1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | /* this big block deduces configuration from config.h */ |
33 | extern "C" { |
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34 | #endif |
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35 | |
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36 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
37 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
38 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
39 | # else |
44 | # else |
40 | # include "config.h" |
45 | # include "config.h" |
41 | # endif |
46 | # endif |
42 | |
47 | |
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48 | # if HAVE_CLOCK_SYSCALL |
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49 | # ifndef EV_USE_CLOCK_SYSCALL |
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50 | # define EV_USE_CLOCK_SYSCALL 1 |
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51 | # ifndef EV_USE_REALTIME |
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52 | # define EV_USE_REALTIME 0 |
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53 | # endif |
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54 | # ifndef EV_USE_MONOTONIC |
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55 | # define EV_USE_MONOTONIC 1 |
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56 | # endif |
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57 | # endif |
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58 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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59 | # define EV_USE_CLOCK_SYSCALL 0 |
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60 | # endif |
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61 | |
43 | # if HAVE_CLOCK_GETTIME |
62 | # if HAVE_CLOCK_GETTIME |
44 | # ifndef EV_USE_MONOTONIC |
63 | # ifndef EV_USE_MONOTONIC |
45 | # define EV_USE_MONOTONIC 1 |
64 | # define EV_USE_MONOTONIC 1 |
46 | # endif |
65 | # endif |
47 | # ifndef EV_USE_REALTIME |
66 | # ifndef EV_USE_REALTIME |
48 | # define EV_USE_REALTIME 1 |
67 | # define EV_USE_REALTIME 0 |
49 | # endif |
68 | # endif |
50 | # else |
69 | # else |
51 | # ifndef EV_USE_MONOTONIC |
70 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
71 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
72 | # endif |
54 | # ifndef EV_USE_REALTIME |
73 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
74 | # define EV_USE_REALTIME 0 |
56 | # endif |
75 | # endif |
57 | # endif |
76 | # endif |
58 | |
77 | |
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78 | # if HAVE_NANOSLEEP |
59 | # ifndef EV_USE_NANOSLEEP |
79 | # ifndef EV_USE_NANOSLEEP |
60 | # if HAVE_NANOSLEEP |
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61 | # define EV_USE_NANOSLEEP 1 |
80 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
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81 | # endif |
62 | # else |
82 | # else |
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83 | # undef EV_USE_NANOSLEEP |
63 | # define EV_USE_NANOSLEEP 0 |
84 | # define EV_USE_NANOSLEEP 0 |
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85 | # endif |
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86 | |
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87 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
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88 | # ifndef EV_USE_SELECT |
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89 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
64 | # endif |
90 | # endif |
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91 | # else |
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92 | # undef EV_USE_SELECT |
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93 | # define EV_USE_SELECT 0 |
65 | # endif |
94 | # endif |
66 | |
95 | |
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96 | # if HAVE_POLL && HAVE_POLL_H |
67 | # ifndef EV_USE_SELECT |
97 | # ifndef EV_USE_POLL |
68 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
98 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
69 | # define EV_USE_SELECT 1 |
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70 | # else |
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71 | # define EV_USE_SELECT 0 |
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72 | # endif |
99 | # endif |
73 | # endif |
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74 | |
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75 | # ifndef EV_USE_POLL |
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76 | # if HAVE_POLL && HAVE_POLL_H |
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77 | # define EV_USE_POLL 1 |
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78 | # else |
100 | # else |
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101 | # undef EV_USE_POLL |
79 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
80 | # endif |
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81 | # endif |
103 | # endif |
82 | |
104 | |
83 | # ifndef EV_USE_EPOLL |
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84 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
85 | # define EV_USE_EPOLL 1 |
106 | # ifndef EV_USE_EPOLL |
86 | # else |
107 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
87 | # define EV_USE_EPOLL 0 |
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88 | # endif |
108 | # endif |
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109 | # else |
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110 | # undef EV_USE_EPOLL |
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111 | # define EV_USE_EPOLL 0 |
89 | # endif |
112 | # endif |
90 | |
113 | |
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114 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
91 | # ifndef EV_USE_KQUEUE |
115 | # ifndef EV_USE_KQUEUE |
92 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
93 | # define EV_USE_KQUEUE 1 |
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94 | # else |
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95 | # define EV_USE_KQUEUE 0 |
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96 | # endif |
117 | # endif |
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118 | # else |
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119 | # undef EV_USE_KQUEUE |
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120 | # define EV_USE_KQUEUE 0 |
97 | # endif |
121 | # endif |
98 | |
122 | |
99 | # ifndef EV_USE_PORT |
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100 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
101 | # define EV_USE_PORT 1 |
124 | # ifndef EV_USE_PORT |
102 | # else |
125 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
103 | # define EV_USE_PORT 0 |
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104 | # endif |
126 | # endif |
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127 | # else |
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128 | # undef EV_USE_PORT |
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129 | # define EV_USE_PORT 0 |
105 | # endif |
130 | # endif |
106 | |
131 | |
107 | # ifndef EV_USE_INOTIFY |
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108 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
109 | # define EV_USE_INOTIFY 1 |
133 | # ifndef EV_USE_INOTIFY |
110 | # else |
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111 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY EV_FEATURE_OS |
112 | # endif |
135 | # endif |
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136 | # else |
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137 | # undef EV_USE_INOTIFY |
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138 | # define EV_USE_INOTIFY 0 |
113 | # endif |
139 | # endif |
114 | |
140 | |
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141 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
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142 | # ifndef EV_USE_SIGNALFD |
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143 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
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144 | # endif |
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145 | # else |
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146 | # undef EV_USE_SIGNALFD |
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147 | # define EV_USE_SIGNALFD 0 |
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148 | # endif |
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149 | |
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150 | # if HAVE_EVENTFD |
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151 | # ifndef EV_USE_EVENTFD |
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152 | # define EV_USE_EVENTFD EV_FEATURE_OS |
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153 | # endif |
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154 | # else |
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155 | # undef EV_USE_EVENTFD |
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156 | # define EV_USE_EVENTFD 0 |
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157 | # endif |
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158 | |
115 | #endif |
159 | #endif |
116 | |
160 | |
117 | #include <math.h> |
161 | #include <math.h> |
118 | #include <stdlib.h> |
162 | #include <stdlib.h> |
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163 | #include <string.h> |
119 | #include <fcntl.h> |
164 | #include <fcntl.h> |
120 | #include <stddef.h> |
165 | #include <stddef.h> |
121 | |
166 | |
122 | #include <stdio.h> |
167 | #include <stdio.h> |
123 | |
168 | |
124 | #include <assert.h> |
169 | #include <assert.h> |
125 | #include <errno.h> |
170 | #include <errno.h> |
126 | #include <sys/types.h> |
171 | #include <sys/types.h> |
127 | #include <time.h> |
172 | #include <time.h> |
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173 | #include <limits.h> |
128 | |
174 | |
129 | #include <signal.h> |
175 | #include <signal.h> |
130 | |
176 | |
131 | #ifdef EV_H |
177 | #ifdef EV_H |
132 | # include EV_H |
178 | # include EV_H |
133 | #else |
179 | #else |
134 | # include "ev.h" |
180 | # include "ev.h" |
135 | #endif |
181 | #endif |
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182 | |
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183 | EV_CPP(extern "C" {) |
136 | |
184 | |
137 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
138 | # include <sys/time.h> |
186 | # include <sys/time.h> |
139 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
140 | # include <unistd.h> |
188 | # include <unistd.h> |
141 | #else |
189 | #else |
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190 | # include <io.h> |
142 | # define WIN32_LEAN_AND_MEAN |
191 | # define WIN32_LEAN_AND_MEAN |
143 | # include <windows.h> |
192 | # include <windows.h> |
144 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
145 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
146 | # endif |
195 | # endif |
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196 | # undef EV_AVOID_STDIO |
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197 | #endif |
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198 | |
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199 | /* OS X, in its infinite idiocy, actually HARDCODES |
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200 | * a limit of 1024 into their select. Where people have brains, |
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201 | * OS X engineers apparently have a vacuum. Or maybe they were |
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202 | * ordered to have a vacuum, or they do anything for money. |
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203 | * This might help. Or not. |
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204 | */ |
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205 | #define _DARWIN_UNLIMITED_SELECT 1 |
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206 | |
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207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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208 | |
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209 | /* try to deduce the maximum number of signals on this platform */ |
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210 | #if defined (EV_NSIG) |
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211 | /* use what's provided */ |
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212 | #elif defined (NSIG) |
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213 | # define EV_NSIG (NSIG) |
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214 | #elif defined(_NSIG) |
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215 | # define EV_NSIG (_NSIG) |
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216 | #elif defined (SIGMAX) |
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217 | # define EV_NSIG (SIGMAX+1) |
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218 | #elif defined (SIG_MAX) |
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219 | # define EV_NSIG (SIG_MAX+1) |
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220 | #elif defined (_SIG_MAX) |
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221 | # define EV_NSIG (_SIG_MAX+1) |
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222 | #elif defined (MAXSIG) |
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223 | # define EV_NSIG (MAXSIG+1) |
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224 | #elif defined (MAX_SIG) |
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225 | # define EV_NSIG (MAX_SIG+1) |
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226 | #elif defined (SIGARRAYSIZE) |
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227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
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228 | #elif defined (_sys_nsig) |
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229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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230 | #else |
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231 | # error "unable to find value for NSIG, please report" |
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232 | /* to make it compile regardless, just remove the above line, */ |
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233 | /* but consider reporting it, too! :) */ |
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234 | # define EV_NSIG 65 |
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235 | #endif |
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236 | |
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237 | #ifndef EV_USE_CLOCK_SYSCALL |
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238 | # if __linux && __GLIBC__ >= 2 |
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239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
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240 | # else |
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241 | # define EV_USE_CLOCK_SYSCALL 0 |
147 | #endif |
242 | # endif |
148 | |
243 | #endif |
149 | /**/ |
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150 | |
244 | |
151 | #ifndef EV_USE_MONOTONIC |
245 | #ifndef EV_USE_MONOTONIC |
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246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
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248 | # else |
152 | # define EV_USE_MONOTONIC 0 |
249 | # define EV_USE_MONOTONIC 0 |
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250 | # endif |
153 | #endif |
251 | #endif |
154 | |
252 | |
155 | #ifndef EV_USE_REALTIME |
253 | #ifndef EV_USE_REALTIME |
156 | # define EV_USE_REALTIME 0 |
254 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
157 | #endif |
255 | #endif |
158 | |
256 | |
159 | #ifndef EV_USE_NANOSLEEP |
257 | #ifndef EV_USE_NANOSLEEP |
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258 | # if _POSIX_C_SOURCE >= 199309L |
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259 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
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260 | # else |
160 | # define EV_USE_NANOSLEEP 0 |
261 | # define EV_USE_NANOSLEEP 0 |
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262 | # endif |
161 | #endif |
263 | #endif |
162 | |
264 | |
163 | #ifndef EV_USE_SELECT |
265 | #ifndef EV_USE_SELECT |
164 | # define EV_USE_SELECT 1 |
266 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
165 | #endif |
267 | #endif |
166 | |
268 | |
167 | #ifndef EV_USE_POLL |
269 | #ifndef EV_USE_POLL |
168 | # ifdef _WIN32 |
270 | # ifdef _WIN32 |
169 | # define EV_USE_POLL 0 |
271 | # define EV_USE_POLL 0 |
170 | # else |
272 | # else |
171 | # define EV_USE_POLL 1 |
273 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
172 | # endif |
274 | # endif |
173 | #endif |
275 | #endif |
174 | |
276 | |
175 | #ifndef EV_USE_EPOLL |
277 | #ifndef EV_USE_EPOLL |
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278 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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279 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
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280 | # else |
176 | # define EV_USE_EPOLL 0 |
281 | # define EV_USE_EPOLL 0 |
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282 | # endif |
177 | #endif |
283 | #endif |
178 | |
284 | |
179 | #ifndef EV_USE_KQUEUE |
285 | #ifndef EV_USE_KQUEUE |
180 | # define EV_USE_KQUEUE 0 |
286 | # define EV_USE_KQUEUE 0 |
181 | #endif |
287 | #endif |
… | |
… | |
183 | #ifndef EV_USE_PORT |
289 | #ifndef EV_USE_PORT |
184 | # define EV_USE_PORT 0 |
290 | # define EV_USE_PORT 0 |
185 | #endif |
291 | #endif |
186 | |
292 | |
187 | #ifndef EV_USE_INOTIFY |
293 | #ifndef EV_USE_INOTIFY |
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294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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295 | # define EV_USE_INOTIFY EV_FEATURE_OS |
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296 | # else |
188 | # define EV_USE_INOTIFY 0 |
297 | # define EV_USE_INOTIFY 0 |
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298 | # endif |
189 | #endif |
299 | #endif |
190 | |
300 | |
191 | #ifndef EV_PID_HASHSIZE |
301 | #ifndef EV_PID_HASHSIZE |
192 | # if EV_MINIMAL |
302 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
193 | # define EV_PID_HASHSIZE 1 |
303 | #endif |
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304 | |
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305 | #ifndef EV_INOTIFY_HASHSIZE |
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306 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
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307 | #endif |
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308 | |
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309 | #ifndef EV_USE_EVENTFD |
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310 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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311 | # define EV_USE_EVENTFD EV_FEATURE_OS |
194 | # else |
312 | # else |
195 | # define EV_PID_HASHSIZE 16 |
313 | # define EV_USE_EVENTFD 0 |
196 | # endif |
314 | # endif |
197 | #endif |
315 | #endif |
198 | |
316 | |
199 | #ifndef EV_INOTIFY_HASHSIZE |
317 | #ifndef EV_USE_SIGNALFD |
200 | # if EV_MINIMAL |
318 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
201 | # define EV_INOTIFY_HASHSIZE 1 |
319 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
202 | # else |
320 | # else |
203 | # define EV_INOTIFY_HASHSIZE 16 |
321 | # define EV_USE_SIGNALFD 0 |
204 | # endif |
322 | # endif |
205 | #endif |
323 | #endif |
206 | |
324 | |
207 | /**/ |
325 | #if 0 /* debugging */ |
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326 | # define EV_VERIFY 3 |
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327 | # define EV_USE_4HEAP 1 |
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328 | # define EV_HEAP_CACHE_AT 1 |
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329 | #endif |
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330 | |
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331 | #ifndef EV_VERIFY |
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332 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
