… | |
… | |
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 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> |
… | |
… | |
64 | #include <assert.h> |
132 | #include <assert.h> |
65 | #include <errno.h> |
133 | #include <errno.h> |
66 | #include <sys/types.h> |
134 | #include <sys/types.h> |
67 | #include <time.h> |
135 | #include <time.h> |
68 | |
136 | |
69 | #ifndef PERL |
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70 | # include <signal.h> |
137 | #include <signal.h> |
71 | #endif |
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72 | |
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 | |
73 | #ifndef WIN32 |
145 | #ifndef _WIN32 |
74 | # include <unistd.h> |
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75 | # include <sys/time.h> |
146 | # include <sys/time.h> |
76 | # 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 |
77 | #endif |
154 | # endif |
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155 | #endif |
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156 | |
78 | /**/ |
157 | /**/ |
79 | |
158 | |
80 | #ifndef EV_USE_MONOTONIC |
159 | #ifndef EV_USE_MONOTONIC |
81 | # 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 |
82 | #endif |
169 | #endif |
83 | |
170 | |
84 | #ifndef EV_USE_SELECT |
171 | #ifndef EV_USE_SELECT |
85 | # define EV_USE_SELECT 1 |
172 | # define EV_USE_SELECT 1 |
86 | #endif |
173 | #endif |
87 | |
174 | |
88 | #ifndef EV_USE_POLL |
175 | #ifndef EV_USE_POLL |
89 | # 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 |
90 | #endif |
181 | #endif |
91 | |
182 | |
92 | #ifndef EV_USE_EPOLL |
183 | #ifndef EV_USE_EPOLL |
93 | # define EV_USE_EPOLL 0 |
184 | # define EV_USE_EPOLL 0 |
94 | #endif |
185 | #endif |
95 | |
186 | |
96 | #ifndef EV_USE_KQUEUE |
187 | #ifndef EV_USE_KQUEUE |
97 | # define EV_USE_KQUEUE 0 |
188 | # define EV_USE_KQUEUE 0 |
98 | #endif |
189 | #endif |
99 | |
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 | |
100 | #ifndef EV_USE_WIN32 |
195 | #ifndef EV_USE_INOTIFY |
101 | # ifdef WIN32 |
196 | # define EV_USE_INOTIFY 0 |
102 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
197 | #endif |
103 | # undef EV_USE_SELECT |
198 | |
104 | # define EV_USE_SELECT 1 |
199 | #ifndef EV_PID_HASHSIZE |
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200 | # if EV_MINIMAL |
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201 | # define EV_PID_HASHSIZE 1 |
105 | # else |
202 | # else |
106 | # define EV_USE_WIN32 0 |
203 | # define EV_PID_HASHSIZE 16 |
107 | # endif |
204 | # endif |
108 | #endif |
205 | #endif |
109 | |
206 | |
110 | #ifndef EV_USE_REALTIME |
207 | #ifndef EV_INOTIFY_HASHSIZE |
111 | # 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 |
112 | #endif |
213 | #endif |
113 | |
214 | |
114 | /**/ |
215 | /**/ |
115 | |
216 | |
116 | #ifndef CLOCK_MONOTONIC |
217 | #ifndef CLOCK_MONOTONIC |
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121 | #ifndef CLOCK_REALTIME |
222 | #ifndef CLOCK_REALTIME |
122 | # undef EV_USE_REALTIME |
223 | # undef EV_USE_REALTIME |
123 | # define EV_USE_REALTIME 0 |
224 | # define EV_USE_REALTIME 0 |
124 | #endif |
225 | #endif |
125 | |
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 | |
126 | /**/ |
246 | /**/ |
127 | |
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 | |
128 | #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) */ |
129 | #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) */ |
130 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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131 | /*#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 */ |
132 | |
261 | |
133 | #include "ev.h" |
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134 | |
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135 | #if __GNUC__ >= 3 |
262 | #if __GNUC__ >= 4 |
136 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
137 | # define inline inline |
264 | # define noinline __attribute__ ((noinline)) |
138 | #else |
265 | #else |
139 | # define expect(expr,value) (expr) |
266 | # define expect(expr,value) (expr) |
140 | # 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 |
141 | #endif |
271 | #endif |
142 | |
272 | |
143 | #define expect_false(expr) expect ((expr) != 0, 0) |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
144 | #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 |
145 | |
282 | |
146 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
283 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
147 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
284 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
148 | |
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 | |
149 | typedef struct ev_watcher *W; |
289 | typedef ev_watcher *W; |
150 | typedef struct ev_watcher_list *WL; |
290 | typedef ev_watcher_list *WL; |
151 | typedef struct ev_watcher_time *WT; |
291 | typedef ev_watcher_time *WT; |
152 | |
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 */ |
153 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
296 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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297 | #endif |
154 | |
298 | |
155 | #if WIN32 |
299 | #ifdef _WIN32 |
156 | /* note: the comment below could not be substantiated, but what would I care */ |
300 | # include "ev_win32.c" |
157 | /* MSDN says this is required to handle SIGFPE */ |
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158 | volatile double SIGFPE_REQ = 0.0f; |
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159 | #endif |
301 | #endif |
160 | |
302 | |
161 | /*****************************************************************************/ |
303 | /*****************************************************************************/ |
162 | |
304 | |
163 | static void (*syserr_cb)(const char *msg); |
305 | static void (*syserr_cb)(const char *msg); |
164 | |
306 | |
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307 | void |
165 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
308 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
166 | { |
309 | { |
167 | syserr_cb = cb; |
310 | syserr_cb = cb; |
168 | } |
311 | } |
169 | |
312 | |
170 | static void |
313 | static void noinline |
171 | syserr (const char *msg) |
314 | syserr (const char *msg) |
172 | { |
315 | { |
173 | if (!msg) |
316 | if (!msg) |
174 | msg = "(libev) system error"; |
317 | msg = "(libev) system error"; |
175 | |
318 | |
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182 | } |
325 | } |
183 | } |
326 | } |
184 | |
327 | |
185 | static void *(*alloc)(void *ptr, long size); |
328 | static void *(*alloc)(void *ptr, long size); |
186 | |
329 | |
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330 | void |
187 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
188 | { |
332 | { |
189 | alloc = cb; |
333 | alloc = cb; |
190 | } |
334 | } |
191 | |
335 | |
192 | static void * |
336 | inline_speed void * |
193 | ev_realloc (void *ptr, long size) |
337 | ev_realloc (void *ptr, long size) |
194 | { |
338 | { |
195 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
196 | |
340 | |
197 | if (!ptr && size) |
341 | if (!ptr && size) |
… | |
… | |
211 | typedef struct |
355 | typedef struct |
212 | { |
356 | { |
213 | WL head; |
357 | WL head; |
214 | unsigned char events; |
358 | unsigned char events; |
215 | 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 |
216 | } ANFD; |
363 | } ANFD; |
217 | |
364 | |
218 | typedef struct |
365 | typedef struct |
219 | { |
366 | { |
220 | W w; |
367 | W w; |
221 | int events; |
368 | int events; |
222 | } ANPENDING; |
369 | } ANPENDING; |
223 | |
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 | |
224 | #if EV_MULTIPLICITY |
378 | #if EV_MULTIPLICITY |
225 | |
379 | |
226 | struct ev_loop |
380 | struct ev_loop |
227 | { |
381 | { |
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382 | ev_tstamp ev_rt_now; |
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383 | #define ev_rt_now ((loop)->ev_rt_now) |
228 | # define VAR(name,decl) decl; |
384 | #define VAR(name,decl) decl; |
229 | # include "ev_vars.h" |
385 | #include "ev_vars.h" |
230 | }; |
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231 | # undef VAR |
386 | #undef VAR |
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387 | }; |
232 | # 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; |
233 | |
392 | |
234 | #else |
393 | #else |
235 | |
394 | |
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395 | ev_tstamp ev_rt_now; |
236 | # define VAR(name,decl) static decl; |
396 | #define VAR(name,decl) static decl; |
237 | # include "ev_vars.h" |
397 | #include "ev_vars.h" |
238 | # undef VAR |
398 | #undef VAR |
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399 | |
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400 | static int ev_default_loop_ptr; |
239 | |
401 | |
240 | #endif |
402 | #endif |
241 | |
403 | |
242 | /*****************************************************************************/ |
404 | /*****************************************************************************/ |
243 | |
405 | |
244 | inline ev_tstamp |
406 | ev_tstamp |
245 | ev_time (void) |
407 | ev_time (void) |
246 | { |
408 | { |
247 | #if EV_USE_REALTIME |
409 | #if EV_USE_REALTIME |
248 | struct timespec ts; |
410 | struct timespec ts; |
249 | clock_gettime (CLOCK_REALTIME, &ts); |
411 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
253 | gettimeofday (&tv, 0); |
415 | gettimeofday (&tv, 0); |
254 | return tv.tv_sec + tv.tv_usec * 1e-6; |
416 | return tv.tv_sec + tv.tv_usec * 1e-6; |
255 | #endif |
417 | #endif |
256 | } |
418 | } |
257 | |
419 | |
258 | inline ev_tstamp |
420 | ev_tstamp inline_size |
259 | get_clock (void) |
421 | get_clock (void) |
260 | { |
422 | { |
261 | #if EV_USE_MONOTONIC |
423 | #if EV_USE_MONOTONIC |
262 | if (expect_true (have_monotonic)) |
424 | if (expect_true (have_monotonic)) |
263 | { |
425 | { |
… | |
… | |
268 | #endif |
430 | #endif |
269 | |
431 | |
270 | return ev_time (); |
432 | return ev_time (); |
271 | } |
433 | } |
272 | |
434 | |
|
|
435 | #if EV_MULTIPLICITY |
273 | ev_tstamp |
436 | ev_tstamp |
274 | ev_now (EV_P) |
437 | ev_now (EV_P) |
275 | { |
438 | { |
276 | return rt_now; |
439 | return ev_rt_now; |
277 | } |
440 | } |
|
|
441 | #endif |
278 | |
442 | |
279 | #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; |
280 | |
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 (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 | |
281 | #define array_needsize(base,cur,cnt,init) \ |
498 | #define array_needsize(type,base,cur,cnt,init) \ |
282 | if (expect_false ((cnt) > cur)) \ |
499 | if (expect_false ((cnt) > (cur))) \ |
283 | { \ |
500 | { \ |
284 | int newcnt = cur; \ |
501 | int ocur_ = (cur); \ |
285 | do \ |
502 | (base) = (type *)array_realloc \ |
286 | { \ |
503 | (sizeof (type), (base), &(cur), (cnt)); \ |
287 | newcnt = array_roundsize (base, newcnt << 1); \ |
504 | init ((base) + (ocur_), (cur) - ocur_); \ |
288 | } \ |
|
|
289 | while ((cnt) > newcnt); \ |
|
|
290 | \ |
|
|
291 | base = ev_realloc (base, sizeof (*base) * (newcnt)); \ |
|
|
292 | init (base + cur, newcnt - cur); \ |
|
|
293 | cur = newcnt; \ |
|
|
294 | } |
505 | } |
295 | |
506 | |
|
|
507 | #if 0 |
296 | #define array_slim(stem) \ |
508 | #define array_slim(type,stem) \ |
297 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
509 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
298 | { \ |
510 | { \ |
299 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
