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_SELECT |
79 | # ifndef EV_USE_NANOSLEEP |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
80 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
61 | # define EV_USE_SELECT 1 |
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62 | # else |
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63 | # define EV_USE_SELECT 0 |
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64 | # endif |
81 | # endif |
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82 | # else |
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83 | # undef EV_USE_NANOSLEEP |
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84 | # define EV_USE_NANOSLEEP 0 |
65 | # endif |
85 | # endif |
66 | |
86 | |
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87 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
67 | # ifndef EV_USE_POLL |
88 | # ifndef EV_USE_SELECT |
68 | # if HAVE_POLL && HAVE_POLL_H |
89 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
69 | # define EV_USE_POLL 1 |
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70 | # else |
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71 | # define EV_USE_POLL 0 |
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72 | # 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 |
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94 | # endif |
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95 | |
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96 | # if HAVE_POLL && HAVE_POLL_H |
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97 | # ifndef EV_USE_POLL |
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98 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
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99 | # endif |
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100 | # else |
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101 | # undef EV_USE_POLL |
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102 | # define EV_USE_POLL 0 |
73 | # endif |
103 | # endif |
74 | |
104 | |
75 | # ifndef EV_USE_EPOLL |
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76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
77 | # define EV_USE_EPOLL 1 |
106 | # ifndef EV_USE_EPOLL |
78 | # else |
107 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
79 | # define EV_USE_EPOLL 0 |
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80 | # 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 |
81 | # endif |
112 | # endif |
82 | |
113 | |
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114 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
83 | # ifndef EV_USE_KQUEUE |
115 | # ifndef EV_USE_KQUEUE |
84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
85 | # define EV_USE_KQUEUE 1 |
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86 | # else |
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87 | # define EV_USE_KQUEUE 0 |
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88 | # 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 |
89 | # endif |
121 | # endif |
90 | |
122 | |
91 | # ifndef EV_USE_PORT |
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92 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
93 | # define EV_USE_PORT 1 |
124 | # ifndef EV_USE_PORT |
94 | # else |
125 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
95 | # define EV_USE_PORT 0 |
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96 | # 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 |
97 | # endif |
130 | # endif |
98 | |
131 | |
99 | # ifndef EV_USE_INOTIFY |
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100 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
101 | # define EV_USE_INOTIFY 1 |
133 | # ifndef EV_USE_INOTIFY |
102 | # else |
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103 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY EV_FEATURE_OS |
104 | # 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 |
105 | # endif |
139 | # endif |
106 | |
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 | |
107 | #endif |
159 | #endif |
108 | |
160 | |
109 | #include <math.h> |
161 | #include <math.h> |
110 | #include <stdlib.h> |
162 | #include <stdlib.h> |
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163 | #include <string.h> |
111 | #include <fcntl.h> |
164 | #include <fcntl.h> |
112 | #include <stddef.h> |
165 | #include <stddef.h> |
113 | |
166 | |
114 | #include <stdio.h> |
167 | #include <stdio.h> |
115 | |
168 | |
116 | #include <assert.h> |
169 | #include <assert.h> |
117 | #include <errno.h> |
170 | #include <errno.h> |
118 | #include <sys/types.h> |
171 | #include <sys/types.h> |
119 | #include <time.h> |
172 | #include <time.h> |
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173 | #include <limits.h> |
120 | |
174 | |
121 | #include <signal.h> |
175 | #include <signal.h> |
122 | |
176 | |
123 | #ifdef EV_H |
177 | #ifdef EV_H |
124 | # include EV_H |
178 | # include EV_H |
125 | #else |
179 | #else |
126 | # include "ev.h" |
180 | # include "ev.h" |
127 | #endif |
181 | #endif |
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182 | |
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183 | EV_CPP(extern "C" {) |
128 | |
184 | |
129 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
130 | # include <sys/time.h> |
186 | # include <sys/time.h> |
131 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
132 | # include <unistd.h> |
188 | # include <unistd.h> |
133 | #else |
189 | #else |
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190 | # include <io.h> |
134 | # define WIN32_LEAN_AND_MEAN |
191 | # define WIN32_LEAN_AND_MEAN |
135 | # include <windows.h> |
192 | # include <windows.h> |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
138 | # 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 |
139 | #endif |
242 | # endif |
140 | |
243 | #endif |
141 | /**/ |
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142 | |
244 | |
143 | #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 |
144 | # define EV_USE_MONOTONIC 0 |
249 | # define EV_USE_MONOTONIC 0 |
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250 | # endif |
145 | #endif |
251 | #endif |
146 | |
252 | |
147 | #ifndef EV_USE_REALTIME |
253 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
254 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
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255 | #endif |
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256 | |
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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 |
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261 | # define EV_USE_NANOSLEEP 0 |
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262 | # endif |
149 | #endif |
263 | #endif |
150 | |
264 | |
151 | #ifndef EV_USE_SELECT |
265 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
266 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
153 | #endif |
267 | #endif |
154 | |
268 | |
155 | #ifndef EV_USE_POLL |
269 | #ifndef EV_USE_POLL |
156 | # ifdef _WIN32 |
270 | # ifdef _WIN32 |
157 | # define EV_USE_POLL 0 |
271 | # define EV_USE_POLL 0 |
158 | # else |
272 | # else |
159 | # define EV_USE_POLL 1 |
273 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
160 | # endif |
274 | # endif |
161 | #endif |
275 | #endif |
162 | |
276 | |
163 | #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 |
164 | # define EV_USE_EPOLL 0 |
281 | # define EV_USE_EPOLL 0 |
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282 | # endif |
165 | #endif |
283 | #endif |
166 | |
284 | |
167 | #ifndef EV_USE_KQUEUE |
285 | #ifndef EV_USE_KQUEUE |
168 | # define EV_USE_KQUEUE 0 |
286 | # define EV_USE_KQUEUE 0 |
169 | #endif |
287 | #endif |
… | |
… | |
171 | #ifndef EV_USE_PORT |
289 | #ifndef EV_USE_PORT |
172 | # define EV_USE_PORT 0 |
290 | # define EV_USE_PORT 0 |
173 | #endif |
291 | #endif |
174 | |
292 | |
175 | #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 |
176 | # define EV_USE_INOTIFY 0 |
297 | # define EV_USE_INOTIFY 0 |
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298 | # endif |
177 | #endif |
299 | #endif |
178 | |
300 | |
179 | #ifndef EV_PID_HASHSIZE |
301 | #ifndef EV_PID_HASHSIZE |
180 | # if EV_MINIMAL |
302 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
181 | # 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 |
182 | # else |
312 | # else |
183 | # define EV_PID_HASHSIZE 16 |
313 | # define EV_USE_EVENTFD 0 |
184 | # endif |
314 | # endif |
185 | #endif |
315 | #endif |
186 | |
316 | |
187 | #ifndef EV_INOTIFY_HASHSIZE |
317 | #ifndef EV_USE_SIGNALFD |
188 | # if EV_MINIMAL |
318 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
189 | # define EV_INOTIFY_HASHSIZE 1 |
319 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
190 | # else |
320 | # else |
191 | # define EV_INOTIFY_HASHSIZE 16 |
321 | # define EV_USE_SIGNALFD 0 |
192 | # endif |
322 | # endif |
193 | #endif |
323 | #endif |
194 | |
324 | |
195 | /**/ |
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 */ |
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358 | |
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359 | #ifdef _AIX |
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360 | /* AIX has a completely broken poll.h header */ |
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361 | # undef EV_USE_POLL |
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362 | # define EV_USE_POLL 0 |
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363 | #endif |
196 | |
364 | |
197 | #ifndef CLOCK_MONOTONIC |
365 | #ifndef CLOCK_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
199 | # define EV_USE_MONOTONIC 0 |
367 | # define EV_USE_MONOTONIC 0 |
200 | #endif |
368 | #endif |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
370 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
371 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
372 | # define EV_USE_REALTIME 0 |
205 | #endif |
373 | #endif |
206 | |
374 | |
|
|
375 | #if !EV_STAT_ENABLE |
|
|
376 | # undef EV_USE_INOTIFY |
|
|
377 | # define EV_USE_INOTIFY 0 |
|
|
378 | #endif |
|
|
379 | |
|
|
380 | #if !EV_USE_NANOSLEEP |
|
|
381 | # ifndef _WIN32 |
|
|
382 | # include <sys/select.h> |
|
|
383 | # endif |
|
|
384 | #endif |
|
|
385 | |
|
|
386 | #if EV_USE_INOTIFY |
|
|
387 | # include <sys/statfs.h> |
|
|
388 | # include <sys/inotify.h> |
|
|
389 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
390 | # ifndef IN_DONT_FOLLOW |
|
|
391 | # undef EV_USE_INOTIFY |
|
|
392 | # define EV_USE_INOTIFY 0 |
|
|
393 | # endif |
|
|
394 | #endif |
|
|
395 | |
207 | #if EV_SELECT_IS_WINSOCKET |
396 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
397 | # include <winsock.h> |
209 | #endif |
398 | #endif |
210 | |
399 | |
211 | #if !EV_STAT_ENABLE |
400 | #if EV_USE_EVENTFD |
212 | # define EV_USE_INOTIFY 0 |
401 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
402 | # include <stdint.h> |
|
|
403 | # ifndef EFD_NONBLOCK |
|
|
404 | # define EFD_NONBLOCK O_NONBLOCK |
213 | #endif |
405 | # endif |
|
|
406 | # ifndef EFD_CLOEXEC |
|
|
407 | # ifdef O_CLOEXEC |
|
|
408 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
409 | # else |
|
|
410 | # define EFD_CLOEXEC 02000000 |
|
|
411 | # endif |
|
|
412 | # endif |
|
|
413 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
414 | #endif |
214 | |
415 | |
215 | #if EV_USE_INOTIFY |
416 | #if EV_USE_SIGNALFD |
|
|
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
216 | # include <sys/inotify.h> |
418 | # include <stdint.h> |
|
|
419 | # ifndef SFD_NONBLOCK |
|
|
420 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
421 | # endif |
|
|
422 | # ifndef SFD_CLOEXEC |
|
|
423 | # ifdef O_CLOEXEC |
|
|
424 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
425 | # else |
|
|
426 | # define SFD_CLOEXEC 02000000 |
|
|
427 | # endif |
|
|
428 | # endif |
|
|
429 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
430 | |
|
|
431 | struct signalfd_siginfo |
|
|
432 | { |
|
|
433 | uint32_t ssi_signo; |
|
|
434 | char pad[128 - sizeof (uint32_t)]; |
|
|
435 | }; |
217 | #endif |
436 | #endif |
218 | |
437 | |
219 | /**/ |
438 | /**/ |
|
|
439 | |
|
|
440 | #if EV_VERIFY >= 3 |
|
|
441 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
442 | #else |
|
|
443 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
444 | #endif |
|
|
445 | |
|
|
446 | /* |
|
|
447 | * This is used to avoid floating point rounding problems. |
|
|
448 | * It is added to ev_rt_now when scheduling periodics |
|
|
449 | * to ensure progress, time-wise, even when rounding |
|
|
450 | * errors are against us. |
|
|
451 | * This value is good at least till the year 4000. |
|
|
452 | * Better solutions welcome. |
|
|
453 | */ |
|
|
454 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
220 | |
455 | |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
456 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
222 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
457 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
223 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
|
|
224 | |
458 | |
|
|
459 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
460 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
461 | |
225 | #if __GNUC__ >= 3 |
462 | #if __GNUC__ >= 4 |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
463 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
227 | # define noinline __attribute__ ((noinline)) |
464 | # define noinline __attribute__ ((noinline)) |
228 | #else |
465 | #else |
229 | # define expect(expr,value) (expr) |
466 | # define expect(expr,value) (expr) |
230 | # define noinline |
467 | # define noinline |
231 | # if __STDC_VERSION__ < 199901L |
468 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
232 | # define inline |
469 | # define inline |
233 | # endif |
470 | # endif |
234 | #endif |
471 | #endif |
235 | |
472 | |
236 | #define expect_false(expr) expect ((expr) != 0, 0) |
473 | #define expect_false(expr) expect ((expr) != 0, 0) |
237 | #define expect_true(expr) expect ((expr) != 0, 1) |
474 | #define expect_true(expr) expect ((expr) != 0, 1) |
238 | #define inline_size static inline |
475 | #define inline_size static inline |
239 | |
476 | |
240 | #if EV_MINIMAL |
477 | #if EV_FEATURE_CODE |
|
|
478 | # define inline_speed static inline |
|
|
479 | #else |
241 | # define inline_speed static noinline |
480 | # define inline_speed static noinline |
|
|
481 | #endif |
|
|
482 | |
|
|
483 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
484 | |
|
|
485 | #if EV_MINPRI == EV_MAXPRI |
|
|
486 | # define ABSPRI(w) (((W)w), 0) |
242 | #else |
487 | #else |
243 | # define inline_speed static inline |
|
|
244 | #endif |
|
|
245 | |
|
|
246 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
247 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
488 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
489 | #endif |
248 | |
490 | |
249 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
491 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
250 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
492 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
251 | |
493 | |
252 | typedef ev_watcher *W; |
494 | typedef ev_watcher *W; |
253 | typedef ev_watcher_list *WL; |
495 | typedef ev_watcher_list *WL; |
254 | typedef ev_watcher_time *WT; |
496 | typedef ev_watcher_time *WT; |
255 | |
497 | |
|
|
498 | #define ev_active(w) ((W)(w))->active |
|
|
499 | #define ev_at(w) ((WT)(w))->at |
|
|
500 | |
|
|
501 | #if EV_USE_REALTIME |
|
|
502 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
503 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
504 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
505 | #endif |
|
|
506 | |
|
|
507 | #if EV_USE_MONOTONIC |
256 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
508 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
509 | #endif |
|
|
510 | |
|
|
511 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
512 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
513 | #endif |
|
|
514 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
515 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
516 | #endif |
|
|
517 | #ifndef EV_WIN32_CLOSE_FD |
|
|
518 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
519 | #endif |
257 | |
520 | |
258 | #ifdef _WIN32 |
521 | #ifdef _WIN32 |
259 | # include "ev_win32.c" |
522 | # include "ev_win32.c" |
260 | #endif |
523 | #endif |
261 | |
524 | |
262 | /*****************************************************************************/ |
525 | /*****************************************************************************/ |
263 | |
526 | |
|
|
527 | #ifdef __linux |
|
|
528 | # include <sys/utsname.h> |
|
|
529 | #endif |
|
|
530 | |
|
|
531 | static unsigned int noinline |
|
|
532 | ev_linux_version (void) |
|
|
533 | { |
|
|
534 | #ifdef __linux |
|
|
535 | unsigned int v = 0; |
|
|
536 | struct utsname buf; |
|
|
537 | int i; |
|
|
538 | char *p = buf.release; |
|
|
539 | |
|
|
540 | if (uname (&buf)) |
|
|
541 | return 0; |
|
|
542 | |
|
|
543 | for (i = 3+1; --i; ) |
|
|
544 | { |
|
|
545 | unsigned int c = 0; |
|
|
546 | |
|
|
547 | for (;;) |
|
|
548 | { |
|
|
549 | if (*p >= '0' && *p <= '9') |
|
|
550 | c = c * 10 + *p++ - '0'; |
|
|
551 | else |
|
|
552 | { |
|
|
553 | p += *p == '.'; |
|
|
554 | break; |
|
|
555 | } |
|
|
556 | } |
|
|
557 | |
|
|
558 | v = (v << 8) | c; |
|
|
559 | } |
|
|
560 | |
|
|
561 | return v; |
|
|
562 | #else |
|
|
563 | return 0; |
|
|
564 | #endif |
|
|
565 | } |
|
|
566 | |
|
|
567 | /*****************************************************************************/ |
|
|
568 | |
|
|
569 | #if EV_AVOID_STDIO |
|
|
570 | static void noinline |
|
|
571 | ev_printerr (const char *msg) |
|
|
572 | { |
|
|
573 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
574 | } |
|
|
575 | #endif |
|
|
576 | |
264 | static void (*syserr_cb)(const char *msg); |
577 | static void (*syserr_cb)(const char *msg); |
265 | |
578 | |
266 | void |
579 | void |
267 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
580 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
268 | { |
581 | { |
269 | syserr_cb = cb; |
582 | syserr_cb = cb; |
270 | } |
583 | } |
271 | |
584 | |
272 | static void noinline |
585 | static void noinline |
273 | syserr (const char *msg) |
586 | ev_syserr (const char *msg) |
274 | { |
587 | { |
275 | if (!msg) |
588 | if (!msg) |
276 | msg = "(libev) system error"; |
589 | msg = "(libev) system error"; |
277 | |
590 | |
278 | if (syserr_cb) |
591 | if (syserr_cb) |
279 | syserr_cb (msg); |
592 | syserr_cb (msg); |
280 | else |
593 | else |
281 | { |
594 | { |
|
|
595 | #if EV_AVOID_STDIO |
|
|
596 | const char *err = strerror (errno); |
|
|
597 | |
|
|
598 | ev_printerr (msg); |
|
|
599 | ev_printerr (": "); |
|
|
600 | ev_printerr (err); |
|
|
601 | ev_printerr ("\n"); |
|
|
602 | #else |
282 | perror (msg); |
603 | perror (msg); |
|
|
604 | #endif |
283 | abort (); |
605 | abort (); |
284 | } |
606 | } |
285 | } |
607 | } |
286 | |
608 | |
|
|
609 | static void * |
|
|
610 | ev_realloc_emul (void *ptr, long size) |
|
|
611 | { |
|
|
612 | #if __GLIBC__ |
|
|
613 | return realloc (ptr, size); |
|
|
614 | #else |
|
|
615 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
616 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
617 | * the single unix specification, so work around them here. |