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333 | #endif |
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334 | |
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335 | #ifndef EV_USE_4HEAP |
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336 | # define EV_USE_4HEAP EV_FEATURE_DATA |
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337 | #endif |
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338 | |
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339 | #ifndef EV_HEAP_CACHE_AT |
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340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
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341 | #endif |
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342 | |
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343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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344 | /* which makes programs even slower. might work on other unices, too. */ |
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345 | #if EV_USE_CLOCK_SYSCALL |
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346 | # include <syscall.h> |
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347 | # ifdef SYS_clock_gettime |
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348 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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349 | # undef EV_USE_MONOTONIC |
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350 | # define EV_USE_MONOTONIC 1 |
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351 | # else |
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352 | # undef EV_USE_CLOCK_SYSCALL |
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353 | # define EV_USE_CLOCK_SYSCALL 0 |
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354 | # endif |
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355 | #endif |
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356 | |
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357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
358 | |
|
|
359 | #ifdef _AIX |
|
|
360 | /* AIX has a completely broken poll.h header */ |
|
|
361 | # undef EV_USE_POLL |
|
|
362 | # define EV_USE_POLL 0 |
|
|
363 | #endif |
208 | |
364 | |
209 | #ifndef CLOCK_MONOTONIC |
365 | #ifndef CLOCK_MONOTONIC |
210 | # undef EV_USE_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
211 | # define EV_USE_MONOTONIC 0 |
367 | # define EV_USE_MONOTONIC 0 |
212 | #endif |
368 | #endif |
… | |
… | |
226 | # include <sys/select.h> |
382 | # include <sys/select.h> |
227 | # endif |
383 | # endif |
228 | #endif |
384 | #endif |
229 | |
385 | |
230 | #if EV_USE_INOTIFY |
386 | #if EV_USE_INOTIFY |
|
|
387 | # include <sys/utsname.h> |
|
|
388 | # include <sys/statfs.h> |
231 | # include <sys/inotify.h> |
389 | # include <sys/inotify.h> |
|
|
390 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
391 | # ifndef IN_DONT_FOLLOW |
|
|
392 | # undef EV_USE_INOTIFY |
|
|
393 | # define EV_USE_INOTIFY 0 |
|
|
394 | # endif |
232 | #endif |
395 | #endif |
233 | |
396 | |
234 | #if EV_SELECT_IS_WINSOCKET |
397 | #if EV_SELECT_IS_WINSOCKET |
235 | # include <winsock.h> |
398 | # include <winsock.h> |
236 | #endif |
399 | #endif |
237 | |
400 | |
|
|
401 | #if EV_USE_EVENTFD |
|
|
402 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
403 | # include <stdint.h> |
|
|
404 | # ifndef EFD_NONBLOCK |
|
|
405 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
406 | # endif |
|
|
407 | # ifndef EFD_CLOEXEC |
|
|
408 | # ifdef O_CLOEXEC |
|
|
409 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
410 | # else |
|
|
411 | # define EFD_CLOEXEC 02000000 |
|
|
412 | # endif |
|
|
413 | # endif |
|
|
414 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
415 | #endif |
|
|
416 | |
|
|
417 | #if EV_USE_SIGNALFD |
|
|
418 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
419 | # include <stdint.h> |
|
|
420 | # ifndef SFD_NONBLOCK |
|
|
421 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
422 | # endif |
|
|
423 | # ifndef SFD_CLOEXEC |
|
|
424 | # ifdef O_CLOEXEC |
|
|
425 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
426 | # else |
|
|
427 | # define SFD_CLOEXEC 02000000 |
|
|
428 | # endif |
|
|
429 | # endif |
|
|
430 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
431 | |
|
|
432 | struct signalfd_siginfo |
|
|
433 | { |
|
|
434 | uint32_t ssi_signo; |
|
|
435 | char pad[128 - sizeof (uint32_t)]; |
|
|
436 | }; |
|
|
437 | #endif |
|
|
438 | |
238 | /**/ |
439 | /**/ |
|
|
440 | |
|
|
441 | #if EV_VERIFY >= 3 |
|
|
442 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
443 | #else |
|
|
444 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
445 | #endif |
239 | |
446 | |
240 | /* |
447 | /* |
241 | * This is used to avoid floating point rounding problems. |
448 | * This is used to avoid floating point rounding problems. |
242 | * It is added to ev_rt_now when scheduling periodics |
449 | * It is added to ev_rt_now when scheduling periodics |
243 | * to ensure progress, time-wise, even when rounding |
450 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
247 | */ |
454 | */ |
248 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
455 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
249 | |
456 | |
250 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
457 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
251 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
458 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
252 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
459 | |
|
|
460 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
461 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
253 | |
462 | |
254 | #if __GNUC__ >= 4 |
463 | #if __GNUC__ >= 4 |
255 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
256 | # define noinline __attribute__ ((noinline)) |
465 | # define noinline __attribute__ ((noinline)) |
257 | #else |
466 | #else |
258 | # define expect(expr,value) (expr) |
467 | # define expect(expr,value) (expr) |
259 | # define noinline |
468 | # define noinline |
260 | # if __STDC_VERSION__ < 199901L |
469 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
261 | # define inline |
470 | # define inline |
262 | # endif |
471 | # endif |
263 | #endif |
472 | #endif |
264 | |
473 | |
265 | #define expect_false(expr) expect ((expr) != 0, 0) |
474 | #define expect_false(expr) expect ((expr) != 0, 0) |
266 | #define expect_true(expr) expect ((expr) != 0, 1) |
475 | #define expect_true(expr) expect ((expr) != 0, 1) |
267 | #define inline_size static inline |
476 | #define inline_size static inline |
268 | |
477 | |
269 | #if EV_MINIMAL |
478 | #if EV_FEATURE_CODE |
|
|
479 | # define inline_speed static inline |
|
|
480 | #else |
270 | # define inline_speed static noinline |
481 | # define inline_speed static noinline |
|
|
482 | #endif |
|
|
483 | |
|
|
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
485 | |
|
|
486 | #if EV_MINPRI == EV_MAXPRI |
|
|
487 | # define ABSPRI(w) (((W)w), 0) |
271 | #else |
488 | #else |
272 | # define inline_speed static inline |
|
|
273 | #endif |
|
|
274 | |
|
|
275 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
276 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
489 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
490 | #endif |
277 | |
491 | |
278 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
492 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
279 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
493 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
280 | |
494 | |
281 | typedef ev_watcher *W; |
495 | typedef ev_watcher *W; |
282 | typedef ev_watcher_list *WL; |
496 | typedef ev_watcher_list *WL; |
283 | typedef ev_watcher_time *WT; |
497 | typedef ev_watcher_time *WT; |
284 | |
498 | |
|
|
499 | #define ev_active(w) ((W)(w))->active |
|
|
500 | #define ev_at(w) ((WT)(w))->at |
|
|
501 | |
|
|
502 | #if EV_USE_REALTIME |
|
|
503 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
504 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
505 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
506 | #endif |
|
|
507 | |
|
|
508 | #if EV_USE_MONOTONIC |
285 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
509 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
510 | #endif |
|
|
511 | |
|
|
512 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
513 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
514 | #endif |
|
|
515 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
516 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
517 | #endif |
|
|
518 | #ifndef EV_WIN32_CLOSE_FD |
|
|
519 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
520 | #endif |
286 | |
521 | |
287 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
288 | # include "ev_win32.c" |
523 | # include "ev_win32.c" |
289 | #endif |
524 | #endif |
290 | |
525 | |
291 | /*****************************************************************************/ |
526 | /*****************************************************************************/ |
292 | |
527 | |
|
|
528 | static unsigned int noinline |
|
|
529 | ev_linux_version (void) |
|
|
530 | { |
|
|
531 | #ifdef __linux |
|
|
532 | struct utsname buf; |
|
|
533 | unsigned int v; |
|
|
534 | int i; |
|
|
535 | char *p = buf.release; |
|
|
536 | |
|
|
537 | if (uname (&buf)) |
|
|
538 | return 0; |
|
|
539 | |
|
|
540 | for (i = 3+1; --i; ) |
|
|
541 | { |
|
|
542 | unsigned int c = 0; |
|
|
543 | |
|
|
544 | for (;;) |
|
|
545 | { |
|
|
546 | if (*p >= '0' && *p <= '9') |
|
|
547 | c = c * 10 + *p++ - '0'; |
|
|
548 | else |
|
|
549 | { |
|
|
550 | p += *p == '.'; |
|
|
551 | break; |
|
|
552 | } |
|
|
553 | } |
|
|
554 | |
|
|
555 | v = (v << 8) | c; |
|
|
556 | } |
|
|
557 | |
|
|
558 | return v; |
|
|
559 | #else |
|
|
560 | return 0; |
|
|
561 | #endif |
|
|
562 | } |
|
|
563 | |
|
|
564 | /*****************************************************************************/ |
|
|
565 | |
|
|
566 | #if EV_AVOID_STDIO |
|
|
567 | static void noinline |
|
|
568 | ev_printerr (const char *msg) |
|
|
569 | { |
|
|
570 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
571 | } |
|
|
572 | #endif |
|
|
573 | |
293 | static void (*syserr_cb)(const char *msg); |
574 | static void (*syserr_cb)(const char *msg); |
294 | |
575 | |
295 | void |
576 | void |
296 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
577 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
297 | { |
578 | { |
298 | syserr_cb = cb; |
579 | syserr_cb = cb; |
299 | } |
580 | } |
300 | |
581 | |
301 | static void noinline |
582 | static void noinline |
302 | syserr (const char *msg) |
583 | ev_syserr (const char *msg) |
303 | { |
584 | { |
304 | if (!msg) |
585 | if (!msg) |
305 | msg = "(libev) system error"; |
586 | msg = "(libev) system error"; |
306 | |
587 | |
307 | if (syserr_cb) |
588 | if (syserr_cb) |
308 | syserr_cb (msg); |
589 | syserr_cb (msg); |
309 | else |
590 | else |
310 | { |
591 | { |
|
|
592 | #if EV_AVOID_STDIO |
|
|
593 | const char *err = strerror (errno); |
|
|
594 | |
|
|
595 | ev_printerr (msg); |
|
|
596 | ev_printerr (": "); |
|
|
597 | ev_printerr (err); |
|
|
598 | ev_printerr ("\n"); |
|
|
599 | #else |
311 | perror (msg); |
600 | perror (msg); |
|
|
601 | #endif |
312 | abort (); |
602 | abort (); |
313 | } |
603 | } |
314 | } |
604 | } |
315 | |
605 | |
|
|
606 | static void * |
|
|
607 | ev_realloc_emul (void *ptr, long size) |
|
|
608 | { |
|
|
609 | #if __GLIBC__ |
|
|
610 | return realloc (ptr, size); |
|
|
611 | #else |
|
|
612 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
613 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
614 | * the single unix specification, so work around them here. |
|
|
615 | */ |
|
|
616 | |
|
|
617 | if (size) |
|
|
618 | return realloc (ptr, size); |
|
|
619 | |
|
|
620 | free (ptr); |
|
|
621 | return 0; |
|
|
622 | #endif |
|
|
623 | } |
|
|
624 | |
316 | static void *(*alloc)(void *ptr, long size); |
625 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
317 | |
626 | |
318 | void |
627 | void |
319 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
628 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
320 | { |
629 | { |
321 | alloc = cb; |
630 | alloc = cb; |
322 | } |
631 | } |
323 | |
632 | |
324 | inline_speed void * |
633 | inline_speed void * |
325 | ev_realloc (void *ptr, long size) |
634 | ev_realloc (void *ptr, long size) |
326 | { |
635 | { |
327 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
636 | ptr = alloc (ptr, size); |
328 | |
637 | |
329 | if (!ptr && size) |
638 | if (!ptr && size) |
330 | { |
639 | { |
|
|
640 | #if EV_AVOID_STDIO |
|
|
641 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
642 | #else |
331 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
643 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
644 | #endif |
332 | abort (); |
645 | abort (); |
333 | } |
646 | } |
334 | |
647 | |
335 | return ptr; |
648 | return ptr; |
336 | } |
649 | } |
… | |
… | |
338 | #define ev_malloc(size) ev_realloc (0, (size)) |
651 | #define ev_malloc(size) ev_realloc (0, (size)) |
339 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
652 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
340 | |
653 | |
341 | /*****************************************************************************/ |
654 | /*****************************************************************************/ |
342 | |
655 | |
|
|
656 | /* set in reify when reification needed */ |
|
|
657 | #define EV_ANFD_REIFY 1 |
|
|
658 | |
|
|
659 | /* file descriptor info structure */ |
343 | typedef struct |
660 | typedef struct |
344 | { |
661 | { |
345 | WL head; |
662 | WL head; |
346 | unsigned char events; |
663 | unsigned char events; /* the events watched for */ |
|
|
664 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
665 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
347 | unsigned char reify; |
666 | unsigned char unused; |
|
|
667 | #if EV_USE_EPOLL |
|
|
668 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
669 | #endif |
348 | #if EV_SELECT_IS_WINSOCKET |
670 | #if EV_SELECT_IS_WINSOCKET |
349 | SOCKET handle; |
671 | SOCKET handle; |
350 | #endif |
672 | #endif |
351 | } ANFD; |
673 | } ANFD; |
352 | |
674 | |
|
|
675 | /* stores the pending event set for a given watcher */ |
353 | typedef struct |
676 | typedef struct |
354 | { |
677 | { |
355 | W w; |
678 | W w; |
356 | int events; |
679 | int events; /* the pending event set for the given watcher */ |
357 | } ANPENDING; |
680 | } ANPENDING; |
358 | |
681 | |
359 | #if EV_USE_INOTIFY |
682 | #if EV_USE_INOTIFY |
|
|
683 | /* hash table entry per inotify-id */ |
360 | typedef struct |
684 | typedef struct |
361 | { |
685 | { |
362 | WL head; |
686 | WL head; |
363 | } ANFS; |
687 | } ANFS; |
|
|
688 | #endif |
|
|
689 | |
|
|
690 | /* Heap Entry */ |
|
|
691 | #if EV_HEAP_CACHE_AT |
|
|
692 | /* a heap element */ |
|
|
693 | typedef struct { |
|
|
694 | ev_tstamp at; |
|
|
695 | WT w; |
|
|
696 | } ANHE; |
|
|
697 | |
|
|
698 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
699 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
700 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
701 | #else |
|
|
702 | /* a heap element */ |
|
|
703 | typedef WT ANHE; |
|
|
704 | |
|
|
705 | #define ANHE_w(he) (he) |
|
|
706 | #define ANHE_at(he) (he)->at |
|
|
707 | #define ANHE_at_cache(he) |
364 | #endif |
708 | #endif |
365 | |
709 | |
366 | #if EV_MULTIPLICITY |
710 | #if EV_MULTIPLICITY |
367 | |
711 | |
368 | struct ev_loop |
712 | struct ev_loop |
… | |
… | |
387 | |
731 | |
388 | static int ev_default_loop_ptr; |
732 | static int ev_default_loop_ptr; |
389 | |
733 | |
390 | #endif |
734 | #endif |
391 | |
735 | |
|
|
736 | #if EV_FEATURE_API |
|
|
737 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
738 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
739 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
740 | #else |
|
|
741 | # define EV_RELEASE_CB (void)0 |
|
|
742 | # define EV_ACQUIRE_CB (void)0 |
|
|
743 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
744 | #endif |
|
|
745 | |
|
|
746 | #define EVBREAK_RECURSE 0x80 |
|
|
747 | |
392 | /*****************************************************************************/ |
748 | /*****************************************************************************/ |
393 | |
749 | |
|
|
750 | #ifndef EV_HAVE_EV_TIME |
394 | ev_tstamp |
751 | ev_tstamp |
395 | ev_time (void) |
752 | ev_time (void) |
396 | { |
753 | { |
397 | #if EV_USE_REALTIME |
754 | #if EV_USE_REALTIME |
|
|
755 | if (expect_true (have_realtime)) |
|
|
756 | { |
398 | struct timespec ts; |
757 | struct timespec ts; |
399 | clock_gettime (CLOCK_REALTIME, &ts); |
758 | clock_gettime (CLOCK_REALTIME, &ts); |
400 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
759 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
401 | #else |
760 | } |
|
|
761 | #endif |
|
|
762 | |
402 | struct timeval tv; |
763 | struct timeval tv; |
403 | gettimeofday (&tv, 0); |
764 | gettimeofday (&tv, 0); |
404 | return tv.tv_sec + tv.tv_usec * 1e-6; |
765 | return tv.tv_sec + tv.tv_usec * 1e-6; |
405 | #endif |
|
|
406 | } |
766 | } |
|
|
767 | #endif |
407 | |
768 | |
408 | ev_tstamp inline_size |
769 | inline_size ev_tstamp |
409 | get_clock (void) |
770 | get_clock (void) |
410 | { |
771 | { |
411 | #if EV_USE_MONOTONIC |
772 | #if EV_USE_MONOTONIC |
412 | if (expect_true (have_monotonic)) |
773 | if (expect_true (have_monotonic)) |
413 | { |
774 | { |
… | |
… | |
434 | if (delay > 0.) |
795 | if (delay > 0.) |
435 | { |
796 | { |
436 | #if EV_USE_NANOSLEEP |
797 | #if EV_USE_NANOSLEEP |
437 | struct timespec ts; |
798 | struct timespec ts; |
438 | |
799 | |
439 | ts.tv_sec = (time_t)delay; |
800 | EV_TS_SET (ts, delay); |
440 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
441 | |
|
|
442 | nanosleep (&ts, 0); |
801 | nanosleep (&ts, 0); |
443 | #elif defined(_WIN32) |
802 | #elif defined(_WIN32) |
444 | Sleep (delay * 1e3); |
803 | Sleep ((unsigned long)(delay * 1e3)); |
445 | #else |
804 | #else |
446 | struct timeval tv; |
805 | struct timeval tv; |
447 | |
806 | |
448 | tv.tv_sec = (time_t)delay; |
807 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
449 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
808 | /* something not guaranteed by newer posix versions, but guaranteed */ |
450 | |
809 | /* by older ones */ |
|
|
810 | EV_TV_SET (tv, delay); |
451 | select (0, 0, 0, 0, &tv); |
811 | select (0, 0, 0, 0, &tv); |
452 | #endif |
812 | #endif |
453 | } |
813 | } |
454 | } |
814 | } |
455 | |
815 | |
456 | /*****************************************************************************/ |
816 | /*****************************************************************************/ |
457 | |
817 | |
458 | int inline_size |
818 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
819 | |
|
|
820 | /* find a suitable new size for the given array, */ |
|
|
821 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
822 | inline_size int |
459 | array_nextsize (int elem, int cur, int cnt) |
823 | array_nextsize (int elem, int cur, int cnt) |
460 | { |
824 | { |
461 | int ncur = cur + 1; |
825 | int ncur = cur + 1; |
462 | |
826 | |
463 | do |
827 | do |
464 | ncur <<= 1; |
828 | ncur <<= 1; |
465 | while (cnt > ncur); |
829 | while (cnt > ncur); |
466 | |
830 | |
467 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
831 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
468 | if (elem * ncur > 4096) |
832 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
469 | { |
833 | { |
470 | ncur *= elem; |
834 | ncur *= elem; |
471 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
835 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
472 | ncur = ncur - sizeof (void *) * 4; |
836 | ncur = ncur - sizeof (void *) * 4; |
473 | ncur /= elem; |
837 | ncur /= elem; |
474 | } |
838 | } |
475 | |
839 | |
476 | return ncur; |
840 | return ncur; |
… | |
… | |
480 | array_realloc (int elem, void *base, int *cur, int cnt) |
844 | array_realloc (int elem, void *base, int *cur, int cnt) |
481 | { |
845 | { |
482 | *cur = array_nextsize (elem, *cur, cnt); |
846 | *cur = array_nextsize (elem, *cur, cnt); |
483 | return ev_realloc (base, elem * *cur); |
847 | return ev_realloc (base, elem * *cur); |
484 | } |
848 | } |
|
|
849 | |
|
|
850 | #define array_init_zero(base,count) \ |
