1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
35 | |
43 | |
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44 | /* this big block deduces configuration from config.h */ |
36 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
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46 | # ifdef EV_CONFIG_H |
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47 | # include EV_CONFIG_H |
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48 | # else |
37 | # include "config.h" |
49 | # include "config.h" |
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50 | # endif |
38 | |
51 | |
39 | # if HAVE_CLOCK_GETTIME |
52 | # if HAVE_CLOCK_GETTIME |
40 | # ifndef EV_USE_MONOTONIC |
53 | # ifndef EV_USE_MONOTONIC |
41 | # define EV_USE_MONOTONIC 1 |
54 | # define EV_USE_MONOTONIC 1 |
42 | # endif |
55 | # endif |
43 | # ifndef EV_USE_REALTIME |
56 | # ifndef EV_USE_REALTIME |
44 | # define EV_USE_REALTIME 1 |
57 | # define EV_USE_REALTIME 1 |
45 | # endif |
58 | # endif |
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59 | # else |
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60 | # ifndef EV_USE_MONOTONIC |
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61 | # define EV_USE_MONOTONIC 0 |
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62 | # endif |
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63 | # ifndef EV_USE_REALTIME |
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64 | # define EV_USE_REALTIME 0 |
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65 | # endif |
46 | # endif |
66 | # endif |
47 | |
67 | |
48 | # if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) |
68 | # ifndef EV_USE_NANOSLEEP |
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|
69 | # if HAVE_NANOSLEEP |
49 | # define EV_USE_SELECT 1 |
70 | # define EV_USE_NANOSLEEP 1 |
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71 | # else |
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72 | # define EV_USE_NANOSLEEP 0 |
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73 | # endif |
50 | # endif |
74 | # endif |
51 | |
75 | |
52 | # if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) |
76 | # ifndef EV_USE_SELECT |
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77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
53 | # define EV_USE_POLL 1 |
78 | # define EV_USE_SELECT 1 |
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79 | # else |
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80 | # define EV_USE_SELECT 0 |
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81 | # endif |
54 | # endif |
82 | # endif |
55 | |
83 | |
56 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) |
84 | # ifndef EV_USE_POLL |
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85 | # if HAVE_POLL && HAVE_POLL_H |
57 | # define EV_USE_EPOLL 1 |
86 | # define EV_USE_POLL 1 |
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87 | # else |
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88 | # define EV_USE_POLL 0 |
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89 | # endif |
58 | # endif |
90 | # endif |
59 | |
91 | |
60 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) |
92 | # ifndef EV_USE_EPOLL |
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93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
61 | # define EV_USE_KQUEUE 1 |
94 | # define EV_USE_EPOLL 1 |
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95 | # else |
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96 | # define EV_USE_EPOLL 0 |
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97 | # endif |
62 | # endif |
98 | # endif |
63 | |
99 | |
64 | # if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT) |
100 | # ifndef EV_USE_KQUEUE |
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101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
65 | # define EV_USE_PORT 1 |
102 | # define EV_USE_KQUEUE 1 |
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103 | # else |
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104 | # define EV_USE_KQUEUE 0 |
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105 | # endif |
66 | # endif |
106 | # endif |
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107 | |
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108 | # ifndef EV_USE_PORT |
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109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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110 | # define EV_USE_PORT 1 |
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111 | # else |
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112 | # define EV_USE_PORT 0 |
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113 | # endif |
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114 | # endif |
67 | |
115 | |
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116 | # ifndef EV_USE_INOTIFY |
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117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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118 | # define EV_USE_INOTIFY 1 |
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119 | # else |
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120 | # define EV_USE_INOTIFY 0 |
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121 | # endif |
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122 | # endif |
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123 | |
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124 | # ifndef EV_USE_EVENTFD |
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125 | # if HAVE_EVENTFD |
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126 | # define EV_USE_EVENTFD 1 |
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127 | # else |
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128 | # define EV_USE_EVENTFD 0 |
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129 | # endif |
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130 | # endif |
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131 | |
68 | #endif |
132 | #endif |
69 | |
133 | |
70 | #include <math.h> |
134 | #include <math.h> |
71 | #include <stdlib.h> |
135 | #include <stdlib.h> |
72 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
79 | #include <sys/types.h> |
143 | #include <sys/types.h> |
80 | #include <time.h> |
144 | #include <time.h> |
81 | |
145 | |
82 | #include <signal.h> |
146 | #include <signal.h> |
83 | |
147 | |
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148 | #ifdef EV_H |
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149 | # include EV_H |
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150 | #else |
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151 | # include "ev.h" |
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152 | #endif |
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153 | |
84 | #ifndef _WIN32 |
154 | #ifndef _WIN32 |
85 | # include <unistd.h> |
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86 | # include <sys/time.h> |
155 | # include <sys/time.h> |
87 | # include <sys/wait.h> |
156 | # include <sys/wait.h> |
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157 | # include <unistd.h> |
88 | #else |
158 | #else |
89 | # define WIN32_LEAN_AND_MEAN |
159 | # define WIN32_LEAN_AND_MEAN |
90 | # include <windows.h> |
160 | # include <windows.h> |
91 | # ifndef EV_SELECT_IS_WINSOCKET |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
92 | # define EV_SELECT_IS_WINSOCKET 1 |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
93 | # endif |
163 | # endif |
94 | #endif |
164 | #endif |
95 | |
165 | |
96 | /**/ |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
97 | |
167 | |
98 | #ifndef EV_USE_MONOTONIC |
168 | #ifndef EV_USE_MONOTONIC |
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169 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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170 | # define EV_USE_MONOTONIC 1 |
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171 | # else |
99 | # define EV_USE_MONOTONIC 0 |
172 | # define EV_USE_MONOTONIC 0 |
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173 | # endif |
100 | #endif |
174 | #endif |
101 | |
175 | |
102 | #ifndef EV_USE_REALTIME |
176 | #ifndef EV_USE_REALTIME |
103 | # define EV_USE_REALTIME 0 |
177 | # define EV_USE_REALTIME 0 |
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178 | #endif |
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179 | |
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180 | #ifndef EV_USE_NANOSLEEP |
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181 | # if _POSIX_C_SOURCE >= 199309L |
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182 | # define EV_USE_NANOSLEEP 1 |
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183 | # else |
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184 | # define EV_USE_NANOSLEEP 0 |
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185 | # endif |
104 | #endif |
186 | #endif |
105 | |
187 | |
106 | #ifndef EV_USE_SELECT |
188 | #ifndef EV_USE_SELECT |
107 | # define EV_USE_SELECT 1 |
189 | # define EV_USE_SELECT 1 |
108 | #endif |
190 | #endif |
… | |
… | |
114 | # define EV_USE_POLL 1 |
196 | # define EV_USE_POLL 1 |
115 | # endif |
197 | # endif |
116 | #endif |
198 | #endif |
117 | |
199 | |
118 | #ifndef EV_USE_EPOLL |
200 | #ifndef EV_USE_EPOLL |
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201 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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202 | # define EV_USE_EPOLL 1 |
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203 | # else |
119 | # define EV_USE_EPOLL 0 |
204 | # define EV_USE_EPOLL 0 |
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205 | # endif |
120 | #endif |
206 | #endif |
121 | |
207 | |
122 | #ifndef EV_USE_KQUEUE |
208 | #ifndef EV_USE_KQUEUE |
123 | # define EV_USE_KQUEUE 0 |
209 | # define EV_USE_KQUEUE 0 |
124 | #endif |
210 | #endif |
125 | |
211 | |
126 | #ifndef EV_USE_PORT |
212 | #ifndef EV_USE_PORT |
127 | # define EV_USE_PORT 0 |
213 | # define EV_USE_PORT 0 |
128 | #endif |
214 | #endif |
129 | |
215 | |
130 | /**/ |
216 | #ifndef EV_USE_INOTIFY |
131 | |
217 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
132 | /* darwin simply cannot be helped */ |
218 | # define EV_USE_INOTIFY 1 |
133 | #ifdef __APPLE__ |
219 | # else |
134 | # undef EV_USE_POLL |
220 | # define EV_USE_INOTIFY 0 |
135 | # undef EV_USE_KQUEUE |
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136 | #endif |
221 | # endif |
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222 | #endif |
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223 | |
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224 | #ifndef EV_PID_HASHSIZE |
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225 | # if EV_MINIMAL |
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226 | # define EV_PID_HASHSIZE 1 |
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227 | # else |
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228 | # define EV_PID_HASHSIZE 16 |
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229 | # endif |
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230 | #endif |
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231 | |
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232 | #ifndef EV_INOTIFY_HASHSIZE |
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233 | # if EV_MINIMAL |
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234 | # define EV_INOTIFY_HASHSIZE 1 |
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235 | # else |
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236 | # define EV_INOTIFY_HASHSIZE 16 |
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237 | # endif |
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238 | #endif |
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239 | |
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240 | #ifndef EV_USE_EVENTFD |
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241 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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242 | # define EV_USE_EVENTFD 1 |
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243 | # else |
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244 | # define EV_USE_EVENTFD 0 |
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245 | # endif |
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246 | #endif |
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247 | |
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248 | #if 0 /* debugging */ |
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249 | # define EV_VERIFY 3 |
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250 | # define EV_USE_4HEAP 1 |
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251 | # define EV_HEAP_CACHE_AT 1 |
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252 | #endif |
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253 | |
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254 | #ifndef EV_VERIFY |
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255 | # define EV_VERIFY !EV_MINIMAL |
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256 | #endif |
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257 | |
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258 | #ifndef EV_USE_4HEAP |
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259 | # define EV_USE_4HEAP !EV_MINIMAL |
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260 | #endif |
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261 | |
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262 | #ifndef EV_HEAP_CACHE_AT |
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263 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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264 | #endif |
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265 | |
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266 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
137 | |
267 | |
138 | #ifndef CLOCK_MONOTONIC |
268 | #ifndef CLOCK_MONOTONIC |
139 | # undef EV_USE_MONOTONIC |
269 | # undef EV_USE_MONOTONIC |
140 | # define EV_USE_MONOTONIC 0 |
270 | # define EV_USE_MONOTONIC 0 |
141 | #endif |
271 | #endif |
… | |
… | |
143 | #ifndef CLOCK_REALTIME |
273 | #ifndef CLOCK_REALTIME |
144 | # undef EV_USE_REALTIME |
274 | # undef EV_USE_REALTIME |
145 | # define EV_USE_REALTIME 0 |
275 | # define EV_USE_REALTIME 0 |
146 | #endif |
276 | #endif |
147 | |
277 | |
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278 | #if !EV_STAT_ENABLE |
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279 | # undef EV_USE_INOTIFY |
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280 | # define EV_USE_INOTIFY 0 |
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281 | #endif |
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282 | |
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283 | #if !EV_USE_NANOSLEEP |
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284 | # ifndef _WIN32 |
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285 | # include <sys/select.h> |
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286 | # endif |
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287 | #endif |
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288 | |
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289 | #if EV_USE_INOTIFY |
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290 | # include <sys/inotify.h> |
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291 | #endif |
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292 | |
148 | #if EV_SELECT_IS_WINSOCKET |
293 | #if EV_SELECT_IS_WINSOCKET |
149 | # include <winsock.h> |
294 | # include <winsock.h> |
150 | #endif |
295 | #endif |
151 | |
296 | |
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297 | #if EV_USE_EVENTFD |
