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 inline_size static inline /* inline for codesize */ |
|
|
228 | # if EV_MINIMAL |
|
|
229 | # define noinline __attribute__ ((noinline)) |
464 | # define noinline __attribute__ ((noinline)) |
230 | # define inline_speed static noinline |
|
|
231 | # else |
|
|
232 | # define noinline |
|
|
233 | # define inline_speed static inline |
|
|
234 | # endif |
|
|
235 | #else |
465 | #else |
236 | # define expect(expr,value) (expr) |
466 | # define expect(expr,value) (expr) |
237 | # define inline_speed static |
|
|
238 | # define inline_size static |
|
|
239 | # define noinline |
467 | # define noinline |
|
|
468 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
469 | # define inline |
|
|
470 | # endif |
240 | #endif |
471 | #endif |
241 | |
472 | |
242 | #define expect_false(expr) expect ((expr) != 0, 0) |
473 | #define expect_false(expr) expect ((expr) != 0, 0) |
243 | #define expect_true(expr) expect ((expr) != 0, 1) |
474 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
475 | #define inline_size static inline |
244 | |
476 | |
|
|
477 | #if EV_FEATURE_CODE |
|
|
478 | # define inline_speed static inline |
|
|
479 | #else |
|
|
480 | # define inline_speed static noinline |
|
|
481 | #endif |
|
|
482 | |
245 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
483 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
484 | |
|
|
485 | #if EV_MINPRI == EV_MAXPRI |
|
|
486 | # define ABSPRI(w) (((W)w), 0) |
|
|
487 | #else |
246 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
488 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
489 | #endif |
247 | |
490 | |
248 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
491 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
249 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
492 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
250 | |
493 | |
251 | typedef ev_watcher *W; |
494 | typedef ev_watcher *W; |
252 | typedef ev_watcher_list *WL; |
495 | typedef ev_watcher_list *WL; |
253 | typedef ev_watcher_time *WT; |
496 | typedef ev_watcher_time *WT; |
254 | |
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 |
255 | 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 |
256 | |
520 | |
257 | #ifdef _WIN32 |
521 | #ifdef _WIN32 |
258 | # include "ev_win32.c" |
522 | # include "ev_win32.c" |
259 | #endif |
523 | #endif |
260 | |
524 | |
261 | /*****************************************************************************/ |
525 | /*****************************************************************************/ |
262 | |
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 | |
263 | static void (*syserr_cb)(const char *msg); |
577 | static void (*syserr_cb)(const char *msg); |
264 | |
578 | |
265 | void |
579 | void |
266 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
580 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
267 | { |
581 | { |
268 | syserr_cb = cb; |
582 | syserr_cb = cb; |
269 | } |
583 | } |
270 | |
584 | |
271 | static void noinline |
585 | static void noinline |
272 | syserr (const char *msg) |
586 | ev_syserr (const char *msg) |
273 | { |
587 | { |
274 | if (!msg) |
588 | if (!msg) |
275 | msg = "(libev) system error"; |
589 | msg = "(libev) system error"; |
276 | |
590 | |
277 | if (syserr_cb) |
591 | if (syserr_cb) |
278 | syserr_cb (msg); |
592 | syserr_cb (msg); |
279 | else |
593 | else |
280 | { |
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 |
281 | perror (msg); |
603 | perror (msg); |
|
|
604 | #endif |
282 | abort (); |
605 | abort (); |
283 | } |
606 | } |
284 | } |
607 | } |
285 | |
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 | |
286 | static void *(*alloc)(void *ptr, size_t size) = realloc; |
628 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
287 | |
629 | |
288 | void |
630 | void |
289 | ev_set_allocator (void *(*cb)(void *ptr, size_t size)) |
631 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
290 | { |
632 | { |
291 | alloc = cb; |
633 | alloc = cb; |
292 | } |
634 | } |
293 | |
635 | |
294 | inline_speed void * |
636 | inline_speed void * |
295 | ev_realloc (void *ptr, size_t size) |
637 | ev_realloc (void *ptr, long size) |
296 | { |
638 | { |
297 | ptr = alloc (ptr, size); |
639 | ptr = alloc (ptr, size); |
298 | |
640 | |
299 | if (!ptr && size) |
641 | if (!ptr && size) |
300 | { |
642 | { |
|
|
643 | #if EV_AVOID_STDIO |
|
|
644 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
645 | #else |
301 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", (long)size); |
646 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
647 | #endif |
302 | abort (); |
648 | abort (); |
303 | } |
649 | } |
304 | |
650 | |
305 | return ptr; |
651 | return ptr; |
306 | } |
652 | } |
… | |
… | |
308 | #define ev_malloc(size) ev_realloc (0, (size)) |
654 | #define ev_malloc(size) ev_realloc (0, (size)) |
309 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
655 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
310 | |
656 | |
311 | /*****************************************************************************/ |
657 | /*****************************************************************************/ |