|
|
851 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
485 | |
852 | |
486 | #define array_needsize(type,base,cur,cnt,init) \ |
853 | #define array_needsize(type,base,cur,cnt,init) \ |
487 | if (expect_false ((cnt) > (cur))) \ |
854 | if (expect_false ((cnt) > (cur))) \ |
488 | { \ |
855 | { \ |
489 | int ocur_ = (cur); \ |
856 | int ocur_ = (cur); \ |
… | |
… | |
501 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
868 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
502 | } |
869 | } |
503 | #endif |
870 | #endif |
504 | |
871 | |
505 | #define array_free(stem, idx) \ |
872 | #define array_free(stem, idx) \ |
506 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
873 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
507 | |
874 | |
508 | /*****************************************************************************/ |
875 | /*****************************************************************************/ |
|
|
876 | |
|
|
877 | /* dummy callback for pending events */ |
|
|
878 | static void noinline |
|
|
879 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
880 | { |
|
|
881 | } |
509 | |
882 | |
510 | void noinline |
883 | void noinline |
511 | ev_feed_event (EV_P_ void *w, int revents) |
884 | ev_feed_event (EV_P_ void *w, int revents) |
512 | { |
885 | { |
513 | W w_ = (W)w; |
886 | W w_ = (W)w; |
… | |
… | |
522 | pendings [pri][w_->pending - 1].w = w_; |
895 | pendings [pri][w_->pending - 1].w = w_; |
523 | pendings [pri][w_->pending - 1].events = revents; |
896 | pendings [pri][w_->pending - 1].events = revents; |
524 | } |
897 | } |
525 | } |
898 | } |
526 | |
899 | |
527 | void inline_speed |
900 | inline_speed void |
|
|
901 | feed_reverse (EV_P_ W w) |
|
|
902 | { |
|
|
903 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
904 | rfeeds [rfeedcnt++] = w; |
|
|
905 | } |
|
|
906 | |
|
|
907 | inline_size void |
|
|
908 | feed_reverse_done (EV_P_ int revents) |
|
|
909 | { |
|
|
910 | do |
|
|
911 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
912 | while (rfeedcnt); |
|
|
913 | } |
|
|
914 | |
|
|
915 | inline_speed void |
528 | queue_events (EV_P_ W *events, int eventcnt, int type) |
916 | queue_events (EV_P_ W *events, int eventcnt, int type) |
529 | { |
917 | { |
530 | int i; |
918 | int i; |
531 | |
919 | |
532 | for (i = 0; i < eventcnt; ++i) |
920 | for (i = 0; i < eventcnt; ++i) |
533 | ev_feed_event (EV_A_ events [i], type); |
921 | ev_feed_event (EV_A_ events [i], type); |
534 | } |
922 | } |
535 | |
923 | |
536 | /*****************************************************************************/ |
924 | /*****************************************************************************/ |
537 | |
925 | |
538 | void inline_size |
926 | inline_speed void |
539 | anfds_init (ANFD *base, int count) |
|
|
540 | { |
|
|
541 | while (count--) |
|
|
542 | { |
|
|
543 | base->head = 0; |
|
|
544 | base->events = EV_NONE; |
|
|
545 | base->reify = 0; |
|
|
546 | |
|
|
547 | ++base; |
|
|
548 | } |
|
|
549 | } |
|
|
550 | |
|
|
551 | void inline_speed |
|
|
552 | fd_event (EV_P_ int fd, int revents) |
927 | fd_event_nocheck (EV_P_ int fd, int revents) |
553 | { |
928 | { |
554 | ANFD *anfd = anfds + fd; |
929 | ANFD *anfd = anfds + fd; |
555 | ev_io *w; |
930 | ev_io *w; |
556 | |
931 | |
557 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
932 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
561 | if (ev) |
936 | if (ev) |
562 | ev_feed_event (EV_A_ (W)w, ev); |
937 | ev_feed_event (EV_A_ (W)w, ev); |
563 | } |
938 | } |
564 | } |
939 | } |
565 | |
940 | |
|
|
941 | /* do not submit kernel events for fds that have reify set */ |
|
|
942 | /* because that means they changed while we were polling for new events */ |
|
|
943 | inline_speed void |
|
|
944 | fd_event (EV_P_ int fd, int revents) |
|
|
945 | { |
|
|
946 | ANFD *anfd = anfds + fd; |
|
|
947 | |
|
|
948 | if (expect_true (!anfd->reify)) |
|
|
949 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
950 | } |
|
|
951 | |
566 | void |
952 | void |
567 | ev_feed_fd_event (EV_P_ int fd, int revents) |
953 | ev_feed_fd_event (EV_P_ int fd, int revents) |
568 | { |
954 | { |
569 | if (fd >= 0 && fd < anfdmax) |
955 | if (fd >= 0 && fd < anfdmax) |
570 | fd_event (EV_A_ fd, revents); |
956 | fd_event_nocheck (EV_A_ fd, revents); |
571 | } |
957 | } |
572 | |
958 | |
573 | void inline_size |
959 | /* make sure the external fd watch events are in-sync */ |
|
|
960 | /* with the kernel/libev internal state */ |
|
|
961 | inline_size void |
574 | fd_reify (EV_P) |
962 | fd_reify (EV_P) |
575 | { |
963 | { |
576 | int i; |
964 | int i; |
577 | |
965 | |
578 | for (i = 0; i < fdchangecnt; ++i) |
966 | for (i = 0; i < fdchangecnt; ++i) |
579 | { |
967 | { |
580 | int fd = fdchanges [i]; |
968 | int fd = fdchanges [i]; |
581 | ANFD *anfd = anfds + fd; |
969 | ANFD *anfd = anfds + fd; |
582 | ev_io *w; |
970 | ev_io *w; |
583 | |
971 | |
584 | unsigned char events = 0; |
972 | unsigned char o_events = anfd->events; |
|
|
973 | unsigned char o_reify = anfd->reify; |
585 | |
974 | |
586 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
975 | anfd->reify = 0; |
587 | events |= (unsigned char)w->events; |
|
|
588 | |
976 | |
589 | #if EV_SELECT_IS_WINSOCKET |
977 | #if EV_SELECT_IS_WINSOCKET |
590 | if (events) |
978 | if (o_reify & EV__IOFDSET) |
591 | { |
979 | { |
592 | unsigned long argp; |
980 | unsigned long arg; |
593 | anfd->handle = _get_osfhandle (fd); |
981 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
594 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
982 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
595 | } |
983 | } |
596 | #endif |
984 | #endif |
597 | |
985 | |
|
|
986 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
598 | { |
987 | { |
599 | unsigned char o_events = anfd->events; |
|
|
600 | unsigned char o_reify = anfd->reify; |
|
|
601 | |
|
|
602 | anfd->reify = 0; |
|
|
603 | anfd->events = events; |
988 | anfd->events = 0; |
604 | |
989 | |
605 | if (o_events != events || o_reify & EV_IOFDSET) |
990 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
991 | anfd->events |= (unsigned char)w->events; |
|
|
992 | |
|
|
993 | if (o_events != anfd->events) |
|
|
994 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
995 | } |
|
|
996 | |
|
|
997 | if (o_reify & EV__IOFDSET) |
606 | backend_modify (EV_A_ fd, o_events, events); |
998 | backend_modify (EV_A_ fd, o_events, anfd->events); |
607 | } |
|
|
608 | } |
999 | } |
609 | |
1000 | |
610 | fdchangecnt = 0; |
1001 | fdchangecnt = 0; |
611 | } |
1002 | } |
612 | |
1003 | |
613 | void inline_size |
1004 | /* something about the given fd changed */ |
|
|
1005 | inline_size void |
614 | fd_change (EV_P_ int fd, int flags) |
1006 | fd_change (EV_P_ int fd, int flags) |
615 | { |
1007 | { |
616 | unsigned char reify = anfds [fd].reify; |
1008 | unsigned char reify = anfds [fd].reify; |
617 | anfds [fd].reify |= flags; |
1009 | anfds [fd].reify |= flags; |
618 | |
1010 | |
… | |
… | |
622 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1014 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
623 | fdchanges [fdchangecnt - 1] = fd; |
1015 | fdchanges [fdchangecnt - 1] = fd; |
624 | } |
1016 | } |
625 | } |
1017 | } |
626 | |
1018 | |
627 | void inline_speed |
1019 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1020 | inline_speed void |
628 | fd_kill (EV_P_ int fd) |
1021 | fd_kill (EV_P_ int fd) |
629 | { |
1022 | { |
630 | ev_io *w; |
1023 | ev_io *w; |
631 | |
1024 | |
632 | while ((w = (ev_io *)anfds [fd].head)) |
1025 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
634 | ev_io_stop (EV_A_ w); |
1027 | ev_io_stop (EV_A_ w); |
635 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1028 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
636 | } |
1029 | } |
637 | } |
1030 | } |
638 | |
1031 | |
639 | int inline_size |
1032 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1033 | inline_size int |
640 | fd_valid (int fd) |
1034 | fd_valid (int fd) |
641 | { |
1035 | { |
642 | #ifdef _WIN32 |
1036 | #ifdef _WIN32 |
643 | return _get_osfhandle (fd) != -1; |
1037 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
644 | #else |
1038 | #else |
645 | return fcntl (fd, F_GETFD) != -1; |
1039 | return fcntl (fd, F_GETFD) != -1; |
646 | #endif |
1040 | #endif |
647 | } |
1041 | } |
648 | |
1042 | |
… | |
… | |
652 | { |
1046 | { |
653 | int fd; |
1047 | int fd; |
654 | |
1048 | |
655 | for (fd = 0; fd < anfdmax; ++fd) |
1049 | for (fd = 0; fd < anfdmax; ++fd) |
656 | if (anfds [fd].events) |
1050 | if (anfds [fd].events) |
657 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1051 | if (!fd_valid (fd) && errno == EBADF) |
658 | fd_kill (EV_A_ fd); |
1052 | fd_kill (EV_A_ fd); |
659 | } |
1053 | } |
660 | |
1054 | |
661 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1055 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
662 | static void noinline |
1056 | static void noinline |
… | |
… | |
666 | |
1060 | |
667 | for (fd = anfdmax; fd--; ) |
1061 | for (fd = anfdmax; fd--; ) |
668 | if (anfds [fd].events) |
1062 | if (anfds [fd].events) |
669 | { |
1063 | { |
670 | fd_kill (EV_A_ fd); |
1064 | fd_kill (EV_A_ fd); |
671 | return; |
1065 | break; |
672 | } |
1066 | } |
673 | } |
1067 | } |
674 | |
1068 | |
675 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1069 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
676 | static void noinline |
1070 | static void noinline |
… | |
… | |
680 | |
1074 | |
681 | for (fd = 0; fd < anfdmax; ++fd) |
1075 | for (fd = 0; fd < anfdmax; ++fd) |
682 | if (anfds [fd].events) |
1076 | if (anfds [fd].events) |
683 | { |
1077 | { |
684 | anfds [fd].events = 0; |
1078 | anfds [fd].events = 0; |
|
|
1079 | anfds [fd].emask = 0; |
685 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1080 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
686 | } |
1081 | } |
687 | } |
1082 | } |
688 | |
1083 | |
689 | /*****************************************************************************/ |
1084 | /* used to prepare libev internal fd's */ |
690 | |
1085 | /* this is not fork-safe */ |
691 | void inline_speed |
1086 | inline_speed void |
692 | upheap (WT *heap, int k) |
|
|
693 | { |
|
|
694 | WT w = heap [k]; |
|
|
695 | |
|
|
696 | while (k) |
|
|
697 | { |
|
|
698 | int p = (k - 1) >> 1; |
|
|
699 | |
|
|
700 | if (heap [p]->at <= w->at) |
|
|
701 | break; |
|
|
702 | |
|
|
703 | heap [k] = heap [p]; |
|
|
704 | ((W)heap [k])->active = k + 1; |
|
|
705 | k = p; |
|
|
706 | } |
|
|
707 | |
|
|
708 | heap [k] = w; |
|
|
709 | ((W)heap [k])->active = k + 1; |
|
|
710 | } |
|
|
711 | |
|
|
712 | void inline_speed |
|
|
713 | downheap (WT *heap, int N, int k) |
|
|
714 | { |
|
|
715 | WT w = heap [k]; |
|
|
716 | |
|
|
717 | for (;;) |
|
|
718 | { |
|
|
719 | int c = (k << 1) + 1; |
|
|
720 | |
|
|
721 | if (c >= N) |
|
|
722 | break; |
|
|
723 | |
|
|
724 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
725 | ? 1 : 0; |
|
|
726 | |
|
|
727 | if (w->at <= heap [c]->at) |
|
|
728 | break; |
|
|
729 | |
|
|
730 | heap [k] = heap [c]; |
|
|
731 | ((W)heap [k])->active = k + 1; |
|
|
732 | |
|
|
733 | k = c; |
|
|
734 | } |
|
|
735 | |
|
|
736 | heap [k] = w; |
|
|
737 | ((W)heap [k])->active = k + 1; |
|
|
738 | } |
|
|
739 | |
|
|
740 | void inline_size |
|
|
741 | adjustheap (WT *heap, int N, int k) |
|
|
742 | { |
|
|
743 | upheap (heap, k); |
|
|
744 | downheap (heap, N, k); |
|
|
745 | } |
|
|
746 | |
|
|
747 | /*****************************************************************************/ |
|
|
748 | |
|
|
749 | typedef struct |
|
|
750 | { |
|
|
751 | WL head; |
|
|
752 | sig_atomic_t volatile gotsig; |
|
|
753 | } ANSIG; |
|
|
754 | |
|
|
755 | static ANSIG *signals; |
|
|
756 | static int signalmax; |
|
|
757 | |
|
|
758 | static int sigpipe [2]; |
|
|
759 | static sig_atomic_t volatile gotsig; |
|
|
760 | static ev_io sigev; |
|
|
761 | |
|
|
762 | void inline_size |
|
|
763 | signals_init (ANSIG *base, int count) |
|
|
764 | { |
|
|
765 | while (count--) |
|
|
766 | { |
|
|
767 | base->head = 0; |
|
|
768 | base->gotsig = 0; |
|
|
769 | |
|
|
770 | ++base; |
|
|
771 | } |
|
|
772 | } |
|
|
773 | |
|
|
774 | static void |
|
|
775 | sighandler (int signum) |
|
|
776 | { |
|
|
777 | #if _WIN32 |
|
|
778 | signal (signum, sighandler); |
|
|
779 | #endif |
|
|
780 | |
|
|
781 | signals [signum - 1].gotsig = 1; |
|
|
782 | |
|
|
783 | if (!gotsig) |
|
|
784 | { |
|
|
785 | int old_errno = errno; |
|
|
786 | gotsig = 1; |
|
|
787 | write (sigpipe [1], &signum, 1); |
|
|
788 | errno = old_errno; |
|
|
789 | } |
|
|
790 | } |
|
|
791 | |
|
|
792 | void noinline |
|
|
793 | ev_feed_signal_event (EV_P_ int signum) |
|
|
794 | { |
|
|
795 | WL w; |
|
|
796 | |
|
|
797 | #if EV_MULTIPLICITY |
|
|
798 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
799 | #endif |
|
|
800 | |
|
|
801 | --signum; |
|
|
802 | |
|
|
803 | if (signum < 0 || signum >= signalmax) |
|
|
804 | return; |
|
|
805 | |
|
|
806 | signals [signum].gotsig = 0; |
|
|
807 | |
|
|
808 | for (w = signals [signum].head; w; w = w->next) |
|
|
809 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
810 | } |
|
|
811 | |
|
|
812 | static void |
|
|
813 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
814 | { |
|
|
815 | int signum; |
|
|
816 | |
|
|
817 | read (sigpipe [0], &revents, 1); |
|
|
818 | gotsig = 0; |
|
|
819 | |
|
|
820 | for (signum = signalmax; signum--; ) |
|
|
821 | if (signals [signum].gotsig) |
|
|
822 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
823 | } |
|
|
824 | |
|
|
825 | void inline_speed |
|
|
826 | fd_intern (int fd) |
1087 | fd_intern (int fd) |
827 | { |
1088 | { |
828 | #ifdef _WIN32 |
1089 | #ifdef _WIN32 |
829 | int arg = 1; |
1090 | unsigned long arg = 1; |
830 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1091 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
831 | #else |
1092 | #else |
832 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1093 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
833 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1094 | fcntl (fd, F_SETFL, O_NONBLOCK); |
834 | #endif |
1095 | #endif |
835 | } |
1096 | } |
836 | |
1097 | |
|
|
1098 | /*****************************************************************************/ |
|
|
1099 | |
|
|
1100 | /* |
|
|
1101 | * the heap functions want a real array index. array index 0 is guaranteed to not |
|
|
1102 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1103 | * the branching factor of the d-tree. |
|
|
1104 | */ |
|
|
1105 | |
|
|
1106 | /* |
|
|
1107 | * at the moment we allow libev the luxury of two heaps, |
|
|
1108 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1109 | * which is more cache-efficient. |
|
|
1110 | * the difference is about 5% with 50000+ watchers. |
|
|
1111 | */ |
|
|
1112 | #if EV_USE_4HEAP |
|
|
1113 | |
|
|
1114 | #define DHEAP 4 |
|
|
1115 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1116 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1117 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1118 | |
|
|
1119 | /* away from the root */ |
|
|
1120 | inline_speed void |
|
|
1121 | downheap (ANHE *heap, int N, int k) |
|
|
1122 | { |
|
|
1123 | ANHE he = heap [k]; |
|
|
1124 | ANHE *E = heap + N + HEAP0; |
|
|
1125 | |
|
|
1126 | for (;;) |
|
|
1127 | { |
|
|
1128 | ev_tstamp minat; |
|
|
1129 | ANHE *minpos; |
|
|
1130 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1131 | |
|
|
1132 | /* find minimum child */ |
|
|
1133 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1134 | { |
|
|
1135 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1136 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1137 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1138 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1139 | } |
|
|
1140 | else if (pos < E) |
|
|
1141 | { |
|
|
1142 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1143 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1144 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1145 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1146 | } |
|
|
1147 | else |
|
|
1148 | break; |
|
|
1149 | |
|
|
1150 | if (ANHE_at (he) <= minat) |
|
|
1151 | break; |
|
|
1152 | |
|
|
1153 | heap [k] = *minpos; |
|
|
1154 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1155 | |
|
|
1156 | k = minpos - heap; |
|
|
1157 | } |
|
|
1158 | |
|
|
1159 | heap [k] = he; |
|
|
1160 | ev_active (ANHE_w (he)) = k; |
|
|
1161 | } |
|
|
1162 | |
|
|
1163 | #else /* 4HEAP */ |
|
|
1164 | |
|
|
1165 | #define HEAP0 1 |
|
|
1166 | #define HPARENT(k) ((k) >> 1) |
|
|
1167 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1168 | |
|
|
1169 | /* away from the root */ |
|
|
1170 | inline_speed void |
|
|
1171 | downheap (ANHE *heap, int N, int k) |
|
|
1172 | { |
|
|
1173 | ANHE he = heap [k]; |
|
|
1174 | |
|
|
1175 | for (;;) |
|
|
1176 | { |
|
|
1177 | int c = k << 1; |
|
|
1178 | |
|
|
1179 | if (c >= N + HEAP0) |
|
|
1180 | break; |
|
|
1181 | |
|
|
1182 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1183 | ? 1 : 0; |
|
|
1184 | |
|
|
1185 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1186 | break; |
|
|
1187 | |
|
|
1188 | heap [k] = heap [c]; |
|
|
1189 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1190 | |
|
|
1191 | k = c; |
|
|
1192 | } |
|
|
1193 | |
|
|
1194 | heap [k] = he; |
|
|
1195 | ev_active (ANHE_w (he)) = k; |
|
|
1196 | } |
|
|
1197 | #endif |
|
|
1198 | |
|
|
1199 | /* towards the root */ |
|
|
1200 | inline_speed void |
|
|
1201 | upheap (ANHE *heap, int k) |
|
|
1202 | { |
|
|
1203 | ANHE he = heap [k]; |
|
|
1204 | |
|
|
1205 | for (;;) |
|
|
1206 | { |
|
|
1207 | int p = HPARENT (k); |
|
|
1208 | |
|
|
1209 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1210 | break; |
|
|
1211 | |
|
|
1212 | heap [k] = heap [p]; |
|
|
1213 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1214 | k = p; |
|
|
1215 | } |
|
|
1216 | |
|
|
1217 | heap [k] = he; |
|
|
1218 | ev_active (ANHE_w (he)) = k; |
|
|
1219 | } |
|
|
1220 | |
|
|
1221 | /* move an element suitably so it is in a correct place */ |
|
|
1222 | inline_size void |
|
|
1223 | adjustheap (ANHE *heap, int N, int k) |
|
|
1224 | { |
|
|
1225 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1226 | upheap (heap, k); |
|
|
1227 | else |
|
|
1228 | downheap (heap, N, k); |
|
|
1229 | } |
|
|
1230 | |
|
|
1231 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1232 | inline_size void |
|
|
1233 | reheap (ANHE *heap, int N) |
|
|
1234 | { |
|
|
1235 | int i; |
|
|
1236 | |
|
|
1237 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1238 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1239 | for (i = 0; i < N; ++i) |
|
|
1240 | upheap (heap, i + HEAP0); |
|
|
1241 | } |
|
|
1242 | |
|
|
1243 | /*****************************************************************************/ |
|
|
1244 | |
|
|
1245 | /* associate signal watchers to a signal signal */ |
|
|
1246 | typedef struct |
|
|
1247 | { |
|
|
1248 | EV_ATOMIC_T pending; |
|
|
1249 | #if EV_MULTIPLICITY |
|
|
1250 | EV_P; |
|
|
1251 | #endif |
|
|
1252 | WL head; |
|
|
1253 | } ANSIG; |
|
|
1254 | |
|
|
1255 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1256 | |
|
|
1257 | /*****************************************************************************/ |
|
|
1258 | |
|
|
1259 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1260 | |
837 | static void noinline |
1261 | static void noinline |
838 | siginit (EV_P) |
1262 | evpipe_init (EV_P) |
839 | { |
1263 | { |
|
|
1264 | if (!ev_is_active (&pipe_w)) |
|
|
1265 | { |
|
|
1266 | # if EV_USE_EVENTFD |
|
|
1267 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1268 | if (evfd < 0 && errno == EINVAL) |
|
|
1269 | evfd = eventfd (0, 0); |
|
|
1270 | |
|
|
1271 | if (evfd >= 0) |
|
|
1272 | { |
|
|
1273 | evpipe [0] = -1; |
|
|
1274 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1275 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1276 | } |
|
|
1277 | else |
|
|
1278 | # endif |
|
|
1279 | { |
|
|
1280 | while (pipe (evpipe)) |
|
|
1281 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1282 | |
840 | fd_intern (sigpipe [0]); |
1283 | fd_intern (evpipe [0]); |
841 | fd_intern (sigpipe [1]); |
1284 | fd_intern (evpipe [1]); |
|
|
1285 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1286 | } |
842 | |
1287 | |
843 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
844 | ev_io_start (EV_A_ &sigev); |
1288 | ev_io_start (EV_A_ &pipe_w); |