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298 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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299 | # include <stdint.h> |
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300 | # ifdef __cplusplus |
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301 | extern "C" { |
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302 | # endif |
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303 | int eventfd (unsigned int initval, int flags); |
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304 | # ifdef __cplusplus |
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305 | } |
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306 | # endif |
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307 | #endif |
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308 | |
152 | /**/ |
309 | /**/ |
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310 | |
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311 | #if EV_VERIFY >= 3 |
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312 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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313 | #else |
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314 | # define EV_FREQUENT_CHECK do { } while (0) |
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315 | #endif |
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316 | |
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317 | /* |
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318 | * This is used to avoid floating point rounding problems. |
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319 | * It is added to ev_rt_now when scheduling periodics |
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320 | * to ensure progress, time-wise, even when rounding |
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321 | * errors are against us. |
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322 | * This value is good at least till the year 4000. |
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323 | * Better solutions welcome. |
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324 | */ |
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325 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
153 | |
326 | |
154 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
327 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
155 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
328 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
156 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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157 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
329 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
158 | |
330 | |
159 | #ifdef EV_H |
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160 | # include EV_H |
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161 | #else |
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162 | # include "ev.h" |
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163 | #endif |
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164 | |
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165 | #if __GNUC__ >= 3 |
331 | #if __GNUC__ >= 4 |
166 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
332 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
167 | # define inline static inline |
333 | # define noinline __attribute__ ((noinline)) |
168 | #else |
334 | #else |
169 | # define expect(expr,value) (expr) |
335 | # define expect(expr,value) (expr) |
170 | # define inline static |
336 | # define noinline |
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337 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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338 | # define inline |
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339 | # endif |
171 | #endif |
340 | #endif |
172 | |
341 | |
173 | #define expect_false(expr) expect ((expr) != 0, 0) |
342 | #define expect_false(expr) expect ((expr) != 0, 0) |
174 | #define expect_true(expr) expect ((expr) != 0, 1) |
343 | #define expect_true(expr) expect ((expr) != 0, 1) |
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344 | #define inline_size static inline |
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345 | |
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346 | #if EV_MINIMAL |
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347 | # define inline_speed static noinline |
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348 | #else |
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349 | # define inline_speed static inline |
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350 | #endif |
175 | |
351 | |
176 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
352 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
177 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
353 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
178 | |
354 | |
179 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
355 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
180 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
356 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
181 | |
357 | |
182 | typedef struct ev_watcher *W; |
358 | typedef ev_watcher *W; |
183 | typedef struct ev_watcher_list *WL; |
359 | typedef ev_watcher_list *WL; |
184 | typedef struct ev_watcher_time *WT; |
360 | typedef ev_watcher_time *WT; |
185 | |
361 | |
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362 | #define ev_active(w) ((W)(w))->active |
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363 | #define ev_at(w) ((WT)(w))->at |
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364 | |
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365 | #if EV_USE_MONOTONIC |
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366 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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367 | /* giving it a reasonably high chance of working on typical architetcures */ |
186 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
368 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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369 | #endif |
187 | |
370 | |
188 | #ifdef _WIN32 |
371 | #ifdef _WIN32 |
189 | # include "ev_win32.c" |
372 | # include "ev_win32.c" |
190 | #endif |
373 | #endif |
191 | |
374 | |
192 | /*****************************************************************************/ |
375 | /*****************************************************************************/ |
193 | |
376 | |
194 | static void (*syserr_cb)(const char *msg); |
377 | static void (*syserr_cb)(const char *msg); |
195 | |
378 | |
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379 | void |
196 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
380 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
197 | { |
381 | { |
198 | syserr_cb = cb; |
382 | syserr_cb = cb; |
199 | } |
383 | } |
200 | |
384 | |
201 | static void |
385 | static void noinline |
202 | syserr (const char *msg) |
386 | syserr (const char *msg) |
203 | { |
387 | { |
204 | if (!msg) |
388 | if (!msg) |
205 | msg = "(libev) system error"; |
389 | msg = "(libev) system error"; |
206 | |
390 | |
… | |
… | |
211 | perror (msg); |
395 | perror (msg); |
212 | abort (); |
396 | abort (); |
213 | } |
397 | } |
214 | } |
398 | } |
215 | |
399 | |
|
|
400 | static void * |
|
|
401 | ev_realloc_emul (void *ptr, long size) |
|
|
402 | { |
|
|
403 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
404 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
405 | * the single unix specification, so work around them here. |
|
|
406 | */ |
|
|
407 | |
|
|
408 | if (size) |
|
|
409 | return realloc (ptr, size); |
|
|
410 | |
|
|
411 | free (ptr); |
|
|
412 | return 0; |
|
|
413 | } |
|
|
414 | |
216 | static void *(*alloc)(void *ptr, long size); |
415 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
217 | |
416 | |
|
|
417 | void |
218 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
418 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
219 | { |
419 | { |
220 | alloc = cb; |
420 | alloc = cb; |
221 | } |
421 | } |
222 | |
422 | |
223 | static void * |
423 | inline_speed void * |
224 | ev_realloc (void *ptr, long size) |
424 | ev_realloc (void *ptr, long size) |
225 | { |
425 | { |
226 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
426 | ptr = alloc (ptr, size); |
227 | |
427 | |
228 | if (!ptr && size) |
428 | if (!ptr && size) |
229 | { |
429 | { |
230 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
430 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
231 | abort (); |
431 | abort (); |
… | |
… | |
252 | typedef struct |
452 | typedef struct |
253 | { |
453 | { |
254 | W w; |
454 | W w; |
255 | int events; |
455 | int events; |
256 | } ANPENDING; |
456 | } ANPENDING; |
|
|
457 | |
|
|
458 | #if EV_USE_INOTIFY |
|
|
459 | /* hash table entry per inotify-id */ |
|
|
460 | typedef struct |
|
|
461 | { |
|
|
462 | WL head; |
|
|
463 | } ANFS; |
|
|
464 | #endif |
|
|
465 | |
|
|
466 | /* Heap Entry */ |
|
|
467 | #if EV_HEAP_CACHE_AT |
|
|
468 | typedef struct { |
|
|
469 | ev_tstamp at; |
|
|
470 | WT w; |
|
|
471 | } ANHE; |
|
|
472 | |
|
|
473 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
474 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
475 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
476 | #else |
|
|
477 | typedef WT ANHE; |
|
|
478 | |
|
|
479 | #define ANHE_w(he) (he) |
|
|
480 | #define ANHE_at(he) (he)->at |
|
|
481 | #define ANHE_at_cache(he) |
|
|
482 | #endif |
257 | |
483 | |
258 | #if EV_MULTIPLICITY |
484 | #if EV_MULTIPLICITY |
259 | |
485 | |
260 | struct ev_loop |
486 | struct ev_loop |
261 | { |
487 | { |
… | |
… | |
295 | gettimeofday (&tv, 0); |
521 | gettimeofday (&tv, 0); |
296 | return tv.tv_sec + tv.tv_usec * 1e-6; |
522 | return tv.tv_sec + tv.tv_usec * 1e-6; |
297 | #endif |
523 | #endif |
298 | } |
524 | } |
299 | |
525 | |
300 | inline ev_tstamp |
526 | ev_tstamp inline_size |
301 | get_clock (void) |
527 | get_clock (void) |
302 | { |
528 | { |
303 | #if EV_USE_MONOTONIC |
529 | #if EV_USE_MONOTONIC |
304 | if (expect_true (have_monotonic)) |
530 | if (expect_true (have_monotonic)) |
305 | { |
531 | { |
… | |
… | |
318 | { |
544 | { |
319 | return ev_rt_now; |
545 | return ev_rt_now; |
320 | } |
546 | } |
321 | #endif |
547 | #endif |
322 | |
548 | |
323 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
549 | void |
|
|
550 | ev_sleep (ev_tstamp delay) |
|
|
551 | { |
|
|
552 | if (delay > 0.) |
|
|
553 | { |
|
|
554 | #if EV_USE_NANOSLEEP |
|
|
555 | struct timespec ts; |
|
|
556 | |
|
|
557 | ts.tv_sec = (time_t)delay; |
|
|
558 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
559 | |
|
|
560 | nanosleep (&ts, 0); |
|
|
561 | #elif defined(_WIN32) |
|
|
562 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
563 | #else |
|
|
564 | struct timeval tv; |
|
|
565 | |
|
|
566 | tv.tv_sec = (time_t)delay; |
|
|
567 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
568 | |
|
|
569 | select (0, 0, 0, 0, &tv); |
|
|
570 | #endif |
|
|
571 | } |
|
|
572 | } |
|
|
573 | |
|
|
574 | /*****************************************************************************/ |
|
|
575 | |
|
|
576 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
577 | |
|
|
578 | int inline_size |
|
|
579 | array_nextsize (int elem, int cur, int cnt) |
|
|
580 | { |
|
|
581 | int ncur = cur + 1; |
|
|
582 | |
|
|
583 | do |
|
|
584 | ncur <<= 1; |
|
|
585 | while (cnt > ncur); |
|
|
586 | |
|
|
587 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
588 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
589 | { |
|
|
590 | ncur *= elem; |
|
|
591 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
592 | ncur = ncur - sizeof (void *) * 4; |
|
|
593 | ncur /= elem; |
|
|
594 | } |
|
|
595 | |
|
|
596 | return ncur; |
|
|
597 | } |
|
|
598 | |
|
|
599 | static noinline void * |
|
|
600 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
601 | { |
|
|
602 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
603 | return ev_realloc (base, elem * *cur); |
|
|
604 | } |
324 | |
605 | |
325 | #define array_needsize(type,base,cur,cnt,init) \ |
606 | #define array_needsize(type,base,cur,cnt,init) \ |
326 | if (expect_false ((cnt) > cur)) \ |
607 | if (expect_false ((cnt) > (cur))) \ |
327 | { \ |
608 | { \ |
328 | int newcnt = cur; \ |
609 | int ocur_ = (cur); \ |
329 | do \ |
610 | (base) = (type *)array_realloc \ |
330 | { \ |
611 | (sizeof (type), (base), &(cur), (cnt)); \ |
331 | newcnt = array_roundsize (type, newcnt << 1); \ |
612 | init ((base) + (ocur_), (cur) - ocur_); \ |
332 | } \ |
|
|
333 | while ((cnt) > newcnt); \ |
|
|
334 | \ |
|
|
335 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
336 | init (base + cur, newcnt - cur); \ |
|
|
337 | cur = newcnt; \ |
|
|
338 | } |
613 | } |
339 | |
614 | |
|
|
615 | #if 0 |
340 | #define array_slim(type,stem) \ |
616 | #define array_slim(type,stem) \ |
341 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
617 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
342 | { \ |
618 | { \ |
343 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
619 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
344 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
620 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
345 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
621 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
346 | } |
622 | } |
|
|
623 | #endif |
347 | |
624 | |
348 | #define array_free(stem, idx) \ |
625 | #define array_free(stem, idx) \ |
349 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
626 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
350 | |
627 | |
351 | /*****************************************************************************/ |
628 | /*****************************************************************************/ |
352 | |
629 | |
353 | static void |
630 | void noinline |
|
|
631 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
632 | { |
|
|
633 | W w_ = (W)w; |
|
|
634 | int pri = ABSPRI (w_); |
|
|
635 | |
|
|
636 | if (expect_false (w_->pending)) |
|
|
637 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
638 | else |
|
|
639 | { |
|
|
640 | w_->pending = ++pendingcnt [pri]; |
|
|
641 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
642 | pendings [pri][w_->pending - 1].w = w_; |
|
|
643 | pendings [pri][w_->pending - 1].events = revents; |
|
|
644 | } |
|
|
645 | } |
|
|
646 | |
|
|
647 | void inline_speed |
|
|
648 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
649 | { |
|
|
650 | int i; |
|
|
651 | |
|
|
652 | for (i = 0; i < eventcnt; ++i) |
|
|
653 | ev_feed_event (EV_A_ events [i], type); |
|
|
654 | } |
|
|
655 | |
|
|
656 | /*****************************************************************************/ |
|
|
657 | |
|
|
658 | void inline_size |
354 | anfds_init (ANFD *base, int count) |
659 | anfds_init (ANFD *base, int count) |
355 | { |
660 | { |
356 | while (count--) |
661 | while (count--) |
357 | { |
662 | { |
358 | base->head = 0; |
663 | base->head = 0; |
… | |
… | |
361 | |
666 | |
362 | ++base; |
667 | ++base; |
363 | } |
668 | } |
364 | } |
669 | } |
365 | |
670 | |
366 | void |
671 | void inline_speed |
367 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
368 | { |
|
|
369 | W w_ = (W)w; |
|
|
370 | |
|
|
371 | if (expect_false (w_->pending)) |
|
|
372 | { |
|
|
373 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
374 | return; |
|
|
375 | } |
|
|
376 | |
|
|
377 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
378 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
379 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
380 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
381 | } |
|
|
382 | |
|
|
383 | static void |
|
|
384 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