312 | |
658 | |
|
|
659 | /* set in reify when reification needed */ |
|
|
660 | #define EV_ANFD_REIFY 1 |
|
|
661 | |
|
|
662 | /* file descriptor info structure */ |
313 | typedef struct |
663 | typedef struct |
314 | { |
664 | { |
315 | WL head; |
665 | WL head; |
316 | 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 */ |
317 | unsigned char reify; |
669 | unsigned char unused; |
|
|
670 | #if EV_USE_EPOLL |
|
|
671 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
672 | #endif |
318 | #if EV_SELECT_IS_WINSOCKET |
673 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
319 | SOCKET handle; |
674 | SOCKET handle; |
320 | #endif |
675 | #endif |
|
|
676 | #if EV_USE_IOCP |
|
|
677 | OVERLAPPED or, ow; |
|
|
678 | #endif |
321 | } ANFD; |
679 | } ANFD; |
322 | |
680 | |
|
|
681 | /* stores the pending event set for a given watcher */ |
323 | typedef struct |
682 | typedef struct |
324 | { |
683 | { |
325 | W w; |
684 | W w; |
326 | int events; |
685 | int events; /* the pending event set for the given watcher */ |
327 | } ANPENDING; |
686 | } ANPENDING; |
328 | |
687 | |
|
|
688 | #if EV_USE_INOTIFY |
|
|
689 | /* hash table entry per inotify-id */ |
329 | typedef struct |
690 | typedef struct |
330 | { |
691 | { |
331 | #if EV_USE_INOTIFY |
|
|
332 | WL head; |
692 | WL head; |
333 | #endif |
|
|
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) |
|
|
714 | #endif |
335 | |
715 | |
336 | #if EV_MULTIPLICITY |
716 | #if EV_MULTIPLICITY |
337 | |
717 | |
338 | struct ev_loop |
718 | struct ev_loop |
339 | { |
719 | { |
… | |
… | |
357 | |
737 | |
358 | static int ev_default_loop_ptr; |
738 | static int ev_default_loop_ptr; |
359 | |
739 | |
360 | #endif |
740 | #endif |
361 | |
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 | |
362 | /*****************************************************************************/ |
754 | /*****************************************************************************/ |
363 | |
755 | |
|
|
756 | #ifndef EV_HAVE_EV_TIME |
364 | ev_tstamp |
757 | ev_tstamp |
365 | ev_time (void) |
758 | ev_time (void) |
366 | { |
759 | { |
367 | #if EV_USE_REALTIME |
760 | #if EV_USE_REALTIME |
|
|
761 | if (expect_true (have_realtime)) |
|
|
762 | { |
368 | struct timespec ts; |
763 | struct timespec ts; |
369 | clock_gettime (CLOCK_REALTIME, &ts); |
764 | clock_gettime (CLOCK_REALTIME, &ts); |
370 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
765 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
371 | #else |
766 | } |
|
|
767 | #endif |
|
|
768 | |
372 | struct timeval tv; |
769 | struct timeval tv; |
373 | gettimeofday (&tv, 0); |
770 | gettimeofday (&tv, 0); |
374 | return tv.tv_sec + tv.tv_usec * 1e-6; |
771 | return tv.tv_sec + tv.tv_usec * 1e-6; |
375 | #endif |
|
|
376 | } |
772 | } |
|
|
773 | #endif |
377 | |
774 | |
378 | ev_tstamp inline_size |
775 | inline_size ev_tstamp |
379 | get_clock (void) |
776 | get_clock (void) |
380 | { |
777 | { |
381 | #if EV_USE_MONOTONIC |
778 | #if EV_USE_MONOTONIC |
382 | if (expect_true (have_monotonic)) |
779 | if (expect_true (have_monotonic)) |
383 | { |
780 | { |
… | |
… | |
396 | { |
793 | { |
397 | return ev_rt_now; |
794 | return ev_rt_now; |
398 | } |
795 | } |
399 | #endif |
796 | #endif |
400 | |
797 | |
401 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
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 |
|
|
829 | array_nextsize (int elem, int cur, int cnt) |
|
|
830 | { |
|
|
831 | int ncur = cur + 1; |
|
|
832 | |
|
|
833 | do |
|
|
834 | ncur <<= 1; |
|
|
835 | while (cnt > ncur); |
|
|
836 | |
|
|
837 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
838 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
839 | { |
|
|
840 | ncur *= elem; |
|
|
841 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
842 | ncur = ncur - sizeof (void *) * 4; |
|
|
843 | ncur /= elem; |
|
|
844 | } |
|
|
845 | |
|
|
846 | return ncur; |
|
|
847 | } |
|
|
848 | |
|
|
849 | static noinline void * |
|
|
850 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
851 | { |
|
|
852 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
853 | return ev_realloc (base, elem * *cur); |
|
|
854 | } |
|
|
855 | |
|
|
856 | #define array_init_zero(base,count) \ |
|
|
857 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
402 | |
858 | |
403 | #define array_needsize(type,base,cur,cnt,init) \ |
859 | #define array_needsize(type,base,cur,cnt,init) \ |
404 | if (expect_false ((cnt) > cur)) \ |
860 | if (expect_false ((cnt) > (cur))) \ |
405 | { \ |
861 | { \ |
406 | int newcnt = cur; \ |
862 | int ocur_ = (cur); \ |
407 | do \ |
863 | (base) = (type *)array_realloc \ |
408 | { \ |
864 | (sizeof (type), (base), &(cur), (cnt)); \ |
409 | newcnt = array_roundsize (type, newcnt << 1); \ |
865 | init ((base) + (ocur_), (cur) - ocur_); \ |
410 | } \ |
|
|
411 | while ((cnt) > newcnt); \ |
|
|
412 | \ |
|
|
413 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
414 | init (base + cur, newcnt - cur); \ |
|
|
415 | cur = newcnt; \ |
|
|
416 | } |
866 | } |
417 | |
867 | |
|
|
868 | #if 0 |
418 | #define array_slim(type,stem) \ |
869 | #define array_slim(type,stem) \ |
419 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