845 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1289 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1290 | } |
|
|
1291 | } |
|
|
1292 | |
|
|
1293 | inline_size void |
|
|
1294 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1295 | { |
|
|
1296 | if (!*flag) |
|
|
1297 | { |
|
|
1298 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1299 | char dummy; |
|
|
1300 | |
|
|
1301 | *flag = 1; |
|
|
1302 | |
|
|
1303 | #if EV_USE_EVENTFD |
|
|
1304 | if (evfd >= 0) |
|
|
1305 | { |
|
|
1306 | uint64_t counter = 1; |
|
|
1307 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1308 | } |
|
|
1309 | else |
|
|
1310 | #endif |
|
|
1311 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1312 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1313 | /* so when you think this write should be a send instead, please find out */ |
|
|
1314 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1315 | /* tell me. thank you. */ |
|
|
1316 | write (evpipe [1], &dummy, 1); |
|
|
1317 | |
|
|
1318 | errno = old_errno; |
|
|
1319 | } |
|
|
1320 | } |
|
|
1321 | |
|
|
1322 | /* called whenever the libev signal pipe */ |
|
|
1323 | /* got some events (signal, async) */ |
|
|
1324 | static void |
|
|
1325 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1326 | { |
|
|
1327 | int i; |
|
|
1328 | |
|
|
1329 | #if EV_USE_EVENTFD |
|
|
1330 | if (evfd >= 0) |
|
|
1331 | { |
|
|
1332 | uint64_t counter; |
|
|
1333 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1334 | } |
|
|
1335 | else |
|
|
1336 | #endif |
|
|
1337 | { |
|
|
1338 | char dummy; |
|
|
1339 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
|
|
1340 | read (evpipe [0], &dummy, 1); |
|
|
1341 | } |
|
|
1342 | |
|
|
1343 | if (sig_pending) |
|
|
1344 | { |
|
|
1345 | sig_pending = 0; |
|
|
1346 | |
|
|
1347 | for (i = EV_NSIG - 1; i--; ) |
|
|
1348 | if (expect_false (signals [i].pending)) |
|
|
1349 | ev_feed_signal_event (EV_A_ i + 1); |
|
|
1350 | } |
|
|
1351 | |
|
|
1352 | #if EV_ASYNC_ENABLE |
|
|
1353 | if (async_pending) |
|
|
1354 | { |
|
|
1355 | async_pending = 0; |
|
|
1356 | |
|
|
1357 | for (i = asynccnt; i--; ) |
|
|
1358 | if (asyncs [i]->sent) |
|
|
1359 | { |
|
|
1360 | asyncs [i]->sent = 0; |
|
|
1361 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1362 | } |
|
|
1363 | } |
|
|
1364 | #endif |
846 | } |
1365 | } |
847 | |
1366 | |
848 | /*****************************************************************************/ |
1367 | /*****************************************************************************/ |
849 | |
1368 | |
|
|
1369 | static void |
|
|
1370 | ev_sighandler (int signum) |
|
|
1371 | { |
|
|
1372 | #if EV_MULTIPLICITY |
|
|
1373 | EV_P = signals [signum - 1].loop; |
|
|
1374 | #endif |
|
|
1375 | |
|
|
1376 | #ifdef _WIN32 |
|
|
1377 | signal (signum, ev_sighandler); |
|
|
1378 | #endif |
|
|
1379 | |
|
|
1380 | signals [signum - 1].pending = 1; |
|
|
1381 | evpipe_write (EV_A_ &sig_pending); |
|
|
1382 | } |
|
|
1383 | |
|
|
1384 | void noinline |
|
|
1385 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1386 | { |
|
|
1387 | WL w; |
|
|
1388 | |
|
|
1389 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1390 | return; |
|
|
1391 | |
|
|
1392 | --signum; |
|
|
1393 | |
|
|
1394 | #if EV_MULTIPLICITY |
|
|
1395 | /* it is permissible to try to feed a signal to the wrong loop */ |
|
|
1396 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
|
|
1397 | |
|
|
1398 | if (expect_false (signals [signum].loop != EV_A)) |
|
|
1399 | return; |
|
|
1400 | #endif |
|
|
1401 | |
|
|
1402 | signals [signum].pending = 0; |
|
|
1403 | |
|
|
1404 | for (w = signals [signum].head; w; w = w->next) |
|
|
1405 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1406 | } |
|
|
1407 | |
|
|
1408 | #if EV_USE_SIGNALFD |
|
|
1409 | static void |
|
|
1410 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1411 | { |
|
|
1412 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1413 | |
|
|
1414 | for (;;) |
|
|
1415 | { |
|
|
1416 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1417 | |
|
|
1418 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1419 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1420 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1421 | |
|
|
1422 | if (res < (ssize_t)sizeof (si)) |
|
|
1423 | break; |
|
|
1424 | } |
|
|
1425 | } |
|
|
1426 | #endif |
|
|
1427 | |
|
|
1428 | #endif |
|
|
1429 | |
|
|
1430 | /*****************************************************************************/ |
|
|
1431 | |
|
|
1432 | #if EV_CHILD_ENABLE |
850 | static WL childs [EV_PID_HASHSIZE]; |
1433 | static WL childs [EV_PID_HASHSIZE]; |
851 | |
1434 | |
852 | #ifndef _WIN32 |
|
|
853 | |
|
|
854 | static ev_signal childev; |
1435 | static ev_signal childev; |
855 | |
1436 | |
856 | void inline_speed |
1437 | #ifndef WIFCONTINUED |
|
|
1438 | # define WIFCONTINUED(status) 0 |
|
|
1439 | #endif |
|
|
1440 | |
|
|
1441 | /* handle a single child status event */ |
|
|
1442 | inline_speed void |
857 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1443 | child_reap (EV_P_ int chain, int pid, int status) |
858 | { |
1444 | { |
859 | ev_child *w; |
1445 | ev_child *w; |
|
|
1446 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
860 | |
1447 | |
861 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1448 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1449 | { |
862 | if (w->pid == pid || !w->pid) |
1450 | if ((w->pid == pid || !w->pid) |
|
|
1451 | && (!traced || (w->flags & 1))) |
863 | { |
1452 | { |
864 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1453 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
865 | w->rpid = pid; |
1454 | w->rpid = pid; |
866 | w->rstatus = status; |
1455 | w->rstatus = status; |
867 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1456 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
868 | } |
1457 | } |
|
|
1458 | } |
869 | } |
1459 | } |
870 | |
1460 | |
871 | #ifndef WCONTINUED |
1461 | #ifndef WCONTINUED |
872 | # define WCONTINUED 0 |
1462 | # define WCONTINUED 0 |
873 | #endif |
1463 | #endif |
874 | |
1464 | |
|
|
1465 | /* called on sigchld etc., calls waitpid */ |
875 | static void |
1466 | static void |
876 | childcb (EV_P_ ev_signal *sw, int revents) |
1467 | childcb (EV_P_ ev_signal *sw, int revents) |
877 | { |
1468 | { |
878 | int pid, status; |
1469 | int pid, status; |
879 | |
1470 | |
… | |
… | |
882 | if (!WCONTINUED |
1473 | if (!WCONTINUED |
883 | || errno != EINVAL |
1474 | || errno != EINVAL |
884 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1475 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
885 | return; |
1476 | return; |
886 | |
1477 | |
887 | /* make sure we are called again until all childs have been reaped */ |
1478 | /* make sure we are called again until all children have been reaped */ |
888 | /* we need to do it this way so that the callback gets called before we continue */ |
1479 | /* we need to do it this way so that the callback gets called before we continue */ |
889 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1480 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
890 | |
1481 | |
891 | child_reap (EV_A_ sw, pid, pid, status); |
1482 | child_reap (EV_A_ pid, pid, status); |
892 | if (EV_PID_HASHSIZE > 1) |
1483 | if ((EV_PID_HASHSIZE) > 1) |
893 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1484 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
894 | } |
1485 | } |
895 | |
1486 | |
896 | #endif |
1487 | #endif |
897 | |
1488 | |
898 | /*****************************************************************************/ |
1489 | /*****************************************************************************/ |
… | |
… | |
960 | /* kqueue is borked on everything but netbsd apparently */ |
1551 | /* kqueue is borked on everything but netbsd apparently */ |
961 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1552 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
962 | flags &= ~EVBACKEND_KQUEUE; |
1553 | flags &= ~EVBACKEND_KQUEUE; |
963 | #endif |
1554 | #endif |
964 | #ifdef __APPLE__ |
1555 | #ifdef __APPLE__ |
965 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1556 | /* only select works correctly on that "unix-certified" platform */ |
966 | flags &= ~EVBACKEND_POLL; |
1557 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1558 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1559 | #endif |
|
|
1560 | #ifdef __FreeBSD__ |
|
|
1561 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
967 | #endif |
1562 | #endif |
968 | |
1563 | |
969 | return flags; |
1564 | return flags; |
970 | } |
1565 | } |
971 | |
1566 | |
972 | unsigned int |
1567 | unsigned int |
973 | ev_embeddable_backends (void) |
1568 | ev_embeddable_backends (void) |
974 | { |
1569 | { |
|
|
1570 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1571 | |
975 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1572 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
976 | return EVBACKEND_KQUEUE |
1573 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
977 | | EVBACKEND_PORT; |
1574 | flags &= ~EVBACKEND_EPOLL; |
|
|
1575 | |
|
|
1576 | return flags; |
978 | } |
1577 | } |
979 | |
1578 | |
980 | unsigned int |
1579 | unsigned int |
981 | ev_backend (EV_P) |
1580 | ev_backend (EV_P) |
982 | { |
1581 | { |
983 | return backend; |
1582 | return backend; |
984 | } |
1583 | } |
985 | |
1584 | |
|
|
1585 | #if EV_FEATURE_API |
986 | unsigned int |
1586 | unsigned int |
987 | ev_loop_count (EV_P) |
1587 | ev_iteration (EV_P) |
988 | { |
1588 | { |
989 | return loop_count; |
1589 | return loop_count; |
990 | } |
1590 | } |
991 | |
1591 | |
|
|
1592 | unsigned int |
|
|
1593 | ev_depth (EV_P) |
|
|
1594 | { |
|
|
1595 | return loop_depth; |
|
|
1596 | } |
|
|
1597 | |
992 | void |
1598 | void |
993 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1599 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
994 | { |
1600 | { |
995 | io_blocktime = interval; |
1601 | io_blocktime = interval; |
996 | } |
1602 | } |
… | |
… | |
999 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1605 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1000 | { |
1606 | { |
1001 | timeout_blocktime = interval; |
1607 | timeout_blocktime = interval; |
1002 | } |
1608 | } |
1003 | |
1609 | |
|
|
1610 | void |
|
|
1611 | ev_set_userdata (EV_P_ void *data) |
|
|
1612 | { |
|
|
1613 | userdata = data; |
|
|
1614 | } |
|
|
1615 | |
|
|
1616 | void * |
|
|
1617 | ev_userdata (EV_P) |
|
|
1618 | { |
|
|
1619 | return userdata; |
|
|
1620 | } |
|
|
1621 | |
|
|
1622 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1623 | { |
|
|
1624 | invoke_cb = invoke_pending_cb; |
|
|
1625 | } |
|
|
1626 | |
|
|
1627 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1628 | { |
|
|
1629 | release_cb = release; |
|
|
1630 | acquire_cb = acquire; |
|
|
1631 | } |
|
|
1632 | #endif |
|
|
1633 | |
|
|
1634 | /* initialise a loop structure, must be zero-initialised */ |
1004 | static void noinline |
1635 | static void noinline |
1005 | loop_init (EV_P_ unsigned int flags) |
1636 | loop_init (EV_P_ unsigned int flags) |
1006 | { |
1637 | { |
1007 | if (!backend) |
1638 | if (!backend) |
1008 | { |
1639 | { |
|
|
1640 | #if EV_USE_REALTIME |
|
|
1641 | if (!have_realtime) |
|
|
1642 | { |
|
|
1643 | struct timespec ts; |
|
|
1644 | |
|
|
1645 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1646 | have_realtime = 1; |
|
|
1647 | } |
|
|
1648 | #endif |
|
|
1649 | |
1009 | #if EV_USE_MONOTONIC |
1650 | #if EV_USE_MONOTONIC |
|
|
1651 | if (!have_monotonic) |
1010 | { |
1652 | { |
1011 | struct timespec ts; |
1653 | struct timespec ts; |
|
|
1654 | |
1012 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1655 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1013 | have_monotonic = 1; |
1656 | have_monotonic = 1; |
1014 | } |
1657 | } |
1015 | #endif |
1658 | #endif |
1016 | |
|
|
1017 | ev_rt_now = ev_time (); |
|
|
1018 | mn_now = get_clock (); |
|
|
1019 | now_floor = mn_now; |
|
|
1020 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1021 | |
|
|
1022 | io_blocktime = 0.; |
|
|
1023 | timeout_blocktime = 0.; |
|
|
1024 | |
1659 | |
1025 | /* pid check not overridable via env */ |
1660 | /* pid check not overridable via env */ |
1026 | #ifndef _WIN32 |
1661 | #ifndef _WIN32 |
1027 | if (flags & EVFLAG_FORKCHECK) |
1662 | if (flags & EVFLAG_FORKCHECK) |
1028 | curpid = getpid (); |
1663 | curpid = getpid (); |
… | |
… | |
1031 | if (!(flags & EVFLAG_NOENV) |
1666 | if (!(flags & EVFLAG_NOENV) |
1032 | && !enable_secure () |
1667 | && !enable_secure () |
1033 | && getenv ("LIBEV_FLAGS")) |
1668 | && getenv ("LIBEV_FLAGS")) |
1034 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1669 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1035 | |
1670 | |
|
|
1671 | ev_rt_now = ev_time (); |
|
|
1672 | mn_now = get_clock (); |
|
|
1673 | now_floor = mn_now; |
|
|
1674 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1675 | #if EV_FEATURE_API |
|
|
1676 | invoke_cb = ev_invoke_pending; |
|
|
1677 | #endif |
|
|
1678 | |
|
|
1679 | io_blocktime = 0.; |
|
|
1680 | timeout_blocktime = 0.; |
|
|
1681 | backend = 0; |
|
|
1682 | backend_fd = -1; |
|
|
1683 | sig_pending = 0; |
|
|
1684 | #if EV_ASYNC_ENABLE |
|
|
1685 | async_pending = 0; |
|
|
1686 | #endif |
|
|
1687 | #if EV_USE_INOTIFY |
|
|
1688 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
1689 | #endif |
|
|
1690 | #if EV_USE_SIGNALFD |
|
|
1691 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
1692 | #endif |
|
|
1693 | |
1036 | if (!(flags & 0x0000ffffUL)) |
1694 | if (!(flags & 0x0000ffffU)) |
1037 | flags |= ev_recommended_backends (); |
1695 | flags |= ev_recommended_backends (); |
1038 | |
|
|
1039 | backend = 0; |
|
|
1040 | backend_fd = -1; |
|
|
1041 | #if EV_USE_INOTIFY |
|
|
1042 | fs_fd = -2; |
|
|
1043 | #endif |
|
|
1044 | |
1696 | |
1045 | #if EV_USE_PORT |
1697 | #if EV_USE_PORT |
1046 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1698 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1047 | #endif |
1699 | #endif |
1048 | #if EV_USE_KQUEUE |
1700 | #if EV_USE_KQUEUE |
… | |
… | |
1056 | #endif |
1708 | #endif |
1057 | #if EV_USE_SELECT |
1709 | #if EV_USE_SELECT |
1058 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1710 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1059 | #endif |
1711 | #endif |
1060 | |
1712 | |
|
|
1713 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1714 | |
|
|
1715 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1061 | ev_init (&sigev, sigcb); |
1716 | ev_init (&pipe_w, pipecb); |
1062 | ev_set_priority (&sigev, EV_MAXPRI); |
1717 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1718 | #endif |
1063 | } |
1719 | } |
1064 | } |
1720 | } |
1065 | |
1721 | |
|
|
1722 | /* free up a loop structure */ |
1066 | static void noinline |
1723 | static void noinline |
1067 | loop_destroy (EV_P) |
1724 | loop_destroy (EV_P) |
1068 | { |
1725 | { |
1069 | int i; |
1726 | int i; |
|
|
1727 | |
|
|
1728 | if (ev_is_active (&pipe_w)) |
|
|
1729 | { |
|
|
1730 | /*ev_ref (EV_A);*/ |
|
|
1731 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
|
|
1732 | |
|
|
1733 | #if EV_USE_EVENTFD |
|
|
1734 | if (evfd >= 0) |
|
|
1735 | close (evfd); |
|
|
1736 | #endif |
|
|
1737 | |
|
|
1738 | if (evpipe [0] >= 0) |
|
|
1739 | { |
|
|
1740 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1741 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1742 | } |
|
|
1743 | } |
|
|
1744 | |
|
|
1745 | #if EV_USE_SIGNALFD |
|
|
1746 | if (ev_is_active (&sigfd_w)) |
|
|
1747 | close (sigfd); |
|
|
1748 | #endif |
1070 | |
1749 | |
1071 | #if EV_USE_INOTIFY |
1750 | #if EV_USE_INOTIFY |
1072 | if (fs_fd >= 0) |
1751 | if (fs_fd >= 0) |
1073 | close (fs_fd); |
1752 | close (fs_fd); |
1074 | #endif |
1753 | #endif |
… | |
… | |
1098 | #if EV_IDLE_ENABLE |
1777 | #if EV_IDLE_ENABLE |
1099 | array_free (idle, [i]); |
1778 | array_free (idle, [i]); |
1100 | #endif |
1779 | #endif |
1101 | } |
1780 | } |
1102 | |
1781 | |
1103 | ev_free (anfds); anfdmax = 0; |
1782 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1104 | |
1783 | |
1105 | /* have to use the microsoft-never-gets-it-right macro */ |
1784 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1785 | array_free (rfeed, EMPTY); |
1106 | array_free (fdchange, EMPTY); |
1786 | array_free (fdchange, EMPTY); |
1107 | array_free (timer, EMPTY); |
1787 | array_free (timer, EMPTY); |
1108 | #if EV_PERIODIC_ENABLE |
1788 | #if EV_PERIODIC_ENABLE |
1109 | array_free (periodic, EMPTY); |
1789 | array_free (periodic, EMPTY); |
1110 | #endif |
1790 | #endif |
1111 | #if EV_FORK_ENABLE |
1791 | #if EV_FORK_ENABLE |
1112 | array_free (fork, EMPTY); |
1792 | array_free (fork, EMPTY); |
1113 | #endif |
1793 | #endif |
1114 | array_free (prepare, EMPTY); |
1794 | array_free (prepare, EMPTY); |
1115 | array_free (check, EMPTY); |
1795 | array_free (check, EMPTY); |
|
|
1796 | #if EV_ASYNC_ENABLE |
|
|
1797 | array_free (async, EMPTY); |
|
|
1798 | #endif |
1116 | |
1799 | |
1117 | backend = 0; |
1800 | backend = 0; |
1118 | } |
1801 | } |
1119 | |
1802 | |
|
|
1803 | #if EV_USE_INOTIFY |
1120 | void inline_size infy_fork (EV_P); |
1804 | inline_size void infy_fork (EV_P); |
|
|
1805 | #endif |
1121 | |
1806 | |
1122 | void inline_size |
1807 | inline_size void |
1123 | loop_fork (EV_P) |
1808 | loop_fork (EV_P) |
1124 | { |
1809 | { |
1125 | #if EV_USE_PORT |
1810 | #if EV_USE_PORT |
1126 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1811 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1127 | #endif |
1812 | #endif |
… | |
… | |
1133 | #endif |
1818 | #endif |
1134 | #if EV_USE_INOTIFY |
1819 | #if EV_USE_INOTIFY |
1135 | infy_fork (EV_A); |
1820 | infy_fork (EV_A); |
1136 | #endif |
1821 | #endif |
1137 | |
1822 | |
1138 | if (ev_is_active (&sigev)) |
1823 | if (ev_is_active (&pipe_w)) |
1139 | { |
1824 | { |
1140 | /* default loop */ |
1825 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1826 | /* while we modify the fd vars */ |
|
|
1827 | sig_pending = 1; |
|
|
1828 | #if EV_ASYNC_ENABLE |
|
|
1829 | async_pending = 1; |
|
|
1830 | #endif |
1141 | |
1831 | |
1142 | ev_ref (EV_A); |
1832 | ev_ref (EV_A); |
1143 | ev_io_stop (EV_A_ &sigev); |
1833 | ev_io_stop (EV_A_ &pipe_w); |
1144 | close (sigpipe [0]); |
|
|
1145 | close (sigpipe [1]); |
|
|
1146 | |
1834 | |
1147 | while (pipe (sigpipe)) |
1835 | #if EV_USE_EVENTFD |
1148 | syserr ("(libev) error creating pipe"); |
1836 | if (evfd >= 0) |
|
|
1837 | close (evfd); |
|
|
1838 | #endif |
1149 | |
1839 | |
|
|
1840 | if (evpipe [0] >= 0) |
|
|
1841 | { |
|
|
1842 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1843 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1844 | } |
|
|
1845 | |
|
|
1846 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1150 | siginit (EV_A); |
1847 | evpipe_init (EV_A); |
|
|
1848 | /* now iterate over everything, in case we missed something */ |
|
|
1849 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1850 | #endif |
1151 | } |
1851 | } |
1152 | |
1852 | |
1153 | postfork = 0; |
1853 | postfork = 0; |
1154 | } |
1854 | } |
1155 | |
1855 | |
1156 | #if EV_MULTIPLICITY |
1856 | #if EV_MULTIPLICITY |
|
|
1857 | |
1157 | struct ev_loop * |
1858 | struct ev_loop * |
1158 | ev_loop_new (unsigned int flags) |
1859 | ev_loop_new (unsigned int flags) |
1159 | { |
1860 | { |
1160 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1861 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1161 | |
1862 | |
1162 | memset (loop, 0, sizeof (struct ev_loop)); |
1863 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1163 | |
|
|
1164 | loop_init (EV_A_ flags); |
1864 | loop_init (EV_A_ flags); |
1165 | |
1865 | |
1166 | if (ev_backend (EV_A)) |
1866 | if (ev_backend (EV_A)) |
1167 | return loop; |
1867 | return EV_A; |
1168 | |
1868 | |
1169 | return 0; |
1869 | return 0; |
1170 | } |
1870 | } |
1171 | |
1871 | |
1172 | void |
1872 | void |
… | |
… | |
1177 | } |
1877 | } |
1178 | |
1878 | |
1179 | void |
1879 | void |
1180 | ev_loop_fork (EV_P) |
1880 | ev_loop_fork (EV_P) |
1181 | { |
1881 | { |
1182 | postfork = 1; |
1882 | postfork = 1; /* must be in line with ev_default_fork */ |
1183 | } |
1883 | } |
|
|
1884 | #endif /* multiplicity */ |
1184 | |
1885 | |
|
|
1886 | #if EV_VERIFY |
|
|
1887 | static void noinline |
|
|
1888 | verify_watcher (EV_P_ W w) |
|
|
1889 | { |
|
|
1890 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1891 | |
|
|
1892 | if (w->pending) |