|
|
618 | */ |
|
|
619 | |
|
|
620 | if (size) |
|
|
621 | return realloc (ptr, size); |
|
|
622 | |
|
|
623 | free (ptr); |
|
|
624 | return 0; |
|
|
625 | #endif |
|
|
626 | } |
|
|
627 | |
287 | static void *(*alloc)(void *ptr, long size); |
628 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
288 | |
629 | |
289 | void |
630 | void |
290 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
631 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
291 | { |
632 | { |
292 | alloc = cb; |
633 | alloc = cb; |
293 | } |
634 | } |
294 | |
635 | |
295 | inline_speed void * |
636 | inline_speed void * |
296 | ev_realloc (void *ptr, long size) |
637 | ev_realloc (void *ptr, long size) |
297 | { |
638 | { |
298 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
639 | ptr = alloc (ptr, size); |
299 | |
640 | |
300 | if (!ptr && size) |
641 | if (!ptr && size) |
301 | { |
642 | { |
|
|
643 | #if EV_AVOID_STDIO |
|
|
644 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
645 | #else |
302 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
646 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
647 | #endif |
303 | abort (); |
648 | abort (); |
304 | } |
649 | } |
305 | |
650 | |
306 | return ptr; |
651 | return ptr; |
307 | } |
652 | } |
… | |
… | |
309 | #define ev_malloc(size) ev_realloc (0, (size)) |
654 | #define ev_malloc(size) ev_realloc (0, (size)) |
310 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
655 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
311 | |
656 | |
312 | /*****************************************************************************/ |
657 | /*****************************************************************************/ |
313 | |
658 | |
|
|
659 | /* set in reify when reification needed */ |
|
|
660 | #define EV_ANFD_REIFY 1 |
|
|
661 | |
|
|
662 | /* file descriptor info structure */ |
314 | typedef struct |
663 | typedef struct |
315 | { |
664 | { |
316 | WL head; |
665 | WL head; |
317 | unsigned char events; |
666 | unsigned char events; /* the events watched for */ |
|
|
667 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
668 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
318 | unsigned char reify; |
669 | unsigned char unused; |
|
|
670 | #if EV_USE_EPOLL |
|
|
671 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
672 | #endif |
319 | #if EV_SELECT_IS_WINSOCKET |
673 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
320 | SOCKET handle; |
674 | SOCKET handle; |
321 | #endif |
675 | #endif |
|
|
676 | #if EV_USE_IOCP |
|
|
677 | OVERLAPPED or, ow; |
|
|
678 | #endif |
322 | } ANFD; |
679 | } ANFD; |
323 | |
680 | |
|
|
681 | /* stores the pending event set for a given watcher */ |
324 | typedef struct |
682 | typedef struct |
325 | { |
683 | { |
326 | W w; |
684 | W w; |
327 | int events; |
685 | int events; /* the pending event set for the given watcher */ |
328 | } ANPENDING; |
686 | } ANPENDING; |
329 | |
687 | |
330 | #if EV_USE_INOTIFY |
688 | #if EV_USE_INOTIFY |
|
|
689 | /* hash table entry per inotify-id */ |
331 | typedef struct |
690 | typedef struct |
332 | { |
691 | { |
333 | WL head; |
692 | WL head; |
334 | } ANFS; |
693 | } ANFS; |
|
|
694 | #endif |
|
|
695 | |
|
|
696 | /* Heap Entry */ |
|
|
697 | #if EV_HEAP_CACHE_AT |
|
|
698 | /* a heap element */ |
|
|
699 | typedef struct { |
|
|
700 | ev_tstamp at; |
|
|
701 | WT w; |
|
|
702 | } ANHE; |
|
|
703 | |
|
|
704 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
705 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
706 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
707 | #else |
|
|
708 | /* a heap element */ |
|
|
709 | typedef WT ANHE; |
|
|
710 | |
|
|
711 | #define ANHE_w(he) (he) |
|
|
712 | #define ANHE_at(he) (he)->at |
|
|
713 | #define ANHE_at_cache(he) |
335 | #endif |
714 | #endif |
336 | |
715 | |
337 | #if EV_MULTIPLICITY |
716 | #if EV_MULTIPLICITY |
338 | |
717 | |
339 | struct ev_loop |
718 | struct ev_loop |
… | |
… | |
358 | |
737 | |
359 | static int ev_default_loop_ptr; |
738 | static int ev_default_loop_ptr; |
360 | |
739 | |
361 | #endif |
740 | #endif |
362 | |
741 | |
|
|
742 | #if EV_FEATURE_API |
|
|
743 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
744 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
745 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
746 | #else |
|
|
747 | # define EV_RELEASE_CB (void)0 |
|
|
748 | # define EV_ACQUIRE_CB (void)0 |
|
|
749 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
750 | #endif |
|
|
751 | |
|
|
752 | #define EVBREAK_RECURSE 0x80 |
|
|
753 | |
363 | /*****************************************************************************/ |
754 | /*****************************************************************************/ |
364 | |
755 | |
|
|
756 | #ifndef EV_HAVE_EV_TIME |
365 | ev_tstamp |
757 | ev_tstamp |
366 | ev_time (void) |
758 | ev_time (void) |
367 | { |
759 | { |
368 | #if EV_USE_REALTIME |
760 | #if EV_USE_REALTIME |
|
|
761 | if (expect_true (have_realtime)) |
|
|
762 | { |
369 | struct timespec ts; |
763 | struct timespec ts; |
370 | clock_gettime (CLOCK_REALTIME, &ts); |
764 | clock_gettime (CLOCK_REALTIME, &ts); |
371 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
765 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
372 | #else |
766 | } |
|
|
767 | #endif |
|
|
768 | |
373 | struct timeval tv; |
769 | struct timeval tv; |
374 | gettimeofday (&tv, 0); |
770 | gettimeofday (&tv, 0); |
375 | return tv.tv_sec + tv.tv_usec * 1e-6; |
771 | return tv.tv_sec + tv.tv_usec * 1e-6; |
376 | #endif |
|
|
377 | } |
772 | } |
|
|
773 | #endif |
378 | |
774 | |
379 | ev_tstamp inline_size |
775 | inline_size ev_tstamp |
380 | get_clock (void) |
776 | get_clock (void) |
381 | { |
777 | { |
382 | #if EV_USE_MONOTONIC |
778 | #if EV_USE_MONOTONIC |
383 | if (expect_true (have_monotonic)) |
779 | if (expect_true (have_monotonic)) |
384 | { |
780 | { |
… | |
… | |
397 | { |
793 | { |
398 | return ev_rt_now; |
794 | return ev_rt_now; |
399 | } |
795 | } |
400 | #endif |
796 | #endif |
401 | |
797 | |
402 | int inline_size |
798 | void |
|
|
799 | ev_sleep (ev_tstamp delay) |
|
|
800 | { |
|
|
801 | if (delay > 0.) |
|
|
802 | { |
|
|
803 | #if EV_USE_NANOSLEEP |
|
|
804 | struct timespec ts; |
|
|
805 | |
|
|
806 | EV_TS_SET (ts, delay); |
|
|
807 | nanosleep (&ts, 0); |
|
|
808 | #elif defined(_WIN32) |
|
|
809 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
810 | #else |
|
|
811 | struct timeval tv; |
|
|
812 | |
|
|
813 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
814 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
815 | /* by older ones */ |
|
|
816 | EV_TV_SET (tv, delay); |
|
|
817 | select (0, 0, 0, 0, &tv); |
|
|
818 | #endif |
|
|
819 | } |
|
|
820 | } |
|
|
821 | |
|
|
822 | /*****************************************************************************/ |
|
|
823 | |
|
|
824 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
825 | |
|
|
826 | /* find a suitable new size for the given array, */ |
|
|
827 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
828 | inline_size int |
403 | array_nextsize (int elem, int cur, int cnt) |
829 | array_nextsize (int elem, int cur, int cnt) |
404 | { |
830 | { |
405 | int ncur = cur + 1; |
831 | int ncur = cur + 1; |
406 | |
832 | |
407 | do |
833 | do |
408 | ncur <<= 1; |
834 | ncur <<= 1; |
409 | while (cnt > ncur); |
835 | while (cnt > ncur); |
410 | |
836 | |
411 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
837 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
412 | if (elem * ncur > 4096) |
838 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
413 | { |
839 | { |
414 | ncur *= elem; |
840 | ncur *= elem; |
415 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
841 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
416 | ncur = ncur - sizeof (void *) * 4; |
842 | ncur = ncur - sizeof (void *) * 4; |
417 | ncur /= elem; |
843 | ncur /= elem; |
418 | } |
844 | } |
419 | |
845 | |
420 | return ncur; |
846 | return ncur; |
421 | } |
847 | } |
422 | |
848 | |
423 | inline_speed void * |
849 | static noinline void * |
424 | array_realloc (int elem, void *base, int *cur, int cnt) |
850 | array_realloc (int elem, void *base, int *cur, int cnt) |
425 | { |
851 | { |
426 | *cur = array_nextsize (elem, *cur, cnt); |
852 | *cur = array_nextsize (elem, *cur, cnt); |
427 | return ev_realloc (base, elem * *cur); |
853 | return ev_realloc (base, elem * *cur); |
428 | } |
854 | } |
|
|
855 | |
|
|
856 | #define array_init_zero(base,count) \ |
|
|
857 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
429 | |
858 | |
430 | #define array_needsize(type,base,cur,cnt,init) \ |
859 | #define array_needsize(type,base,cur,cnt,init) \ |
431 | if (expect_false ((cnt) > (cur))) \ |
860 | if (expect_false ((cnt) > (cur))) \ |
432 | { \ |
861 | { \ |
433 | int ocur_ = (cur); \ |
862 | int ocur_ = (cur); \ |
… | |
… | |
445 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
874 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
446 | } |
875 | } |
447 | #endif |
876 | #endif |
448 | |
877 | |
449 | #define array_free(stem, idx) \ |
878 | #define array_free(stem, idx) \ |
450 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
879 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
451 | |
880 | |
452 | /*****************************************************************************/ |
881 | /*****************************************************************************/ |
|
|
882 | |
|
|
883 | /* dummy callback for pending events */ |
|
|
884 | static void noinline |
|
|
885 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
886 | { |
|
|
887 | } |
453 | |
888 | |
454 | void noinline |
889 | void noinline |
455 | ev_feed_event (EV_P_ void *w, int revents) |
890 | ev_feed_event (EV_P_ void *w, int revents) |
456 | { |
891 | { |
457 | W w_ = (W)w; |
892 | W w_ = (W)w; |
|
|
893 | int pri = ABSPRI (w_); |
458 | |
894 | |
459 | if (expect_false (w_->pending)) |
895 | if (expect_false (w_->pending)) |
|
|
896 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
897 | else |
460 | { |
898 | { |
|
|
899 | w_->pending = ++pendingcnt [pri]; |
|
|
900 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
901 | pendings [pri][w_->pending - 1].w = w_; |
461 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
902 | pendings [pri][w_->pending - 1].events = revents; |
462 | return; |
|
|
463 | } |
903 | } |
464 | |
|
|
465 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
466 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
467 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
468 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
469 | } |
904 | } |
470 | |
905 | |
471 | void inline_size |
906 | inline_speed void |
|
|
907 | feed_reverse (EV_P_ W w) |
|
|
908 | { |
|
|
909 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
910 | rfeeds [rfeedcnt++] = w; |
|
|
911 | } |
|
|
912 | |
|
|
913 | inline_size void |
|
|
914 | feed_reverse_done (EV_P_ int revents) |
|
|
915 | { |
|
|
916 | do |
|
|
917 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
918 | while (rfeedcnt); |
|
|
919 | } |
|
|
920 | |
|
|
921 | inline_speed void |
472 | queue_events (EV_P_ W *events, int eventcnt, int type) |
922 | queue_events (EV_P_ W *events, int eventcnt, int type) |
473 | { |
923 | { |
474 | int i; |
924 | int i; |
475 | |
925 | |
476 | for (i = 0; i < eventcnt; ++i) |
926 | for (i = 0; i < eventcnt; ++i) |
477 | ev_feed_event (EV_A_ events [i], type); |
927 | ev_feed_event (EV_A_ events [i], type); |
478 | } |
928 | } |
479 | |
929 | |
480 | /*****************************************************************************/ |
930 | /*****************************************************************************/ |
481 | |
931 | |
482 | void inline_size |
932 | inline_speed void |
483 | anfds_init (ANFD *base, int count) |
|
|
484 | { |
|
|
485 | while (count--) |
|
|
486 | { |
|
|
487 | base->head = 0; |
|
|
488 | base->events = EV_NONE; |
|
|
489 | base->reify = 0; |
|
|
490 | |
|
|
491 | ++base; |
|
|
492 | } |
|
|
493 | } |
|
|
494 | |
|
|
495 | void inline_speed |
|
|
496 | fd_event (EV_P_ int fd, int revents) |
933 | fd_event_nocheck (EV_P_ int fd, int revents) |
497 | { |
934 | { |
498 | ANFD *anfd = anfds + fd; |
935 | ANFD *anfd = anfds + fd; |
499 | ev_io *w; |
936 | ev_io *w; |
500 | |
937 | |
501 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
938 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
505 | if (ev) |
942 | if (ev) |
506 | ev_feed_event (EV_A_ (W)w, ev); |
943 | ev_feed_event (EV_A_ (W)w, ev); |
507 | } |
944 | } |
508 | } |
945 | } |
509 | |
946 | |
|
|
947 | /* do not submit kernel events for fds that have reify set */ |
|
|
948 | /* because that means they changed while we were polling for new events */ |
|
|
949 | inline_speed void |
|
|
950 | fd_event (EV_P_ int fd, int revents) |
|
|
951 | { |
|
|
952 | ANFD *anfd = anfds + fd; |
|
|
953 | |
|
|
954 | if (expect_true (!anfd->reify)) |
|
|
955 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
956 | } |
|
|
957 | |
510 | void |
958 | void |
511 | ev_feed_fd_event (EV_P_ int fd, int revents) |
959 | ev_feed_fd_event (EV_P_ int fd, int revents) |
512 | { |
960 | { |
513 | if (fd >= 0 && fd < anfdmax) |
961 | if (fd >= 0 && fd < anfdmax) |
514 | fd_event (EV_A_ fd, revents); |
962 | fd_event_nocheck (EV_A_ fd, revents); |
515 | } |
963 | } |
516 | |
964 | |
517 | void inline_size |
965 | /* make sure the external fd watch events are in-sync */ |
|
|
966 | /* with the kernel/libev internal state */ |
|
|
967 | inline_size void |
518 | fd_reify (EV_P) |
968 | fd_reify (EV_P) |
519 | { |
969 | { |
520 | int i; |
970 | int i; |
521 | |
971 | |
522 | for (i = 0; i < fdchangecnt; ++i) |
972 | for (i = 0; i < fdchangecnt; ++i) |
523 | { |
973 | { |
524 | int fd = fdchanges [i]; |
974 | int fd = fdchanges [i]; |
525 | ANFD *anfd = anfds + fd; |
975 | ANFD *anfd = anfds + fd; |
526 | ev_io *w; |
976 | ev_io *w; |
527 | |
977 | |
528 | int events = 0; |
978 | unsigned char o_events = anfd->events; |
|
|
979 | unsigned char o_reify = anfd->reify; |
529 | |
980 | |
530 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
981 | anfd->reify = 0; |
531 | events |= w->events; |
|
|
532 | |
982 | |
533 | #if EV_SELECT_IS_WINSOCKET |
983 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
534 | if (events) |
984 | if (o_reify & EV__IOFDSET) |
535 | { |
985 | { |
536 | unsigned long argp; |
986 | unsigned long arg; |
537 | anfd->handle = _get_osfhandle (fd); |
987 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
538 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
988 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
989 | printf ("oi %d %x\n", fd, anfd->handle);//D |
539 | } |
990 | } |
540 | #endif |
991 | #endif |
541 | |
992 | |
542 | anfd->reify = 0; |
993 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
|
|
994 | { |
|
|
995 | anfd->events = 0; |
543 | |
996 | |
|
|
997 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
998 | anfd->events |= (unsigned char)w->events; |
|
|
999 | |
|
|
1000 | if (o_events != anfd->events) |
|
|
1001 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
1002 | } |
|
|
1003 | |
|
|
1004 | if (o_reify & EV__IOFDSET) |
544 | backend_modify (EV_A_ fd, anfd->events, events); |
1005 | backend_modify (EV_A_ fd, o_events, anfd->events); |
545 | anfd->events = events; |
|
|
546 | } |
1006 | } |
547 | |
1007 | |
548 | fdchangecnt = 0; |
1008 | fdchangecnt = 0; |
549 | } |
1009 | } |
550 | |
1010 | |
551 | void inline_size |
1011 | /* something about the given fd changed */ |
|
|
1012 | inline_size void |
552 | fd_change (EV_P_ int fd) |
1013 | fd_change (EV_P_ int fd, int flags) |
553 | { |
1014 | { |
554 | if (expect_false (anfds [fd].reify)) |
1015 | unsigned char reify = anfds [fd].reify; |
555 | return; |
|
|
556 | |
|
|
557 | anfds [fd].reify = 1; |
1016 | anfds [fd].reify |= flags; |
558 | |
1017 | |
|
|
1018 | if (expect_true (!reify)) |
|
|
1019 | { |
559 | ++fdchangecnt; |
1020 | ++fdchangecnt; |
560 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1021 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
561 | fdchanges [fdchangecnt - 1] = fd; |
1022 | fdchanges [fdchangecnt - 1] = fd; |
|
|
1023 | } |
562 | } |
1024 | } |
563 | |
1025 | |
564 | void inline_speed |
1026 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1027 | inline_speed void |
565 | fd_kill (EV_P_ int fd) |
1028 | fd_kill (EV_P_ int fd) |
566 | { |
1029 | { |
567 | ev_io *w; |
1030 | ev_io *w; |
568 | |
1031 | |
569 | while ((w = (ev_io *)anfds [fd].head)) |
1032 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
571 | ev_io_stop (EV_A_ w); |
1034 | ev_io_stop (EV_A_ w); |
572 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1035 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
573 | } |
1036 | } |
574 | } |
1037 | } |
575 | |
1038 | |
576 | int inline_size |
1039 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1040 | inline_size int |
577 | fd_valid (int fd) |
1041 | fd_valid (int fd) |
578 | { |
1042 | { |
579 | #ifdef _WIN32 |
1043 | #ifdef _WIN32 |
580 | return _get_osfhandle (fd) != -1; |
1044 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
581 | #else |
1045 | #else |
582 | return fcntl (fd, F_GETFD) != -1; |
1046 | return fcntl (fd, F_GETFD) != -1; |
583 | #endif |
1047 | #endif |
584 | } |
1048 | } |
585 | |
1049 | |
… | |
… | |
589 | { |
1053 | { |
590 | int fd; |
1054 | int fd; |
591 | |
1055 | |
592 | for (fd = 0; fd < anfdmax; ++fd) |
1056 | for (fd = 0; fd < anfdmax; ++fd) |
593 | if (anfds [fd].events) |
1057 | if (anfds [fd].events) |
594 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1058 | if (!fd_valid (fd) && errno == EBADF) |
595 | fd_kill (EV_A_ fd); |
1059 | fd_kill (EV_A_ fd); |
596 | } |
1060 | } |
597 | |
1061 | |
598 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1062 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
599 | static void noinline |
1063 | static void noinline |
… | |
… | |
603 | |
1067 | |
604 | for (fd = anfdmax; fd--; ) |
1068 | for (fd = anfdmax; fd--; ) |
605 | if (anfds [fd].events) |
1069 | if (anfds [fd].events) |
606 | { |
1070 | { |
607 | fd_kill (EV_A_ fd); |
1071 | fd_kill (EV_A_ fd); |
608 | return; |
1072 | break; |
609 | } |
1073 | } |
610 | } |
1074 | } |
611 | |
1075 | |
612 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1076 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
613 | static void noinline |
1077 | static void noinline |
… | |
… | |
617 | |
1081 | |
618 | for (fd = 0; fd < anfdmax; ++fd) |
1082 | for (fd = 0; fd < anfdmax; ++fd) |
619 | if (anfds [fd].events) |
1083 | if (anfds [fd].events) |
620 | { |
1084 | { |
621 | anfds [fd].events = 0; |
1085 | anfds [fd].events = 0; |
622 | fd_change (EV_A_ fd); |
1086 | anfds [fd].emask = 0; |
|
|
1087 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
623 | } |
1088 | } |
624 | } |
1089 | } |
625 | |
1090 | |
626 | /*****************************************************************************/ |
1091 | /* used to prepare libev internal fd's */ |
627 | |
1092 | /* this is not fork-safe */ |
628 | void inline_speed |
1093 | inline_speed void |
629 | upheap (WT *heap, int k) |
|
|
630 | { |
|
|
631 | WT w = heap [k]; |
|
|
632 | |
|
|
633 | while (k && heap [k >> 1]->at > w->at) |
|
|
634 | { |
|
|
635 | heap [k] = heap [k >> 1]; |
|
|
636 | ((W)heap [k])->active = k + 1; |
|
|
637 | k >>= 1; |
|
|
638 | } |
|
|