870 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
420 | { \ |
871 | { \ |
421 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
872 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
422 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
873 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
423 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
874 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
424 | } |
875 | } |
|
|
876 | #endif |
425 | |
877 | |
426 | #define array_free(stem, idx) \ |
878 | #define array_free(stem, idx) \ |
427 | 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 |
428 | |
880 | |
429 | /*****************************************************************************/ |
881 | /*****************************************************************************/ |
|
|
882 | |
|
|
883 | /* dummy callback for pending events */ |
|
|
884 | static void noinline |
|
|
885 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
886 | { |
|
|
887 | } |
430 | |
888 | |
431 | void noinline |
889 | void noinline |
432 | ev_feed_event (EV_P_ void *w, int revents) |
890 | ev_feed_event (EV_P_ void *w, int revents) |
433 | { |
891 | { |
434 | W w_ = (W)w; |
892 | W w_ = (W)w; |
|
|
893 | int pri = ABSPRI (w_); |
435 | |
894 | |
436 | if (expect_false (w_->pending)) |
895 | if (expect_false (w_->pending)) |
|
|
896 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
897 | else |
437 | { |
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_; |
438 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
902 | pendings [pri][w_->pending - 1].events = revents; |
439 | return; |
|
|
440 | } |
903 | } |
441 | |
|
|
442 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
443 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
444 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
445 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
446 | } |
904 | } |
447 | |
905 | |
448 | 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 |
449 | queue_events (EV_P_ W *events, int eventcnt, int type) |
922 | queue_events (EV_P_ W *events, int eventcnt, int type) |
450 | { |
923 | { |
451 | int i; |
924 | int i; |
452 | |
925 | |
453 | for (i = 0; i < eventcnt; ++i) |
926 | for (i = 0; i < eventcnt; ++i) |
454 | ev_feed_event (EV_A_ events [i], type); |
927 | ev_feed_event (EV_A_ events [i], type); |
455 | } |
928 | } |
456 | |
929 | |
457 | /*****************************************************************************/ |
930 | /*****************************************************************************/ |
458 | |
931 | |
459 | void inline_size |
932 | inline_speed void |
460 | anfds_init (ANFD *base, int count) |
|
|
461 | { |
|
|
462 | while (count--) |
|
|
463 | { |
|
|
464 | base->head = 0; |
|
|
465 | base->events = EV_NONE; |
|
|
466 | base->reify = 0; |
|
|
467 | |
|
|
468 | ++base; |
|
|
469 | } |
|
|
470 | } |
|
|
471 | |
|
|
472 | void inline_speed |
|
|
473 | fd_event (EV_P_ int fd, int revents) |
933 | fd_event_nocheck (EV_P_ int fd, int revents) |
474 | { |
934 | { |
475 | ANFD *anfd = anfds + fd; |
935 | ANFD *anfd = anfds + fd; |
476 | ev_io *w; |
936 | ev_io *w; |
477 | |
937 | |
478 | 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) |
… | |
… | |
482 | if (ev) |
942 | if (ev) |
483 | ev_feed_event (EV_A_ (W)w, ev); |
943 | ev_feed_event (EV_A_ (W)w, ev); |
484 | } |
944 | } |
485 | } |
945 | } |
486 | |
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 | |
487 | void |
958 | void |
488 | ev_feed_fd_event (EV_P_ int fd, int revents) |
959 | ev_feed_fd_event (EV_P_ int fd, int revents) |
489 | { |
960 | { |
|
|
961 | if (fd >= 0 && fd < anfdmax) |
490 | fd_event (EV_A_ fd, revents); |
962 | fd_event_nocheck (EV_A_ fd, revents); |
491 | } |
963 | } |
492 | |
964 | |
493 | 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 |
494 | fd_reify (EV_P) |
968 | fd_reify (EV_P) |
495 | { |
969 | { |
496 | int i; |
970 | int i; |
497 | |
971 | |
498 | for (i = 0; i < fdchangecnt; ++i) |
972 | for (i = 0; i < fdchangecnt; ++i) |
499 | { |
973 | { |
500 | int fd = fdchanges [i]; |
974 | int fd = fdchanges [i]; |
501 | ANFD *anfd = anfds + fd; |
975 | ANFD *anfd = anfds + fd; |
502 | ev_io *w; |
976 | ev_io *w; |
503 | |
977 | |
504 | int events = 0; |
978 | unsigned char o_events = anfd->events; |
|
|
979 | unsigned char o_reify = anfd->reify; |
505 | |
980 | |
506 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
981 | anfd->reify = 0; |
507 | events |= w->events; |
|
|
508 | |
982 | |
509 | #if EV_SELECT_IS_WINSOCKET |
983 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
510 | if (events) |
984 | if (o_reify & EV__IOFDSET) |
511 | { |
985 | { |
512 | unsigned long argp; |
986 | unsigned long arg; |
513 | anfd->handle = _get_osfhandle (fd); |
987 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
514 | 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 |
515 | } |
990 | } |
516 | #endif |
991 | #endif |
517 | |
992 | |
518 | anfd->reify = 0; |
993 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
|
|
994 | { |
|
|
995 | anfd->events = 0; |
519 | |
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) |