385 | { |
|
|
386 | int i; |
|
|
387 | |
|
|
388 | for (i = 0; i < eventcnt; ++i) |
|
|
389 | ev_feed_event (EV_A_ events [i], type); |
|
|
390 | } |
|
|
391 | |
|
|
392 | inline void |
|
|
393 | fd_event (EV_P_ int fd, int revents) |
672 | fd_event (EV_P_ int fd, int revents) |
394 | { |
673 | { |
395 | ANFD *anfd = anfds + fd; |
674 | ANFD *anfd = anfds + fd; |
396 | struct ev_io *w; |
675 | ev_io *w; |
397 | |
676 | |
398 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
677 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
399 | { |
678 | { |
400 | int ev = w->events & revents; |
679 | int ev = w->events & revents; |
401 | |
680 | |
402 | if (ev) |
681 | if (ev) |
403 | ev_feed_event (EV_A_ (W)w, ev); |
682 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
405 | } |
684 | } |
406 | |
685 | |
407 | void |
686 | void |
408 | ev_feed_fd_event (EV_P_ int fd, int revents) |
687 | ev_feed_fd_event (EV_P_ int fd, int revents) |
409 | { |
688 | { |
|
|
689 | if (fd >= 0 && fd < anfdmax) |
410 | fd_event (EV_A_ fd, revents); |
690 | fd_event (EV_A_ fd, revents); |
411 | } |
691 | } |
412 | |
692 | |
413 | /*****************************************************************************/ |
693 | void inline_size |
414 | |
|
|
415 | inline void |
|
|
416 | fd_reify (EV_P) |
694 | fd_reify (EV_P) |
417 | { |
695 | { |
418 | int i; |
696 | int i; |
419 | |
697 | |
420 | for (i = 0; i < fdchangecnt; ++i) |
698 | for (i = 0; i < fdchangecnt; ++i) |
421 | { |
699 | { |
422 | int fd = fdchanges [i]; |
700 | int fd = fdchanges [i]; |
423 | ANFD *anfd = anfds + fd; |
701 | ANFD *anfd = anfds + fd; |
424 | struct ev_io *w; |
702 | ev_io *w; |
425 | |
703 | |
426 | int events = 0; |
704 | unsigned char events = 0; |
427 | |
705 | |
428 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
706 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
429 | events |= w->events; |
707 | events |= (unsigned char)w->events; |
430 | |
708 | |
431 | #if EV_SELECT_IS_WINSOCKET |
709 | #if EV_SELECT_IS_WINSOCKET |
432 | if (events) |
710 | if (events) |
433 | { |
711 | { |
434 | unsigned long argp; |
712 | unsigned long argp; |
|
|
713 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
714 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
715 | #else |
435 | anfd->handle = _get_osfhandle (fd); |
716 | anfd->handle = _get_osfhandle (fd); |
|
|
717 | #endif |
436 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
718 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
437 | } |
719 | } |
438 | #endif |
720 | #endif |
439 | |
721 | |
|
|
722 | { |
|
|
723 | unsigned char o_events = anfd->events; |
|
|
724 | unsigned char o_reify = anfd->reify; |
|
|
725 | |
440 | anfd->reify = 0; |
726 | anfd->reify = 0; |
441 | |
|
|
442 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
443 | anfd->events = events; |
727 | anfd->events = events; |
|
|
728 | |
|
|
729 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
730 | backend_modify (EV_A_ fd, o_events, events); |
|
|
731 | } |
444 | } |
732 | } |
445 | |
733 | |
446 | fdchangecnt = 0; |
734 | fdchangecnt = 0; |
447 | } |
735 | } |
448 | |
736 | |
449 | static void |
737 | void inline_size |
450 | fd_change (EV_P_ int fd) |
738 | fd_change (EV_P_ int fd, int flags) |
451 | { |
739 | { |
452 | if (expect_false (anfds [fd].reify)) |
740 | unsigned char reify = anfds [fd].reify; |
453 | return; |
|
|
454 | |
|
|
455 | anfds [fd].reify = 1; |
741 | anfds [fd].reify |= flags; |
456 | |
742 | |
|
|
743 | if (expect_true (!reify)) |
|
|
744 | { |
457 | ++fdchangecnt; |
745 | ++fdchangecnt; |
458 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
746 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
459 | fdchanges [fdchangecnt - 1] = fd; |
747 | fdchanges [fdchangecnt - 1] = fd; |
|
|
748 | } |
460 | } |
749 | } |
461 | |
750 | |
462 | static void |
751 | void inline_speed |
463 | fd_kill (EV_P_ int fd) |
752 | fd_kill (EV_P_ int fd) |
464 | { |
753 | { |
465 | struct ev_io *w; |
754 | ev_io *w; |
466 | |
755 | |
467 | while ((w = (struct ev_io *)anfds [fd].head)) |
756 | while ((w = (ev_io *)anfds [fd].head)) |
468 | { |
757 | { |
469 | ev_io_stop (EV_A_ w); |
758 | ev_io_stop (EV_A_ w); |
470 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
759 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
471 | } |
760 | } |
472 | } |
761 | } |
473 | |
762 | |
474 | inline int |
763 | int inline_size |
475 | fd_valid (int fd) |
764 | fd_valid (int fd) |
476 | { |
765 | { |
477 | #ifdef _WIN32 |
766 | #ifdef _WIN32 |
478 | return _get_osfhandle (fd) != -1; |
767 | return _get_osfhandle (fd) != -1; |
479 | #else |
768 | #else |
480 | return fcntl (fd, F_GETFD) != -1; |
769 | return fcntl (fd, F_GETFD) != -1; |
481 | #endif |
770 | #endif |
482 | } |
771 | } |
483 | |
772 | |
484 | /* called on EBADF to verify fds */ |
773 | /* called on EBADF to verify fds */ |
485 | static void |
774 | static void noinline |
486 | fd_ebadf (EV_P) |
775 | fd_ebadf (EV_P) |
487 | { |
776 | { |
488 | int fd; |
777 | int fd; |
489 | |
778 | |
490 | for (fd = 0; fd < anfdmax; ++fd) |
779 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
492 | if (!fd_valid (fd) == -1 && errno == EBADF) |
781 | if (!fd_valid (fd) == -1 && errno == EBADF) |
493 | fd_kill (EV_A_ fd); |
782 | fd_kill (EV_A_ fd); |
494 | } |
783 | } |
495 | |
784 | |
496 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
785 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
497 | static void |
786 | static void noinline |
498 | fd_enomem (EV_P) |
787 | fd_enomem (EV_P) |
499 | { |
788 | { |
500 | int fd; |
789 | int fd; |
501 | |
790 | |
502 | for (fd = anfdmax; fd--; ) |
791 | for (fd = anfdmax; fd--; ) |
… | |
… | |
505 | fd_kill (EV_A_ fd); |
794 | fd_kill (EV_A_ fd); |
506 | return; |
795 | return; |
507 | } |
796 | } |
508 | } |
797 | } |
509 | |
798 | |
510 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
799 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
511 | static void |
800 | static void noinline |
512 | fd_rearm_all (EV_P) |
801 | fd_rearm_all (EV_P) |
513 | { |
802 | { |
514 | int fd; |
803 | int fd; |
515 | |
804 | |
516 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
517 | for (fd = 0; fd < anfdmax; ++fd) |
805 | for (fd = 0; fd < anfdmax; ++fd) |
518 | if (anfds [fd].events) |
806 | if (anfds [fd].events) |
519 | { |
807 | { |
520 | anfds [fd].events = 0; |
808 | anfds [fd].events = 0; |
521 | fd_change (EV_A_ fd); |
809 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
522 | } |
810 | } |
523 | } |
811 | } |
524 | |
812 | |
525 | /*****************************************************************************/ |
813 | /*****************************************************************************/ |
526 | |
814 | |
527 | static void |
815 | /* |
528 | upheap (WT *heap, int k) |
816 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
529 | { |
817 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
530 | WT w = heap [k]; |
818 | * the branching factor of the d-tree. |
|
|
819 | */ |
531 | |
820 | |
532 | while (k && heap [k >> 1]->at > w->at) |
821 | /* |
533 | { |
822 | * at the moment we allow libev the luxury of two heaps, |
534 | heap [k] = heap [k >> 1]; |
823 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
535 | ((W)heap [k])->active = k + 1; |
824 | * which is more cache-efficient. |
536 | k >>= 1; |
825 | * the difference is about 5% with 50000+ watchers. |
537 | } |
826 | */ |
|
|
827 | #if EV_USE_4HEAP |
538 | |
828 | |
539 | heap [k] = w; |
829 | #define DHEAP 4 |
540 | ((W)heap [k])->active = k + 1; |
830 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
831 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
832 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
541 | |
833 | |
542 | } |
834 | /* away from the root */ |
543 | |
835 | void inline_speed |
544 | static void |
|
|
545 | downheap (WT *heap, int N, int k) |
836 | downheap (ANHE *heap, int N, int k) |
546 | { |
837 | { |
547 | WT w = heap [k]; |
838 | ANHE he = heap [k]; |
|
|
839 | ANHE *E = heap + N + HEAP0; |
548 | |
840 | |
549 | while (k < (N >> 1)) |
841 | for (;;) |
550 | { |
842 | { |
551 | int j = k << 1; |
843 | ev_tstamp minat; |
|
|
844 | ANHE *minpos; |
|
|
845 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
552 | |
846 | |
553 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
847 | /* find minimum child */ |
|
|
848 | if (expect_true (pos + DHEAP - 1 < E)) |
554 | ++j; |
849 | { |
555 | |
850 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
556 | if (w->at <= heap [j]->at) |
851 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
852 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
853 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
854 | } |
|
|
855 | else if (pos < E) |
|
|
856 | { |
|
|
857 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
858 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
859 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
860 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
861 | } |
|
|
862 | else |
557 | break; |
863 | break; |
558 | |
864 | |
|
|
865 | if (ANHE_at (he) <= minat) |
|
|
866 | break; |
|
|
867 | |
|
|
868 | heap [k] = *minpos; |
|
|
869 | ev_active (ANHE_w (*minpos)) = k; |
|
|
870 | |
|
|
871 | k = minpos - heap; |
|
|
872 | } |
|
|
873 | |
|
|
874 | heap [k] = he; |
|
|
875 | ev_active (ANHE_w (he)) = k; |
|
|
876 | } |
|
|
877 | |
|
|
878 | #else /* 4HEAP */ |
|
|
879 | |
|
|
880 | #define HEAP0 1 |
|
|
881 | #define HPARENT(k) ((k) >> 1) |
|
|
882 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
883 | |
|
|
884 | /* away from the root */ |
|
|
885 | void inline_speed |
|
|
886 | downheap (ANHE *heap, int N, int k) |
|
|
887 | { |
|
|
888 | ANHE he = heap [k]; |
|
|
889 | |
|
|
890 | for (;;) |
|
|
891 | { |
|
|
892 | int c = k << 1; |
|
|
893 | |
|
|
894 | if (c > N + HEAP0 - 1) |
|
|
895 | break; |
|
|
896 | |
|
|
897 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
898 | ? 1 : 0; |
|
|
899 | |
|
|
900 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
901 | break; |
|
|
902 | |
559 | heap [k] = heap [j]; |
903 | heap [k] = heap [c]; |
560 | ((W)heap [k])->active = k + 1; |
904 | ev_active (ANHE_w (heap [k])) = k; |
|
|
905 | |
561 | k = j; |
906 | k = c; |
562 | } |
907 | } |
563 | |
908 | |
564 | heap [k] = w; |
909 | heap [k] = he; |
565 | ((W)heap [k])->active = k + 1; |
910 | ev_active (ANHE_w (he)) = k; |
566 | } |
911 | } |
|
|
912 | #endif |
567 | |
913 | |
568 | inline void |
914 | /* towards the root */ |
|
|
915 | void inline_speed |
|
|
916 | upheap (ANHE *heap, int k) |
|
|
917 | { |
|
|
918 | ANHE he = heap [k]; |
|
|
919 | |
|
|
920 | for (;;) |
|
|
921 | { |
|
|
922 | int p = HPARENT (k); |
|
|
923 | |
|
|
924 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
925 | break; |
|
|
926 | |
|
|
927 | heap [k] = heap [p]; |
|
|
928 | ev_active (ANHE_w (heap [k])) = k; |
|
|
929 | k = p; |
|
|
930 | } |
|
|
931 | |
|
|
932 | heap [k] = he; |
|
|
933 | ev_active (ANHE_w (he)) = k; |
|
|
934 | } |
|
|
935 | |
|
|
936 | void inline_size |
569 | adjustheap (WT *heap, int N, int k) |
937 | adjustheap (ANHE *heap, int N, int k) |
570 | { |
938 | { |
|
|
939 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
571 | upheap (heap, k); |
940 | upheap (heap, k); |
|
|
941 | else |
572 | downheap (heap, N, k); |
942 | downheap (heap, N, k); |
|
|
943 | } |
|
|
944 | |
|
|
945 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
946 | void inline_size |
|
|
947 | reheap (ANHE *heap, int N) |
|
|
948 | { |
|
|
949 | int i; |
|
|
950 | |
|
|
951 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
952 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
953 | for (i = 0; i < N; ++i) |
|
|
954 | upheap (heap, i + HEAP0); |
573 | } |
955 | } |
574 | |
956 | |
575 | /*****************************************************************************/ |
957 | /*****************************************************************************/ |
576 | |
958 | |
577 | typedef struct |
959 | typedef struct |
578 | { |
960 | { |
579 | WL head; |
961 | WL head; |
580 | sig_atomic_t volatile gotsig; |
962 | EV_ATOMIC_T gotsig; |
581 | } ANSIG; |
963 | } ANSIG; |
582 | |
964 | |
583 | static ANSIG *signals; |
965 | static ANSIG *signals; |
584 | static int signalmax; |
966 | static int signalmax; |
585 | |
967 | |
586 | static int sigpipe [2]; |
968 | static EV_ATOMIC_T gotsig; |
587 | static sig_atomic_t volatile gotsig; |
|
|
588 | static struct ev_io sigev; |
|
|
589 | |
969 | |
590 | static void |
970 | void inline_size |
591 | signals_init (ANSIG *base, int count) |
971 | signals_init (ANSIG *base, int count) |
592 | { |
972 | { |
593 | while (count--) |
973 | while (count--) |
594 | { |
974 | { |
595 | base->head = 0; |
975 | base->head = 0; |
… | |
… | |
597 | |
977 | |
598 | ++base; |
978 | ++base; |
599 | } |
979 | } |
600 | } |
980 | } |
601 | |
981 | |
602 | static void |
982 | /*****************************************************************************/ |
603 | sighandler (int signum) |
|
|
604 | { |
|
|
605 | #if _WIN32 |
|
|
606 | signal (signum, sighandler); |
|
|
607 | #endif |
|
|
608 | |
983 | |
609 | signals [signum - 1].gotsig = 1; |
984 | void inline_speed |
610 | |
|
|
611 | if (!gotsig) |
|
|
612 | { |
|
|
613 | int old_errno = errno; |
|
|
614 | gotsig = 1; |
|
|
615 | write (sigpipe [1], &signum, 1); |
|
|
616 | errno = old_errno; |
|
|
617 | } |
|
|
618 | } |
|
|
619 | |
|
|
620 | void |
|
|
621 | ev_feed_signal_event (EV_P_ int signum) |
|
|
622 | { |
|
|
623 | WL w; |
|
|
624 | |
|
|
625 | #if EV_MULTIPLICITY |
|
|
626 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
627 | #endif |
|
|
628 | |
|
|
629 | --signum; |
|
|
630 | |
|
|
631 | if (signum < 0 || signum >= signalmax) |
|
|
632 | return; |
|
|
633 | |
|
|
634 | signals [signum].gotsig = 0; |
|
|
635 | |
|
|
636 | for (w = signals [signum].head; w; w = w->next) |
|
|
637 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
638 | } |
|
|
639 | |
|
|
640 | static void |
|
|
641 | sigcb (EV_P_ struct ev_io *iow, int revents) |
|
|
642 | { |
|
|
643 | int signum; |
|
|
644 | |
|
|
645 | read (sigpipe [0], &revents, 1); |
|
|
646 | gotsig = 0; |
|
|
647 | |
|
|
648 | for (signum = signalmax; signum--; ) |
|
|
649 | if (signals [signum].gotsig) |
|
|
650 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
651 | } |
|
|
652 | |
|
|
653 | static void |
|
|
654 | fd_intern (int fd) |
985 | fd_intern (int fd) |
655 | { |
986 | { |
656 | #ifdef _WIN32 |
987 | #ifdef _WIN32 |
657 | int arg = 1; |
988 | int arg = 1; |
658 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
989 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
660 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
991 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
661 | fcntl (fd, F_SETFL, O_NONBLOCK); |
992 | fcntl (fd, F_SETFL, O_NONBLOCK); |
662 | #endif |
993 | #endif |
663 | } |
994 | } |
664 | |
995 | |
|
|
996 | static void noinline |
|
|
997 | evpipe_init (EV_P) |
|
|
998 | { |
|
|
999 | if (!ev_is_active (&pipeev)) |
|
|
1000 | { |
|
|
1001 | #if EV_USE_EVENTFD |
|
|
1002 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1003 | { |
|
|
1004 | evpipe [0] = -1; |
|
|
1005 | fd_intern (evfd); |
|
|
1006 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1007 | } |
|
|
1008 | else |
|
|
1009 | #endif |
|
|
1010 | { |
|
|
1011 | while (pipe (evpipe)) |
|
|
1012 | syserr ("(libev) error creating signal/async pipe"); |
|
|
1013 | |
|
|
1014 | fd_intern (evpipe [0]); |
|
|
1015 | fd_intern (evpipe [1]); |
|
|
1016 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1017 | } |
|
|
1018 | |
|
|
1019 | ev_io_start (EV_A_ &pipeev); |
|
|
1020 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1021 | } |
|
|
1022 | } |
|
|
1023 | |
|
|
1024 | void inline_size |
|
|
1025 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1026 | { |
|
|
1027 | if (!*flag) |
|
|