639 | |
|
|
640 | heap [k] = w; |
|
|
641 | ((W)heap [k])->active = k + 1; |
|
|
642 | |
|
|
643 | } |
|
|
644 | |
|
|
645 | void inline_speed |
|
|
646 | downheap (WT *heap, int N, int k) |
|
|
647 | { |
|
|
648 | WT w = heap [k]; |
|
|
649 | |
|
|
650 | while (k < (N >> 1)) |
|
|
651 | { |
|
|
652 | int j = k << 1; |
|
|
653 | |
|
|
654 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
|
|
655 | ++j; |
|
|
656 | |
|
|
657 | if (w->at <= heap [j]->at) |
|
|
658 | break; |
|
|
659 | |
|
|
660 | heap [k] = heap [j]; |
|
|
661 | ((W)heap [k])->active = k + 1; |
|
|
662 | k = j; |
|
|
663 | } |
|
|
664 | |
|
|
665 | heap [k] = w; |
|
|
666 | ((W)heap [k])->active = k + 1; |
|
|
667 | } |
|
|
668 | |
|
|
669 | void inline_size |
|
|
670 | adjustheap (WT *heap, int N, int k) |
|
|
671 | { |
|
|
672 | upheap (heap, k); |
|
|
673 | downheap (heap, N, k); |
|
|
674 | } |
|
|
675 | |
|
|
676 | /*****************************************************************************/ |
|
|
677 | |
|
|
678 | typedef struct |
|
|
679 | { |
|
|
680 | WL head; |
|
|
681 | sig_atomic_t volatile gotsig; |
|
|
682 | } ANSIG; |
|
|
683 | |
|
|
684 | static ANSIG *signals; |
|
|
685 | static int signalmax; |
|
|
686 | |
|
|
687 | static int sigpipe [2]; |
|
|
688 | static sig_atomic_t volatile gotsig; |
|
|
689 | static ev_io sigev; |
|
|
690 | |
|
|
691 | void inline_size |
|
|
692 | signals_init (ANSIG *base, int count) |
|
|
693 | { |
|
|
694 | while (count--) |
|
|
695 | { |
|
|
696 | base->head = 0; |
|
|
697 | base->gotsig = 0; |
|
|
698 | |
|
|
699 | ++base; |
|
|
700 | } |
|
|
701 | } |
|
|
702 | |
|
|
703 | static void |
|
|
704 | sighandler (int signum) |
|
|
705 | { |
|
|
706 | #if _WIN32 |
|
|
707 | signal (signum, sighandler); |
|
|
708 | #endif |
|
|
709 | |
|
|
710 | signals [signum - 1].gotsig = 1; |
|
|
711 | |
|
|
712 | if (!gotsig) |
|
|
713 | { |
|
|
714 | int old_errno = errno; |
|
|
715 | gotsig = 1; |
|
|
716 | write (sigpipe [1], &signum, 1); |
|
|
717 | errno = old_errno; |
|
|
718 | } |
|
|
719 | } |
|
|
720 | |
|
|
721 | void noinline |
|
|
722 | ev_feed_signal_event (EV_P_ int signum) |
|
|
723 | { |
|
|
724 | WL w; |
|
|
725 | |
|
|
726 | #if EV_MULTIPLICITY |
|
|
727 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
728 | #endif |
|
|
729 | |
|
|
730 | --signum; |
|
|
731 | |
|
|
732 | if (signum < 0 || signum >= signalmax) |
|
|
733 | return; |
|
|
734 | |
|
|
735 | signals [signum].gotsig = 0; |
|
|
736 | |
|
|
737 | for (w = signals [signum].head; w; w = w->next) |
|
|
738 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
739 | } |
|
|
740 | |
|
|
741 | static void |
|
|
742 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
743 | { |
|
|
744 | int signum; |
|
|
745 | |
|
|
746 | read (sigpipe [0], &revents, 1); |
|
|
747 | gotsig = 0; |
|
|
748 | |
|
|
749 | for (signum = signalmax; signum--; ) |
|
|
750 | if (signals [signum].gotsig) |
|
|
751 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
752 | } |
|
|
753 | |
|
|
754 | void inline_size |
|
|
755 | fd_intern (int fd) |
1094 | fd_intern (int fd) |
756 | { |
1095 | { |
757 | #ifdef _WIN32 |
1096 | #ifdef _WIN32 |
758 | int arg = 1; |
1097 | unsigned long arg = 1; |
759 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1098 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
760 | #else |
1099 | #else |
761 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1100 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
762 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1101 | fcntl (fd, F_SETFL, O_NONBLOCK); |
763 | #endif |
1102 | #endif |
764 | } |
1103 | } |
765 | |
1104 | |
|
|
1105 | /*****************************************************************************/ |
|
|
1106 | |
|
|
1107 | /* |
|
|
1108 | * the heap functions want a real array index. array index 0 is guaranteed to not |
|
|
1109 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1110 | * the branching factor of the d-tree. |
|
|
1111 | */ |
|
|
1112 | |
|
|
1113 | /* |
|
|
1114 | * at the moment we allow libev the luxury of two heaps, |
|
|
1115 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1116 | * which is more cache-efficient. |
|
|
1117 | * the difference is about 5% with 50000+ watchers. |
|
|
1118 | */ |
|
|
1119 | #if EV_USE_4HEAP |
|
|
1120 | |
|
|
1121 | #define DHEAP 4 |
|
|
1122 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1123 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1124 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1125 | |
|
|
1126 | /* away from the root */ |
|
|
1127 | inline_speed void |
|
|
1128 | downheap (ANHE *heap, int N, int k) |
|
|
1129 | { |
|
|
1130 | ANHE he = heap [k]; |
|
|
1131 | ANHE *E = heap + N + HEAP0; |
|
|
1132 | |
|
|
1133 | for (;;) |
|
|
1134 | { |
|
|
1135 | ev_tstamp minat; |
|
|
1136 | ANHE *minpos; |
|
|
1137 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1138 | |
|
|
1139 | /* find minimum child */ |
|
|
1140 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1141 | { |
|
|
1142 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1143 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1144 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1145 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1146 | } |
|
|
1147 | else if (pos < E) |
|
|
1148 | { |
|
|
1149 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1150 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1151 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1152 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1153 | } |
|
|
1154 | else |
|
|
1155 | break; |
|
|
1156 | |
|
|
1157 | if (ANHE_at (he) <= minat) |
|
|
1158 | break; |
|
|
1159 | |
|
|
1160 | heap [k] = *minpos; |
|
|
1161 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1162 | |
|
|
1163 | k = minpos - heap; |
|
|
1164 | } |
|
|
1165 | |
|
|
1166 | heap [k] = he; |
|
|
1167 | ev_active (ANHE_w (he)) = k; |
|
|
1168 | } |
|
|
1169 | |
|
|
1170 | #else /* 4HEAP */ |
|
|
1171 | |
|
|
1172 | #define HEAP0 1 |
|
|
1173 | #define HPARENT(k) ((k) >> 1) |
|
|
1174 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1175 | |
|
|
1176 | /* away from the root */ |
|
|
1177 | inline_speed void |
|
|
1178 | downheap (ANHE *heap, int N, int k) |
|
|
1179 | { |
|
|
1180 | ANHE he = heap [k]; |
|
|
1181 | |
|
|
1182 | for (;;) |
|
|
1183 | { |
|
|
1184 | int c = k << 1; |
|
|
1185 | |
|
|
1186 | if (c >= N + HEAP0) |
|
|
1187 | break; |
|
|
1188 | |
|
|
1189 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1190 | ? 1 : 0; |
|
|
1191 | |
|
|
1192 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1193 | break; |
|
|
1194 | |
|
|
1195 | heap [k] = heap [c]; |
|
|
1196 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1197 | |
|
|
1198 | k = c; |
|
|
1199 | } |
|
|
1200 | |
|
|
1201 | heap [k] = he; |
|
|
1202 | ev_active (ANHE_w (he)) = k; |
|
|
1203 | } |
|
|
1204 | #endif |
|
|
1205 | |
|
|
1206 | /* towards the root */ |
|
|
1207 | inline_speed void |
|
|
1208 | upheap (ANHE *heap, int k) |
|
|
1209 | { |
|
|
1210 | ANHE he = heap [k]; |
|
|
1211 | |
|
|
1212 | for (;;) |
|
|
1213 | { |
|
|
1214 | int p = HPARENT (k); |
|
|
1215 | |
|
|
1216 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1217 | break; |
|
|
1218 | |
|
|
1219 | heap [k] = heap [p]; |
|
|
1220 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1221 | k = p; |
|
|
1222 | } |
|
|
1223 | |
|
|
1224 | heap [k] = he; |
|
|
1225 | ev_active (ANHE_w (he)) = k; |
|
|
1226 | } |
|
|
1227 | |
|
|
1228 | /* move an element suitably so it is in a correct place */ |
|
|
1229 | inline_size void |
|
|
1230 | adjustheap (ANHE *heap, int N, int k) |
|
|
1231 | { |
|
|
1232 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1233 | upheap (heap, k); |
|
|
1234 | else |
|
|
1235 | downheap (heap, N, k); |
|
|
1236 | } |
|
|
1237 | |
|
|
1238 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1239 | inline_size void |
|
|
1240 | reheap (ANHE *heap, int N) |
|
|
1241 | { |
|
|
1242 | int i; |
|
|
1243 | |
|
|
1244 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1245 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1246 | for (i = 0; i < N; ++i) |
|
|
1247 | upheap (heap, i + HEAP0); |
|
|
1248 | } |
|
|
1249 | |
|
|
1250 | /*****************************************************************************/ |
|
|
1251 | |
|
|
1252 | /* associate signal watchers to a signal signal */ |
|
|
1253 | typedef struct |
|
|
1254 | { |
|
|
1255 | EV_ATOMIC_T pending; |
|
|
1256 | #if EV_MULTIPLICITY |
|
|
1257 | EV_P; |
|
|
1258 | #endif |
|
|
1259 | WL head; |
|
|
1260 | } ANSIG; |
|
|
1261 | |
|
|
1262 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1263 | |
|
|
1264 | /*****************************************************************************/ |
|
|
1265 | |
|
|
1266 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1267 | |
766 | static void noinline |
1268 | static void noinline |
767 | siginit (EV_P) |
1269 | evpipe_init (EV_P) |
768 | { |
1270 | { |
|
|
1271 | if (!ev_is_active (&pipe_w)) |
|
|
1272 | { |
|
|
1273 | # if EV_USE_EVENTFD |
|
|
1274 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1275 | if (evfd < 0 && errno == EINVAL) |
|
|
1276 | evfd = eventfd (0, 0); |
|
|
1277 | |
|
|
1278 | if (evfd >= 0) |
|
|
1279 | { |
|
|
1280 | evpipe [0] = -1; |
|
|
1281 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1282 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1283 | } |
|
|
1284 | else |
|
|
1285 | # endif |
|
|
1286 | { |
|
|
1287 | while (pipe (evpipe)) |
|
|
1288 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1289 | |
769 | fd_intern (sigpipe [0]); |
1290 | fd_intern (evpipe [0]); |
770 | fd_intern (sigpipe [1]); |
1291 | fd_intern (evpipe [1]); |
|
|
1292 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1293 | } |
771 | |
1294 | |
772 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
773 | ev_io_start (EV_A_ &sigev); |
1295 | ev_io_start (EV_A_ &pipe_w); |
774 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1296 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1297 | } |
|
|
1298 | } |
|
|
1299 | |
|
|
1300 | inline_size void |
|
|
1301 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1302 | { |
|
|
1303 | if (!*flag) |
|
|
1304 | { |
|
|
1305 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1306 | char dummy; |
|
|
1307 | |
|
|
1308 | *flag = 1; |
|
|
1309 | |
|
|
1310 | #if EV_USE_EVENTFD |
|
|
1311 | if (evfd >= 0) |
|
|
1312 | { |
|
|
1313 | uint64_t counter = 1; |
|
|
1314 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1315 | } |
|
|
1316 | else |
|
|
1317 | #endif |
|
|
1318 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1319 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1320 | /* so when you think this write should be a send instead, please find out */ |
|
|
1321 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1322 | /* tell me. thank you. */ |
|
|
1323 | write (evpipe [1], &dummy, 1); |
|
|
1324 | |
|
|
1325 | errno = old_errno; |
|
|
1326 | } |
|
|
1327 | } |
|
|
1328 | |
|
|
1329 | /* called whenever the libev signal pipe */ |
|
|
1330 | /* got some events (signal, async) */ |
|
|
1331 | static void |
|
|
1332 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1333 | { |
|
|
1334 | int i; |
|
|
1335 | |
|
|
1336 | #if EV_USE_EVENTFD |
|
|
1337 | if (evfd >= 0) |
|
|
1338 | { |
|
|
1339 | uint64_t counter; |
|
|
1340 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1341 | } |
|
|
1342 | else |
|
|
1343 | #endif |
|
|
1344 | { |
|
|
1345 | char dummy; |
|
|
1346 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
|
|
1347 | read (evpipe [0], &dummy, 1); |
|
|
1348 | } |
|
|
1349 | |
|
|
1350 | if (sig_pending) |
|
|
1351 | { |
|
|
1352 | sig_pending = 0; |
|
|
1353 | |
|
|
1354 | for (i = EV_NSIG - 1; i--; ) |
|
|
1355 | if (expect_false (signals [i].pending)) |
|
|
1356 | ev_feed_signal_event (EV_A_ i + 1); |
|
|
1357 | } |
|
|
1358 | |
|
|
1359 | #if EV_ASYNC_ENABLE |
|
|
1360 | if (async_pending) |
|
|
1361 | { |
|
|
1362 | async_pending = 0; |
|
|
1363 | |
|
|
1364 | for (i = asynccnt; i--; ) |
|
|
1365 | if (asyncs [i]->sent) |
|
|
1366 | { |
|
|
1367 | asyncs [i]->sent = 0; |
|
|
1368 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1369 | } |
|
|
1370 | } |
|
|
1371 | #endif |
775 | } |
1372 | } |
776 | |
1373 | |
777 | /*****************************************************************************/ |
1374 | /*****************************************************************************/ |
778 | |
1375 | |
779 | static ev_child *childs [EV_PID_HASHSIZE]; |
1376 | static void |
|
|
1377 | ev_sighandler (int signum) |
|
|
1378 | { |
|
|
1379 | #if EV_MULTIPLICITY |
|
|
1380 | EV_P = signals [signum - 1].loop; |
|
|
1381 | #endif |
780 | |
1382 | |
781 | #ifndef _WIN32 |
1383 | #ifdef _WIN32 |
|
|
1384 | signal (signum, ev_sighandler); |
|
|
1385 | #endif |
|
|
1386 | |
|
|
1387 | signals [signum - 1].pending = 1; |
|
|
1388 | evpipe_write (EV_A_ &sig_pending); |
|
|
1389 | } |
|
|
1390 | |
|
|
1391 | void noinline |
|
|
1392 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1393 | { |
|
|
1394 | WL w; |
|
|
1395 | |
|
|
1396 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1397 | return; |
|
|
1398 | |
|
|
1399 | --signum; |
|
|
1400 | |
|
|
1401 | #if EV_MULTIPLICITY |
|
|
1402 | /* it is permissible to try to feed a signal to the wrong loop */ |
|
|
1403 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
|
|
1404 | |
|
|
1405 | if (expect_false (signals [signum].loop != EV_A)) |
|
|
1406 | return; |
|
|
1407 | #endif |
|
|
1408 | |
|
|
1409 | signals [signum].pending = 0; |
|
|
1410 | |
|
|
1411 | for (w = signals [signum].head; w; w = w->next) |
|
|
1412 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1413 | } |
|
|
1414 | |
|
|
1415 | #if EV_USE_SIGNALFD |
|
|
1416 | static void |
|
|
1417 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1418 | { |
|
|
1419 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1420 | |
|
|
1421 | for (;;) |
|
|
1422 | { |
|
|
1423 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1424 | |
|
|
1425 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1426 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1427 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1428 | |
|
|
1429 | if (res < (ssize_t)sizeof (si)) |
|
|
1430 | break; |
|
|
1431 | } |
|
|
1432 | } |
|
|
1433 | #endif |
|
|
1434 | |
|
|
1435 | #endif |
|
|
1436 | |
|
|
1437 | /*****************************************************************************/ |
|
|
1438 | |
|
|
1439 | #if EV_CHILD_ENABLE |
|
|
1440 | static WL childs [EV_PID_HASHSIZE]; |
782 | |
1441 | |
783 | static ev_signal childev; |
1442 | static ev_signal childev; |
784 | |
1443 | |
785 | void inline_speed |
1444 | #ifndef WIFCONTINUED |
|
|
1445 | # define WIFCONTINUED(status) 0 |
|
|
1446 | #endif |
|
|
1447 | |
|
|
1448 | /* handle a single child status event */ |
|
|
1449 | inline_speed void |
786 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1450 | child_reap (EV_P_ int chain, int pid, int status) |
787 | { |
1451 | { |
788 | ev_child *w; |
1452 | ev_child *w; |
|
|
1453 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
789 | |
1454 | |
790 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1455 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1456 | { |
791 | if (w->pid == pid || !w->pid) |
1457 | if ((w->pid == pid || !w->pid) |
|
|
1458 | && (!traced || (w->flags & 1))) |
792 | { |
1459 | { |
793 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1460 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
794 | w->rpid = pid; |
1461 | w->rpid = pid; |
795 | w->rstatus = status; |
1462 | w->rstatus = status; |
796 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1463 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
797 | } |
1464 | } |
|
|
1465 | } |
798 | } |
1466 | } |
799 | |
1467 | |
800 | #ifndef WCONTINUED |
1468 | #ifndef WCONTINUED |
801 | # define WCONTINUED 0 |
1469 | # define WCONTINUED 0 |
802 | #endif |
1470 | #endif |
803 | |
1471 | |
|
|
1472 | /* called on sigchld etc., calls waitpid */ |
804 | static void |
1473 | static void |
805 | childcb (EV_P_ ev_signal *sw, int revents) |
1474 | childcb (EV_P_ ev_signal *sw, int revents) |
806 | { |
1475 | { |
807 | int pid, status; |
1476 | int pid, status; |
808 | |
1477 | |
… | |
… | |
811 | if (!WCONTINUED |
1480 | if (!WCONTINUED |
812 | || errno != EINVAL |
1481 | || errno != EINVAL |
813 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1482 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
814 | return; |
1483 | return; |
815 | |
1484 | |
816 | /* make sure we are called again until all childs have been reaped */ |
1485 | /* make sure we are called again until all children have been reaped */ |
817 | /* we need to do it this way so that the callback gets called before we continue */ |
1486 | /* we need to do it this way so that the callback gets called before we continue */ |
818 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1487 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
819 | |
1488 | |
820 | child_reap (EV_A_ sw, pid, pid, status); |
1489 | child_reap (EV_A_ pid, pid, status); |
821 | if (EV_PID_HASHSIZE > 1) |
1490 | if ((EV_PID_HASHSIZE) > 1) |
822 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1491 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
823 | } |
1492 | } |
824 | |
1493 | |
825 | #endif |
1494 | #endif |
826 | |
1495 | |
827 | /*****************************************************************************/ |
1496 | /*****************************************************************************/ |
828 | |
1497 | |
|
|
1498 | #if EV_USE_IOCP |
|
|
1499 | # include "ev_iocp.c" |
|
|
1500 | #endif |
829 | #if EV_USE_PORT |
1501 | #if EV_USE_PORT |
830 | # include "ev_port.c" |
1502 | # include "ev_port.c" |
831 | #endif |
1503 | #endif |
832 | #if EV_USE_KQUEUE |
1504 | #if EV_USE_KQUEUE |
833 | # include "ev_kqueue.c" |
1505 | # include "ev_kqueue.c" |
… | |
… | |
889 | /* kqueue is borked on everything but netbsd apparently */ |
1561 | /* kqueue is borked on everything but netbsd apparently */ |
890 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1562 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
891 | flags &= ~EVBACKEND_KQUEUE; |
1563 | flags &= ~EVBACKEND_KQUEUE; |
892 | #endif |
1564 | #endif |
893 | #ifdef __APPLE__ |
1565 | #ifdef __APPLE__ |
894 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1566 | /* only select works correctly on that "unix-certified" platform */ |
895 | flags &= ~EVBACKEND_POLL; |
1567 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1568 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1569 | #endif |
|
|
1570 | #ifdef __FreeBSD__ |
|
|
1571 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
896 | #endif |
1572 | #endif |
897 | |
1573 | |
898 | return flags; |
1574 | return flags; |
899 | } |
1575 | } |
900 | |
1576 | |
901 | unsigned int |
1577 | unsigned int |
902 | ev_embeddable_backends (void) |
1578 | ev_embeddable_backends (void) |
903 | { |
1579 | { |
904 | return EVBACKEND_EPOLL |
1580 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
905 | | EVBACKEND_KQUEUE |
1581 | |
906 | | EVBACKEND_PORT; |
1582 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1583 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
1584 | flags &= ~EVBACKEND_EPOLL; |
|
|
1585 | |
|
|
1586 | return flags; |
907 | } |
1587 | } |
908 | |
1588 | |
909 | unsigned int |
1589 | unsigned int |