520 | backend_modify (EV_A_ fd, anfd->events, events); |
1005 | backend_modify (EV_A_ fd, o_events, anfd->events); |
521 | anfd->events = events; |
|
|
522 | } |
1006 | } |
523 | |
1007 | |
524 | fdchangecnt = 0; |
1008 | fdchangecnt = 0; |
525 | } |
1009 | } |
526 | |
1010 | |
527 | void inline_size |
1011 | /* something about the given fd changed */ |
|
|
1012 | inline_size void |
528 | fd_change (EV_P_ int fd) |
1013 | fd_change (EV_P_ int fd, int flags) |
529 | { |
1014 | { |
530 | if (expect_false (anfds [fd].reify)) |
1015 | unsigned char reify = anfds [fd].reify; |
531 | return; |
|
|
532 | |
|
|
533 | anfds [fd].reify = 1; |
1016 | anfds [fd].reify |= flags; |
534 | |
1017 | |
|
|
1018 | if (expect_true (!reify)) |
|
|
1019 | { |
535 | ++fdchangecnt; |
1020 | ++fdchangecnt; |
536 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1021 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
537 | fdchanges [fdchangecnt - 1] = fd; |
1022 | fdchanges [fdchangecnt - 1] = fd; |
|
|
1023 | } |
538 | } |
1024 | } |
539 | |
1025 | |
540 | void inline_speed |
1026 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1027 | inline_speed void |
541 | fd_kill (EV_P_ int fd) |
1028 | fd_kill (EV_P_ int fd) |
542 | { |
1029 | { |
543 | ev_io *w; |
1030 | ev_io *w; |
544 | |
1031 | |
545 | while ((w = (ev_io *)anfds [fd].head)) |
1032 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
547 | ev_io_stop (EV_A_ w); |
1034 | ev_io_stop (EV_A_ w); |
548 | 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); |
549 | } |
1036 | } |
550 | } |
1037 | } |
551 | |
1038 | |
552 | int inline_size |
1039 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1040 | inline_size int |
553 | fd_valid (int fd) |
1041 | fd_valid (int fd) |
554 | { |
1042 | { |
555 | #ifdef _WIN32 |
1043 | #ifdef _WIN32 |
556 | return _get_osfhandle (fd) != -1; |
1044 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
557 | #else |
1045 | #else |
558 | return fcntl (fd, F_GETFD) != -1; |
1046 | return fcntl (fd, F_GETFD) != -1; |
559 | #endif |
1047 | #endif |
560 | } |
1048 | } |
561 | |
1049 | |
… | |
… | |
565 | { |
1053 | { |
566 | int fd; |
1054 | int fd; |
567 | |
1055 | |
568 | for (fd = 0; fd < anfdmax; ++fd) |
1056 | for (fd = 0; fd < anfdmax; ++fd) |
569 | if (anfds [fd].events) |
1057 | if (anfds [fd].events) |
570 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1058 | if (!fd_valid (fd) && errno == EBADF) |
571 | fd_kill (EV_A_ fd); |
1059 | fd_kill (EV_A_ fd); |
572 | } |
1060 | } |
573 | |
1061 | |
574 | /* 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 */ |
575 | static void noinline |
1063 | static void noinline |
… | |
… | |
579 | |
1067 | |
580 | for (fd = anfdmax; fd--; ) |
1068 | for (fd = anfdmax; fd--; ) |
581 | if (anfds [fd].events) |
1069 | if (anfds [fd].events) |
582 | { |
1070 | { |
583 | fd_kill (EV_A_ fd); |
1071 | fd_kill (EV_A_ fd); |
584 | return; |
1072 | break; |
585 | } |
1073 | } |
586 | } |
1074 | } |
587 | |
1075 | |
588 | /* 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 */ |
589 | static void noinline |
1077 | static void noinline |
590 | fd_rearm_all (EV_P) |
1078 | fd_rearm_all (EV_P) |
591 | { |
1079 | { |
592 | int fd; |
1080 | int fd; |
593 | |
1081 | |
594 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
595 | for (fd = 0; fd < anfdmax; ++fd) |
1082 | for (fd = 0; fd < anfdmax; ++fd) |
596 | if (anfds [fd].events) |
1083 | if (anfds [fd].events) |
597 | { |
1084 | { |
598 | anfds [fd].events = 0; |
1085 | anfds [fd].events = 0; |
599 | fd_change (EV_A_ fd); |
1086 | anfds [fd].emask = 0; |
|
|
1087 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
600 | } |
1088 | } |
601 | } |
1089 | } |
602 | |
1090 | |
603 | /*****************************************************************************/ |
1091 | /* used to prepare libev internal fd's */ |
604 | |
1092 | /* this is not fork-safe */ |
605 | void inline_speed |
1093 | inline_speed void |
606 | upheap (WT *heap, int k) |
|
|
607 | { |
|
|
608 | WT w = heap [k]; |
|
|
609 | |
|
|
610 | while (k && heap [k >> 1]->at > w->at) |
|
|
611 | { |
|
|
612 | heap [k] = heap [k >> 1]; |
|
|
613 | ((W)heap [k])->active = k + 1; |
|
|
614 | k >>= 1; |
|
|
615 | } |
|
|
616 | |
|
|
617 | heap [k] = w; |
|
|
618 | ((W)heap [k])->active = k + 1; |
|
|
619 | |
|
|
620 | } |
|
|
621 | |
|
|
622 | void inline_speed |
|
|
623 | downheap (WT *heap, int N, int k) |
|
|
624 | { |
|
|
625 | WT w = heap [k]; |
|
|
626 | |
|
|
627 | while (k < (N >> 1)) |
|
|
628 | { |
|
|
629 | int j = k << 1; |
|
|
630 | |
|
|
631 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
|
|
632 | ++j; |
|
|
633 | |
|
|
634 | if (w->at <= heap [j]->at) |
|
|
635 | break; |
|
|
636 | |
|
|
637 | heap [k] = heap [j]; |
|
|
638 | ((W)heap [k])->active = k + 1; |
|
|
639 | k = j; |
|
|
640 | } |
|
|
641 | |
|
|
642 | heap [k] = w; |
|
|
643 | ((W)heap [k])->active = k + 1; |
|
|
644 | } |
|
|
645 | |
|
|
646 | void inline_size |
|
|
647 | adjustheap (WT *heap, int N, int k) |
|
|
648 | { |
|
|
649 | upheap (heap, k); |
|
|
650 | downheap (heap, N, k); |
|
|
651 | } |
|
|
652 | |
|
|
653 | /*****************************************************************************/ |
