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 |
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99 | |
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100 | # ifndef EV_USE_KQUEUE |
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101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
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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 |
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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 |
63 | |
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 | |
64 | #endif |
132 | #endif |
65 | |
133 | |
66 | #include <math.h> |
134 | #include <math.h> |
67 | #include <stdlib.h> |
135 | #include <stdlib.h> |
68 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
75 | #include <sys/types.h> |
143 | #include <sys/types.h> |
76 | #include <time.h> |
144 | #include <time.h> |
77 | |
145 | |
78 | #include <signal.h> |
146 | #include <signal.h> |
79 | |
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 | |
80 | #ifndef _WIN32 |
154 | #ifndef _WIN32 |
81 | # include <unistd.h> |
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82 | # include <sys/time.h> |
155 | # include <sys/time.h> |
83 | # include <sys/wait.h> |
156 | # include <sys/wait.h> |
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157 | # include <unistd.h> |
84 | #else |
158 | #else |
85 | # define WIN32_LEAN_AND_MEAN |
159 | # define WIN32_LEAN_AND_MEAN |
86 | # include <windows.h> |
160 | # include <windows.h> |
87 | # ifndef EV_SELECT_IS_WINSOCKET |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
88 | # define EV_SELECT_IS_WINSOCKET 1 |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
89 | # endif |
163 | # endif |
90 | #endif |
164 | #endif |
91 | |
165 | |
92 | /**/ |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
93 | |
167 | |
94 | #ifndef EV_USE_MONOTONIC |
168 | #ifndef EV_USE_MONOTONIC |
95 | # define EV_USE_MONOTONIC 1 |
169 | # define EV_USE_MONOTONIC 0 |
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170 | #endif |
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171 | |
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172 | #ifndef EV_USE_REALTIME |
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173 | # define EV_USE_REALTIME 0 |
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174 | #endif |
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175 | |
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176 | #ifndef EV_USE_NANOSLEEP |
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177 | # define EV_USE_NANOSLEEP 0 |
96 | #endif |
178 | #endif |
97 | |
179 | |
98 | #ifndef EV_USE_SELECT |
180 | #ifndef EV_USE_SELECT |
99 | # define EV_USE_SELECT 1 |
181 | # define EV_USE_SELECT 1 |
100 | # define EV_SELECT_USE_FD_SET 1 |
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101 | #endif |
182 | #endif |
102 | |
183 | |
103 | #ifndef EV_USE_POLL |
184 | #ifndef EV_USE_POLL |
104 | # ifdef _WIN32 |
185 | # ifdef _WIN32 |
105 | # define EV_USE_POLL 0 |
186 | # define EV_USE_POLL 0 |
… | |
… | |
107 | # define EV_USE_POLL 1 |
188 | # define EV_USE_POLL 1 |
108 | # endif |
189 | # endif |
109 | #endif |
190 | #endif |
110 | |
191 | |
111 | #ifndef EV_USE_EPOLL |
192 | #ifndef EV_USE_EPOLL |
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193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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194 | # define EV_USE_EPOLL 1 |
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195 | # else |
112 | # define EV_USE_EPOLL 0 |
196 | # define EV_USE_EPOLL 0 |
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197 | # endif |
113 | #endif |
198 | #endif |
114 | |
199 | |
115 | #ifndef EV_USE_KQUEUE |
200 | #ifndef EV_USE_KQUEUE |
116 | # define EV_USE_KQUEUE 0 |
201 | # define EV_USE_KQUEUE 0 |
117 | #endif |
202 | #endif |
118 | |
203 | |
119 | #ifndef EV_USE_REALTIME |
204 | #ifndef EV_USE_PORT |
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205 | # define EV_USE_PORT 0 |
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206 | #endif |
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207 | |
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208 | #ifndef EV_USE_INOTIFY |
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209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
120 | # define EV_USE_REALTIME 1 |
210 | # define EV_USE_INOTIFY 1 |
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211 | # else |
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212 | # define EV_USE_INOTIFY 0 |
121 | #endif |
213 | # endif |
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214 | #endif |
122 | |
215 | |
123 | /**/ |
216 | #ifndef EV_PID_HASHSIZE |
124 | |
217 | # if EV_MINIMAL |
125 | /* darwin simply cnanot be helped */ |
218 | # define EV_PID_HASHSIZE 1 |
126 | #ifdef __APPLE__ |
219 | # else |
127 | # undef EV_USE_POLL |
220 | # define EV_PID_HASHSIZE 16 |
128 | # undef EV_USE_KQUEUE |
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129 | #endif |
221 | # endif |
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222 | #endif |
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223 | |
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224 | #ifndef EV_INOTIFY_HASHSIZE |
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225 | # if EV_MINIMAL |
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226 | # define EV_INOTIFY_HASHSIZE 1 |
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227 | # else |
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228 | # define EV_INOTIFY_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_USE_EVENTFD |
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233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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234 | # define EV_USE_EVENTFD 1 |
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235 | # else |
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236 | # define EV_USE_EVENTFD 0 |
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237 | # endif |
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238 | #endif |
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239 | |
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240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
130 | |
241 | |
131 | #ifndef CLOCK_MONOTONIC |
242 | #ifndef CLOCK_MONOTONIC |
132 | # undef EV_USE_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
133 | # define EV_USE_MONOTONIC 0 |
244 | # define EV_USE_MONOTONIC 0 |
134 | #endif |
245 | #endif |
… | |
… | |
136 | #ifndef CLOCK_REALTIME |
247 | #ifndef CLOCK_REALTIME |
137 | # undef EV_USE_REALTIME |
248 | # undef EV_USE_REALTIME |
138 | # define EV_USE_REALTIME 0 |
249 | # define EV_USE_REALTIME 0 |
139 | #endif |
250 | #endif |
140 | |
251 | |
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252 | #if !EV_STAT_ENABLE |
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253 | # undef EV_USE_INOTIFY |
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254 | # define EV_USE_INOTIFY 0 |
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255 | #endif |
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256 | |
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257 | #if !EV_USE_NANOSLEEP |
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258 | # ifndef _WIN32 |
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259 | # include <sys/select.h> |
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260 | # endif |
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261 | #endif |
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262 | |
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263 | #if EV_USE_INOTIFY |
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264 | # include <sys/inotify.h> |
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265 | #endif |
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266 | |
141 | #if EV_SELECT_IS_WINSOCKET |
267 | #if EV_SELECT_IS_WINSOCKET |
142 | # include <winsock.h> |
268 | # include <winsock.h> |
143 | #endif |
269 | #endif |
144 | |
270 | |
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271 | #if EV_USE_EVENTFD |
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272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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273 | # include <stdint.h> |
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274 | # ifdef __cplusplus |
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275 | extern "C" { |
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276 | # endif |
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277 | int eventfd (unsigned int initval, int flags); |
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278 | # ifdef __cplusplus |
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279 | } |
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280 | # endif |
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281 | #endif |
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282 | |
145 | /**/ |
283 | /**/ |
146 | |
284 | |
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285 | /* |
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286 | * This is used to avoid floating point rounding problems. |
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287 | * It is added to ev_rt_now when scheduling periodics |
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288 | * to ensure progress, time-wise, even when rounding |
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289 | * errors are against us. |
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290 | * This value is good at least till the year 4000. |
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291 | * Better solutions welcome. |
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292 | */ |
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293 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
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294 | |
147 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
295 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
148 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
296 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
149 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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150 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
297 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
151 | |
298 | |
152 | #ifdef EV_H |
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153 | # include EV_H |
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154 | #else |
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155 | # include "ev.h" |
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156 | #endif |
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157 | |
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158 | #if __GNUC__ >= 3 |
299 | #if __GNUC__ >= 4 |
159 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
160 | # define inline inline |
301 | # define noinline __attribute__ ((noinline)) |
161 | #else |
302 | #else |
162 | # define expect(expr,value) (expr) |
303 | # define expect(expr,value) (expr) |
163 | # define inline static |
304 | # define noinline |
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305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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306 | # define inline |
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307 | # endif |
164 | #endif |
308 | #endif |
165 | |
309 | |
166 | #define expect_false(expr) expect ((expr) != 0, 0) |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
167 | #define expect_true(expr) expect ((expr) != 0, 1) |
311 | #define expect_true(expr) expect ((expr) != 0, 1) |
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312 | #define inline_size static inline |
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313 | |
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314 | #if EV_MINIMAL |
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315 | # define inline_speed static noinline |
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316 | #else |
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317 | # define inline_speed static inline |
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318 | #endif |
168 | |
319 | |
169 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
170 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
171 | |
322 | |
172 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
173 | |
325 | |
174 | typedef struct ev_watcher *W; |
326 | typedef ev_watcher *W; |
175 | typedef struct ev_watcher_list *WL; |
327 | typedef ev_watcher_list *WL; |
176 | typedef struct ev_watcher_time *WT; |
328 | typedef ev_watcher_time *WT; |
177 | |
329 | |
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330 | #if EV_USE_MONOTONIC |
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331 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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332 | /* giving it a reasonably high chance of working on typical architetcures */ |
178 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
333 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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334 | #endif |
179 | |
335 | |
180 | #ifdef _WIN32 |
336 | #ifdef _WIN32 |
181 | # include "ev_win32.c" |
337 | # include "ev_win32.c" |
182 | #endif |
338 | #endif |
183 | |
339 | |
184 | /*****************************************************************************/ |
340 | /*****************************************************************************/ |
185 | |
341 | |
186 | static void (*syserr_cb)(const char *msg); |
342 | static void (*syserr_cb)(const char *msg); |
187 | |
343 | |