|
|
1893 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1894 | } |
|
|
1895 | |
|
|
1896 | static void noinline |
|
|
1897 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1898 | { |
|
|
1899 | int i; |
|
|
1900 | |
|
|
1901 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1902 | { |
|
|
1903 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1904 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1905 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1906 | |
|
|
1907 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1908 | } |
|
|
1909 | } |
|
|
1910 | |
|
|
1911 | static void noinline |
|
|
1912 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1913 | { |
|
|
1914 | while (cnt--) |
|
|
1915 | { |
|
|
1916 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1917 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1918 | } |
|
|
1919 | } |
|
|
1920 | #endif |
|
|
1921 | |
|
|
1922 | #if EV_FEATURE_API |
|
|
1923 | void |
|
|
1924 | ev_verify (EV_P) |
|
|
1925 | { |
|
|
1926 | #if EV_VERIFY |
|
|
1927 | int i; |
|
|
1928 | WL w; |
|
|
1929 | |
|
|
1930 | assert (activecnt >= -1); |
|
|
1931 | |
|
|
1932 | assert (fdchangemax >= fdchangecnt); |
|
|
1933 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1934 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1935 | |
|
|
1936 | assert (anfdmax >= 0); |
|
|
1937 | for (i = 0; i < anfdmax; ++i) |
|
|
1938 | for (w = anfds [i].head; w; w = w->next) |
|
|
1939 | { |
|
|
1940 | verify_watcher (EV_A_ (W)w); |
|
|
1941 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1942 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1943 | } |
|
|
1944 | |
|
|
1945 | assert (timermax >= timercnt); |
|
|
1946 | verify_heap (EV_A_ timers, timercnt); |
|
|
1947 | |
|
|
1948 | #if EV_PERIODIC_ENABLE |
|
|
1949 | assert (periodicmax >= periodiccnt); |
|
|
1950 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1951 | #endif |
|
|
1952 | |
|
|
1953 | for (i = NUMPRI; i--; ) |
|
|
1954 | { |
|
|
1955 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1956 | #if EV_IDLE_ENABLE |
|
|
1957 | assert (idleall >= 0); |
|
|
1958 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1959 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1960 | #endif |
|
|
1961 | } |
|
|
1962 | |
|
|
1963 | #if EV_FORK_ENABLE |
|
|
1964 | assert (forkmax >= forkcnt); |
|
|
1965 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1966 | #endif |
|
|
1967 | |
|
|
1968 | #if EV_ASYNC_ENABLE |
|
|
1969 | assert (asyncmax >= asynccnt); |
|
|
1970 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1971 | #endif |
|
|
1972 | |
|
|
1973 | #if EV_PREPARE_ENABLE |
|
|
1974 | assert (preparemax >= preparecnt); |
|
|
1975 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1976 | #endif |
|
|
1977 | |
|
|
1978 | #if EV_CHECK_ENABLE |
|
|
1979 | assert (checkmax >= checkcnt); |
|
|
1980 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1981 | #endif |
|
|
1982 | |
|
|
1983 | # if 0 |
|
|
1984 | #if EV_CHILD_ENABLE |
|
|
1985 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1986 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1987 | #endif |
|
|
1988 | # endif |
|
|
1989 | #endif |
|
|
1990 | } |
1185 | #endif |
1991 | #endif |
1186 | |
1992 | |
1187 | #if EV_MULTIPLICITY |
1993 | #if EV_MULTIPLICITY |
1188 | struct ev_loop * |
1994 | struct ev_loop * |
1189 | ev_default_loop_init (unsigned int flags) |
1995 | ev_default_loop_init (unsigned int flags) |
1190 | #else |
1996 | #else |
1191 | int |
1997 | int |
1192 | ev_default_loop (unsigned int flags) |
1998 | ev_default_loop (unsigned int flags) |
1193 | #endif |
1999 | #endif |
1194 | { |
2000 | { |
1195 | if (sigpipe [0] == sigpipe [1]) |
|
|
1196 | if (pipe (sigpipe)) |
|
|
1197 | return 0; |
|
|
1198 | |
|
|
1199 | if (!ev_default_loop_ptr) |
2001 | if (!ev_default_loop_ptr) |
1200 | { |
2002 | { |
1201 | #if EV_MULTIPLICITY |
2003 | #if EV_MULTIPLICITY |
1202 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2004 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1203 | #else |
2005 | #else |
1204 | ev_default_loop_ptr = 1; |
2006 | ev_default_loop_ptr = 1; |
1205 | #endif |
2007 | #endif |
1206 | |
2008 | |
1207 | loop_init (EV_A_ flags); |
2009 | loop_init (EV_A_ flags); |
1208 | |
2010 | |
1209 | if (ev_backend (EV_A)) |
2011 | if (ev_backend (EV_A)) |
1210 | { |
2012 | { |
1211 | siginit (EV_A); |
2013 | #if EV_CHILD_ENABLE |
1212 | |
|
|
1213 | #ifndef _WIN32 |
|
|
1214 | ev_signal_init (&childev, childcb, SIGCHLD); |
2014 | ev_signal_init (&childev, childcb, SIGCHLD); |
1215 | ev_set_priority (&childev, EV_MAXPRI); |
2015 | ev_set_priority (&childev, EV_MAXPRI); |
1216 | ev_signal_start (EV_A_ &childev); |
2016 | ev_signal_start (EV_A_ &childev); |
1217 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2017 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1218 | #endif |
2018 | #endif |
… | |
… | |
1226 | |
2026 | |
1227 | void |
2027 | void |
1228 | ev_default_destroy (void) |
2028 | ev_default_destroy (void) |
1229 | { |
2029 | { |
1230 | #if EV_MULTIPLICITY |
2030 | #if EV_MULTIPLICITY |
1231 | struct ev_loop *loop = ev_default_loop_ptr; |
2031 | EV_P = ev_default_loop_ptr; |
1232 | #endif |
2032 | #endif |
1233 | |
2033 | |
1234 | #ifndef _WIN32 |
2034 | ev_default_loop_ptr = 0; |
|
|
2035 | |
|
|
2036 | #if EV_CHILD_ENABLE |
1235 | ev_ref (EV_A); /* child watcher */ |
2037 | ev_ref (EV_A); /* child watcher */ |
1236 | ev_signal_stop (EV_A_ &childev); |
2038 | ev_signal_stop (EV_A_ &childev); |
1237 | #endif |
2039 | #endif |
1238 | |
2040 | |
1239 | ev_ref (EV_A); /* signal watcher */ |
|
|
1240 | ev_io_stop (EV_A_ &sigev); |
|
|
1241 | |
|
|
1242 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1243 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1244 | |
|
|
1245 | loop_destroy (EV_A); |
2041 | loop_destroy (EV_A); |
1246 | } |
2042 | } |
1247 | |
2043 | |
1248 | void |
2044 | void |
1249 | ev_default_fork (void) |
2045 | ev_default_fork (void) |
1250 | { |
2046 | { |
1251 | #if EV_MULTIPLICITY |
2047 | #if EV_MULTIPLICITY |
1252 | struct ev_loop *loop = ev_default_loop_ptr; |
2048 | EV_P = ev_default_loop_ptr; |
1253 | #endif |
2049 | #endif |
1254 | |
2050 | |
1255 | if (backend) |
2051 | postfork = 1; /* must be in line with ev_loop_fork */ |
1256 | postfork = 1; |
|
|
1257 | } |
2052 | } |
1258 | |
2053 | |
1259 | /*****************************************************************************/ |
2054 | /*****************************************************************************/ |
1260 | |
2055 | |
1261 | void |
2056 | void |
1262 | ev_invoke (EV_P_ void *w, int revents) |
2057 | ev_invoke (EV_P_ void *w, int revents) |
1263 | { |
2058 | { |
1264 | EV_CB_INVOKE ((W)w, revents); |
2059 | EV_CB_INVOKE ((W)w, revents); |
1265 | } |
2060 | } |
1266 | |
2061 | |
1267 | void inline_speed |
2062 | unsigned int |
1268 | call_pending (EV_P) |
2063 | ev_pending_count (EV_P) |
|
|
2064 | { |
|
|
2065 | int pri; |
|
|
2066 | unsigned int count = 0; |
|
|
2067 | |
|
|
2068 | for (pri = NUMPRI; pri--; ) |
|
|
2069 | count += pendingcnt [pri]; |
|
|
2070 | |
|
|
2071 | return count; |
|
|
2072 | } |
|
|
2073 | |
|
|
2074 | void noinline |
|
|
2075 | ev_invoke_pending (EV_P) |
1269 | { |
2076 | { |
1270 | int pri; |
2077 | int pri; |
1271 | |
2078 | |
1272 | for (pri = NUMPRI; pri--; ) |
2079 | for (pri = NUMPRI; pri--; ) |
1273 | while (pendingcnt [pri]) |
2080 | while (pendingcnt [pri]) |
1274 | { |
2081 | { |
1275 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2082 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1276 | |
2083 | |
1277 | if (expect_true (p->w)) |
|
|
1278 | { |
|
|
1279 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2084 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2085 | /* ^ this is no longer true, as pending_w could be here */ |
1280 | |
2086 | |
1281 | p->w->pending = 0; |
2087 | p->w->pending = 0; |
1282 | EV_CB_INVOKE (p->w, p->events); |
2088 | EV_CB_INVOKE (p->w, p->events); |
1283 | } |
2089 | EV_FREQUENT_CHECK; |
1284 | } |
2090 | } |
1285 | } |
2091 | } |
1286 | |
2092 | |
1287 | void inline_size |
|
|
1288 | timers_reify (EV_P) |
|
|
1289 | { |
|
|
1290 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1291 | { |
|
|
1292 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1293 | |
|
|
1294 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1295 | |
|
|
1296 | /* first reschedule or stop timer */ |
|
|
1297 | if (w->repeat) |
|
|
1298 | { |
|
|
1299 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1300 | |
|
|
1301 | ((WT)w)->at += w->repeat; |
|
|
1302 | if (((WT)w)->at < mn_now) |
|
|
1303 | ((WT)w)->at = mn_now; |
|
|
1304 | |
|
|
1305 | downheap (timers, timercnt, 0); |
|
|
1306 | } |
|
|
1307 | else |
|
|
1308 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1309 | |
|
|
1310 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1311 | } |
|
|
1312 | } |
|
|
1313 | |
|
|
1314 | #if EV_PERIODIC_ENABLE |
|
|
1315 | void inline_size |
|
|
1316 | periodics_reify (EV_P) |
|
|
1317 | { |
|
|
1318 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1319 | { |
|
|
1320 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1321 | |
|
|
1322 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1323 | |
|
|
1324 | /* first reschedule or stop timer */ |
|
|
1325 | if (w->reschedule_cb) |
|
|
1326 | { |
|
|
1327 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1328 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1329 | downheap (periodics, periodiccnt, 0); |
|
|
1330 | } |
|
|
1331 | else if (w->interval) |
|
|
1332 | { |
|
|
1333 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1334 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1335 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1336 | downheap (periodics, periodiccnt, 0); |
|
|
1337 | } |
|
|
1338 | else |
|
|
1339 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1340 | |
|
|
1341 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1342 | } |
|
|
1343 | } |
|
|
1344 | |
|
|
1345 | static void noinline |
|
|
1346 | periodics_reschedule (EV_P) |
|
|
1347 | { |
|
|
1348 | int i; |
|
|
1349 | |
|
|
1350 | /* adjust periodics after time jump */ |
|
|
1351 | for (i = 0; i < periodiccnt; ++i) |
|
|
1352 | { |
|
|
1353 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1354 | |
|
|
1355 | if (w->reschedule_cb) |
|
|
1356 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1357 | else if (w->interval) |
|
|
1358 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1359 | } |
|
|
1360 | |
|
|
1361 | /* now rebuild the heap */ |
|
|
1362 | for (i = periodiccnt >> 1; i--; ) |
|
|
1363 | downheap (periodics, periodiccnt, i); |
|
|
1364 | } |
|
|
1365 | #endif |
|
|
1366 | |
|
|
1367 | #if EV_IDLE_ENABLE |
2093 | #if EV_IDLE_ENABLE |
1368 | void inline_size |
2094 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2095 | /* only when higher priorities are idle" logic */ |
|
|
2096 | inline_size void |
1369 | idle_reify (EV_P) |
2097 | idle_reify (EV_P) |
1370 | { |
2098 | { |
1371 | if (expect_false (idleall)) |
2099 | if (expect_false (idleall)) |
1372 | { |
2100 | { |
1373 | int pri; |
2101 | int pri; |
… | |
… | |
1385 | } |
2113 | } |
1386 | } |
2114 | } |
1387 | } |
2115 | } |
1388 | #endif |
2116 | #endif |
1389 | |
2117 | |
1390 | void inline_speed |
2118 | /* make timers pending */ |
|
|
2119 | inline_size void |
|
|
2120 | timers_reify (EV_P) |
|
|
2121 | { |
|
|
2122 | EV_FREQUENT_CHECK; |
|
|
2123 | |
|
|
2124 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2125 | { |
|
|
2126 | do |
|
|
2127 | { |
|
|
2128 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2129 | |
|
|
2130 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2131 | |
|
|
2132 | /* first reschedule or stop timer */ |
|
|
2133 | if (w->repeat) |
|
|
2134 | { |
|
|
2135 | ev_at (w) += w->repeat; |
|
|
2136 | if (ev_at (w) < mn_now) |
|
|
2137 | ev_at (w) = mn_now; |
|
|
2138 | |
|
|
2139 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2140 | |
|
|
2141 | ANHE_at_cache (timers [HEAP0]); |
|
|
2142 | downheap (timers, timercnt, HEAP0); |
|
|
2143 | } |
|
|
2144 | else |
|
|
2145 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2146 | |
|
|
2147 | EV_FREQUENT_CHECK; |
|
|
2148 | feed_reverse (EV_A_ (W)w); |
|
|
2149 | } |
|
|
2150 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2151 | |
|
|
2152 | feed_reverse_done (EV_A_ EV_TIMER); |
|
|
2153 | } |
|
|
2154 | } |
|
|
2155 | |
|
|
2156 | #if EV_PERIODIC_ENABLE |
|
|
2157 | /* make periodics pending */ |
|
|
2158 | inline_size void |
|
|
2159 | periodics_reify (EV_P) |
|
|
2160 | { |
|
|
2161 | EV_FREQUENT_CHECK; |
|
|
2162 | |
|
|
2163 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2164 | { |
|
|
2165 | int feed_count = 0; |
|
|
2166 | |
|
|
2167 | do |
|
|
2168 | { |
|
|
2169 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2170 | |
|
|
2171 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2172 | |
|
|
2173 | /* first reschedule or stop timer */ |
|
|
2174 | if (w->reschedule_cb) |
|
|
2175 | { |
|
|
2176 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2177 | |
|
|
2178 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2179 | |
|
|
2180 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2181 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2182 | } |
|
|
2183 | else if (w->interval) |
|
|
2184 | { |
|
|
2185 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2186 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2187 | /* this might happen because of floating point inexactness */ |
|
|
2188 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2189 | { |
|
|
2190 | ev_at (w) += w->interval; |
|
|
2191 | |
|
|
2192 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2193 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2194 | /* has effectively asked to get triggered more often than possible */ |
|
|
2195 | if (ev_at (w) < ev_rt_now) |
|
|
2196 | ev_at (w) = ev_rt_now; |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2200 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2201 | } |
|
|
2202 | else |
|
|
2203 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2204 | |
|
|
2205 | EV_FREQUENT_CHECK; |
|
|
2206 | feed_reverse (EV_A_ (W)w); |
|
|
2207 | } |
|
|
2208 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2209 | |
|
|
2210 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2211 | } |
|
|
2212 | } |
|
|
2213 | |
|
|
2214 | /* simply recalculate all periodics */ |
|
|
2215 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
2216 | static void noinline |
|
|
2217 | periodics_reschedule (EV_P) |
|
|
2218 | { |
|
|
2219 | int i; |
|
|
2220 | |
|
|
2221 | /* adjust periodics after time jump */ |
|
|
2222 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2223 | { |
|
|
2224 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2225 | |
|
|
2226 | if (w->reschedule_cb) |
|
|
2227 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2228 | else if (w->interval) |
|
|
2229 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2230 | |
|
|
2231 | ANHE_at_cache (periodics [i]); |
|
|
2232 | } |
|
|
2233 | |
|
|
2234 | reheap (periodics, periodiccnt); |
|
|
2235 | } |
|
|
2236 | #endif |
|
|
2237 | |
|
|
2238 | /* adjust all timers by a given offset */ |
|
|
2239 | static void noinline |
|
|
2240 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2241 | { |
|
|
2242 | int i; |
|
|
2243 | |
|
|
2244 | for (i = 0; i < timercnt; ++i) |
|
|
2245 | { |
|
|
2246 | ANHE *he = timers + i + HEAP0; |
|
|
2247 | ANHE_w (*he)->at += adjust; |
|
|
2248 | ANHE_at_cache (*he); |
|
|
2249 | } |
|
|
2250 | } |
|
|
2251 | |
|
|
2252 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2253 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2254 | inline_speed void |
1391 | time_update (EV_P_ ev_tstamp max_block) |
2255 | time_update (EV_P_ ev_tstamp max_block) |
1392 | { |
2256 | { |
1393 | int i; |
|
|
1394 | |
|
|
1395 | #if EV_USE_MONOTONIC |
2257 | #if EV_USE_MONOTONIC |
1396 | if (expect_true (have_monotonic)) |
2258 | if (expect_true (have_monotonic)) |
1397 | { |
2259 | { |
|
|
2260 | int i; |
1398 | ev_tstamp odiff = rtmn_diff; |
2261 | ev_tstamp odiff = rtmn_diff; |
1399 | |
2262 | |
1400 | mn_now = get_clock (); |
2263 | mn_now = get_clock (); |
1401 | |
2264 | |
1402 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2265 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1420 | */ |
2283 | */ |
1421 | for (i = 4; --i; ) |
2284 | for (i = 4; --i; ) |
1422 | { |
2285 | { |
1423 | rtmn_diff = ev_rt_now - mn_now; |
2286 | rtmn_diff = ev_rt_now - mn_now; |
1424 | |
2287 | |
1425 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2288 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1426 | return; /* all is well */ |
2289 | return; /* all is well */ |
1427 | |
2290 | |
1428 | ev_rt_now = ev_time (); |
2291 | ev_rt_now = ev_time (); |
1429 | mn_now = get_clock (); |
2292 | mn_now = get_clock (); |
1430 | now_floor = mn_now; |
2293 | now_floor = mn_now; |
1431 | } |
2294 | } |
1432 | |
2295 | |
|
|
2296 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2297 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1433 | # if EV_PERIODIC_ENABLE |
2298 | # if EV_PERIODIC_ENABLE |
1434 | periodics_reschedule (EV_A); |
2299 | periodics_reschedule (EV_A); |
1435 | # endif |
2300 | # endif |
1436 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1437 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1438 | } |
2301 | } |
1439 | else |
2302 | else |
1440 | #endif |
2303 | #endif |
1441 | { |
2304 | { |
1442 | ev_rt_now = ev_time (); |
2305 | ev_rt_now = ev_time (); |
1443 | |
2306 | |
1444 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2307 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1445 | { |
2308 | { |
|
|
2309 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2310 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1446 | #if EV_PERIODIC_ENABLE |
2311 | #if EV_PERIODIC_ENABLE |
1447 | periodics_reschedule (EV_A); |
2312 | periodics_reschedule (EV_A); |
1448 | #endif |
2313 | #endif |
1449 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1450 | for (i = 0; i < timercnt; ++i) |
|
|
1451 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1452 | } |
2314 | } |
1453 | |
2315 | |
1454 | mn_now = ev_rt_now; |
2316 | mn_now = ev_rt_now; |
1455 | } |
2317 | } |
1456 | } |
2318 | } |
1457 | |
2319 | |
1458 | void |
2320 | void |
1459 | ev_ref (EV_P) |
|
|
1460 | { |
|
|
1461 | ++activecnt; |
|
|
1462 | } |
|
|
1463 | |
|
|
1464 | void |
|
|
1465 | ev_unref (EV_P) |
|
|
1466 | { |
|
|
1467 | --activecnt; |
|
|
1468 | } |
|
|
1469 | |
|
|
1470 | static int loop_done; |
|
|
1471 | |
|
|
1472 | void |
|
|
1473 | ev_loop (EV_P_ int flags) |
2321 | ev_run (EV_P_ int flags) |
1474 | { |
2322 | { |
1475 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2323 | #if EV_FEATURE_API |
1476 | ? EVUNLOOP_ONE |
2324 | ++loop_depth; |
1477 | : EVUNLOOP_CANCEL; |
2325 | #endif |
1478 | |
2326 | |
|
|
2327 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2328 | |
|
|
2329 | loop_done = EVBREAK_CANCEL; |
|
|
2330 | |
1479 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2331 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1480 | |
2332 | |
1481 | do |
2333 | do |
1482 | { |
2334 | { |
|
|
2335 | #if EV_VERIFY >= 2 |
|
|
2336 | ev_verify (EV_A); |
|
|
2337 | #endif |
|
|
2338 | |
1483 | #ifndef _WIN32 |
2339 | #ifndef _WIN32 |
1484 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2340 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1485 | if (expect_false (getpid () != curpid)) |
2341 | if (expect_false (getpid () != curpid)) |
1486 | { |
2342 | { |
1487 | curpid = getpid (); |
2343 | curpid = getpid (); |
… | |
… | |
1493 | /* we might have forked, so queue fork handlers */ |
2349 | /* we might have forked, so queue fork handlers */ |
1494 | if (expect_false (postfork)) |
2350 | if (expect_false (postfork)) |
1495 | if (forkcnt) |
2351 | if (forkcnt) |
1496 | { |
2352 | { |
1497 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2353 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1498 | call_pending (EV_A); |
2354 | EV_INVOKE_PENDING; |
1499 | } |
2355 | } |
1500 | #endif |
2356 | #endif |
1501 | |
2357 | |
|
|
2358 | #if EV_PREPARE_ENABLE |
1502 | /* queue prepare watchers (and execute them) */ |
2359 | /* queue prepare watchers (and execute them) */ |
1503 | if (expect_false (preparecnt)) |
2360 | if (expect_false (preparecnt)) |
1504 | { |