|
|
654 | |
|
|
655 | typedef struct |
|
|
656 | { |
|
|
657 | WL head; |
|
|
658 | sig_atomic_t volatile gotsig; |
|
|
659 | } ANSIG; |
|
|
660 | |
|
|
661 | static ANSIG *signals; |
|
|
662 | static int signalmax; |
|
|
663 | |
|
|
664 | static int sigpipe [2]; |
|
|
665 | static sig_atomic_t volatile gotsig; |
|
|
666 | static ev_io sigev; |
|
|
667 | |
|
|
668 | void inline_size |
|
|
669 | signals_init (ANSIG *base, int count) |
|
|
670 | { |
|
|
671 | while (count--) |
|
|
672 | { |
|
|
673 | base->head = 0; |
|
|
674 | base->gotsig = 0; |
|
|
675 | |
|
|
676 | ++base; |
|
|
677 | } |
|
|
678 | } |
|
|
679 | |
|
|
680 | static void |
|
|
681 | sighandler (int signum) |
|
|
682 | { |
|
|
683 | #if _WIN32 |
|
|
684 | signal (signum, sighandler); |
|
|
685 | #endif |
|
|
686 | |
|
|
687 | signals [signum - 1].gotsig = 1; |
|
|
688 | |
|
|
689 | if (!gotsig) |
|
|
690 | { |
|
|
691 | int old_errno = errno; |
|
|
692 | gotsig = 1; |
|
|
693 | write (sigpipe [1], &signum, 1); |
|
|
694 | errno = old_errno; |
|
|
695 | } |
|
|
696 | } |
|
|
697 | |
|
|
698 | void noinline |
|
|
699 | ev_feed_signal_event (EV_P_ int signum) |
|
|
700 | { |
|
|
701 | WL w; |
|
|
702 | |
|
|
703 | #if EV_MULTIPLICITY |
|
|
704 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
705 | #endif |
|
|
706 | |
|
|
707 | --signum; |
|
|
708 | |
|
|
709 | if (signum < 0 || signum >= signalmax) |
|
|
710 | return; |
|
|
711 | |
|
|
712 | signals [signum].gotsig = 0; |
|
|
713 | |
|
|
714 | for (w = signals [signum].head; w; w = w->next) |
|
|
715 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
716 | } |
|
|
717 | |
|
|
718 | static void |
|
|
719 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
720 | { |
|
|
721 | int signum; |
|
|
722 | |
|
|
723 | read (sigpipe [0], &revents, 1); |
|
|
724 | gotsig = 0; |
|
|
725 | |
|
|
726 | for (signum = signalmax; signum--; ) |
|
|
727 | if (signals [signum].gotsig) |
|
|
728 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
729 | } |
|
|
730 | |
|
|
731 | void inline_size |
|
|
732 | fd_intern (int fd) |
1094 | fd_intern (int fd) |
733 | { |
1095 | { |
734 | #ifdef _WIN32 |
1096 | #ifdef _WIN32 |
735 | int arg = 1; |
1097 | unsigned long arg = 1; |
736 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1098 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
737 | #else |
1099 | #else |
738 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1100 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
739 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1101 | fcntl (fd, F_SETFL, O_NONBLOCK); |
740 | #endif |
1102 | #endif |
741 | } |
1103 | } |
742 | |
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 | |
743 | static void noinline |
1268 | static void noinline |
744 | siginit (EV_P) |
1269 | evpipe_init (EV_P) |
745 | { |
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 | |
746 | fd_intern (sigpipe [0]); |
1290 | fd_intern (evpipe [0]); |
747 | fd_intern (sigpipe [1]); |
1291 | fd_intern (evpipe [1]); |
|
|
1292 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1293 | } |
748 | |
1294 | |
749 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
750 | ev_io_start (EV_A_ &sigev); |
1295 | ev_io_start (EV_A_ &pipe_w); |
751 | 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 |
752 | } |
1372 | } |
753 | |
1373 | |
754 | /*****************************************************************************/ |
1374 | /*****************************************************************************/ |
755 | |
1375 | |
756 | 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 |
757 | |
1382 | |
758 | #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]; |
759 | |
1441 | |
760 | static ev_signal childev; |
1442 | static ev_signal childev; |
761 | |
1443 | |
762 | 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 |
763 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1450 | child_reap (EV_P_ int chain, int pid, int status) |
764 | { |
1451 | { |
765 | ev_child *w; |
1452 | ev_child *w; |
|
|
1453 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
766 | |
1454 | |
767 | 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 | { |
768 | if (w->pid == pid || !w->pid) |
1457 | if ((w->pid == pid || !w->pid) |
|
|
1458 | && (!traced || (w->flags & 1))) |
769 | { |
1459 | { |
770 | ev_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 */ |
771 | w->rpid = pid; |
1461 | w->rpid = pid; |
772 | w->rstatus = status; |
1462 | w->rstatus = status; |
773 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1463 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
774 | } |
1464 | } |
|
|
1465 | } |
775 | } |
1466 | } |
776 | |
1467 | |
777 | #ifndef WCONTINUED |
1468 | #ifndef WCONTINUED |
778 | # define WCONTINUED 0 |
1469 | # define WCONTINUED 0 |
779 | #endif |
1470 | #endif |
780 | |
1471 | |
|
|
1472 | /* called on sigchld etc., calls waitpid */ |
781 | static void |
1473 | static void |
782 | childcb (EV_P_ ev_signal *sw, int revents) |
1474 | childcb (EV_P_ ev_signal *sw, int revents) |
783 | { |
1475 | { |
784 | int pid, status; |
1476 | int pid, status; |
785 | |
1477 | |
… | |
… | |
788 | if (!WCONTINUED |
1480 | if (!WCONTINUED |