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344 | void |
188 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
345 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
189 | { |
346 | { |
190 | syserr_cb = cb; |
347 | syserr_cb = cb; |
191 | } |
348 | } |
192 | |
349 | |
193 | static void |
350 | static void noinline |
194 | syserr (const char *msg) |
351 | syserr (const char *msg) |
195 | { |
352 | { |
196 | if (!msg) |
353 | if (!msg) |
197 | msg = "(libev) system error"; |
354 | msg = "(libev) system error"; |
198 | |
355 | |
… | |
… | |
203 | perror (msg); |
360 | perror (msg); |
204 | abort (); |
361 | abort (); |
205 | } |
362 | } |
206 | } |
363 | } |
207 | |
364 | |
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365 | static void * |
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366 | ev_realloc_emul (void *ptr, long size) |
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367 | { |
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368 | /* some systems, notably openbsd and darwin, fail to properly |
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369 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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370 | * the single unix specification, so work around them here. |
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371 | */ |
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372 | |
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373 | if (size) |
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374 | return realloc (ptr, size); |
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375 | |
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376 | free (ptr); |
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377 | return 0; |
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378 | } |
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379 | |
208 | static void *(*alloc)(void *ptr, long size); |
380 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
209 | |
381 | |
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382 | void |
210 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
383 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
211 | { |
384 | { |
212 | alloc = cb; |
385 | alloc = cb; |
213 | } |
386 | } |
214 | |
387 | |
215 | static void * |
388 | inline_speed void * |
216 | ev_realloc (void *ptr, long size) |
389 | ev_realloc (void *ptr, long size) |
217 | { |
390 | { |
218 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
391 | ptr = alloc (ptr, size); |
219 | |
392 | |
220 | if (!ptr && size) |
393 | if (!ptr && size) |
221 | { |
394 | { |
222 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
395 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
223 | abort (); |
396 | abort (); |
… | |
… | |
244 | typedef struct |
417 | typedef struct |
245 | { |
418 | { |
246 | W w; |
419 | W w; |
247 | int events; |
420 | int events; |
248 | } ANPENDING; |
421 | } ANPENDING; |
|
|
422 | |
|
|
423 | #if EV_USE_INOTIFY |
|
|
424 | typedef struct |
|
|
425 | { |
|
|
426 | WL head; |
|
|
427 | } ANFS; |
|
|
428 | #endif |
249 | |
429 | |
250 | #if EV_MULTIPLICITY |
430 | #if EV_MULTIPLICITY |
251 | |
431 | |
252 | struct ev_loop |
432 | struct ev_loop |
253 | { |
433 | { |
… | |
… | |
257 | #include "ev_vars.h" |
437 | #include "ev_vars.h" |
258 | #undef VAR |
438 | #undef VAR |
259 | }; |
439 | }; |
260 | #include "ev_wrap.h" |
440 | #include "ev_wrap.h" |
261 | |
441 | |
262 | struct ev_loop default_loop_struct; |
442 | static struct ev_loop default_loop_struct; |
263 | static struct ev_loop *default_loop; |
443 | struct ev_loop *ev_default_loop_ptr; |
264 | |
444 | |
265 | #else |
445 | #else |
266 | |
446 | |
267 | ev_tstamp ev_rt_now; |
447 | ev_tstamp ev_rt_now; |
268 | #define VAR(name,decl) static decl; |
448 | #define VAR(name,decl) static decl; |
269 | #include "ev_vars.h" |
449 | #include "ev_vars.h" |
270 | #undef VAR |
450 | #undef VAR |
271 | |
451 | |
272 | static int default_loop; |
452 | static int ev_default_loop_ptr; |
273 | |
453 | |
274 | #endif |
454 | #endif |
275 | |
455 | |
276 | /*****************************************************************************/ |
456 | /*****************************************************************************/ |
277 | |
457 | |
… | |
… | |
287 | gettimeofday (&tv, 0); |
467 | gettimeofday (&tv, 0); |
288 | return tv.tv_sec + tv.tv_usec * 1e-6; |
468 | return tv.tv_sec + tv.tv_usec * 1e-6; |
289 | #endif |
469 | #endif |
290 | } |
470 | } |
291 | |
471 | |
292 | inline ev_tstamp |
472 | ev_tstamp inline_size |
293 | get_clock (void) |
473 | get_clock (void) |
294 | { |
474 | { |
295 | #if EV_USE_MONOTONIC |
475 | #if EV_USE_MONOTONIC |
296 | if (expect_true (have_monotonic)) |
476 | if (expect_true (have_monotonic)) |
297 | { |
477 | { |
… | |
… | |
310 | { |
490 | { |
311 | return ev_rt_now; |
491 | return ev_rt_now; |
312 | } |
492 | } |
313 | #endif |
493 | #endif |
314 | |
494 | |
315 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
495 | void |
|
|
496 | ev_sleep (ev_tstamp delay) |
|
|
497 | { |
|
|
498 | if (delay > 0.) |
|
|
499 | { |
|
|
500 | #if EV_USE_NANOSLEEP |
|
|
501 | struct timespec ts; |
|
|
502 | |
|
|
503 | ts.tv_sec = (time_t)delay; |
|
|
504 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
505 | |
|
|
506 | nanosleep (&ts, 0); |
|
|
507 | #elif defined(_WIN32) |
|
|
508 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
509 | #else |
|
|
510 | struct timeval tv; |
|
|
511 | |
|
|
512 | tv.tv_sec = (time_t)delay; |
|
|
513 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
514 | |
|
|
515 | select (0, 0, 0, 0, &tv); |
|
|
516 | #endif |
|
|
517 | } |
|
|
518 | } |
|
|
519 | |
|
|
520 | /*****************************************************************************/ |
|
|
521 | |
|
|
522 | int inline_size |
|
|
523 | array_nextsize (int elem, int cur, int cnt) |
|
|
524 | { |
|
|
525 | int ncur = cur + 1; |
|
|
526 | |
|
|
527 | do |
|
|
528 | ncur <<= 1; |
|
|
529 | while (cnt > ncur); |
|
|
530 | |
|
|
531 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
532 | if (elem * ncur > 4096) |
|
|
533 | { |
|
|
534 | ncur *= elem; |
|
|
535 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
536 | ncur = ncur - sizeof (void *) * 4; |
|
|
537 | ncur /= elem; |
|
|
538 | } |
|
|
539 | |
|
|
540 | return ncur; |
|
|
541 | } |
|
|
542 | |
|
|
543 | static noinline void * |
|
|
544 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
545 | { |
|
|
546 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
547 | return ev_realloc (base, elem * *cur); |
|
|
548 | } |
316 | |
549 | |
317 | #define array_needsize(type,base,cur,cnt,init) \ |
550 | #define array_needsize(type,base,cur,cnt,init) \ |
318 | if (expect_false ((cnt) > cur)) \ |
551 | if (expect_false ((cnt) > (cur))) \ |
319 | { \ |
552 | { \ |
320 | int newcnt = cur; \ |
553 | int ocur_ = (cur); \ |
321 | do \ |
554 | (base) = (type *)array_realloc \ |
322 | { \ |
555 | (sizeof (type), (base), &(cur), (cnt)); \ |
323 | newcnt = array_roundsize (type, newcnt << 1); \ |
556 | init ((base) + (ocur_), (cur) - ocur_); \ |
324 | } \ |
|
|
325 | while ((cnt) > newcnt); \ |
|
|
326 | \ |
|
|
327 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
328 | init (base + cur, newcnt - cur); \ |
|
|
329 | cur = newcnt; \ |
|
|
330 | } |
557 | } |
331 | |
558 | |
|
|
559 | #if 0 |
332 | #define array_slim(type,stem) \ |
560 | #define array_slim(type,stem) \ |
333 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
561 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
334 | { \ |
562 | { \ |
335 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
563 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
336 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
564 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
337 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
565 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
338 | } |
566 | } |
|
|
567 | #endif |
339 | |
568 | |
340 | #define array_free(stem, idx) \ |
569 | #define array_free(stem, idx) \ |
341 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
570 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
342 | |
571 | |
343 | /*****************************************************************************/ |
572 | /*****************************************************************************/ |
344 | |
573 | |
345 | static void |
574 | void noinline |
|
|
575 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
576 | { |
|
|
577 | W w_ = (W)w; |
|
|
578 | int pri = ABSPRI (w_); |
|
|
579 | |
|
|
580 | if (expect_false (w_->pending)) |
|
|
581 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
582 | else |
|
|
583 | { |
|
|
584 | w_->pending = ++pendingcnt [pri]; |
|
|
585 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
586 | pendings [pri][w_->pending - 1].w = w_; |
|
|
587 | pendings [pri][w_->pending - 1].events = revents; |
|
|
588 | } |
|
|
589 | } |
|
|
590 | |
|
|
591 | void inline_speed |
|
|
592 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
593 | { |
|
|
594 | int i; |
|
|
595 | |
|
|
596 | for (i = 0; i < eventcnt; ++i) |
|
|
597 | ev_feed_event (EV_A_ events [i], type); |
|
|
598 | } |
|
|
599 | |
|
|
600 | /*****************************************************************************/ |
|
|
601 | |
|
|
602 | void inline_size |
346 | anfds_init (ANFD *base, int count) |
603 | anfds_init (ANFD *base, int count) |
347 | { |
604 | { |
348 | while (count--) |
605 | while (count--) |
349 | { |
606 | { |
350 | base->head = 0; |
607 | base->head = 0; |
… | |
… | |
353 | |
610 | |
354 | ++base; |
611 | ++base; |
355 | } |
612 | } |
356 | } |
613 | } |
357 | |
614 | |
358 | void |
615 | void inline_speed |
359 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
360 | { |
|
|
361 | W w_ = (W)w; |
|
|
362 | |
|
|
363 | if (w_->pending) |
|
|
364 | { |
|
|
365 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
366 | return; |
|
|
367 | } |
|
|
368 | |
|
|
369 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
370 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
|
|
371 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
372 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
373 | } |
|
|
374 | |
|
|
375 | static void |
|
|
376 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
377 | { |
|
|
378 | int i; |
|
|
379 | |
|
|
380 | for (i = 0; i < eventcnt; ++i) |
|
|
381 | ev_feed_event (EV_A_ events [i], type); |
|
|
382 | } |
|
|
383 | |
|
|
384 | inline void |
|
|
385 | fd_event (EV_P_ int fd, int revents) |
616 | fd_event (EV_P_ int fd, int revents) |
386 | { |
617 | { |
387 | ANFD *anfd = anfds + fd; |
618 | ANFD *anfd = anfds + fd; |
388 | struct ev_io *w; |
619 | ev_io *w; |
389 | |
620 | |
390 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
621 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
391 | { |
622 | { |
392 | int ev = w->events & revents; |
623 | int ev = w->events & revents; |
393 | |
624 | |
394 | if (ev) |
625 | if (ev) |
395 | ev_feed_event (EV_A_ (W)w, ev); |
626 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
397 | } |
628 | } |
398 | |
629 | |
399 | void |
630 | void |
400 | ev_feed_fd_event (EV_P_ int fd, int revents) |
631 | ev_feed_fd_event (EV_P_ int fd, int revents) |
401 | { |
632 | { |
|
|
633 | if (fd >= 0 && fd < anfdmax) |
402 | fd_event (EV_A_ fd, revents); |
634 | fd_event (EV_A_ fd, revents); |
403 | } |
635 | } |
404 | |
636 | |
405 | /*****************************************************************************/ |
637 | void inline_size |
406 | |
|
|
407 | static void |
|
|
408 | fd_reify (EV_P) |
638 | fd_reify (EV_P) |
409 | { |
639 | { |
410 | int i; |
640 | int i; |
411 | |
641 | |
412 | for (i = 0; i < fdchangecnt; ++i) |
642 | for (i = 0; i < fdchangecnt; ++i) |
413 | { |
643 | { |
414 | int fd = fdchanges [i]; |
644 | int fd = fdchanges [i]; |
415 | ANFD *anfd = anfds + fd; |
645 | ANFD *anfd = anfds + fd; |
416 | struct ev_io *w; |
646 | ev_io *w; |
417 | |
647 | |
418 | int events = 0; |
648 | unsigned char events = 0; |
419 | |
649 | |
420 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
650 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
421 | events |= w->events; |
651 | events |= (unsigned char)w->events; |
422 | |
652 | |
423 | #if EV_SELECT_IS_WINSOCKET |
653 | #if EV_SELECT_IS_WINSOCKET |
424 | if (events) |
654 | if (events) |
425 | { |
655 | { |
426 | unsigned long argp; |
656 | unsigned long argp; |
|
|
657 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
658 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
659 | #else |
427 | anfd->handle = _get_osfhandle (fd); |
660 | anfd->handle = _get_osfhandle (fd); |
|
|
661 | #endif |
428 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
662 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
429 | } |
663 | } |
430 | #endif |
664 | #endif |
431 | |
665 | |
|
|
666 | { |
|
|
667 | unsigned char o_events = anfd->events; |
|
|
668 | unsigned char o_reify = anfd->reify; |
|
|
669 | |
432 | anfd->reify = 0; |
670 | anfd->reify = 0; |
433 | |
|
|
434 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
435 | anfd->events = events; |
671 | anfd->events = events; |
|
|
672 | |
|
|
673 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
674 | backend_modify (EV_A_ fd, o_events, events); |
|
|
675 | } |
436 | } |
676 | } |
437 | |
677 | |
438 | fdchangecnt = 0; |
678 | fdchangecnt = 0; |
439 | } |
679 | } |
440 | |
680 | |
441 | static void |
681 | void inline_size |
442 | fd_change (EV_P_ int fd) |
682 | fd_change (EV_P_ int fd, int flags) |
443 | { |
683 | { |
444 | if (anfds [fd].reify) |
684 | unsigned char reify = anfds [fd].reify; |
445 | return; |
|
|
446 | |
|
|
447 | anfds [fd].reify = 1; |
685 | anfds [fd].reify |= flags; |
448 | |
686 | |
|
|
687 | if (expect_true (!reify)) |
|
|
688 | { |
449 | ++fdchangecnt; |