2361 | { |
1505 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2362 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1506 | call_pending (EV_A); |
2363 | EV_INVOKE_PENDING; |
1507 | } |
2364 | } |
|
|
2365 | #endif |
1508 | |
2366 | |
1509 | if (expect_false (!activecnt)) |
2367 | if (expect_false (loop_done)) |
1510 | break; |
2368 | break; |
1511 | |
2369 | |
1512 | /* we might have forked, so reify kernel state if necessary */ |
2370 | /* we might have forked, so reify kernel state if necessary */ |
1513 | if (expect_false (postfork)) |
2371 | if (expect_false (postfork)) |
1514 | loop_fork (EV_A); |
2372 | loop_fork (EV_A); |
… | |
… | |
1519 | /* calculate blocking time */ |
2377 | /* calculate blocking time */ |
1520 | { |
2378 | { |
1521 | ev_tstamp waittime = 0.; |
2379 | ev_tstamp waittime = 0.; |
1522 | ev_tstamp sleeptime = 0.; |
2380 | ev_tstamp sleeptime = 0.; |
1523 | |
2381 | |
|
|
2382 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2383 | ev_tstamp prev_mn_now = mn_now; |
|
|
2384 | |
|
|
2385 | /* update time to cancel out callback processing overhead */ |
|
|
2386 | time_update (EV_A_ 1e100); |
|
|
2387 | |
1524 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2388 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
1525 | { |
2389 | { |
1526 | /* update time to cancel out callback processing overhead */ |
|
|
1527 | time_update (EV_A_ 1e100); |
|
|
1528 | |
|
|
1529 | waittime = MAX_BLOCKTIME; |
2390 | waittime = MAX_BLOCKTIME; |
1530 | |
2391 | |
1531 | if (timercnt) |
2392 | if (timercnt) |
1532 | { |
2393 | { |
1533 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2394 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1534 | if (waittime > to) waittime = to; |
2395 | if (waittime > to) waittime = to; |
1535 | } |
2396 | } |
1536 | |
2397 | |
1537 | #if EV_PERIODIC_ENABLE |
2398 | #if EV_PERIODIC_ENABLE |
1538 | if (periodiccnt) |
2399 | if (periodiccnt) |
1539 | { |
2400 | { |
1540 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2401 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1541 | if (waittime > to) waittime = to; |
2402 | if (waittime > to) waittime = to; |
1542 | } |
2403 | } |
1543 | #endif |
2404 | #endif |
1544 | |
2405 | |
|
|
2406 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1545 | if (expect_false (waittime < timeout_blocktime)) |
2407 | if (expect_false (waittime < timeout_blocktime)) |
1546 | waittime = timeout_blocktime; |
2408 | waittime = timeout_blocktime; |
1547 | |
2409 | |
1548 | sleeptime = waittime - backend_fudge; |
2410 | /* extra check because io_blocktime is commonly 0 */ |
1549 | |
|
|
1550 | if (expect_true (sleeptime > io_blocktime)) |
2411 | if (expect_false (io_blocktime)) |
1551 | sleeptime = io_blocktime; |
|
|
1552 | |
|
|
1553 | if (sleeptime) |
|
|
1554 | { |
2412 | { |
|
|
2413 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2414 | |
|
|
2415 | if (sleeptime > waittime - backend_fudge) |
|
|
2416 | sleeptime = waittime - backend_fudge; |
|
|
2417 | |
|
|
2418 | if (expect_true (sleeptime > 0.)) |
|
|
2419 | { |
1555 | ev_sleep (sleeptime); |
2420 | ev_sleep (sleeptime); |
1556 | waittime -= sleeptime; |
2421 | waittime -= sleeptime; |
|
|
2422 | } |
1557 | } |
2423 | } |
1558 | } |
2424 | } |
1559 | |
2425 | |
|
|
2426 | #if EV_FEATURE_API |
1560 | ++loop_count; |
2427 | ++loop_count; |
|
|
2428 | #endif |
|
|
2429 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1561 | backend_poll (EV_A_ waittime); |
2430 | backend_poll (EV_A_ waittime); |
|
|
2431 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
1562 | |
2432 | |
1563 | /* update ev_rt_now, do magic */ |
2433 | /* update ev_rt_now, do magic */ |
1564 | time_update (EV_A_ waittime + sleeptime); |
2434 | time_update (EV_A_ waittime + sleeptime); |
1565 | } |
2435 | } |
1566 | |
2436 | |
… | |
… | |
1573 | #if EV_IDLE_ENABLE |
2443 | #if EV_IDLE_ENABLE |
1574 | /* queue idle watchers unless other events are pending */ |
2444 | /* queue idle watchers unless other events are pending */ |
1575 | idle_reify (EV_A); |
2445 | idle_reify (EV_A); |
1576 | #endif |
2446 | #endif |
1577 | |
2447 | |
|
|
2448 | #if EV_CHECK_ENABLE |
1578 | /* queue check watchers, to be executed first */ |
2449 | /* queue check watchers, to be executed first */ |
1579 | if (expect_false (checkcnt)) |
2450 | if (expect_false (checkcnt)) |
1580 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2451 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2452 | #endif |
1581 | |
2453 | |
1582 | call_pending (EV_A); |
2454 | EV_INVOKE_PENDING; |
1583 | |
|
|
1584 | } |
2455 | } |
1585 | while (expect_true (activecnt && !loop_done)); |
2456 | while (expect_true ( |
|
|
2457 | activecnt |
|
|
2458 | && !loop_done |
|
|
2459 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
|
|
2460 | )); |
1586 | |
2461 | |
1587 | if (loop_done == EVUNLOOP_ONE) |
2462 | if (loop_done == EVBREAK_ONE) |
1588 | loop_done = EVUNLOOP_CANCEL; |
2463 | loop_done = EVBREAK_CANCEL; |
1589 | } |
|
|
1590 | |
2464 | |
|
|
2465 | #if EV_FEATURE_API |
|
|
2466 | --loop_depth; |
|
|
2467 | #endif |
|
|
2468 | } |
|
|
2469 | |
1591 | void |
2470 | void |
1592 | ev_unloop (EV_P_ int how) |
2471 | ev_break (EV_P_ int how) |
1593 | { |
2472 | { |
1594 | loop_done = how; |
2473 | loop_done = how; |
1595 | } |
2474 | } |
1596 | |
2475 | |
|
|
2476 | void |
|
|
2477 | ev_ref (EV_P) |
|
|
2478 | { |
|
|
2479 | ++activecnt; |
|
|
2480 | } |
|
|
2481 | |
|
|
2482 | void |
|
|
2483 | ev_unref (EV_P) |
|
|
2484 | { |
|
|
2485 | --activecnt; |
|
|
2486 | } |
|
|
2487 | |
|
|
2488 | void |
|
|
2489 | ev_now_update (EV_P) |
|
|
2490 | { |
|
|
2491 | time_update (EV_A_ 1e100); |
|
|
2492 | } |
|
|
2493 | |
|
|
2494 | void |
|
|
2495 | ev_suspend (EV_P) |
|
|
2496 | { |
|
|
2497 | ev_now_update (EV_A); |
|
|
2498 | } |
|
|
2499 | |
|
|
2500 | void |
|
|
2501 | ev_resume (EV_P) |
|
|
2502 | { |
|
|
2503 | ev_tstamp mn_prev = mn_now; |
|
|
2504 | |
|
|
2505 | ev_now_update (EV_A); |
|
|
2506 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2507 | #if EV_PERIODIC_ENABLE |
|
|
2508 | /* TODO: really do this? */ |
|
|
2509 | periodics_reschedule (EV_A); |
|
|
2510 | #endif |
|
|
2511 | } |
|
|
2512 | |
1597 | /*****************************************************************************/ |
2513 | /*****************************************************************************/ |
|
|
2514 | /* singly-linked list management, used when the expected list length is short */ |
1598 | |
2515 | |
1599 | void inline_size |
2516 | inline_size void |
1600 | wlist_add (WL *head, WL elem) |
2517 | wlist_add (WL *head, WL elem) |
1601 | { |
2518 | { |
1602 | elem->next = *head; |
2519 | elem->next = *head; |
1603 | *head = elem; |
2520 | *head = elem; |
1604 | } |
2521 | } |
1605 | |
2522 | |
1606 | void inline_size |
2523 | inline_size void |
1607 | wlist_del (WL *head, WL elem) |
2524 | wlist_del (WL *head, WL elem) |
1608 | { |
2525 | { |
1609 | while (*head) |
2526 | while (*head) |
1610 | { |
2527 | { |
1611 | if (*head == elem) |
2528 | if (expect_true (*head == elem)) |
1612 | { |
2529 | { |
1613 | *head = elem->next; |
2530 | *head = elem->next; |
1614 | return; |
2531 | break; |
1615 | } |
2532 | } |
1616 | |
2533 | |
1617 | head = &(*head)->next; |
2534 | head = &(*head)->next; |
1618 | } |
2535 | } |
1619 | } |
2536 | } |
1620 | |
2537 | |
1621 | void inline_speed |
2538 | /* internal, faster, version of ev_clear_pending */ |
|
|
2539 | inline_speed void |
1622 | clear_pending (EV_P_ W w) |
2540 | clear_pending (EV_P_ W w) |
1623 | { |
2541 | { |
1624 | if (w->pending) |
2542 | if (w->pending) |
1625 | { |
2543 | { |
1626 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2544 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1627 | w->pending = 0; |
2545 | w->pending = 0; |
1628 | } |
2546 | } |
1629 | } |
2547 | } |
1630 | |
2548 | |
1631 | int |
2549 | int |
… | |
… | |
1635 | int pending = w_->pending; |
2553 | int pending = w_->pending; |
1636 | |
2554 | |
1637 | if (expect_true (pending)) |
2555 | if (expect_true (pending)) |
1638 | { |
2556 | { |
1639 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2557 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2558 | p->w = (W)&pending_w; |
1640 | w_->pending = 0; |
2559 | w_->pending = 0; |
1641 | p->w = 0; |
|
|
1642 | return p->events; |
2560 | return p->events; |
1643 | } |
2561 | } |
1644 | else |
2562 | else |
1645 | return 0; |
2563 | return 0; |
1646 | } |
2564 | } |
1647 | |
2565 | |
1648 | void inline_size |
2566 | inline_size void |
1649 | pri_adjust (EV_P_ W w) |
2567 | pri_adjust (EV_P_ W w) |
1650 | { |
2568 | { |
1651 | int pri = w->priority; |
2569 | int pri = ev_priority (w); |
1652 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2570 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1653 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2571 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1654 | w->priority = pri; |
2572 | ev_set_priority (w, pri); |
1655 | } |
2573 | } |
1656 | |
2574 | |
1657 | void inline_speed |
2575 | inline_speed void |
1658 | ev_start (EV_P_ W w, int active) |
2576 | ev_start (EV_P_ W w, int active) |
1659 | { |
2577 | { |
1660 | pri_adjust (EV_A_ w); |
2578 | pri_adjust (EV_A_ w); |
1661 | w->active = active; |
2579 | w->active = active; |
1662 | ev_ref (EV_A); |
2580 | ev_ref (EV_A); |
1663 | } |
2581 | } |
1664 | |
2582 | |
1665 | void inline_size |
2583 | inline_size void |
1666 | ev_stop (EV_P_ W w) |
2584 | ev_stop (EV_P_ W w) |
1667 | { |
2585 | { |
1668 | ev_unref (EV_A); |
2586 | ev_unref (EV_A); |
1669 | w->active = 0; |
2587 | w->active = 0; |
1670 | } |
2588 | } |
… | |
… | |
1677 | int fd = w->fd; |
2595 | int fd = w->fd; |
1678 | |
2596 | |
1679 | if (expect_false (ev_is_active (w))) |
2597 | if (expect_false (ev_is_active (w))) |
1680 | return; |
2598 | return; |
1681 | |
2599 | |
1682 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2600 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2601 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2602 | |
|
|
2603 | EV_FREQUENT_CHECK; |
1683 | |
2604 | |
1684 | ev_start (EV_A_ (W)w, 1); |
2605 | ev_start (EV_A_ (W)w, 1); |
1685 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2606 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1686 | wlist_add (&anfds[fd].head, (WL)w); |
2607 | wlist_add (&anfds[fd].head, (WL)w); |
1687 | |
2608 | |
1688 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2609 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1689 | w->events &= ~EV_IOFDSET; |
2610 | w->events &= ~EV__IOFDSET; |
|
|
2611 | |
|
|
2612 | EV_FREQUENT_CHECK; |
1690 | } |
2613 | } |
1691 | |
2614 | |
1692 | void noinline |
2615 | void noinline |
1693 | ev_io_stop (EV_P_ ev_io *w) |
2616 | ev_io_stop (EV_P_ ev_io *w) |
1694 | { |
2617 | { |
1695 | clear_pending (EV_A_ (W)w); |
2618 | clear_pending (EV_A_ (W)w); |
1696 | if (expect_false (!ev_is_active (w))) |
2619 | if (expect_false (!ev_is_active (w))) |
1697 | return; |
2620 | return; |
1698 | |
2621 | |
1699 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2622 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2623 | |
|
|
2624 | EV_FREQUENT_CHECK; |
1700 | |
2625 | |
1701 | wlist_del (&anfds[w->fd].head, (WL)w); |
2626 | wlist_del (&anfds[w->fd].head, (WL)w); |
1702 | ev_stop (EV_A_ (W)w); |
2627 | ev_stop (EV_A_ (W)w); |
1703 | |
2628 | |
1704 | fd_change (EV_A_ w->fd, 1); |
2629 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
|
|
2630 | |
|
|
2631 | EV_FREQUENT_CHECK; |
1705 | } |
2632 | } |
1706 | |
2633 | |
1707 | void noinline |
2634 | void noinline |
1708 | ev_timer_start (EV_P_ ev_timer *w) |
2635 | ev_timer_start (EV_P_ ev_timer *w) |
1709 | { |
2636 | { |
1710 | if (expect_false (ev_is_active (w))) |
2637 | if (expect_false (ev_is_active (w))) |
1711 | return; |
2638 | return; |
1712 | |
2639 | |
1713 | ((WT)w)->at += mn_now; |
2640 | ev_at (w) += mn_now; |
1714 | |
2641 | |
1715 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2642 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1716 | |
2643 | |
|
|
2644 | EV_FREQUENT_CHECK; |
|
|
2645 | |
|
|
2646 | ++timercnt; |
1717 | ev_start (EV_A_ (W)w, ++timercnt); |
2647 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1718 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2648 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1719 | timers [timercnt - 1] = (WT)w; |
2649 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1720 | upheap (timers, timercnt - 1); |
2650 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2651 | upheap (timers, ev_active (w)); |
1721 | |
2652 | |
|
|
2653 | EV_FREQUENT_CHECK; |
|
|
2654 | |
1722 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2655 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1723 | } |
2656 | } |
1724 | |
2657 | |
1725 | void noinline |
2658 | void noinline |
1726 | ev_timer_stop (EV_P_ ev_timer *w) |
2659 | ev_timer_stop (EV_P_ ev_timer *w) |
1727 | { |
2660 | { |
1728 | clear_pending (EV_A_ (W)w); |
2661 | clear_pending (EV_A_ (W)w); |
1729 | if (expect_false (!ev_is_active (w))) |
2662 | if (expect_false (!ev_is_active (w))) |
1730 | return; |
2663 | return; |
1731 | |
2664 | |
1732 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2665 | EV_FREQUENT_CHECK; |
1733 | |
2666 | |
1734 | { |
2667 | { |
1735 | int active = ((W)w)->active; |
2668 | int active = ev_active (w); |
1736 | |
2669 | |
|
|
2670 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2671 | |
|
|
2672 | --timercnt; |
|
|
2673 | |
1737 | if (expect_true (--active < --timercnt)) |
2674 | if (expect_true (active < timercnt + HEAP0)) |
1738 | { |
2675 | { |
1739 | timers [active] = timers [timercnt]; |
2676 | timers [active] = timers [timercnt + HEAP0]; |
1740 | adjustheap (timers, timercnt, active); |
2677 | adjustheap (timers, timercnt, active); |
1741 | } |
2678 | } |
1742 | } |
2679 | } |
1743 | |
2680 | |
1744 | ((WT)w)->at -= mn_now; |
2681 | ev_at (w) -= mn_now; |
1745 | |
2682 | |
1746 | ev_stop (EV_A_ (W)w); |
2683 | ev_stop (EV_A_ (W)w); |
|
|
2684 | |
|
|
2685 | EV_FREQUENT_CHECK; |
1747 | } |
2686 | } |
1748 | |
2687 | |
1749 | void noinline |
2688 | void noinline |
1750 | ev_timer_again (EV_P_ ev_timer *w) |
2689 | ev_timer_again (EV_P_ ev_timer *w) |
1751 | { |
2690 | { |
|
|
2691 | EV_FREQUENT_CHECK; |
|
|
2692 | |
1752 | if (ev_is_active (w)) |
2693 | if (ev_is_active (w)) |
1753 | { |
2694 | { |
1754 | if (w->repeat) |
2695 | if (w->repeat) |
1755 | { |
2696 | { |
1756 | ((WT)w)->at = mn_now + w->repeat; |
2697 | ev_at (w) = mn_now + w->repeat; |
|
|
2698 | ANHE_at_cache (timers [ev_active (w)]); |
1757 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2699 | adjustheap (timers, timercnt, ev_active (w)); |
1758 | } |
2700 | } |
1759 | else |
2701 | else |
1760 | ev_timer_stop (EV_A_ w); |
2702 | ev_timer_stop (EV_A_ w); |
1761 | } |
2703 | } |
1762 | else if (w->repeat) |
2704 | else if (w->repeat) |
1763 | { |
2705 | { |
1764 | w->at = w->repeat; |
2706 | ev_at (w) = w->repeat; |
1765 | ev_timer_start (EV_A_ w); |
2707 | ev_timer_start (EV_A_ w); |
1766 | } |
2708 | } |
|
|
2709 | |
|
|
2710 | EV_FREQUENT_CHECK; |
|
|
2711 | } |
|
|
2712 | |
|
|
2713 | ev_tstamp |
|
|
2714 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2715 | { |
|
|
2716 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1767 | } |
2717 | } |
1768 | |
2718 | |
1769 | #if EV_PERIODIC_ENABLE |
2719 | #if EV_PERIODIC_ENABLE |
1770 | void noinline |
2720 | void noinline |
1771 | ev_periodic_start (EV_P_ ev_periodic *w) |
2721 | ev_periodic_start (EV_P_ ev_periodic *w) |
1772 | { |
2722 | { |
1773 | if (expect_false (ev_is_active (w))) |
2723 | if (expect_false (ev_is_active (w))) |
1774 | return; |
2724 | return; |
1775 | |
2725 | |
1776 | if (w->reschedule_cb) |
2726 | if (w->reschedule_cb) |
1777 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2727 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1778 | else if (w->interval) |
2728 | else if (w->interval) |
1779 | { |
2729 | { |
1780 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2730 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1781 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2731 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1782 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2732 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1783 | } |
2733 | } |
1784 | else |
2734 | else |
1785 | ((WT)w)->at = w->offset; |
2735 | ev_at (w) = w->offset; |
1786 | |
2736 | |
|
|
2737 | EV_FREQUENT_CHECK; |
|
|
2738 | |
|
|
2739 | ++periodiccnt; |
1787 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2740 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1788 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2741 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1789 | periodics [periodiccnt - 1] = (WT)w; |
2742 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1790 | upheap (periodics, periodiccnt - 1); |
2743 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2744 | upheap (periodics, ev_active (w)); |
1791 | |
2745 | |
|
|
2746 | EV_FREQUENT_CHECK; |
|
|
2747 | |
1792 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2748 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1793 | } |
2749 | } |
1794 | |
2750 | |
1795 | void noinline |
2751 | void noinline |
1796 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2752 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1797 | { |
2753 | { |
1798 | clear_pending (EV_A_ (W)w); |
2754 | clear_pending (EV_A_ (W)w); |
1799 | if (expect_false (!ev_is_active (w))) |
2755 | if (expect_false (!ev_is_active (w))) |
1800 | return; |
2756 | return; |
1801 | |
2757 | |
1802 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2758 | EV_FREQUENT_CHECK; |
1803 | |
2759 | |
1804 | { |
2760 | { |
1805 | int active = ((W)w)->active; |
2761 | int active = ev_active (w); |
1806 | |
2762 | |
|
|
2763 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2764 | |
|
|
2765 | --periodiccnt; |
|
|
2766 | |
1807 | if (expect_true (--active < --periodiccnt)) |
2767 | if (expect_true (active < periodiccnt + HEAP0)) |
1808 | { |
2768 | { |
1809 | periodics [active] = periodics [periodiccnt]; |
2769 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1810 | adjustheap (periodics, periodiccnt, active); |
2770 | adjustheap (periodics, periodiccnt, active); |
1811 | } |
2771 | } |
1812 | } |
2772 | } |
1813 | |
2773 | |
1814 | ev_stop (EV_A_ (W)w); |
2774 | ev_stop (EV_A_ (W)w); |
|
|
2775 | |
|
|
2776 | EV_FREQUENT_CHECK; |
1815 | } |
2777 | } |
1816 | |
2778 | |
1817 | void noinline |
2779 | void noinline |
1818 | ev_periodic_again (EV_P_ ev_periodic *w) |
2780 | ev_periodic_again (EV_P_ ev_periodic *w) |
1819 | { |
2781 | { |
… | |
… | |
1825 | |
2787 | |
1826 | #ifndef SA_RESTART |
2788 | #ifndef SA_RESTART |
1827 | # define SA_RESTART 0 |
2789 | # define SA_RESTART 0 |
1828 | #endif |
2790 | #endif |
1829 | |
2791 | |
|
|
2792 | #if EV_SIGNAL_ENABLE |
|
|
2793 | |
1830 | void noinline |
2794 | void noinline |
1831 | ev_signal_start (EV_P_ ev_signal *w) |
2795 | ev_signal_start (EV_P_ ev_signal *w) |
1832 | { |
2796 | { |
1833 | #if EV_MULTIPLICITY |
|
|
1834 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1835 | #endif |
|
|
1836 | if (expect_false (ev_is_active (w))) |
2797 | if (expect_false (ev_is_active (w))) |
1837 | return; |
2798 | return; |
1838 | |
2799 | |
1839 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2800 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
1840 | |
2801 | |
|
|
2802 | #if EV_MULTIPLICITY |
|
|
2803 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2804 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
2805 | |
|
|
2806 | signals [w->signum - 1].loop = EV_A; |
|
|
2807 | #endif |
|
|
2808 | |
|
|
2809 | EV_FREQUENT_CHECK; |
|
|
2810 | |
|
|
2811 | #if EV_USE_SIGNALFD |
|
|
2812 | if (sigfd == -2) |
1841 | { |
2813 | { |
1842 | #ifndef _WIN32 |
2814 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
1843 | sigset_t full, prev; |
2815 | if (sigfd < 0 && errno == EINVAL) |
1844 | sigfillset (&full); |
2816 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
1845 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1846 | #endif |
|
|
1847 | |
2817 | |
1848 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2818 | if (sigfd >= 0) |
|
|
2819 | { |
|
|
2820 | fd_intern (sigfd); /* doing it twice will not hurt */ |
1849 | |
2821 | |
1850 | #ifndef _WIN32 |
2822 | sigemptyset (&sigfd_set); |