910 | ev_backend (EV_P) |
1590 | ev_backend (EV_P) |
911 | { |
1591 | { |
912 | return backend; |
1592 | return backend; |
913 | } |
1593 | } |
914 | |
1594 | |
|
|
1595 | #if EV_FEATURE_API |
915 | unsigned int |
1596 | unsigned int |
916 | ev_loop_count (EV_P) |
1597 | ev_iteration (EV_P) |
917 | { |
1598 | { |
918 | return loop_count; |
1599 | return loop_count; |
919 | } |
1600 | } |
920 | |
1601 | |
|
|
1602 | unsigned int |
|
|
1603 | ev_depth (EV_P) |
|
|
1604 | { |
|
|
1605 | return loop_depth; |
|
|
1606 | } |
|
|
1607 | |
|
|
1608 | void |
|
|
1609 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1610 | { |
|
|
1611 | io_blocktime = interval; |
|
|
1612 | } |
|
|
1613 | |
|
|
1614 | void |
|
|
1615 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1616 | { |
|
|
1617 | timeout_blocktime = interval; |
|
|
1618 | } |
|
|
1619 | |
|
|
1620 | void |
|
|
1621 | ev_set_userdata (EV_P_ void *data) |
|
|
1622 | { |
|
|
1623 | userdata = data; |
|
|
1624 | } |
|
|
1625 | |
|
|
1626 | void * |
|
|
1627 | ev_userdata (EV_P) |
|
|
1628 | { |
|
|
1629 | return userdata; |
|
|
1630 | } |
|
|
1631 | |
|
|
1632 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1633 | { |
|
|
1634 | invoke_cb = invoke_pending_cb; |
|
|
1635 | } |
|
|
1636 | |
|
|
1637 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1638 | { |
|
|
1639 | release_cb = release; |
|
|
1640 | acquire_cb = acquire; |
|
|
1641 | } |
|
|
1642 | #endif |
|
|
1643 | |
|
|
1644 | /* initialise a loop structure, must be zero-initialised */ |
921 | static void noinline |
1645 | static void noinline |
922 | loop_init (EV_P_ unsigned int flags) |
1646 | loop_init (EV_P_ unsigned int flags) |
923 | { |
1647 | { |
924 | if (!backend) |
1648 | if (!backend) |
925 | { |
1649 | { |
|
|
1650 | #if EV_USE_REALTIME |
|
|
1651 | if (!have_realtime) |
|
|
1652 | { |
|
|
1653 | struct timespec ts; |
|
|
1654 | |
|
|
1655 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1656 | have_realtime = 1; |
|
|
1657 | } |
|
|
1658 | #endif |
|
|
1659 | |
926 | #if EV_USE_MONOTONIC |
1660 | #if EV_USE_MONOTONIC |
|
|
1661 | if (!have_monotonic) |
927 | { |
1662 | { |
928 | struct timespec ts; |
1663 | struct timespec ts; |
|
|
1664 | |
929 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1665 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
930 | have_monotonic = 1; |
1666 | have_monotonic = 1; |
931 | } |
1667 | } |
932 | #endif |
1668 | #endif |
933 | |
|
|
934 | ev_rt_now = ev_time (); |
|
|
935 | mn_now = get_clock (); |
|
|
936 | now_floor = mn_now; |
|
|
937 | rtmn_diff = ev_rt_now - mn_now; |
|
|
938 | |
1669 | |
939 | /* pid check not overridable via env */ |
1670 | /* pid check not overridable via env */ |
940 | #ifndef _WIN32 |
1671 | #ifndef _WIN32 |
941 | if (flags & EVFLAG_FORKCHECK) |
1672 | if (flags & EVFLAG_FORKCHECK) |
942 | curpid = getpid (); |
1673 | curpid = getpid (); |
… | |
… | |
945 | if (!(flags & EVFLAG_NOENV) |
1676 | if (!(flags & EVFLAG_NOENV) |
946 | && !enable_secure () |
1677 | && !enable_secure () |
947 | && getenv ("LIBEV_FLAGS")) |
1678 | && getenv ("LIBEV_FLAGS")) |
948 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1679 | flags = atoi (getenv ("LIBEV_FLAGS")); |
949 | |
1680 | |
|
|
1681 | ev_rt_now = ev_time (); |
|
|
1682 | mn_now = get_clock (); |
|
|
1683 | now_floor = mn_now; |
|
|
1684 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1685 | #if EV_FEATURE_API |
|
|
1686 | invoke_cb = ev_invoke_pending; |
|
|
1687 | #endif |
|
|
1688 | |
|
|
1689 | io_blocktime = 0.; |
|
|
1690 | timeout_blocktime = 0.; |
|
|
1691 | backend = 0; |
|
|
1692 | backend_fd = -1; |
|
|
1693 | sig_pending = 0; |
|
|
1694 | #if EV_ASYNC_ENABLE |
|
|
1695 | async_pending = 0; |
|
|
1696 | #endif |
|
|
1697 | #if EV_USE_INOTIFY |
|
|
1698 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
1699 | #endif |
|
|
1700 | #if EV_USE_SIGNALFD |
|
|
1701 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
1702 | #endif |
|
|
1703 | |
950 | if (!(flags & 0x0000ffffUL)) |
1704 | if (!(flags & 0x0000ffffU)) |
951 | flags |= ev_recommended_backends (); |
1705 | flags |= ev_recommended_backends (); |
952 | |
1706 | |
953 | backend = 0; |
|
|
954 | backend_fd = -1; |
|
|
955 | #if EV_USE_INOTIFY |
1707 | #if EV_USE_IOCP |
956 | fs_fd = -2; |
1708 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
957 | #endif |
1709 | #endif |
958 | |
|
|
959 | #if EV_USE_PORT |
1710 | #if EV_USE_PORT |
960 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1711 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
961 | #endif |
1712 | #endif |
962 | #if EV_USE_KQUEUE |
1713 | #if EV_USE_KQUEUE |
963 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1714 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
970 | #endif |
1721 | #endif |
971 | #if EV_USE_SELECT |
1722 | #if EV_USE_SELECT |
972 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1723 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
973 | #endif |
1724 | #endif |
974 | |
1725 | |
|
|
1726 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1727 | |
|
|
1728 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
975 | ev_init (&sigev, sigcb); |
1729 | ev_init (&pipe_w, pipecb); |
976 | ev_set_priority (&sigev, EV_MAXPRI); |
1730 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1731 | #endif |
977 | } |
1732 | } |
978 | } |
1733 | } |
979 | |
1734 | |
980 | static void noinline |
1735 | /* free up a loop structure */ |
|
|
1736 | void |
981 | loop_destroy (EV_P) |
1737 | ev_loop_destroy (EV_P) |
982 | { |
1738 | { |
983 | int i; |
1739 | int i; |
|
|
1740 | |
|
|
1741 | #if EV_CHILD_ENABLE |
|
|
1742 | if (ev_is_active (&childev)) |
|
|
1743 | { |
|
|
1744 | ev_ref (EV_A); /* child watcher */ |
|
|
1745 | ev_signal_stop (EV_A_ &childev); |
|
|
1746 | } |
|
|
1747 | #endif |
|
|
1748 | |
|
|
1749 | if (ev_is_active (&pipe_w)) |
|
|
1750 | { |
|
|
1751 | /*ev_ref (EV_A);*/ |
|
|
1752 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
|
|
1753 | |
|
|
1754 | #if EV_USE_EVENTFD |
|
|
1755 | if (evfd >= 0) |
|
|
1756 | close (evfd); |
|
|
1757 | #endif |
|
|
1758 | |
|
|
1759 | if (evpipe [0] >= 0) |
|
|
1760 | { |
|
|
1761 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1762 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1763 | } |
|
|
1764 | } |
|
|
1765 | |
|
|
1766 | #if EV_USE_SIGNALFD |
|
|
1767 | if (ev_is_active (&sigfd_w)) |
|
|
1768 | close (sigfd); |
|
|
1769 | #endif |
984 | |
1770 | |
985 | #if EV_USE_INOTIFY |
1771 | #if EV_USE_INOTIFY |
986 | if (fs_fd >= 0) |
1772 | if (fs_fd >= 0) |
987 | close (fs_fd); |
1773 | close (fs_fd); |
988 | #endif |
1774 | #endif |
989 | |
1775 | |
990 | if (backend_fd >= 0) |
1776 | if (backend_fd >= 0) |
991 | close (backend_fd); |
1777 | close (backend_fd); |
992 | |
1778 | |
|
|
1779 | #if EV_USE_IOCP |
|
|
1780 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1781 | #endif |
993 | #if EV_USE_PORT |
1782 | #if EV_USE_PORT |
994 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1783 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
995 | #endif |
1784 | #endif |
996 | #if EV_USE_KQUEUE |
1785 | #if EV_USE_KQUEUE |
997 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1786 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1012 | #if EV_IDLE_ENABLE |
1801 | #if EV_IDLE_ENABLE |
1013 | array_free (idle, [i]); |
1802 | array_free (idle, [i]); |
1014 | #endif |
1803 | #endif |
1015 | } |
1804 | } |
1016 | |
1805 | |
|
|
1806 | ev_free (anfds); anfds = 0; anfdmax = 0; |
|
|
1807 | |
1017 | /* have to use the microsoft-never-gets-it-right macro */ |
1808 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1809 | array_free (rfeed, EMPTY); |
1018 | array_free (fdchange, EMPTY); |
1810 | array_free (fdchange, EMPTY); |
1019 | array_free (timer, EMPTY); |
1811 | array_free (timer, EMPTY); |
1020 | #if EV_PERIODIC_ENABLE |
1812 | #if EV_PERIODIC_ENABLE |
1021 | array_free (periodic, EMPTY); |
1813 | array_free (periodic, EMPTY); |
1022 | #endif |
1814 | #endif |
|
|
1815 | #if EV_FORK_ENABLE |
|
|
1816 | array_free (fork, EMPTY); |
|
|
1817 | #endif |
|
|
1818 | #if EV_CLEANUP_ENABLE |
|
|
1819 | array_free (cleanup, EMPTY); |
|
|
1820 | #endif |
1023 | array_free (prepare, EMPTY); |
1821 | array_free (prepare, EMPTY); |
1024 | array_free (check, EMPTY); |
1822 | array_free (check, EMPTY); |
|
|
1823 | #if EV_ASYNC_ENABLE |
|
|
1824 | array_free (async, EMPTY); |
|
|
1825 | #endif |
1025 | |
1826 | |
1026 | backend = 0; |
1827 | backend = 0; |
1027 | } |
|
|
1028 | |
1828 | |
|
|
1829 | #if EV_MULTIPLICITY |
|
|
1830 | if (ev_is_default_loop (EV_A)) |
|
|
1831 | #endif |
|
|
1832 | ev_default_loop_ptr = 0; |
|
|
1833 | #if EV_MULTIPLICITY |
|
|
1834 | else |
|
|
1835 | ev_free (EV_A); |
|
|
1836 | #endif |
|
|
1837 | } |
|
|
1838 | |
|
|
1839 | #if EV_USE_INOTIFY |
1029 | void inline_size infy_fork (EV_P); |
1840 | inline_size void infy_fork (EV_P); |
|
|
1841 | #endif |
1030 | |
1842 | |
1031 | void inline_size |
1843 | inline_size void |
1032 | loop_fork (EV_P) |
1844 | loop_fork (EV_P) |
1033 | { |
1845 | { |
1034 | #if EV_USE_PORT |
1846 | #if EV_USE_PORT |
1035 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1847 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1036 | #endif |
1848 | #endif |
… | |
… | |
1042 | #endif |
1854 | #endif |
1043 | #if EV_USE_INOTIFY |
1855 | #if EV_USE_INOTIFY |
1044 | infy_fork (EV_A); |
1856 | infy_fork (EV_A); |
1045 | #endif |
1857 | #endif |
1046 | |
1858 | |
1047 | if (ev_is_active (&sigev)) |
1859 | if (ev_is_active (&pipe_w)) |
1048 | { |
1860 | { |
1049 | /* default loop */ |
1861 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1862 | /* while we modify the fd vars */ |
|
|
1863 | sig_pending = 1; |
|
|
1864 | #if EV_ASYNC_ENABLE |
|
|
1865 | async_pending = 1; |
|
|
1866 | #endif |
1050 | |
1867 | |
1051 | ev_ref (EV_A); |
1868 | ev_ref (EV_A); |
1052 | ev_io_stop (EV_A_ &sigev); |
1869 | ev_io_stop (EV_A_ &pipe_w); |
1053 | close (sigpipe [0]); |
|
|
1054 | close (sigpipe [1]); |
|
|
1055 | |
1870 | |
1056 | while (pipe (sigpipe)) |
1871 | #if EV_USE_EVENTFD |
1057 | syserr ("(libev) error creating pipe"); |
1872 | if (evfd >= 0) |
|
|
1873 | close (evfd); |
|
|
1874 | #endif |
1058 | |
1875 | |
|
|
1876 | if (evpipe [0] >= 0) |
|
|
1877 | { |
|
|
1878 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1879 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1880 | } |
|
|
1881 | |
|
|
1882 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1059 | siginit (EV_A); |
1883 | evpipe_init (EV_A); |
|
|
1884 | /* now iterate over everything, in case we missed something */ |
|
|
1885 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1886 | #endif |
1060 | } |
1887 | } |
1061 | |
1888 | |
1062 | postfork = 0; |
1889 | postfork = 0; |
1063 | } |
1890 | } |
|
|
1891 | |
|
|
1892 | #if EV_MULTIPLICITY |
|
|
1893 | |
|
|
1894 | struct ev_loop * |
|
|
1895 | ev_loop_new (unsigned int flags) |
|
|
1896 | { |
|
|
1897 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1898 | |
|
|
1899 | memset (EV_A, 0, sizeof (struct ev_loop)); |
|
|
1900 | loop_init (EV_A_ flags); |
|
|
1901 | |
|
|
1902 | if (ev_backend (EV_A)) |
|
|
1903 | return EV_A; |
|
|
1904 | |
|
|
1905 | ev_free (EV_A); |
|
|
1906 | return 0; |
|
|
1907 | } |
|
|
1908 | |
|
|
1909 | #endif /* multiplicity */ |
|
|
1910 | |
|
|
1911 | #if EV_VERIFY |
|
|
1912 | static void noinline |
|
|
1913 | verify_watcher (EV_P_ W w) |
|
|
1914 | { |
|
|
1915 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1916 | |
|
|
1917 | if (w->pending) |
|
|
1918 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1919 | } |
|
|
1920 | |
|
|
1921 | static void noinline |
|
|
1922 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1923 | { |
|
|
1924 | int i; |
|
|
1925 | |
|
|
1926 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1927 | { |
|
|
1928 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1929 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1930 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1931 | |
|
|
1932 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1933 | } |
|
|
1934 | } |
|
|
1935 | |
|
|
1936 | static void noinline |
|
|
1937 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1938 | { |
|
|
1939 | while (cnt--) |
|
|
1940 | { |
|
|
1941 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1942 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1943 | } |
|
|
1944 | } |
|
|
1945 | #endif |
|
|
1946 | |
|
|
1947 | #if EV_FEATURE_API |
|
|
1948 | void |
|
|
1949 | ev_verify (EV_P) |
|
|
1950 | { |
|
|
1951 | #if EV_VERIFY |
|
|
1952 | int i; |
|
|
1953 | WL w; |
|
|
1954 | |
|
|
1955 | assert (activecnt >= -1); |
|
|
1956 | |
|
|
1957 | assert (fdchangemax >= fdchangecnt); |
|
|
1958 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1959 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1960 | |
|
|
1961 | assert (anfdmax >= 0); |
|
|
1962 | for (i = 0; i < anfdmax; ++i) |
|
|
1963 | for (w = anfds [i].head; w; w = w->next) |
|
|
1964 | { |
|
|
1965 | verify_watcher (EV_A_ (W)w); |
|
|
1966 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1967 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1968 | } |
|
|
1969 | |
|
|
1970 | assert (timermax >= timercnt); |
|
|
1971 | verify_heap (EV_A_ timers, timercnt); |
|
|
1972 | |
|
|
1973 | #if EV_PERIODIC_ENABLE |
|
|
1974 | assert (periodicmax >= periodiccnt); |
|
|
1975 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1976 | #endif |
|
|
1977 | |
|
|
1978 | for (i = NUMPRI; i--; ) |
|
|
1979 | { |
|
|
1980 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1981 | #if EV_IDLE_ENABLE |
|
|
1982 | assert (idleall >= 0); |
|
|
1983 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1984 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1985 | #endif |
|
|
1986 | } |
|
|
1987 | |
|
|
1988 | #if EV_FORK_ENABLE |
|
|
1989 | assert (forkmax >= forkcnt); |
|
|
1990 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1991 | #endif |
|
|
1992 | |
|
|
1993 | #if EV_CLEANUP_ENABLE |
|
|
1994 | assert (cleanupmax >= cleanupcnt); |
|
|
1995 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
1996 | #endif |
|
|
1997 | |
|
|
1998 | #if EV_ASYNC_ENABLE |
|
|
1999 | assert (asyncmax >= asynccnt); |
|
|
2000 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
2001 | #endif |
|
|
2002 | |
|
|
2003 | #if EV_PREPARE_ENABLE |
|
|
2004 | assert (preparemax >= preparecnt); |
|
|
2005 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2006 | #endif |
|
|
2007 | |
|
|
2008 | #if EV_CHECK_ENABLE |
|
|
2009 | assert (checkmax >= checkcnt); |
|
|
2010 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2011 | #endif |
|
|
2012 | |
|
|
2013 | # if 0 |
|
|
2014 | #if EV_CHILD_ENABLE |
|
|
2015 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2016 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2017 | #endif |
|
|
2018 | # endif |
|
|
2019 | #endif |
|
|
2020 | } |
|
|
2021 | #endif |
1064 | |
2022 | |
1065 | #if EV_MULTIPLICITY |
2023 | #if EV_MULTIPLICITY |
1066 | struct ev_loop * |
2024 | struct ev_loop * |
1067 | ev_loop_new (unsigned int flags) |
|
|
1068 | { |
|
|
1069 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1070 | |
|
|
1071 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1072 | |
|
|
1073 | loop_init (EV_A_ flags); |
|
|
1074 | |
|
|
1075 | if (ev_backend (EV_A)) |
|
|
1076 | return loop; |
|
|
1077 | |
|
|
1078 | return 0; |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | void |
|
|
1082 | ev_loop_destroy (EV_P) |
|
|
1083 | { |
|
|
1084 | loop_destroy (EV_A); |
|
|
1085 | ev_free (loop); |
|
|
1086 | } |
|
|
1087 | |
|
|
1088 | void |
|
|
1089 | ev_loop_fork (EV_P) |
|
|
1090 | { |
|
|
1091 | postfork = 1; |
|
|
1092 | } |
|
|
1093 | |
|
|
1094 | #endif |
|
|
1095 | |
|
|
1096 | #if EV_MULTIPLICITY |
|
|
1097 | struct ev_loop * |
|
|
1098 | ev_default_loop_init (unsigned int flags) |
|
|
1099 | #else |
2025 | #else |
1100 | int |
2026 | int |
|
|
2027 | #endif |
1101 | ev_default_loop (unsigned int flags) |
2028 | ev_default_loop (unsigned int flags) |
1102 | #endif |
|
|
1103 | { |
2029 | { |
1104 | if (sigpipe [0] == sigpipe [1]) |
|
|
1105 | if (pipe (sigpipe)) |
|
|
1106 | return 0; |
|
|
1107 | |
|
|
1108 | if (!ev_default_loop_ptr) |
2030 | if (!ev_default_loop_ptr) |
1109 | { |
2031 | { |
1110 | #if EV_MULTIPLICITY |
2032 | #if EV_MULTIPLICITY |
1111 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2033 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1112 | #else |
2034 | #else |
1113 | ev_default_loop_ptr = 1; |
2035 | ev_default_loop_ptr = 1; |
1114 | #endif |
2036 | #endif |
1115 | |
2037 | |
1116 | loop_init (EV_A_ flags); |
2038 | loop_init (EV_A_ flags); |
1117 | |
2039 | |
1118 | if (ev_backend (EV_A)) |
2040 | if (ev_backend (EV_A)) |
1119 | { |
2041 | { |
1120 | siginit (EV_A); |
2042 | #if EV_CHILD_ENABLE |
1121 | |
|
|
1122 | #ifndef _WIN32 |
|
|
1123 | ev_signal_init (&childev, childcb, SIGCHLD); |
2043 | ev_signal_init (&childev, childcb, SIGCHLD); |
1124 | ev_set_priority (&childev, EV_MAXPRI); |
2044 | ev_set_priority (&childev, EV_MAXPRI); |
1125 | ev_signal_start (EV_A_ &childev); |
2045 | ev_signal_start (EV_A_ &childev); |
1126 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2046 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1127 | #endif |
2047 | #endif |
… | |
… | |
1132 | |
2052 | |
1133 | return ev_default_loop_ptr; |
2053 | return ev_default_loop_ptr; |
1134 | } |
2054 | } |
1135 | |
2055 | |
1136 | void |
2056 | void |
1137 | ev_default_destroy (void) |
2057 | ev_loop_fork (EV_P) |
1138 | { |
2058 | { |
1139 | #if EV_MULTIPLICITY |
2059 | postfork = 1; /* must be in line with ev_default_fork */ |
1140 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1141 | #endif |
|
|
1142 | |
|
|
1143 | #ifndef _WIN32 |
|
|
1144 | ev_ref (EV_A); /* child watcher */ |
|
|
1145 | ev_signal_stop (EV_A_ &childev); |
|
|
1146 | #endif |
|
|
1147 | |
|
|
1148 | ev_ref (EV_A); /* signal watcher */ |
|
|
1149 | ev_io_stop (EV_A_ &sigev); |
|
|
1150 | |
|
|
1151 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1152 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1153 | |
|
|
1154 | loop_destroy (EV_A); |
|
|
1155 | } |
|
|
1156 | |
|
|
1157 | void |
|
|
1158 | ev_default_fork (void) |
|
|
1159 | { |
|
|
1160 | #if EV_MULTIPLICITY |
|
|
1161 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1162 | #endif |
|
|
1163 | |
|
|
1164 | if (backend) |
|
|
1165 | postfork = 1; |
|
|
1166 | } |
2060 | } |
1167 | |
2061 | |
1168 | /*****************************************************************************/ |
2062 | /*****************************************************************************/ |
1169 | |
2063 | |
1170 | void |
2064 | void |
1171 | ev_invoke (EV_P_ void *w, int revents) |
2065 | ev_invoke (EV_P_ void *w, int revents) |
1172 | { |
2066 | { |
1173 | EV_CB_INVOKE ((W)w, revents); |
2067 | EV_CB_INVOKE ((W)w, revents); |
1174 | } |
2068 | } |
1175 | |
2069 | |
1176 | void inline_speed |
2070 | unsigned int |
1177 | call_pending (EV_P) |
2071 | ev_pending_count (EV_P) |
|
|
2072 | { |
|
|
2073 | int pri; |
|
|
2074 | unsigned int count = 0; |
|
|
2075 | |
|
|
2076 | for (pri = NUMPRI; pri--; ) |
|
|
2077 | count += pendingcnt [pri]; |
|
|
2078 | |
|
|
2079 | return count; |
|
|
2080 | } |
|
|
2081 | |
|
|
2082 | void noinline |
|
|
2083 | ev_invoke_pending (EV_P) |
1178 | { |
2084 | { |
1179 | int pri; |
2085 | int pri; |