1028 | { |
|
|
1029 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1030 | |
|
|
1031 | *flag = 1; |
|
|
1032 | |
|
|
1033 | #if EV_USE_EVENTFD |
|
|
1034 | if (evfd >= 0) |
|
|
1035 | { |
|
|
1036 | uint64_t counter = 1; |
|
|
1037 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1038 | } |
|
|
1039 | else |
|
|
1040 | #endif |
|
|
1041 | write (evpipe [1], &old_errno, 1); |
|
|
1042 | |
|
|
1043 | errno = old_errno; |
|
|
1044 | } |
|
|
1045 | } |
|
|
1046 | |
665 | static void |
1047 | static void |
666 | siginit (EV_P) |
1048 | pipecb (EV_P_ ev_io *iow, int revents) |
667 | { |
1049 | { |
668 | fd_intern (sigpipe [0]); |
1050 | #if EV_USE_EVENTFD |
669 | fd_intern (sigpipe [1]); |
1051 | if (evfd >= 0) |
|
|
1052 | { |
|
|
1053 | uint64_t counter; |
|
|
1054 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1055 | } |
|
|
1056 | else |
|
|
1057 | #endif |
|
|
1058 | { |
|
|
1059 | char dummy; |
|
|
1060 | read (evpipe [0], &dummy, 1); |
|
|
1061 | } |
670 | |
1062 | |
671 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
1063 | if (gotsig && ev_is_default_loop (EV_A)) |
672 | ev_io_start (EV_A_ &sigev); |
1064 | { |
673 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1065 | int signum; |
|
|
1066 | gotsig = 0; |
|
|
1067 | |
|
|
1068 | for (signum = signalmax; signum--; ) |
|
|
1069 | if (signals [signum].gotsig) |
|
|
1070 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | #if EV_ASYNC_ENABLE |
|
|
1074 | if (gotasync) |
|
|
1075 | { |
|
|
1076 | int i; |
|
|
1077 | gotasync = 0; |
|
|
1078 | |
|
|
1079 | for (i = asynccnt; i--; ) |
|
|
1080 | if (asyncs [i]->sent) |
|
|
1081 | { |
|
|
1082 | asyncs [i]->sent = 0; |
|
|
1083 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1084 | } |
|
|
1085 | } |
|
|
1086 | #endif |
674 | } |
1087 | } |
675 | |
1088 | |
676 | /*****************************************************************************/ |
1089 | /*****************************************************************************/ |
677 | |
1090 | |
678 | static struct ev_child *childs [PID_HASHSIZE]; |
1091 | static void |
|
|
1092 | ev_sighandler (int signum) |
|
|
1093 | { |
|
|
1094 | #if EV_MULTIPLICITY |
|
|
1095 | struct ev_loop *loop = &default_loop_struct; |
|
|
1096 | #endif |
|
|
1097 | |
|
|
1098 | #if _WIN32 |
|
|
1099 | signal (signum, ev_sighandler); |
|
|
1100 | #endif |
|
|
1101 | |
|
|
1102 | signals [signum - 1].gotsig = 1; |
|
|
1103 | evpipe_write (EV_A_ &gotsig); |
|
|
1104 | } |
|
|
1105 | |
|
|
1106 | void noinline |
|
|
1107 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1108 | { |
|
|
1109 | WL w; |
|
|
1110 | |
|
|
1111 | #if EV_MULTIPLICITY |
|
|
1112 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1113 | #endif |
|
|
1114 | |
|
|
1115 | --signum; |
|
|
1116 | |
|
|
1117 | if (signum < 0 || signum >= signalmax) |
|
|
1118 | return; |
|
|
1119 | |
|
|
1120 | signals [signum].gotsig = 0; |
|
|
1121 | |
|
|
1122 | for (w = signals [signum].head; w; w = w->next) |
|
|
1123 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1124 | } |
|
|
1125 | |
|
|
1126 | /*****************************************************************************/ |
|
|
1127 | |
|
|
1128 | static WL childs [EV_PID_HASHSIZE]; |
679 | |
1129 | |
680 | #ifndef _WIN32 |
1130 | #ifndef _WIN32 |
681 | |
1131 | |
682 | static struct ev_signal childev; |
1132 | static ev_signal childev; |
|
|
1133 | |
|
|
1134 | #ifndef WIFCONTINUED |
|
|
1135 | # define WIFCONTINUED(status) 0 |
|
|
1136 | #endif |
|
|
1137 | |
|
|
1138 | void inline_speed |
|
|
1139 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1140 | { |
|
|
1141 | ev_child *w; |
|
|
1142 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1143 | |
|
|
1144 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1145 | { |
|
|
1146 | if ((w->pid == pid || !w->pid) |
|
|
1147 | && (!traced || (w->flags & 1))) |
|
|
1148 | { |
|
|
1149 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1150 | w->rpid = pid; |
|
|
1151 | w->rstatus = status; |
|
|
1152 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1153 | } |
|
|
1154 | } |
|
|
1155 | } |
683 | |
1156 | |
684 | #ifndef WCONTINUED |
1157 | #ifndef WCONTINUED |
685 | # define WCONTINUED 0 |
1158 | # define WCONTINUED 0 |
686 | #endif |
1159 | #endif |
687 | |
1160 | |
688 | static void |
1161 | static void |
689 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
690 | { |
|
|
691 | struct ev_child *w; |
|
|
692 | |
|
|
693 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
694 | if (w->pid == pid || !w->pid) |
|
|
695 | { |
|
|
696 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
697 | w->rpid = pid; |
|
|
698 | w->rstatus = status; |
|
|
699 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
700 | } |
|
|
701 | } |
|
|
702 | |
|
|
703 | static void |
|
|
704 | childcb (EV_P_ struct ev_signal *sw, int revents) |
1162 | childcb (EV_P_ ev_signal *sw, int revents) |
705 | { |
1163 | { |
706 | int pid, status; |
1164 | int pid, status; |
707 | |
1165 | |
|
|
1166 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
708 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1167 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
709 | { |
1168 | if (!WCONTINUED |
|
|
1169 | || errno != EINVAL |
|
|
1170 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1171 | return; |
|
|
1172 | |
710 | /* make sure we are called again until all childs have been reaped */ |
1173 | /* make sure we are called again until all children have been reaped */ |
|
|
1174 | /* we need to do it this way so that the callback gets called before we continue */ |
711 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1175 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
712 | |
1176 | |
713 | child_reap (EV_A_ sw, pid, pid, status); |
1177 | child_reap (EV_A_ pid, pid, status); |
|
|
1178 | if (EV_PID_HASHSIZE > 1) |
714 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
1179 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
715 | } |
|
|
716 | } |
1180 | } |
717 | |
1181 | |
718 | #endif |
1182 | #endif |
719 | |
1183 | |
720 | /*****************************************************************************/ |
1184 | /*****************************************************************************/ |
… | |
… | |
746 | { |
1210 | { |
747 | return EV_VERSION_MINOR; |
1211 | return EV_VERSION_MINOR; |
748 | } |
1212 | } |
749 | |
1213 | |
750 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1214 | /* return true if we are running with elevated privileges and should ignore env variables */ |
751 | static int |
1215 | int inline_size |
752 | enable_secure (void) |
1216 | enable_secure (void) |
753 | { |
1217 | { |
754 | #ifdef _WIN32 |
1218 | #ifdef _WIN32 |
755 | return 0; |
1219 | return 0; |
756 | #else |
1220 | #else |
… | |
… | |
758 | || getgid () != getegid (); |
1222 | || getgid () != getegid (); |
759 | #endif |
1223 | #endif |
760 | } |
1224 | } |
761 | |
1225 | |
762 | unsigned int |
1226 | unsigned int |
763 | ev_method (EV_P) |
1227 | ev_supported_backends (void) |
764 | { |
1228 | { |
765 | return method; |
1229 | unsigned int flags = 0; |
766 | } |
|
|
767 | |
1230 | |
768 | static void |
1231 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
1232 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1233 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1234 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1235 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1236 | |
|
|
1237 | return flags; |
|
|
1238 | } |
|
|
1239 | |
|
|
1240 | unsigned int |
|
|
1241 | ev_recommended_backends (void) |
|
|
1242 | { |
|
|
1243 | unsigned int flags = ev_supported_backends (); |
|
|
1244 | |
|
|
1245 | #ifndef __NetBSD__ |
|
|
1246 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1247 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1248 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1249 | #endif |
|
|
1250 | #ifdef __APPLE__ |
|
|
1251 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1252 | flags &= ~EVBACKEND_POLL; |
|
|
1253 | #endif |
|
|
1254 | |
|
|
1255 | return flags; |
|
|
1256 | } |
|
|
1257 | |
|
|
1258 | unsigned int |
|
|
1259 | ev_embeddable_backends (void) |
|
|
1260 | { |
|
|
1261 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1262 | |
|
|
1263 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1264 | /* please fix it and tell me how to detect the fix */ |
|
|
1265 | flags &= ~EVBACKEND_EPOLL; |
|
|
1266 | |
|
|
1267 | return flags; |
|
|
1268 | } |
|
|
1269 | |
|
|
1270 | unsigned int |
|
|
1271 | ev_backend (EV_P) |
|
|
1272 | { |
|
|
1273 | return backend; |
|
|
1274 | } |
|
|
1275 | |
|
|
1276 | unsigned int |
|
|
1277 | ev_loop_count (EV_P) |
|
|
1278 | { |
|
|
1279 | return loop_count; |
|
|
1280 | } |
|
|
1281 | |
|
|
1282 | void |
|
|
1283 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1284 | { |
|
|
1285 | io_blocktime = interval; |
|
|
1286 | } |
|
|
1287 | |
|
|
1288 | void |
|
|
1289 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1290 | { |
|
|
1291 | timeout_blocktime = interval; |
|
|
1292 | } |
|
|
1293 | |
|
|
1294 | static void noinline |
769 | loop_init (EV_P_ unsigned int flags) |
1295 | loop_init (EV_P_ unsigned int flags) |
770 | { |
1296 | { |
771 | if (!method) |
1297 | if (!backend) |
772 | { |
1298 | { |
773 | #if EV_USE_MONOTONIC |
1299 | #if EV_USE_MONOTONIC |
774 | { |
1300 | { |
775 | struct timespec ts; |
1301 | struct timespec ts; |
776 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1302 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
777 | have_monotonic = 1; |
1303 | have_monotonic = 1; |
778 | } |
1304 | } |
779 | #endif |
1305 | #endif |
780 | |
1306 | |
781 | ev_rt_now = ev_time (); |
1307 | ev_rt_now = ev_time (); |
782 | mn_now = get_clock (); |
1308 | mn_now = get_clock (); |
783 | now_floor = mn_now; |
1309 | now_floor = mn_now; |
784 | rtmn_diff = ev_rt_now - mn_now; |
1310 | rtmn_diff = ev_rt_now - mn_now; |
785 | |
1311 | |
786 | if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) |
1312 | io_blocktime = 0.; |
|
|
1313 | timeout_blocktime = 0.; |
|
|
1314 | backend = 0; |
|
|
1315 | backend_fd = -1; |
|
|
1316 | gotasync = 0; |
|
|
1317 | #if EV_USE_INOTIFY |
|
|
1318 | fs_fd = -2; |
|
|
1319 | #endif |
|
|
1320 | |
|
|
1321 | /* pid check not overridable via env */ |
|
|
1322 | #ifndef _WIN32 |
|
|
1323 | if (flags & EVFLAG_FORKCHECK) |
|
|
1324 | curpid = getpid (); |
|
|
1325 | #endif |
|
|
1326 | |
|
|
1327 | if (!(flags & EVFLAG_NOENV) |
|
|
1328 | && !enable_secure () |
|
|
1329 | && getenv ("LIBEV_FLAGS")) |
787 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1330 | flags = atoi (getenv ("LIBEV_FLAGS")); |
788 | |
1331 | |
789 | if (!(flags & 0x0000ffff)) |
1332 | if (!(flags & 0x0000ffffU)) |
790 | flags |= 0x0000ffff; |
1333 | flags |= ev_recommended_backends (); |
791 | |
1334 | |
792 | method = 0; |
|
|
793 | #if EV_USE_PORT |
1335 | #if EV_USE_PORT |
794 | if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); |
1336 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
795 | #endif |
1337 | #endif |
796 | #if EV_USE_KQUEUE |
1338 | #if EV_USE_KQUEUE |
797 | if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); |
1339 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
798 | #endif |
1340 | #endif |
799 | #if EV_USE_EPOLL |
1341 | #if EV_USE_EPOLL |
800 | if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); |
1342 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
801 | #endif |
1343 | #endif |
802 | #if EV_USE_POLL |
1344 | #if EV_USE_POLL |
803 | if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); |
1345 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
804 | #endif |
1346 | #endif |
805 | #if EV_USE_SELECT |
1347 | #if EV_USE_SELECT |
806 | if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); |
1348 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
807 | #endif |
1349 | #endif |
808 | |
1350 | |
809 | ev_init (&sigev, sigcb); |
1351 | ev_init (&pipeev, pipecb); |
810 | ev_set_priority (&sigev, EV_MAXPRI); |
1352 | ev_set_priority (&pipeev, EV_MAXPRI); |
811 | } |
1353 | } |
812 | } |
1354 | } |
813 | |
1355 | |
814 | static void |
1356 | static void noinline |
815 | loop_destroy (EV_P) |
1357 | loop_destroy (EV_P) |
816 | { |
1358 | { |
817 | int i; |
1359 | int i; |
818 | |
1360 | |
|
|
1361 | if (ev_is_active (&pipeev)) |
|
|
1362 | { |
|
|
1363 | ev_ref (EV_A); /* signal watcher */ |
|
|
1364 | ev_io_stop (EV_A_ &pipeev); |
|
|
1365 | |
|
|
1366 | #if EV_USE_EVENTFD |
|
|
1367 | if (evfd >= 0) |
|
|
1368 | close (evfd); |
|
|
1369 | #endif |
|
|
1370 | |
|
|
1371 | if (evpipe [0] >= 0) |
|
|
1372 | { |
|
|
1373 | close (evpipe [0]); |
|
|
1374 | close (evpipe [1]); |
|
|
1375 | } |
|
|
1376 | } |
|
|
1377 | |
|
|
1378 | #if EV_USE_INOTIFY |
|
|
1379 | if (fs_fd >= 0) |
|
|
1380 | close (fs_fd); |
|
|
1381 | #endif |
|
|
1382 | |
|
|
1383 | if (backend_fd >= 0) |
|
|
1384 | close (backend_fd); |
|
|
1385 | |
819 | #if EV_USE_PORT |
1386 | #if EV_USE_PORT |
820 | if (method == EVMETHOD_PORT ) port_destroy (EV_A); |
1387 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
821 | #endif |
1388 | #endif |
822 | #if EV_USE_KQUEUE |
1389 | #if EV_USE_KQUEUE |
823 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1390 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
824 | #endif |
1391 | #endif |
825 | #if EV_USE_EPOLL |
1392 | #if EV_USE_EPOLL |
826 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1393 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
827 | #endif |
1394 | #endif |
828 | #if EV_USE_POLL |
1395 | #if EV_USE_POLL |
829 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1396 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
830 | #endif |
1397 | #endif |
831 | #if EV_USE_SELECT |
1398 | #if EV_USE_SELECT |
832 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1399 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
833 | #endif |
1400 | #endif |
834 | |
1401 | |
835 | for (i = NUMPRI; i--; ) |
1402 | for (i = NUMPRI; i--; ) |
|
|
1403 | { |
836 | array_free (pending, [i]); |
1404 | array_free (pending, [i]); |
|
|
1405 | #if EV_IDLE_ENABLE |
|
|
1406 | array_free (idle, [i]); |
|
|
1407 | #endif |
|
|
1408 | } |
|
|
1409 | |
|
|
1410 | ev_free (anfds); anfdmax = 0; |
837 | |
1411 | |
838 | /* have to use the microsoft-never-gets-it-right macro */ |
1412 | /* have to use the microsoft-never-gets-it-right macro */ |
839 | array_free (fdchange, EMPTY0); |
1413 | array_free (fdchange, EMPTY); |
840 | array_free (timer, EMPTY0); |
1414 | array_free (timer, EMPTY); |
841 | #if EV_PERIODICS |
1415 | #if EV_PERIODIC_ENABLE |
842 | array_free (periodic, EMPTY0); |
1416 | array_free (periodic, EMPTY); |
843 | #endif |
1417 | #endif |
|
|
1418 | #if EV_FORK_ENABLE |
844 | array_free (idle, EMPTY0); |
1419 | array_free (fork, EMPTY); |
|
|
1420 | #endif |
845 | array_free (prepare, EMPTY0); |
1421 | array_free (prepare, EMPTY); |
846 | array_free (check, EMPTY0); |
1422 | array_free (check, EMPTY); |
|
|
1423 | #if EV_ASYNC_ENABLE |
|
|
1424 | array_free (async, EMPTY); |
|
|
1425 | #endif |
847 | |
1426 | |
848 | method = 0; |
1427 | backend = 0; |
849 | } |
1428 | } |
850 | |
1429 | |
851 | static void |
1430 | #if EV_USE_INOTIFY |
|
|
1431 | void inline_size infy_fork (EV_P); |
|
|
1432 | #endif |
|
|
1433 | |
|
|
1434 | void inline_size |
852 | loop_fork (EV_P) |
1435 | loop_fork (EV_P) |
853 | { |
1436 | { |
854 | #if EV_USE_PORT |
1437 | #if EV_USE_PORT |
855 | if (method == EVMETHOD_PORT ) port_fork (EV_A); |
1438 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
856 | #endif |
1439 | #endif |
857 | #if EV_USE_KQUEUE |
1440 | #if EV_USE_KQUEUE |
858 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1441 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
859 | #endif |
1442 | #endif |
860 | #if EV_USE_EPOLL |
1443 | #if EV_USE_EPOLL |
861 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1444 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