689 | ++fdchangecnt; |
450 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
690 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
451 | fdchanges [fdchangecnt - 1] = fd; |
691 | fdchanges [fdchangecnt - 1] = fd; |
|
|
692 | } |
452 | } |
693 | } |
453 | |
694 | |
454 | static void |
695 | void inline_speed |
455 | fd_kill (EV_P_ int fd) |
696 | fd_kill (EV_P_ int fd) |
456 | { |
697 | { |
457 | struct ev_io *w; |
698 | ev_io *w; |
458 | |
699 | |
459 | while ((w = (struct ev_io *)anfds [fd].head)) |
700 | while ((w = (ev_io *)anfds [fd].head)) |
460 | { |
701 | { |
461 | ev_io_stop (EV_A_ w); |
702 | ev_io_stop (EV_A_ w); |
462 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
703 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
463 | } |
704 | } |
464 | } |
705 | } |
465 | |
706 | |
466 | static int |
707 | int inline_size |
467 | fd_valid (int fd) |
708 | fd_valid (int fd) |
468 | { |
709 | { |
469 | #ifdef _WIN32 |
710 | #ifdef _WIN32 |
470 | return _get_osfhandle (fd) != -1; |
711 | return _get_osfhandle (fd) != -1; |
471 | #else |
712 | #else |
472 | return fcntl (fd, F_GETFD) != -1; |
713 | return fcntl (fd, F_GETFD) != -1; |
473 | #endif |
714 | #endif |
474 | } |
715 | } |
475 | |
716 | |
476 | /* called on EBADF to verify fds */ |
717 | /* called on EBADF to verify fds */ |
477 | static void |
718 | static void noinline |
478 | fd_ebadf (EV_P) |
719 | fd_ebadf (EV_P) |
479 | { |
720 | { |
480 | int fd; |
721 | int fd; |
481 | |
722 | |
482 | for (fd = 0; fd < anfdmax; ++fd) |
723 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
484 | if (!fd_valid (fd) == -1 && errno == EBADF) |
725 | if (!fd_valid (fd) == -1 && errno == EBADF) |
485 | fd_kill (EV_A_ fd); |
726 | fd_kill (EV_A_ fd); |
486 | } |
727 | } |
487 | |
728 | |
488 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
729 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
489 | static void |
730 | static void noinline |
490 | fd_enomem (EV_P) |
731 | fd_enomem (EV_P) |
491 | { |
732 | { |
492 | int fd; |
733 | int fd; |
493 | |
734 | |
494 | for (fd = anfdmax; fd--; ) |
735 | for (fd = anfdmax; fd--; ) |
… | |
… | |
497 | fd_kill (EV_A_ fd); |
738 | fd_kill (EV_A_ fd); |
498 | return; |
739 | return; |
499 | } |
740 | } |
500 | } |
741 | } |
501 | |
742 | |
502 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
743 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
503 | static void |
744 | static void noinline |
504 | fd_rearm_all (EV_P) |
745 | fd_rearm_all (EV_P) |
505 | { |
746 | { |
506 | int fd; |
747 | int fd; |
507 | |
748 | |
508 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
509 | for (fd = 0; fd < anfdmax; ++fd) |
749 | for (fd = 0; fd < anfdmax; ++fd) |
510 | if (anfds [fd].events) |
750 | if (anfds [fd].events) |
511 | { |
751 | { |
512 | anfds [fd].events = 0; |
752 | anfds [fd].events = 0; |
513 | fd_change (EV_A_ fd); |
753 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
514 | } |
754 | } |
515 | } |
755 | } |
516 | |
756 | |
517 | /*****************************************************************************/ |
757 | /*****************************************************************************/ |
518 | |
758 | |
519 | static void |
759 | void inline_speed |
520 | upheap (WT *heap, int k) |
760 | upheap (WT *heap, int k) |
521 | { |
761 | { |
522 | WT w = heap [k]; |
762 | WT w = heap [k]; |
523 | |
763 | |
524 | while (k && heap [k >> 1]->at > w->at) |
764 | while (k) |
525 | { |
765 | { |
|
|
766 | int p = (k - 1) >> 1; |
|
|
767 | |
|
|
768 | if (heap [p]->at <= w->at) |
|
|
769 | break; |
|
|
770 | |
526 | heap [k] = heap [k >> 1]; |
771 | heap [k] = heap [p]; |
527 | ((W)heap [k])->active = k + 1; |
772 | ((W)heap [k])->active = k + 1; |
528 | k >>= 1; |
773 | k = p; |
529 | } |
774 | } |
530 | |
775 | |
531 | heap [k] = w; |
776 | heap [k] = w; |
532 | ((W)heap [k])->active = k + 1; |
777 | ((W)heap [k])->active = k + 1; |
533 | |
|
|
534 | } |
778 | } |
535 | |
779 | |
536 | static void |
780 | void inline_speed |
537 | downheap (WT *heap, int N, int k) |
781 | downheap (WT *heap, int N, int k) |
538 | { |
782 | { |
539 | WT w = heap [k]; |
783 | WT w = heap [k]; |
540 | |
784 | |
541 | while (k < (N >> 1)) |
785 | for (;;) |
542 | { |
786 | { |
543 | int j = k << 1; |
787 | int c = (k << 1) + 1; |
544 | |
788 | |
545 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
789 | if (c >= N) |
546 | ++j; |
|
|
547 | |
|
|
548 | if (w->at <= heap [j]->at) |
|
|
549 | break; |
790 | break; |
550 | |
791 | |
|
|
792 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
793 | ? 1 : 0; |
|
|
794 | |
|
|
795 | if (w->at <= heap [c]->at) |
|
|
796 | break; |
|
|
797 | |
551 | heap [k] = heap [j]; |
798 | heap [k] = heap [c]; |
552 | ((W)heap [k])->active = k + 1; |
799 | ((W)heap [k])->active = k + 1; |
|
|
800 | |
553 | k = j; |
801 | k = c; |
554 | } |
802 | } |
555 | |
803 | |
556 | heap [k] = w; |
804 | heap [k] = w; |
557 | ((W)heap [k])->active = k + 1; |
805 | ((W)heap [k])->active = k + 1; |
558 | } |
806 | } |
559 | |
807 | |
560 | inline void |
808 | void inline_size |
561 | adjustheap (WT *heap, int N, int k) |
809 | adjustheap (WT *heap, int N, int k) |
562 | { |
810 | { |
563 | upheap (heap, k); |
811 | upheap (heap, k); |
564 | downheap (heap, N, k); |
812 | downheap (heap, N, k); |
565 | } |
813 | } |
… | |
… | |
567 | /*****************************************************************************/ |
815 | /*****************************************************************************/ |
568 | |
816 | |
569 | typedef struct |
817 | typedef struct |
570 | { |
818 | { |
571 | WL head; |
819 | WL head; |
572 | sig_atomic_t volatile gotsig; |
820 | EV_ATOMIC_T gotsig; |
573 | } ANSIG; |
821 | } ANSIG; |
574 | |
822 | |
575 | static ANSIG *signals; |
823 | static ANSIG *signals; |
576 | static int signalmax; |
824 | static int signalmax; |
577 | |
825 | |
578 | static int sigpipe [2]; |
826 | static EV_ATOMIC_T gotsig; |
579 | static sig_atomic_t volatile gotsig; |
|
|
580 | static struct ev_io sigev; |
|
|
581 | |
827 | |
582 | static void |
828 | void inline_size |
583 | signals_init (ANSIG *base, int count) |
829 | signals_init (ANSIG *base, int count) |
584 | { |
830 | { |
585 | while (count--) |
831 | while (count--) |
586 | { |
832 | { |
587 | base->head = 0; |
833 | base->head = 0; |
… | |
… | |
589 | |
835 | |
590 | ++base; |
836 | ++base; |
591 | } |
837 | } |
592 | } |
838 | } |
593 | |
839 | |
594 | static void |
840 | /*****************************************************************************/ |
595 | sighandler (int signum) |
|
|
596 | { |
|
|
597 | #if _WIN32 |
|
|
598 | signal (signum, sighandler); |
|
|
599 | #endif |
|
|
600 | |
841 | |
601 | signals [signum - 1].gotsig = 1; |
842 | void inline_speed |
602 | |
|
|
603 | if (!gotsig) |
|
|
604 | { |
|
|
605 | int old_errno = errno; |
|
|
606 | gotsig = 1; |
|
|
607 | write (sigpipe [1], &signum, 1); |
|
|
608 | errno = old_errno; |
|
|
609 | } |
|
|
610 | } |
|
|
611 | |
|
|
612 | void |
|
|
613 | ev_feed_signal_event (EV_P_ int signum) |
|
|
614 | { |
|
|
615 | WL w; |
|
|
616 | |
|
|
617 | #if EV_MULTIPLICITY |
|
|
618 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
|
|
619 | #endif |
|
|
620 | |
|
|
621 | --signum; |
|
|
622 | |
|
|
623 | if (signum < 0 || signum >= signalmax) |
|
|
624 | return; |
|
|
625 | |
|
|
626 | signals [signum].gotsig = 0; |
|
|
627 | |
|
|
628 | for (w = signals [signum].head; w; w = w->next) |
|
|
629 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
630 | } |
|
|
631 | |
|
|
632 | static void |
|
|
633 | sigcb (EV_P_ struct ev_io *iow, int revents) |
|
|
634 | { |
|
|
635 | int signum; |
|
|
636 | |
|
|
637 | read (sigpipe [0], &revents, 1); |
|
|
638 | gotsig = 0; |
|
|
639 | |
|
|
640 | for (signum = signalmax; signum--; ) |
|
|
641 | if (signals [signum].gotsig) |
|
|
642 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
643 | } |
|
|
644 | |
|
|
645 | inline void |
|
|
646 | fd_intern (int fd) |
843 | fd_intern (int fd) |
647 | { |
844 | { |
648 | #ifdef _WIN32 |
845 | #ifdef _WIN32 |
649 | int arg = 1; |
846 | int arg = 1; |
650 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
847 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
652 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
849 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
653 | fcntl (fd, F_SETFL, O_NONBLOCK); |
850 | fcntl (fd, F_SETFL, O_NONBLOCK); |
654 | #endif |
851 | #endif |
655 | } |
852 | } |
656 | |
853 | |
|
|
854 | static void noinline |
|
|
855 | evpipe_init (EV_P) |
|
|
856 | { |
|
|
857 | if (!ev_is_active (&pipeev)) |
|
|
858 | { |
|
|
859 | #if EV_USE_EVENTFD |
|
|
860 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
861 | { |
|
|
862 | evpipe [0] = -1; |
|
|
863 | fd_intern (evfd); |
|
|
864 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
865 | } |
|
|
866 | else |
|
|
867 | #endif |
|
|
868 | { |
|
|
869 | while (pipe (evpipe)) |
|
|
870 | syserr ("(libev) error creating signal/async pipe"); |
|
|
871 | |
|
|
872 | fd_intern (evpipe [0]); |
|
|
873 | fd_intern (evpipe [1]); |
|
|
874 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
875 | } |
|
|
876 | |
|
|
877 | ev_io_start (EV_A_ &pipeev); |
|
|
878 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
879 | } |
|
|
880 | } |
|
|
881 | |
|
|
882 | void inline_size |
|
|
883 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
884 | { |
|
|
885 | if (!*flag) |
|
|
886 | { |
|
|
887 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
888 | |
|
|
889 | *flag = 1; |
|
|
890 | |
|
|
891 | #if EV_USE_EVENTFD |
|
|
892 | if (evfd >= 0) |
|
|
893 | { |
|
|
894 | uint64_t counter = 1; |
|
|
895 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
896 | } |
|
|
897 | else |
|
|
898 | #endif |
|
|
899 | write (evpipe [1], &old_errno, 1); |
|
|
900 | |
|
|
901 | errno = old_errno; |
|
|
902 | } |
|
|
903 | } |
|
|
904 | |
657 | static void |
905 | static void |
658 | siginit (EV_P) |
906 | pipecb (EV_P_ ev_io *iow, int revents) |
659 | { |
907 | { |
660 | fd_intern (sigpipe [0]); |
908 | #if EV_USE_EVENTFD |
661 | fd_intern (sigpipe [1]); |
909 | if (evfd >= 0) |
|
|
910 | { |
|
|
911 | uint64_t counter = 1; |
|
|
912 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
913 | } |
|
|
914 | else |
|
|
915 | #endif |
|
|
916 | { |
|
|
917 | char dummy; |
|
|
918 | read (evpipe [0], &dummy, 1); |
|
|
919 | } |
662 | |
920 | |
663 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
921 | if (gotsig && ev_is_default_loop (EV_A)) |
664 | ev_io_start (EV_A_ &sigev); |
922 | { |
665 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
923 | int signum; |
|
|
924 | gotsig = 0; |
|
|
925 | |
|
|
926 | for (signum = signalmax; signum--; ) |
|
|
927 | if (signals [signum].gotsig) |
|
|
928 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
929 | } |
|
|
930 | |
|
|
931 | #if EV_ASYNC_ENABLE |
|
|
932 | if (gotasync) |
|
|
933 | { |
|
|
934 | int i; |
|
|
935 | gotasync = 0; |
|
|
936 | |
|
|
937 | for (i = asynccnt; i--; ) |
|
|
938 | if (asyncs [i]->sent) |
|
|
939 | { |
|
|
940 | asyncs [i]->sent = 0; |
|
|
941 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
942 | } |
|
|
943 | } |
|
|
944 | #endif |
666 | } |
945 | } |
667 | |
946 | |
668 | /*****************************************************************************/ |
947 | /*****************************************************************************/ |
669 | |
948 | |
670 | static struct ev_child *childs [PID_HASHSIZE]; |
949 | static void |
|
|
950 | ev_sighandler (int signum) |
|
|
951 | { |
|
|
952 | #if EV_MULTIPLICITY |
|
|
953 | struct ev_loop *loop = &default_loop_struct; |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | #if _WIN32 |
|
|
957 | signal (signum, ev_sighandler); |
|
|
958 | #endif |
|
|
959 | |
|
|
960 | signals [signum - 1].gotsig = 1; |
|
|
961 | evpipe_write (EV_A_ &gotsig); |
|
|
962 | } |
|
|
963 | |
|
|
964 | void noinline |
|
|
965 | ev_feed_signal_event (EV_P_ int signum) |
|
|
966 | { |
|
|
967 | WL w; |
|
|
968 | |
|
|
969 | #if EV_MULTIPLICITY |
|
|
970 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
971 | #endif |
|
|
972 | |
|
|
973 | --signum; |
|
|
974 | |
|
|
975 | if (signum < 0 || signum >= signalmax) |
|
|
976 | return; |
|
|
977 | |
|
|
978 | signals [signum].gotsig = 0; |
|
|
979 | |
|
|
980 | for (w = signals [signum].head; w; w = w->next) |
|
|
981 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
982 | } |
|
|
983 | |
|
|
984 | /*****************************************************************************/ |
|
|
985 | |
|
|
986 | static WL childs [EV_PID_HASHSIZE]; |
671 | |
987 | |
672 | #ifndef _WIN32 |
988 | #ifndef _WIN32 |
673 | |
989 | |
674 | static struct ev_signal childev; |
990 | static ev_signal childev; |
|
|
991 | |
|
|
992 | #ifndef WIFCONTINUED |
|
|
993 | # define WIFCONTINUED(status) 0 |
|
|
994 | #endif |
|
|
995 | |
|
|
996 | void inline_speed |
|
|
997 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
998 | { |
|
|
999 | ev_child *w; |
|
|
1000 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1001 | |
|
|
1002 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1003 | { |
|
|
1004 | if ((w->pid == pid || !w->pid) |
|
|
1005 | && (!traced || (w->flags & 1))) |
|
|
1006 | { |
|
|
1007 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1008 | w->rpid = pid; |
|
|
1009 | w->rstatus = status; |
|
|
1010 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1011 | } |
|
|
1012 | } |
|
|
1013 | } |
675 | |
1014 | |
676 | #ifndef WCONTINUED |
1015 | #ifndef WCONTINUED |
677 | # define WCONTINUED 0 |
1016 | # define WCONTINUED 0 |
678 | #endif |
1017 | #endif |
679 | |
1018 | |
680 | static void |
1019 | static void |
681 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
682 | { |
|
|
683 | struct ev_child *w; |
|
|
684 | |
|
|
685 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