1180 | |
2086 | |
1181 | for (pri = NUMPRI; pri--; ) |
2087 | for (pri = NUMPRI; pri--; ) |
1182 | while (pendingcnt [pri]) |
2088 | while (pendingcnt [pri]) |
1183 | { |
2089 | { |
1184 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2090 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1185 | |
2091 | |
1186 | if (expect_true (p->w)) |
|
|
1187 | { |
|
|
1188 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2092 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2093 | /* ^ this is no longer true, as pending_w could be here */ |
1189 | |
2094 | |
1190 | p->w->pending = 0; |
2095 | p->w->pending = 0; |
1191 | EV_CB_INVOKE (p->w, p->events); |
2096 | EV_CB_INVOKE (p->w, p->events); |
1192 | } |
2097 | EV_FREQUENT_CHECK; |
1193 | } |
2098 | } |
1194 | } |
2099 | } |
1195 | |
2100 | |
1196 | void inline_size |
|
|
1197 | timers_reify (EV_P) |
|
|
1198 | { |
|
|
1199 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1200 | { |
|
|
1201 | ev_timer *w = timers [0]; |
|
|
1202 | |
|
|
1203 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1204 | |
|
|
1205 | /* first reschedule or stop timer */ |
|
|
1206 | if (w->repeat) |
|
|
1207 | { |
|
|
1208 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1209 | |
|
|
1210 | ((WT)w)->at += w->repeat; |
|
|
1211 | if (((WT)w)->at < mn_now) |
|
|
1212 | ((WT)w)->at = mn_now; |
|
|
1213 | |
|
|
1214 | downheap ((WT *)timers, timercnt, 0); |
|
|
1215 | } |
|
|
1216 | else |
|
|
1217 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1218 | |
|
|
1219 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1220 | } |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | #if EV_PERIODIC_ENABLE |
|
|
1224 | void inline_size |
|
|
1225 | periodics_reify (EV_P) |
|
|
1226 | { |
|
|
1227 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1228 | { |
|
|
1229 | ev_periodic *w = periodics [0]; |
|
|
1230 | |
|
|
1231 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1232 | |
|
|
1233 | /* first reschedule or stop timer */ |
|
|
1234 | if (w->reschedule_cb) |
|
|
1235 | { |
|
|
1236 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1237 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1238 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1239 | } |
|
|
1240 | else if (w->interval) |
|
|
1241 | { |
|
|
1242 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
|
|
1243 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1244 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1245 | } |
|
|
1246 | else |
|
|
1247 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1248 | |
|
|
1249 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1250 | } |
|
|
1251 | } |
|
|
1252 | |
|
|
1253 | static void noinline |
|
|
1254 | periodics_reschedule (EV_P) |
|
|
1255 | { |
|
|
1256 | int i; |
|
|
1257 | |
|
|
1258 | /* adjust periodics after time jump */ |
|
|
1259 | for (i = 0; i < periodiccnt; ++i) |
|
|
1260 | { |
|
|
1261 | ev_periodic *w = periodics [i]; |
|
|
1262 | |
|
|
1263 | if (w->reschedule_cb) |
|
|
1264 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1265 | else if (w->interval) |
|
|
1266 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1267 | } |
|
|
1268 | |
|
|
1269 | /* now rebuild the heap */ |
|
|
1270 | for (i = periodiccnt >> 1; i--; ) |
|
|
1271 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1272 | } |
|
|
1273 | #endif |
|
|
1274 | |
|
|
1275 | #if EV_IDLE_ENABLE |
2101 | #if EV_IDLE_ENABLE |
1276 | void inline_size |
2102 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2103 | /* only when higher priorities are idle" logic */ |
|
|
2104 | inline_size void |
1277 | idle_reify (EV_P) |
2105 | idle_reify (EV_P) |
1278 | { |
2106 | { |
1279 | if (expect_false (idleall)) |
2107 | if (expect_false (idleall)) |
1280 | { |
2108 | { |
1281 | int pri; |
2109 | int pri; |
… | |
… | |
1293 | } |
2121 | } |
1294 | } |
2122 | } |
1295 | } |
2123 | } |
1296 | #endif |
2124 | #endif |
1297 | |
2125 | |
1298 | int inline_size |
2126 | /* make timers pending */ |
1299 | time_update_monotonic (EV_P) |
2127 | inline_size void |
|
|
2128 | timers_reify (EV_P) |
1300 | { |
2129 | { |
|
|
2130 | EV_FREQUENT_CHECK; |
|
|
2131 | |
|
|
2132 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2133 | { |
|
|
2134 | do |
|
|
2135 | { |
|
|
2136 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2137 | |
|
|
2138 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2139 | |
|
|
2140 | /* first reschedule or stop timer */ |
|
|
2141 | if (w->repeat) |
|
|
2142 | { |
|
|
2143 | ev_at (w) += w->repeat; |
|
|
2144 | if (ev_at (w) < mn_now) |
|
|
2145 | ev_at (w) = mn_now; |
|
|
2146 | |
|
|
2147 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2148 | |
|
|
2149 | ANHE_at_cache (timers [HEAP0]); |
|
|
2150 | downheap (timers, timercnt, HEAP0); |
|
|
2151 | } |
|
|
2152 | else |
|
|
2153 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2154 | |
|
|
2155 | EV_FREQUENT_CHECK; |
|
|
2156 | feed_reverse (EV_A_ (W)w); |
|
|
2157 | } |
|
|
2158 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2159 | |
|
|
2160 | feed_reverse_done (EV_A_ EV_TIMER); |
|
|
2161 | } |
|
|
2162 | } |
|
|
2163 | |
|
|
2164 | #if EV_PERIODIC_ENABLE |
|
|
2165 | /* make periodics pending */ |
|
|
2166 | inline_size void |
|
|
2167 | periodics_reify (EV_P) |
|
|
2168 | { |
|
|
2169 | EV_FREQUENT_CHECK; |
|
|
2170 | |
|
|
2171 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2172 | { |
|
|
2173 | int feed_count = 0; |
|
|
2174 | |
|
|
2175 | do |
|
|
2176 | { |
|
|
2177 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2178 | |
|
|
2179 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2180 | |
|
|
2181 | /* first reschedule or stop timer */ |
|
|
2182 | if (w->reschedule_cb) |
|
|
2183 | { |
|
|
2184 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2185 | |
|
|
2186 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2187 | |
|
|
2188 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2189 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2190 | } |
|
|
2191 | else if (w->interval) |
|
|
2192 | { |
|
|
2193 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2194 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2195 | /* this might happen because of floating point inexactness */ |
|
|
2196 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2197 | { |
|
|
2198 | ev_at (w) += w->interval; |
|
|
2199 | |
|
|
2200 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2201 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2202 | /* has effectively asked to get triggered more often than possible */ |
|
|
2203 | if (ev_at (w) < ev_rt_now) |
|
|
2204 | ev_at (w) = ev_rt_now; |
|
|
2205 | } |
|
|
2206 | |
|
|
2207 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2208 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2209 | } |
|
|
2210 | else |
|
|
2211 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2212 | |
|
|
2213 | EV_FREQUENT_CHECK; |
|
|
2214 | feed_reverse (EV_A_ (W)w); |
|
|
2215 | } |
|
|
2216 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2217 | |
|
|
2218 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2219 | } |
|
|
2220 | } |
|
|
2221 | |
|
|
2222 | /* simply recalculate all periodics */ |
|
|
2223 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
2224 | static void noinline |
|
|
2225 | periodics_reschedule (EV_P) |
|
|
2226 | { |
|
|
2227 | int i; |
|
|
2228 | |
|
|
2229 | /* adjust periodics after time jump */ |
|
|
2230 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2231 | { |
|
|
2232 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2233 | |
|
|
2234 | if (w->reschedule_cb) |
|
|
2235 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2236 | else if (w->interval) |
|
|
2237 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2238 | |
|
|
2239 | ANHE_at_cache (periodics [i]); |
|
|
2240 | } |
|
|
2241 | |
|
|
2242 | reheap (periodics, periodiccnt); |
|
|
2243 | } |
|
|
2244 | #endif |
|
|
2245 | |
|
|
2246 | /* adjust all timers by a given offset */ |
|
|
2247 | static void noinline |
|
|
2248 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2249 | { |
|
|
2250 | int i; |
|
|
2251 | |
|
|
2252 | for (i = 0; i < timercnt; ++i) |
|
|
2253 | { |
|
|
2254 | ANHE *he = timers + i + HEAP0; |
|
|
2255 | ANHE_w (*he)->at += adjust; |
|
|
2256 | ANHE_at_cache (*he); |
|
|
2257 | } |
|
|
2258 | } |
|
|
2259 | |
|
|
2260 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2261 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2262 | inline_speed void |
|
|
2263 | time_update (EV_P_ ev_tstamp max_block) |
|
|
2264 | { |
|
|
2265 | #if EV_USE_MONOTONIC |
|
|
2266 | if (expect_true (have_monotonic)) |
|
|
2267 | { |
|
|
2268 | int i; |
|
|
2269 | ev_tstamp odiff = rtmn_diff; |
|
|
2270 | |
1301 | mn_now = get_clock (); |
2271 | mn_now = get_clock (); |
1302 | |
2272 | |
|
|
2273 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
2274 | /* interpolate in the meantime */ |
1303 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
2275 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1304 | { |
2276 | { |
1305 | ev_rt_now = rtmn_diff + mn_now; |
2277 | ev_rt_now = rtmn_diff + mn_now; |
1306 | return 0; |
2278 | return; |
1307 | } |
2279 | } |
1308 | else |
2280 | |
1309 | { |
|
|
1310 | now_floor = mn_now; |
2281 | now_floor = mn_now; |
1311 | ev_rt_now = ev_time (); |
2282 | ev_rt_now = ev_time (); |
1312 | return 1; |
|
|
1313 | } |
|
|
1314 | } |
|
|
1315 | |
2283 | |
1316 | void inline_size |
2284 | /* loop a few times, before making important decisions. |
1317 | time_update (EV_P) |
2285 | * on the choice of "4": one iteration isn't enough, |
1318 | { |
2286 | * in case we get preempted during the calls to |
1319 | int i; |
2287 | * ev_time and get_clock. a second call is almost guaranteed |
1320 | |
2288 | * to succeed in that case, though. and looping a few more times |
1321 | #if EV_USE_MONOTONIC |
2289 | * doesn't hurt either as we only do this on time-jumps or |
1322 | if (expect_true (have_monotonic)) |
2290 | * in the unlikely event of having been preempted here. |
1323 | { |
2291 | */ |
1324 | if (time_update_monotonic (EV_A)) |
2292 | for (i = 4; --i; ) |
1325 | { |
2293 | { |
1326 | ev_tstamp odiff = rtmn_diff; |
|
|
1327 | |
|
|
1328 | /* loop a few times, before making important decisions. |
|
|
1329 | * on the choice of "4": one iteration isn't enough, |
|
|
1330 | * in case we get preempted during the calls to |
|
|
1331 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1332 | * to succeed in that case, though. and looping a few more times |
|
|
1333 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1334 | * in the unlikely event of having been preempted here. |
|
|
1335 | */ |
|
|
1336 | for (i = 4; --i; ) |
|
|
1337 | { |
|
|
1338 | rtmn_diff = ev_rt_now - mn_now; |
2294 | rtmn_diff = ev_rt_now - mn_now; |
1339 | |
2295 | |
1340 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2296 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1341 | return; /* all is well */ |
2297 | return; /* all is well */ |
1342 | |
2298 | |
1343 | ev_rt_now = ev_time (); |
2299 | ev_rt_now = ev_time (); |
1344 | mn_now = get_clock (); |
2300 | mn_now = get_clock (); |
1345 | now_floor = mn_now; |
2301 | now_floor = mn_now; |
1346 | } |
2302 | } |
1347 | |
2303 | |
|
|
2304 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2305 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1348 | # if EV_PERIODIC_ENABLE |
2306 | # if EV_PERIODIC_ENABLE |
1349 | periodics_reschedule (EV_A); |
2307 | periodics_reschedule (EV_A); |
1350 | # endif |
2308 | # endif |
1351 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1352 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1353 | } |
|
|
1354 | } |
2309 | } |
1355 | else |
2310 | else |
1356 | #endif |
2311 | #endif |
1357 | { |
2312 | { |
1358 | ev_rt_now = ev_time (); |
2313 | ev_rt_now = ev_time (); |
1359 | |
2314 | |
1360 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
2315 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1361 | { |
2316 | { |
|
|
2317 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2318 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1362 | #if EV_PERIODIC_ENABLE |
2319 | #if EV_PERIODIC_ENABLE |
1363 | periodics_reschedule (EV_A); |
2320 | periodics_reschedule (EV_A); |
1364 | #endif |
2321 | #endif |
1365 | |
|
|
1366 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1367 | for (i = 0; i < timercnt; ++i) |
|
|
1368 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1369 | } |
2322 | } |
1370 | |
2323 | |
1371 | mn_now = ev_rt_now; |
2324 | mn_now = ev_rt_now; |
1372 | } |
2325 | } |
1373 | } |
2326 | } |
1374 | |
2327 | |
1375 | void |
2328 | void |
1376 | ev_ref (EV_P) |
|
|
1377 | { |
|
|
1378 | ++activecnt; |
|
|
1379 | } |
|
|
1380 | |
|
|
1381 | void |
|
|
1382 | ev_unref (EV_P) |
|
|
1383 | { |
|
|
1384 | --activecnt; |
|
|
1385 | } |
|
|
1386 | |
|
|
1387 | static int loop_done; |
|
|
1388 | |
|
|
1389 | void |
|
|
1390 | ev_loop (EV_P_ int flags) |
2329 | ev_run (EV_P_ int flags) |
1391 | { |
2330 | { |
1392 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2331 | #if EV_FEATURE_API |
1393 | ? EVUNLOOP_ONE |
2332 | ++loop_depth; |
1394 | : EVUNLOOP_CANCEL; |
2333 | #endif |
1395 | |
2334 | |
|
|
2335 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2336 | |
|
|
2337 | loop_done = EVBREAK_CANCEL; |
|
|
2338 | |
1396 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2339 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1397 | |
2340 | |
1398 | do |
2341 | do |
1399 | { |
2342 | { |
|
|
2343 | #if EV_VERIFY >= 2 |
|
|
2344 | ev_verify (EV_A); |
|
|
2345 | #endif |
|
|
2346 | |
1400 | #ifndef _WIN32 |
2347 | #ifndef _WIN32 |
1401 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2348 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1402 | if (expect_false (getpid () != curpid)) |
2349 | if (expect_false (getpid () != curpid)) |
1403 | { |
2350 | { |
1404 | curpid = getpid (); |
2351 | curpid = getpid (); |
… | |
… | |
1410 | /* we might have forked, so queue fork handlers */ |
2357 | /* we might have forked, so queue fork handlers */ |
1411 | if (expect_false (postfork)) |
2358 | if (expect_false (postfork)) |
1412 | if (forkcnt) |
2359 | if (forkcnt) |
1413 | { |
2360 | { |
1414 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2361 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1415 | call_pending (EV_A); |
2362 | EV_INVOKE_PENDING; |
1416 | } |
2363 | } |
1417 | #endif |
2364 | #endif |
1418 | |
2365 | |
|
|
2366 | #if EV_PREPARE_ENABLE |
1419 | /* queue check watchers (and execute them) */ |
2367 | /* queue prepare watchers (and execute them) */ |
1420 | if (expect_false (preparecnt)) |
2368 | if (expect_false (preparecnt)) |
1421 | { |
2369 | { |
1422 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2370 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1423 | call_pending (EV_A); |
2371 | EV_INVOKE_PENDING; |
1424 | } |
2372 | } |
|
|
2373 | #endif |
1425 | |
2374 | |
1426 | if (expect_false (!activecnt)) |
2375 | if (expect_false (loop_done)) |
1427 | break; |
2376 | break; |
1428 | |
2377 | |
1429 | /* we might have forked, so reify kernel state if necessary */ |
2378 | /* we might have forked, so reify kernel state if necessary */ |
1430 | if (expect_false (postfork)) |
2379 | if (expect_false (postfork)) |
1431 | loop_fork (EV_A); |
2380 | loop_fork (EV_A); |
… | |
… | |
1433 | /* update fd-related kernel structures */ |
2382 | /* update fd-related kernel structures */ |
1434 | fd_reify (EV_A); |
2383 | fd_reify (EV_A); |
1435 | |
2384 | |
1436 | /* calculate blocking time */ |
2385 | /* calculate blocking time */ |
1437 | { |
2386 | { |
1438 | ev_tstamp block; |
2387 | ev_tstamp waittime = 0.; |
|
|
2388 | ev_tstamp sleeptime = 0.; |
1439 | |
2389 | |
|
|
2390 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2391 | ev_tstamp prev_mn_now = mn_now; |
|
|
2392 | |
|
|
2393 | /* update time to cancel out callback processing overhead */ |
|
|
2394 | time_update (EV_A_ 1e100); |
|
|
2395 | |
1440 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
2396 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
1441 | block = 0.; /* do not block at all */ |
|
|
1442 | else |
|
|
1443 | { |
2397 | { |
1444 | /* update time to cancel out callback processing overhead */ |
|
|
1445 | #if EV_USE_MONOTONIC |
|
|
1446 | if (expect_true (have_monotonic)) |
|
|
1447 | time_update_monotonic (EV_A); |
|
|
1448 | else |
|
|
1449 | #endif |
|
|
1450 | { |
|
|
1451 | ev_rt_now = ev_time (); |
|
|
1452 | mn_now = ev_rt_now; |
|
|
1453 | } |
|
|
1454 | |
|
|
1455 | block = MAX_BLOCKTIME; |
2398 | waittime = MAX_BLOCKTIME; |
1456 | |
2399 | |
1457 | if (timercnt) |
2400 | if (timercnt) |
1458 | { |
2401 | { |
1459 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2402 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1460 | if (block > to) block = to; |
2403 | if (waittime > to) waittime = to; |
1461 | } |
2404 | } |
1462 | |
2405 | |
1463 | #if EV_PERIODIC_ENABLE |
2406 | #if EV_PERIODIC_ENABLE |
1464 | if (periodiccnt) |
2407 | if (periodiccnt) |
1465 | { |
2408 | { |
1466 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2409 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1467 | if (block > to) block = to; |
2410 | if (waittime > to) waittime = to; |
1468 | } |
2411 | } |
1469 | #endif |
2412 | #endif |
1470 | |
2413 | |
|
|
2414 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
|
|
2415 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2416 | waittime = timeout_blocktime; |
|
|
2417 | |
|
|
2418 | /* extra check because io_blocktime is commonly 0 */ |
1471 | if (expect_false (block < 0.)) block = 0.; |
2419 | if (expect_false (io_blocktime)) |
|
|
2420 | { |
|
|
2421 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2422 | |
|
|
2423 | if (sleeptime > waittime - backend_fudge) |
|
|
2424 | sleeptime = waittime - backend_fudge; |
|
|
2425 | |
|
|
2426 | if (expect_true (sleeptime > 0.)) |
|
|
2427 | { |
|
|
2428 | ev_sleep (sleeptime); |
|
|
2429 | waittime -= sleeptime; |
|
|
2430 | } |
|
|
2431 | } |
1472 | } |
2432 | } |
1473 | |
2433 | |
|
|
2434 | #if EV_FEATURE_API |
1474 | ++loop_count; |
2435 | ++loop_count; |
|
|
2436 | #endif |
|
|
2437 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1475 | backend_poll (EV_A_ block); |
2438 | backend_poll (EV_A_ waittime); |
|
|
2439 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
2440 | |
|
|
2441 | /* update ev_rt_now, do magic */ |
|
|
2442 | time_update (EV_A_ waittime + sleeptime); |
1476 | } |
2443 | } |
1477 | |
|
|
1478 | /* update ev_rt_now, do magic */ |
|
|
1479 | time_update (EV_A); |
|
|
1480 | |
2444 | |
1481 | /* queue pending timers and reschedule them */ |
2445 | /* queue pending timers and reschedule them */ |
1482 | timers_reify (EV_A); /* relative timers called last */ |
2446 | timers_reify (EV_A); /* relative timers called last */ |
1483 | #if EV_PERIODIC_ENABLE |
2447 | #if EV_PERIODIC_ENABLE |
1484 | periodics_reify (EV_A); /* absolute timers called first */ |
2448 | periodics_reify (EV_A); /* absolute timers called first */ |
… | |
… | |
1487 | #if EV_IDLE_ENABLE |
2451 | #if EV_IDLE_ENABLE |
1488 | /* queue idle watchers unless other events are pending */ |
2452 | /* queue idle watchers unless other events are pending */ |
1489 | idle_reify (EV_A); |
2453 | idle_reify (EV_A); |
1490 | #endif |
2454 | #endif |
1491 | |
2455 | |
|
|
2456 | #if EV_CHECK_ENABLE |