1851 | sigprocmask (SIG_SETMASK, &prev, 0); |
2823 | |
1852 | #endif |
2824 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2825 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2826 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2827 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2828 | } |
1853 | } |
2829 | } |
|
|
2830 | |
|
|
2831 | if (sigfd >= 0) |
|
|
2832 | { |
|
|
2833 | /* TODO: check .head */ |
|
|
2834 | sigaddset (&sigfd_set, w->signum); |
|
|
2835 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2836 | |
|
|
2837 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2838 | } |
|
|
2839 | #endif |
1854 | |
2840 | |
1855 | ev_start (EV_A_ (W)w, 1); |
2841 | ev_start (EV_A_ (W)w, 1); |
1856 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2842 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1857 | |
2843 | |
1858 | if (!((WL)w)->next) |
2844 | if (!((WL)w)->next) |
|
|
2845 | # if EV_USE_SIGNALFD |
|
|
2846 | if (sigfd < 0) /*TODO*/ |
|
|
2847 | # endif |
1859 | { |
2848 | { |
1860 | #if _WIN32 |
2849 | # ifdef _WIN32 |
|
|
2850 | evpipe_init (EV_A); |
|
|
2851 | |
1861 | signal (w->signum, sighandler); |
2852 | signal (w->signum, ev_sighandler); |
1862 | #else |
2853 | # else |
1863 | struct sigaction sa; |
2854 | struct sigaction sa; |
|
|
2855 | |
|
|
2856 | evpipe_init (EV_A); |
|
|
2857 | |
1864 | sa.sa_handler = sighandler; |
2858 | sa.sa_handler = ev_sighandler; |
1865 | sigfillset (&sa.sa_mask); |
2859 | sigfillset (&sa.sa_mask); |
1866 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2860 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1867 | sigaction (w->signum, &sa, 0); |
2861 | sigaction (w->signum, &sa, 0); |
|
|
2862 | |
|
|
2863 | sigemptyset (&sa.sa_mask); |
|
|
2864 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2865 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
1868 | #endif |
2866 | #endif |
1869 | } |
2867 | } |
|
|
2868 | |
|
|
2869 | EV_FREQUENT_CHECK; |
1870 | } |
2870 | } |
1871 | |
2871 | |
1872 | void noinline |
2872 | void noinline |
1873 | ev_signal_stop (EV_P_ ev_signal *w) |
2873 | ev_signal_stop (EV_P_ ev_signal *w) |
1874 | { |
2874 | { |
1875 | clear_pending (EV_A_ (W)w); |
2875 | clear_pending (EV_A_ (W)w); |
1876 | if (expect_false (!ev_is_active (w))) |
2876 | if (expect_false (!ev_is_active (w))) |
1877 | return; |
2877 | return; |
1878 | |
2878 | |
|
|
2879 | EV_FREQUENT_CHECK; |
|
|
2880 | |
1879 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2881 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1880 | ev_stop (EV_A_ (W)w); |
2882 | ev_stop (EV_A_ (W)w); |
1881 | |
2883 | |
1882 | if (!signals [w->signum - 1].head) |
2884 | if (!signals [w->signum - 1].head) |
|
|
2885 | { |
|
|
2886 | #if EV_MULTIPLICITY |
|
|
2887 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2888 | #endif |
|
|
2889 | #if EV_USE_SIGNALFD |
|
|
2890 | if (sigfd >= 0) |
|
|
2891 | { |
|
|
2892 | sigset_t ss; |
|
|
2893 | |
|
|
2894 | sigemptyset (&ss); |
|
|
2895 | sigaddset (&ss, w->signum); |
|
|
2896 | sigdelset (&sigfd_set, w->signum); |
|
|
2897 | |
|
|
2898 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2899 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2900 | } |
|
|
2901 | else |
|
|
2902 | #endif |
1883 | signal (w->signum, SIG_DFL); |
2903 | signal (w->signum, SIG_DFL); |
|
|
2904 | } |
|
|
2905 | |
|
|
2906 | EV_FREQUENT_CHECK; |
1884 | } |
2907 | } |
|
|
2908 | |
|
|
2909 | #endif |
|
|
2910 | |
|
|
2911 | #if EV_CHILD_ENABLE |
1885 | |
2912 | |
1886 | void |
2913 | void |
1887 | ev_child_start (EV_P_ ev_child *w) |
2914 | ev_child_start (EV_P_ ev_child *w) |
1888 | { |
2915 | { |
1889 | #if EV_MULTIPLICITY |
2916 | #if EV_MULTIPLICITY |
1890 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2917 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1891 | #endif |
2918 | #endif |
1892 | if (expect_false (ev_is_active (w))) |
2919 | if (expect_false (ev_is_active (w))) |
1893 | return; |
2920 | return; |
1894 | |
2921 | |
|
|
2922 | EV_FREQUENT_CHECK; |
|
|
2923 | |
1895 | ev_start (EV_A_ (W)w, 1); |
2924 | ev_start (EV_A_ (W)w, 1); |
1896 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2925 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
2926 | |
|
|
2927 | EV_FREQUENT_CHECK; |
1897 | } |
2928 | } |
1898 | |
2929 | |
1899 | void |
2930 | void |
1900 | ev_child_stop (EV_P_ ev_child *w) |
2931 | ev_child_stop (EV_P_ ev_child *w) |
1901 | { |
2932 | { |
1902 | clear_pending (EV_A_ (W)w); |
2933 | clear_pending (EV_A_ (W)w); |
1903 | if (expect_false (!ev_is_active (w))) |
2934 | if (expect_false (!ev_is_active (w))) |
1904 | return; |
2935 | return; |
1905 | |
2936 | |
|
|
2937 | EV_FREQUENT_CHECK; |
|
|
2938 | |
1906 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2939 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
1907 | ev_stop (EV_A_ (W)w); |
2940 | ev_stop (EV_A_ (W)w); |
|
|
2941 | |
|
|
2942 | EV_FREQUENT_CHECK; |
1908 | } |
2943 | } |
|
|
2944 | |
|
|
2945 | #endif |
1909 | |
2946 | |
1910 | #if EV_STAT_ENABLE |
2947 | #if EV_STAT_ENABLE |
1911 | |
2948 | |
1912 | # ifdef _WIN32 |
2949 | # ifdef _WIN32 |
1913 | # undef lstat |
2950 | # undef lstat |
1914 | # define lstat(a,b) _stati64 (a,b) |
2951 | # define lstat(a,b) _stati64 (a,b) |
1915 | # endif |
2952 | # endif |
1916 | |
2953 | |
1917 | #define DEF_STAT_INTERVAL 5.0074891 |
2954 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2955 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1918 | #define MIN_STAT_INTERVAL 0.1074891 |
2956 | #define MIN_STAT_INTERVAL 0.1074891 |
1919 | |
2957 | |
1920 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2958 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1921 | |
2959 | |
1922 | #if EV_USE_INOTIFY |
2960 | #if EV_USE_INOTIFY |
1923 | # define EV_INOTIFY_BUFSIZE 8192 |
2961 | |
|
|
2962 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2963 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
1924 | |
2964 | |
1925 | static void noinline |
2965 | static void noinline |
1926 | infy_add (EV_P_ ev_stat *w) |
2966 | infy_add (EV_P_ ev_stat *w) |
1927 | { |
2967 | { |
1928 | 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); |
2968 | 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); |
1929 | |
2969 | |
1930 | if (w->wd < 0) |
2970 | if (w->wd >= 0) |
|
|
2971 | { |
|
|
2972 | struct statfs sfs; |
|
|
2973 | |
|
|
2974 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2975 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2976 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2977 | |
|
|
2978 | if (!fs_2625) |
|
|
2979 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2980 | else if (!statfs (w->path, &sfs) |
|
|
2981 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2982 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2983 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2984 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2985 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2986 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2987 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2988 | else |
|
|
2989 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
1931 | { |
2990 | } |
1932 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2991 | else |
|
|
2992 | { |
|
|
2993 | /* can't use inotify, continue to stat */ |
|
|
2994 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1933 | |
2995 | |
1934 | /* monitor some parent directory for speedup hints */ |
2996 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
2997 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2998 | /* but an efficiency issue only */ |
1935 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2999 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1936 | { |
3000 | { |
1937 | char path [4096]; |
3001 | char path [4096]; |
1938 | strcpy (path, w->path); |
3002 | strcpy (path, w->path); |
1939 | |
3003 | |
… | |
… | |
1942 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3006 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1943 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3007 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1944 | |
3008 | |
1945 | char *pend = strrchr (path, '/'); |
3009 | char *pend = strrchr (path, '/'); |
1946 | |
3010 | |
1947 | if (!pend) |
3011 | if (!pend || pend == path) |
1948 | break; /* whoops, no '/', complain to your admin */ |
3012 | break; |
1949 | |
3013 | |
1950 | *pend = 0; |
3014 | *pend = 0; |
1951 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3015 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1952 | } |
3016 | } |
1953 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3017 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1954 | } |
3018 | } |
1955 | } |
3019 | } |
1956 | else |
|
|
1957 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1958 | |
3020 | |
1959 | if (w->wd >= 0) |
3021 | if (w->wd >= 0) |
1960 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3022 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3023 | |
|
|
3024 | /* now re-arm timer, if required */ |
|
|
3025 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3026 | ev_timer_again (EV_A_ &w->timer); |
|
|
3027 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
1961 | } |
3028 | } |
1962 | |
3029 | |
1963 | static void noinline |
3030 | static void noinline |
1964 | infy_del (EV_P_ ev_stat *w) |
3031 | infy_del (EV_P_ ev_stat *w) |
1965 | { |
3032 | { |
… | |
… | |
1968 | |
3035 | |
1969 | if (wd < 0) |
3036 | if (wd < 0) |
1970 | return; |
3037 | return; |
1971 | |
3038 | |
1972 | w->wd = -2; |
3039 | w->wd = -2; |
1973 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3040 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
1974 | wlist_del (&fs_hash [slot].head, (WL)w); |
3041 | wlist_del (&fs_hash [slot].head, (WL)w); |
1975 | |
3042 | |
1976 | /* remove this watcher, if others are watching it, they will rearm */ |
3043 | /* remove this watcher, if others are watching it, they will rearm */ |
1977 | inotify_rm_watch (fs_fd, wd); |
3044 | inotify_rm_watch (fs_fd, wd); |
1978 | } |
3045 | } |
1979 | |
3046 | |
1980 | static void noinline |
3047 | static void noinline |
1981 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3048 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1982 | { |
3049 | { |
1983 | if (slot < 0) |
3050 | if (slot < 0) |
1984 | /* overflow, need to check for all hahs slots */ |
3051 | /* overflow, need to check for all hash slots */ |
1985 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3052 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
1986 | infy_wd (EV_A_ slot, wd, ev); |
3053 | infy_wd (EV_A_ slot, wd, ev); |
1987 | else |
3054 | else |
1988 | { |
3055 | { |
1989 | WL w_; |
3056 | WL w_; |
1990 | |
3057 | |
1991 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3058 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
1992 | { |
3059 | { |
1993 | ev_stat *w = (ev_stat *)w_; |
3060 | ev_stat *w = (ev_stat *)w_; |
1994 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3061 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
1995 | |
3062 | |
1996 | if (w->wd == wd || wd == -1) |
3063 | if (w->wd == wd || wd == -1) |
1997 | { |
3064 | { |
1998 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3065 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
1999 | { |
3066 | { |
|
|
3067 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2000 | w->wd = -1; |
3068 | w->wd = -1; |
2001 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3069 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2002 | } |
3070 | } |
2003 | |
3071 | |
2004 | stat_timer_cb (EV_A_ &w->timer, 0); |
3072 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2009 | |
3077 | |
2010 | static void |
3078 | static void |
2011 | infy_cb (EV_P_ ev_io *w, int revents) |
3079 | infy_cb (EV_P_ ev_io *w, int revents) |
2012 | { |
3080 | { |
2013 | char buf [EV_INOTIFY_BUFSIZE]; |
3081 | char buf [EV_INOTIFY_BUFSIZE]; |
2014 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2015 | int ofs; |
3082 | int ofs; |
2016 | int len = read (fs_fd, buf, sizeof (buf)); |
3083 | int len = read (fs_fd, buf, sizeof (buf)); |
2017 | |
3084 | |
2018 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3085 | for (ofs = 0; ofs < len; ) |
|
|
3086 | { |
|
|
3087 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2019 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3088 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3089 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3090 | } |
2020 | } |
3091 | } |
2021 | |
3092 | |
2022 | void inline_size |
3093 | inline_size void |
|
|
3094 | ev_check_2625 (EV_P) |
|
|
3095 | { |
|
|
3096 | /* kernels < 2.6.25 are borked |
|
|
3097 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3098 | */ |
|
|
3099 | if (ev_linux_version () < 0x020619) |
|
|
3100 | return; |
|
|
3101 | |
|
|
3102 | fs_2625 = 1; |
|
|
3103 | } |
|
|
3104 | |
|
|
3105 | inline_size int |
|
|
3106 | infy_newfd (void) |
|
|
3107 | { |
|
|
3108 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3109 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3110 | if (fd >= 0) |
|
|
3111 | return fd; |
|
|
3112 | #endif |
|
|
3113 | return inotify_init (); |
|
|
3114 | } |
|
|
3115 | |
|
|
3116 | inline_size void |
2023 | infy_init (EV_P) |
3117 | infy_init (EV_P) |
2024 | { |
3118 | { |
2025 | if (fs_fd != -2) |
3119 | if (fs_fd != -2) |
2026 | return; |
3120 | return; |
2027 | |
3121 | |
|
|
3122 | fs_fd = -1; |
|
|
3123 | |
|
|
3124 | ev_check_2625 (EV_A); |
|
|
3125 | |
2028 | fs_fd = inotify_init (); |
3126 | fs_fd = infy_newfd (); |
2029 | |
3127 | |
2030 | if (fs_fd >= 0) |
3128 | if (fs_fd >= 0) |
2031 | { |
3129 | { |
|
|
3130 | fd_intern (fs_fd); |
2032 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3131 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2033 | ev_set_priority (&fs_w, EV_MAXPRI); |
3132 | ev_set_priority (&fs_w, EV_MAXPRI); |
2034 | ev_io_start (EV_A_ &fs_w); |
3133 | ev_io_start (EV_A_ &fs_w); |
|
|
3134 | ev_unref (EV_A); |
2035 | } |
3135 | } |
2036 | } |
3136 | } |
2037 | |
3137 | |
2038 | void inline_size |
3138 | inline_size void |
2039 | infy_fork (EV_P) |
3139 | infy_fork (EV_P) |
2040 | { |
3140 | { |
2041 | int slot; |
3141 | int slot; |
2042 | |
3142 | |
2043 | if (fs_fd < 0) |
3143 | if (fs_fd < 0) |
2044 | return; |
3144 | return; |
2045 | |
3145 | |
|
|
3146 | ev_ref (EV_A); |
|
|
3147 | ev_io_stop (EV_A_ &fs_w); |
2046 | close (fs_fd); |
3148 | close (fs_fd); |
2047 | fs_fd = inotify_init (); |
3149 | fs_fd = infy_newfd (); |
2048 | |
3150 | |
|
|
3151 | if (fs_fd >= 0) |
|
|
3152 | { |
|
|
3153 | fd_intern (fs_fd); |
|
|
3154 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3155 | ev_io_start (EV_A_ &fs_w); |
|
|
3156 | ev_unref (EV_A); |
|
|
3157 | } |
|
|
3158 | |
2049 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3159 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2050 | { |
3160 | { |
2051 | WL w_ = fs_hash [slot].head; |
3161 | WL w_ = fs_hash [slot].head; |
2052 | fs_hash [slot].head = 0; |
3162 | fs_hash [slot].head = 0; |
2053 | |
3163 | |
2054 | while (w_) |
3164 | while (w_) |
… | |
… | |
2059 | w->wd = -1; |
3169 | w->wd = -1; |
2060 | |
3170 | |
2061 | if (fs_fd >= 0) |
3171 | if (fs_fd >= 0) |
2062 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3172 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2063 | else |
3173 | else |
|
|
3174 | { |
|
|
3175 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3176 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2064 | ev_timer_start (EV_A_ &w->timer); |
3177 | ev_timer_again (EV_A_ &w->timer); |
|
|
3178 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3179 | } |
2065 | } |
3180 | } |
2066 | |
|
|
2067 | } |
3181 | } |
2068 | } |
3182 | } |
2069 | |
3183 | |
|
|
3184 | #endif |
|
|
3185 | |
|
|
3186 | #ifdef _WIN32 |
|
|
3187 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3188 | #else |
|
|
3189 | # define EV_LSTAT(p,b) lstat (p, b) |
2070 | #endif |
3190 | #endif |
2071 | |
3191 | |
2072 | void |
3192 | void |
2073 | ev_stat_stat (EV_P_ ev_stat *w) |
3193 | ev_stat_stat (EV_P_ ev_stat *w) |
2074 | { |
3194 | { |
… | |
… | |
2081 | static void noinline |
3201 | static void noinline |
2082 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3202 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2083 | { |
3203 | { |
2084 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3204 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2085 | |
3205 | |
2086 | /* we copy this here each the time so that */ |
3206 | ev_statdata prev = w->attr; |
2087 | /* prev has the old value when the callback gets invoked */ |
|
|
2088 | w->prev = w->attr; |
|
|
2089 | ev_stat_stat (EV_A_ w); |
3207 | ev_stat_stat (EV_A_ w); |
2090 | |
3208 | |
2091 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3209 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2092 | if ( |
3210 | if ( |
2093 | w->prev.st_dev != w->attr.st_dev |
3211 | prev.st_dev != w->attr.st_dev |
2094 | || w->prev.st_ino != w->attr.st_ino |
3212 | || prev.st_ino != w->attr.st_ino |
2095 | || w->prev.st_mode != w->attr.st_mode |
3213 | || prev.st_mode != w->attr.st_mode |
2096 | || w->prev.st_nlink != w->attr.st_nlink |
3214 | || prev.st_nlink != w->attr.st_nlink |
2097 | || w->prev.st_uid != w->attr.st_uid |
3215 | || prev.st_uid != w->attr.st_uid |
2098 | || w->prev.st_gid != w->attr.st_gid |
3216 | || prev.st_gid != w->attr.st_gid |
2099 | || w->prev.st_rdev != w->attr.st_rdev |
3217 | || prev.st_rdev != w->attr.st_rdev |
2100 | || w->prev.st_size != w->attr.st_size |
3218 | || prev.st_size != w->attr.st_size |
2101 | || w->prev.st_atime != w->attr.st_atime |
3219 | || prev.st_atime != w->attr.st_atime |
2102 | || w->prev.st_mtime != w->attr.st_mtime |
3220 | || prev.st_mtime != w->attr.st_mtime |
2103 | || w->prev.st_ctime != w->attr.st_ctime |
3221 | || prev.st_ctime != w->attr.st_ctime |
2104 | ) { |
3222 | ) { |
|
|
3223 | /* we only update w->prev on actual differences */ |
|
|
3224 | /* in case we test more often than invoke the callback, */ |
|
|
3225 | /* to ensure that prev is always different to attr */ |
|
|
3226 | w->prev = prev; |
|
|
3227 | |
2105 | #if EV_USE_INOTIFY |
3228 | #if EV_USE_INOTIFY |
|
|
3229 | if (fs_fd >= 0) |
|
|
3230 | { |
2106 | infy_del (EV_A_ w); |
3231 | infy_del (EV_A_ w); |
2107 | infy_add (EV_A_ w); |
3232 | infy_add (EV_A_ w); |
2108 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3233 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3234 | } |
2109 | #endif |
3235 | #endif |
2110 | |
3236 | |
2111 | ev_feed_event (EV_A_ w, EV_STAT); |
3237 | ev_feed_event (EV_A_ w, EV_STAT); |
2112 | } |
3238 | } |
2113 | } |
3239 | } |
… | |
… | |
2116 | ev_stat_start (EV_P_ ev_stat *w) |
3242 | ev_stat_start (EV_P_ ev_stat *w) |
2117 | { |
3243 | { |
2118 | if (expect_false (ev_is_active (w))) |
3244 | if (expect_false (ev_is_active (w))) |
2119 | return; |
3245 | return; |
2120 | |
3246 | |
2121 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2122 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2123 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2124 | |
|
|
2125 | ev_stat_stat (EV_A_ w); |
3247 | ev_stat_stat (EV_A_ w); |
2126 | |
3248 | |
|
|
3249 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2127 | if (w->interval < MIN_STAT_INTERVAL) |
3250 | w->interval = MIN_STAT_INTERVAL; |
2128 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2129 | |
3251 | |
2130 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3252 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2131 | ev_set_priority (&w->timer, ev_priority (w)); |
3253 | ev_set_priority (&w->timer, ev_priority (w)); |
2132 | |
3254 | |
2133 | #if EV_USE_INOTIFY |
3255 | #if EV_USE_INOTIFY |
2134 | infy_init (EV_A); |
3256 | infy_init (EV_A); |
2135 | |
3257 | |
2136 | if (fs_fd >= 0) |
3258 | if (fs_fd >= 0) |
2137 | infy_add (EV_A_ w); |
3259 | infy_add (EV_A_ w); |
2138 | else |
3260 | else |
2139 | #endif |
3261 | #endif |
|
|
3262 | { |
2140 | ev_timer_start (EV_A_ &w->timer); |
3263 | ev_timer_again (EV_A_ &w->timer); |
|
|
3264 | ev_unref (EV_A); |
|
|
3265 | } |
2141 | |
3266 | |
2142 | ev_start (EV_A_ (W)w, 1); |
3267 | ev_start (EV_A_ (W)w, 1); |
|
|
3268 | |
|
|
3269 | EV_FREQUENT_CHECK; |
2143 | } |
3270 | } |
2144 | |
3271 | |
2145 | void |
3272 | void |
2146 | ev_stat_stop (EV_P_ ev_stat *w) |
3273 | ev_stat_stop (EV_P_ ev_stat *w) |