862 | #endif |
1445 | #endif |
|
|
1446 | #if EV_USE_INOTIFY |
|
|
1447 | infy_fork (EV_A); |
|
|
1448 | #endif |
863 | |
1449 | |
864 | if (ev_is_active (&sigev)) |
1450 | if (ev_is_active (&pipeev)) |
865 | { |
1451 | { |
866 | /* default loop */ |
1452 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1453 | /* while we modify the fd vars */ |
|
|
1454 | gotsig = 1; |
|
|
1455 | #if EV_ASYNC_ENABLE |
|
|
1456 | gotasync = 1; |
|
|
1457 | #endif |
867 | |
1458 | |
868 | ev_ref (EV_A); |
1459 | ev_ref (EV_A); |
869 | ev_io_stop (EV_A_ &sigev); |
1460 | ev_io_stop (EV_A_ &pipeev); |
|
|
1461 | |
|
|
1462 | #if EV_USE_EVENTFD |
|
|
1463 | if (evfd >= 0) |
|
|
1464 | close (evfd); |
|
|
1465 | #endif |
|
|
1466 | |
|
|
1467 | if (evpipe [0] >= 0) |
|
|
1468 | { |
870 | close (sigpipe [0]); |
1469 | close (evpipe [0]); |
871 | close (sigpipe [1]); |
1470 | close (evpipe [1]); |
|
|
1471 | } |
872 | |
1472 | |
873 | while (pipe (sigpipe)) |
|
|
874 | syserr ("(libev) error creating pipe"); |
|
|
875 | |
|
|
876 | siginit (EV_A); |
1473 | evpipe_init (EV_A); |
|
|
1474 | /* now iterate over everything, in case we missed something */ |
|
|
1475 | pipecb (EV_A_ &pipeev, EV_READ); |
877 | } |
1476 | } |
878 | |
1477 | |
879 | postfork = 0; |
1478 | postfork = 0; |
880 | } |
1479 | } |
881 | |
1480 | |
882 | #if EV_MULTIPLICITY |
1481 | #if EV_MULTIPLICITY |
|
|
1482 | |
883 | struct ev_loop * |
1483 | struct ev_loop * |
884 | ev_loop_new (unsigned int flags) |
1484 | ev_loop_new (unsigned int flags) |
885 | { |
1485 | { |
886 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1486 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
887 | |
1487 | |
888 | memset (loop, 0, sizeof (struct ev_loop)); |
1488 | memset (loop, 0, sizeof (struct ev_loop)); |
889 | |
1489 | |
890 | loop_init (EV_A_ flags); |
1490 | loop_init (EV_A_ flags); |
891 | |
1491 | |
892 | if (ev_method (EV_A)) |
1492 | if (ev_backend (EV_A)) |
893 | return loop; |
1493 | return loop; |
894 | |
1494 | |
895 | return 0; |
1495 | return 0; |
896 | } |
1496 | } |
897 | |
1497 | |
… | |
… | |
903 | } |
1503 | } |
904 | |
1504 | |
905 | void |
1505 | void |
906 | ev_loop_fork (EV_P) |
1506 | ev_loop_fork (EV_P) |
907 | { |
1507 | { |
908 | postfork = 1; |
1508 | postfork = 1; /* must be in line with ev_default_fork */ |
909 | } |
1509 | } |
910 | |
1510 | |
|
|
1511 | #if EV_VERIFY |
|
|
1512 | void noinline |
|
|
1513 | verify_watcher (EV_P_ W w) |
|
|
1514 | { |
|
|
1515 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1516 | |
|
|
1517 | if (w->pending) |
|
|
1518 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1519 | } |
|
|
1520 | |
|
|
1521 | static void noinline |
|
|
1522 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1523 | { |
|
|
1524 | int i; |
|
|
1525 | |
|
|
1526 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1527 | { |
|
|
1528 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1529 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1530 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1531 | |
|
|
1532 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1533 | } |
|
|
1534 | } |
|
|
1535 | |
|
|
1536 | static void noinline |
|
|
1537 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1538 | { |
|
|
1539 | while (cnt--) |
|
|
1540 | { |
|
|
1541 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1542 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1543 | } |
|
|
1544 | } |
|
|
1545 | #endif |
|
|
1546 | |
|
|
1547 | void |
|
|
1548 | ev_loop_verify (EV_P) |
|
|
1549 | { |
|
|
1550 | #if EV_VERIFY |
|
|
1551 | int i; |
|
|
1552 | WL w; |
|
|
1553 | |
|
|
1554 | assert (activecnt >= -1); |
|
|
1555 | |
|
|
1556 | assert (fdchangemax >= fdchangecnt); |
|
|
1557 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1558 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1559 | |
|
|
1560 | assert (anfdmax >= 0); |
|
|
1561 | for (i = 0; i < anfdmax; ++i) |
|
|
1562 | for (w = anfds [i].head; w; w = w->next) |
|
|
1563 | { |
|
|
1564 | verify_watcher (EV_A_ (W)w); |
|
|
1565 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1566 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1567 | } |
|
|
1568 | |
|
|
1569 | assert (timermax >= timercnt); |
|
|
1570 | verify_heap (EV_A_ timers, timercnt); |
|
|
1571 | |
|
|
1572 | #if EV_PERIODIC_ENABLE |
|
|
1573 | assert (periodicmax >= periodiccnt); |
|
|
1574 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1575 | #endif |
|
|
1576 | |
|
|
1577 | for (i = NUMPRI; i--; ) |
|
|
1578 | { |
|
|
1579 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1580 | #if EV_IDLE_ENABLE |
|
|
1581 | assert (idleall >= 0); |
|
|
1582 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1583 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1584 | #endif |
|
|
1585 | } |
|
|
1586 | |
|
|
1587 | #if EV_FORK_ENABLE |
|
|
1588 | assert (forkmax >= forkcnt); |
|
|
1589 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1590 | #endif |
|
|
1591 | |
|
|
1592 | #if EV_ASYNC_ENABLE |
|
|
1593 | assert (asyncmax >= asynccnt); |
|
|
1594 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1595 | #endif |
|
|
1596 | |
|
|
1597 | assert (preparemax >= preparecnt); |
|
|
1598 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1599 | |
|
|
1600 | assert (checkmax >= checkcnt); |
|
|
1601 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1602 | |
|
|
1603 | # if 0 |
|
|
1604 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1605 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
911 | #endif |
1606 | # endif |
|
|
1607 | #endif |
|
|
1608 | } |
|
|
1609 | |
|
|
1610 | #endif /* multiplicity */ |
912 | |
1611 | |
913 | #if EV_MULTIPLICITY |
1612 | #if EV_MULTIPLICITY |
914 | struct ev_loop * |
1613 | struct ev_loop * |
915 | ev_default_loop_init (unsigned int flags) |
1614 | ev_default_loop_init (unsigned int flags) |
916 | #else |
1615 | #else |
917 | int |
1616 | int |
918 | ev_default_loop (unsigned int flags) |
1617 | ev_default_loop (unsigned int flags) |
919 | #endif |
1618 | #endif |
920 | { |
1619 | { |
921 | if (sigpipe [0] == sigpipe [1]) |
|
|
922 | if (pipe (sigpipe)) |
|
|
923 | return 0; |
|
|
924 | |
|
|
925 | if (!ev_default_loop_ptr) |
1620 | if (!ev_default_loop_ptr) |
926 | { |
1621 | { |
927 | #if EV_MULTIPLICITY |
1622 | #if EV_MULTIPLICITY |
928 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1623 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
929 | #else |
1624 | #else |
930 | ev_default_loop_ptr = 1; |
1625 | ev_default_loop_ptr = 1; |
931 | #endif |
1626 | #endif |
932 | |
1627 | |
933 | loop_init (EV_A_ flags); |
1628 | loop_init (EV_A_ flags); |
934 | |
1629 | |
935 | if (ev_method (EV_A)) |
1630 | if (ev_backend (EV_A)) |
936 | { |
1631 | { |
937 | siginit (EV_A); |
|
|
938 | |
|
|
939 | #ifndef _WIN32 |
1632 | #ifndef _WIN32 |
940 | ev_signal_init (&childev, childcb, SIGCHLD); |
1633 | ev_signal_init (&childev, childcb, SIGCHLD); |
941 | ev_set_priority (&childev, EV_MAXPRI); |
1634 | ev_set_priority (&childev, EV_MAXPRI); |
942 | ev_signal_start (EV_A_ &childev); |
1635 | ev_signal_start (EV_A_ &childev); |
943 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1636 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
960 | #ifndef _WIN32 |
1653 | #ifndef _WIN32 |
961 | ev_ref (EV_A); /* child watcher */ |
1654 | ev_ref (EV_A); /* child watcher */ |
962 | ev_signal_stop (EV_A_ &childev); |
1655 | ev_signal_stop (EV_A_ &childev); |
963 | #endif |
1656 | #endif |
964 | |
1657 | |
965 | ev_ref (EV_A); /* signal watcher */ |
|
|
966 | ev_io_stop (EV_A_ &sigev); |
|
|
967 | |
|
|
968 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
969 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
970 | |
|
|
971 | loop_destroy (EV_A); |
1658 | loop_destroy (EV_A); |
972 | } |
1659 | } |
973 | |
1660 | |
974 | void |
1661 | void |
975 | ev_default_fork (void) |
1662 | ev_default_fork (void) |
976 | { |
1663 | { |
977 | #if EV_MULTIPLICITY |
1664 | #if EV_MULTIPLICITY |
978 | struct ev_loop *loop = ev_default_loop_ptr; |
1665 | struct ev_loop *loop = ev_default_loop_ptr; |
979 | #endif |
1666 | #endif |
980 | |
1667 | |
981 | if (method) |
1668 | if (backend) |
982 | postfork = 1; |
1669 | postfork = 1; /* must be in line with ev_loop_fork */ |
983 | } |
1670 | } |
984 | |
1671 | |
985 | /*****************************************************************************/ |
1672 | /*****************************************************************************/ |
986 | |
1673 | |
987 | static int |
1674 | void |
988 | any_pending (EV_P) |
1675 | ev_invoke (EV_P_ void *w, int revents) |
989 | { |
1676 | { |
990 | int pri; |
1677 | EV_CB_INVOKE ((W)w, revents); |
991 | |
|
|
992 | for (pri = NUMPRI; pri--; ) |
|
|
993 | if (pendingcnt [pri]) |
|
|
994 | return 1; |
|
|
995 | |
|
|
996 | return 0; |
|
|
997 | } |
1678 | } |
998 | |
1679 | |
999 | inline void |
1680 | void inline_speed |
1000 | call_pending (EV_P) |
1681 | call_pending (EV_P) |
1001 | { |
1682 | { |
1002 | int pri; |
1683 | int pri; |
1003 | |
1684 | |
1004 | for (pri = NUMPRI; pri--; ) |
1685 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1006 | { |
1687 | { |
1007 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1688 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1008 | |
1689 | |
1009 | if (expect_true (p->w)) |
1690 | if (expect_true (p->w)) |
1010 | { |
1691 | { |
|
|
1692 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1693 | |
1011 | p->w->pending = 0; |
1694 | p->w->pending = 0; |
1012 | EV_CB_INVOKE (p->w, p->events); |
1695 | EV_CB_INVOKE (p->w, p->events); |
|
|
1696 | EV_FREQUENT_CHECK; |
1013 | } |
1697 | } |
1014 | } |
1698 | } |
1015 | } |
1699 | } |
1016 | |
1700 | |
1017 | inline void |
1701 | #if EV_IDLE_ENABLE |
|
|
1702 | void inline_size |
|
|
1703 | idle_reify (EV_P) |
|
|
1704 | { |
|
|
1705 | if (expect_false (idleall)) |
|
|
1706 | { |
|
|
1707 | int pri; |
|
|
1708 | |
|
|
1709 | for (pri = NUMPRI; pri--; ) |
|
|
1710 | { |
|
|
1711 | if (pendingcnt [pri]) |
|
|
1712 | break; |
|
|
1713 | |
|
|
1714 | if (idlecnt [pri]) |
|
|
1715 | { |
|
|
1716 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1717 | break; |
|
|
1718 | } |
|
|
1719 | } |
|
|
1720 | } |
|
|
1721 | } |
|
|
1722 | #endif |
|
|
1723 | |
|
|
1724 | void inline_size |
1018 | timers_reify (EV_P) |
1725 | timers_reify (EV_P) |
1019 | { |
1726 | { |
|
|
1727 | EV_FREQUENT_CHECK; |
|
|
1728 | |
1020 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1729 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1021 | { |
1730 | { |
1022 | struct ev_timer *w = timers [0]; |
1731 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1023 | |
1732 | |
1024 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1733 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1025 | |
1734 | |
1026 | /* first reschedule or stop timer */ |
1735 | /* first reschedule or stop timer */ |
1027 | if (w->repeat) |
1736 | if (w->repeat) |
1028 | { |
1737 | { |
|
|
1738 | ev_at (w) += w->repeat; |
|
|
1739 | if (ev_at (w) < mn_now) |
|
|
1740 | ev_at (w) = mn_now; |
|
|
1741 | |
1029 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1742 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1030 | |
1743 | |
1031 | ((WT)w)->at += w->repeat; |
1744 | ANHE_at_cache (timers [HEAP0]); |
1032 | if (((WT)w)->at < mn_now) |
|
|
1033 | ((WT)w)->at = mn_now; |
|
|
1034 | |
|
|
1035 | downheap ((WT *)timers, timercnt, 0); |
1745 | downheap (timers, timercnt, HEAP0); |
1036 | } |
1746 | } |
1037 | else |
1747 | else |
1038 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1748 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1039 | |
1749 | |
|
|
1750 | EV_FREQUENT_CHECK; |
1040 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1751 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1041 | } |
1752 | } |
1042 | } |
1753 | } |
1043 | |
1754 | |
1044 | #if EV_PERIODICS |
1755 | #if EV_PERIODIC_ENABLE |
1045 | inline void |
1756 | void inline_size |
1046 | periodics_reify (EV_P) |
1757 | periodics_reify (EV_P) |
1047 | { |
1758 | { |
|
|
1759 | EV_FREQUENT_CHECK; |
|
|
1760 | |
1048 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1761 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1049 | { |
1762 | { |
1050 | struct ev_periodic *w = periodics [0]; |
1763 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1051 | |
1764 | |
1052 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1765 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1053 | |
1766 | |
1054 | /* first reschedule or stop timer */ |
1767 | /* first reschedule or stop timer */ |
1055 | if (w->reschedule_cb) |
1768 | if (w->reschedule_cb) |
1056 | { |
1769 | { |
1057 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1770 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1771 | |
1058 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1772 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1773 | |
|
|
1774 | ANHE_at_cache (periodics [HEAP0]); |
1059 | downheap ((WT *)periodics, periodiccnt, 0); |
1775 | downheap (periodics, periodiccnt, HEAP0); |
1060 | } |
1776 | } |
1061 | else if (w->interval) |
1777 | else if (w->interval) |
1062 | { |
1778 | { |
1063 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1779 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1064 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1780 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1781 | /* this might happen because of floating point inexactness */ |
|
|
1782 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1783 | { |
|
|
1784 | ev_at (w) += w->interval; |
|
|
1785 | |
|
|
1786 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1787 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1788 | /* has effectively asked to get triggered more often than possible */ |
|
|
1789 | if (ev_at (w) < ev_rt_now) |
|
|
1790 | ev_at (w) = ev_rt_now; |
|
|
1791 | } |
|
|
1792 | |
|
|
1793 | ANHE_at_cache (periodics [HEAP0]); |
1065 | downheap ((WT *)periodics, periodiccnt, 0); |
1794 | downheap (periodics, periodiccnt, HEAP0); |
1066 | } |
1795 | } |
1067 | else |
1796 | else |
1068 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1797 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1069 | |
1798 | |
|
|
1799 | EV_FREQUENT_CHECK; |
1070 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1800 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1071 | } |
1801 | } |
1072 | } |
1802 | } |
1073 | |
1803 | |
1074 | static void |
1804 | static void noinline |
1075 | periodics_reschedule (EV_P) |
1805 | periodics_reschedule (EV_P) |
1076 | { |
1806 | { |
1077 | int i; |
1807 | int i; |
1078 | |
1808 | |
1079 | /* adjust periodics after time jump */ |
1809 | /* adjust periodics after time jump */ |
1080 | for (i = 0; i < periodiccnt; ++i) |
1810 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1081 | { |
1811 | { |
1082 | struct ev_periodic *w = periodics [i]; |
1812 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1083 | |
1813 | |
1084 | if (w->reschedule_cb) |
1814 | if (w->reschedule_cb) |
1085 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1815 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1086 | else if (w->interval) |
1816 | else if (w->interval) |
1087 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1817 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1818 | |
|
|
1819 | ANHE_at_cache (periodics [i]); |
|
|
1820 | } |
|
|
1821 | |
|
|
1822 | reheap (periodics, periodiccnt); |
|
|
1823 | } |
|
|
1824 | #endif |
|
|
1825 | |
|
|
1826 | void inline_speed |
|
|
1827 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1828 | { |
|
|
1829 | int i; |
|
|
1830 | |
|
|
1831 | #if EV_USE_MONOTONIC |
|
|
1832 | if (expect_true (have_monotonic)) |
1088 | } |
1833 | { |
|
|
1834 | ev_tstamp odiff = rtmn_diff; |
1089 | |
1835 | |
1090 | /* now rebuild the heap */ |
|
|
1091 | for (i = periodiccnt >> 1; i--; ) |