1492 | /* queue check watchers, to be executed first */ |
2457 | /* queue check watchers, to be executed first */ |
1493 | if (expect_false (checkcnt)) |
2458 | if (expect_false (checkcnt)) |
1494 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2459 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2460 | #endif |
1495 | |
2461 | |
1496 | call_pending (EV_A); |
2462 | EV_INVOKE_PENDING; |
1497 | |
|
|
1498 | } |
2463 | } |
1499 | while (expect_true (activecnt && !loop_done)); |
2464 | while (expect_true ( |
|
|
2465 | activecnt |
|
|
2466 | && !loop_done |
|
|
2467 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
|
|
2468 | )); |
1500 | |
2469 | |
1501 | if (loop_done == EVUNLOOP_ONE) |
2470 | if (loop_done == EVBREAK_ONE) |
1502 | loop_done = EVUNLOOP_CANCEL; |
2471 | loop_done = EVBREAK_CANCEL; |
1503 | } |
|
|
1504 | |
2472 | |
|
|
2473 | #if EV_FEATURE_API |
|
|
2474 | --loop_depth; |
|
|
2475 | #endif |
|
|
2476 | } |
|
|
2477 | |
1505 | void |
2478 | void |
1506 | ev_unloop (EV_P_ int how) |
2479 | ev_break (EV_P_ int how) |
1507 | { |
2480 | { |
1508 | loop_done = how; |
2481 | loop_done = how; |
1509 | } |
2482 | } |
1510 | |
2483 | |
|
|
2484 | void |
|
|
2485 | ev_ref (EV_P) |
|
|
2486 | { |
|
|
2487 | ++activecnt; |
|
|
2488 | } |
|
|
2489 | |
|
|
2490 | void |
|
|
2491 | ev_unref (EV_P) |
|
|
2492 | { |
|
|
2493 | --activecnt; |
|
|
2494 | } |
|
|
2495 | |
|
|
2496 | void |
|
|
2497 | ev_now_update (EV_P) |
|
|
2498 | { |
|
|
2499 | time_update (EV_A_ 1e100); |
|
|
2500 | } |
|
|
2501 | |
|
|
2502 | void |
|
|
2503 | ev_suspend (EV_P) |
|
|
2504 | { |
|
|
2505 | ev_now_update (EV_A); |
|
|
2506 | } |
|
|
2507 | |
|
|
2508 | void |
|
|
2509 | ev_resume (EV_P) |
|
|
2510 | { |
|
|
2511 | ev_tstamp mn_prev = mn_now; |
|
|
2512 | |
|
|
2513 | ev_now_update (EV_A); |
|
|
2514 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2515 | #if EV_PERIODIC_ENABLE |
|
|
2516 | /* TODO: really do this? */ |
|
|
2517 | periodics_reschedule (EV_A); |
|
|
2518 | #endif |
|
|
2519 | } |
|
|
2520 | |
1511 | /*****************************************************************************/ |
2521 | /*****************************************************************************/ |
|
|
2522 | /* singly-linked list management, used when the expected list length is short */ |
1512 | |
2523 | |
1513 | void inline_size |
2524 | inline_size void |
1514 | wlist_add (WL *head, WL elem) |
2525 | wlist_add (WL *head, WL elem) |
1515 | { |
2526 | { |
1516 | elem->next = *head; |
2527 | elem->next = *head; |
1517 | *head = elem; |
2528 | *head = elem; |
1518 | } |
2529 | } |
1519 | |
2530 | |
1520 | void inline_size |
2531 | inline_size void |
1521 | wlist_del (WL *head, WL elem) |
2532 | wlist_del (WL *head, WL elem) |
1522 | { |
2533 | { |
1523 | while (*head) |
2534 | while (*head) |
1524 | { |
2535 | { |
1525 | if (*head == elem) |
2536 | if (expect_true (*head == elem)) |
1526 | { |
2537 | { |
1527 | *head = elem->next; |
2538 | *head = elem->next; |
1528 | return; |
2539 | break; |
1529 | } |
2540 | } |
1530 | |
2541 | |
1531 | head = &(*head)->next; |
2542 | head = &(*head)->next; |
1532 | } |
2543 | } |
1533 | } |
2544 | } |
1534 | |
2545 | |
1535 | void inline_speed |
2546 | /* internal, faster, version of ev_clear_pending */ |
|
|
2547 | inline_speed void |
1536 | clear_pending (EV_P_ W w) |
2548 | clear_pending (EV_P_ W w) |
1537 | { |
2549 | { |
1538 | if (w->pending) |
2550 | if (w->pending) |
1539 | { |
2551 | { |
1540 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2552 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1541 | w->pending = 0; |
2553 | w->pending = 0; |
1542 | } |
2554 | } |
1543 | } |
2555 | } |
1544 | |
2556 | |
1545 | int |
2557 | int |
1546 | ev_clear_pending (EV_P_ void *w) |
2558 | ev_clear_pending (EV_P_ void *w) |
1547 | { |
2559 | { |
1548 | W w_ = (W)w; |
2560 | W w_ = (W)w; |
1549 | int pending = w_->pending; |
2561 | int pending = w_->pending; |
1550 | |
2562 | |
1551 | if (!pending) |
2563 | if (expect_true (pending)) |
|
|
2564 | { |
|
|
2565 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2566 | p->w = (W)&pending_w; |
|
|
2567 | w_->pending = 0; |
|
|
2568 | return p->events; |
|
|
2569 | } |
|
|
2570 | else |
1552 | return 0; |
2571 | return 0; |
1553 | |
|
|
1554 | w_->pending = 0; |
|
|
1555 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1556 | p->w = 0; |
|
|
1557 | |
|
|
1558 | return p->events; |
|
|
1559 | } |
2572 | } |
1560 | |
2573 | |
1561 | void inline_size |
2574 | inline_size void |
1562 | pri_adjust (EV_P_ W w) |
2575 | pri_adjust (EV_P_ W w) |
1563 | { |
2576 | { |
1564 | int pri = w->priority; |
2577 | int pri = ev_priority (w); |
1565 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2578 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1566 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2579 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1567 | w->priority = pri; |
2580 | ev_set_priority (w, pri); |
1568 | } |
2581 | } |
1569 | |
2582 | |
1570 | void inline_speed |
2583 | inline_speed void |
1571 | ev_start (EV_P_ W w, int active) |
2584 | ev_start (EV_P_ W w, int active) |
1572 | { |
2585 | { |
1573 | pri_adjust (EV_A_ w); |
2586 | pri_adjust (EV_A_ w); |
1574 | w->active = active; |
2587 | w->active = active; |
1575 | ev_ref (EV_A); |
2588 | ev_ref (EV_A); |
1576 | } |
2589 | } |
1577 | |
2590 | |
1578 | void inline_size |
2591 | inline_size void |
1579 | ev_stop (EV_P_ W w) |
2592 | ev_stop (EV_P_ W w) |
1580 | { |
2593 | { |
1581 | ev_unref (EV_A); |
2594 | ev_unref (EV_A); |
1582 | w->active = 0; |
2595 | w->active = 0; |
1583 | } |
2596 | } |
1584 | |
2597 | |
1585 | /*****************************************************************************/ |
2598 | /*****************************************************************************/ |
1586 | |
2599 | |
1587 | void |
2600 | void noinline |
1588 | ev_io_start (EV_P_ ev_io *w) |
2601 | ev_io_start (EV_P_ ev_io *w) |
1589 | { |
2602 | { |
1590 | int fd = w->fd; |
2603 | int fd = w->fd; |
1591 | |
2604 | |
1592 | if (expect_false (ev_is_active (w))) |
2605 | if (expect_false (ev_is_active (w))) |
1593 | return; |
2606 | return; |
1594 | |
2607 | |
1595 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2608 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2609 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2610 | |
|
|
2611 | EV_FREQUENT_CHECK; |
1596 | |
2612 | |
1597 | ev_start (EV_A_ (W)w, 1); |
2613 | ev_start (EV_A_ (W)w, 1); |
1598 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2614 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1599 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2615 | wlist_add (&anfds[fd].head, (WL)w); |
1600 | |
2616 | |
1601 | fd_change (EV_A_ fd); |
2617 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1602 | } |
2618 | w->events &= ~EV__IOFDSET; |
1603 | |
2619 | |
1604 | void |
2620 | EV_FREQUENT_CHECK; |
|
|
2621 | } |
|
|
2622 | |
|
|
2623 | void noinline |
1605 | ev_io_stop (EV_P_ ev_io *w) |
2624 | ev_io_stop (EV_P_ ev_io *w) |
1606 | { |
2625 | { |
1607 | clear_pending (EV_A_ (W)w); |
2626 | clear_pending (EV_A_ (W)w); |
1608 | if (expect_false (!ev_is_active (w))) |
2627 | if (expect_false (!ev_is_active (w))) |
1609 | return; |
2628 | return; |
1610 | |
2629 | |
1611 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2630 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1612 | |
2631 | |
|
|
2632 | EV_FREQUENT_CHECK; |
|
|
2633 | |
1613 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2634 | wlist_del (&anfds[w->fd].head, (WL)w); |
1614 | ev_stop (EV_A_ (W)w); |
2635 | ev_stop (EV_A_ (W)w); |
1615 | |
2636 | |
1616 | fd_change (EV_A_ w->fd); |
2637 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
1617 | } |
|
|
1618 | |
2638 | |
1619 | void |
2639 | EV_FREQUENT_CHECK; |
|
|
2640 | } |
|
|
2641 | |
|
|
2642 | void noinline |
1620 | ev_timer_start (EV_P_ ev_timer *w) |
2643 | ev_timer_start (EV_P_ ev_timer *w) |
1621 | { |
2644 | { |
1622 | if (expect_false (ev_is_active (w))) |
2645 | if (expect_false (ev_is_active (w))) |
1623 | return; |
2646 | return; |
1624 | |
2647 | |
1625 | ((WT)w)->at += mn_now; |
2648 | ev_at (w) += mn_now; |
1626 | |
2649 | |
1627 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2650 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1628 | |
2651 | |
|
|
2652 | EV_FREQUENT_CHECK; |
|
|
2653 | |
|
|
2654 | ++timercnt; |
1629 | ev_start (EV_A_ (W)w, ++timercnt); |
2655 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1630 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2656 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1631 | timers [timercnt - 1] = w; |
2657 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1632 | upheap ((WT *)timers, timercnt - 1); |
2658 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2659 | upheap (timers, ev_active (w)); |
1633 | |
2660 | |
|
|
2661 | EV_FREQUENT_CHECK; |
|
|
2662 | |
1634 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2663 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1635 | } |
2664 | } |
1636 | |
2665 | |
1637 | void |
2666 | void noinline |
1638 | ev_timer_stop (EV_P_ ev_timer *w) |
2667 | ev_timer_stop (EV_P_ ev_timer *w) |
1639 | { |
2668 | { |
1640 | clear_pending (EV_A_ (W)w); |
2669 | clear_pending (EV_A_ (W)w); |
1641 | if (expect_false (!ev_is_active (w))) |
2670 | if (expect_false (!ev_is_active (w))) |
1642 | return; |
2671 | return; |
1643 | |
2672 | |
1644 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2673 | EV_FREQUENT_CHECK; |
1645 | |
2674 | |
1646 | { |
2675 | { |
1647 | int active = ((W)w)->active; |
2676 | int active = ev_active (w); |
1648 | |
2677 | |
|
|
2678 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2679 | |
|
|
2680 | --timercnt; |
|
|
2681 | |
1649 | if (expect_true (--active < --timercnt)) |
2682 | if (expect_true (active < timercnt + HEAP0)) |
1650 | { |
2683 | { |
1651 | timers [active] = timers [timercnt]; |
2684 | timers [active] = timers [timercnt + HEAP0]; |
1652 | adjustheap ((WT *)timers, timercnt, active); |
2685 | adjustheap (timers, timercnt, active); |
1653 | } |
2686 | } |
1654 | } |
2687 | } |
1655 | |
2688 | |
1656 | ((WT)w)->at -= mn_now; |
2689 | ev_at (w) -= mn_now; |
1657 | |
2690 | |
1658 | ev_stop (EV_A_ (W)w); |
2691 | ev_stop (EV_A_ (W)w); |
1659 | } |
|
|
1660 | |
2692 | |
1661 | void |
2693 | EV_FREQUENT_CHECK; |
|
|
2694 | } |
|
|
2695 | |
|
|
2696 | void noinline |
1662 | ev_timer_again (EV_P_ ev_timer *w) |
2697 | ev_timer_again (EV_P_ ev_timer *w) |
1663 | { |
2698 | { |
|
|
2699 | EV_FREQUENT_CHECK; |
|
|
2700 | |
1664 | if (ev_is_active (w)) |
2701 | if (ev_is_active (w)) |
1665 | { |
2702 | { |
1666 | if (w->repeat) |
2703 | if (w->repeat) |
1667 | { |
2704 | { |
1668 | ((WT)w)->at = mn_now + w->repeat; |
2705 | ev_at (w) = mn_now + w->repeat; |
|
|
2706 | ANHE_at_cache (timers [ev_active (w)]); |
1669 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2707 | adjustheap (timers, timercnt, ev_active (w)); |
1670 | } |
2708 | } |
1671 | else |
2709 | else |
1672 | ev_timer_stop (EV_A_ w); |
2710 | ev_timer_stop (EV_A_ w); |
1673 | } |
2711 | } |
1674 | else if (w->repeat) |
2712 | else if (w->repeat) |
1675 | { |
2713 | { |
1676 | w->at = w->repeat; |
2714 | ev_at (w) = w->repeat; |
1677 | ev_timer_start (EV_A_ w); |
2715 | ev_timer_start (EV_A_ w); |
1678 | } |
2716 | } |
|
|
2717 | |
|
|
2718 | EV_FREQUENT_CHECK; |
|
|
2719 | } |
|
|
2720 | |
|
|
2721 | ev_tstamp |
|
|
2722 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2723 | { |
|
|
2724 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1679 | } |
2725 | } |
1680 | |
2726 | |
1681 | #if EV_PERIODIC_ENABLE |
2727 | #if EV_PERIODIC_ENABLE |
1682 | void |
2728 | void noinline |
1683 | ev_periodic_start (EV_P_ ev_periodic *w) |
2729 | ev_periodic_start (EV_P_ ev_periodic *w) |
1684 | { |
2730 | { |
1685 | if (expect_false (ev_is_active (w))) |
2731 | if (expect_false (ev_is_active (w))) |
1686 | return; |
2732 | return; |
1687 | |
2733 | |
1688 | if (w->reschedule_cb) |
2734 | if (w->reschedule_cb) |
1689 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2735 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1690 | else if (w->interval) |
2736 | else if (w->interval) |
1691 | { |
2737 | { |
1692 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2738 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1693 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2739 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1694 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2740 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1695 | } |
2741 | } |
|
|
2742 | else |
|
|
2743 | ev_at (w) = w->offset; |
1696 | |
2744 | |
|
|
2745 | EV_FREQUENT_CHECK; |
|
|
2746 | |
|
|
2747 | ++periodiccnt; |
1697 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2748 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1698 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2749 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1699 | periodics [periodiccnt - 1] = w; |
2750 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1700 | upheap ((WT *)periodics, periodiccnt - 1); |
2751 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2752 | upheap (periodics, ev_active (w)); |
1701 | |
2753 | |
|
|
2754 | EV_FREQUENT_CHECK; |
|
|
2755 | |
1702 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2756 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1703 | } |
2757 | } |
1704 | |
2758 | |
1705 | void |
2759 | void noinline |
1706 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2760 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1707 | { |
2761 | { |
1708 | clear_pending (EV_A_ (W)w); |
2762 | clear_pending (EV_A_ (W)w); |
1709 | if (expect_false (!ev_is_active (w))) |
2763 | if (expect_false (!ev_is_active (w))) |
1710 | return; |
2764 | return; |
1711 | |
2765 | |
1712 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2766 | EV_FREQUENT_CHECK; |
1713 | |
2767 | |
1714 | { |
2768 | { |
1715 | int active = ((W)w)->active; |
2769 | int active = ev_active (w); |
1716 | |
2770 | |
|
|
2771 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2772 | |
|
|
2773 | --periodiccnt; |
|
|
2774 | |
1717 | if (expect_true (--active < --periodiccnt)) |
2775 | if (expect_true (active < periodiccnt + HEAP0)) |
1718 | { |
2776 | { |
1719 | periodics [active] = periodics [periodiccnt]; |
2777 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1720 | adjustheap ((WT *)periodics, periodiccnt, active); |
2778 | adjustheap (periodics, periodiccnt, active); |
1721 | } |
2779 | } |
1722 | } |
2780 | } |
1723 | |
2781 | |
1724 | ev_stop (EV_A_ (W)w); |
2782 | ev_stop (EV_A_ (W)w); |
1725 | } |
|
|
1726 | |
2783 | |
1727 | void |
2784 | EV_FREQUENT_CHECK; |
|
|
2785 | } |
|
|
2786 | |
|
|
2787 | void noinline |
1728 | ev_periodic_again (EV_P_ ev_periodic *w) |
2788 | ev_periodic_again (EV_P_ ev_periodic *w) |
1729 | { |
2789 | { |
1730 | /* TODO: use adjustheap and recalculation */ |
2790 | /* TODO: use adjustheap and recalculation */ |
1731 | ev_periodic_stop (EV_A_ w); |
2791 | ev_periodic_stop (EV_A_ w); |
1732 | ev_periodic_start (EV_A_ w); |
2792 | ev_periodic_start (EV_A_ w); |
… | |
… | |
1735 | |
2795 | |
1736 | #ifndef SA_RESTART |
2796 | #ifndef SA_RESTART |
1737 | # define SA_RESTART 0 |
2797 | # define SA_RESTART 0 |
1738 | #endif |
2798 | #endif |
1739 | |
2799 | |
1740 | void |
2800 | #if EV_SIGNAL_ENABLE |
|
|
2801 | |
|
|
2802 | void noinline |
1741 | ev_signal_start (EV_P_ ev_signal *w) |
2803 | ev_signal_start (EV_P_ ev_signal *w) |
1742 | { |
2804 | { |
1743 | #if EV_MULTIPLICITY |
|
|
1744 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1745 | #endif |
|
|
1746 | if (expect_false (ev_is_active (w))) |
2805 | if (expect_false (ev_is_active (w))) |
1747 | return; |
2806 | return; |
1748 | |
2807 | |
1749 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2808 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
|
|
2809 | |
|
|
2810 | #if EV_MULTIPLICITY |
|
|
2811 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2812 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
2813 | |
|
|
2814 | signals [w->signum - 1].loop = EV_A; |
|
|
2815 | #endif |
|
|
2816 | |
|
|
2817 | EV_FREQUENT_CHECK; |
|
|
2818 | |
|
|
2819 | #if EV_USE_SIGNALFD |
|
|
2820 | if (sigfd == -2) |
|
|
2821 | { |
|
|
2822 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
|
|
2823 | if (sigfd < 0 && errno == EINVAL) |
|
|
2824 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
|
|
2825 | |
|
|
2826 | if (sigfd >= 0) |
|
|
2827 | { |
|
|
2828 | fd_intern (sigfd); /* doing it twice will not hurt */ |
|
|
2829 | |
|
|
2830 | sigemptyset (&sigfd_set); |
|
|
2831 | |
|
|
2832 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2833 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2834 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2835 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2836 | } |
|
|
2837 | } |
|
|
2838 | |
|
|
2839 | if (sigfd >= 0) |
|
|
2840 | { |
|
|
2841 | /* TODO: check .head */ |
|
|
2842 | sigaddset (&sigfd_set, w->signum); |
|
|
2843 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2844 | |
|
|
2845 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2846 | } |
|
|
2847 | #endif |
1750 | |
2848 | |
1751 | ev_start (EV_A_ (W)w, 1); |
2849 | ev_start (EV_A_ (W)w, 1); |
1752 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1753 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2850 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1754 | |
2851 | |
1755 | if (!((WL)w)->next) |
2852 | if (!((WL)w)->next) |
|
|
2853 | # if EV_USE_SIGNALFD |
|
|
2854 | if (sigfd < 0) /*TODO*/ |
|
|
2855 | # endif |
1756 | { |
2856 | { |
1757 | #if _WIN32 |
2857 | # ifdef _WIN32 |
|
|
2858 | evpipe_init (EV_A); |
|
|
2859 | |
1758 | signal (w->signum, sighandler); |
2860 | signal (w->signum, ev_sighandler); |
1759 | #else |
2861 | # else |
1760 | struct sigaction sa; |
2862 | struct sigaction sa; |
|
|
2863 | |
|
|
2864 | evpipe_init (EV_A); |
|
|
2865 | |
1761 | sa.sa_handler = sighandler; |
2866 | sa.sa_handler = ev_sighandler; |
1762 | sigfillset (&sa.sa_mask); |
2867 | sigfillset (&sa.sa_mask); |
1763 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2868 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1764 | sigaction (w->signum, &sa, 0); |
2869 | sigaction (w->signum, &sa, 0); |
|
|
2870 | |
|
|
2871 | sigemptyset (&sa.sa_mask); |
|
|
2872 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2873 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
1765 | #endif |
2874 | #endif |
1766 | } |
2875 | } |
1767 | } |
|
|
1768 | |
2876 | |
1769 | void |
2877 | EV_FREQUENT_CHECK; |
|
|
2878 | } |
|
|
2879 | |
|
|
2880 | void noinline |
1770 | ev_signal_stop (EV_P_ ev_signal *w) |
2881 | ev_signal_stop (EV_P_ ev_signal *w) |
1771 | { |
2882 | { |
1772 | clear_pending (EV_A_ (W)w); |
2883 | clear_pending (EV_A_ (W)w); |
1773 | if (expect_false (!ev_is_active (w))) |
2884 | if (expect_false (!ev_is_active (w))) |
1774 | return; |
2885 | return; |
1775 | |
2886 | |
|
|
2887 | EV_FREQUENT_CHECK; |
|
|
2888 | |
1776 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2889 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1777 | ev_stop (EV_A_ (W)w); |
2890 | ev_stop (EV_A_ (W)w); |
1778 | |
2891 | |
1779 | if (!signals [w->signum - 1].head) |
2892 | if (!signals [w->signum - 1].head) |
|
|