511 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
300 | base = ev_realloc (base, sizeof (*base) * (stem ## max)); \ |
512 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
301 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
513 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
302 | } |
514 | } |
303 | |
515 | #endif |
304 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
305 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
306 | #define array_free_microshit(stem) \ |
|
|
307 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
308 | |
516 | |
309 | #define array_free(stem, idx) \ |
517 | #define array_free(stem, idx) \ |
310 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
518 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
311 | |
519 | |
312 | /*****************************************************************************/ |
520 | /*****************************************************************************/ |
313 | |
521 | |
314 | 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 |
315 | anfds_init (ANFD *base, int count) |
551 | anfds_init (ANFD *base, int count) |
316 | { |
552 | { |
317 | while (count--) |
553 | while (count--) |
318 | { |
554 | { |
319 | base->head = 0; |
555 | base->head = 0; |
… | |
… | |
322 | |
558 | |
323 | ++base; |
559 | ++base; |
324 | } |
560 | } |
325 | } |
561 | } |
326 | |
562 | |
327 | static void |
563 | void inline_speed |
328 | event (EV_P_ W w, int events) |
|
|
329 | { |
|
|
330 | if (w->pending) |
|
|
331 | { |
|
|
332 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
333 | return; |
|
|
334 | } |
|
|
335 | |
|
|
336 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
337 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void)); |
|
|
338 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
339 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
340 | } |
|
|
341 | |
|
|
342 | static void |
|
|
343 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
344 | { |
|
|
345 | int i; |
|
|
346 | |
|
|
347 | for (i = 0; i < eventcnt; ++i) |
|
|
348 | event (EV_A_ events [i], type); |
|
|
349 | } |
|
|
350 | |
|
|
351 | static void |
|
|
352 | fd_event (EV_P_ int fd, int events) |
564 | fd_event (EV_P_ int fd, int revents) |
353 | { |
565 | { |
354 | ANFD *anfd = anfds + fd; |
566 | ANFD *anfd = anfds + fd; |
355 | struct ev_io *w; |
567 | ev_io *w; |
356 | |
568 | |
357 | 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) |
358 | { |
570 | { |
359 | int ev = w->events & events; |
571 | int ev = w->events & revents; |
360 | |
572 | |
361 | if (ev) |
573 | if (ev) |
362 | event (EV_A_ (W)w, ev); |
574 | ev_feed_event (EV_A_ (W)w, ev); |
363 | } |
575 | } |
364 | } |
576 | } |
365 | |
577 | |
366 | /*****************************************************************************/ |
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 | } |
367 | |
584 | |
368 | static void |
585 | void inline_size |
369 | fd_reify (EV_P) |
586 | fd_reify (EV_P) |
370 | { |
587 | { |
371 | int i; |
588 | int i; |
372 | |
589 | |
373 | for (i = 0; i < fdchangecnt; ++i) |
590 | for (i = 0; i < fdchangecnt; ++i) |
374 | { |
591 | { |
375 | int fd = fdchanges [i]; |
592 | int fd = fdchanges [i]; |
376 | ANFD *anfd = anfds + fd; |
593 | ANFD *anfd = anfds + fd; |
377 | struct ev_io *w; |
594 | ev_io *w; |
378 | |
595 | |
379 | int events = 0; |
596 | unsigned char events = 0; |
380 | |
597 | |
381 | 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) |
382 | events |= w->events; |
599 | events |= (unsigned char)w->events; |
383 | |
600 | |
|
|
601 | #if EV_SELECT_IS_WINSOCKET |
|
|
602 | if (events) |
|
|
603 | { |
|
|
604 | unsigned long argp; |
|
|
605 | anfd->handle = _get_osfhandle (fd); |
|
|
606 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
607 | } |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | { |
|
|
611 | unsigned char o_events = anfd->events; |
|
|
612 | unsigned char o_reify = anfd->reify; |
|
|
613 | |
384 | anfd->reify = 0; |
614 | anfd->reify = 0; |
385 | |
|
|
386 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
387 | anfd->events = events; |
615 | anfd->events = events; |
|
|
616 | |
|
|
617 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
618 | backend_modify (EV_A_ fd, o_events, events); |
|
|
619 | } |
388 | } |
620 | } |
389 | |
621 | |
390 | fdchangecnt = 0; |
622 | fdchangecnt = 0; |
391 | } |
623 | } |
392 | |
624 | |
393 | static void |
625 | void inline_size |
394 | fd_change (EV_P_ int fd) |
626 | fd_change (EV_P_ int fd, int flags) |
395 | { |
627 | { |
396 | if (anfds [fd].reify) |
628 | unsigned char reify = anfds [fd].reify; |
397 | return; |
|
|
398 | |
|
|
399 | anfds [fd].reify = 1; |
629 | anfds [fd].reify |= flags; |
400 | |
630 | |
|
|
631 | if (expect_true (!reify)) |
|
|
632 | { |
401 | ++fdchangecnt; |
633 | ++fdchangecnt; |
402 | array_needsize (fdchanges, fdchangemax, fdchangecnt, (void)); |
634 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
403 | fdchanges [fdchangecnt - 1] = fd; |
635 | fdchanges [fdchangecnt - 1] = fd; |
|
|
636 | } |
404 | } |
637 | } |
405 | |
638 | |
406 | static void |
639 | void inline_speed |
407 | fd_kill (EV_P_ int fd) |
640 | fd_kill (EV_P_ int fd) |
408 | { |
641 | { |
409 | struct ev_io *w; |
642 | ev_io *w; |
410 | |
643 | |
411 | while ((w = (struct ev_io *)anfds [fd].head)) |
644 | while ((w = (ev_io *)anfds [fd].head)) |
412 | { |
645 | { |
413 | ev_io_stop (EV_A_ w); |
646 | ev_io_stop (EV_A_ w); |
414 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
647 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
415 | } |
648 | } |
416 | } |
649 | } |
417 | |
650 | |
418 | static int |
651 | int inline_size |
419 | fd_valid (int fd) |
652 | fd_valid (int fd) |
420 | { |
653 | { |
421 | #ifdef WIN32 |
654 | #ifdef _WIN32 |
422 | return !!win32_get_osfhandle (fd); |
655 | return _get_osfhandle (fd) != -1; |
423 | #else |
656 | #else |
424 | return fcntl (fd, F_GETFD) != -1; |
657 | return fcntl (fd, F_GETFD) != -1; |
425 | #endif |
658 | #endif |
426 | } |
659 | } |
427 | |
660 | |
428 | /* called on EBADF to verify fds */ |
661 | /* called on EBADF to verify fds */ |
429 | static void |
662 | static void noinline |
430 | fd_ebadf (EV_P) |
663 | fd_ebadf (EV_P) |
431 | { |
664 | { |
432 | int fd; |
665 | int fd; |
433 | |
666 | |
434 | for (fd = 0; fd < anfdmax; ++fd) |
667 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
436 | if (!fd_valid (fd) == -1 && errno == EBADF) |
669 | if (!fd_valid (fd) == -1 && errno == EBADF) |
437 | fd_kill (EV_A_ fd); |
670 | fd_kill (EV_A_ fd); |
438 | } |
671 | } |
439 | |
672 | |
440 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
673 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
441 | static void |
674 | static void noinline |
442 | fd_enomem (EV_P) |
675 | fd_enomem (EV_P) |
443 | { |
676 | { |
444 | int fd; |
677 | int fd; |
445 | |
678 | |
446 | for (fd = anfdmax; fd--; ) |
679 | for (fd = anfdmax; fd--; ) |
… | |
… | |
449 | fd_kill (EV_A_ fd); |
682 | fd_kill (EV_A_ fd); |
450 | return; |
683 | return; |
451 | } |
684 | } |
452 | } |
685 | } |
453 | |
686 | |
454 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
687 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
455 | static void |
688 | static void noinline |
456 | fd_rearm_all (EV_P) |
689 | fd_rearm_all (EV_P) |
457 | { |
690 | { |
458 | int fd; |
691 | int fd; |
459 | |
692 | |
460 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
461 | for (fd = 0; fd < anfdmax; ++fd) |
693 | for (fd = 0; fd < anfdmax; ++fd) |
462 | if (anfds [fd].events) |
694 | if (anfds [fd].events) |
463 | { |
695 | { |
464 | anfds [fd].events = 0; |
696 | anfds [fd].events = 0; |
465 | fd_change (EV_A_ fd); |
697 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
466 | } |
698 | } |
467 | } |
699 | } |
468 | |
700 | |
469 | /*****************************************************************************/ |
701 | /*****************************************************************************/ |
470 | |
702 | |
471 | static void |
703 | void inline_speed |
472 | upheap (WT *heap, int k) |
704 | upheap (WT *heap, int k) |
473 | { |
705 | { |
474 | WT w = heap [k]; |
706 | WT w = heap [k]; |
475 | |
707 | |
476 | while (k && heap [k >> 1]->at > w->at) |
708 | while (k) |
477 | { |
709 | { |
|
|
710 | int p = (k - 1) >> 1; |
|
|
711 | |
|
|
712 | if (heap [p]->at <= w->at) |
|
|
713 | break; |
|
|
714 | |
478 | heap [k] = heap [k >> 1]; |
715 | heap [k] = heap [p]; |
479 | ((W)heap [k])->active = k + 1; |
716 | ((W)heap [k])->active = k + 1; |
480 | k >>= 1; |
717 | k = p; |
481 | } |
718 | } |
482 | |
719 | |
483 | heap [k] = w; |
720 | heap [k] = w; |
484 | ((W)heap [k])->active = k + 1; |
721 | ((W)heap [k])->active = k + 1; |
485 | |
|
|
486 | } |
722 | } |
487 | |
723 | |
488 | static void |
724 | void inline_speed |
489 | downheap (WT *heap, int N, int k) |
725 | downheap (WT *heap, int N, int k) |
490 | { |
726 | { |
491 | WT w = heap [k]; |
727 | WT w = heap [k]; |
492 | |
728 | |
493 | while (k < (N >> 1)) |
729 | for (;;) |
494 | { |
730 | { |
495 | int j = k << 1; |
731 | int c = (k << 1) + 1; |
496 | |
732 | |
497 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
733 | if (c >= N) |
498 | ++j; |
|
|
499 | |
|
|
500 | if (w->at <= heap [j]->at) |
|
|
501 | break; |
734 | break; |
502 | |
735 | |
|
|
736 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
737 | ? 1 : 0; |
|
|
738 | |
|
|
739 | if (w->at <= heap [c]->at) |
|
|
740 | break; |
|
|
741 | |
503 | heap [k] = heap [j]; |
742 | heap [k] = heap [c]; |
504 | ((W)heap [k])->active = k + 1; |
743 | ((W)heap [k])->active = k + 1; |
|
|
744 | |
505 | k = j; |
745 | k = c; |
506 | } |
746 | } |
507 | |
747 | |
508 | heap [k] = w; |
748 | heap [k] = w; |
509 | ((W)heap [k])->active = k + 1; |
749 | ((W)heap [k])->active = k + 1; |
|
|
750 | } |
|
|
751 | |
|
|
752 | void inline_size |
|
|
753 | adjustheap (WT *heap, int N, int k) |
|
|
754 | { |
|
|
755 | upheap (heap, k); |
|
|
756 | downheap (heap, N, k); |
510 | } |
757 | } |
511 | |
758 | |
512 | /*****************************************************************************/ |
759 | /*****************************************************************************/ |
513 | |
760 | |
514 | typedef struct |
761 | typedef struct |
… | |
… | |
520 | static ANSIG *signals; |
767 | static ANSIG *signals; |
521 | static int signalmax; |
768 | static int signalmax; |
522 | |
769 | |
523 | static int sigpipe [2]; |
770 | static int sigpipe [2]; |
524 | static sig_atomic_t volatile gotsig; |
771 | static sig_atomic_t volatile gotsig; |
525 | static struct ev_io sigev; |
772 | static ev_io sigev; |
526 | |
773 | |
527 | static void |
774 | void inline_size |
528 | signals_init (ANSIG *base, int count) |
775 | signals_init (ANSIG *base, int count) |
529 | { |
776 | { |
530 | while (count--) |
777 | while (count--) |
531 | { |
778 | { |
532 | base->head = 0; |
779 | base->head = 0; |
… | |
… | |
537 | } |
784 | } |
538 | |
785 | |
539 | static void |
786 | static void |
540 | sighandler (int signum) |
787 | sighandler (int signum) |
541 | { |
788 | { |
542 | #if WIN32 |
789 | #if _WIN32 |
543 | signal (signum, sighandler); |
790 | signal (signum, sighandler); |
544 | #endif |
791 | #endif |
545 | |
792 | |
546 | signals [signum - 1].gotsig = 1; |
793 | signals [signum - 1].gotsig = 1; |
547 | |
794 | |
… | |
… | |
552 | write (sigpipe [1], &signum, 1); |
799 | write (sigpipe [1], &signum, 1); |
553 | errno = old_errno; |
800 | errno = old_errno; |
554 | } |
801 | } |
555 | } |