|
|
1092 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1093 | } |
|
|
1094 | #endif |
|
|
1095 | |
|
|
1096 | inline int |
|
|
1097 | time_update_monotonic (EV_P) |
|
|
1098 | { |
|
|
1099 | mn_now = get_clock (); |
1836 | mn_now = get_clock (); |
1100 | |
1837 | |
|
|
1838 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1839 | /* interpolate in the meantime */ |
1101 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1840 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1102 | { |
1841 | { |
1103 | ev_rt_now = rtmn_diff + mn_now; |
1842 | ev_rt_now = rtmn_diff + mn_now; |
1104 | return 0; |
1843 | return; |
1105 | } |
1844 | } |
1106 | else |
1845 | |
1107 | { |
|
|
1108 | now_floor = mn_now; |
1846 | now_floor = mn_now; |
1109 | ev_rt_now = ev_time (); |
1847 | ev_rt_now = ev_time (); |
1110 | return 1; |
|
|
1111 | } |
|
|
1112 | } |
|
|
1113 | |
1848 | |
1114 | inline void |
1849 | /* loop a few times, before making important decisions. |
1115 | time_update (EV_P) |
1850 | * on the choice of "4": one iteration isn't enough, |
1116 | { |
1851 | * in case we get preempted during the calls to |
1117 | int i; |
1852 | * ev_time and get_clock. a second call is almost guaranteed |
1118 | |
1853 | * to succeed in that case, though. and looping a few more times |
1119 | #if EV_USE_MONOTONIC |
1854 | * doesn't hurt either as we only do this on time-jumps or |
1120 | if (expect_true (have_monotonic)) |
1855 | * in the unlikely event of having been preempted here. |
1121 | { |
1856 | */ |
1122 | if (time_update_monotonic (EV_A)) |
1857 | for (i = 4; --i; ) |
1123 | { |
1858 | { |
1124 | ev_tstamp odiff = rtmn_diff; |
1859 | rtmn_diff = ev_rt_now - mn_now; |
1125 | |
1860 | |
1126 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1861 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
|
|
1862 | return; /* all is well */ |
|
|
1863 | |
|
|
1864 | ev_rt_now = ev_time (); |
|
|
1865 | mn_now = get_clock (); |
|
|
1866 | now_floor = mn_now; |
|
|
1867 | } |
|
|
1868 | |
|
|
1869 | # if EV_PERIODIC_ENABLE |
|
|
1870 | periodics_reschedule (EV_A); |
|
|
1871 | # endif |
|
|
1872 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1873 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1874 | } |
|
|
1875 | else |
|
|
1876 | #endif |
|
|
1877 | { |
|
|
1878 | ev_rt_now = ev_time (); |
|
|
1879 | |
|
|
1880 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1881 | { |
|
|
1882 | #if EV_PERIODIC_ENABLE |
|
|
1883 | periodics_reschedule (EV_A); |
|
|
1884 | #endif |
|
|
1885 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1886 | for (i = 0; i < timercnt; ++i) |
1127 | { |
1887 | { |
1128 | rtmn_diff = ev_rt_now - mn_now; |
1888 | ANHE *he = timers + i + HEAP0; |
1129 | |
1889 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
1130 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1890 | ANHE_at_cache (*he); |
1131 | return; /* all is well */ |
|
|
1132 | |
|
|
1133 | ev_rt_now = ev_time (); |
|
|
1134 | mn_now = get_clock (); |
|
|
1135 | now_floor = mn_now; |
|
|
1136 | } |
1891 | } |
1137 | |
|
|
1138 | # if EV_PERIODICS |
|
|
1139 | periodics_reschedule (EV_A); |
|
|
1140 | # endif |
|
|
1141 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1142 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1143 | } |
1892 | } |
1144 | } |
|
|
1145 | else |
|
|
1146 | #endif |
|
|
1147 | { |
|
|
1148 | ev_rt_now = ev_time (); |
|
|
1149 | |
|
|
1150 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1151 | { |
|
|
1152 | #if EV_PERIODICS |
|
|
1153 | periodics_reschedule (EV_A); |
|
|
1154 | #endif |
|
|
1155 | |
|
|
1156 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1157 | for (i = 0; i < timercnt; ++i) |
|
|
1158 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1159 | } |
|
|
1160 | |
1893 | |
1161 | mn_now = ev_rt_now; |
1894 | mn_now = ev_rt_now; |
1162 | } |
1895 | } |
1163 | } |
1896 | } |
1164 | |
1897 | |
… | |
… | |
1177 | static int loop_done; |
1910 | static int loop_done; |
1178 | |
1911 | |
1179 | void |
1912 | void |
1180 | ev_loop (EV_P_ int flags) |
1913 | ev_loop (EV_P_ int flags) |
1181 | { |
1914 | { |
1182 | double block; |
1915 | loop_done = EVUNLOOP_CANCEL; |
1183 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
|
|
1184 | |
1916 | |
1185 | while (activecnt) |
1917 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1918 | |
|
|
1919 | do |
1186 | { |
1920 | { |
|
|
1921 | #if EV_VERIFY >= 2 |
|
|
1922 | ev_loop_verify (EV_A); |
|
|
1923 | #endif |
|
|
1924 | |
|
|
1925 | #ifndef _WIN32 |
|
|
1926 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1927 | if (expect_false (getpid () != curpid)) |
|
|
1928 | { |
|
|
1929 | curpid = getpid (); |
|
|
1930 | postfork = 1; |
|
|
1931 | } |
|
|
1932 | #endif |
|
|
1933 | |
|
|
1934 | #if EV_FORK_ENABLE |
|
|
1935 | /* we might have forked, so queue fork handlers */ |
|
|
1936 | if (expect_false (postfork)) |
|
|
1937 | if (forkcnt) |
|
|
1938 | { |
|
|
1939 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1940 | call_pending (EV_A); |
|
|
1941 | } |
|
|
1942 | #endif |
|
|
1943 | |
1187 | /* queue check watchers (and execute them) */ |
1944 | /* queue prepare watchers (and execute them) */ |
1188 | if (expect_false (preparecnt)) |
1945 | if (expect_false (preparecnt)) |
1189 | { |
1946 | { |
1190 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1947 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1191 | call_pending (EV_A); |
1948 | call_pending (EV_A); |
1192 | } |
1949 | } |
1193 | |
1950 | |
|
|
1951 | if (expect_false (!activecnt)) |
|
|
1952 | break; |
|
|
1953 | |
1194 | /* we might have forked, so reify kernel state if necessary */ |
1954 | /* we might have forked, so reify kernel state if necessary */ |
1195 | if (expect_false (postfork)) |
1955 | if (expect_false (postfork)) |
1196 | loop_fork (EV_A); |
1956 | loop_fork (EV_A); |
1197 | |
1957 | |
1198 | /* update fd-related kernel structures */ |
1958 | /* update fd-related kernel structures */ |
1199 | fd_reify (EV_A); |
1959 | fd_reify (EV_A); |
1200 | |
1960 | |
1201 | /* calculate blocking time */ |
1961 | /* calculate blocking time */ |
|
|
1962 | { |
|
|
1963 | ev_tstamp waittime = 0.; |
|
|
1964 | ev_tstamp sleeptime = 0.; |
1202 | |
1965 | |
1203 | /* we only need this for !monotonic clock or timers, but as we basically |
1966 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1204 | always have timers, we just calculate it always */ |
|
|
1205 | #if EV_USE_MONOTONIC |
|
|
1206 | if (expect_true (have_monotonic)) |
|
|
1207 | time_update_monotonic (EV_A); |
|
|
1208 | else |
|
|
1209 | #endif |
|
|
1210 | { |
1967 | { |
1211 | ev_rt_now = ev_time (); |
1968 | /* update time to cancel out callback processing overhead */ |
1212 | mn_now = ev_rt_now; |
1969 | time_update (EV_A_ 1e100); |
1213 | } |
|
|
1214 | |
1970 | |
1215 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1216 | block = 0.; |
|
|
1217 | else |
|
|
1218 | { |
|
|
1219 | block = MAX_BLOCKTIME; |
1971 | waittime = MAX_BLOCKTIME; |
1220 | |
1972 | |
1221 | if (timercnt) |
1973 | if (timercnt) |
1222 | { |
1974 | { |
1223 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1975 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1224 | if (block > to) block = to; |
1976 | if (waittime > to) waittime = to; |
1225 | } |
1977 | } |
1226 | |
1978 | |
1227 | #if EV_PERIODICS |
1979 | #if EV_PERIODIC_ENABLE |
1228 | if (periodiccnt) |
1980 | if (periodiccnt) |
1229 | { |
1981 | { |
1230 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1982 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1231 | if (block > to) block = to; |
1983 | if (waittime > to) waittime = to; |
1232 | } |
1984 | } |
1233 | #endif |
1985 | #endif |
1234 | |
1986 | |
1235 | if (expect_false (block < 0.)) block = 0.; |
1987 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1988 | waittime = timeout_blocktime; |
|
|
1989 | |
|
|
1990 | sleeptime = waittime - backend_fudge; |
|
|
1991 | |
|
|
1992 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1993 | sleeptime = io_blocktime; |
|
|
1994 | |
|
|
1995 | if (sleeptime) |
|
|
1996 | { |
|
|
1997 | ev_sleep (sleeptime); |
|
|
1998 | waittime -= sleeptime; |
|
|
1999 | } |
1236 | } |
2000 | } |
1237 | |
2001 | |
1238 | method_poll (EV_A_ block); |
2002 | ++loop_count; |
|
|
2003 | backend_poll (EV_A_ waittime); |
1239 | |
2004 | |
1240 | /* update ev_rt_now, do magic */ |
2005 | /* update ev_rt_now, do magic */ |
1241 | time_update (EV_A); |
2006 | time_update (EV_A_ waittime + sleeptime); |
|
|
2007 | } |
1242 | |
2008 | |
1243 | /* queue pending timers and reschedule them */ |
2009 | /* queue pending timers and reschedule them */ |
1244 | timers_reify (EV_A); /* relative timers called last */ |
2010 | timers_reify (EV_A); /* relative timers called last */ |
1245 | #if EV_PERIODICS |
2011 | #if EV_PERIODIC_ENABLE |
1246 | periodics_reify (EV_A); /* absolute timers called first */ |
2012 | periodics_reify (EV_A); /* absolute timers called first */ |
1247 | #endif |
2013 | #endif |
1248 | |
2014 | |
|
|
2015 | #if EV_IDLE_ENABLE |
1249 | /* queue idle watchers unless io or timers are pending */ |
2016 | /* queue idle watchers unless other events are pending */ |
1250 | if (idlecnt && !any_pending (EV_A)) |
2017 | idle_reify (EV_A); |
1251 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
2018 | #endif |
1252 | |
2019 | |
1253 | /* queue check watchers, to be executed first */ |
2020 | /* queue check watchers, to be executed first */ |
1254 | if (expect_false (checkcnt)) |
2021 | if (expect_false (checkcnt)) |
1255 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2022 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1256 | |
2023 | |
1257 | call_pending (EV_A); |
2024 | call_pending (EV_A); |
1258 | |
|
|
1259 | if (expect_false (loop_done)) |
|
|
1260 | break; |
|
|
1261 | } |
2025 | } |
|
|
2026 | while (expect_true ( |
|
|
2027 | activecnt |
|
|
2028 | && !loop_done |
|
|
2029 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2030 | )); |
1262 | |
2031 | |
1263 | if (loop_done != 2) |
2032 | if (loop_done == EVUNLOOP_ONE) |
1264 | loop_done = 0; |
2033 | loop_done = EVUNLOOP_CANCEL; |
1265 | } |
2034 | } |
1266 | |
2035 | |
1267 | void |
2036 | void |
1268 | ev_unloop (EV_P_ int how) |
2037 | ev_unloop (EV_P_ int how) |
1269 | { |
2038 | { |
1270 | loop_done = how; |
2039 | loop_done = how; |
1271 | } |
2040 | } |
1272 | |
2041 | |
1273 | /*****************************************************************************/ |
2042 | /*****************************************************************************/ |
1274 | |
2043 | |
1275 | inline void |
2044 | void inline_size |
1276 | wlist_add (WL *head, WL elem) |
2045 | wlist_add (WL *head, WL elem) |
1277 | { |
2046 | { |
1278 | elem->next = *head; |
2047 | elem->next = *head; |
1279 | *head = elem; |
2048 | *head = elem; |
1280 | } |
2049 | } |
1281 | |
2050 | |
1282 | inline void |
2051 | void inline_size |
1283 | wlist_del (WL *head, WL elem) |
2052 | wlist_del (WL *head, WL elem) |
1284 | { |
2053 | { |
1285 | while (*head) |
2054 | while (*head) |
1286 | { |
2055 | { |
1287 | if (*head == elem) |
2056 | if (*head == elem) |
… | |
… | |
1292 | |
2061 | |
1293 | head = &(*head)->next; |
2062 | head = &(*head)->next; |
1294 | } |
2063 | } |
1295 | } |
2064 | } |
1296 | |
2065 | |
1297 | inline void |
2066 | void inline_speed |
1298 | ev_clear_pending (EV_P_ W w) |
2067 | clear_pending (EV_P_ W w) |
1299 | { |
2068 | { |
1300 | if (w->pending) |
2069 | if (w->pending) |
1301 | { |
2070 | { |
1302 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2071 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1303 | w->pending = 0; |
2072 | w->pending = 0; |
1304 | } |
2073 | } |
1305 | } |
2074 | } |
1306 | |
2075 | |
1307 | inline void |
2076 | int |
|
|
2077 | ev_clear_pending (EV_P_ void *w) |
|
|
2078 | { |
|
|
2079 | W w_ = (W)w; |
|
|
2080 | int pending = w_->pending; |
|
|
2081 | |
|
|
2082 | if (expect_true (pending)) |
|
|
2083 | { |
|
|
2084 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2085 | w_->pending = 0; |
|
|
2086 | p->w = 0; |
|
|
2087 | return p->events; |
|
|
2088 | } |
|
|
2089 | else |
|
|
2090 | return 0; |
|
|
2091 | } |
|
|
2092 | |
|
|
2093 | void inline_size |
|
|
2094 | pri_adjust (EV_P_ W w) |
|
|
2095 | { |
|
|
2096 | int pri = w->priority; |
|
|
2097 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
2098 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
2099 | w->priority = pri; |
|
|
2100 | } |
|
|
2101 | |
|
|
2102 | void inline_speed |
1308 | ev_start (EV_P_ W w, int active) |
2103 | ev_start (EV_P_ W w, int active) |
1309 | { |
2104 | { |
1310 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
2105 | pri_adjust (EV_A_ w); |
1311 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1312 | |
|
|
1313 | w->active = active; |
2106 | w->active = active; |
1314 | ev_ref (EV_A); |
2107 | ev_ref (EV_A); |
1315 | } |
2108 | } |
1316 | |
2109 | |
1317 | inline void |
2110 | void inline_size |
1318 | ev_stop (EV_P_ W w) |
2111 | ev_stop (EV_P_ W w) |
1319 | { |
2112 | { |
1320 | ev_unref (EV_A); |
2113 | ev_unref (EV_A); |
1321 | w->active = 0; |
2114 | w->active = 0; |
1322 | } |
2115 | } |
1323 | |
2116 | |
1324 | /*****************************************************************************/ |
2117 | /*****************************************************************************/ |
1325 | |
2118 | |
1326 | void |
2119 | void noinline |
1327 | ev_io_start (EV_P_ struct ev_io *w) |
2120 | ev_io_start (EV_P_ ev_io *w) |
1328 | { |
2121 | { |
1329 | int fd = w->fd; |
2122 | int fd = w->fd; |
1330 | |
2123 | |
1331 | if (expect_false (ev_is_active (w))) |
2124 | if (expect_false (ev_is_active (w))) |
1332 | return; |
2125 | return; |
1333 | |
2126 | |
1334 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2127 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1335 | |
2128 | |
|
|
2129 | EV_FREQUENT_CHECK; |
|
|
2130 | |
1336 | ev_start (EV_A_ (W)w, 1); |
2131 | ev_start (EV_A_ (W)w, 1); |
1337 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2132 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1338 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2133 | wlist_add (&anfds[fd].head, (WL)w); |
1339 | |
2134 | |
1340 | fd_change (EV_A_ fd); |
2135 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
1341 | } |
2136 | w->events &= ~EV_IOFDSET; |
1342 | |
2137 | |
1343 | void |
2138 | EV_FREQUENT_CHECK; |
|
|
2139 | } |
|
|
2140 | |
|
|
2141 | void noinline |
1344 | ev_io_stop (EV_P_ struct ev_io *w) |
2142 | ev_io_stop (EV_P_ ev_io *w) |
1345 | { |
2143 | { |
1346 | ev_clear_pending (EV_A_ (W)w); |
2144 | clear_pending (EV_A_ (W)w); |
1347 | if (expect_false (!ev_is_active (w))) |
2145 | if (expect_false (!ev_is_active (w))) |
1348 | return; |
2146 | return; |
1349 | |
2147 | |
1350 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2148 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1351 | |
2149 | |
|
|
2150 | EV_FREQUENT_CHECK; |
|
|
2151 | |
1352 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2152 | wlist_del (&anfds[w->fd].head, (WL)w); |
1353 | ev_stop (EV_A_ (W)w); |
2153 | ev_stop (EV_A_ (W)w); |
1354 | |
2154 | |
1355 | fd_change (EV_A_ w->fd); |
2155 | fd_change (EV_A_ w->fd, 1); |
1356 | } |
|
|
1357 | |
2156 | |
1358 | void |
2157 | EV_FREQUENT_CHECK; |
|
|
2158 | } |
|
|
2159 | |
|
|
2160 | void noinline |
1359 | ev_timer_start (EV_P_ struct ev_timer *w) |
2161 | ev_timer_start (EV_P_ ev_timer *w) |
1360 | { |
2162 | { |
1361 | if (expect_false (ev_is_active (w))) |
2163 | if (expect_false (ev_is_active (w))) |
1362 | return; |
2164 | return; |
1363 | |
2165 | |
1364 | ((WT)w)->at += mn_now; |
2166 | ev_at (w) += mn_now; |
1365 | |
2167 | |
1366 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2168 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1367 | |
2169 | |
|
|
2170 | EV_FREQUENT_CHECK; |
|
|
2171 | |
|
|
2172 | ++timercnt; |