2893 | { |
|
|
2894 | #if EV_MULTIPLICITY |
|
|
2895 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2896 | #endif |
|
|
2897 | #if EV_USE_SIGNALFD |
|
|
2898 | if (sigfd >= 0) |
|
|
2899 | { |
|
|
2900 | sigset_t ss; |
|
|
2901 | |
|
|
2902 | sigemptyset (&ss); |
|
|
2903 | sigaddset (&ss, w->signum); |
|
|
2904 | sigdelset (&sigfd_set, w->signum); |
|
|
2905 | |
|
|
2906 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2907 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2908 | } |
|
|
2909 | else |
|
|
2910 | #endif |
1780 | signal (w->signum, SIG_DFL); |
2911 | signal (w->signum, SIG_DFL); |
|
|
2912 | } |
|
|
2913 | |
|
|
2914 | EV_FREQUENT_CHECK; |
1781 | } |
2915 | } |
|
|
2916 | |
|
|
2917 | #endif |
|
|
2918 | |
|
|
2919 | #if EV_CHILD_ENABLE |
1782 | |
2920 | |
1783 | void |
2921 | void |
1784 | ev_child_start (EV_P_ ev_child *w) |
2922 | ev_child_start (EV_P_ ev_child *w) |
1785 | { |
2923 | { |
1786 | #if EV_MULTIPLICITY |
2924 | #if EV_MULTIPLICITY |
1787 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2925 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1788 | #endif |
2926 | #endif |
1789 | if (expect_false (ev_is_active (w))) |
2927 | if (expect_false (ev_is_active (w))) |
1790 | return; |
2928 | return; |
1791 | |
2929 | |
|
|
2930 | EV_FREQUENT_CHECK; |
|
|
2931 | |
1792 | ev_start (EV_A_ (W)w, 1); |
2932 | ev_start (EV_A_ (W)w, 1); |
1793 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2933 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
2934 | |
|
|
2935 | EV_FREQUENT_CHECK; |
1794 | } |
2936 | } |
1795 | |
2937 | |
1796 | void |
2938 | void |
1797 | ev_child_stop (EV_P_ ev_child *w) |
2939 | ev_child_stop (EV_P_ ev_child *w) |
1798 | { |
2940 | { |
1799 | clear_pending (EV_A_ (W)w); |
2941 | clear_pending (EV_A_ (W)w); |
1800 | if (expect_false (!ev_is_active (w))) |
2942 | if (expect_false (!ev_is_active (w))) |
1801 | return; |
2943 | return; |
1802 | |
2944 | |
|
|
2945 | EV_FREQUENT_CHECK; |
|
|
2946 | |
1803 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2947 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
1804 | ev_stop (EV_A_ (W)w); |
2948 | ev_stop (EV_A_ (W)w); |
|
|
2949 | |
|
|
2950 | EV_FREQUENT_CHECK; |
1805 | } |
2951 | } |
|
|
2952 | |
|
|
2953 | #endif |
1806 | |
2954 | |
1807 | #if EV_STAT_ENABLE |
2955 | #if EV_STAT_ENABLE |
1808 | |
2956 | |
1809 | # ifdef _WIN32 |
2957 | # ifdef _WIN32 |
1810 | # undef lstat |
2958 | # undef lstat |
1811 | # define lstat(a,b) _stati64 (a,b) |
2959 | # define lstat(a,b) _stati64 (a,b) |
1812 | # endif |
2960 | # endif |
1813 | |
2961 | |
1814 | #define DEF_STAT_INTERVAL 5.0074891 |
2962 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2963 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1815 | #define MIN_STAT_INTERVAL 0.1074891 |
2964 | #define MIN_STAT_INTERVAL 0.1074891 |
1816 | |
2965 | |
1817 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2966 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1818 | |
2967 | |
1819 | #if EV_USE_INOTIFY |
2968 | #if EV_USE_INOTIFY |
1820 | # define EV_INOTIFY_BUFSIZE 8192 |
2969 | |
|
|
2970 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2971 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
1821 | |
2972 | |
1822 | static void noinline |
2973 | static void noinline |
1823 | infy_add (EV_P_ ev_stat *w) |
2974 | infy_add (EV_P_ ev_stat *w) |
1824 | { |
2975 | { |
1825 | 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); |
2976 | 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); |
1826 | |
2977 | |
1827 | if (w->wd < 0) |
2978 | if (w->wd >= 0) |
|
|
2979 | { |
|
|
2980 | struct statfs sfs; |
|
|
2981 | |
|
|
2982 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2983 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2984 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2985 | |
|
|
2986 | if (!fs_2625) |
|
|
2987 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2988 | else if (!statfs (w->path, &sfs) |
|
|
2989 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2990 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2991 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2992 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2993 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2994 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2995 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2996 | else |
|
|
2997 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
1828 | { |
2998 | } |
1829 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2999 | else |
|
|
3000 | { |
|
|
3001 | /* can't use inotify, continue to stat */ |
|
|
3002 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1830 | |
3003 | |
1831 | /* monitor some parent directory for speedup hints */ |
3004 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
3005 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
3006 | /* but an efficiency issue only */ |
1832 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3007 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1833 | { |
3008 | { |
1834 | char path [4096]; |
3009 | char path [4096]; |
1835 | strcpy (path, w->path); |
3010 | strcpy (path, w->path); |
1836 | |
3011 | |
… | |
… | |
1839 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3014 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1840 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3015 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1841 | |
3016 | |
1842 | char *pend = strrchr (path, '/'); |
3017 | char *pend = strrchr (path, '/'); |
1843 | |
3018 | |
1844 | if (!pend) |
3019 | if (!pend || pend == path) |
1845 | break; /* whoops, no '/', complain to your admin */ |
3020 | break; |
1846 | |
3021 | |
1847 | *pend = 0; |
3022 | *pend = 0; |
1848 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3023 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1849 | } |
3024 | } |
1850 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3025 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1851 | } |
3026 | } |
1852 | } |
3027 | } |
1853 | else |
|
|
1854 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1855 | |
3028 | |
1856 | if (w->wd >= 0) |
3029 | if (w->wd >= 0) |
1857 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3030 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3031 | |
|
|
3032 | /* now re-arm timer, if required */ |
|
|
3033 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3034 | ev_timer_again (EV_A_ &w->timer); |
|
|
3035 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
1858 | } |
3036 | } |
1859 | |
3037 | |
1860 | static void noinline |
3038 | static void noinline |
1861 | infy_del (EV_P_ ev_stat *w) |
3039 | infy_del (EV_P_ ev_stat *w) |
1862 | { |
3040 | { |
… | |
… | |
1865 | |
3043 | |
1866 | if (wd < 0) |
3044 | if (wd < 0) |
1867 | return; |
3045 | return; |
1868 | |
3046 | |
1869 | w->wd = -2; |
3047 | w->wd = -2; |
1870 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3048 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
1871 | wlist_del (&fs_hash [slot].head, (WL)w); |
3049 | wlist_del (&fs_hash [slot].head, (WL)w); |
1872 | |
3050 | |
1873 | /* remove this watcher, if others are watching it, they will rearm */ |
3051 | /* remove this watcher, if others are watching it, they will rearm */ |
1874 | inotify_rm_watch (fs_fd, wd); |
3052 | inotify_rm_watch (fs_fd, wd); |
1875 | } |
3053 | } |
1876 | |
3054 | |
1877 | static void noinline |
3055 | static void noinline |
1878 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3056 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1879 | { |
3057 | { |
1880 | if (slot < 0) |
3058 | if (slot < 0) |
1881 | /* overflow, need to check for all hahs slots */ |
3059 | /* overflow, need to check for all hash slots */ |
1882 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3060 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
1883 | infy_wd (EV_A_ slot, wd, ev); |
3061 | infy_wd (EV_A_ slot, wd, ev); |
1884 | else |
3062 | else |
1885 | { |
3063 | { |
1886 | WL w_; |
3064 | WL w_; |
1887 | |
3065 | |
1888 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3066 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
1889 | { |
3067 | { |
1890 | ev_stat *w = (ev_stat *)w_; |
3068 | ev_stat *w = (ev_stat *)w_; |
1891 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3069 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
1892 | |
3070 | |
1893 | if (w->wd == wd || wd == -1) |
3071 | if (w->wd == wd || wd == -1) |
1894 | { |
3072 | { |
1895 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3073 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
1896 | { |
3074 | { |
|
|
3075 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
1897 | w->wd = -1; |
3076 | w->wd = -1; |
1898 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3077 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1899 | } |
3078 | } |
1900 | |
3079 | |
1901 | stat_timer_cb (EV_A_ &w->timer, 0); |
3080 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
1906 | |
3085 | |
1907 | static void |
3086 | static void |
1908 | infy_cb (EV_P_ ev_io *w, int revents) |
3087 | infy_cb (EV_P_ ev_io *w, int revents) |
1909 | { |
3088 | { |
1910 | char buf [EV_INOTIFY_BUFSIZE]; |
3089 | char buf [EV_INOTIFY_BUFSIZE]; |
1911 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1912 | int ofs; |
3090 | int ofs; |
1913 | int len = read (fs_fd, buf, sizeof (buf)); |
3091 | int len = read (fs_fd, buf, sizeof (buf)); |
1914 | |
3092 | |
1915 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3093 | for (ofs = 0; ofs < len; ) |
|
|
3094 | { |
|
|
3095 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
1916 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3096 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3097 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3098 | } |
1917 | } |
3099 | } |
1918 | |
3100 | |
1919 | void inline_size |
3101 | inline_size void |
|
|
3102 | ev_check_2625 (EV_P) |
|
|
3103 | { |
|
|
3104 | /* kernels < 2.6.25 are borked |
|
|
3105 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3106 | */ |
|
|
3107 | if (ev_linux_version () < 0x020619) |
|
|
3108 | return; |
|
|
3109 | |
|
|
3110 | fs_2625 = 1; |
|
|
3111 | } |
|
|
3112 | |
|
|
3113 | inline_size int |
|
|
3114 | infy_newfd (void) |
|
|
3115 | { |
|
|
3116 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3117 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3118 | if (fd >= 0) |
|
|
3119 | return fd; |
|
|
3120 | #endif |
|
|
3121 | return inotify_init (); |
|
|
3122 | } |
|
|
3123 | |
|
|
3124 | inline_size void |
1920 | infy_init (EV_P) |
3125 | infy_init (EV_P) |
1921 | { |
3126 | { |
1922 | if (fs_fd != -2) |
3127 | if (fs_fd != -2) |
1923 | return; |
3128 | return; |
1924 | |
3129 | |
|
|
3130 | fs_fd = -1; |
|
|
3131 | |
|
|
3132 | ev_check_2625 (EV_A); |
|
|
3133 | |
1925 | fs_fd = inotify_init (); |
3134 | fs_fd = infy_newfd (); |
1926 | |
3135 | |
1927 | if (fs_fd >= 0) |
3136 | if (fs_fd >= 0) |
1928 | { |
3137 | { |
|
|
3138 | fd_intern (fs_fd); |
1929 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3139 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
1930 | ev_set_priority (&fs_w, EV_MAXPRI); |
3140 | ev_set_priority (&fs_w, EV_MAXPRI); |
1931 | ev_io_start (EV_A_ &fs_w); |
3141 | ev_io_start (EV_A_ &fs_w); |
|
|
3142 | ev_unref (EV_A); |
1932 | } |
3143 | } |
1933 | } |
3144 | } |
1934 | |
3145 | |
1935 | void inline_size |
3146 | inline_size void |
1936 | infy_fork (EV_P) |
3147 | infy_fork (EV_P) |
1937 | { |
3148 | { |
1938 | int slot; |
3149 | int slot; |
1939 | |
3150 | |
1940 | if (fs_fd < 0) |
3151 | if (fs_fd < 0) |
1941 | return; |
3152 | return; |
1942 | |
3153 | |
|
|
3154 | ev_ref (EV_A); |
|
|
3155 | ev_io_stop (EV_A_ &fs_w); |
1943 | close (fs_fd); |
3156 | close (fs_fd); |
1944 | fs_fd = inotify_init (); |
3157 | fs_fd = infy_newfd (); |
1945 | |
3158 | |
|
|
3159 | if (fs_fd >= 0) |
|
|
3160 | { |
|
|
3161 | fd_intern (fs_fd); |
|
|
3162 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3163 | ev_io_start (EV_A_ &fs_w); |
|
|
3164 | ev_unref (EV_A); |
|
|
3165 | } |
|
|
3166 | |
1946 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3167 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
1947 | { |
3168 | { |
1948 | WL w_ = fs_hash [slot].head; |
3169 | WL w_ = fs_hash [slot].head; |
1949 | fs_hash [slot].head = 0; |
3170 | fs_hash [slot].head = 0; |
1950 | |
3171 | |
1951 | while (w_) |
3172 | while (w_) |
… | |
… | |
1956 | w->wd = -1; |
3177 | w->wd = -1; |
1957 | |
3178 | |
1958 | if (fs_fd >= 0) |
3179 | if (fs_fd >= 0) |
1959 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3180 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1960 | else |
3181 | else |
|
|
3182 | { |
|
|
3183 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3184 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
1961 | ev_timer_start (EV_A_ &w->timer); |
3185 | ev_timer_again (EV_A_ &w->timer); |
|
|
3186 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3187 | } |
1962 | } |
3188 | } |
1963 | |
|
|
1964 | } |
3189 | } |
1965 | } |
3190 | } |
1966 | |
3191 | |
|
|
3192 | #endif |
|
|
3193 | |
|
|
3194 | #ifdef _WIN32 |
|
|
3195 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3196 | #else |
|
|
3197 | # define EV_LSTAT(p,b) lstat (p, b) |
1967 | #endif |
3198 | #endif |
1968 | |
3199 | |
1969 | void |
3200 | void |
1970 | ev_stat_stat (EV_P_ ev_stat *w) |
3201 | ev_stat_stat (EV_P_ ev_stat *w) |
1971 | { |
3202 | { |
… | |
… | |
1978 | static void noinline |
3209 | static void noinline |
1979 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3210 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1980 | { |
3211 | { |
1981 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3212 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1982 | |
3213 | |
1983 | /* we copy this here each the time so that */ |
3214 | ev_statdata prev = w->attr; |
1984 | /* prev has the old value when the callback gets invoked */ |
|
|
1985 | w->prev = w->attr; |
|
|
1986 | ev_stat_stat (EV_A_ w); |
3215 | ev_stat_stat (EV_A_ w); |
1987 | |
3216 | |
1988 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3217 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
1989 | if ( |
3218 | if ( |
1990 | w->prev.st_dev != w->attr.st_dev |
3219 | prev.st_dev != w->attr.st_dev |
1991 | || w->prev.st_ino != w->attr.st_ino |
3220 | || prev.st_ino != w->attr.st_ino |
1992 | || w->prev.st_mode != w->attr.st_mode |
3221 | || prev.st_mode != w->attr.st_mode |
1993 | || w->prev.st_nlink != w->attr.st_nlink |
3222 | || prev.st_nlink != w->attr.st_nlink |
1994 | || w->prev.st_uid != w->attr.st_uid |
3223 | || prev.st_uid != w->attr.st_uid |
1995 | || w->prev.st_gid != w->attr.st_gid |
3224 | || prev.st_gid != w->attr.st_gid |
1996 | || w->prev.st_rdev != w->attr.st_rdev |
3225 | || prev.st_rdev != w->attr.st_rdev |
1997 | || w->prev.st_size != w->attr.st_size |
3226 | || prev.st_size != w->attr.st_size |
1998 | || w->prev.st_atime != w->attr.st_atime |
3227 | || prev.st_atime != w->attr.st_atime |
1999 | || w->prev.st_mtime != w->attr.st_mtime |
3228 | || prev.st_mtime != w->attr.st_mtime |
2000 | || w->prev.st_ctime != w->attr.st_ctime |
3229 | || prev.st_ctime != w->attr.st_ctime |
2001 | ) { |
3230 | ) { |
|
|
3231 | /* we only update w->prev on actual differences */ |
|
|
3232 | /* in case we test more often than invoke the callback, */ |
|
|
3233 | /* to ensure that prev is always different to attr */ |
|
|
3234 | w->prev = prev; |
|
|
3235 | |
2002 | #if EV_USE_INOTIFY |
3236 | #if EV_USE_INOTIFY |
|
|
3237 | if (fs_fd >= 0) |
|
|
3238 | { |
2003 | infy_del (EV_A_ w); |
3239 | infy_del (EV_A_ w); |
2004 | infy_add (EV_A_ w); |
3240 | infy_add (EV_A_ w); |
2005 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3241 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3242 | } |
2006 | #endif |
3243 | #endif |
2007 | |
3244 | |
2008 | ev_feed_event (EV_A_ w, EV_STAT); |
3245 | ev_feed_event (EV_A_ w, EV_STAT); |
2009 | } |
3246 | } |
2010 | } |
3247 | } |
… | |
… | |
2013 | ev_stat_start (EV_P_ ev_stat *w) |
3250 | ev_stat_start (EV_P_ ev_stat *w) |
2014 | { |
3251 | { |
2015 | if (expect_false (ev_is_active (w))) |
3252 | if (expect_false (ev_is_active (w))) |
2016 | return; |
3253 | return; |
2017 | |
3254 | |
2018 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2019 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2020 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2021 | |
|
|
2022 | ev_stat_stat (EV_A_ w); |
3255 | ev_stat_stat (EV_A_ w); |
2023 | |
3256 | |
|
|
3257 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2024 | if (w->interval < MIN_STAT_INTERVAL) |
3258 | w->interval = MIN_STAT_INTERVAL; |
2025 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2026 | |
3259 | |
2027 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3260 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2028 | ev_set_priority (&w->timer, ev_priority (w)); |
3261 | ev_set_priority (&w->timer, ev_priority (w)); |
2029 | |
3262 | |
2030 | #if EV_USE_INOTIFY |
3263 | #if EV_USE_INOTIFY |
2031 | infy_init (EV_A); |
3264 | infy_init (EV_A); |
2032 | |
3265 | |
2033 | if (fs_fd >= 0) |
3266 | if (fs_fd >= 0) |
2034 | infy_add (EV_A_ w); |
3267 | infy_add (EV_A_ w); |
2035 | else |
3268 | else |
2036 | #endif |
3269 | #endif |
|
|
3270 | { |
2037 | ev_timer_start (EV_A_ &w->timer); |
3271 | ev_timer_again (EV_A_ &w->timer); |
|
|
3272 | ev_unref (EV_A); |
|
|
3273 | } |
2038 | |
3274 | |
2039 | ev_start (EV_A_ (W)w, 1); |
3275 | ev_start (EV_A_ (W)w, 1); |
|
|
3276 | |
|
|
3277 | EV_FREQUENT_CHECK; |
2040 | } |
3278 | } |
2041 | |
3279 | |
2042 | void |
3280 | void |
2043 | ev_stat_stop (EV_P_ ev_stat *w) |
3281 | ev_stat_stop (EV_P_ ev_stat *w) |
2044 | { |
3282 | { |
2045 | clear_pending (EV_A_ (W)w); |
3283 | clear_pending (EV_A_ (W)w); |
2046 | if (expect_false (!ev_is_active (w))) |
3284 | if (expect_false (!ev_is_active (w))) |
2047 | return; |
3285 | return; |
2048 | |
3286 | |
|
|
3287 | EV_FREQUENT_CHECK; |
|
|
3288 | |
2049 | #if EV_USE_INOTIFY |
3289 | #if EV_USE_INOTIFY |
2050 | infy_del (EV_A_ w); |
3290 | infy_del (EV_A_ w); |
2051 | #endif |
3291 | #endif |
|
|
3292 | |
|
|
3293 | if (ev_is_active (&w->timer)) |
|
|
3294 | { |
|
|
3295 | ev_ref (EV_A); |
2052 | ev_timer_stop (EV_A_ &w->timer); |
3296 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3297 | } |
2053 | |
3298 | |
2054 | ev_stop (EV_A_ (W)w); |
3299 | ev_stop (EV_A_ (W)w); |
|
|
3300 | |
|
|
3301 | EV_FREQUENT_CHECK; |
2055 | } |
3302 | } |
2056 | #endif |
3303 | #endif |
2057 | |
3304 | |
2058 | #if EV_IDLE_ENABLE |
3305 | #if EV_IDLE_ENABLE |
2059 | void |
3306 | void |
… | |
… | |
2061 | { |
3308 | { |
2062 | if (expect_false (ev_is_active (w))) |
3309 | if (expect_false (ev_is_active (w))) |
2063 | return; |
3310 | return; |
2064 | |
3311 | |
2065 | pri_adjust (EV_A_ (W)w); |
3312 | pri_adjust (EV_A_ (W)w); |
|
|
3313 | |
|
|
3314 | EV_FREQUENT_CHECK; |
2066 | |
3315 | |
2067 | { |
3316 | { |
2068 | int active = ++idlecnt [ABSPRI (w)]; |
3317 | int active = ++idlecnt [ABSPRI (w)]; |
2069 | |
3318 | |
2070 | ++idleall; |
3319 | ++idleall; |
2071 | ev_start (EV_A_ (W)w, active); |
3320 | ev_start (EV_A_ (W)w, active); |
2072 | |
3321 | |
2073 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3322 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2074 | idles [ABSPRI (w)][active - 1] = w; |