802 | } |
556 | |
803 | |
|
|
804 | void noinline |
|
|
805 | ev_feed_signal_event (EV_P_ int signum) |
|
|
806 | { |
|
|
807 | WL w; |
|
|
808 | |
|
|
809 | #if EV_MULTIPLICITY |
|
|
810 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
811 | #endif |
|
|
812 | |
|
|
813 | --signum; |
|
|
814 | |
|
|
815 | if (signum < 0 || signum >= signalmax) |
|
|
816 | return; |
|
|
817 | |
|
|
818 | signals [signum].gotsig = 0; |
|
|
819 | |
|
|
820 | for (w = signals [signum].head; w; w = w->next) |
|
|
821 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
822 | } |
|
|
823 | |
557 | static void |
824 | static void |
558 | sigcb (EV_P_ struct ev_io *iow, int revents) |
825 | sigcb (EV_P_ ev_io *iow, int revents) |
559 | { |
826 | { |
560 | WL w; |
|
|
561 | int signum; |
827 | int signum; |
562 | |
828 | |
563 | read (sigpipe [0], &revents, 1); |
829 | read (sigpipe [0], &revents, 1); |
564 | gotsig = 0; |
830 | gotsig = 0; |
565 | |
831 | |
566 | for (signum = signalmax; signum--; ) |
832 | for (signum = signalmax; signum--; ) |
567 | if (signals [signum].gotsig) |
833 | if (signals [signum].gotsig) |
568 | { |
834 | ev_feed_signal_event (EV_A_ signum + 1); |
569 | signals [signum].gotsig = 0; |
|
|
570 | |
|
|
571 | for (w = signals [signum].head; w; w = w->next) |
|
|
572 | event (EV_A_ (W)w, EV_SIGNAL); |
|
|
573 | } |
|
|
574 | } |
835 | } |
575 | |
836 | |
576 | static void |
837 | void inline_speed |
|
|
838 | fd_intern (int fd) |
|
|
839 | { |
|
|
840 | #ifdef _WIN32 |
|
|
841 | int arg = 1; |
|
|
842 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
843 | #else |
|
|
844 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
845 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
846 | #endif |
|
|
847 | } |
|
|
848 | |
|
|
849 | static void noinline |
577 | siginit (EV_P) |
850 | siginit (EV_P) |
578 | { |
851 | { |
579 | #ifndef WIN32 |
852 | fd_intern (sigpipe [0]); |
580 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
853 | fd_intern (sigpipe [1]); |
581 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
582 | |
|
|
583 | /* rather than sort out wether we really need nb, set it */ |
|
|
584 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
585 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
586 | #endif |
|
|
587 | |
854 | |
588 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
855 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
589 | ev_io_start (EV_A_ &sigev); |
856 | ev_io_start (EV_A_ &sigev); |
590 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
857 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
591 | } |
858 | } |
592 | |
859 | |
593 | /*****************************************************************************/ |
860 | /*****************************************************************************/ |
594 | |
861 | |
595 | static struct ev_child *childs [PID_HASHSIZE]; |
862 | static WL childs [EV_PID_HASHSIZE]; |
596 | |
863 | |
597 | #ifndef WIN32 |
864 | #ifndef _WIN32 |
598 | |
865 | |
599 | static struct ev_signal childev; |
866 | static ev_signal childev; |
|
|
867 | |
|
|
868 | void inline_speed |
|
|
869 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
870 | { |
|
|
871 | ev_child *w; |
|
|
872 | |
|
|
873 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
874 | if (w->pid == pid || !w->pid) |
|
|
875 | { |
|
|
876 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
|
|
877 | w->rpid = pid; |
|
|
878 | w->rstatus = status; |
|
|
879 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
880 | } |
|
|
881 | } |
600 | |
882 | |
601 | #ifndef WCONTINUED |
883 | #ifndef WCONTINUED |
602 | # define WCONTINUED 0 |
884 | # define WCONTINUED 0 |
603 | #endif |
885 | #endif |
604 | |
886 | |
605 | static void |
887 | static void |
606 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
607 | { |
|
|
608 | struct ev_child *w; |
|
|
609 | |
|
|
610 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
611 | if (w->pid == pid || !w->pid) |
|
|
612 | { |
|
|
613 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
614 | w->rpid = pid; |
|
|
615 | w->rstatus = status; |
|
|
616 | event (EV_A_ (W)w, EV_CHILD); |
|
|
617 | } |
|
|
618 | } |
|
|
619 | |
|
|
620 | static void |
|
|
621 | childcb (EV_P_ struct ev_signal *sw, int revents) |
888 | childcb (EV_P_ ev_signal *sw, int revents) |
622 | { |
889 | { |
623 | int pid, status; |
890 | int pid, status; |
624 | |
891 | |
|
|
892 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
625 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
893 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
626 | { |
894 | if (!WCONTINUED |
|
|
895 | || errno != EINVAL |
|
|
896 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
897 | return; |
|
|
898 | |
627 | /* make sure we are called again until all childs have been reaped */ |
899 | /* make sure we are called again until all childs have been reaped */ |
|
|
900 | /* we need to do it this way so that the callback gets called before we continue */ |
628 | event (EV_A_ (W)sw, EV_SIGNAL); |
901 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
629 | |
902 | |
630 | child_reap (EV_A_ sw, pid, pid, status); |
903 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
904 | if (EV_PID_HASHSIZE > 1) |
631 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
905 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
632 | } |
|
|
633 | } |
906 | } |
634 | |
907 | |
635 | #endif |
908 | #endif |
636 | |
909 | |
637 | /*****************************************************************************/ |
910 | /*****************************************************************************/ |
638 | |
911 | |
|
|
912 | #if EV_USE_PORT |
|
|
913 | # include "ev_port.c" |
|
|
914 | #endif |
639 | #if EV_USE_KQUEUE |
915 | #if EV_USE_KQUEUE |
640 | # include "ev_kqueue.c" |
916 | # include "ev_kqueue.c" |
641 | #endif |
917 | #endif |
642 | #if EV_USE_EPOLL |
918 | #if EV_USE_EPOLL |
643 | # include "ev_epoll.c" |
919 | # include "ev_epoll.c" |
… | |
… | |
660 | { |
936 | { |
661 | return EV_VERSION_MINOR; |
937 | return EV_VERSION_MINOR; |
662 | } |
938 | } |
663 | |
939 | |
664 | /* return true if we are running with elevated privileges and should ignore env variables */ |
940 | /* return true if we are running with elevated privileges and should ignore env variables */ |
665 | static int |
941 | int inline_size |
666 | enable_secure (void) |
942 | enable_secure (void) |
667 | { |
943 | { |
668 | #ifdef WIN32 |
944 | #ifdef _WIN32 |
669 | return 0; |
945 | return 0; |
670 | #else |
946 | #else |
671 | return getuid () != geteuid () |
947 | return getuid () != geteuid () |
672 | || getgid () != getegid (); |
948 | || getgid () != getegid (); |
673 | #endif |
949 | #endif |
674 | } |
950 | } |
675 | |
951 | |
676 | int |
952 | unsigned int |
677 | ev_method (EV_P) |
953 | ev_supported_backends (void) |
678 | { |
954 | { |
679 | return method; |
955 | unsigned int flags = 0; |
680 | } |
|
|
681 | |
956 | |
682 | static void |
957 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
683 | loop_init (EV_P_ int methods) |
958 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
959 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
960 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
961 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
962 | |
|
|
963 | return flags; |
|
|
964 | } |
|
|
965 | |
|
|
966 | unsigned int |
|
|
967 | ev_recommended_backends (void) |
684 | { |
968 | { |
685 | if (!method) |
969 | unsigned int flags = ev_supported_backends (); |
|
|
970 | |
|
|
971 | #ifndef __NetBSD__ |
|
|
972 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
973 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
974 | flags &= ~EVBACKEND_KQUEUE; |
|
|
975 | #endif |
|
|
976 | #ifdef __APPLE__ |
|
|
977 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
978 | flags &= ~EVBACKEND_POLL; |
|
|
979 | #endif |
|
|
980 | |
|
|
981 | return flags; |
|
|
982 | } |
|
|
983 | |
|
|
984 | unsigned int |
|
|
985 | ev_embeddable_backends (void) |
|
|
986 | { |
|
|
987 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
988 | |
|
|
989 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
990 | /* please fix it and tell me how to detect the fix */ |
|
|
991 | flags &= ~EVBACKEND_EPOLL; |
|
|
992 | |
|
|
993 | return flags; |
|
|
994 | } |
|
|
995 | |
|
|
996 | unsigned int |
|
|
997 | ev_backend (EV_P) |
|
|
998 | { |
|
|
999 | return backend; |
|
|
1000 | } |
|
|
1001 | |
|
|
1002 | unsigned int |
|
|
1003 | ev_loop_count (EV_P) |
|
|
1004 | { |
|
|
1005 | return loop_count; |
|
|
1006 | } |
|
|
1007 | |
|
|
1008 | void |
|
|
1009 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1010 | { |
|
|
1011 | io_blocktime = interval; |
|
|
1012 | } |
|
|
1013 | |
|
|
1014 | void |
|
|
1015 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1016 | { |
|
|
1017 | timeout_blocktime = interval; |
|
|
1018 | } |
|
|
1019 | |
|
|
1020 | static void noinline |
|
|
1021 | loop_init (EV_P_ unsigned int flags) |
|
|
1022 | { |
|
|
1023 | if (!backend) |
686 | { |
1024 | { |
687 | #if EV_USE_MONOTONIC |
1025 | #if EV_USE_MONOTONIC |
688 | { |
1026 | { |
689 | struct timespec ts; |
1027 | struct timespec ts; |
690 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1028 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
691 | have_monotonic = 1; |
1029 | have_monotonic = 1; |
692 | } |
1030 | } |
693 | #endif |
1031 | #endif |
694 | |
1032 | |
695 | rt_now = ev_time (); |
1033 | ev_rt_now = ev_time (); |
696 | mn_now = get_clock (); |
1034 | mn_now = get_clock (); |
697 | now_floor = mn_now; |
1035 | now_floor = mn_now; |
698 | rtmn_diff = rt_now - mn_now; |
1036 | rtmn_diff = ev_rt_now - mn_now; |
699 | |
1037 | |
700 | if (methods == EVMETHOD_AUTO) |
1038 | io_blocktime = 0.; |
701 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1039 | timeout_blocktime = 0.; |
|
|
1040 | |
|
|
1041 | /* pid check not overridable via env */ |
|
|
1042 | #ifndef _WIN32 |
|
|
1043 | if (flags & EVFLAG_FORKCHECK) |
|
|
1044 | curpid = getpid (); |
|
|
1045 | #endif |
|
|
1046 | |
|
|
1047 | if (!(flags & EVFLAG_NOENV) |
|
|
1048 | && !enable_secure () |
|
|
1049 | && getenv ("LIBEV_FLAGS")) |
702 | methods = atoi (getenv ("LIBEV_METHODS")); |
1050 | flags = atoi (getenv ("LIBEV_FLAGS")); |
703 | else |
|
|
704 | methods = EVMETHOD_ANY; |
|
|
705 | |
1051 | |
706 | method = 0; |
1052 | if (!(flags & 0x0000ffffUL)) |
|
|
1053 | flags |= ev_recommended_backends (); |
|
|
1054 | |
|
|
1055 | backend = 0; |
|
|
1056 | backend_fd = -1; |
707 | #if EV_USE_WIN32 |
1057 | #if EV_USE_INOTIFY |
708 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
1058 | fs_fd = -2; |
|
|
1059 | #endif |
|
|
1060 | |
|
|
1061 | #if EV_USE_PORT |
|
|
1062 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
709 | #endif |
1063 | #endif |
710 | #if EV_USE_KQUEUE |
1064 | #if EV_USE_KQUEUE |
711 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
1065 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
712 | #endif |
1066 | #endif |
713 | #if EV_USE_EPOLL |
1067 | #if EV_USE_EPOLL |
714 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
1068 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
715 | #endif |
1069 | #endif |
716 | #if EV_USE_POLL |
1070 | #if EV_USE_POLL |
717 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
1071 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
718 | #endif |
1072 | #endif |
719 | #if EV_USE_SELECT |
1073 | #if EV_USE_SELECT |
720 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