1368 | ev_start (EV_A_ (W)w, ++timercnt); |
2173 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1369 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
2174 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1370 | timers [timercnt - 1] = w; |
2175 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1371 | upheap ((WT *)timers, timercnt - 1); |
2176 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2177 | upheap (timers, ev_active (w)); |
1372 | |
2178 | |
|
|
2179 | EV_FREQUENT_CHECK; |
|
|
2180 | |
1373 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2181 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1374 | } |
2182 | } |
1375 | |
2183 | |
1376 | void |
2184 | void noinline |
1377 | ev_timer_stop (EV_P_ struct ev_timer *w) |
2185 | ev_timer_stop (EV_P_ ev_timer *w) |
1378 | { |
2186 | { |
1379 | ev_clear_pending (EV_A_ (W)w); |
2187 | clear_pending (EV_A_ (W)w); |
1380 | if (expect_false (!ev_is_active (w))) |
2188 | if (expect_false (!ev_is_active (w))) |
1381 | return; |
2189 | return; |
1382 | |
2190 | |
|
|
2191 | EV_FREQUENT_CHECK; |
|
|
2192 | |
|
|
2193 | { |
|
|
2194 | int active = ev_active (w); |
|
|
2195 | |
1383 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2196 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
1384 | |
2197 | |
|
|
2198 | --timercnt; |
|
|
2199 | |
1385 | if (expect_true (((W)w)->active < timercnt--)) |
2200 | if (expect_true (active < timercnt + HEAP0)) |
1386 | { |
2201 | { |
1387 | timers [((W)w)->active - 1] = timers [timercnt]; |
2202 | timers [active] = timers [timercnt + HEAP0]; |
1388 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2203 | adjustheap (timers, timercnt, active); |
1389 | } |
2204 | } |
|
|
2205 | } |
1390 | |
2206 | |
1391 | ((WT)w)->at -= mn_now; |
2207 | EV_FREQUENT_CHECK; |
|
|
2208 | |
|
|
2209 | ev_at (w) -= mn_now; |
1392 | |
2210 | |
1393 | ev_stop (EV_A_ (W)w); |
2211 | ev_stop (EV_A_ (W)w); |
1394 | } |
2212 | } |
1395 | |
2213 | |
1396 | void |
2214 | void noinline |
1397 | ev_timer_again (EV_P_ struct ev_timer *w) |
2215 | ev_timer_again (EV_P_ ev_timer *w) |
1398 | { |
2216 | { |
|
|
2217 | EV_FREQUENT_CHECK; |
|
|
2218 | |
1399 | if (ev_is_active (w)) |
2219 | if (ev_is_active (w)) |
1400 | { |
2220 | { |
1401 | if (w->repeat) |
2221 | if (w->repeat) |
1402 | { |
2222 | { |
1403 | ((WT)w)->at = mn_now + w->repeat; |
2223 | ev_at (w) = mn_now + w->repeat; |
|
|
2224 | ANHE_at_cache (timers [ev_active (w)]); |
1404 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2225 | adjustheap (timers, timercnt, ev_active (w)); |
1405 | } |
2226 | } |
1406 | else |
2227 | else |
1407 | ev_timer_stop (EV_A_ w); |
2228 | ev_timer_stop (EV_A_ w); |
1408 | } |
2229 | } |
1409 | else if (w->repeat) |
2230 | else if (w->repeat) |
1410 | { |
2231 | { |
1411 | w->at = w->repeat; |
2232 | ev_at (w) = w->repeat; |
1412 | ev_timer_start (EV_A_ w); |
2233 | ev_timer_start (EV_A_ w); |
1413 | } |
2234 | } |
1414 | } |
|
|
1415 | |
2235 | |
|
|
2236 | EV_FREQUENT_CHECK; |
|
|
2237 | } |
|
|
2238 | |
1416 | #if EV_PERIODICS |
2239 | #if EV_PERIODIC_ENABLE |
1417 | void |
2240 | void noinline |
1418 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
2241 | ev_periodic_start (EV_P_ ev_periodic *w) |
1419 | { |
2242 | { |
1420 | if (expect_false (ev_is_active (w))) |
2243 | if (expect_false (ev_is_active (w))) |
1421 | return; |
2244 | return; |
1422 | |
2245 | |
1423 | if (w->reschedule_cb) |
2246 | if (w->reschedule_cb) |
1424 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2247 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1425 | else if (w->interval) |
2248 | else if (w->interval) |
1426 | { |
2249 | { |
1427 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2250 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1428 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2251 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1429 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2252 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1430 | } |
2253 | } |
|
|
2254 | else |
|
|
2255 | ev_at (w) = w->offset; |
1431 | |
2256 | |
|
|
2257 | EV_FREQUENT_CHECK; |
|
|
2258 | |
|
|
2259 | ++periodiccnt; |
1432 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2260 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1433 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2261 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1434 | periodics [periodiccnt - 1] = w; |
2262 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1435 | upheap ((WT *)periodics, periodiccnt - 1); |
2263 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2264 | upheap (periodics, ev_active (w)); |
1436 | |
2265 | |
|
|
2266 | EV_FREQUENT_CHECK; |
|
|
2267 | |
1437 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2268 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1438 | } |
2269 | } |
1439 | |
2270 | |
1440 | void |
2271 | void noinline |
1441 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
2272 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1442 | { |
2273 | { |
1443 | ev_clear_pending (EV_A_ (W)w); |
2274 | clear_pending (EV_A_ (W)w); |
1444 | if (expect_false (!ev_is_active (w))) |
2275 | if (expect_false (!ev_is_active (w))) |
1445 | return; |
2276 | return; |
1446 | |
2277 | |
|
|
2278 | EV_FREQUENT_CHECK; |
|
|
2279 | |
|
|
2280 | { |
|
|
2281 | int active = ev_active (w); |
|
|
2282 | |
1447 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2283 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
1448 | |
2284 | |
|
|
2285 | --periodiccnt; |
|
|
2286 | |
1449 | if (expect_true (((W)w)->active < periodiccnt--)) |
2287 | if (expect_true (active < periodiccnt + HEAP0)) |
1450 | { |
2288 | { |
1451 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
2289 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1452 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
2290 | adjustheap (periodics, periodiccnt, active); |
1453 | } |
2291 | } |
|
|
2292 | } |
|
|
2293 | |
|
|
2294 | EV_FREQUENT_CHECK; |
1454 | |
2295 | |
1455 | ev_stop (EV_A_ (W)w); |
2296 | ev_stop (EV_A_ (W)w); |
1456 | } |
2297 | } |
1457 | |
2298 | |
1458 | void |
2299 | void noinline |
1459 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
2300 | ev_periodic_again (EV_P_ ev_periodic *w) |
1460 | { |
2301 | { |
1461 | /* TODO: use adjustheap and recalculation */ |
2302 | /* TODO: use adjustheap and recalculation */ |
1462 | ev_periodic_stop (EV_A_ w); |
2303 | ev_periodic_stop (EV_A_ w); |
1463 | ev_periodic_start (EV_A_ w); |
2304 | ev_periodic_start (EV_A_ w); |
1464 | } |
2305 | } |
1465 | #endif |
2306 | #endif |
1466 | |
2307 | |
1467 | void |
2308 | #ifndef SA_RESTART |
1468 | ev_idle_start (EV_P_ struct ev_idle *w) |
2309 | # define SA_RESTART 0 |
|
|
2310 | #endif |
|
|
2311 | |
|
|
2312 | void noinline |
|
|
2313 | ev_signal_start (EV_P_ ev_signal *w) |
1469 | { |
2314 | { |
|
|
2315 | #if EV_MULTIPLICITY |
|
|
2316 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2317 | #endif |
1470 | if (expect_false (ev_is_active (w))) |
2318 | if (expect_false (ev_is_active (w))) |
1471 | return; |
2319 | return; |
1472 | |
2320 | |
1473 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1474 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1475 | idles [idlecnt - 1] = w; |
|
|
1476 | } |
|
|
1477 | |
|
|
1478 | void |
|
|
1479 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1480 | { |
|
|
1481 | ev_clear_pending (EV_A_ (W)w); |
|
|
1482 | if (expect_false (!ev_is_active (w))) |
|
|
1483 | return; |
|
|
1484 | |
|
|
1485 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1486 | ev_stop (EV_A_ (W)w); |
|
|
1487 | } |
|
|
1488 | |
|
|
1489 | void |
|
|
1490 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1491 | { |
|
|
1492 | if (expect_false (ev_is_active (w))) |
|
|
1493 | return; |
|
|
1494 | |
|
|
1495 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1496 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1497 | prepares [preparecnt - 1] = w; |
|
|
1498 | } |
|
|
1499 | |
|
|
1500 | void |
|
|
1501 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1502 | { |
|
|
1503 | ev_clear_pending (EV_A_ (W)w); |
|
|
1504 | if (expect_false (!ev_is_active (w))) |
|
|
1505 | return; |
|
|
1506 | |
|
|
1507 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1508 | ev_stop (EV_A_ (W)w); |
|
|
1509 | } |
|
|
1510 | |
|
|
1511 | void |
|
|
1512 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1513 | { |
|
|
1514 | if (expect_false (ev_is_active (w))) |
|
|
1515 | return; |
|
|
1516 | |
|
|
1517 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1518 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1519 | checks [checkcnt - 1] = w; |
|
|
1520 | } |
|
|
1521 | |
|
|
1522 | void |
|
|
1523 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1524 | { |
|
|
1525 | ev_clear_pending (EV_A_ (W)w); |
|
|
1526 | if (expect_false (!ev_is_active (w))) |
|
|
1527 | return; |
|
|
1528 | |
|
|
1529 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1530 | ev_stop (EV_A_ (W)w); |
|
|
1531 | } |
|
|
1532 | |
|
|
1533 | #ifndef SA_RESTART |
|
|
1534 | # define SA_RESTART 0 |
|
|
1535 | #endif |
|
|
1536 | |
|
|
1537 | void |
|
|
1538 | ev_signal_start (EV_P_ struct ev_signal *w) |
|
|
1539 | { |
|
|
1540 | #if EV_MULTIPLICITY |
|
|
1541 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1542 | #endif |
|
|
1543 | if (expect_false (ev_is_active (w))) |
|
|
1544 | return; |
|
|
1545 | |
|
|
1546 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2321 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1547 | |
2322 | |
|
|
2323 | evpipe_init (EV_A); |
|
|
2324 | |
|
|
2325 | EV_FREQUENT_CHECK; |
|
|
2326 | |
|
|
2327 | { |
|
|
2328 | #ifndef _WIN32 |
|
|
2329 | sigset_t full, prev; |
|
|
2330 | sigfillset (&full); |
|
|
2331 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2332 | #endif |
|
|
2333 | |
|
|
2334 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2335 | |
|
|
2336 | #ifndef _WIN32 |
|
|
2337 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2338 | #endif |
|
|
2339 | } |
|
|
2340 | |
1548 | ev_start (EV_A_ (W)w, 1); |
2341 | ev_start (EV_A_ (W)w, 1); |
1549 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1550 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2342 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1551 | |
2343 | |
1552 | if (!((WL)w)->next) |
2344 | if (!((WL)w)->next) |
1553 | { |
2345 | { |
1554 | #if _WIN32 |
2346 | #if _WIN32 |
1555 | signal (w->signum, sighandler); |
2347 | signal (w->signum, ev_sighandler); |
1556 | #else |
2348 | #else |
1557 | struct sigaction sa; |
2349 | struct sigaction sa; |
1558 | sa.sa_handler = sighandler; |
2350 | sa.sa_handler = ev_sighandler; |
1559 | sigfillset (&sa.sa_mask); |
2351 | sigfillset (&sa.sa_mask); |
1560 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2352 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1561 | sigaction (w->signum, &sa, 0); |
2353 | sigaction (w->signum, &sa, 0); |
1562 | #endif |
2354 | #endif |
1563 | } |
2355 | } |
1564 | } |
|
|
1565 | |
2356 | |
1566 | void |
2357 | EV_FREQUENT_CHECK; |
|
|
2358 | } |
|
|
2359 | |
|
|
2360 | void noinline |
1567 | ev_signal_stop (EV_P_ struct ev_signal *w) |
2361 | ev_signal_stop (EV_P_ ev_signal *w) |
1568 | { |
2362 | { |
1569 | ev_clear_pending (EV_A_ (W)w); |
2363 | clear_pending (EV_A_ (W)w); |
1570 | if (expect_false (!ev_is_active (w))) |
2364 | if (expect_false (!ev_is_active (w))) |
1571 | return; |
2365 | return; |
1572 | |
2366 | |
|
|
2367 | EV_FREQUENT_CHECK; |
|
|
2368 | |
1573 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2369 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1574 | ev_stop (EV_A_ (W)w); |
2370 | ev_stop (EV_A_ (W)w); |
1575 | |
2371 | |
1576 | if (!signals [w->signum - 1].head) |
2372 | if (!signals [w->signum - 1].head) |
1577 | signal (w->signum, SIG_DFL); |
2373 | signal (w->signum, SIG_DFL); |
1578 | } |
|
|
1579 | |
2374 | |
|
|
2375 | EV_FREQUENT_CHECK; |
|
|
2376 | } |
|
|
2377 | |
1580 | void |
2378 | void |
1581 | ev_child_start (EV_P_ struct ev_child *w) |
2379 | ev_child_start (EV_P_ ev_child *w) |
1582 | { |
2380 | { |
1583 | #if EV_MULTIPLICITY |
2381 | #if EV_MULTIPLICITY |
1584 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2382 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1585 | #endif |
2383 | #endif |
1586 | if (expect_false (ev_is_active (w))) |
2384 | if (expect_false (ev_is_active (w))) |
1587 | return; |
2385 | return; |
1588 | |
2386 | |
|
|
2387 | EV_FREQUENT_CHECK; |
|
|
2388 | |
1589 | ev_start (EV_A_ (W)w, 1); |
2389 | ev_start (EV_A_ (W)w, 1); |
1590 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2390 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1591 | } |
|
|
1592 | |
2391 | |
|
|
2392 | EV_FREQUENT_CHECK; |
|
|
2393 | } |
|
|
2394 | |
1593 | void |
2395 | void |
1594 | ev_child_stop (EV_P_ struct ev_child *w) |
2396 | ev_child_stop (EV_P_ ev_child *w) |
1595 | { |
2397 | { |
1596 | ev_clear_pending (EV_A_ (W)w); |
2398 | clear_pending (EV_A_ (W)w); |
1597 | if (expect_false (!ev_is_active (w))) |
2399 | if (expect_false (!ev_is_active (w))) |
1598 | return; |
2400 | return; |
1599 | |
2401 | |
|
|
2402 | EV_FREQUENT_CHECK; |
|
|
2403 | |
1600 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2404 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1601 | ev_stop (EV_A_ (W)w); |
2405 | ev_stop (EV_A_ (W)w); |
|
|
2406 | |
|
|
2407 | EV_FREQUENT_CHECK; |
1602 | } |
2408 | } |
|
|
2409 | |
|
|
2410 | #if EV_STAT_ENABLE |
|
|
2411 | |
|
|
2412 | # ifdef _WIN32 |
|
|
2413 | # undef lstat |
|
|
2414 | # define lstat(a,b) _stati64 (a,b) |
|
|
2415 | # endif |
|
|
2416 | |
|
|
2417 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2418 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2419 | |
|
|
2420 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2421 | |
|
|
2422 | #if EV_USE_INOTIFY |
|
|
2423 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2424 | |
|
|
2425 | static void noinline |
|
|
2426 | infy_add (EV_P_ ev_stat *w) |
|
|
2427 | { |
|
|
2428 | 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); |
|
|
2429 | |
|
|
2430 | if (w->wd < 0) |
|
|
2431 | { |
|
|
2432 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2433 | |
|
|
2434 | /* monitor some parent directory for speedup hints */ |
|
|
2435 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2436 | /* but an efficiency issue only */ |
|
|
2437 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2438 | { |
|
|
2439 | char path [4096]; |
|
|
2440 | strcpy (path, w->path); |
|
|
2441 | |
|
|
2442 | do |
|
|
2443 | { |
|
|
2444 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2445 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2446 | |
|
|
2447 | char *pend = strrchr (path, '/'); |
|
|
2448 | |
|
|
2449 | if (!pend) |
|
|
2450 | break; /* whoops, no '/', complain to your admin */ |
|
|
2451 | |
|
|
2452 | *pend = 0; |
|
|
2453 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2454 | } |
|
|
2455 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2456 | } |
|
|
2457 | } |
|
|
2458 | else |
|
|
2459 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2460 | |
|
|
2461 | if (w->wd >= 0) |
|
|
2462 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2463 | } |
|
|
2464 | |
|
|
2465 | static void noinline |
|
|
2466 | infy_del (EV_P_ ev_stat *w) |
|
|
2467 | { |
|
|
2468 | int slot; |
|
|
2469 | int wd = w->wd; |
|
|
2470 | |
|
|
2471 | if (wd < 0) |
|
|
2472 | return; |
|
|
2473 | |
|
|
2474 | w->wd = -2; |
|
|
2475 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2476 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2477 | |
|
|
2478 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2479 | inotify_rm_watch (fs_fd, wd); |
|
|
2480 | } |
|
|
2481 | |
|
|
2482 | static void noinline |
|
|
2483 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2484 | { |
|
|
2485 | if (slot < 0) |
|
|