3323 | idles [ABSPRI (w)][active - 1] = w; |
2075 | } |
3324 | } |
|
|
3325 | |
|
|
3326 | EV_FREQUENT_CHECK; |
2076 | } |
3327 | } |
2077 | |
3328 | |
2078 | void |
3329 | void |
2079 | ev_idle_stop (EV_P_ ev_idle *w) |
3330 | ev_idle_stop (EV_P_ ev_idle *w) |
2080 | { |
3331 | { |
2081 | clear_pending (EV_A_ (W)w); |
3332 | clear_pending (EV_A_ (W)w); |
2082 | if (expect_false (!ev_is_active (w))) |
3333 | if (expect_false (!ev_is_active (w))) |
2083 | return; |
3334 | return; |
2084 | |
3335 | |
|
|
3336 | EV_FREQUENT_CHECK; |
|
|
3337 | |
2085 | { |
3338 | { |
2086 | int active = ((W)w)->active; |
3339 | int active = ev_active (w); |
2087 | |
3340 | |
2088 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3341 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2089 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3342 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2090 | |
3343 | |
2091 | ev_stop (EV_A_ (W)w); |
3344 | ev_stop (EV_A_ (W)w); |
2092 | --idleall; |
3345 | --idleall; |
2093 | } |
3346 | } |
2094 | } |
|
|
2095 | #endif |
|
|
2096 | |
3347 | |
|
|
3348 | EV_FREQUENT_CHECK; |
|
|
3349 | } |
|
|
3350 | #endif |
|
|
3351 | |
|
|
3352 | #if EV_PREPARE_ENABLE |
2097 | void |
3353 | void |
2098 | ev_prepare_start (EV_P_ ev_prepare *w) |
3354 | ev_prepare_start (EV_P_ ev_prepare *w) |
2099 | { |
3355 | { |
2100 | if (expect_false (ev_is_active (w))) |
3356 | if (expect_false (ev_is_active (w))) |
2101 | return; |
3357 | return; |
|
|
3358 | |
|
|
3359 | EV_FREQUENT_CHECK; |
2102 | |
3360 | |
2103 | ev_start (EV_A_ (W)w, ++preparecnt); |
3361 | ev_start (EV_A_ (W)w, ++preparecnt); |
2104 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3362 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2105 | prepares [preparecnt - 1] = w; |
3363 | prepares [preparecnt - 1] = w; |
|
|
3364 | |
|
|
3365 | EV_FREQUENT_CHECK; |
2106 | } |
3366 | } |
2107 | |
3367 | |
2108 | void |
3368 | void |
2109 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3369 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2110 | { |
3370 | { |
2111 | clear_pending (EV_A_ (W)w); |
3371 | clear_pending (EV_A_ (W)w); |
2112 | if (expect_false (!ev_is_active (w))) |
3372 | if (expect_false (!ev_is_active (w))) |
2113 | return; |
3373 | return; |
2114 | |
3374 | |
|
|
3375 | EV_FREQUENT_CHECK; |
|
|
3376 | |
2115 | { |
3377 | { |
2116 | int active = ((W)w)->active; |
3378 | int active = ev_active (w); |
|
|
3379 | |
2117 | prepares [active - 1] = prepares [--preparecnt]; |
3380 | prepares [active - 1] = prepares [--preparecnt]; |
2118 | ((W)prepares [active - 1])->active = active; |
3381 | ev_active (prepares [active - 1]) = active; |
2119 | } |
3382 | } |
2120 | |
3383 | |
2121 | ev_stop (EV_A_ (W)w); |
3384 | ev_stop (EV_A_ (W)w); |
2122 | } |
|
|
2123 | |
3385 | |
|
|
3386 | EV_FREQUENT_CHECK; |
|
|
3387 | } |
|
|
3388 | #endif |
|
|
3389 | |
|
|
3390 | #if EV_CHECK_ENABLE |
2124 | void |
3391 | void |
2125 | ev_check_start (EV_P_ ev_check *w) |
3392 | ev_check_start (EV_P_ ev_check *w) |
2126 | { |
3393 | { |
2127 | if (expect_false (ev_is_active (w))) |
3394 | if (expect_false (ev_is_active (w))) |
2128 | return; |
3395 | return; |
|
|
3396 | |
|
|
3397 | EV_FREQUENT_CHECK; |
2129 | |
3398 | |
2130 | ev_start (EV_A_ (W)w, ++checkcnt); |
3399 | ev_start (EV_A_ (W)w, ++checkcnt); |
2131 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3400 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2132 | checks [checkcnt - 1] = w; |
3401 | checks [checkcnt - 1] = w; |
|
|
3402 | |
|
|
3403 | EV_FREQUENT_CHECK; |
2133 | } |
3404 | } |
2134 | |
3405 | |
2135 | void |
3406 | void |
2136 | ev_check_stop (EV_P_ ev_check *w) |
3407 | ev_check_stop (EV_P_ ev_check *w) |
2137 | { |
3408 | { |
2138 | clear_pending (EV_A_ (W)w); |
3409 | clear_pending (EV_A_ (W)w); |
2139 | if (expect_false (!ev_is_active (w))) |
3410 | if (expect_false (!ev_is_active (w))) |
2140 | return; |
3411 | return; |
2141 | |
3412 | |
|
|
3413 | EV_FREQUENT_CHECK; |
|
|
3414 | |
2142 | { |
3415 | { |
2143 | int active = ((W)w)->active; |
3416 | int active = ev_active (w); |
|
|
3417 | |
2144 | checks [active - 1] = checks [--checkcnt]; |
3418 | checks [active - 1] = checks [--checkcnt]; |
2145 | ((W)checks [active - 1])->active = active; |
3419 | ev_active (checks [active - 1]) = active; |
2146 | } |
3420 | } |
2147 | |
3421 | |
2148 | ev_stop (EV_A_ (W)w); |
3422 | ev_stop (EV_A_ (W)w); |
|
|
3423 | |
|
|
3424 | EV_FREQUENT_CHECK; |
2149 | } |
3425 | } |
|
|
3426 | #endif |
2150 | |
3427 | |
2151 | #if EV_EMBED_ENABLE |
3428 | #if EV_EMBED_ENABLE |
2152 | void noinline |
3429 | void noinline |
2153 | ev_embed_sweep (EV_P_ ev_embed *w) |
3430 | ev_embed_sweep (EV_P_ ev_embed *w) |
2154 | { |
3431 | { |
2155 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
3432 | ev_run (w->other, EVRUN_NOWAIT); |
2156 | } |
3433 | } |
2157 | |
3434 | |
2158 | static void |
3435 | static void |
2159 | embed_cb (EV_P_ ev_io *io, int revents) |
3436 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2160 | { |
3437 | { |
2161 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3438 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2162 | |
3439 | |
2163 | if (ev_cb (w)) |
3440 | if (ev_cb (w)) |
2164 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3441 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2165 | else |
3442 | else |
2166 | ev_embed_sweep (loop, w); |
3443 | ev_run (w->other, EVRUN_NOWAIT); |
2167 | } |
3444 | } |
|
|
3445 | |
|
|
3446 | static void |
|
|
3447 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
3448 | { |
|
|
3449 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
3450 | |
|
|
3451 | { |
|
|
3452 | EV_P = w->other; |
|
|
3453 | |
|
|
3454 | while (fdchangecnt) |
|
|
3455 | { |
|
|
3456 | fd_reify (EV_A); |
|
|
3457 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3458 | } |
|
|
3459 | } |
|
|
3460 | } |
|
|
3461 | |
|
|
3462 | static void |
|
|
3463 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3464 | { |
|
|
3465 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3466 | |
|
|
3467 | ev_embed_stop (EV_A_ w); |
|
|
3468 | |
|
|
3469 | { |
|
|
3470 | EV_P = w->other; |
|
|
3471 | |
|
|
3472 | ev_loop_fork (EV_A); |
|
|
3473 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3474 | } |
|
|
3475 | |
|
|
3476 | ev_embed_start (EV_A_ w); |
|
|
3477 | } |
|
|
3478 | |
|
|
3479 | #if 0 |
|
|
3480 | static void |
|
|
3481 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
3482 | { |
|
|
3483 | ev_idle_stop (EV_A_ idle); |
|
|
3484 | } |
|
|
3485 | #endif |
2168 | |
3486 | |
2169 | void |
3487 | void |
2170 | ev_embed_start (EV_P_ ev_embed *w) |
3488 | ev_embed_start (EV_P_ ev_embed *w) |
2171 | { |
3489 | { |
2172 | if (expect_false (ev_is_active (w))) |
3490 | if (expect_false (ev_is_active (w))) |
2173 | return; |
3491 | return; |
2174 | |
3492 | |
2175 | { |
3493 | { |
2176 | struct ev_loop *loop = w->loop; |
3494 | EV_P = w->other; |
2177 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3495 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2178 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
3496 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2179 | } |
3497 | } |
|
|
3498 | |
|
|
3499 | EV_FREQUENT_CHECK; |
2180 | |
3500 | |
2181 | ev_set_priority (&w->io, ev_priority (w)); |
3501 | ev_set_priority (&w->io, ev_priority (w)); |
2182 | ev_io_start (EV_A_ &w->io); |
3502 | ev_io_start (EV_A_ &w->io); |
2183 | |
3503 | |
|
|
3504 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
3505 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
3506 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
3507 | |
|
|
3508 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3509 | ev_fork_start (EV_A_ &w->fork); |
|
|
3510 | |
|
|
3511 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
3512 | |
2184 | ev_start (EV_A_ (W)w, 1); |
3513 | ev_start (EV_A_ (W)w, 1); |
|
|
3514 | |
|
|
3515 | EV_FREQUENT_CHECK; |
2185 | } |
3516 | } |
2186 | |
3517 | |
2187 | void |
3518 | void |
2188 | ev_embed_stop (EV_P_ ev_embed *w) |
3519 | ev_embed_stop (EV_P_ ev_embed *w) |
2189 | { |
3520 | { |
2190 | clear_pending (EV_A_ (W)w); |
3521 | clear_pending (EV_A_ (W)w); |
2191 | if (expect_false (!ev_is_active (w))) |
3522 | if (expect_false (!ev_is_active (w))) |
2192 | return; |
3523 | return; |
2193 | |
3524 | |
|
|
3525 | EV_FREQUENT_CHECK; |
|
|
3526 | |
2194 | ev_io_stop (EV_A_ &w->io); |
3527 | ev_io_stop (EV_A_ &w->io); |
|
|
3528 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3529 | ev_fork_stop (EV_A_ &w->fork); |
2195 | |
3530 | |
2196 | ev_stop (EV_A_ (W)w); |
3531 | ev_stop (EV_A_ (W)w); |
|
|
3532 | |
|
|
3533 | EV_FREQUENT_CHECK; |
2197 | } |
3534 | } |
2198 | #endif |
3535 | #endif |
2199 | |
3536 | |
2200 | #if EV_FORK_ENABLE |
3537 | #if EV_FORK_ENABLE |
2201 | void |
3538 | void |
2202 | ev_fork_start (EV_P_ ev_fork *w) |
3539 | ev_fork_start (EV_P_ ev_fork *w) |
2203 | { |
3540 | { |
2204 | if (expect_false (ev_is_active (w))) |
3541 | if (expect_false (ev_is_active (w))) |
2205 | return; |
3542 | return; |
|
|
3543 | |
|
|
3544 | EV_FREQUENT_CHECK; |
2206 | |
3545 | |
2207 | ev_start (EV_A_ (W)w, ++forkcnt); |
3546 | ev_start (EV_A_ (W)w, ++forkcnt); |
2208 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3547 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2209 | forks [forkcnt - 1] = w; |
3548 | forks [forkcnt - 1] = w; |
|
|
3549 | |
|
|
3550 | EV_FREQUENT_CHECK; |
2210 | } |
3551 | } |
2211 | |
3552 | |
2212 | void |
3553 | void |
2213 | ev_fork_stop (EV_P_ ev_fork *w) |
3554 | ev_fork_stop (EV_P_ ev_fork *w) |
2214 | { |
3555 | { |
2215 | clear_pending (EV_A_ (W)w); |
3556 | clear_pending (EV_A_ (W)w); |
2216 | if (expect_false (!ev_is_active (w))) |
3557 | if (expect_false (!ev_is_active (w))) |
2217 | return; |
3558 | return; |
2218 | |
3559 | |
|
|
3560 | EV_FREQUENT_CHECK; |
|
|
3561 | |
2219 | { |
3562 | { |
2220 | int active = ((W)w)->active; |
3563 | int active = ev_active (w); |
|
|
3564 | |
2221 | forks [active - 1] = forks [--forkcnt]; |
3565 | forks [active - 1] = forks [--forkcnt]; |
2222 | ((W)forks [active - 1])->active = active; |
3566 | ev_active (forks [active - 1]) = active; |
2223 | } |
3567 | } |
2224 | |
3568 | |
2225 | ev_stop (EV_A_ (W)w); |
3569 | ev_stop (EV_A_ (W)w); |
|
|
3570 | |
|
|
3571 | EV_FREQUENT_CHECK; |
|
|
3572 | } |
|
|
3573 | #endif |
|
|
3574 | |
|
|
3575 | #if EV_CLEANUP_ENABLE |
|
|
3576 | void |
|
|
3577 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
3578 | { |
|
|
3579 | if (expect_false (ev_is_active (w))) |
|
|
3580 | return; |
|
|
3581 | |
|
|
3582 | EV_FREQUENT_CHECK; |
|
|
3583 | |
|
|
3584 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3585 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3586 | cleanups [cleanupcnt - 1] = w; |
|
|
3587 | |
|
|
3588 | EV_FREQUENT_CHECK; |
|
|
3589 | } |
|
|
3590 | |
|
|
3591 | void |
|
|
3592 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3593 | { |
|
|
3594 | clear_pending (EV_A_ (W)w); |
|
|
3595 | if (expect_false (!ev_is_active (w))) |
|
|
3596 | return; |
|
|
3597 | |
|
|
3598 | EV_FREQUENT_CHECK; |
|
|
3599 | |
|
|
3600 | { |
|
|
3601 | int active = ev_active (w); |
|
|
3602 | |
|
|
3603 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3604 | ev_active (cleanups [active - 1]) = active; |
|
|
3605 | } |
|
|
3606 | |
|
|
3607 | ev_stop (EV_A_ (W)w); |
|
|
3608 | |
|
|
3609 | EV_FREQUENT_CHECK; |
|
|
3610 | } |
|
|
3611 | #endif |
|
|
3612 | |
|
|
3613 | #if EV_ASYNC_ENABLE |
|
|
3614 | void |
|
|
3615 | ev_async_start (EV_P_ ev_async *w) |
|
|
3616 | { |
|
|
3617 | if (expect_false (ev_is_active (w))) |
|
|
3618 | return; |
|
|
3619 | |
|
|
3620 | w->sent = 0; |
|
|
3621 | |
|
|
3622 | evpipe_init (EV_A); |
|
|
3623 | |
|
|
3624 | EV_FREQUENT_CHECK; |
|
|
3625 | |
|
|
3626 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3627 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3628 | asyncs [asynccnt - 1] = w; |
|
|
3629 | |
|
|
3630 | EV_FREQUENT_CHECK; |
|
|
3631 | } |
|
|
3632 | |
|
|
3633 | void |
|
|
3634 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3635 | { |
|
|
3636 | clear_pending (EV_A_ (W)w); |
|
|
3637 | if (expect_false (!ev_is_active (w))) |
|
|
3638 | return; |
|
|
3639 | |
|
|
3640 | EV_FREQUENT_CHECK; |
|
|
3641 | |
|
|
3642 | { |
|
|
3643 | int active = ev_active (w); |
|
|
3644 | |
|
|
3645 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3646 | ev_active (asyncs [active - 1]) = active; |
|
|
3647 | } |
|
|
3648 | |
|
|
3649 | ev_stop (EV_A_ (W)w); |
|
|
3650 | |
|
|
3651 | EV_FREQUENT_CHECK; |
|
|
3652 | } |
|
|
3653 | |
|
|
3654 | void |
|
|
3655 | ev_async_send (EV_P_ ev_async *w) |
|
|
3656 | { |
|
|
3657 | w->sent = 1; |
|
|
3658 | evpipe_write (EV_A_ &async_pending); |
2226 | } |
3659 | } |
2227 | #endif |
3660 | #endif |
2228 | |
3661 | |
2229 | /*****************************************************************************/ |
3662 | /*****************************************************************************/ |
2230 | |
3663 | |
… | |
… | |
2240 | once_cb (EV_P_ struct ev_once *once, int revents) |
3673 | once_cb (EV_P_ struct ev_once *once, int revents) |
2241 | { |
3674 | { |
2242 | void (*cb)(int revents, void *arg) = once->cb; |
3675 | void (*cb)(int revents, void *arg) = once->cb; |
2243 | void *arg = once->arg; |
3676 | void *arg = once->arg; |
2244 | |
3677 | |
2245 | ev_io_stop (EV_A_ &once->io); |
3678 | ev_io_stop (EV_A_ &once->io); |
2246 | ev_timer_stop (EV_A_ &once->to); |
3679 | ev_timer_stop (EV_A_ &once->to); |
2247 | ev_free (once); |
3680 | ev_free (once); |
2248 | |
3681 | |
2249 | cb (revents, arg); |
3682 | cb (revents, arg); |
2250 | } |
3683 | } |
2251 | |
3684 | |
2252 | static void |
3685 | static void |
2253 | once_cb_io (EV_P_ ev_io *w, int revents) |
3686 | once_cb_io (EV_P_ ev_io *w, int revents) |
2254 | { |
3687 | { |
2255 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3688 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3689 | |
|
|
3690 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2256 | } |
3691 | } |
2257 | |
3692 | |
2258 | static void |
3693 | static void |
2259 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3694 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2260 | { |
3695 | { |
2261 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3696 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3697 | |
|
|
3698 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2262 | } |
3699 | } |
2263 | |
3700 | |
2264 | void |
3701 | void |
2265 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3702 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2266 | { |
3703 | { |
2267 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3704 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2268 | |
3705 | |
2269 | if (expect_false (!once)) |
3706 | if (expect_false (!once)) |
2270 | { |
3707 | { |
2271 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3708 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2272 | return; |
3709 | return; |
2273 | } |
3710 | } |
2274 | |
3711 | |
2275 | once->cb = cb; |
3712 | once->cb = cb; |
2276 | once->arg = arg; |
3713 | once->arg = arg; |
… | |
… | |
2288 | ev_timer_set (&once->to, timeout, 0.); |
3725 | ev_timer_set (&once->to, timeout, 0.); |
2289 | ev_timer_start (EV_A_ &once->to); |
3726 | ev_timer_start (EV_A_ &once->to); |
2290 | } |
3727 | } |
2291 | } |
3728 | } |
2292 | |
3729 | |
2293 | #ifdef __cplusplus |
3730 | /*****************************************************************************/ |
2294 | } |
3731 | |
|
|
3732 | #if EV_WALK_ENABLE |
|
|
3733 | void |
|
|
3734 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3735 | { |
|
|
3736 | int i, j; |
|
|
3737 | ev_watcher_list *wl, *wn; |
|
|
3738 | |
|
|
3739 | if (types & (EV_IO | EV_EMBED)) |
|
|
3740 | for (i = 0; i < anfdmax; ++i) |
|
|
3741 | for (wl = anfds [i].head; wl; ) |
|
|
3742 | { |
|
|
3743 | wn = wl->next; |
|
|
3744 | |
|
|
3745 | #if EV_EMBED_ENABLE |
|
|
3746 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3747 | { |
|
|
3748 | if (types & EV_EMBED) |
|
|
3749 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3750 | } |
|
|
3751 | else |
|
|
3752 | #endif |
|
|
3753 | #if EV_USE_INOTIFY |
|
|
3754 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3755 | ; |
|
|
3756 | else |
|
|
3757 | #endif |
|
|
3758 | if ((ev_io *)wl != &pipe_w) |
|
|
3759 | if (types & EV_IO) |
|
|
3760 | cb (EV_A_ EV_IO, wl); |
|
|
3761 | |
|
|
3762 | wl = wn; |
|
|
3763 | } |
|
|
3764 | |
|
|
3765 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3766 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3767 | #if EV_STAT_ENABLE |
|
|
3768 | /*TODO: timer is not always active*/ |
|
|
3769 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3770 | { |
|
|
3771 | if (types & EV_STAT) |
|
|
3772 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3773 | } |
|
|
3774 | else |
|
|
3775 | #endif |
|
|
3776 | if (types & EV_TIMER) |
|
|
3777 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3778 | |
|
|
3779 | #if EV_PERIODIC_ENABLE |
|
|
3780 | if (types & EV_PERIODIC) |
|
|
3781 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3782 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3783 | #endif |
|
|
3784 | |
|
|
3785 | #if EV_IDLE_ENABLE |
|
|
3786 | if (types & EV_IDLE) |
|
|
3787 | for (j = NUMPRI; i--; ) |
|
|
3788 | for (i = idlecnt [j]; i--; ) |
|
|
3789 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3790 | #endif |
|
|
3791 | |
|
|
3792 | #if EV_FORK_ENABLE |
|
|
3793 | if (types & EV_FORK) |
|
|
3794 | for (i = forkcnt; i--; ) |
|
|
3795 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3796 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3797 | #endif |
|
|
3798 | |
|
|
3799 | #if EV_ASYNC_ENABLE |
|
|
3800 | if (types & EV_ASYNC) |
|
|
3801 | for (i = asynccnt; i--; ) |
|
|
3802 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3803 | #endif |
|
|
3804 | |
|
|
3805 | #if EV_PREPARE_ENABLE |
|
|
3806 | if (types & EV_PREPARE) |
|
|
3807 | for (i = preparecnt; i--; ) |
|
|
3808 | # if EV_EMBED_ENABLE |
|
|
3809 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
2295 | #endif |
3810 | # endif |
|
|
3811 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3812 | #endif |
2296 | |
3813 | |
|
|
3814 | #if EV_CHECK_ENABLE |
|
|
3815 | if (types & EV_CHECK) |
|
|
3816 | for (i = checkcnt; i--; ) |
|
|
3817 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3818 | #endif |
|
|
3819 | |
|
|
3820 | #if EV_SIGNAL_ENABLE |
|
|
3821 | if (types & EV_SIGNAL) |
|
|
3822 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3823 | for (wl = signals [i].head; wl; ) |
|
|
3824 | { |
|
|
3825 | wn = wl->next; |
|
|
3826 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3827 | wl = wn; |
|
|
3828 | } |
|
|
3829 | #endif |
|
|
3830 | |
|
|
3831 | #if EV_CHILD_ENABLE |
|
|
3832 | if (types & EV_CHILD) |
|
|
3833 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3834 | for (wl = childs [i]; wl; ) |
|
|
3835 | { |
|
|
3836 | wn = wl->next; |
|
|
3837 | cb (EV_A_ EV_CHILD, wl); |
|
|
3838 | wl = wn; |
|
|
3839 | } |
|
|
3840 | #endif |
|
|
3841 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3842 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3843 | } |
|
|
3844 | #endif |
|
|
3845 | |
|
|
3846 | #if EV_MULTIPLICITY |
|
|
3847 | #include "ev_wrap.h" |
|
|
3848 | #endif |
|
|
3849 | |
|
|
3850 | EV_CPP(}) |
|
|
3851 | |