686 | if (w->pid == pid || !w->pid) |
|
|
687 | { |
|
|
688 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
689 | w->rpid = pid; |
|
|
690 | w->rstatus = status; |
|
|
691 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
692 | } |
|
|
693 | } |
|
|
694 | |
|
|
695 | static void |
|
|
696 | childcb (EV_P_ struct ev_signal *sw, int revents) |
1020 | childcb (EV_P_ ev_signal *sw, int revents) |
697 | { |
1021 | { |
698 | int pid, status; |
1022 | int pid, status; |
699 | |
1023 | |
|
|
1024 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
700 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1025 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
701 | { |
1026 | if (!WCONTINUED |
|
|
1027 | || errno != EINVAL |
|
|
1028 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1029 | return; |
|
|
1030 | |
702 | /* make sure we are called again until all childs have been reaped */ |
1031 | /* make sure we are called again until all children have been reaped */ |
|
|
1032 | /* we need to do it this way so that the callback gets called before we continue */ |
703 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1033 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
704 | |
1034 | |
705 | child_reap (EV_A_ sw, pid, pid, status); |
1035 | child_reap (EV_A_ pid, pid, status); |
|
|
1036 | if (EV_PID_HASHSIZE > 1) |
706 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
1037 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
707 | } |
|
|
708 | } |
1038 | } |
709 | |
1039 | |
710 | #endif |
1040 | #endif |
711 | |
1041 | |
712 | /*****************************************************************************/ |
1042 | /*****************************************************************************/ |
713 | |
1043 | |
|
|
1044 | #if EV_USE_PORT |
|
|
1045 | # include "ev_port.c" |
|
|
1046 | #endif |
714 | #if EV_USE_KQUEUE |
1047 | #if EV_USE_KQUEUE |
715 | # include "ev_kqueue.c" |
1048 | # include "ev_kqueue.c" |
716 | #endif |
1049 | #endif |
717 | #if EV_USE_EPOLL |
1050 | #if EV_USE_EPOLL |
718 | # include "ev_epoll.c" |
1051 | # include "ev_epoll.c" |
… | |
… | |
735 | { |
1068 | { |
736 | return EV_VERSION_MINOR; |
1069 | return EV_VERSION_MINOR; |
737 | } |
1070 | } |
738 | |
1071 | |
739 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1072 | /* return true if we are running with elevated privileges and should ignore env variables */ |
740 | static int |
1073 | int inline_size |
741 | enable_secure (void) |
1074 | enable_secure (void) |
742 | { |
1075 | { |
743 | #ifdef _WIN32 |
1076 | #ifdef _WIN32 |
744 | return 0; |
1077 | return 0; |
745 | #else |
1078 | #else |
746 | return getuid () != geteuid () |
1079 | return getuid () != geteuid () |
747 | || getgid () != getegid (); |
1080 | || getgid () != getegid (); |
748 | #endif |
1081 | #endif |
749 | } |
1082 | } |
750 | |
1083 | |
751 | int |
1084 | unsigned int |
752 | ev_method (EV_P) |
1085 | ev_supported_backends (void) |
753 | { |
1086 | { |
754 | return method; |
1087 | unsigned int flags = 0; |
755 | } |
|
|
756 | |
1088 | |
757 | static void |
1089 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
758 | loop_init (EV_P_ int methods) |
1090 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1091 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1092 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1093 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1094 | |
|
|
1095 | return flags; |
|
|
1096 | } |
|
|
1097 | |
|
|
1098 | unsigned int |
|
|
1099 | ev_recommended_backends (void) |
759 | { |
1100 | { |
760 | if (!method) |
1101 | unsigned int flags = ev_supported_backends (); |
|
|
1102 | |
|
|
1103 | #ifndef __NetBSD__ |
|
|
1104 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1105 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1106 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1107 | #endif |
|
|
1108 | #ifdef __APPLE__ |
|
|
1109 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1110 | flags &= ~EVBACKEND_POLL; |
|
|
1111 | #endif |
|
|
1112 | |
|
|
1113 | return flags; |
|
|
1114 | } |
|
|
1115 | |
|
|
1116 | unsigned int |
|
|
1117 | ev_embeddable_backends (void) |
|
|
1118 | { |
|
|
1119 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1120 | |
|
|
1121 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1122 | /* please fix it and tell me how to detect the fix */ |
|
|
1123 | flags &= ~EVBACKEND_EPOLL; |
|
|
1124 | |
|
|
1125 | return flags; |
|
|
1126 | } |
|
|
1127 | |
|
|
1128 | unsigned int |
|
|
1129 | ev_backend (EV_P) |
|
|
1130 | { |
|
|
1131 | return backend; |
|
|
1132 | } |
|
|
1133 | |
|
|
1134 | unsigned int |
|
|
1135 | ev_loop_count (EV_P) |
|
|
1136 | { |
|
|
1137 | return loop_count; |
|
|
1138 | } |
|
|
1139 | |
|
|
1140 | void |
|
|
1141 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1142 | { |
|
|
1143 | io_blocktime = interval; |
|
|
1144 | } |
|
|
1145 | |
|
|
1146 | void |
|
|
1147 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1148 | { |
|
|
1149 | timeout_blocktime = interval; |
|
|
1150 | } |
|
|
1151 | |
|
|
1152 | static void noinline |
|
|
1153 | loop_init (EV_P_ unsigned int flags) |
|
|
1154 | { |
|
|
1155 | if (!backend) |
761 | { |
1156 | { |
762 | #if EV_USE_MONOTONIC |
1157 | #if EV_USE_MONOTONIC |
763 | { |
1158 | { |
764 | struct timespec ts; |
1159 | struct timespec ts; |
765 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1160 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
766 | have_monotonic = 1; |
1161 | have_monotonic = 1; |
767 | } |
1162 | } |
768 | #endif |
1163 | #endif |
769 | |
1164 | |
770 | ev_rt_now = ev_time (); |
1165 | ev_rt_now = ev_time (); |
771 | mn_now = get_clock (); |
1166 | mn_now = get_clock (); |
772 | now_floor = mn_now; |
1167 | now_floor = mn_now; |
773 | rtmn_diff = ev_rt_now - mn_now; |
1168 | rtmn_diff = ev_rt_now - mn_now; |
774 | |
1169 | |
775 | if (methods == EVMETHOD_AUTO) |
1170 | io_blocktime = 0.; |
776 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1171 | timeout_blocktime = 0.; |
|
|
1172 | backend = 0; |
|
|
1173 | backend_fd = -1; |
|
|
1174 | gotasync = 0; |
|
|
1175 | #if EV_USE_INOTIFY |
|
|
1176 | fs_fd = -2; |
|
|
1177 | #endif |
|
|
1178 | |
|
|
1179 | /* pid check not overridable via env */ |
|
|
1180 | #ifndef _WIN32 |
|
|
1181 | if (flags & EVFLAG_FORKCHECK) |
|
|
1182 | curpid = getpid (); |
|
|
1183 | #endif |
|
|
1184 | |
|
|
1185 | if (!(flags & EVFLAG_NOENV) |
|
|
1186 | && !enable_secure () |
|
|
1187 | && getenv ("LIBEV_FLAGS")) |
777 | methods = atoi (getenv ("LIBEV_METHODS")); |
1188 | flags = atoi (getenv ("LIBEV_FLAGS")); |
778 | else |
|
|
779 | methods = EVMETHOD_ANY; |
|
|
780 | |
1189 | |
781 | method = 0; |
1190 | if (!(flags & 0x0000ffffU)) |
|
|
1191 | flags |= ev_recommended_backends (); |
|
|
1192 | |
|
|
1193 | #if EV_USE_PORT |
|
|
1194 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
1195 | #endif |
782 | #if EV_USE_KQUEUE |
1196 | #if EV_USE_KQUEUE |
783 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
1197 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
784 | #endif |
1198 | #endif |
785 | #if EV_USE_EPOLL |
1199 | #if EV_USE_EPOLL |
786 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
1200 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
787 | #endif |
1201 | #endif |
788 | #if EV_USE_POLL |
1202 | #if EV_USE_POLL |
789 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
1203 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
790 | #endif |
1204 | #endif |
791 | #if EV_USE_SELECT |
1205 | #if EV_USE_SELECT |
792 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
1206 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
793 | #endif |
1207 | #endif |
794 | |
1208 | |
795 | ev_init (&sigev, sigcb); |
1209 | ev_init (&pipeev, pipecb); |
796 | ev_set_priority (&sigev, EV_MAXPRI); |
1210 | ev_set_priority (&pipeev, EV_MAXPRI); |
797 | } |
1211 | } |
798 | } |
1212 | } |
799 | |
1213 | |
800 | void |
1214 | static void noinline |
801 | loop_destroy (EV_P) |
1215 | loop_destroy (EV_P) |
802 | { |
1216 | { |
803 | int i; |
1217 | int i; |
804 | |
1218 | |
|
|
1219 | if (ev_is_active (&pipeev)) |
|
|
1220 | { |
|
|
1221 | ev_ref (EV_A); /* signal watcher */ |
|
|
1222 | ev_io_stop (EV_A_ &pipeev); |
|
|
1223 | |
|
|
1224 | #if EV_USE_EVENTFD |
|
|
1225 | if (evfd >= 0) |
|
|
1226 | close (evfd); |
|
|
1227 | #endif |
|
|
1228 | |
|
|
1229 | if (evpipe [0] >= 0) |
|
|
1230 | { |
|
|
1231 | close (evpipe [0]); |
|
|
1232 | close (evpipe [1]); |
|
|
1233 | } |
|
|
1234 | } |
|
|
1235 | |
|
|
1236 | #if EV_USE_INOTIFY |
|
|
1237 | if (fs_fd >= 0) |
|
|
1238 | close (fs_fd); |
|
|
1239 | #endif |
|
|
1240 | |
|
|
1241 | if (backend_fd >= 0) |
|
|
1242 | close (backend_fd); |
|
|
1243 | |
|
|
1244 | #if EV_USE_PORT |
|
|
1245 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
1246 | #endif |
805 | #if EV_USE_KQUEUE |
1247 | #if EV_USE_KQUEUE |
806 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1248 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
807 | #endif |
1249 | #endif |
808 | #if EV_USE_EPOLL |
1250 | #if EV_USE_EPOLL |
809 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1251 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
810 | #endif |
1252 | #endif |
811 | #if EV_USE_POLL |
1253 | #if EV_USE_POLL |
812 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1254 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
813 | #endif |
1255 | #endif |
814 | #if EV_USE_SELECT |
1256 | #if EV_USE_SELECT |
815 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1257 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
816 | #endif |
1258 | #endif |
817 | |
1259 | |
818 | for (i = NUMPRI; i--; ) |
1260 | for (i = NUMPRI; i--; ) |
|
|
1261 | { |
819 | array_free (pending, [i]); |
1262 | array_free (pending, [i]); |
|
|
1263 | #if EV_IDLE_ENABLE |
|
|
1264 | array_free (idle, [i]); |
|
|
1265 | #endif |
|
|
1266 | } |
|
|
1267 | |
|
|
1268 | ev_free (anfds); anfdmax = 0; |
820 | |
1269 | |
821 | /* have to use the microsoft-never-gets-it-right macro */ |
1270 | /* have to use the microsoft-never-gets-it-right macro */ |
822 | array_free (fdchange, EMPTY); |
1271 | array_free (fdchange, EMPTY); |
823 | array_free (timer, EMPTY); |
1272 | array_free (timer, EMPTY); |
824 | #if EV_PERIODICS |
1273 | #if EV_PERIODIC_ENABLE |
825 | array_free (periodic, EMPTY); |
1274 | array_free (periodic, EMPTY); |
826 | #endif |
1275 | #endif |
|
|
1276 | #if EV_FORK_ENABLE |
827 | array_free (idle, EMPTY); |
1277 | array_free (fork, EMPTY); |
|
|
1278 | #endif |
828 | array_free (prepare, EMPTY); |
1279 | array_free (prepare, EMPTY); |
829 | array_free (check, EMPTY); |
1280 | array_free (check, EMPTY); |
|
|
1281 | #if EV_ASYNC_ENABLE |
|
|
1282 | array_free (async, EMPTY); |
|
|
1283 | #endif |
830 | |
1284 | |
831 | method = 0; |
1285 | backend = 0; |
832 | } |
1286 | } |
833 | |
1287 | |
834 | static void |
1288 | #if EV_USE_INOTIFY |
|
|
1289 | void inline_size infy_fork (EV_P); |
|
|
1290 | #endif |
|
|
1291 | |
|
|
1292 | void inline_size |
835 | loop_fork (EV_P) |
1293 | loop_fork (EV_P) |
836 | { |
1294 | { |
|
|
1295 | #if EV_USE_PORT |
|
|
1296 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1297 | #endif |
|
|
1298 | #if EV_USE_KQUEUE |
|
|
1299 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1300 | #endif |
837 | #if EV_USE_EPOLL |
1301 | #if EV_USE_EPOLL |
838 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1302 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
839 | #endif |
1303 | #endif |
840 | #if EV_USE_KQUEUE |
1304 | #if EV_USE_INOTIFY |
841 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1305 | infy_fork (EV_A); |
842 | #endif |
1306 | #endif |
843 | |
1307 | |
844 | if (ev_is_active (&sigev)) |
1308 | if (ev_is_active (&pipeev)) |
845 | { |
1309 | { |
846 | /* default loop */ |
1310 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1311 | /* while we modify the fd vars */ |
|
|
1312 | gotsig = 1; |
|
|
1313 | #if EV_ASYNC_ENABLE |
|
|
1314 | gotasync = 1; |
|
|
1315 | #endif |
847 | |
1316 | |
848 | ev_ref (EV_A); |
1317 | ev_ref (EV_A); |
849 | ev_io_stop (EV_A_ &sigev); |
1318 | ev_io_stop (EV_A_ &pipeev); |
|
|
1319 | |
|
|
1320 | #if EV_USE_EVENTFD |
|
|
1321 | if (evfd >= 0) |
|
|
1322 | close (evfd); |
|
|
1323 | #endif |
|
|
1324 | |
|
|
1325 | if (evpipe [0] >= 0) |
|
|
1326 | { |
850 | close (sigpipe [0]); |
1327 | close (evpipe [0]); |
851 | close (sigpipe [1]); |
1328 | close (evpipe [1]); |
|
|
1329 | } |
852 | |
1330 | |
853 | while (pipe (sigpipe)) |
|
|
854 | syserr ("(libev) error creating pipe"); |
|
|
855 | |
|
|
856 | siginit (EV_A); |
1331 | evpipe_init (EV_A); |
|
|
1332 | /* now iterate over everything, in case we missed something */ |
|
|
1333 | pipecb (EV_A_ &pipeev, EV_READ); |
857 | } |
1334 | } |
858 | |
1335 | |
859 | postfork = 0; |
1336 | postfork = 0; |
860 | } |
1337 | } |
861 | |
1338 | |
862 | #if EV_MULTIPLICITY |
1339 | #if EV_MULTIPLICITY |
863 | struct ev_loop * |
1340 | struct ev_loop * |
864 | ev_loop_new (int methods) |
1341 | ev_loop_new (unsigned int flags) |
865 | { |
1342 | { |
866 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1343 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
867 | |
1344 | |
868 | memset (loop, 0, sizeof (struct ev_loop)); |
1345 | memset (loop, 0, sizeof (struct ev_loop)); |
869 | |
1346 | |
870 | loop_init (EV_A_ methods); |
1347 | loop_init (EV_A_ flags); |
871 | |
1348 | |
872 | if (ev_method (EV_A)) |
1349 | if (ev_backend (EV_A)) |
873 | return loop; |
1350 | return loop; |
874 | |
1351 | |
875 | return 0; |
1352 | return 0; |
876 | } |
1353 | } |
877 | |
1354 | |
… | |
… | |
883 | } |
1360 | } |
884 | |
1361 | |
885 | void |
1362 | void |
886 | ev_loop_fork (EV_P) |
1363 | ev_loop_fork (EV_P) |
887 | { |
1364 | { |
888 | postfork = 1; |
1365 | postfork = 1; /* must be in line with ev_default_fork */ |