1074 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
721 | #endif |
1075 | #endif |
722 | |
1076 | |
723 | ev_watcher_init (&sigev, sigcb); |
1077 | ev_init (&sigev, sigcb); |
724 | ev_set_priority (&sigev, EV_MAXPRI); |
1078 | ev_set_priority (&sigev, EV_MAXPRI); |
725 | } |
1079 | } |
726 | } |
1080 | } |
727 | |
1081 | |
728 | void |
1082 | static void noinline |
729 | loop_destroy (EV_P) |
1083 | loop_destroy (EV_P) |
730 | { |
1084 | { |
731 | int i; |
1085 | int i; |
732 | |
1086 | |
733 | #if EV_USE_WIN32 |
1087 | #if EV_USE_INOTIFY |
734 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
1088 | if (fs_fd >= 0) |
|
|
1089 | close (fs_fd); |
|
|
1090 | #endif |
|
|
1091 | |
|
|
1092 | if (backend_fd >= 0) |
|
|
1093 | close (backend_fd); |
|
|
1094 | |
|
|
1095 | #if EV_USE_PORT |
|
|
1096 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
735 | #endif |
1097 | #endif |
736 | #if EV_USE_KQUEUE |
1098 | #if EV_USE_KQUEUE |
737 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1099 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
738 | #endif |
1100 | #endif |
739 | #if EV_USE_EPOLL |
1101 | #if EV_USE_EPOLL |
740 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1102 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
741 | #endif |
1103 | #endif |
742 | #if EV_USE_POLL |
1104 | #if EV_USE_POLL |
743 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1105 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
744 | #endif |
1106 | #endif |
745 | #if EV_USE_SELECT |
1107 | #if EV_USE_SELECT |
746 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1108 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
747 | #endif |
1109 | #endif |
748 | |
1110 | |
749 | for (i = NUMPRI; i--; ) |
1111 | for (i = NUMPRI; i--; ) |
|
|
1112 | { |
750 | array_free (pending, [i]); |
1113 | array_free (pending, [i]); |
|
|
1114 | #if EV_IDLE_ENABLE |
|
|
1115 | array_free (idle, [i]); |
|
|
1116 | #endif |
|
|
1117 | } |
|
|
1118 | |
|
|
1119 | ev_free (anfds); anfdmax = 0; |
751 | |
1120 | |
752 | /* have to use the microsoft-never-gets-it-right macro */ |
1121 | /* have to use the microsoft-never-gets-it-right macro */ |
753 | array_free_microshit (fdchange); |
1122 | array_free (fdchange, EMPTY); |
754 | array_free_microshit (timer); |
1123 | array_free (timer, EMPTY); |
755 | array_free_microshit (periodic); |
1124 | #if EV_PERIODIC_ENABLE |
756 | array_free_microshit (idle); |
1125 | array_free (periodic, EMPTY); |
757 | array_free_microshit (prepare); |
1126 | #endif |
758 | array_free_microshit (check); |
1127 | #if EV_FORK_ENABLE |
|
|
1128 | array_free (fork, EMPTY); |
|
|
1129 | #endif |
|
|
1130 | array_free (prepare, EMPTY); |
|
|
1131 | array_free (check, EMPTY); |
759 | |
1132 | |
760 | method = 0; |
1133 | backend = 0; |
761 | } |
1134 | } |
762 | |
1135 | |
763 | static void |
1136 | void inline_size infy_fork (EV_P); |
|
|
1137 | |
|
|
1138 | void inline_size |
764 | loop_fork (EV_P) |
1139 | loop_fork (EV_P) |
765 | { |
1140 | { |
|
|
1141 | #if EV_USE_PORT |
|
|
1142 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1143 | #endif |
|
|
1144 | #if EV_USE_KQUEUE |
|
|
1145 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1146 | #endif |
766 | #if EV_USE_EPOLL |
1147 | #if EV_USE_EPOLL |
767 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1148 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
768 | #endif |
1149 | #endif |
769 | #if EV_USE_KQUEUE |
1150 | #if EV_USE_INOTIFY |
770 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1151 | infy_fork (EV_A); |
771 | #endif |
1152 | #endif |
772 | |
1153 | |
773 | if (ev_is_active (&sigev)) |
1154 | if (ev_is_active (&sigev)) |
774 | { |
1155 | { |
775 | /* default loop */ |
1156 | /* default loop */ |
… | |
… | |
788 | postfork = 0; |
1169 | postfork = 0; |
789 | } |
1170 | } |
790 | |
1171 | |
791 | #if EV_MULTIPLICITY |
1172 | #if EV_MULTIPLICITY |
792 | struct ev_loop * |
1173 | struct ev_loop * |
793 | ev_loop_new (int methods) |
1174 | ev_loop_new (unsigned int flags) |
794 | { |
1175 | { |
795 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1176 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
796 | |
1177 | |
797 | memset (loop, 0, sizeof (struct ev_loop)); |
1178 | memset (loop, 0, sizeof (struct ev_loop)); |
798 | |
1179 | |
799 | loop_init (EV_A_ methods); |
1180 | loop_init (EV_A_ flags); |
800 | |
1181 | |
801 | if (ev_method (EV_A)) |
1182 | if (ev_backend (EV_A)) |
802 | return loop; |
1183 | return loop; |
803 | |
1184 | |
804 | return 0; |
1185 | return 0; |
805 | } |
1186 | } |
806 | |
1187 | |
… | |
… | |
818 | } |
1199 | } |
819 | |
1200 | |
820 | #endif |
1201 | #endif |
821 | |
1202 | |
822 | #if EV_MULTIPLICITY |
1203 | #if EV_MULTIPLICITY |
823 | struct ev_loop default_loop_struct; |
|
|
824 | static struct ev_loop *default_loop; |
|
|
825 | |
|
|
826 | struct ev_loop * |
1204 | struct ev_loop * |
|
|
1205 | ev_default_loop_init (unsigned int flags) |
827 | #else |
1206 | #else |
828 | static int default_loop; |
|
|
829 | |
|
|
830 | int |
1207 | int |
|
|
1208 | ev_default_loop (unsigned int flags) |
831 | #endif |
1209 | #endif |
832 | ev_default_loop (int methods) |
|
|
833 | { |
1210 | { |
834 | if (sigpipe [0] == sigpipe [1]) |
1211 | if (sigpipe [0] == sigpipe [1]) |
835 | if (pipe (sigpipe)) |
1212 | if (pipe (sigpipe)) |
836 | return 0; |
1213 | return 0; |
837 | |
1214 | |
838 | if (!default_loop) |
1215 | if (!ev_default_loop_ptr) |
839 | { |
1216 | { |
840 | #if EV_MULTIPLICITY |
1217 | #if EV_MULTIPLICITY |
841 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1218 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
842 | #else |
1219 | #else |
843 | default_loop = 1; |
1220 | ev_default_loop_ptr = 1; |
844 | #endif |
1221 | #endif |
845 | |
1222 | |
846 | loop_init (EV_A_ methods); |
1223 | loop_init (EV_A_ flags); |
847 | |
1224 | |
848 | if (ev_method (EV_A)) |
1225 | if (ev_backend (EV_A)) |
849 | { |
1226 | { |
850 | siginit (EV_A); |
1227 | siginit (EV_A); |
851 | |
1228 | |
852 | #ifndef WIN32 |
1229 | #ifndef _WIN32 |
853 | ev_signal_init (&childev, childcb, SIGCHLD); |
1230 | ev_signal_init (&childev, childcb, SIGCHLD); |
854 | ev_set_priority (&childev, EV_MAXPRI); |
1231 | ev_set_priority (&childev, EV_MAXPRI); |
855 | ev_signal_start (EV_A_ &childev); |
1232 | ev_signal_start (EV_A_ &childev); |
856 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1233 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
857 | #endif |
1234 | #endif |
858 | } |
1235 | } |
859 | else |
1236 | else |
860 | default_loop = 0; |
1237 | ev_default_loop_ptr = 0; |
861 | } |
1238 | } |
862 | |
1239 | |
863 | return default_loop; |
1240 | return ev_default_loop_ptr; |
864 | } |
1241 | } |
865 | |
1242 | |
866 | void |
1243 | void |
867 | ev_default_destroy (void) |
1244 | ev_default_destroy (void) |
868 | { |
1245 | { |
869 | #if EV_MULTIPLICITY |
1246 | #if EV_MULTIPLICITY |
870 | struct ev_loop *loop = default_loop; |
1247 | struct ev_loop *loop = ev_default_loop_ptr; |
871 | #endif |
1248 | #endif |
872 | |
1249 | |
873 | #ifndef WIN32 |
1250 | #ifndef _WIN32 |
874 | ev_ref (EV_A); /* child watcher */ |
1251 | ev_ref (EV_A); /* child watcher */ |
875 | ev_signal_stop (EV_A_ &childev); |
1252 | ev_signal_stop (EV_A_ &childev); |
876 | #endif |
1253 | #endif |
877 | |
1254 | |
878 | ev_ref (EV_A); /* signal watcher */ |
1255 | ev_ref (EV_A); /* signal watcher */ |
… | |
… | |
886 | |
1263 | |
887 | void |
1264 | void |
888 | ev_default_fork (void) |
1265 | ev_default_fork (void) |
889 | { |
1266 | { |
890 | #if EV_MULTIPLICITY |
1267 | #if EV_MULTIPLICITY |
891 | struct ev_loop *loop = default_loop; |
1268 | struct ev_loop *loop = ev_default_loop_ptr; |
892 | #endif |
1269 | #endif |
893 | |
1270 | |
894 | if (method) |
1271 | if (backend) |
895 | postfork = 1; |
1272 | postfork = 1; |
896 | } |
1273 | } |
897 | |
1274 | |
898 | /*****************************************************************************/ |
1275 | /*****************************************************************************/ |
899 | |
1276 | |
900 | static void |
1277 | void |
|
|
1278 | ev_invoke (EV_P_ void *w, int revents) |
|
|
1279 | { |
|
|
1280 | EV_CB_INVOKE ((W)w, revents); |
|
|
1281 | } |
|
|
1282 | |
|
|
1283 | void inline_speed |
901 | call_pending (EV_P) |
1284 | call_pending (EV_P) |
902 | { |
1285 | { |
903 | int pri; |
1286 | int pri; |
904 | |
1287 | |
905 | for (pri = NUMPRI; pri--; ) |
1288 | for (pri = NUMPRI; pri--; ) |
906 | while (pendingcnt [pri]) |
1289 | while (pendingcnt [pri]) |
907 | { |
1290 | { |
908 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1291 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
909 | |
1292 | |
910 | if (p->w) |
1293 | if (expect_true (p->w)) |
911 | { |
1294 | { |
|
|
1295 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1296 | |
912 | p->w->pending = 0; |
1297 | p->w->pending = 0; |
913 | p->w->cb (EV_A_ p->w, p->events); |
1298 | EV_CB_INVOKE (p->w, p->events); |
914 | } |
1299 | } |
915 | } |
1300 | } |
916 | } |
1301 | } |
917 | |
1302 | |
918 | static void |
1303 | void inline_size |
919 | timers_reify (EV_P) |
1304 | timers_reify (EV_P) |
920 | { |
1305 | { |
921 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1306 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
922 | { |
1307 | { |
923 | struct ev_timer *w = timers [0]; |
1308 | ev_timer *w = (ev_timer *)timers [0]; |
924 | |
1309 | |
925 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1310 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
926 | |
1311 | |
927 | /* first reschedule or stop timer */ |
1312 | /* first reschedule or stop timer */ |
928 | if (w->repeat) |
1313 | if (w->repeat) |
929 | { |
1314 | { |
930 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1315 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1316 | |
931 | ((WT)w)->at = mn_now + w->repeat; |
1317 | ((WT)w)->at += w->repeat; |
|
|
1318 | if (((WT)w)->at < mn_now) |
|
|
1319 | ((WT)w)->at = mn_now; |
|
|
1320 | |
932 | downheap ((WT *)timers, timercnt, 0); |
1321 | downheap (timers, timercnt, 0); |
933 | } |
1322 | } |
934 | else |
1323 | else |
935 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1324 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
936 | |
1325 | |
937 | event (EV_A_ (W)w, EV_TIMEOUT); |
1326 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
938 | } |
1327 | } |
939 | } |
1328 | } |
940 | |
1329 | |
941 | static void |
1330 | #if EV_PERIODIC_ENABLE |
|
|
1331 | void inline_size |
942 | periodics_reify (EV_P) |
1332 | periodics_reify (EV_P) |
943 | { |
1333 | { |
944 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1334 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
945 | { |
1335 | { |
946 | struct ev_periodic *w = periodics [0]; |
1336 | ev_periodic *w = (ev_periodic *)periodics [0]; |
947 | |
1337 | |
948 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1338 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
949 | |
1339 | |
950 | /* first reschedule or stop timer */ |
1340 | /* first reschedule or stop timer */ |
951 | if (w->interval) |
1341 | if (w->reschedule_cb) |
952 | { |
1342 | { |
|
|
1343 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1344 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1345 | downheap (periodics, periodiccnt, 0); |
|
|
1346 | } |
|
|
1347 | else if (w->interval) |
|
|
1348 | { |
953 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1349 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1350 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