789 | || errno != EINVAL |
1481 | || errno != EINVAL |
790 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1482 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
791 | return; |
1483 | return; |
792 | |
1484 | |
793 | /* 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 */ |
794 | /* 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 */ |
795 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1487 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
796 | |
1488 | |
797 | child_reap (EV_A_ sw, pid, pid, status); |
1489 | child_reap (EV_A_ pid, pid, status); |
798 | if (EV_PID_HASHSIZE > 1) |
1490 | if ((EV_PID_HASHSIZE) > 1) |
799 | 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 */ |
800 | } |
1492 | } |
801 | |
1493 | |
802 | #endif |
1494 | #endif |
803 | |
1495 | |
804 | /*****************************************************************************/ |
1496 | /*****************************************************************************/ |
805 | |
1497 | |
|
|
1498 | #if EV_USE_IOCP |
|
|
1499 | # include "ev_iocp.c" |
|
|
1500 | #endif |
806 | #if EV_USE_PORT |
1501 | #if EV_USE_PORT |
807 | # include "ev_port.c" |
1502 | # include "ev_port.c" |
808 | #endif |
1503 | #endif |
809 | #if EV_USE_KQUEUE |
1504 | #if EV_USE_KQUEUE |
810 | # include "ev_kqueue.c" |
1505 | # include "ev_kqueue.c" |
… | |
… | |
866 | /* kqueue is borked on everything but netbsd apparently */ |
1561 | /* kqueue is borked on everything but netbsd apparently */ |
867 | /* 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 */ |
868 | flags &= ~EVBACKEND_KQUEUE; |
1563 | flags &= ~EVBACKEND_KQUEUE; |
869 | #endif |
1564 | #endif |
870 | #ifdef __APPLE__ |
1565 | #ifdef __APPLE__ |
871 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1566 | /* only select works correctly on that "unix-certified" platform */ |
872 | 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) */ |
873 | #endif |
1572 | #endif |
874 | |
1573 | |
875 | return flags; |
1574 | return flags; |
876 | } |
1575 | } |
877 | |
1576 | |
878 | unsigned int |
1577 | unsigned int |
879 | ev_embeddable_backends (void) |
1578 | ev_embeddable_backends (void) |
880 | { |
1579 | { |
881 | return EVBACKEND_EPOLL |
1580 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
882 | | EVBACKEND_KQUEUE |
1581 | |
883 | | 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; |
884 | } |
1587 | } |
885 | |
1588 | |
886 | unsigned int |
1589 | unsigned int |
887 | ev_backend (EV_P) |
1590 | ev_backend (EV_P) |
888 | { |
1591 | { |
889 | return backend; |
1592 | return backend; |
890 | } |
1593 | } |
891 | |
1594 | |
|
|
1595 | #if EV_FEATURE_API |
|
|
1596 | unsigned int |
|
|
1597 | ev_iteration (EV_P) |
|
|
1598 | { |
|
|
1599 | return loop_count; |
|
|
1600 | } |
|
|
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 */ |
892 | static void noinline |
1645 | static void noinline |
893 | loop_init (EV_P_ unsigned int flags) |
1646 | loop_init (EV_P_ unsigned int flags) |
894 | { |
1647 | { |
895 | if (!backend) |
1648 | if (!backend) |
896 | { |
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 | |
897 | #if EV_USE_MONOTONIC |
1660 | #if EV_USE_MONOTONIC |
|
|
1661 | if (!have_monotonic) |
898 | { |
1662 | { |
899 | struct timespec ts; |
1663 | struct timespec ts; |
|
|
1664 | |
900 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1665 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
901 | have_monotonic = 1; |
1666 | have_monotonic = 1; |
902 | } |
1667 | } |
903 | #endif |
1668 | #endif |
904 | |
1669 | |
905 | ev_rt_now = ev_time (); |
1670 | /* pid check not overridable via env */ |
906 | mn_now = get_clock (); |
1671 | #ifndef _WIN32 |
907 | now_floor = mn_now; |
1672 | if (flags & EVFLAG_FORKCHECK) |
908 | rtmn_diff = ev_rt_now - mn_now; |
1673 | curpid = getpid (); |
|
|
1674 | #endif |
909 | |
1675 | |
910 | if (!(flags & EVFLAG_NOENV) |
1676 | if (!(flags & EVFLAG_NOENV) |
911 | && !enable_secure () |
1677 | && !enable_secure () |
912 | && getenv ("LIBEV_FLAGS")) |
1678 | && getenv ("LIBEV_FLAGS")) |
913 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1679 | flags = atoi (getenv ("LIBEV_FLAGS")); |
914 | |
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 | |
915 | if (!(flags & 0x0000ffffUL)) |
1704 | if (!(flags & 0x0000ffffU)) |
916 | flags |= ev_recommended_backends (); |
1705 | flags |= ev_recommended_backends (); |
917 | |
1706 | |
918 | backend = 0; |
|
|
919 | backend_fd = -1; |
|
|
920 | #if EV_USE_INOTIFY |
1707 | #if EV_USE_IOCP |
921 | fs_fd = -2; |
1708 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
922 | #endif |
1709 | #endif |
923 | |
|
|
924 | #if EV_USE_PORT |
1710 | #if EV_USE_PORT |
925 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1711 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
926 | #endif |
1712 | #endif |
927 | #if EV_USE_KQUEUE |
1713 | #if EV_USE_KQUEUE |
928 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1714 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
935 | #endif |
1721 | #endif |
936 | #if EV_USE_SELECT |
1722 | #if EV_USE_SELECT |
937 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1723 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