889 | } |
1366 | } |
890 | |
1367 | |
891 | #endif |
1368 | #endif |
892 | |
1369 | |
893 | #if EV_MULTIPLICITY |
1370 | #if EV_MULTIPLICITY |
894 | struct ev_loop * |
1371 | struct ev_loop * |
|
|
1372 | ev_default_loop_init (unsigned int flags) |
895 | #else |
1373 | #else |
896 | int |
1374 | int |
|
|
1375 | ev_default_loop (unsigned int flags) |
897 | #endif |
1376 | #endif |
898 | ev_default_loop (int methods) |
|
|
899 | { |
1377 | { |
900 | if (sigpipe [0] == sigpipe [1]) |
|
|
901 | if (pipe (sigpipe)) |
|
|
902 | return 0; |
|
|
903 | |
|
|
904 | if (!default_loop) |
1378 | if (!ev_default_loop_ptr) |
905 | { |
1379 | { |
906 | #if EV_MULTIPLICITY |
1380 | #if EV_MULTIPLICITY |
907 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1381 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
908 | #else |
1382 | #else |
909 | default_loop = 1; |
1383 | ev_default_loop_ptr = 1; |
910 | #endif |
1384 | #endif |
911 | |
1385 | |
912 | loop_init (EV_A_ methods); |
1386 | loop_init (EV_A_ flags); |
913 | |
1387 | |
914 | if (ev_method (EV_A)) |
1388 | if (ev_backend (EV_A)) |
915 | { |
1389 | { |
916 | siginit (EV_A); |
|
|
917 | |
|
|
918 | #ifndef _WIN32 |
1390 | #ifndef _WIN32 |
919 | ev_signal_init (&childev, childcb, SIGCHLD); |
1391 | ev_signal_init (&childev, childcb, SIGCHLD); |
920 | ev_set_priority (&childev, EV_MAXPRI); |
1392 | ev_set_priority (&childev, EV_MAXPRI); |
921 | ev_signal_start (EV_A_ &childev); |
1393 | ev_signal_start (EV_A_ &childev); |
922 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1394 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
923 | #endif |
1395 | #endif |
924 | } |
1396 | } |
925 | else |
1397 | else |
926 | default_loop = 0; |
1398 | ev_default_loop_ptr = 0; |
927 | } |
1399 | } |
928 | |
1400 | |
929 | return default_loop; |
1401 | return ev_default_loop_ptr; |
930 | } |
1402 | } |
931 | |
1403 | |
932 | void |
1404 | void |
933 | ev_default_destroy (void) |
1405 | ev_default_destroy (void) |
934 | { |
1406 | { |
935 | #if EV_MULTIPLICITY |
1407 | #if EV_MULTIPLICITY |
936 | struct ev_loop *loop = default_loop; |
1408 | struct ev_loop *loop = ev_default_loop_ptr; |
937 | #endif |
1409 | #endif |
938 | |
1410 | |
939 | #ifndef _WIN32 |
1411 | #ifndef _WIN32 |
940 | ev_ref (EV_A); /* child watcher */ |
1412 | ev_ref (EV_A); /* child watcher */ |
941 | ev_signal_stop (EV_A_ &childev); |
1413 | ev_signal_stop (EV_A_ &childev); |
942 | #endif |
1414 | #endif |
943 | |
1415 | |
944 | ev_ref (EV_A); /* signal watcher */ |
|
|
945 | ev_io_stop (EV_A_ &sigev); |
|
|
946 | |
|
|
947 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
948 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
949 | |
|
|
950 | loop_destroy (EV_A); |
1416 | loop_destroy (EV_A); |
951 | } |
1417 | } |
952 | |
1418 | |
953 | void |
1419 | void |
954 | ev_default_fork (void) |
1420 | ev_default_fork (void) |
955 | { |
1421 | { |
956 | #if EV_MULTIPLICITY |
1422 | #if EV_MULTIPLICITY |
957 | struct ev_loop *loop = default_loop; |
1423 | struct ev_loop *loop = ev_default_loop_ptr; |
958 | #endif |
1424 | #endif |
959 | |
1425 | |
960 | if (method) |
1426 | if (backend) |
961 | postfork = 1; |
1427 | postfork = 1; /* must be in line with ev_loop_fork */ |
962 | } |
1428 | } |
963 | |
1429 | |
964 | /*****************************************************************************/ |
1430 | /*****************************************************************************/ |
965 | |
1431 | |
966 | static int |
1432 | void |
967 | any_pending (EV_P) |
1433 | ev_invoke (EV_P_ void *w, int revents) |
968 | { |
1434 | { |
969 | int pri; |
1435 | EV_CB_INVOKE ((W)w, revents); |
970 | |
|
|
971 | for (pri = NUMPRI; pri--; ) |
|
|
972 | if (pendingcnt [pri]) |
|
|
973 | return 1; |
|
|
974 | |
|
|
975 | return 0; |
|
|
976 | } |
1436 | } |
977 | |
1437 | |
978 | static void |
1438 | void inline_speed |
979 | call_pending (EV_P) |
1439 | call_pending (EV_P) |
980 | { |
1440 | { |
981 | int pri; |
1441 | int pri; |
982 | |
1442 | |
983 | for (pri = NUMPRI; pri--; ) |
1443 | for (pri = NUMPRI; pri--; ) |
984 | while (pendingcnt [pri]) |
1444 | while (pendingcnt [pri]) |
985 | { |
1445 | { |
986 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1446 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
987 | |
1447 | |
988 | if (p->w) |
1448 | if (expect_true (p->w)) |
989 | { |
1449 | { |
|
|
1450 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1451 | |
990 | p->w->pending = 0; |
1452 | p->w->pending = 0; |
991 | EV_CB_INVOKE (p->w, p->events); |
1453 | EV_CB_INVOKE (p->w, p->events); |
992 | } |
1454 | } |
993 | } |
1455 | } |
994 | } |
1456 | } |
995 | |
1457 | |
996 | static void |
1458 | void inline_size |
997 | timers_reify (EV_P) |
1459 | timers_reify (EV_P) |
998 | { |
1460 | { |
999 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1461 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1000 | { |
1462 | { |
1001 | struct ev_timer *w = timers [0]; |
1463 | ev_timer *w = (ev_timer *)timers [0]; |
1002 | |
1464 | |
1003 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1465 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1004 | |
1466 | |
1005 | /* first reschedule or stop timer */ |
1467 | /* first reschedule or stop timer */ |
1006 | if (w->repeat) |
1468 | if (w->repeat) |
1007 | { |
1469 | { |
1008 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1470 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1009 | |
1471 | |
1010 | ((WT)w)->at += w->repeat; |
1472 | ((WT)w)->at += w->repeat; |
1011 | if (((WT)w)->at < mn_now) |
1473 | if (((WT)w)->at < mn_now) |
1012 | ((WT)w)->at = mn_now; |
1474 | ((WT)w)->at = mn_now; |
1013 | |
1475 | |
1014 | downheap ((WT *)timers, timercnt, 0); |
1476 | downheap (timers, timercnt, 0); |
1015 | } |
1477 | } |
1016 | else |
1478 | else |
1017 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1479 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1018 | |
1480 | |
1019 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1481 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1020 | } |
1482 | } |
1021 | } |
1483 | } |
1022 | |
1484 | |
1023 | #if EV_PERIODICS |
1485 | #if EV_PERIODIC_ENABLE |
1024 | static void |
1486 | void inline_size |
1025 | periodics_reify (EV_P) |
1487 | periodics_reify (EV_P) |
1026 | { |
1488 | { |
1027 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1489 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1028 | { |
1490 | { |
1029 | struct ev_periodic *w = periodics [0]; |
1491 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1030 | |
1492 | |
1031 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1493 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1032 | |
1494 | |
1033 | /* first reschedule or stop timer */ |
1495 | /* first reschedule or stop timer */ |
1034 | if (w->reschedule_cb) |
1496 | if (w->reschedule_cb) |
1035 | { |
1497 | { |
1036 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1498 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1037 | |
|
|
1038 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1499 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1039 | downheap ((WT *)periodics, periodiccnt, 0); |
1500 | downheap (periodics, periodiccnt, 0); |
1040 | } |
1501 | } |
1041 | else if (w->interval) |
1502 | else if (w->interval) |
1042 | { |
1503 | { |
1043 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1504 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1505 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1044 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1506 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1045 | downheap ((WT *)periodics, periodiccnt, 0); |
1507 | downheap (periodics, periodiccnt, 0); |
1046 | } |
1508 | } |
1047 | else |
1509 | else |
1048 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1510 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1049 | |
1511 | |
1050 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1512 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1051 | } |
1513 | } |
1052 | } |
1514 | } |
1053 | |
1515 | |
1054 | static void |
1516 | static void noinline |
1055 | periodics_reschedule (EV_P) |
1517 | periodics_reschedule (EV_P) |
1056 | { |
1518 | { |
1057 | int i; |
1519 | int i; |
1058 | |
1520 | |
1059 | /* adjust periodics after time jump */ |
1521 | /* adjust periodics after time jump */ |
1060 | for (i = 0; i < periodiccnt; ++i) |
1522 | for (i = 0; i < periodiccnt; ++i) |
1061 | { |
1523 | { |
1062 | struct ev_periodic *w = periodics [i]; |
1524 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1063 | |
1525 | |
1064 | if (w->reschedule_cb) |
1526 | if (w->reschedule_cb) |
1065 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1527 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1066 | else if (w->interval) |
1528 | else if (w->interval) |
1067 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1529 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1068 | } |
1530 | } |
1069 | |
1531 | |
1070 | /* now rebuild the heap */ |
1532 | /* now rebuild the heap */ |
1071 | for (i = periodiccnt >> 1; i--; ) |
1533 | for (i = periodiccnt >> 1; i--; ) |
1072 | downheap ((WT *)periodics, periodiccnt, i); |
1534 | downheap (periodics, periodiccnt, i); |
1073 | } |
1535 | } |
1074 | #endif |
1536 | #endif |
1075 | |
1537 | |
1076 | inline int |
1538 | #if EV_IDLE_ENABLE |
1077 | time_update_monotonic (EV_P) |
1539 | void inline_size |
|
|
1540 | idle_reify (EV_P) |
1078 | { |
1541 | { |
|
|
1542 | if (expect_false (idleall)) |
|
|
1543 | { |
|
|
1544 | int pri; |
|
|
1545 | |
|
|
1546 | for (pri = NUMPRI; pri--; ) |
|
|
1547 | { |
|
|
1548 | if (pendingcnt [pri]) |
|
|
1549 | break; |
|
|
1550 | |
|
|
1551 | if (idlecnt [pri]) |
|
|
1552 | { |
|
|
1553 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1554 | break; |
|
|
1555 | } |
|
|
1556 | } |
|
|
1557 | } |
|
|
1558 | } |
|
|
1559 | #endif |
|
|
1560 | |
|
|
1561 | void inline_speed |
|
|
1562 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1563 | { |
|
|
1564 | int i; |
|
|
1565 | |
|
|
1566 | #if EV_USE_MONOTONIC |
|
|
1567 | if (expect_true (have_monotonic)) |
|
|
1568 | { |
|
|
1569 | ev_tstamp odiff = rtmn_diff; |
|
|
1570 | |
1079 | mn_now = get_clock (); |
1571 | mn_now = get_clock (); |
1080 | |
1572 | |
|
|
1573 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1574 | /* interpolate in the meantime */ |
1081 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1575 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1082 | { |
1576 | { |
1083 | ev_rt_now = rtmn_diff + mn_now; |
1577 | ev_rt_now = rtmn_diff + mn_now; |
1084 | return 0; |
1578 | return; |
1085 | } |
1579 | } |
1086 | else |
1580 | |
1087 | { |
|
|
1088 | now_floor = mn_now; |
1581 | now_floor = mn_now; |
1089 | ev_rt_now = ev_time (); |
1582 | ev_rt_now = ev_time (); |
1090 | return 1; |
|
|
1091 | } |
|
|
1092 | } |
|
|
1093 | |
1583 | |
1094 | static void |
1584 | /* loop a few times, before making important decisions. |
1095 | time_update (EV_P) |
1585 | * on the choice of "4": one iteration isn't enough, |
1096 | { |
1586 | * in case we get preempted during the calls to |
1097 | int i; |
1587 | * ev_time and get_clock. a second call is almost guaranteed |
1098 | |
1588 | * to succeed in that case, though. and looping a few more times |
1099 | #if EV_USE_MONOTONIC |
1589 | * doesn't hurt either as we only do this on time-jumps or |
1100 | if (expect_true (have_monotonic)) |
1590 | * in the unlikely event of having been preempted here. |
1101 | { |
1591 | */ |
1102 | if (time_update_monotonic (EV_A)) |
1592 | for (i = 4; --i; ) |
1103 | { |
1593 | { |
1104 | ev_tstamp odiff = rtmn_diff; |
|
|
1105 | |
|
|
1106 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
1107 | { |
|
|
1108 | rtmn_diff = ev_rt_now - mn_now; |
1594 | rtmn_diff = ev_rt_now - mn_now; |
1109 | |
1595 | |
1110 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1596 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1111 | return; /* all is well */ |
1597 | return; /* all is well */ |
1112 | |
1598 | |
1113 | ev_rt_now = ev_time (); |
1599 | ev_rt_now = ev_time (); |
1114 | mn_now = get_clock (); |
1600 | mn_now = get_clock (); |
1115 | now_floor = mn_now; |
1601 | now_floor = mn_now; |
1116 | } |
1602 | } |
1117 | |
1603 | |
1118 | # if EV_PERIODICS |
1604 | # if EV_PERIODIC_ENABLE |
|
|
1605 | periodics_reschedule (EV_A); |
|
|
1606 | # endif |
|
|
1607 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1608 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1609 | } |
|
|
1610 | else |
|
|
1611 | #endif |
|
|
1612 | { |
|
|
1613 | ev_rt_now = ev_time (); |
|
|
1614 | |
|
|
1615 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1616 | { |
|
|
1617 | #if EV_PERIODIC_ENABLE |
1119 | periodics_reschedule (EV_A); |
1618 | periodics_reschedule (EV_A); |
1120 | # endif |
1619 | #endif |
1121 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1122 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1123 | } |
|
|
1124 | } |
|
|
1125 | else |
|
|
1126 | #endif |
|
|
1127 | { |
|
|
1128 | ev_rt_now = ev_time (); |
|
|
1129 | |
|
|
1130 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1131 | { |
|
|
1132 | #if EV_PERIODICS |
|
|
1133 | periodics_reschedule (EV_A); |
|
|
1134 | #endif |
|
|
1135 | |
|
|
1136 | /* adjust timers. this is easy, as the offset is the same for all */ |
1620 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1137 | for (i = 0; i < timercnt; ++i) |
1621 | for (i = 0; i < timercnt; ++i) |
1138 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1622 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1139 | } |
1623 | } |
1140 | |
1624 | |
1141 | mn_now = ev_rt_now; |
1625 | mn_now = ev_rt_now; |
… | |
… | |
1157 | static int loop_done; |
1641 | static int loop_done; |
1158 | |
1642 | |
1159 | void |
1643 | void |