954 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1351 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
955 | downheap ((WT *)periodics, periodiccnt, 0); |
1352 | downheap (periodics, periodiccnt, 0); |
956 | } |
1353 | } |
957 | else |
1354 | else |
958 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1355 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
959 | |
1356 | |
960 | event (EV_A_ (W)w, EV_PERIODIC); |
1357 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
961 | } |
1358 | } |
962 | } |
1359 | } |
963 | |
1360 | |
964 | static void |
1361 | static void noinline |
965 | periodics_reschedule (EV_P) |
1362 | periodics_reschedule (EV_P) |
966 | { |
1363 | { |
967 | int i; |
1364 | int i; |
968 | |
1365 | |
969 | /* adjust periodics after time jump */ |
1366 | /* adjust periodics after time jump */ |
970 | for (i = 0; i < periodiccnt; ++i) |
1367 | for (i = 0; i < periodiccnt; ++i) |
971 | { |
1368 | { |
972 | struct ev_periodic *w = periodics [i]; |
1369 | ev_periodic *w = (ev_periodic *)periodics [i]; |
973 | |
1370 | |
|
|
1371 | if (w->reschedule_cb) |
|
|
1372 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
974 | if (w->interval) |
1373 | else if (w->interval) |
|
|
1374 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | /* now rebuild the heap */ |
|
|
1378 | for (i = periodiccnt >> 1; i--; ) |
|
|
1379 | downheap (periodics, periodiccnt, i); |
|
|
1380 | } |
|
|
1381 | #endif |
|
|
1382 | |
|
|
1383 | #if EV_IDLE_ENABLE |
|
|
1384 | void inline_size |
|
|
1385 | idle_reify (EV_P) |
|
|
1386 | { |
|
|
1387 | if (expect_false (idleall)) |
|
|
1388 | { |
|
|
1389 | int pri; |
|
|
1390 | |
|
|
1391 | for (pri = NUMPRI; pri--; ) |
975 | { |
1392 | { |
976 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1393 | if (pendingcnt [pri]) |
|
|
1394 | break; |
977 | |
1395 | |
978 | if (fabs (diff) >= 1e-4) |
1396 | if (idlecnt [pri]) |
979 | { |
1397 | { |
980 | ev_periodic_stop (EV_A_ w); |
1398 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
981 | ev_periodic_start (EV_A_ w); |
1399 | break; |
982 | |
|
|
983 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
984 | } |
1400 | } |
985 | } |
1401 | } |
986 | } |
1402 | } |
987 | } |
1403 | } |
|
|
1404 | #endif |
988 | |
1405 | |
989 | inline int |
1406 | void inline_speed |
990 | time_update_monotonic (EV_P) |
1407 | time_update (EV_P_ ev_tstamp max_block) |
991 | { |
|
|
992 | mn_now = get_clock (); |
|
|
993 | |
|
|
994 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
995 | { |
|
|
996 | rt_now = rtmn_diff + mn_now; |
|
|
997 | return 0; |
|
|
998 | } |
|
|
999 | else |
|
|
1000 | { |
|
|
1001 | now_floor = mn_now; |
|
|
1002 | rt_now = ev_time (); |
|
|
1003 | return 1; |
|
|
1004 | } |
|
|
1005 | } |
|
|
1006 | |
|
|
1007 | static void |
|
|
1008 | time_update (EV_P) |
|
|
1009 | { |
1408 | { |
1010 | int i; |
1409 | int i; |
1011 | |
1410 | |
1012 | #if EV_USE_MONOTONIC |
1411 | #if EV_USE_MONOTONIC |
1013 | if (expect_true (have_monotonic)) |
1412 | if (expect_true (have_monotonic)) |
1014 | { |
1413 | { |
1015 | if (time_update_monotonic (EV_A)) |
1414 | ev_tstamp odiff = rtmn_diff; |
|
|
1415 | |
|
|
1416 | mn_now = get_clock (); |
|
|
1417 | |
|
|
1418 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1419 | /* interpolate in the meantime */ |
|
|
1420 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1016 | { |
1421 | { |
1017 | ev_tstamp odiff = rtmn_diff; |
1422 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1423 | return; |
|
|
1424 | } |
1018 | |
1425 | |
|
|
1426 | now_floor = mn_now; |
|
|
1427 | ev_rt_now = ev_time (); |
|
|
1428 | |
1019 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1429 | /* loop a few times, before making important decisions. |
|
|
1430 | * on the choice of "4": one iteration isn't enough, |
|
|
1431 | * in case we get preempted during the calls to |
|
|
1432 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1433 | * to succeed in that case, though. and looping a few more times |
|
|
1434 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1435 | * in the unlikely event of having been preempted here. |
|
|
1436 | */ |
|
|
1437 | for (i = 4; --i; ) |
1020 | { |
1438 | { |
1021 | rtmn_diff = rt_now - mn_now; |
1439 | rtmn_diff = ev_rt_now - mn_now; |
1022 | |
1440 | |
1023 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1441 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1024 | return; /* all is well */ |
1442 | return; /* all is well */ |
1025 | |
1443 | |
1026 | rt_now = ev_time (); |
1444 | ev_rt_now = ev_time (); |
1027 | mn_now = get_clock (); |
1445 | mn_now = get_clock (); |
1028 | now_floor = mn_now; |
1446 | now_floor = mn_now; |
1029 | } |
1447 | } |
1030 | |
1448 | |
|
|
1449 | # if EV_PERIODIC_ENABLE |
|
|
1450 | periodics_reschedule (EV_A); |
|
|
1451 | # endif |
|
|
1452 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1453 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1454 | } |
|
|
1455 | else |
|
|
1456 | #endif |
|
|
1457 | { |
|
|
1458 | ev_rt_now = ev_time (); |
|
|
1459 | |
|
|
1460 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1461 | { |
|
|
1462 | #if EV_PERIODIC_ENABLE |
1031 | periodics_reschedule (EV_A); |
1463 | periodics_reschedule (EV_A); |
1032 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1464 | #endif |
1033 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1465 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1466 | for (i = 0; i < timercnt; ++i) |
|
|
1467 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1034 | } |
1468 | } |
1035 | } |
|
|
1036 | else |
|
|
1037 | #endif |
|
|
1038 | { |
|
|
1039 | rt_now = ev_time (); |
|
|
1040 | |
1469 | |
1041 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1042 | { |
|
|
1043 | periodics_reschedule (EV_A); |
|
|
1044 | |
|
|
1045 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1046 | for (i = 0; i < timercnt; ++i) |
|
|
1047 | ((WT)timers [i])->at += rt_now - mn_now; |
|
|
1048 | } |
|
|
1049 | |
|
|
1050 | mn_now = rt_now; |
1470 | mn_now = ev_rt_now; |
1051 | } |
1471 | } |
1052 | } |
1472 | } |
1053 | |
1473 | |
1054 | void |
1474 | void |
1055 | ev_ref (EV_P) |
1475 | ev_ref (EV_P) |
… | |
… | |
1066 | static int loop_done; |
1486 | static int loop_done; |
1067 | |
1487 | |
1068 | void |
1488 | void |
1069 | ev_loop (EV_P_ int flags) |
1489 | ev_loop (EV_P_ int flags) |
1070 | { |
1490 | { |
1071 | double block; |
|
|
1072 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1491 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1492 | ? EVUNLOOP_ONE |
|
|
1493 | : EVUNLOOP_CANCEL; |
|
|
1494 | |
|
|
1495 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1073 | |
1496 | |
1074 | do |
1497 | do |
1075 | { |
1498 | { |
|
|
1499 | #ifndef _WIN32 |
|
|
1500 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1501 | if (expect_false (getpid () != curpid)) |
|
|
1502 | { |
|
|
1503 | curpid = getpid (); |
|
|
1504 | postfork = 1; |
|
|
1505 | } |
|
|
1506 | #endif |
|
|
1507 | |
|
|
1508 | #if EV_FORK_ENABLE |
|
|
1509 | /* we might have forked, so queue fork handlers */ |
|
|
1510 | if (expect_false (postfork)) |
|
|
1511 | if (forkcnt) |
|
|
1512 | { |
|
|
1513 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1514 | call_pending (EV_A); |
|
|
1515 | } |
|
|
1516 | #endif |
|
|
1517 | |
1076 | /* queue check watchers (and execute them) */ |
1518 | /* queue prepare watchers (and execute them) */ |
1077 | if (expect_false (preparecnt)) |
1519 | if (expect_false (preparecnt)) |
1078 | { |
1520 | { |
1079 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1521 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1080 | call_pending (EV_A); |
1522 | call_pending (EV_A); |
1081 | } |
1523 | } |
1082 | |
1524 | |
|
|
1525 | if (expect_false (!activecnt)) |
|
|
1526 | break; |
|
|
1527 | |
1083 | /* we might have forked, so reify kernel state if necessary */ |
1528 | /* we might have forked, so reify kernel state if necessary */ |
1084 | if (expect_false (postfork)) |
1529 | if (expect_false (postfork)) |
1085 | loop_fork (EV_A); |
1530 | loop_fork (EV_A); |
1086 | |
1531 | |
1087 | /* update fd-related kernel structures */ |
1532 | /* update fd-related kernel structures */ |
1088 | fd_reify (EV_A); |
1533 | fd_reify (EV_A); |
1089 | |
1534 | |
1090 | /* calculate blocking time */ |
1535 | /* calculate blocking time */ |
|
|
1536 | { |
|
|
1537 | ev_tstamp waittime = 0.; |
|
|
1538 | ev_tstamp sleeptime = 0.; |
1091 | |
1539 | |
1092 | /* we only need this for !monotonic clockor timers, but as we basically |
1540 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1093 | always have timers, we just calculate it always */ |
|
|
1094 | #if EV_USE_MONOTONIC |
|
|
1095 | if (expect_true (have_monotonic)) |
|
|
1096 | time_update_monotonic (EV_A); |
|
|
1097 | else |
|
|
1098 | #endif |
|
|
1099 | { |
1541 | { |
1100 | rt_now = ev_time (); |
1542 | /* update time to cancel out callback processing overhead */ |
1101 | mn_now = rt_now; |
1543 | time_update (EV_A_ 1e100); |
1102 | } |
|
|
1103 | |
1544 | |
1104 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1105 | block = 0.; |
|
|
1106 | else |
|
|
1107 | { |
|
|
1108 | block = MAX_BLOCKTIME; |
1545 | waittime = MAX_BLOCKTIME; |
1109 | |
1546 | |
1110 | if (timercnt) |
1547 | if (timercnt) |
1111 | { |
1548 | { |
1112 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1549 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1113 | if (block > to) block = to; |
1550 | if (waittime > to) waittime = to; |
1114 | } |
1551 | } |
1115 | |
1552 | |
|
|
1553 | #if EV_PERIODIC_ENABLE |
1116 | if (periodiccnt) |
1554 | if (periodiccnt) |
1117 | { |
1555 | { |
1118 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1556 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1119 | if (block > to) block = to; |
1557 | if (waittime > to) waittime = to; |
1120 | } |
1558 | } |
|
|
1559 | #endif |
1121 | |
1560 | |
1122 | if (block < 0.) block = 0.; |
1561 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1562 | waittime = timeout_blocktime; |
|
|
1563 | |
|
|
1564 | sleeptime = waittime - backend_fudge; |
|
|
1565 | |
|
|
1566 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1567 | sleeptime = io_blocktime; |
|
|
1568 | |
|
|
1569 | if (sleeptime) |
|
|
1570 | { |
|
|
1571 | ev_sleep (sleeptime); |
|
|
1572 | waittime -= sleeptime; |
|
|
1573 | } |
1123 | } |
1574 | } |
1124 | |
1575 | |
1125 | method_poll (EV_A_ block); |
1576 | ++loop_count; |
|
|
1577 | backend_poll (EV_A_ waittime); |
1126 | |
1578 | |
1127 | /* update rt_now, do magic */ |
1579 | /* update ev_rt_now, do magic */ |
1128 | time_update (EV_A); |
1580 | time_update (EV_A_ waittime + sleeptime); |
|
|
1581 | } |
1129 | |
1582 | |
1130 | /* queue pending timers and reschedule them */ |
1583 | /* queue pending timers and reschedule them */ |
1131 | timers_reify (EV_A); /* relative timers called last */ |
1584 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1585 | #if EV_PERIODIC_ENABLE |
1132 | periodics_reify (EV_A); /* absolute timers called first */ |
1586 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1587 | #endif |
1133 | |
1588 | |
|
|
1589 | #if EV_IDLE_ENABLE |
1134 | /* queue idle watchers unless io or timers are pending */ |
1590 | /* queue idle watchers unless other events are pending */ |
1135 | if (!pendingcnt) |
1591 | idle_reify (EV_A); |
1136 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1592 | #endif |
1137 | |
1593 | |
1138 | /* queue check watchers, to be executed first */ |