938 | #endif |
1724 | #endif |
939 | |
1725 | |
|
|
1726 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1727 | |
|
|
1728 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
940 | ev_init (&sigev, sigcb); |
1729 | ev_init (&pipe_w, pipecb); |
941 | ev_set_priority (&sigev, EV_MAXPRI); |
1730 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1731 | #endif |
942 | } |
1732 | } |
943 | } |
1733 | } |
944 | |
1734 | |
945 | static void noinline |
1735 | /* free up a loop structure */ |
|
|
1736 | void |
946 | loop_destroy (EV_P) |
1737 | ev_loop_destroy (EV_P) |
947 | { |
1738 | { |
948 | int i; |
1739 | int i; |
|
|
1740 | |
|
|
1741 | #if EV_MULTIPLICITY |
|
|
1742 | /* mimic free (0) */ |
|
|
1743 | if (!EV_A) |
|
|
1744 | return; |
|
|
1745 | #endif |
|
|
1746 | |
|
|
1747 | #if EV_CLEANUP_ENABLE |
|
|
1748 | /* queue cleanup watchers (and execute them) */ |
|
|
1749 | if (expect_false (cleanupcnt)) |
|
|
1750 | { |
|
|
1751 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1752 | EV_INVOKE_PENDING; |
|
|
1753 | } |
|
|
1754 | #endif |
|
|
1755 | |
|
|
1756 | #if EV_CHILD_ENABLE |
|
|
1757 | if (ev_is_active (&childev)) |
|
|
1758 | { |
|
|
1759 | ev_ref (EV_A); /* child watcher */ |
|
|
1760 | ev_signal_stop (EV_A_ &childev); |
|
|
1761 | } |
|
|
1762 | #endif |
|
|
1763 | |
|
|
1764 | if (ev_is_active (&pipe_w)) |
|
|
1765 | { |
|
|
1766 | /*ev_ref (EV_A);*/ |
|
|
1767 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
|
|
1768 | |
|
|
1769 | #if EV_USE_EVENTFD |
|
|
1770 | if (evfd >= 0) |
|
|
1771 | close (evfd); |
|
|
1772 | #endif |
|
|
1773 | |
|
|
1774 | if (evpipe [0] >= 0) |
|
|
1775 | { |
|
|
1776 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1777 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1778 | } |
|
|
1779 | } |
|
|
1780 | |
|
|
1781 | #if EV_USE_SIGNALFD |
|
|
1782 | if (ev_is_active (&sigfd_w)) |
|
|
1783 | close (sigfd); |
|
|
1784 | #endif |
949 | |
1785 | |
950 | #if EV_USE_INOTIFY |
1786 | #if EV_USE_INOTIFY |
951 | if (fs_fd >= 0) |
1787 | if (fs_fd >= 0) |
952 | close (fs_fd); |
1788 | close (fs_fd); |
953 | #endif |
1789 | #endif |
954 | |
1790 | |
955 | if (backend_fd >= 0) |
1791 | if (backend_fd >= 0) |
956 | close (backend_fd); |
1792 | close (backend_fd); |
957 | |
1793 | |
|
|
1794 | #if EV_USE_IOCP |
|
|
1795 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1796 | #endif |
958 | #if EV_USE_PORT |
1797 | #if EV_USE_PORT |
959 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1798 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
960 | #endif |
1799 | #endif |
961 | #if EV_USE_KQUEUE |
1800 | #if EV_USE_KQUEUE |
962 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1801 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
970 | #if EV_USE_SELECT |
1809 | #if EV_USE_SELECT |
971 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1810 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
972 | #endif |
1811 | #endif |
973 | |
1812 | |
974 | for (i = NUMPRI; i--; ) |
1813 | for (i = NUMPRI; i--; ) |
|
|
1814 | { |
975 | array_free (pending, [i]); |
1815 | array_free (pending, [i]); |
|
|
1816 | #if EV_IDLE_ENABLE |
|
|
1817 | array_free (idle, [i]); |
|
|
1818 | #endif |
|
|
1819 | } |
|
|
1820 | |
|
|
1821 | ev_free (anfds); anfds = 0; anfdmax = 0; |
976 | |
1822 | |
977 | /* have to use the microsoft-never-gets-it-right macro */ |
1823 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1824 | array_free (rfeed, EMPTY); |
978 | array_free (fdchange, EMPTY0); |
1825 | array_free (fdchange, EMPTY); |
979 | array_free (timer, EMPTY0); |
1826 | array_free (timer, EMPTY); |
980 | #if EV_PERIODIC_ENABLE |
1827 | #if EV_PERIODIC_ENABLE |
981 | array_free (periodic, EMPTY0); |
1828 | array_free (periodic, EMPTY); |
982 | #endif |
1829 | #endif |
|
|
1830 | #if EV_FORK_ENABLE |
|
|
1831 | array_free (fork, EMPTY); |
|
|
1832 | #endif |
|
|
1833 | #if EV_CLEANUP_ENABLE |
983 | array_free (idle, EMPTY0); |
1834 | array_free (cleanup, EMPTY); |
|
|
1835 | #endif |
984 | array_free (prepare, EMPTY0); |
1836 | array_free (prepare, EMPTY); |
985 | array_free (check, EMPTY0); |
1837 | array_free (check, EMPTY); |
|
|
1838 | #if EV_ASYNC_ENABLE |
|
|
1839 | array_free (async, EMPTY); |
|
|
1840 | #endif |
986 | |
1841 | |
987 | backend = 0; |
1842 | backend = 0; |
988 | } |
|
|
989 | |
1843 | |
|
|
1844 | #if EV_MULTIPLICITY |
|
|
1845 | if (ev_is_default_loop (EV_A)) |
|
|
1846 | #endif |
|
|
1847 | ev_default_loop_ptr = 0; |
|
|
1848 | #if EV_MULTIPLICITY |
|
|
1849 | else |
|
|
1850 | ev_free (EV_A); |
|
|
1851 | #endif |
|
|
1852 | } |
|
|
1853 | |
|
|
1854 | #if EV_USE_INOTIFY |
990 | void inline_size infy_fork (EV_P); |
1855 | inline_size void infy_fork (EV_P); |
|
|
1856 | #endif |
991 | |
1857 | |
992 | void inline_size |
1858 | inline_size void |
993 | loop_fork (EV_P) |
1859 | loop_fork (EV_P) |
994 | { |
1860 | { |
995 | #if EV_USE_PORT |
1861 | #if EV_USE_PORT |
996 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1862 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
997 | #endif |
1863 | #endif |
… | |
… | |
1003 | #endif |
1869 | #endif |
1004 | #if EV_USE_INOTIFY |
1870 | #if EV_USE_INOTIFY |
1005 | infy_fork (EV_A); |