1160 | ev_loop (EV_P_ int flags) |
1644 | ev_loop (EV_P_ int flags) |
1161 | { |
1645 | { |
1162 | double block; |
1646 | loop_done = EVUNLOOP_CANCEL; |
1163 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1647 | |
|
|
1648 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1164 | |
1649 | |
1165 | do |
1650 | do |
1166 | { |
1651 | { |
|
|
1652 | #ifndef _WIN32 |
|
|
1653 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1654 | if (expect_false (getpid () != curpid)) |
|
|
1655 | { |
|
|
1656 | curpid = getpid (); |
|
|
1657 | postfork = 1; |
|
|
1658 | } |
|
|
1659 | #endif |
|
|
1660 | |
|
|
1661 | #if EV_FORK_ENABLE |
|
|
1662 | /* we might have forked, so queue fork handlers */ |
|
|
1663 | if (expect_false (postfork)) |
|
|
1664 | if (forkcnt) |
|
|
1665 | { |
|
|
1666 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1667 | call_pending (EV_A); |
|
|
1668 | } |
|
|
1669 | #endif |
|
|
1670 | |
1167 | /* queue check watchers (and execute them) */ |
1671 | /* queue prepare watchers (and execute them) */ |
1168 | if (expect_false (preparecnt)) |
1672 | if (expect_false (preparecnt)) |
1169 | { |
1673 | { |
1170 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1674 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1171 | call_pending (EV_A); |
1675 | call_pending (EV_A); |
1172 | } |
1676 | } |
1173 | |
1677 | |
|
|
1678 | if (expect_false (!activecnt)) |
|
|
1679 | break; |
|
|
1680 | |
1174 | /* we might have forked, so reify kernel state if necessary */ |
1681 | /* we might have forked, so reify kernel state if necessary */ |
1175 | if (expect_false (postfork)) |
1682 | if (expect_false (postfork)) |
1176 | loop_fork (EV_A); |
1683 | loop_fork (EV_A); |
1177 | |
1684 | |
1178 | /* update fd-related kernel structures */ |
1685 | /* update fd-related kernel structures */ |
1179 | fd_reify (EV_A); |
1686 | fd_reify (EV_A); |
1180 | |
1687 | |
1181 | /* calculate blocking time */ |
1688 | /* calculate blocking time */ |
|
|
1689 | { |
|
|
1690 | ev_tstamp waittime = 0.; |
|
|
1691 | ev_tstamp sleeptime = 0.; |
1182 | |
1692 | |
1183 | /* we only need this for !monotonic clock or timers, but as we basically |
1693 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1184 | always have timers, we just calculate it always */ |
|
|
1185 | #if EV_USE_MONOTONIC |
|
|
1186 | if (expect_true (have_monotonic)) |
|
|
1187 | time_update_monotonic (EV_A); |
|
|
1188 | else |
|
|
1189 | #endif |
|
|
1190 | { |
1694 | { |
1191 | ev_rt_now = ev_time (); |
1695 | /* update time to cancel out callback processing overhead */ |
1192 | mn_now = ev_rt_now; |
1696 | time_update (EV_A_ 1e100); |
1193 | } |
|
|
1194 | |
1697 | |
1195 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1196 | block = 0.; |
|
|
1197 | else |
|
|
1198 | { |
|
|
1199 | block = MAX_BLOCKTIME; |
1698 | waittime = MAX_BLOCKTIME; |
1200 | |
1699 | |
1201 | if (timercnt) |
1700 | if (timercnt) |
1202 | { |
1701 | { |
1203 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1702 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1204 | if (block > to) block = to; |
1703 | if (waittime > to) waittime = to; |
1205 | } |
1704 | } |
1206 | |
1705 | |
1207 | #if EV_PERIODICS |
1706 | #if EV_PERIODIC_ENABLE |
1208 | if (periodiccnt) |
1707 | if (periodiccnt) |
1209 | { |
1708 | { |
1210 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1709 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1211 | if (block > to) block = to; |
1710 | if (waittime > to) waittime = to; |
1212 | } |
1711 | } |
1213 | #endif |
1712 | #endif |
1214 | |
1713 | |
1215 | if (block < 0.) block = 0.; |
1714 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1715 | waittime = timeout_blocktime; |
|
|
1716 | |
|
|
1717 | sleeptime = waittime - backend_fudge; |
|
|
1718 | |
|
|
1719 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1720 | sleeptime = io_blocktime; |
|
|
1721 | |
|
|
1722 | if (sleeptime) |
|
|
1723 | { |
|
|
1724 | ev_sleep (sleeptime); |
|
|
1725 | waittime -= sleeptime; |
|
|
1726 | } |
1216 | } |
1727 | } |
1217 | |
1728 | |
1218 | method_poll (EV_A_ block); |
1729 | ++loop_count; |
|
|
1730 | backend_poll (EV_A_ waittime); |
1219 | |
1731 | |
1220 | /* update ev_rt_now, do magic */ |
1732 | /* update ev_rt_now, do magic */ |
1221 | time_update (EV_A); |
1733 | time_update (EV_A_ waittime + sleeptime); |
|
|
1734 | } |
1222 | |
1735 | |
1223 | /* queue pending timers and reschedule them */ |
1736 | /* queue pending timers and reschedule them */ |
1224 | timers_reify (EV_A); /* relative timers called last */ |
1737 | timers_reify (EV_A); /* relative timers called last */ |
1225 | #if EV_PERIODICS |
1738 | #if EV_PERIODIC_ENABLE |
1226 | periodics_reify (EV_A); /* absolute timers called first */ |
1739 | periodics_reify (EV_A); /* absolute timers called first */ |
1227 | #endif |
1740 | #endif |
1228 | |
1741 | |
|
|
1742 | #if EV_IDLE_ENABLE |
1229 | /* queue idle watchers unless io or timers are pending */ |
1743 | /* queue idle watchers unless other events are pending */ |
1230 | if (idlecnt && !any_pending (EV_A)) |
1744 | idle_reify (EV_A); |
1231 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1745 | #endif |
1232 | |
1746 | |
1233 | /* queue check watchers, to be executed first */ |
1747 | /* queue check watchers, to be executed first */ |
1234 | if (checkcnt) |
1748 | if (expect_false (checkcnt)) |
1235 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1749 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1236 | |
1750 | |
1237 | call_pending (EV_A); |
1751 | call_pending (EV_A); |
1238 | } |
1752 | } |
1239 | while (activecnt && !loop_done); |
1753 | while (expect_true ( |
|
|
1754 | activecnt |
|
|
1755 | && !loop_done |
|
|
1756 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1757 | )); |
1240 | |
1758 | |
1241 | if (loop_done != 2) |
1759 | if (loop_done == EVUNLOOP_ONE) |
1242 | loop_done = 0; |
1760 | loop_done = EVUNLOOP_CANCEL; |
1243 | } |
1761 | } |
1244 | |
1762 | |
1245 | void |
1763 | void |
1246 | ev_unloop (EV_P_ int how) |
1764 | ev_unloop (EV_P_ int how) |
1247 | { |
1765 | { |
1248 | loop_done = how; |
1766 | loop_done = how; |
1249 | } |
1767 | } |
1250 | |
1768 | |
1251 | /*****************************************************************************/ |
1769 | /*****************************************************************************/ |
1252 | |
1770 | |
1253 | inline void |
1771 | void inline_size |
1254 | wlist_add (WL *head, WL elem) |
1772 | wlist_add (WL *head, WL elem) |
1255 | { |
1773 | { |
1256 | elem->next = *head; |
1774 | elem->next = *head; |
1257 | *head = elem; |
1775 | *head = elem; |
1258 | } |
1776 | } |
1259 | |
1777 | |
1260 | inline void |
1778 | void inline_size |
1261 | wlist_del (WL *head, WL elem) |
1779 | wlist_del (WL *head, WL elem) |
1262 | { |
1780 | { |
1263 | while (*head) |
1781 | while (*head) |
1264 | { |
1782 | { |
1265 | if (*head == elem) |
1783 | if (*head == elem) |
… | |
… | |
1270 | |
1788 | |
1271 | head = &(*head)->next; |
1789 | head = &(*head)->next; |
1272 | } |
1790 | } |
1273 | } |
1791 | } |
1274 | |
1792 | |
1275 | inline void |
1793 | void inline_speed |
1276 | ev_clear_pending (EV_P_ W w) |
1794 | clear_pending (EV_P_ W w) |
1277 | { |
1795 | { |
1278 | if (w->pending) |
1796 | if (w->pending) |
1279 | { |
1797 | { |
1280 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1798 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1281 | w->pending = 0; |
1799 | w->pending = 0; |
1282 | } |
1800 | } |
1283 | } |
1801 | } |
1284 | |
1802 | |
1285 | inline void |
1803 | int |
|
|
1804 | ev_clear_pending (EV_P_ void *w) |
|
|
1805 | { |
|
|
1806 | W w_ = (W)w; |
|
|
1807 | int pending = w_->pending; |
|
|
1808 | |
|
|
1809 | if (expect_true (pending)) |
|
|
1810 | { |
|
|
1811 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1812 | w_->pending = 0; |
|
|
1813 | p->w = 0; |
|
|
1814 | return p->events; |
|
|
1815 | } |
|
|
1816 | else |
|
|
1817 | return 0; |
|
|
1818 | } |
|
|
1819 | |
|
|
1820 | void inline_size |
|
|
1821 | pri_adjust (EV_P_ W w) |
|
|
1822 | { |
|
|
1823 | int pri = w->priority; |
|
|
1824 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1825 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1826 | w->priority = pri; |
|
|
1827 | } |
|
|
1828 | |
|
|
1829 | void inline_speed |
1286 | ev_start (EV_P_ W w, int active) |
1830 | ev_start (EV_P_ W w, int active) |
1287 | { |
1831 | { |
1288 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1832 | pri_adjust (EV_A_ w); |
1289 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1290 | |
|
|
1291 | w->active = active; |
1833 | w->active = active; |
1292 | ev_ref (EV_A); |
1834 | ev_ref (EV_A); |
1293 | } |
1835 | } |
1294 | |
1836 | |
1295 | inline void |
1837 | void inline_size |
1296 | ev_stop (EV_P_ W w) |
1838 | ev_stop (EV_P_ W w) |
1297 | { |
1839 | { |
1298 | ev_unref (EV_A); |
1840 | ev_unref (EV_A); |
1299 | w->active = 0; |
1841 | w->active = 0; |
1300 | } |
1842 | } |
1301 | |
1843 | |
1302 | /*****************************************************************************/ |
1844 | /*****************************************************************************/ |
1303 | |
1845 | |
1304 | void |
1846 | void noinline |
1305 | ev_io_start (EV_P_ struct ev_io *w) |
1847 | ev_io_start (EV_P_ ev_io *w) |
1306 | { |
1848 | { |
1307 | int fd = w->fd; |
1849 | int fd = w->fd; |
1308 | |
1850 | |
1309 | if (ev_is_active (w)) |
1851 | if (expect_false (ev_is_active (w))) |
1310 | return; |
1852 | return; |
1311 | |
1853 | |
1312 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1854 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1313 | |
1855 | |
1314 | ev_start (EV_A_ (W)w, 1); |
1856 | ev_start (EV_A_ (W)w, 1); |
1315 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1857 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1316 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1858 | wlist_add (&anfds[fd].head, (WL)w); |
1317 | |
1859 | |
1318 | fd_change (EV_A_ fd); |
1860 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1861 | w->events &= ~EV_IOFDSET; |
1319 | } |
1862 | } |
1320 | |
1863 | |
1321 | void |
1864 | void noinline |
1322 | ev_io_stop (EV_P_ struct ev_io *w) |
1865 | ev_io_stop (EV_P_ ev_io *w) |
1323 | { |
1866 | { |
1324 | ev_clear_pending (EV_A_ (W)w); |
1867 | clear_pending (EV_A_ (W)w); |
1325 | if (!ev_is_active (w)) |
1868 | if (expect_false (!ev_is_active (w))) |
1326 | return; |
1869 | return; |
1327 | |
1870 | |
1328 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1871 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1329 | |
1872 | |
1330 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1873 | wlist_del (&anfds[w->fd].head, (WL)w); |
1331 | ev_stop (EV_A_ (W)w); |
1874 | ev_stop (EV_A_ (W)w); |
1332 | |
1875 | |
1333 | fd_change (EV_A_ w->fd); |
1876 | fd_change (EV_A_ w->fd, 1); |
1334 | } |
1877 | } |
1335 | |
1878 | |
1336 | void |
1879 | void noinline |
1337 | ev_timer_start (EV_P_ struct ev_timer *w) |
1880 | ev_timer_start (EV_P_ ev_timer *w) |
1338 | { |
1881 | { |
1339 | if (ev_is_active (w)) |
1882 | if (expect_false (ev_is_active (w))) |
1340 | return; |
1883 | return; |
1341 | |
1884 | |
1342 | ((WT)w)->at += mn_now; |
1885 | ((WT)w)->at += mn_now; |
1343 | |
1886 | |
1344 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1887 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1345 | |
1888 | |
1346 | ev_start (EV_A_ (W)w, ++timercnt); |
1889 | ev_start (EV_A_ (W)w, ++timercnt); |
1347 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
1890 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1348 | timers [timercnt - 1] = w; |
1891 | timers [timercnt - 1] = (WT)w; |
1349 | upheap ((WT *)timers, timercnt - 1); |
1892 | upheap (timers, timercnt - 1); |
1350 | |
1893 | |
1351 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1894 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1352 | } |
1895 | } |
1353 | |
1896 | |
1354 | void |
1897 | void noinline |
1355 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1898 | ev_timer_stop (EV_P_ ev_timer *w) |
1356 | { |
1899 | { |
1357 | ev_clear_pending (EV_A_ (W)w); |
1900 | clear_pending (EV_A_ (W)w); |
1358 | if (!ev_is_active (w)) |
1901 | if (expect_false (!ev_is_active (w))) |
1359 | return; |
1902 | return; |
1360 | |
1903 | |
1361 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1904 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1362 | |
1905 | |
1363 | if (((W)w)->active < timercnt--) |
1906 | { |
|
|
1907 | int active = ((W)w)->active; |
|
|
1908 | |
|
|
1909 | if (expect_true (--active < --timercnt)) |
1364 | { |
1910 | { |
1365 | timers [((W)w)->active - 1] = timers [timercnt]; |
1911 | timers [active] = timers [timercnt]; |
1366 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1912 | adjustheap (timers, timercnt, active); |
1367 | } |
1913 | } |
|
|
1914 | } |
1368 | |
1915 | |
1369 | ((WT)w)->at -= mn_now; |
1916 | ((WT)w)->at -= mn_now; |
1370 | |
1917 | |
1371 | ev_stop (EV_A_ (W)w); |
1918 | ev_stop (EV_A_ (W)w); |
1372 | } |
1919 | } |
1373 | |
1920 | |
1374 | void |
1921 | void noinline |
1375 | ev_timer_again (EV_P_ struct ev_timer *w) |
1922 | ev_timer_again (EV_P_ ev_timer *w) |
1376 | { |
1923 | { |
1377 | if (ev_is_active (w)) |
1924 | if (ev_is_active (w)) |
1378 | { |
1925 | { |
1379 | if (w->repeat) |
1926 | if (w->repeat) |
1380 | { |
1927 | { |
1381 | ((WT)w)->at = mn_now + w->repeat; |
1928 | ((WT)w)->at = mn_now + w->repeat; |
1382 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1929 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1383 | } |
1930 | } |
1384 | else |
1931 | else |
1385 | ev_timer_stop (EV_A_ w); |
1932 | ev_timer_stop (EV_A_ w); |
1386 | } |
1933 | } |
1387 | else if (w->repeat) |
1934 | else if (w->repeat) |
|
|
1935 | { |
|
|
1936 | w->at = w->repeat; |
1388 | ev_timer_start (EV_A_ w); |
1937 | ev_timer_start (EV_A_ w); |