1594 | /* queue check watchers, to be executed first */ |
1139 | if (checkcnt) |
1595 | if (expect_false (checkcnt)) |
1140 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1596 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1141 | |
1597 | |
1142 | call_pending (EV_A); |
1598 | call_pending (EV_A); |
|
|
1599 | |
1143 | } |
1600 | } |
1144 | while (activecnt && !loop_done); |
1601 | while (expect_true (activecnt && !loop_done)); |
1145 | |
1602 | |
1146 | if (loop_done != 2) |
1603 | if (loop_done == EVUNLOOP_ONE) |
1147 | loop_done = 0; |
1604 | loop_done = EVUNLOOP_CANCEL; |
1148 | } |
1605 | } |
1149 | |
1606 | |
1150 | void |
1607 | void |
1151 | ev_unloop (EV_P_ int how) |
1608 | ev_unloop (EV_P_ int how) |
1152 | { |
1609 | { |
1153 | loop_done = how; |
1610 | loop_done = how; |
1154 | } |
1611 | } |
1155 | |
1612 | |
1156 | /*****************************************************************************/ |
1613 | /*****************************************************************************/ |
1157 | |
1614 | |
1158 | inline void |
1615 | void inline_size |
1159 | wlist_add (WL *head, WL elem) |
1616 | wlist_add (WL *head, WL elem) |
1160 | { |
1617 | { |
1161 | elem->next = *head; |
1618 | elem->next = *head; |
1162 | *head = elem; |
1619 | *head = elem; |
1163 | } |
1620 | } |
1164 | |
1621 | |
1165 | inline void |
1622 | void inline_size |
1166 | wlist_del (WL *head, WL elem) |
1623 | wlist_del (WL *head, WL elem) |
1167 | { |
1624 | { |
1168 | while (*head) |
1625 | while (*head) |
1169 | { |
1626 | { |
1170 | if (*head == elem) |
1627 | if (*head == elem) |
… | |
… | |
1175 | |
1632 | |
1176 | head = &(*head)->next; |
1633 | head = &(*head)->next; |
1177 | } |
1634 | } |
1178 | } |
1635 | } |
1179 | |
1636 | |
1180 | inline void |
1637 | void inline_speed |
1181 | ev_clear_pending (EV_P_ W w) |
1638 | clear_pending (EV_P_ W w) |
1182 | { |
1639 | { |
1183 | if (w->pending) |
1640 | if (w->pending) |
1184 | { |
1641 | { |
1185 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1642 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1186 | w->pending = 0; |
1643 | w->pending = 0; |
1187 | } |
1644 | } |
1188 | } |
1645 | } |
1189 | |
1646 | |
1190 | inline void |
1647 | int |
|
|
1648 | ev_clear_pending (EV_P_ void *w) |
|
|
1649 | { |
|
|
1650 | W w_ = (W)w; |
|
|
1651 | int pending = w_->pending; |
|
|
1652 | |
|
|
1653 | if (expect_true (pending)) |
|
|
1654 | { |
|
|
1655 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1656 | w_->pending = 0; |
|
|
1657 | p->w = 0; |
|
|
1658 | return p->events; |
|
|
1659 | } |
|
|
1660 | else |
|
|
1661 | return 0; |
|
|
1662 | } |
|
|
1663 | |
|
|
1664 | void inline_size |
|
|
1665 | pri_adjust (EV_P_ W w) |
|
|
1666 | { |
|
|
1667 | int pri = w->priority; |
|
|
1668 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1669 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1670 | w->priority = pri; |
|
|
1671 | } |
|
|
1672 | |
|
|
1673 | void inline_speed |
1191 | ev_start (EV_P_ W w, int active) |
1674 | ev_start (EV_P_ W w, int active) |
1192 | { |
1675 | { |
1193 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1676 | pri_adjust (EV_A_ w); |
1194 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1195 | |
|
|
1196 | w->active = active; |
1677 | w->active = active; |
1197 | ev_ref (EV_A); |
1678 | ev_ref (EV_A); |
1198 | } |
1679 | } |
1199 | |
1680 | |
1200 | inline void |
1681 | void inline_size |
1201 | ev_stop (EV_P_ W w) |
1682 | ev_stop (EV_P_ W w) |
1202 | { |
1683 | { |
1203 | ev_unref (EV_A); |
1684 | ev_unref (EV_A); |
1204 | w->active = 0; |
1685 | w->active = 0; |
1205 | } |
1686 | } |
1206 | |
1687 | |
1207 | /*****************************************************************************/ |
1688 | /*****************************************************************************/ |
1208 | |
1689 | |
1209 | void |
1690 | void noinline |
1210 | ev_io_start (EV_P_ struct ev_io *w) |
1691 | ev_io_start (EV_P_ ev_io *w) |
1211 | { |
1692 | { |
1212 | int fd = w->fd; |
1693 | int fd = w->fd; |
1213 | |
1694 | |
1214 | if (ev_is_active (w)) |
1695 | if (expect_false (ev_is_active (w))) |
1215 | return; |
1696 | return; |
1216 | |
1697 | |
1217 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1698 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1218 | |
1699 | |
1219 | ev_start (EV_A_ (W)w, 1); |
1700 | ev_start (EV_A_ (W)w, 1); |
1220 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1701 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1221 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1702 | wlist_add (&anfds[fd].head, (WL)w); |
1222 | |
1703 | |
1223 | fd_change (EV_A_ fd); |
1704 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1705 | w->events &= ~EV_IOFDSET; |
1224 | } |
1706 | } |
1225 | |
1707 | |
1226 | void |
1708 | void noinline |
1227 | ev_io_stop (EV_P_ struct ev_io *w) |
1709 | ev_io_stop (EV_P_ ev_io *w) |
1228 | { |
1710 | { |
1229 | ev_clear_pending (EV_A_ (W)w); |
1711 | clear_pending (EV_A_ (W)w); |
1230 | if (!ev_is_active (w)) |
1712 | if (expect_false (!ev_is_active (w))) |
1231 | return; |
1713 | return; |
1232 | |
1714 | |
|
|
1715 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1716 | |
1233 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1717 | wlist_del (&anfds[w->fd].head, (WL)w); |
1234 | ev_stop (EV_A_ (W)w); |
1718 | ev_stop (EV_A_ (W)w); |
1235 | |
1719 | |
1236 | fd_change (EV_A_ w->fd); |
1720 | fd_change (EV_A_ w->fd, 1); |
1237 | } |
1721 | } |
1238 | |
1722 | |
1239 | void |
1723 | void noinline |
1240 | ev_timer_start (EV_P_ struct ev_timer *w) |
1724 | ev_timer_start (EV_P_ ev_timer *w) |
1241 | { |
1725 | { |
1242 | if (ev_is_active (w)) |
1726 | if (expect_false (ev_is_active (w))) |
1243 | return; |
1727 | return; |
1244 | |
1728 | |
1245 | ((WT)w)->at += mn_now; |
1729 | ((WT)w)->at += mn_now; |
1246 | |
1730 | |
1247 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1731 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1248 | |
1732 | |
1249 | ev_start (EV_A_ (W)w, ++timercnt); |
1733 | ev_start (EV_A_ (W)w, ++timercnt); |
1250 | array_needsize (timers, timermax, timercnt, (void)); |
1734 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1251 | timers [timercnt - 1] = w; |
1735 | timers [timercnt - 1] = (WT)w; |
1252 | upheap ((WT *)timers, timercnt - 1); |
1736 | upheap (timers, timercnt - 1); |
1253 | |
1737 | |
1254 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1738 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1255 | } |
1739 | } |
1256 | |
1740 | |
1257 | void |
1741 | void noinline |
1258 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1742 | ev_timer_stop (EV_P_ ev_timer *w) |
1259 | { |
1743 | { |
1260 | ev_clear_pending (EV_A_ (W)w); |
1744 | clear_pending (EV_A_ (W)w); |
1261 | if (!ev_is_active (w)) |
1745 | if (expect_false (!ev_is_active (w))) |
1262 | return; |
1746 | return; |
1263 | |
1747 | |
1264 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1748 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1265 | |
1749 | |
1266 | if (((W)w)->active < timercnt--) |
1750 | { |
|
|
1751 | int active = ((W)w)->active; |
|
|
1752 | |
|
|
1753 | if (expect_true (--active < --timercnt)) |
1267 | { |
1754 | { |
1268 | timers [((W)w)->active - 1] = timers [timercnt]; |
1755 | timers [active] = timers [timercnt]; |
1269 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1756 | adjustheap (timers, timercnt, active); |
1270 | } |
1757 | } |
|
|
1758 | } |
1271 | |
1759 | |
1272 | ((WT)w)->at = w->repeat; |
1760 | ((WT)w)->at -= mn_now; |
1273 | |
1761 | |
1274 | ev_stop (EV_A_ (W)w); |
1762 | ev_stop (EV_A_ (W)w); |
1275 | } |
1763 | } |
1276 | |
1764 | |
1277 | void |
1765 | void noinline |
1278 | ev_timer_again (EV_P_ struct ev_timer *w) |
1766 | ev_timer_again (EV_P_ ev_timer *w) |
1279 | { |
1767 | { |
1280 | if (ev_is_active (w)) |
1768 | if (ev_is_active (w)) |
1281 | { |
1769 | { |
1282 | if (w->repeat) |
1770 | if (w->repeat) |
1283 | { |
1771 | { |
1284 | ((WT)w)->at = mn_now + w->repeat; |
1772 | ((WT)w)->at = mn_now + w->repeat; |
1285 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1773 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1286 | } |
1774 | } |
1287 | else |
1775 | else |
1288 | ev_timer_stop (EV_A_ w); |
1776 | ev_timer_stop (EV_A_ w); |
1289 | } |
1777 | } |
1290 | else if (w->repeat) |
1778 | else if (w->repeat) |
|
|
1779 | { |
|
|
1780 | w->at = w->repeat; |
1291 | ev_timer_start (EV_A_ w); |
1781 | ev_timer_start (EV_A_ w); |
|
|
1782 | } |
1292 | } |
1783 | } |
1293 | |
1784 | |
1294 | void |
1785 | #if EV_PERIODIC_ENABLE |
|
|
1786 | void noinline |
1295 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1787 | ev_periodic_start (EV_P_ ev_periodic *w) |
1296 | { |
1788 | { |
1297 | if (ev_is_active (w)) |
1789 | if (expect_false (ev_is_active (w))) |
1298 | return; |
1790 | return; |
1299 | |
1791 | |
|
|
1792 | if (w->reschedule_cb) |
|
|
1793 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1794 | else if (w->interval) |
|
|
1795 | { |
1300 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1796 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1301 | |
|
|
1302 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1797 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1303 | if (w->interval) |
|
|
1304 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1798 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1799 | } |
|
|
1800 | else |
|
|
1801 | ((WT)w)->at = w->offset; |
1305 | |
1802 | |
1306 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1803 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1307 | array_needsize (periodics, periodicmax, periodiccnt, (void)); |
1804 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1308 | periodics [periodiccnt - 1] = w; |
1805 | periodics [periodiccnt - 1] = (WT)w; |
1309 | upheap ((WT *)periodics, periodiccnt - 1); |
1806 | upheap (periodics, periodiccnt - 1); |
1310 | |
1807 | |
1311 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1808 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1312 | } |
1809 | } |
1313 | |
1810 | |
1314 | void |
1811 | void noinline |
1315 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1812 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1316 | { |
1813 | { |
1317 | ev_clear_pending (EV_A_ (W)w); |
1814 | clear_pending (EV_A_ (W)w); |
1318 | if (!ev_is_active (w)) |
1815 | if (expect_false (!ev_is_active (w))) |
1319 | return; |
1816 | return; |
1320 | |
1817 | |
1321 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1818 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1322 | |
1819 | |
1323 | if (((W)w)->active < periodiccnt--) |
1820 | { |
|
|
1821 | int active = ((W)w)->active; |
|
|
1822 | |
|
|
1823 | if (expect_true (--active < --periodiccnt)) |
1324 | { |
1824 | { |
1325 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1825 | periodics [active] = periodics [periodiccnt]; |
1326 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1826 | adjustheap (periodics, periodiccnt, active); |
1327 | } |
1827 | } |
|
|
1828 | } |
1328 | |
1829 | |
1329 | ev_stop (EV_A_ (W)w); |
1830 | ev_stop (EV_A_ (W)w); |
1330 | } |
1831 | } |
1331 | |
1832 | |
1332 | void |
1833 | void noinline |
1333 | ev_idle_start (EV_P_ struct ev_idle *w) |
1834 | ev_periodic_again (EV_P_ ev_periodic *w) |
1334 | { |
1835 | { |
1335 | if (ev_is_active (w)) |
1836 | /* TODO: use adjustheap and recalculation */ |
1336 | return; |
|
|
1337 | |
|
|
1338 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1339 | array_needsize (idles, idlemax, idlecnt, (void)); |