2486 | /* overflow, need to check for all hahs slots */ |
|
|
2487 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2488 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2489 | else |
|
|
2490 | { |
|
|
2491 | WL w_; |
|
|
2492 | |
|
|
2493 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2494 | { |
|
|
2495 | ev_stat *w = (ev_stat *)w_; |
|
|
2496 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2497 | |
|
|
2498 | if (w->wd == wd || wd == -1) |
|
|
2499 | { |
|
|
2500 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2501 | { |
|
|
2502 | w->wd = -1; |
|
|
2503 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2504 | } |
|
|
2505 | |
|
|
2506 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2507 | } |
|
|
2508 | } |
|
|
2509 | } |
|
|
2510 | } |
|
|
2511 | |
|
|
2512 | static void |
|
|
2513 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2514 | { |
|
|
2515 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2516 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2517 | int ofs; |
|
|
2518 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2519 | |
|
|
2520 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2521 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2522 | } |
|
|
2523 | |
|
|
2524 | void inline_size |
|
|
2525 | infy_init (EV_P) |
|
|
2526 | { |
|
|
2527 | if (fs_fd != -2) |
|
|
2528 | return; |
|
|
2529 | |
|
|
2530 | fs_fd = inotify_init (); |
|
|
2531 | |
|
|
2532 | if (fs_fd >= 0) |
|
|
2533 | { |
|
|
2534 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2535 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2536 | ev_io_start (EV_A_ &fs_w); |
|
|
2537 | } |
|
|
2538 | } |
|
|
2539 | |
|
|
2540 | void inline_size |
|
|
2541 | infy_fork (EV_P) |
|
|
2542 | { |
|
|
2543 | int slot; |
|
|
2544 | |
|
|
2545 | if (fs_fd < 0) |
|
|
2546 | return; |
|
|
2547 | |
|
|
2548 | close (fs_fd); |
|
|
2549 | fs_fd = inotify_init (); |
|
|
2550 | |
|
|
2551 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2552 | { |
|
|
2553 | WL w_ = fs_hash [slot].head; |
|
|
2554 | fs_hash [slot].head = 0; |
|
|
2555 | |
|
|
2556 | while (w_) |
|
|
2557 | { |
|
|
2558 | ev_stat *w = (ev_stat *)w_; |
|
|
2559 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2560 | |
|
|
2561 | w->wd = -1; |
|
|
2562 | |
|
|
2563 | if (fs_fd >= 0) |
|
|
2564 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2565 | else |
|
|
2566 | ev_timer_start (EV_A_ &w->timer); |
|
|
2567 | } |
|
|
2568 | |
|
|
2569 | } |
|
|
2570 | } |
|
|
2571 | |
|
|
2572 | #endif |
|
|
2573 | |
|
|
2574 | void |
|
|
2575 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2576 | { |
|
|
2577 | if (lstat (w->path, &w->attr) < 0) |
|
|
2578 | w->attr.st_nlink = 0; |
|
|
2579 | else if (!w->attr.st_nlink) |
|
|
2580 | w->attr.st_nlink = 1; |
|
|
2581 | } |
|
|
2582 | |
|
|
2583 | static void noinline |
|
|
2584 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2585 | { |
|
|
2586 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2587 | |
|
|
2588 | /* we copy this here each the time so that */ |
|
|
2589 | /* prev has the old value when the callback gets invoked */ |
|
|
2590 | w->prev = w->attr; |
|
|
2591 | ev_stat_stat (EV_A_ w); |
|
|
2592 | |
|
|
2593 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2594 | if ( |
|
|
2595 | w->prev.st_dev != w->attr.st_dev |
|
|
2596 | || w->prev.st_ino != w->attr.st_ino |
|
|
2597 | || w->prev.st_mode != w->attr.st_mode |
|
|
2598 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2599 | || w->prev.st_uid != w->attr.st_uid |
|
|
2600 | || w->prev.st_gid != w->attr.st_gid |
|
|
2601 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2602 | || w->prev.st_size != w->attr.st_size |
|
|
2603 | || w->prev.st_atime != w->attr.st_atime |
|
|
2604 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2605 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2606 | ) { |
|
|
2607 | #if EV_USE_INOTIFY |
|
|
2608 | infy_del (EV_A_ w); |
|
|
2609 | infy_add (EV_A_ w); |
|
|
2610 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2611 | #endif |
|
|
2612 | |
|
|
2613 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2614 | } |
|
|
2615 | } |
|
|
2616 | |
|
|
2617 | void |
|
|
2618 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2619 | { |
|
|
2620 | if (expect_false (ev_is_active (w))) |
|
|
2621 | return; |
|
|
2622 | |
|
|
2623 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2624 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2625 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2626 | |
|
|
2627 | ev_stat_stat (EV_A_ w); |
|
|
2628 | |
|
|
2629 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2630 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2631 | |
|
|
2632 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2633 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2634 | |
|
|
2635 | #if EV_USE_INOTIFY |
|
|
2636 | infy_init (EV_A); |
|
|
2637 | |
|
|
2638 | if (fs_fd >= 0) |
|
|
2639 | infy_add (EV_A_ w); |
|
|
2640 | else |
|
|
2641 | #endif |
|
|
2642 | ev_timer_start (EV_A_ &w->timer); |
|
|
2643 | |
|
|
2644 | ev_start (EV_A_ (W)w, 1); |
|
|
2645 | |
|
|
2646 | EV_FREQUENT_CHECK; |
|
|
2647 | } |
|
|
2648 | |
|
|
2649 | void |
|
|
2650 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2651 | { |
|
|
2652 | clear_pending (EV_A_ (W)w); |
|
|
2653 | if (expect_false (!ev_is_active (w))) |
|
|
2654 | return; |
|
|
2655 | |
|
|
2656 | EV_FREQUENT_CHECK; |
|
|
2657 | |
|
|
2658 | #if EV_USE_INOTIFY |
|
|
2659 | infy_del (EV_A_ w); |
|
|
2660 | #endif |
|
|
2661 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2662 | |
|
|
2663 | ev_stop (EV_A_ (W)w); |
|
|
2664 | |
|
|
2665 | EV_FREQUENT_CHECK; |
|
|
2666 | } |
|
|
2667 | #endif |
|
|
2668 | |
|
|
2669 | #if EV_IDLE_ENABLE |
|
|
2670 | void |
|
|
2671 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2672 | { |
|
|
2673 | if (expect_false (ev_is_active (w))) |
|
|
2674 | return; |
|
|
2675 | |
|
|
2676 | pri_adjust (EV_A_ (W)w); |
|
|
2677 | |
|
|
2678 | EV_FREQUENT_CHECK; |
|
|
2679 | |
|
|
2680 | { |
|
|
2681 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2682 | |
|
|
2683 | ++idleall; |
|
|
2684 | ev_start (EV_A_ (W)w, active); |
|
|
2685 | |
|
|
2686 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2687 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2688 | } |
|
|
2689 | |
|
|
2690 | EV_FREQUENT_CHECK; |
|
|
2691 | } |
|
|
2692 | |
|
|
2693 | void |
|
|
2694 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2695 | { |
|
|
2696 | clear_pending (EV_A_ (W)w); |
|
|
2697 | if (expect_false (!ev_is_active (w))) |
|
|
2698 | return; |
|
|
2699 | |
|
|
2700 | EV_FREQUENT_CHECK; |
|
|
2701 | |
|
|
2702 | { |
|
|
2703 | int active = ev_active (w); |
|
|
2704 | |
|
|
2705 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2706 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
2707 | |
|
|
2708 | ev_stop (EV_A_ (W)w); |
|
|
2709 | --idleall; |
|
|
2710 | } |
|
|
2711 | |
|
|
2712 | EV_FREQUENT_CHECK; |
|
|
2713 | } |
|
|
2714 | #endif |
|
|
2715 | |
|
|
2716 | void |
|
|
2717 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2718 | { |
|
|
2719 | if (expect_false (ev_is_active (w))) |
|
|
2720 | return; |
|
|
2721 | |
|
|
2722 | EV_FREQUENT_CHECK; |
|
|
2723 | |
|
|
2724 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2725 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2726 | prepares [preparecnt - 1] = w; |
|
|
2727 | |
|
|
2728 | EV_FREQUENT_CHECK; |
|
|
2729 | } |
|
|
2730 | |
|
|
2731 | void |
|
|
2732 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2733 | { |
|
|
2734 | clear_pending (EV_A_ (W)w); |
|
|
2735 | if (expect_false (!ev_is_active (w))) |
|
|
2736 | return; |
|
|
2737 | |
|
|
2738 | EV_FREQUENT_CHECK; |
|
|
2739 | |
|
|
2740 | { |
|
|
2741 | int active = ev_active (w); |
|
|
2742 | |
|
|
2743 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2744 | ev_active (prepares [active - 1]) = active; |
|
|
2745 | } |
|
|
2746 | |
|
|
2747 | ev_stop (EV_A_ (W)w); |
|
|
2748 | |
|
|
2749 | EV_FREQUENT_CHECK; |
|
|
2750 | } |
|
|
2751 | |
|
|
2752 | void |
|
|
2753 | ev_check_start (EV_P_ ev_check *w) |
|
|
2754 | { |
|
|
2755 | if (expect_false (ev_is_active (w))) |
|
|
2756 | return; |
|
|
2757 | |
|
|
2758 | EV_FREQUENT_CHECK; |
|
|
2759 | |
|
|
2760 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2761 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2762 | checks [checkcnt - 1] = w; |
|
|
2763 | |
|
|
2764 | EV_FREQUENT_CHECK; |
|
|
2765 | } |
|
|
2766 | |
|
|
2767 | void |
|
|
2768 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2769 | { |
|
|
2770 | clear_pending (EV_A_ (W)w); |
|
|
2771 | if (expect_false (!ev_is_active (w))) |
|
|
2772 | return; |
|
|
2773 | |
|
|
2774 | EV_FREQUENT_CHECK; |
|
|
2775 | |
|
|
2776 | { |
|
|
2777 | int active = ev_active (w); |
|
|
2778 | |
|
|
2779 | checks [active - 1] = checks [--checkcnt]; |
|
|
2780 | ev_active (checks [active - 1]) = active; |
|
|
2781 | } |
|
|
2782 | |
|
|
2783 | ev_stop (EV_A_ (W)w); |
|
|
2784 | |
|
|
2785 | EV_FREQUENT_CHECK; |
|
|
2786 | } |
|
|
2787 | |
|
|
2788 | #if EV_EMBED_ENABLE |
|
|
2789 | void noinline |
|
|
2790 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2791 | { |
|
|
2792 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2793 | } |
|
|
2794 | |
|
|
2795 | static void |
|
|
2796 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2797 | { |
|
|
2798 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2799 | |
|
|
2800 | if (ev_cb (w)) |
|
|
2801 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2802 | else |
|
|
2803 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2804 | } |
|
|
2805 | |
|
|
2806 | static void |
|
|
2807 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2808 | { |
|
|
2809 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2810 | |
|
|
2811 | { |
|
|
2812 | struct ev_loop *loop = w->other; |
|
|
2813 | |
|
|
2814 | while (fdchangecnt) |
|
|
2815 | { |
|
|
2816 | fd_reify (EV_A); |
|
|
2817 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2818 | } |
|
|
2819 | } |
|
|
2820 | } |
|
|
2821 | |
|
|
2822 | #if 0 |
|
|
2823 | static void |
|
|
2824 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2825 | { |
|
|
2826 | ev_idle_stop (EV_A_ idle); |
|
|
2827 | } |
|
|
2828 | #endif |
|
|
2829 | |
|
|
2830 | void |
|
|
2831 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2832 | { |
|
|
2833 | if (expect_false (ev_is_active (w))) |
|
|
2834 | return; |
|
|
2835 | |
|
|
2836 | { |
|
|
2837 | struct ev_loop *loop = w->other; |
|
|
2838 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2839 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2840 | } |
|
|
2841 | |
|
|
2842 | EV_FREQUENT_CHECK; |
|
|
2843 | |
|
|
2844 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2845 | ev_io_start (EV_A_ &w->io); |
|
|
2846 | |
|
|
2847 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2848 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2849 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2850 | |
|
|
2851 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2852 | |
|
|
2853 | ev_start (EV_A_ (W)w, 1); |
|
|
2854 | |
|
|
2855 | EV_FREQUENT_CHECK; |
|
|
2856 | } |
|
|
2857 | |
|
|
2858 | void |
|
|
2859 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2860 | { |
|
|
2861 | clear_pending (EV_A_ (W)w); |
|
|
2862 | if (expect_false (!ev_is_active (w))) |
|
|
2863 | return; |
|
|
2864 | |
|
|
2865 | EV_FREQUENT_CHECK; |
|
|
2866 | |
|
|
2867 | ev_io_stop (EV_A_ &w->io); |
|
|
2868 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2869 | |
|
|
2870 | ev_stop (EV_A_ (W)w); |
|
|
2871 | |
|
|
2872 | EV_FREQUENT_CHECK; |
|
|
2873 | } |
|
|
2874 | #endif |
|
|
2875 | |
|
|
2876 | #if EV_FORK_ENABLE |
|
|
2877 | void |
|
|
2878 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2879 | { |
|
|
2880 | if (expect_false (ev_is_active (w))) |
|
|
2881 | return; |
|
|
2882 | |
|
|
2883 | EV_FREQUENT_CHECK; |
|
|
2884 | |
|
|
2885 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2886 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2887 | forks [forkcnt - 1] = w; |
|
|
2888 | |
|
|
2889 | EV_FREQUENT_CHECK; |
|
|
2890 | } |
|
|
2891 | |
|
|
2892 | void |
|
|
2893 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2894 | { |
|
|
2895 | clear_pending (EV_A_ (W)w); |
|
|
2896 | if (expect_false (!ev_is_active (w))) |
|
|
2897 | return; |
|
|
2898 | |
|
|
2899 | EV_FREQUENT_CHECK; |
|
|
2900 | |
|
|
2901 | { |
|
|
2902 | int active = ev_active (w); |
|
|
2903 | |
|
|
2904 | forks [active - 1] = forks [--forkcnt]; |
|
|
2905 | ev_active (forks [active - 1]) = active; |
|
|
2906 | } |
|
|
2907 | |
|
|
2908 | ev_stop (EV_A_ (W)w); |
|
|
2909 | |
|
|
2910 | EV_FREQUENT_CHECK; |
|
|
2911 | } |
|
|
2912 | #endif |
|
|
2913 | |
|
|
2914 | #if EV_ASYNC_ENABLE |
|
|
2915 | void |
|
|
2916 | ev_async_start (EV_P_ ev_async *w) |
|
|
2917 | { |
|
|
2918 | if (expect_false (ev_is_active (w))) |
|
|
2919 | return; |
|
|
2920 | |
|
|
2921 | evpipe_init (EV_A); |
|
|
2922 | |
|
|
2923 | EV_FREQUENT_CHECK; |
|
|
2924 | |
|
|
2925 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2926 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2927 | asyncs [asynccnt - 1] = w; |
|
|
2928 | |
|
|
2929 | EV_FREQUENT_CHECK; |
|
|
2930 | } |
|
|
2931 | |
|
|
2932 | void |
|
|
2933 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2934 | { |
|
|
2935 | clear_pending (EV_A_ (W)w); |
|
|
2936 | if (expect_false (!ev_is_active (w))) |
|
|
2937 | return; |
|
|
2938 | |
|
|
2939 | EV_FREQUENT_CHECK; |
|
|
2940 | |
|
|
2941 | { |
|
|
2942 | int active = ev_active (w); |
|
|
2943 | |
|
|
2944 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2945 | ev_active (asyncs [active - 1]) = active; |
|
|
2946 | } |
|
|
2947 | |
|
|
2948 | ev_stop (EV_A_ (W)w); |
|
|
2949 | |
|
|
2950 | EV_FREQUENT_CHECK; |
|
|
2951 | } |
|
|
2952 | |
|
|
2953 | void |
|
|
2954 | ev_async_send (EV_P_ ev_async *w) |
|
|
2955 | { |
|
|
2956 | w->sent = 1; |
|
|
2957 | evpipe_write (EV_A_ &gotasync); |
|
|
2958 | } |
|
|
2959 | #endif |
1603 | |
2960 | |
1604 | /*****************************************************************************/ |
2961 | /*****************************************************************************/ |
1605 | |
2962 | |
1606 | struct ev_once |
2963 | struct ev_once |
1607 | { |
2964 | { |
1608 | struct ev_io io; |
2965 | ev_io io; |
1609 | struct ev_timer to; |
2966 | ev_timer to; |
1610 | void (*cb)(int revents, void *arg); |
2967 | void (*cb)(int revents, void *arg); |
1611 | void *arg; |
2968 | void *arg; |
1612 | }; |
2969 | }; |
1613 | |
2970 | |
1614 | static void |
2971 | static void |
… | |
… | |
1623 | |
2980 | |
1624 | cb (revents, arg); |
2981 | cb (revents, arg); |
1625 | } |
2982 | } |
1626 | |
2983 | |
1627 | static void |
2984 | static void |
1628 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2985 | once_cb_io (EV_P_ ev_io *w, int revents) |
1629 | { |
2986 | { |
1630 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2987 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1631 | } |
2988 | } |
1632 | |
2989 | |
1633 | static void |
2990 | static void |
1634 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2991 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1635 | { |
2992 | { |
1636 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2993 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1637 | } |
2994 | } |
1638 | |
2995 | |
1639 | void |
2996 | void |
… | |
… | |
1663 | ev_timer_set (&once->to, timeout, 0.); |
3020 | ev_timer_set (&once->to, timeout, 0.); |
1664 | ev_timer_start (EV_A_ &once->to); |
3021 | ev_timer_start (EV_A_ &once->to); |
1665 | } |
3022 | } |
1666 | } |
3023 | } |
1667 | |
3024 | |
|
|
3025 | #if EV_MULTIPLICITY |
|
|
3026 | #include "ev_wrap.h" |
|
|
3027 | #endif |
|
|
3028 | |
1668 | #ifdef __cplusplus |
3029 | #ifdef __cplusplus |
1669 | } |
3030 | } |
1670 | #endif |
3031 | #endif |
1671 | |
3032 | |