|
|
1938 | } |
1389 | } |
1939 | } |
1390 | |
1940 | |
1391 | #if EV_PERIODICS |
1941 | #if EV_PERIODIC_ENABLE |
1392 | void |
1942 | void noinline |
1393 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1943 | ev_periodic_start (EV_P_ ev_periodic *w) |
1394 | { |
1944 | { |
1395 | if (ev_is_active (w)) |
1945 | if (expect_false (ev_is_active (w))) |
1396 | return; |
1946 | return; |
1397 | |
1947 | |
1398 | if (w->reschedule_cb) |
1948 | if (w->reschedule_cb) |
1399 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1949 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1400 | else if (w->interval) |
1950 | else if (w->interval) |
1401 | { |
1951 | { |
1402 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1952 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1403 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1953 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1404 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1954 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1405 | } |
1955 | } |
|
|
1956 | else |
|
|
1957 | ((WT)w)->at = w->offset; |
1406 | |
1958 | |
1407 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1959 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1408 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1960 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1409 | periodics [periodiccnt - 1] = w; |
1961 | periodics [periodiccnt - 1] = (WT)w; |
1410 | upheap ((WT *)periodics, periodiccnt - 1); |
1962 | upheap (periodics, periodiccnt - 1); |
1411 | |
1963 | |
1412 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1964 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1413 | } |
1965 | } |
1414 | |
1966 | |
1415 | void |
1967 | void noinline |
1416 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1968 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1417 | { |
1969 | { |
1418 | ev_clear_pending (EV_A_ (W)w); |
1970 | clear_pending (EV_A_ (W)w); |
1419 | if (!ev_is_active (w)) |
1971 | if (expect_false (!ev_is_active (w))) |
1420 | return; |
1972 | return; |
1421 | |
1973 | |
1422 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1974 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1423 | |
1975 | |
1424 | if (((W)w)->active < periodiccnt--) |
1976 | { |
|
|
1977 | int active = ((W)w)->active; |
|
|
1978 | |
|
|
1979 | if (expect_true (--active < --periodiccnt)) |
1425 | { |
1980 | { |
1426 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1981 | periodics [active] = periodics [periodiccnt]; |
1427 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1982 | adjustheap (periodics, periodiccnt, active); |
1428 | } |
1983 | } |
|
|
1984 | } |
1429 | |
1985 | |
1430 | ev_stop (EV_A_ (W)w); |
1986 | ev_stop (EV_A_ (W)w); |
1431 | } |
1987 | } |
1432 | |
1988 | |
1433 | void |
1989 | void noinline |
1434 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
1990 | ev_periodic_again (EV_P_ ev_periodic *w) |
1435 | { |
1991 | { |
1436 | /* TODO: use adjustheap and recalculation */ |
1992 | /* TODO: use adjustheap and recalculation */ |
1437 | ev_periodic_stop (EV_A_ w); |
1993 | ev_periodic_stop (EV_A_ w); |
1438 | ev_periodic_start (EV_A_ w); |
1994 | ev_periodic_start (EV_A_ w); |
1439 | } |
1995 | } |
1440 | #endif |
1996 | #endif |
1441 | |
1997 | |
1442 | void |
|
|
1443 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1444 | { |
|
|
1445 | if (ev_is_active (w)) |
|
|
1446 | return; |
|
|
1447 | |
|
|
1448 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1449 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1450 | idles [idlecnt - 1] = w; |
|
|
1451 | } |
|
|
1452 | |
|
|
1453 | void |
|
|
1454 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1455 | { |
|
|
1456 | ev_clear_pending (EV_A_ (W)w); |
|
|
1457 | if (!ev_is_active (w)) |
|
|
1458 | return; |
|
|
1459 | |
|
|
1460 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1461 | ev_stop (EV_A_ (W)w); |
|
|
1462 | } |
|
|
1463 | |
|
|
1464 | void |
|
|
1465 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1466 | { |
|
|
1467 | if (ev_is_active (w)) |
|
|
1468 | return; |
|
|
1469 | |
|
|
1470 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1471 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1472 | prepares [preparecnt - 1] = w; |
|
|
1473 | } |
|
|
1474 | |
|
|
1475 | void |
|
|
1476 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1477 | { |
|
|
1478 | ev_clear_pending (EV_A_ (W)w); |
|
|
1479 | if (!ev_is_active (w)) |
|
|
1480 | return; |
|
|
1481 | |
|
|
1482 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1483 | ev_stop (EV_A_ (W)w); |
|
|
1484 | } |
|
|
1485 | |
|
|
1486 | void |
|
|
1487 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1488 | { |
|
|
1489 | if (ev_is_active (w)) |
|
|
1490 | return; |
|
|
1491 | |
|
|
1492 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1493 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1494 | checks [checkcnt - 1] = w; |
|
|
1495 | } |
|
|
1496 | |
|
|
1497 | void |
|
|
1498 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1499 | { |
|
|
1500 | ev_clear_pending (EV_A_ (W)w); |
|
|
1501 | if (!ev_is_active (w)) |
|
|
1502 | return; |
|
|
1503 | |
|
|
1504 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1505 | ev_stop (EV_A_ (W)w); |
|
|
1506 | } |
|
|
1507 | |
|
|
1508 | #ifndef SA_RESTART |
1998 | #ifndef SA_RESTART |
1509 | # define SA_RESTART 0 |
1999 | # define SA_RESTART 0 |
1510 | #endif |
2000 | #endif |
1511 | |
2001 | |
1512 | void |
2002 | void noinline |
1513 | ev_signal_start (EV_P_ struct ev_signal *w) |
2003 | ev_signal_start (EV_P_ ev_signal *w) |
1514 | { |
2004 | { |
1515 | #if EV_MULTIPLICITY |
2005 | #if EV_MULTIPLICITY |
1516 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
2006 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1517 | #endif |
2007 | #endif |
1518 | if (ev_is_active (w)) |
2008 | if (expect_false (ev_is_active (w))) |
1519 | return; |
2009 | return; |
1520 | |
2010 | |
1521 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2011 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1522 | |
2012 | |
|
|
2013 | evpipe_init (EV_A); |
|
|
2014 | |
|
|
2015 | { |
|
|
2016 | #ifndef _WIN32 |
|
|
2017 | sigset_t full, prev; |
|
|
2018 | sigfillset (&full); |
|
|
2019 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2020 | #endif |
|
|
2021 | |
|
|
2022 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2023 | |
|
|
2024 | #ifndef _WIN32 |
|
|
2025 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2026 | #endif |
|
|
2027 | } |
|
|
2028 | |
1523 | ev_start (EV_A_ (W)w, 1); |
2029 | ev_start (EV_A_ (W)w, 1); |
1524 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1525 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2030 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1526 | |
2031 | |
1527 | if (!((WL)w)->next) |
2032 | if (!((WL)w)->next) |
1528 | { |
2033 | { |
1529 | #if _WIN32 |
2034 | #if _WIN32 |
1530 | signal (w->signum, sighandler); |
2035 | signal (w->signum, ev_sighandler); |
1531 | #else |
2036 | #else |
1532 | struct sigaction sa; |
2037 | struct sigaction sa; |
1533 | sa.sa_handler = sighandler; |
2038 | sa.sa_handler = ev_sighandler; |
1534 | sigfillset (&sa.sa_mask); |
2039 | sigfillset (&sa.sa_mask); |
1535 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2040 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1536 | sigaction (w->signum, &sa, 0); |
2041 | sigaction (w->signum, &sa, 0); |
1537 | #endif |
2042 | #endif |
1538 | } |
2043 | } |
1539 | } |
2044 | } |
1540 | |
2045 | |
1541 | void |
2046 | void noinline |
1542 | ev_signal_stop (EV_P_ struct ev_signal *w) |
2047 | ev_signal_stop (EV_P_ ev_signal *w) |
1543 | { |
2048 | { |
1544 | ev_clear_pending (EV_A_ (W)w); |
2049 | clear_pending (EV_A_ (W)w); |
1545 | if (!ev_is_active (w)) |
2050 | if (expect_false (!ev_is_active (w))) |
1546 | return; |
2051 | return; |
1547 | |
2052 | |
1548 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2053 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1549 | ev_stop (EV_A_ (W)w); |
2054 | ev_stop (EV_A_ (W)w); |
1550 | |
2055 | |
1551 | if (!signals [w->signum - 1].head) |
2056 | if (!signals [w->signum - 1].head) |
1552 | signal (w->signum, SIG_DFL); |
2057 | signal (w->signum, SIG_DFL); |
1553 | } |
2058 | } |
1554 | |
2059 | |
1555 | void |
2060 | void |
1556 | ev_child_start (EV_P_ struct ev_child *w) |
2061 | ev_child_start (EV_P_ ev_child *w) |
1557 | { |
2062 | { |
1558 | #if EV_MULTIPLICITY |
2063 | #if EV_MULTIPLICITY |
1559 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
2064 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1560 | #endif |
2065 | #endif |
1561 | if (ev_is_active (w)) |
2066 | if (expect_false (ev_is_active (w))) |
1562 | return; |
2067 | return; |
1563 | |
2068 | |
1564 | ev_start (EV_A_ (W)w, 1); |
2069 | ev_start (EV_A_ (W)w, 1); |
1565 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2070 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1566 | } |
2071 | } |
1567 | |
2072 | |
1568 | void |
2073 | void |
1569 | ev_child_stop (EV_P_ struct ev_child *w) |
2074 | ev_child_stop (EV_P_ ev_child *w) |
1570 | { |
2075 | { |
1571 | ev_clear_pending (EV_A_ (W)w); |
2076 | clear_pending (EV_A_ (W)w); |
1572 | if (!ev_is_active (w)) |
2077 | if (expect_false (!ev_is_active (w))) |
1573 | return; |
2078 | return; |
1574 | |
2079 | |
1575 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2080 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1576 | ev_stop (EV_A_ (W)w); |
2081 | ev_stop (EV_A_ (W)w); |
1577 | } |
2082 | } |
1578 | |
2083 | |
|
|
2084 | #if EV_STAT_ENABLE |
|
|
2085 | |
|
|
2086 | # ifdef _WIN32 |
|
|
2087 | # undef lstat |
|
|
2088 | # define lstat(a,b) _stati64 (a,b) |
|
|
2089 | # endif |
|
|
2090 | |
|
|
2091 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2092 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2093 | |
|
|
2094 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2095 | |
|
|
2096 | #if EV_USE_INOTIFY |
|
|
2097 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2098 | |
|
|
2099 | static void noinline |
|
|
2100 | infy_add (EV_P_ ev_stat *w) |
|
|
2101 | { |
|
|
2102 | 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); |
|
|
2103 | |
|
|
2104 | if (w->wd < 0) |
|
|
2105 | { |
|
|
2106 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2107 | |
|
|
2108 | /* monitor some parent directory for speedup hints */ |
|
|
2109 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2110 | { |
|
|
2111 | char path [4096]; |
|
|
2112 | strcpy (path, w->path); |
|
|
2113 | |
|
|
2114 | do |
|
|
2115 | { |
|
|
2116 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2117 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2118 | |
|
|
2119 | char *pend = strrchr (path, '/'); |
|
|
2120 | |
|
|
2121 | if (!pend) |
|
|
2122 | break; /* whoops, no '/', complain to your admin */ |
|
|
2123 | |
|
|
2124 | *pend = 0; |
|
|
2125 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2126 | } |
|
|
2127 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2128 | } |
|
|
2129 | } |
|
|
2130 | else |
|
|
2131 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2132 | |
|
|
2133 | if (w->wd >= 0) |
|
|
2134 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2135 | } |
|
|
2136 | |
|
|
2137 | static void noinline |
|
|
2138 | infy_del (EV_P_ ev_stat *w) |
|
|
2139 | { |
|
|
2140 | int slot; |
|
|
2141 | int wd = w->wd; |
|
|
2142 | |
|
|
2143 | if (wd < 0) |
|
|
2144 | return; |
|
|
2145 | |
|
|
2146 | w->wd = -2; |
|
|
2147 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2148 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2149 | |
|
|
2150 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2151 | inotify_rm_watch (fs_fd, wd); |
|
|
2152 | } |
|
|
2153 | |
|
|
2154 | static void noinline |
|
|
2155 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2156 | { |
|
|
2157 | if (slot < 0) |
|
|
2158 | /* overflow, need to check for all hahs slots */ |
|
|
2159 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2160 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2161 | else |
|
|
2162 | { |
|
|
2163 | WL w_; |
|
|
2164 | |
|
|
2165 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2166 | { |
|
|
2167 | ev_stat *w = (ev_stat *)w_; |
|
|
2168 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2169 | |
|
|
2170 | if (w->wd == wd || wd == -1) |
|
|
2171 | { |
|
|
2172 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2173 | { |
|
|
2174 | w->wd = -1; |
|
|
2175 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2176 | } |
|
|
2177 | |
|
|
2178 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2179 | } |
|
|
2180 | } |
|
|
2181 | } |
|
|
2182 | } |
|
|
2183 | |
|
|
2184 | static void |
|
|
2185 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2186 | { |
|
|
2187 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2188 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2189 | int ofs; |
|
|
2190 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2191 | |
|
|
2192 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2193 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2194 | } |
|
|
2195 | |
|
|
2196 | void inline_size |
|
|
2197 | infy_init (EV_P) |
|
|
2198 | { |
|
|
2199 | if (fs_fd != -2) |
|
|
2200 | return; |
|
|
2201 | |
|
|
2202 | fs_fd = inotify_init (); |
|
|
2203 | |
|
|
2204 | if (fs_fd >= 0) |
|
|
2205 | { |
|
|
2206 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2207 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2208 | ev_io_start (EV_A_ &fs_w); |
|
|
2209 | } |
|
|
2210 | } |
|
|
2211 | |
|
|
2212 | void inline_size |
|
|
2213 | infy_fork (EV_P) |
|
|
2214 | { |
|
|
2215 | int slot; |
|
|
2216 | |
|
|
2217 | if (fs_fd < 0) |
|
|
2218 | return; |
|
|
2219 | |
|
|
2220 | close (fs_fd); |
|
|
2221 | fs_fd = inotify_init (); |
|
|
2222 | |
|
|
2223 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2224 | { |