|
|
1340 | idles [idlecnt - 1] = w; |
|
|
1341 | } |
|
|
1342 | |
|
|
1343 | void |
|
|
1344 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1345 | { |
|
|
1346 | ev_clear_pending (EV_A_ (W)w); |
|
|
1347 | if (ev_is_active (w)) |
|
|
1348 | return; |
|
|
1349 | |
|
|
1350 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1351 | ev_stop (EV_A_ (W)w); |
1837 | ev_periodic_stop (EV_A_ w); |
|
|
1838 | ev_periodic_start (EV_A_ w); |
1352 | } |
1839 | } |
1353 | |
1840 | #endif |
1354 | void |
|
|
1355 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1356 | { |
|
|
1357 | if (ev_is_active (w)) |
|
|
1358 | return; |
|
|
1359 | |
|
|
1360 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1361 | array_needsize (prepares, preparemax, preparecnt, (void)); |
|
|
1362 | prepares [preparecnt - 1] = w; |
|
|
1363 | } |
|
|
1364 | |
|
|
1365 | void |
|
|
1366 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1367 | { |
|
|
1368 | ev_clear_pending (EV_A_ (W)w); |
|
|
1369 | if (ev_is_active (w)) |
|
|
1370 | return; |
|
|
1371 | |
|
|
1372 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1373 | ev_stop (EV_A_ (W)w); |
|
|
1374 | } |
|
|
1375 | |
|
|
1376 | void |
|
|
1377 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1378 | { |
|
|
1379 | if (ev_is_active (w)) |
|
|
1380 | return; |
|
|
1381 | |
|
|
1382 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1383 | array_needsize (checks, checkmax, checkcnt, (void)); |
|
|
1384 | checks [checkcnt - 1] = w; |
|
|
1385 | } |
|
|
1386 | |
|
|
1387 | void |
|
|
1388 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1389 | { |
|
|
1390 | ev_clear_pending (EV_A_ (W)w); |
|
|
1391 | if (ev_is_active (w)) |
|
|
1392 | return; |
|
|
1393 | |
|
|
1394 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1395 | ev_stop (EV_A_ (W)w); |
|
|
1396 | } |
|
|
1397 | |
1841 | |
1398 | #ifndef SA_RESTART |
1842 | #ifndef SA_RESTART |
1399 | # define SA_RESTART 0 |
1843 | # define SA_RESTART 0 |
1400 | #endif |
1844 | #endif |
1401 | |
1845 | |
1402 | void |
1846 | void noinline |
1403 | ev_signal_start (EV_P_ struct ev_signal *w) |
1847 | ev_signal_start (EV_P_ ev_signal *w) |
1404 | { |
1848 | { |
1405 | #if EV_MULTIPLICITY |
1849 | #if EV_MULTIPLICITY |
1406 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1850 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1407 | #endif |
1851 | #endif |
1408 | if (ev_is_active (w)) |
1852 | if (expect_false (ev_is_active (w))) |
1409 | return; |
1853 | return; |
1410 | |
1854 | |
1411 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1855 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1412 | |
1856 | |
|
|
1857 | { |
|
|
1858 | #ifndef _WIN32 |
|
|
1859 | sigset_t full, prev; |
|
|
1860 | sigfillset (&full); |
|
|
1861 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1862 | #endif |
|
|
1863 | |
|
|
1864 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1865 | |
|
|
1866 | #ifndef _WIN32 |
|
|
1867 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1868 | #endif |
|
|
1869 | } |
|
|
1870 | |
1413 | ev_start (EV_A_ (W)w, 1); |
1871 | ev_start (EV_A_ (W)w, 1); |
1414 | array_needsize (signals, signalmax, w->signum, signals_init); |
|
|
1415 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1872 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1416 | |
1873 | |
1417 | if (!((WL)w)->next) |
1874 | if (!((WL)w)->next) |
1418 | { |
1875 | { |
1419 | #if WIN32 |
1876 | #if _WIN32 |
1420 | signal (w->signum, sighandler); |
1877 | signal (w->signum, sighandler); |
1421 | #else |
1878 | #else |
1422 | struct sigaction sa; |
1879 | struct sigaction sa; |
1423 | sa.sa_handler = sighandler; |
1880 | sa.sa_handler = sighandler; |
1424 | sigfillset (&sa.sa_mask); |
1881 | sigfillset (&sa.sa_mask); |
… | |
… | |
1426 | sigaction (w->signum, &sa, 0); |
1883 | sigaction (w->signum, &sa, 0); |
1427 | #endif |
1884 | #endif |
1428 | } |
1885 | } |
1429 | } |
1886 | } |
1430 | |
1887 | |
1431 | void |
1888 | void noinline |
1432 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1889 | ev_signal_stop (EV_P_ ev_signal *w) |
1433 | { |
1890 | { |
1434 | ev_clear_pending (EV_A_ (W)w); |
1891 | clear_pending (EV_A_ (W)w); |
1435 | if (!ev_is_active (w)) |
1892 | if (expect_false (!ev_is_active (w))) |
1436 | return; |
1893 | return; |
1437 | |
1894 | |
1438 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1895 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1439 | ev_stop (EV_A_ (W)w); |
1896 | ev_stop (EV_A_ (W)w); |
1440 | |
1897 | |
1441 | if (!signals [w->signum - 1].head) |
1898 | if (!signals [w->signum - 1].head) |
1442 | signal (w->signum, SIG_DFL); |
1899 | signal (w->signum, SIG_DFL); |
1443 | } |
1900 | } |
1444 | |
1901 | |
1445 | void |
1902 | void |
1446 | ev_child_start (EV_P_ struct ev_child *w) |
1903 | ev_child_start (EV_P_ ev_child *w) |
1447 | { |
1904 | { |
1448 | #if EV_MULTIPLICITY |
1905 | #if EV_MULTIPLICITY |
1449 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
1906 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1450 | #endif |
1907 | #endif |
1451 | if (ev_is_active (w)) |
1908 | if (expect_false (ev_is_active (w))) |
1452 | return; |
1909 | return; |
1453 | |
1910 | |
1454 | ev_start (EV_A_ (W)w, 1); |
1911 | ev_start (EV_A_ (W)w, 1); |
1455 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1912 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1456 | } |
1913 | } |
1457 | |
1914 | |
1458 | void |
1915 | void |
1459 | ev_child_stop (EV_P_ struct ev_child *w) |
1916 | ev_child_stop (EV_P_ ev_child *w) |
1460 | { |
1917 | { |
1461 | ev_clear_pending (EV_A_ (W)w); |
1918 | clear_pending (EV_A_ (W)w); |
1462 | if (ev_is_active (w)) |
1919 | if (expect_false (!ev_is_active (w))) |
1463 | return; |
1920 | return; |
1464 | |
1921 | |
1465 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1922 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1466 | ev_stop (EV_A_ (W)w); |
1923 | ev_stop (EV_A_ (W)w); |
1467 | } |
1924 | } |
1468 | |
1925 | |
|
|
1926 | #if EV_STAT_ENABLE |
|
|
1927 | |
|
|
1928 | # ifdef _WIN32 |
|
|
1929 | # undef lstat |
|
|
1930 | # define lstat(a,b) _stati64 (a,b) |
|
|
1931 | # endif |
|
|
1932 | |
|
|
1933 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1934 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1935 | |
|
|
1936 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1937 | |
|
|
1938 | #if EV_USE_INOTIFY |
|
|
1939 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1940 | |
|
|
1941 | static void noinline |
|
|
1942 | infy_add (EV_P_ ev_stat *w) |
|
|
1943 | { |
|
|
1944 | 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); |
|
|
1945 | |
|
|
1946 | if (w->wd < 0) |
|
|
1947 | { |
|
|
1948 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1949 | |
|
|
1950 | /* monitor some parent directory for speedup hints */ |
|
|
1951 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1952 | { |
|
|
1953 | char path [4096]; |
|
|
1954 | strcpy (path, w->path); |
|
|
1955 | |
|
|
1956 | do |
|
|
1957 | { |
|
|
1958 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1959 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1960 | |
|
|
1961 | char *pend = strrchr (path, '/'); |
|
|
1962 | |
|
|
1963 | if (!pend) |
|
|
1964 | break; /* whoops, no '/', complain to your admin */ |
|
|
1965 | |
|
|
1966 | *pend = 0; |
|
|
1967 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1968 | } |
|
|
1969 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1970 | } |
|
|
1971 | } |
|
|
1972 | else |
|
|
1973 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1974 | |
|
|
1975 | if (w->wd >= 0) |
|
|
1976 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1977 | } |
|
|
1978 | |
|
|
1979 | static void noinline |
|
|
1980 | infy_del (EV_P_ ev_stat *w) |
|
|
1981 | { |
|
|
1982 | int slot; |
|
|
1983 | int wd = w->wd; |
|
|
1984 | |
|
|
1985 | if (wd < 0) |
|
|
1986 | return; |
|
|
1987 | |
|
|
1988 | w->wd = -2; |
|
|
1989 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1990 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1991 | |
|
|
1992 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1993 | inotify_rm_watch (fs_fd, wd); |
|
|
1994 | } |
|
|
1995 | |
|
|
1996 | static void noinline |
|
|
1997 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1998 | { |
|
|
1999 | if (slot < 0) |
|
|
2000 | /* overflow, need to check for all hahs slots */ |
|
|
2001 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2002 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2003 | else |
|
|
2004 | { |
|
|
2005 | WL w_; |
|
|
2006 | |
|
|
2007 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2008 | { |
|
|
2009 | ev_stat *w = (ev_stat *)w_; |
|
|
2010 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2011 | |
|
|
2012 | if (w->wd == wd || wd == -1) |
|
|
2013 | { |
|
|
2014 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2015 | { |
|
|
2016 | w->wd = -1; |
|
|
2017 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2018 | } |
|
|
2019 | |
|
|
2020 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2021 | } |
|
|
2022 | } |
|
|
2023 | } |
|
|
2024 | } |
|
|
2025 | |
|
|
2026 | static void |
|
|
2027 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2028 | { |
|
|
2029 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2030 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2031 | int ofs; |
|
|
2032 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2033 | |
|
|
2034 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2035 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2036 | } |
|
|
2037 | |
|
|
2038 | void inline_size |
|
|
2039 | infy_init (EV_P) |
|
|
2040 | { |
|
|
2041 | if (fs_fd != -2) |
|
|
2042 | return; |
|
|
2043 | |
|
|
2044 | fs_fd = inotify_init (); |
|
|
2045 | |
|
|
2046 | if (fs_fd >= 0) |
|
|
2047 | { |
|
|
2048 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2049 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2050 | ev_io_start (EV_A_ &fs_w); |
|
|
2051 | } |
|
|
2052 | } |
|
|
2053 | |
|
|
2054 | void inline_size |
|
|
2055 | infy_fork (EV_P) |
|
|
2056 | { |
|
|
2057 | int slot; |
|
|
2058 | |
|
|
2059 | if (fs_fd < 0) |
|
|
2060 | return; |
|
|
2061 | |
|
|
2062 | close (fs_fd); |
|
|
2063 | fs_fd = inotify_init (); |
|
|
2064 | |
|
|
2065 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2066 | { |
|
|
2067 | WL w_ = fs_hash [slot].head; |
|
|
2068 | fs_hash [slot].head = 0; |
|
|
2069 | |
|
|
2070 | while (w_) |
|
|
2071 | { |
|
|
2072 | ev_stat *w = (ev_stat *)w_; |
|
|
2073 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2074 | |
|
|
2075 | w->wd = -1; |
|
|
2076 | |
|
|
2077 | if (fs_fd >= 0) |
|
|
2078 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2079 | else |
|
|
2080 | ev_timer_start (EV_A_ &w->timer); |
|
|
2081 | } |
|
|
2082 | |
|
|
2083 | } |
|
|
2084 | } |
|
|
2085 | |
|
|
2086 | #endif |
|
|
2087 | |
|
|
2088 | void |
|
|
2089 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2090 | { |
|
|
2091 | if (lstat (w->path, &w->attr) < 0) |
|
|
2092 | w->attr.st_nlink = 0; |
|
|
2093 | else if (!w->attr.st_nlink) |
|
|
2094 | w->attr.st_nlink = 1; |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | static void noinline |
|
|
2098 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2099 | { |
|
|
2100 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2101 | |
|
|
2102 | /* we copy this here each the time so that */ |
|
|
2103 | /* prev has the old value when the callback gets invoked */ |
|
|
2104 | w->prev = w->attr; |
|
|
2105 | ev_stat_stat (EV_A_ w); |