2147 | { |
3274 | { |
2148 | clear_pending (EV_A_ (W)w); |
3275 | clear_pending (EV_A_ (W)w); |
2149 | if (expect_false (!ev_is_active (w))) |
3276 | if (expect_false (!ev_is_active (w))) |
2150 | return; |
3277 | return; |
2151 | |
3278 | |
|
|
3279 | EV_FREQUENT_CHECK; |
|
|
3280 | |
2152 | #if EV_USE_INOTIFY |
3281 | #if EV_USE_INOTIFY |
2153 | infy_del (EV_A_ w); |
3282 | infy_del (EV_A_ w); |
2154 | #endif |
3283 | #endif |
|
|
3284 | |
|
|
3285 | if (ev_is_active (&w->timer)) |
|
|
3286 | { |
|
|
3287 | ev_ref (EV_A); |
2155 | ev_timer_stop (EV_A_ &w->timer); |
3288 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3289 | } |
2156 | |
3290 | |
2157 | ev_stop (EV_A_ (W)w); |
3291 | ev_stop (EV_A_ (W)w); |
|
|
3292 | |
|
|
3293 | EV_FREQUENT_CHECK; |
2158 | } |
3294 | } |
2159 | #endif |
3295 | #endif |
2160 | |
3296 | |
2161 | #if EV_IDLE_ENABLE |
3297 | #if EV_IDLE_ENABLE |
2162 | void |
3298 | void |
… | |
… | |
2164 | { |
3300 | { |
2165 | if (expect_false (ev_is_active (w))) |
3301 | if (expect_false (ev_is_active (w))) |
2166 | return; |
3302 | return; |
2167 | |
3303 | |
2168 | pri_adjust (EV_A_ (W)w); |
3304 | pri_adjust (EV_A_ (W)w); |
|
|
3305 | |
|
|
3306 | EV_FREQUENT_CHECK; |
2169 | |
3307 | |
2170 | { |
3308 | { |
2171 | int active = ++idlecnt [ABSPRI (w)]; |
3309 | int active = ++idlecnt [ABSPRI (w)]; |
2172 | |
3310 | |
2173 | ++idleall; |
3311 | ++idleall; |
2174 | ev_start (EV_A_ (W)w, active); |
3312 | ev_start (EV_A_ (W)w, active); |
2175 | |
3313 | |
2176 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3314 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2177 | idles [ABSPRI (w)][active - 1] = w; |
3315 | idles [ABSPRI (w)][active - 1] = w; |
2178 | } |
3316 | } |
|
|
3317 | |
|
|
3318 | EV_FREQUENT_CHECK; |
2179 | } |
3319 | } |
2180 | |
3320 | |
2181 | void |
3321 | void |
2182 | ev_idle_stop (EV_P_ ev_idle *w) |
3322 | ev_idle_stop (EV_P_ ev_idle *w) |
2183 | { |
3323 | { |
2184 | clear_pending (EV_A_ (W)w); |
3324 | clear_pending (EV_A_ (W)w); |
2185 | if (expect_false (!ev_is_active (w))) |
3325 | if (expect_false (!ev_is_active (w))) |
2186 | return; |
3326 | return; |
2187 | |
3327 | |
|
|
3328 | EV_FREQUENT_CHECK; |
|
|
3329 | |
2188 | { |
3330 | { |
2189 | int active = ((W)w)->active; |
3331 | int active = ev_active (w); |
2190 | |
3332 | |
2191 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3333 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2192 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3334 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2193 | |
3335 | |
2194 | ev_stop (EV_A_ (W)w); |
3336 | ev_stop (EV_A_ (W)w); |
2195 | --idleall; |
3337 | --idleall; |
2196 | } |
3338 | } |
2197 | } |
|
|
2198 | #endif |
|
|
2199 | |
3339 | |
|
|
3340 | EV_FREQUENT_CHECK; |
|
|
3341 | } |
|
|
3342 | #endif |
|
|
3343 | |
|
|
3344 | #if EV_PREPARE_ENABLE |
2200 | void |
3345 | void |
2201 | ev_prepare_start (EV_P_ ev_prepare *w) |
3346 | ev_prepare_start (EV_P_ ev_prepare *w) |
2202 | { |
3347 | { |
2203 | if (expect_false (ev_is_active (w))) |
3348 | if (expect_false (ev_is_active (w))) |
2204 | return; |
3349 | return; |
|
|
3350 | |
|
|
3351 | EV_FREQUENT_CHECK; |
2205 | |
3352 | |
2206 | ev_start (EV_A_ (W)w, ++preparecnt); |
3353 | ev_start (EV_A_ (W)w, ++preparecnt); |
2207 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3354 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2208 | prepares [preparecnt - 1] = w; |
3355 | prepares [preparecnt - 1] = w; |
|
|
3356 | |
|
|
3357 | EV_FREQUENT_CHECK; |
2209 | } |
3358 | } |
2210 | |
3359 | |
2211 | void |
3360 | void |
2212 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3361 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2213 | { |
3362 | { |
2214 | clear_pending (EV_A_ (W)w); |
3363 | clear_pending (EV_A_ (W)w); |
2215 | if (expect_false (!ev_is_active (w))) |
3364 | if (expect_false (!ev_is_active (w))) |
2216 | return; |
3365 | return; |
2217 | |
3366 | |
|
|
3367 | EV_FREQUENT_CHECK; |
|
|
3368 | |
2218 | { |
3369 | { |
2219 | int active = ((W)w)->active; |
3370 | int active = ev_active (w); |
|
|
3371 | |
2220 | prepares [active - 1] = prepares [--preparecnt]; |
3372 | prepares [active - 1] = prepares [--preparecnt]; |
2221 | ((W)prepares [active - 1])->active = active; |
3373 | ev_active (prepares [active - 1]) = active; |
2222 | } |
3374 | } |
2223 | |
3375 | |
2224 | ev_stop (EV_A_ (W)w); |
3376 | ev_stop (EV_A_ (W)w); |
2225 | } |
|
|
2226 | |
3377 | |
|
|
3378 | EV_FREQUENT_CHECK; |
|
|
3379 | } |
|
|
3380 | #endif |
|
|
3381 | |
|
|
3382 | #if EV_CHECK_ENABLE |
2227 | void |
3383 | void |
2228 | ev_check_start (EV_P_ ev_check *w) |
3384 | ev_check_start (EV_P_ ev_check *w) |
2229 | { |
3385 | { |
2230 | if (expect_false (ev_is_active (w))) |
3386 | if (expect_false (ev_is_active (w))) |
2231 | return; |
3387 | return; |
|
|
3388 | |
|
|
3389 | EV_FREQUENT_CHECK; |
2232 | |
3390 | |
2233 | ev_start (EV_A_ (W)w, ++checkcnt); |
3391 | ev_start (EV_A_ (W)w, ++checkcnt); |
2234 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3392 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2235 | checks [checkcnt - 1] = w; |
3393 | checks [checkcnt - 1] = w; |
|
|
3394 | |
|
|
3395 | EV_FREQUENT_CHECK; |
2236 | } |
3396 | } |
2237 | |
3397 | |
2238 | void |
3398 | void |
2239 | ev_check_stop (EV_P_ ev_check *w) |
3399 | ev_check_stop (EV_P_ ev_check *w) |
2240 | { |
3400 | { |
2241 | clear_pending (EV_A_ (W)w); |
3401 | clear_pending (EV_A_ (W)w); |
2242 | if (expect_false (!ev_is_active (w))) |
3402 | if (expect_false (!ev_is_active (w))) |
2243 | return; |
3403 | return; |
2244 | |
3404 | |
|
|
3405 | EV_FREQUENT_CHECK; |
|
|
3406 | |
2245 | { |
3407 | { |
2246 | int active = ((W)w)->active; |
3408 | int active = ev_active (w); |
|
|
3409 | |
2247 | checks [active - 1] = checks [--checkcnt]; |
3410 | checks [active - 1] = checks [--checkcnt]; |
2248 | ((W)checks [active - 1])->active = active; |
3411 | ev_active (checks [active - 1]) = active; |
2249 | } |
3412 | } |
2250 | |
3413 | |
2251 | ev_stop (EV_A_ (W)w); |
3414 | ev_stop (EV_A_ (W)w); |
|
|
3415 | |
|
|
3416 | EV_FREQUENT_CHECK; |
2252 | } |
3417 | } |
|
|
3418 | #endif |
2253 | |
3419 | |
2254 | #if EV_EMBED_ENABLE |
3420 | #if EV_EMBED_ENABLE |
2255 | void noinline |
3421 | void noinline |
2256 | ev_embed_sweep (EV_P_ ev_embed *w) |
3422 | ev_embed_sweep (EV_P_ ev_embed *w) |
2257 | { |
3423 | { |
2258 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3424 | ev_run (w->other, EVRUN_NOWAIT); |
2259 | } |
3425 | } |
2260 | |
3426 | |
2261 | static void |
3427 | static void |
2262 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3428 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2263 | { |
3429 | { |
2264 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3430 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2265 | |
3431 | |
2266 | if (ev_cb (w)) |
3432 | if (ev_cb (w)) |
2267 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3433 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2268 | else |
3434 | else |
2269 | ev_embed_sweep (loop, w); |
3435 | ev_run (w->other, EVRUN_NOWAIT); |
2270 | } |
3436 | } |
2271 | |
3437 | |
2272 | static void |
3438 | static void |
2273 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3439 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2274 | { |
3440 | { |
2275 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3441 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2276 | |
3442 | |
2277 | fd_reify (w->other); |
3443 | { |
|
|
3444 | EV_P = w->other; |
|
|
3445 | |
|
|
3446 | while (fdchangecnt) |
|
|
3447 | { |
|
|
3448 | fd_reify (EV_A); |
|
|
3449 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3450 | } |
|
|
3451 | } |
2278 | } |
3452 | } |
|
|
3453 | |
|
|
3454 | static void |
|
|
3455 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3456 | { |
|
|
3457 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3458 | |
|
|
3459 | ev_embed_stop (EV_A_ w); |
|
|
3460 | |
|
|
3461 | { |
|
|
3462 | EV_P = w->other; |
|
|
3463 | |
|
|
3464 | ev_loop_fork (EV_A); |
|
|
3465 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3466 | } |
|
|
3467 | |
|
|
3468 | ev_embed_start (EV_A_ w); |
|
|
3469 | } |
|
|
3470 | |
|
|
3471 | #if 0 |
|
|
3472 | static void |
|
|
3473 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
3474 | { |
|
|
3475 | ev_idle_stop (EV_A_ idle); |
|
|
3476 | } |
|
|
3477 | #endif |
2279 | |
3478 | |
2280 | void |
3479 | void |
2281 | ev_embed_start (EV_P_ ev_embed *w) |
3480 | ev_embed_start (EV_P_ ev_embed *w) |
2282 | { |
3481 | { |
2283 | if (expect_false (ev_is_active (w))) |
3482 | if (expect_false (ev_is_active (w))) |
2284 | return; |
3483 | return; |
2285 | |
3484 | |
2286 | { |
3485 | { |
2287 | struct ev_loop *loop = w->other; |
3486 | EV_P = w->other; |
2288 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3487 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2289 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3488 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2290 | } |
3489 | } |
|
|
3490 | |
|
|
3491 | EV_FREQUENT_CHECK; |
2291 | |
3492 | |
2292 | ev_set_priority (&w->io, ev_priority (w)); |
3493 | ev_set_priority (&w->io, ev_priority (w)); |
2293 | ev_io_start (EV_A_ &w->io); |
3494 | ev_io_start (EV_A_ &w->io); |
2294 | |
3495 | |
2295 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3496 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2296 | ev_set_priority (&w->prepare, EV_MINPRI); |
3497 | ev_set_priority (&w->prepare, EV_MINPRI); |
2297 | ev_prepare_start (EV_A_ &w->prepare); |
3498 | ev_prepare_start (EV_A_ &w->prepare); |
2298 | |
3499 | |
|
|
3500 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3501 | ev_fork_start (EV_A_ &w->fork); |
|
|
3502 | |
|
|
3503 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
3504 | |
2299 | ev_start (EV_A_ (W)w, 1); |
3505 | ev_start (EV_A_ (W)w, 1); |
|
|
3506 | |
|
|
3507 | EV_FREQUENT_CHECK; |
2300 | } |
3508 | } |
2301 | |
3509 | |
2302 | void |
3510 | void |
2303 | ev_embed_stop (EV_P_ ev_embed *w) |
3511 | ev_embed_stop (EV_P_ ev_embed *w) |
2304 | { |
3512 | { |
2305 | clear_pending (EV_A_ (W)w); |
3513 | clear_pending (EV_A_ (W)w); |
2306 | if (expect_false (!ev_is_active (w))) |
3514 | if (expect_false (!ev_is_active (w))) |
2307 | return; |
3515 | return; |
2308 | |
3516 | |
|
|
3517 | EV_FREQUENT_CHECK; |
|
|
3518 | |
2309 | ev_io_stop (EV_A_ &w->io); |
3519 | ev_io_stop (EV_A_ &w->io); |
2310 | ev_prepare_stop (EV_A_ &w->prepare); |
3520 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3521 | ev_fork_stop (EV_A_ &w->fork); |
2311 | |
3522 | |
2312 | ev_stop (EV_A_ (W)w); |
3523 | ev_stop (EV_A_ (W)w); |
|
|
3524 | |
|
|
3525 | EV_FREQUENT_CHECK; |
2313 | } |
3526 | } |
2314 | #endif |
3527 | #endif |
2315 | |
3528 | |
2316 | #if EV_FORK_ENABLE |
3529 | #if EV_FORK_ENABLE |
2317 | void |
3530 | void |
2318 | ev_fork_start (EV_P_ ev_fork *w) |
3531 | ev_fork_start (EV_P_ ev_fork *w) |
2319 | { |
3532 | { |
2320 | if (expect_false (ev_is_active (w))) |
3533 | if (expect_false (ev_is_active (w))) |
2321 | return; |
3534 | return; |
|
|
3535 | |
|
|
3536 | EV_FREQUENT_CHECK; |
2322 | |
3537 | |
2323 | ev_start (EV_A_ (W)w, ++forkcnt); |
3538 | ev_start (EV_A_ (W)w, ++forkcnt); |
2324 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3539 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2325 | forks [forkcnt - 1] = w; |
3540 | forks [forkcnt - 1] = w; |
|
|
3541 | |
|
|
3542 | EV_FREQUENT_CHECK; |
2326 | } |
3543 | } |
2327 | |
3544 | |
2328 | void |
3545 | void |
2329 | ev_fork_stop (EV_P_ ev_fork *w) |
3546 | ev_fork_stop (EV_P_ ev_fork *w) |
2330 | { |
3547 | { |
2331 | clear_pending (EV_A_ (W)w); |
3548 | clear_pending (EV_A_ (W)w); |
2332 | if (expect_false (!ev_is_active (w))) |
3549 | if (expect_false (!ev_is_active (w))) |
2333 | return; |
3550 | return; |
2334 | |
3551 | |
|
|
3552 | EV_FREQUENT_CHECK; |
|
|
3553 | |
2335 | { |
3554 | { |
2336 | int active = ((W)w)->active; |
3555 | int active = ev_active (w); |
|
|
3556 | |
2337 | forks [active - 1] = forks [--forkcnt]; |
3557 | forks [active - 1] = forks [--forkcnt]; |
2338 | ((W)forks [active - 1])->active = active; |
3558 | ev_active (forks [active - 1]) = active; |
2339 | } |
3559 | } |
2340 | |
3560 | |
2341 | ev_stop (EV_A_ (W)w); |
3561 | ev_stop (EV_A_ (W)w); |
|
|
3562 | |
|
|
3563 | EV_FREQUENT_CHECK; |
|
|
3564 | } |
|
|
3565 | #endif |
|
|
3566 | |
|
|
3567 | #if EV_ASYNC_ENABLE |
|
|
3568 | void |
|
|
3569 | ev_async_start (EV_P_ ev_async *w) |
|
|
3570 | { |
|
|
3571 | if (expect_false (ev_is_active (w))) |
|
|
3572 | return; |
|
|
3573 | |
|
|
3574 | w->sent = 0; |
|
|
3575 | |
|
|
3576 | evpipe_init (EV_A); |
|
|
3577 | |
|
|
3578 | EV_FREQUENT_CHECK; |
|
|
3579 | |
|
|
3580 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3581 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3582 | asyncs [asynccnt - 1] = w; |
|
|
3583 | |
|
|
3584 | EV_FREQUENT_CHECK; |
|
|
3585 | } |
|
|
3586 | |
|
|
3587 | void |
|
|
3588 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3589 | { |
|
|
3590 | clear_pending (EV_A_ (W)w); |
|
|
3591 | if (expect_false (!ev_is_active (w))) |
|
|
3592 | return; |
|
|
3593 | |
|
|
3594 | EV_FREQUENT_CHECK; |
|
|
3595 | |
|
|
3596 | { |
|
|
3597 | int active = ev_active (w); |
|
|
3598 | |
|
|
3599 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3600 | ev_active (asyncs [active - 1]) = active; |
|
|
3601 | } |
|
|
3602 | |
|
|
3603 | ev_stop (EV_A_ (W)w); |
|
|
3604 | |
|
|
3605 | EV_FREQUENT_CHECK; |
|
|
3606 | } |
|
|
3607 | |
|
|
3608 | void |
|
|
3609 | ev_async_send (EV_P_ ev_async *w) |
|
|
3610 | { |
|
|
3611 | w->sent = 1; |
|
|
3612 | evpipe_write (EV_A_ &async_pending); |
2342 | } |
3613 | } |
2343 | #endif |
3614 | #endif |
2344 | |
3615 | |
2345 | /*****************************************************************************/ |
3616 | /*****************************************************************************/ |
2346 | |
3617 | |
… | |
… | |
2356 | once_cb (EV_P_ struct ev_once *once, int revents) |
3627 | once_cb (EV_P_ struct ev_once *once, int revents) |
2357 | { |
3628 | { |
2358 | void (*cb)(int revents, void *arg) = once->cb; |
3629 | void (*cb)(int revents, void *arg) = once->cb; |
2359 | void *arg = once->arg; |
3630 | void *arg = once->arg; |
2360 | |
3631 | |
2361 | ev_io_stop (EV_A_ &once->io); |
3632 | ev_io_stop (EV_A_ &once->io); |
2362 | ev_timer_stop (EV_A_ &once->to); |
3633 | ev_timer_stop (EV_A_ &once->to); |
2363 | ev_free (once); |
3634 | ev_free (once); |
2364 | |
3635 | |
2365 | cb (revents, arg); |
3636 | cb (revents, arg); |
2366 | } |
3637 | } |
2367 | |
3638 | |
2368 | static void |
3639 | static void |
2369 | once_cb_io (EV_P_ ev_io *w, int revents) |
3640 | once_cb_io (EV_P_ ev_io *w, int revents) |
2370 | { |
3641 | { |
2371 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3642 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3643 | |
|
|
3644 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2372 | } |
3645 | } |
2373 | |
3646 | |
2374 | static void |
3647 | static void |
2375 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3648 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2376 | { |
3649 | { |
2377 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3650 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3651 | |
|
|
3652 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2378 | } |
3653 | } |
2379 | |
3654 | |
2380 | void |
3655 | void |
2381 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3656 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2382 | { |
3657 | { |
2383 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3658 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2384 | |
3659 | |
2385 | if (expect_false (!once)) |
3660 | if (expect_false (!once)) |
2386 | { |
3661 | { |
2387 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3662 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2388 | return; |
3663 | return; |
2389 | } |
3664 | } |
2390 | |
3665 | |
2391 | once->cb = cb; |
3666 | once->cb = cb; |
2392 | once->arg = arg; |
3667 | once->arg = arg; |
… | |
… | |
2404 | ev_timer_set (&once->to, timeout, 0.); |
3679 | ev_timer_set (&once->to, timeout, 0.); |
2405 | ev_timer_start (EV_A_ &once->to); |
3680 | ev_timer_start (EV_A_ &once->to); |
2406 | } |
3681 | } |
2407 | } |
3682 | } |
2408 | |
3683 | |
|
|
3684 | /*****************************************************************************/ |
|
|
3685 | |
|
|
3686 | #if EV_WALK_ENABLE |
|
|
3687 | void |
|
|
3688 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3689 | { |
|
|
3690 | int i, j; |
|
|
3691 | ev_watcher_list *wl, *wn; |
|
|
3692 | |
|
|
3693 | if (types & (EV_IO | EV_EMBED)) |
|
|
3694 | for (i = 0; i < anfdmax; ++i) |
|
|
3695 | for (wl = anfds [i].head; wl; ) |
|
|
3696 | { |
|
|
3697 | wn = wl->next; |
|
|
3698 | |
|
|
3699 | #if EV_EMBED_ENABLE |
|
|
3700 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3701 | { |
|
|
3702 | if (types & EV_EMBED) |
|
|
3703 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3704 | } |
|
|
3705 | else |
|
|
3706 | #endif |
|
|
3707 | #if EV_USE_INOTIFY |
|
|
3708 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3709 | ; |
|
|
3710 | else |
|
|
3711 | #endif |
|
|
3712 | if ((ev_io *)wl != &pipe_w) |
|
|
3713 | if (types & EV_IO) |
|
|
3714 | cb (EV_A_ EV_IO, wl); |
|
|
3715 | |
|
|
3716 | wl = wn; |
|
|
3717 | } |
|
|
3718 | |
|
|
3719 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3720 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3721 | #if EV_STAT_ENABLE |
|
|
3722 | /*TODO: timer is not always active*/ |
|
|
3723 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3724 | { |
|
|
3725 | if (types & EV_STAT) |
|
|
3726 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3727 | } |
|
|
3728 | else |
|
|
3729 | #endif |
|
|
3730 | if (types & EV_TIMER) |
|
|
3731 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3732 | |
|
|
3733 | #if EV_PERIODIC_ENABLE |
|
|
3734 | if (types & EV_PERIODIC) |
|
|
3735 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3736 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3737 | #endif |
|
|
3738 | |
|
|
3739 | #if EV_IDLE_ENABLE |
|
|
3740 | if (types & EV_IDLE) |
|
|
3741 | for (j = NUMPRI; i--; ) |
|
|
3742 | for (i = idlecnt [j]; i--; ) |
|
|
3743 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3744 | #endif |
|
|
3745 | |
|
|
3746 | #if EV_FORK_ENABLE |
|
|
3747 | if (types & EV_FORK) |
|
|
3748 | for (i = forkcnt; i--; ) |
|
|
3749 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3750 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3751 | #endif |
|
|
3752 | |
|
|
3753 | #if EV_ASYNC_ENABLE |
|
|
3754 | if (types & EV_ASYNC) |
|
|
3755 | for (i = asynccnt; i--; ) |
|
|
3756 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3757 | #endif |
|
|
3758 | |
|
|
3759 | #if EV_PREPARE_ENABLE |
|
|
3760 | if (types & EV_PREPARE) |
|
|
3761 | for (i = preparecnt; i--; ) |
|
|
3762 | # if EV_EMBED_ENABLE |
|
|
3763 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3764 | # endif |
|
|
3765 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3766 | #endif |
|
|
3767 | |
|
|
3768 | #if EV_CHECK_ENABLE |
|
|
3769 | if (types & EV_CHECK) |
|
|
3770 | for (i = checkcnt; i--; ) |
|
|
3771 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3772 | #endif |
|
|
3773 | |
|
|
3774 | #if EV_SIGNAL_ENABLE |
|
|
3775 | if (types & EV_SIGNAL) |
|
|
3776 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3777 | for (wl = signals [i].head; wl; ) |
|
|
3778 | { |
|
|
3779 | wn = wl->next; |
|
|
3780 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3781 | wl = wn; |
|
|
3782 | } |
|
|
3783 | #endif |
|
|
3784 | |
|
|
3785 | #if EV_CHILD_ENABLE |
|
|
3786 | if (types & EV_CHILD) |
|
|
3787 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3788 | for (wl = childs [i]; wl; ) |
|
|
3789 | { |
|
|
3790 | wn = wl->next; |
|
|
3791 | cb (EV_A_ EV_CHILD, wl); |
|
|
3792 | wl = wn; |
|
|
3793 | } |
|
|
3794 | #endif |
|
|
3795 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3796 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3797 | } |
|
|
3798 | #endif |
|
|
3799 | |
2409 | #if EV_MULTIPLICITY |
3800 | #if EV_MULTIPLICITY |
2410 | #include "ev_wrap.h" |
3801 | #include "ev_wrap.h" |
2411 | #endif |
3802 | #endif |
2412 | |
3803 | |
2413 | #ifdef __cplusplus |
3804 | EV_CPP(}) |
2414 | } |
|
|
2415 | #endif |
|
|
2416 | |
3805 | |