|
|
2225 | WL w_ = fs_hash [slot].head; |
|
|
2226 | fs_hash [slot].head = 0; |
|
|
2227 | |
|
|
2228 | while (w_) |
|
|
2229 | { |
|
|
2230 | ev_stat *w = (ev_stat *)w_; |
|
|
2231 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2232 | |
|
|
2233 | w->wd = -1; |
|
|
2234 | |
|
|
2235 | if (fs_fd >= 0) |
|
|
2236 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2237 | else |
|
|
2238 | ev_timer_start (EV_A_ &w->timer); |
|
|
2239 | } |
|
|
2240 | |
|
|
2241 | } |
|
|
2242 | } |
|
|
2243 | |
|
|
2244 | #endif |
|
|
2245 | |
|
|
2246 | void |
|
|
2247 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2248 | { |
|
|
2249 | if (lstat (w->path, &w->attr) < 0) |
|
|
2250 | w->attr.st_nlink = 0; |
|
|
2251 | else if (!w->attr.st_nlink) |
|
|
2252 | w->attr.st_nlink = 1; |
|
|
2253 | } |
|
|
2254 | |
|
|
2255 | static void noinline |
|
|
2256 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2257 | { |
|
|
2258 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2259 | |
|
|
2260 | /* we copy this here each the time so that */ |
|
|
2261 | /* prev has the old value when the callback gets invoked */ |
|
|
2262 | w->prev = w->attr; |
|
|
2263 | ev_stat_stat (EV_A_ w); |
|
|
2264 | |
|
|
2265 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2266 | if ( |
|
|
2267 | w->prev.st_dev != w->attr.st_dev |
|
|
2268 | || w->prev.st_ino != w->attr.st_ino |
|
|
2269 | || w->prev.st_mode != w->attr.st_mode |
|
|
2270 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2271 | || w->prev.st_uid != w->attr.st_uid |
|
|
2272 | || w->prev.st_gid != w->attr.st_gid |
|
|
2273 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2274 | || w->prev.st_size != w->attr.st_size |
|
|
2275 | || w->prev.st_atime != w->attr.st_atime |
|
|
2276 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2277 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2278 | ) { |
|
|
2279 | #if EV_USE_INOTIFY |
|
|
2280 | infy_del (EV_A_ w); |
|
|
2281 | infy_add (EV_A_ w); |
|
|
2282 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2283 | #endif |
|
|
2284 | |
|
|
2285 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2286 | } |
|
|
2287 | } |
|
|
2288 | |
|
|
2289 | void |
|
|
2290 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2291 | { |
|
|
2292 | if (expect_false (ev_is_active (w))) |
|
|
2293 | return; |
|
|
2294 | |
|
|
2295 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2296 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2297 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2298 | |
|
|
2299 | ev_stat_stat (EV_A_ w); |
|
|
2300 | |
|
|
2301 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2302 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2303 | |
|
|
2304 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2305 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2306 | |
|
|
2307 | #if EV_USE_INOTIFY |
|
|
2308 | infy_init (EV_A); |
|
|
2309 | |
|
|
2310 | if (fs_fd >= 0) |
|
|
2311 | infy_add (EV_A_ w); |
|
|
2312 | else |
|
|
2313 | #endif |
|
|
2314 | ev_timer_start (EV_A_ &w->timer); |
|
|
2315 | |
|
|
2316 | ev_start (EV_A_ (W)w, 1); |
|
|
2317 | } |
|
|
2318 | |
|
|
2319 | void |
|
|
2320 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2321 | { |
|
|
2322 | clear_pending (EV_A_ (W)w); |
|
|
2323 | if (expect_false (!ev_is_active (w))) |
|
|
2324 | return; |
|
|
2325 | |
|
|
2326 | #if EV_USE_INOTIFY |
|
|
2327 | infy_del (EV_A_ w); |
|
|
2328 | #endif |
|
|
2329 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2330 | |
|
|
2331 | ev_stop (EV_A_ (W)w); |
|
|
2332 | } |
|
|
2333 | #endif |
|
|
2334 | |
|
|
2335 | #if EV_IDLE_ENABLE |
|
|
2336 | void |
|
|
2337 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2338 | { |
|
|
2339 | if (expect_false (ev_is_active (w))) |
|
|
2340 | return; |
|
|
2341 | |
|
|
2342 | pri_adjust (EV_A_ (W)w); |
|
|
2343 | |
|
|
2344 | { |
|
|
2345 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2346 | |
|
|
2347 | ++idleall; |
|
|
2348 | ev_start (EV_A_ (W)w, active); |
|
|
2349 | |
|
|
2350 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2351 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2352 | } |
|
|
2353 | } |
|
|
2354 | |
|
|
2355 | void |
|
|
2356 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2357 | { |
|
|
2358 | clear_pending (EV_A_ (W)w); |
|
|
2359 | if (expect_false (!ev_is_active (w))) |
|
|
2360 | return; |
|
|
2361 | |
|
|
2362 | { |
|
|
2363 | int active = ((W)w)->active; |
|
|
2364 | |
|
|
2365 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2366 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2367 | |
|
|
2368 | ev_stop (EV_A_ (W)w); |
|
|
2369 | --idleall; |
|
|
2370 | } |
|
|
2371 | } |
|
|
2372 | #endif |
|
|
2373 | |
|
|
2374 | void |
|
|
2375 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2376 | { |
|
|
2377 | if (expect_false (ev_is_active (w))) |
|
|
2378 | return; |
|
|
2379 | |
|
|
2380 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2381 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2382 | prepares [preparecnt - 1] = w; |
|
|
2383 | } |
|
|
2384 | |
|
|
2385 | void |
|
|
2386 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2387 | { |
|
|
2388 | clear_pending (EV_A_ (W)w); |
|
|
2389 | if (expect_false (!ev_is_active (w))) |
|
|
2390 | return; |
|
|
2391 | |
|
|
2392 | { |
|
|
2393 | int active = ((W)w)->active; |
|
|
2394 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2395 | ((W)prepares [active - 1])->active = active; |
|
|
2396 | } |
|
|
2397 | |
|
|
2398 | ev_stop (EV_A_ (W)w); |
|
|
2399 | } |
|
|
2400 | |
|
|
2401 | void |
|
|
2402 | ev_check_start (EV_P_ ev_check *w) |
|
|
2403 | { |
|
|
2404 | if (expect_false (ev_is_active (w))) |
|
|
2405 | return; |
|
|
2406 | |
|
|
2407 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2408 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2409 | checks [checkcnt - 1] = w; |
|
|
2410 | } |
|
|
2411 | |
|
|
2412 | void |
|
|
2413 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2414 | { |
|
|
2415 | clear_pending (EV_A_ (W)w); |
|
|
2416 | if (expect_false (!ev_is_active (w))) |
|
|
2417 | return; |
|
|
2418 | |
|
|
2419 | { |
|
|
2420 | int active = ((W)w)->active; |
|
|
2421 | checks [active - 1] = checks [--checkcnt]; |
|
|
2422 | ((W)checks [active - 1])->active = active; |
|
|
2423 | } |
|
|
2424 | |
|
|
2425 | ev_stop (EV_A_ (W)w); |
|
|
2426 | } |
|
|
2427 | |
|
|
2428 | #if EV_EMBED_ENABLE |
|
|
2429 | void noinline |
|
|
2430 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2431 | { |
|
|
2432 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2433 | } |
|
|
2434 | |
|
|
2435 | static void |
|
|
2436 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2437 | { |
|
|
2438 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2439 | |
|
|
2440 | if (ev_cb (w)) |
|
|
2441 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2442 | else |
|
|
2443 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2444 | } |
|
|
2445 | |
|
|
2446 | static void |
|
|
2447 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2448 | { |
|
|
2449 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2450 | |
|
|
2451 | { |
|
|
2452 | struct ev_loop *loop = w->other; |
|
|
2453 | |
|
|
2454 | while (fdchangecnt) |
|
|
2455 | { |
|
|
2456 | fd_reify (EV_A); |
|
|
2457 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2458 | } |
|
|
2459 | } |
|
|
2460 | } |
|
|
2461 | |
|
|
2462 | #if 0 |
|
|
2463 | static void |
|
|
2464 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2465 | { |
|
|
2466 | ev_idle_stop (EV_A_ idle); |
|
|
2467 | } |
|
|
2468 | #endif |
|
|
2469 | |
|
|
2470 | void |
|
|
2471 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2472 | { |
|
|
2473 | if (expect_false (ev_is_active (w))) |
|
|
2474 | return; |
|
|
2475 | |
|
|
2476 | { |
|
|
2477 | struct ev_loop *loop = w->other; |
|
|
2478 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2479 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2480 | } |
|
|
2481 | |
|
|
2482 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2483 | ev_io_start (EV_A_ &w->io); |
|
|
2484 | |
|
|
2485 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2486 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2487 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2488 | |
|
|
2489 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2490 | |
|
|
2491 | ev_start (EV_A_ (W)w, 1); |
|
|
2492 | } |
|
|
2493 | |
|
|
2494 | void |
|
|
2495 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2496 | { |
|
|
2497 | clear_pending (EV_A_ (W)w); |
|
|
2498 | if (expect_false (!ev_is_active (w))) |
|
|
2499 | return; |
|
|
2500 | |
|
|
2501 | ev_io_stop (EV_A_ &w->io); |
|
|
2502 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2503 | |
|
|
2504 | ev_stop (EV_A_ (W)w); |
|
|
2505 | } |
|
|
2506 | #endif |
|
|
2507 | |
|
|
2508 | #if EV_FORK_ENABLE |
|
|
2509 | void |
|
|
2510 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2511 | { |
|
|
2512 | if (expect_false (ev_is_active (w))) |
|
|
2513 | return; |
|
|
2514 | |
|
|
2515 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2516 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2517 | forks [forkcnt - 1] = w; |
|
|
2518 | } |
|
|
2519 | |
|
|
2520 | void |
|
|
2521 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2522 | { |
|
|
2523 | clear_pending (EV_A_ (W)w); |
|
|
2524 | if (expect_false (!ev_is_active (w))) |
|
|
2525 | return; |
|
|
2526 | |
|
|
2527 | { |
|
|
2528 | int active = ((W)w)->active; |
|
|
2529 | forks [active - 1] = forks [--forkcnt]; |
|
|
2530 | ((W)forks [active - 1])->active = active; |
|
|
2531 | } |
|
|
2532 | |
|
|
2533 | ev_stop (EV_A_ (W)w); |
|
|
2534 | } |
|
|
2535 | #endif |
|
|
2536 | |
|
|
2537 | #if EV_ASYNC_ENABLE |
|
|
2538 | void |
|
|
2539 | ev_async_start (EV_P_ ev_async *w) |
|
|
2540 | { |
|
|
2541 | if (expect_false (ev_is_active (w))) |
|
|
2542 | return; |
|
|
2543 | |
|
|
2544 | evpipe_init (EV_A); |
|
|
2545 | |
|
|
2546 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2547 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2548 | asyncs [asynccnt - 1] = w; |
|
|
2549 | } |
|
|
2550 | |
|
|
2551 | void |
|
|
2552 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2553 | { |
|
|
2554 | clear_pending (EV_A_ (W)w); |
|
|
2555 | if (expect_false (!ev_is_active (w))) |
|
|
2556 | return; |
|
|
2557 | |
|
|
2558 | { |
|
|
2559 | int active = ((W)w)->active; |
|
|
2560 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2561 | ((W)asyncs [active - 1])->active = active; |
|
|
2562 | } |
|
|
2563 | |
|
|
2564 | ev_stop (EV_A_ (W)w); |
|
|
2565 | } |
|
|
2566 | |
|
|
2567 | void |
|
|
2568 | ev_async_send (EV_P_ ev_async *w) |
|
|
2569 | { |
|
|
2570 | w->sent = 1; |
|
|
2571 | evpipe_write (EV_A_ &gotasync); |
|
|
2572 | } |
|
|
2573 | #endif |
|
|
2574 | |
1579 | /*****************************************************************************/ |
2575 | /*****************************************************************************/ |
1580 | |
2576 | |
1581 | struct ev_once |
2577 | struct ev_once |
1582 | { |
2578 | { |
1583 | struct ev_io io; |
2579 | ev_io io; |
1584 | struct ev_timer to; |
2580 | ev_timer to; |
1585 | void (*cb)(int revents, void *arg); |
2581 | void (*cb)(int revents, void *arg); |
1586 | void *arg; |
2582 | void *arg; |
1587 | }; |
2583 | }; |
1588 | |
2584 | |
1589 | static void |
2585 | static void |
… | |
… | |
1598 | |
2594 | |
1599 | cb (revents, arg); |
2595 | cb (revents, arg); |
1600 | } |
2596 | } |
1601 | |
2597 | |
1602 | static void |
2598 | static void |
1603 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2599 | once_cb_io (EV_P_ ev_io *w, int revents) |
1604 | { |
2600 | { |
1605 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2601 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1606 | } |
2602 | } |
1607 | |
2603 | |
1608 | static void |
2604 | static void |
1609 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2605 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1610 | { |
2606 | { |
1611 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2607 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1612 | } |
2608 | } |
1613 | |
2609 | |
1614 | void |
2610 | void |
1615 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2611 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1616 | { |
2612 | { |
1617 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2613 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1618 | |
2614 | |
1619 | if (!once) |
2615 | if (expect_false (!once)) |
|
|
2616 | { |
1620 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2617 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1621 | else |
2618 | return; |
1622 | { |
2619 | } |
|
|
2620 | |
1623 | once->cb = cb; |
2621 | once->cb = cb; |
1624 | once->arg = arg; |
2622 | once->arg = arg; |
1625 | |
2623 | |
1626 | ev_init (&once->io, once_cb_io); |
2624 | ev_init (&once->io, once_cb_io); |
1627 | if (fd >= 0) |
2625 | if (fd >= 0) |
1628 | { |
2626 | { |
1629 | ev_io_set (&once->io, fd, events); |
2627 | ev_io_set (&once->io, fd, events); |
1630 | ev_io_start (EV_A_ &once->io); |
2628 | ev_io_start (EV_A_ &once->io); |
1631 | } |
2629 | } |
1632 | |
2630 | |
1633 | ev_init (&once->to, once_cb_to); |
2631 | ev_init (&once->to, once_cb_to); |
1634 | if (timeout >= 0.) |
2632 | if (timeout >= 0.) |
1635 | { |
2633 | { |
1636 | ev_timer_set (&once->to, timeout, 0.); |
2634 | ev_timer_set (&once->to, timeout, 0.); |
1637 | ev_timer_start (EV_A_ &once->to); |
2635 | ev_timer_start (EV_A_ &once->to); |
1638 | } |
|
|
1639 | } |
2636 | } |
1640 | } |
2637 | } |
|
|
2638 | |
|
|
2639 | #if EV_MULTIPLICITY |
|
|
2640 | #include "ev_wrap.h" |
|
|
2641 | #endif |
1641 | |
2642 | |
1642 | #ifdef __cplusplus |
2643 | #ifdef __cplusplus |
1643 | } |
2644 | } |
1644 | #endif |
2645 | #endif |
1645 | |
2646 | |