|
|
2106 | |
|
|
2107 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2108 | if ( |
|
|
2109 | w->prev.st_dev != w->attr.st_dev |
|
|
2110 | || w->prev.st_ino != w->attr.st_ino |
|
|
2111 | || w->prev.st_mode != w->attr.st_mode |
|
|
2112 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2113 | || w->prev.st_uid != w->attr.st_uid |
|
|
2114 | || w->prev.st_gid != w->attr.st_gid |
|
|
2115 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2116 | || w->prev.st_size != w->attr.st_size |
|
|
2117 | || w->prev.st_atime != w->attr.st_atime |
|
|
2118 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2119 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2120 | ) { |
|
|
2121 | #if EV_USE_INOTIFY |
|
|
2122 | infy_del (EV_A_ w); |
|
|
2123 | infy_add (EV_A_ w); |
|
|
2124 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2125 | #endif |
|
|
2126 | |
|
|
2127 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2128 | } |
|
|
2129 | } |
|
|
2130 | |
|
|
2131 | void |
|
|
2132 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2133 | { |
|
|
2134 | if (expect_false (ev_is_active (w))) |
|
|
2135 | return; |
|
|
2136 | |
|
|
2137 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2138 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2139 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2140 | |
|
|
2141 | ev_stat_stat (EV_A_ w); |
|
|
2142 | |
|
|
2143 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2144 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2145 | |
|
|
2146 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2147 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2148 | |
|
|
2149 | #if EV_USE_INOTIFY |
|
|
2150 | infy_init (EV_A); |
|
|
2151 | |
|
|
2152 | if (fs_fd >= 0) |
|
|
2153 | infy_add (EV_A_ w); |
|
|
2154 | else |
|
|
2155 | #endif |
|
|
2156 | ev_timer_start (EV_A_ &w->timer); |
|
|
2157 | |
|
|
2158 | ev_start (EV_A_ (W)w, 1); |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | void |
|
|
2162 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2163 | { |
|
|
2164 | clear_pending (EV_A_ (W)w); |
|
|
2165 | if (expect_false (!ev_is_active (w))) |
|
|
2166 | return; |
|
|
2167 | |
|
|
2168 | #if EV_USE_INOTIFY |
|
|
2169 | infy_del (EV_A_ w); |
|
|
2170 | #endif |
|
|
2171 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2172 | |
|
|
2173 | ev_stop (EV_A_ (W)w); |
|
|
2174 | } |
|
|
2175 | #endif |
|
|
2176 | |
|
|
2177 | #if EV_IDLE_ENABLE |
|
|
2178 | void |
|
|
2179 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2180 | { |
|
|
2181 | if (expect_false (ev_is_active (w))) |
|
|
2182 | return; |
|
|
2183 | |
|
|
2184 | pri_adjust (EV_A_ (W)w); |
|
|
2185 | |
|
|
2186 | { |
|
|
2187 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2188 | |
|
|
2189 | ++idleall; |
|
|
2190 | ev_start (EV_A_ (W)w, active); |
|
|
2191 | |
|
|
2192 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2193 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2194 | } |
|
|
2195 | } |
|
|
2196 | |
|
|
2197 | void |
|
|
2198 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2199 | { |
|
|
2200 | clear_pending (EV_A_ (W)w); |
|
|
2201 | if (expect_false (!ev_is_active (w))) |
|
|
2202 | return; |
|
|
2203 | |
|
|
2204 | { |
|
|
2205 | int active = ((W)w)->active; |
|
|
2206 | |
|
|
2207 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2208 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2209 | |
|
|
2210 | ev_stop (EV_A_ (W)w); |
|
|
2211 | --idleall; |
|
|
2212 | } |
|
|
2213 | } |
|
|
2214 | #endif |
|
|
2215 | |
|
|
2216 | void |
|
|
2217 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2218 | { |
|
|
2219 | if (expect_false (ev_is_active (w))) |
|
|
2220 | return; |
|
|
2221 | |
|
|
2222 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2223 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2224 | prepares [preparecnt - 1] = w; |
|
|
2225 | } |
|
|
2226 | |
|
|
2227 | void |
|
|
2228 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2229 | { |
|
|
2230 | clear_pending (EV_A_ (W)w); |
|
|
2231 | if (expect_false (!ev_is_active (w))) |
|
|
2232 | return; |
|
|
2233 | |
|
|
2234 | { |
|
|
2235 | int active = ((W)w)->active; |
|
|
2236 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2237 | ((W)prepares [active - 1])->active = active; |
|
|
2238 | } |
|
|
2239 | |
|
|
2240 | ev_stop (EV_A_ (W)w); |
|
|
2241 | } |
|
|
2242 | |
|
|
2243 | void |
|
|
2244 | ev_check_start (EV_P_ ev_check *w) |
|
|
2245 | { |
|
|
2246 | if (expect_false (ev_is_active (w))) |
|
|
2247 | return; |
|
|
2248 | |
|
|
2249 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2250 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2251 | checks [checkcnt - 1] = w; |
|
|
2252 | } |
|
|
2253 | |
|
|
2254 | void |
|
|
2255 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2256 | { |
|
|
2257 | clear_pending (EV_A_ (W)w); |
|
|
2258 | if (expect_false (!ev_is_active (w))) |
|
|
2259 | return; |
|
|
2260 | |
|
|
2261 | { |
|
|
2262 | int active = ((W)w)->active; |
|
|
2263 | checks [active - 1] = checks [--checkcnt]; |
|
|
2264 | ((W)checks [active - 1])->active = active; |
|
|
2265 | } |
|
|
2266 | |
|
|
2267 | ev_stop (EV_A_ (W)w); |
|
|
2268 | } |
|
|
2269 | |
|
|
2270 | #if EV_EMBED_ENABLE |
|
|
2271 | void noinline |
|
|
2272 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2273 | { |
|
|
2274 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2275 | } |
|
|
2276 | |
|
|
2277 | static void |
|
|
2278 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2279 | { |
|
|
2280 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2281 | |
|
|
2282 | if (ev_cb (w)) |
|
|
2283 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2284 | else |
|
|
2285 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2286 | } |
|
|
2287 | |
|
|
2288 | static void |
|
|
2289 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2290 | { |
|
|
2291 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2292 | |
|
|
2293 | { |
|
|
2294 | struct ev_loop *loop = w->other; |
|
|
2295 | |
|
|
2296 | while (fdchangecnt) |
|
|
2297 | { |
|
|
2298 | fd_reify (EV_A); |
|
|
2299 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2300 | } |
|
|
2301 | } |
|
|
2302 | } |
|
|
2303 | |
|
|
2304 | #if 0 |
|
|
2305 | static void |
|
|
2306 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2307 | { |
|
|
2308 | ev_idle_stop (EV_A_ idle); |
|
|
2309 | } |
|
|
2310 | #endif |
|
|
2311 | |
|
|
2312 | void |
|
|
2313 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2314 | { |
|
|
2315 | if (expect_false (ev_is_active (w))) |
|
|
2316 | return; |
|
|
2317 | |
|
|
2318 | { |
|
|
2319 | struct ev_loop *loop = w->other; |
|
|
2320 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2321 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2322 | } |
|
|
2323 | |
|
|
2324 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2325 | ev_io_start (EV_A_ &w->io); |
|
|
2326 | |
|
|
2327 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2328 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2329 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2330 | |
|
|
2331 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2332 | |
|
|
2333 | ev_start (EV_A_ (W)w, 1); |
|
|
2334 | } |
|
|
2335 | |
|
|
2336 | void |
|
|
2337 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2338 | { |
|
|
2339 | clear_pending (EV_A_ (W)w); |
|
|
2340 | if (expect_false (!ev_is_active (w))) |
|
|
2341 | return; |
|
|
2342 | |
|
|
2343 | ev_io_stop (EV_A_ &w->io); |
|
|
2344 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2345 | |
|
|
2346 | ev_stop (EV_A_ (W)w); |
|
|
2347 | } |
|
|
2348 | #endif |
|
|
2349 | |
|
|
2350 | #if EV_FORK_ENABLE |
|
|
2351 | void |
|
|
2352 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2353 | { |
|
|
2354 | if (expect_false (ev_is_active (w))) |
|
|
2355 | return; |
|
|
2356 | |
|
|
2357 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2358 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2359 | forks [forkcnt - 1] = w; |
|
|
2360 | } |
|
|
2361 | |
|
|
2362 | void |
|
|
2363 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2364 | { |
|
|
2365 | clear_pending (EV_A_ (W)w); |
|
|
2366 | if (expect_false (!ev_is_active (w))) |
|
|
2367 | return; |
|
|
2368 | |
|
|
2369 | { |
|
|
2370 | int active = ((W)w)->active; |
|
|
2371 | forks [active - 1] = forks [--forkcnt]; |
|
|
2372 | ((W)forks [active - 1])->active = active; |
|
|
2373 | } |
|
|
2374 | |
|
|
2375 | ev_stop (EV_A_ (W)w); |
|
|
2376 | } |
|
|
2377 | #endif |
|
|
2378 | |
1469 | /*****************************************************************************/ |
2379 | /*****************************************************************************/ |
1470 | |
2380 | |
1471 | struct ev_once |
2381 | struct ev_once |
1472 | { |
2382 | { |
1473 | struct ev_io io; |
2383 | ev_io io; |
1474 | struct ev_timer to; |
2384 | ev_timer to; |
1475 | void (*cb)(int revents, void *arg); |
2385 | void (*cb)(int revents, void *arg); |
1476 | void *arg; |
2386 | void *arg; |
1477 | }; |
2387 | }; |
1478 | |
2388 | |
1479 | static void |
2389 | static void |
… | |
… | |
1488 | |
2398 | |
1489 | cb (revents, arg); |
2399 | cb (revents, arg); |
1490 | } |
2400 | } |
1491 | |
2401 | |
1492 | static void |
2402 | static void |
1493 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2403 | once_cb_io (EV_P_ ev_io *w, int revents) |
1494 | { |
2404 | { |
1495 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2405 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1496 | } |
2406 | } |
1497 | |
2407 | |
1498 | static void |
2408 | static void |
1499 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2409 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1500 | { |
2410 | { |
1501 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2411 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1502 | } |
2412 | } |
1503 | |
2413 | |
1504 | void |
2414 | void |
1505 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2415 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1506 | { |
2416 | { |
1507 | struct ev_once *once = ev_malloc (sizeof (struct ev_once)); |
2417 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1508 | |
2418 | |
1509 | if (!once) |
2419 | if (expect_false (!once)) |
|
|
2420 | { |
1510 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2421 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1511 | else |
2422 | return; |
1512 | { |
2423 | } |
|
|
2424 | |
1513 | once->cb = cb; |
2425 | once->cb = cb; |
1514 | once->arg = arg; |
2426 | once->arg = arg; |
1515 | |
2427 | |
1516 | ev_watcher_init (&once->io, once_cb_io); |
2428 | ev_init (&once->io, once_cb_io); |
1517 | if (fd >= 0) |
2429 | if (fd >= 0) |
1518 | { |
2430 | { |
1519 | ev_io_set (&once->io, fd, events); |
2431 | ev_io_set (&once->io, fd, events); |
1520 | ev_io_start (EV_A_ &once->io); |
2432 | ev_io_start (EV_A_ &once->io); |
1521 | } |
2433 | } |
1522 | |
2434 | |
1523 | ev_watcher_init (&once->to, once_cb_to); |
2435 | ev_init (&once->to, once_cb_to); |
1524 | if (timeout >= 0.) |
2436 | if (timeout >= 0.) |
1525 | { |
2437 | { |
1526 | ev_timer_set (&once->to, timeout, 0.); |
2438 | ev_timer_set (&once->to, timeout, 0.); |
1527 | ev_timer_start (EV_A_ &once->to); |
2439 | ev_timer_start (EV_A_ &once->to); |
1528 | } |
|
|
1529 | } |
2440 | } |
1530 | } |
2441 | } |
1531 | |
2442 | |
|
|
2443 | #if EV_MULTIPLICITY |
|
|
2444 | #include "ev_wrap.h" |
|
|
2445 | #endif |
|
|
2446 | |
|
|
2447 | #ifdef __cplusplus |
|
|
2448 | } |
|
|
2449 | #endif |
|
|
2450 | |