 | |
|
|
2438 | #if EV_ASYNC_ENABLE |
|
|
2439 | void |
|
|
2440 | ev_async_start (EV_P_ ev_async *w) |
|
|
2441 | { |
|
|
2442 | if (expect_false (ev_is_active (w))) |
|
|
2443 | return; |
|
|
2444 | |
|
|
2445 | evpipe_init (EV_A); |
|
|
2446 | |
|
|
2447 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2448 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2449 | asyncs [asynccnt - 1] = w; |
|
|
2450 | } |
|
|
2451 | |
|
|
2452 | void |
|
|
2453 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2454 | { |
|
|
2455 | clear_pending (EV_A_ (W)w); |
|
|
2456 | if (expect_false (!ev_is_active (w))) |
|
|
2457 | return; |
|
|
2458 | |
|
|
2459 | { |
|
|
2460 | int active = ((W)w)->active; |
|
|
2461 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2462 | ((W)asyncs [active - 1])->active = active; |
|
|
2463 | } |
|
|
2464 | |
|
|
2465 | ev_stop (EV_A_ (W)w); |
|
|
2466 | } |
|
|
2467 | |
|
|
2468 | void |
|
|
2469 | ev_async_send (EV_P_ ev_async *w) |
|
|
2470 | { |
|
|
2471 | w->sent = 1; |
|
|
2472 | evpipe_write (EV_A_ &gotasync); |
|
|
2473 | } |
|
|
2474 | #endif |
|
|
2475 | |
1383 | /*****************************************************************************/ |
2476 | /*****************************************************************************/ |
1384 | |
2477 | |
1385 | struct ev_once |
2478 | struct ev_once |
1386 | { |
2479 | { |
1387 | struct ev_io io; |
2480 | ev_io io; |
1388 | struct ev_timer to; |
2481 | ev_timer to; |
1389 | void (*cb)(int revents, void *arg); |
2482 | void (*cb)(int revents, void *arg); |
1390 | void *arg; |
2483 | void *arg; |
1391 | }; |
2484 | }; |
1392 | |
2485 | |
1393 | static void |
2486 | static void |
… | |
… | |
1396 | void (*cb)(int revents, void *arg) = once->cb; |
2489 | void (*cb)(int revents, void *arg) = once->cb; |
1397 | void *arg = once->arg; |
2490 | void *arg = once->arg; |
1398 | |
2491 | |
1399 | ev_io_stop (EV_A_ &once->io); |
2492 | ev_io_stop (EV_A_ &once->io); |
1400 | ev_timer_stop (EV_A_ &once->to); |
2493 | ev_timer_stop (EV_A_ &once->to); |
1401 | free (once); |
2494 | ev_free (once); |
1402 | |
2495 | |
1403 | cb (revents, arg); |
2496 | cb (revents, arg); |
1404 | } |
2497 | } |
1405 | |
2498 | |
1406 | static void |
2499 | static void |
1407 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2500 | once_cb_io (EV_P_ ev_io *w, int revents) |
1408 | { |
2501 | { |
1409 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2502 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1410 | } |
2503 | } |
1411 | |
2504 | |
1412 | static void |
2505 | static void |
1413 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2506 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1414 | { |
2507 | { |
1415 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2508 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1416 | } |
2509 | } |
1417 | |
2510 | |
1418 | void |
2511 | void |
1419 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2512 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1420 | { |
2513 | { |
1421 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
2514 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1422 | |
2515 | |
1423 | if (!once) |
2516 | if (expect_false (!once)) |
|
|
2517 | { |
1424 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2518 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1425 | else |
2519 | return; |
1426 | { |
2520 | } |
|
|
2521 | |
1427 | once->cb = cb; |
2522 | once->cb = cb; |
1428 | once->arg = arg; |
2523 | once->arg = arg; |
1429 | |
2524 | |
1430 | ev_watcher_init (&once->io, once_cb_io); |
2525 | ev_init (&once->io, once_cb_io); |
1431 | if (fd >= 0) |
2526 | if (fd >= 0) |
1432 | { |
2527 | { |
1433 | ev_io_set (&once->io, fd, events); |
2528 | ev_io_set (&once->io, fd, events); |
1434 | ev_io_start (EV_A_ &once->io); |
2529 | ev_io_start (EV_A_ &once->io); |
1435 | } |
2530 | } |
1436 | |
2531 | |
1437 | ev_watcher_init (&once->to, once_cb_to); |
2532 | ev_init (&once->to, once_cb_to); |
1438 | if (timeout >= 0.) |
2533 | if (timeout >= 0.) |
1439 | { |
2534 | { |
1440 | ev_timer_set (&once->to, timeout, 0.); |
2535 | ev_timer_set (&once->to, timeout, 0.); |
1441 | ev_timer_start (EV_A_ &once->to); |
2536 | ev_timer_start (EV_A_ &once->to); |
1442 | } |
|
|
1443 | } |
2537 | } |
1444 | } |
2538 | } |
1445 | |
2539 | |
|
|
2540 | #if EV_MULTIPLICITY |
|
|
2541 | #include "ev_wrap.h" |
|
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2542 | #endif |
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2543 | |
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|
2544 | #ifdef __cplusplus |
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|
2545 | } |
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2546 | #endif |
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2547 | |