1871 | infy_fork (EV_A); |
1006 | #endif |
1872 | #endif |
1007 | |
1873 | |
1008 | if (ev_is_active (&sigev)) |
1874 | if (ev_is_active (&pipe_w)) |
1009 | { |
1875 | { |
1010 | /* default loop */ |
1876 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1877 | /* while we modify the fd vars */ |
|
|
1878 | sig_pending = 1; |
|
|
1879 | #if EV_ASYNC_ENABLE |
|
|
1880 | async_pending = 1; |
|
|
1881 | #endif |
1011 | |
1882 | |
1012 | ev_ref (EV_A); |
1883 | ev_ref (EV_A); |
1013 | ev_io_stop (EV_A_ &sigev); |
1884 | ev_io_stop (EV_A_ &pipe_w); |
1014 | close (sigpipe [0]); |
|
|
1015 | close (sigpipe [1]); |
|
|
1016 | |
1885 | |
1017 | while (pipe (sigpipe)) |
1886 | #if EV_USE_EVENTFD |
1018 | syserr ("(libev) error creating pipe"); |
1887 | if (evfd >= 0) |
|
|
1888 | close (evfd); |
|
|
1889 | #endif |
1019 | |
1890 | |
|
|
1891 | if (evpipe [0] >= 0) |
|
|
1892 | { |
|
|
1893 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1894 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1895 | } |
|
|
1896 | |
|
|
1897 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1020 | siginit (EV_A); |
1898 | evpipe_init (EV_A); |
|
|
1899 | /* now iterate over everything, in case we missed something */ |
|
|
1900 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1901 | #endif |
1021 | } |
1902 | } |
1022 | |
1903 | |
1023 | postfork = 0; |
1904 | postfork = 0; |
1024 | } |
1905 | } |
|
|
1906 | |
|
|
1907 | #if EV_MULTIPLICITY |
|
|
1908 | |
|
|
1909 | struct ev_loop * |
|
|
1910 | ev_loop_new (unsigned int flags) |
|
|
1911 | { |
|
|
1912 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1913 | |
|
|
1914 | memset (EV_A, 0, sizeof (struct ev_loop)); |
|
|
1915 | loop_init (EV_A_ flags); |
|
|
1916 | |
|
|
1917 | if (ev_backend (EV_A)) |
|
|
1918 | return EV_A; |
|
|
1919 | |
|
|
1920 | ev_free (EV_A); |
|
|
1921 | return 0; |
|
|
1922 | } |
|
|
1923 | |
|
|
1924 | #endif /* multiplicity */ |
|
|
1925 | |
|
|
1926 | #if EV_VERIFY |
|
|
1927 | static void noinline |
|
|
1928 | verify_watcher (EV_P_ W w) |
|
|
1929 | { |
|
|
1930 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1931 | |
|
|
1932 | if (w->pending) |
|
|
1933 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1934 | } |
|
|
1935 | |
|
|
1936 | static void noinline |
|
|
1937 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1938 | { |
|
|
1939 | int i; |
|
|
1940 | |
|
|
1941 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1942 | { |
|
|
1943 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1944 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1945 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1946 | |
|
|
1947 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1948 | } |
|
|
1949 | } |
|
|
1950 | |
|
|
1951 | static void noinline |
|
|
1952 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1953 | { |
|
|
1954 | while (cnt--) |
|
|
1955 | { |
|
|
1956 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1957 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1958 | } |
|
|
1959 | } |
|
|
1960 | #endif |
|
|
1961 | |
|
|
1962 | #if EV_FEATURE_API |
|
|
1963 | void |
|
|
1964 | ev_verify (EV_P) |
|
|
1965 | { |
|
|
1966 | #if EV_VERIFY |
|
|
1967 | int i; |
|
|
1968 | WL w; |
|
|
1969 | |
|
|
1970 | assert (activecnt >= -1); |
|
|
1971 | |
|
|
1972 | assert (fdchangemax >= fdchangecnt); |
|
|
1973 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1974 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1975 | |
|
|
1976 | assert (anfdmax >= 0); |
|
|
1977 | for (i = 0; i < anfdmax; ++i) |
|
|
1978 | for (w = anfds [i].head; w; w = w->next) |
|
|
1979 | { |
|
|
1980 | verify_watcher (EV_A_ (W)w); |
|
|
1981 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1982 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1983 | } |
|
|
1984 | |
|
|
1985 | assert (timermax >= timercnt); |
|
|
1986 | verify_heap (EV_A_ timers, timercnt); |
|
|
1987 | |
|
|
1988 | #if EV_PERIODIC_ENABLE |
|
|
1989 | assert (periodicmax >= periodiccnt); |
|
|
1990 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1991 | #endif |
|
|
1992 | |
|
|
1993 | for (i = NUMPRI; i--; ) |
|
|
1994 | { |
|
|
1995 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1996 | #if EV_IDLE_ENABLE |
|
|
1997 | assert (idleall >= 0); |
|
|
1998 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1999 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
2000 | #endif |
|
|
2001 | } |
|
|
2002 | |
|
|
2003 | #if EV_FORK_ENABLE |
|
|
2004 | assert (forkmax >= forkcnt); |
|
|
2005 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
2006 | #endif |
|
|
2007 | |
|
|
2008 | #if EV_CLEANUP_ENABLE |
|
|
2009 | assert (cleanupmax >= cleanupcnt); |
|
|
2010 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2011 | #endif |
|
|
2012 | |
|
|
2013 | #if EV_ASYNC_ENABLE |
|
|
2014 | assert (asyncmax >= asynccnt); |
|
|
2015 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
2016 | #endif |
|
|
2017 | |
|
|
2018 | #if EV_PREPARE_ENABLE |
|
|
2019 | assert (preparemax >= preparecnt); |
|
|
2020 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2021 | #endif |
|
|
2022 | |
|
|
2023 | #if EV_CHECK_ENABLE |
|
|
2024 | assert (checkmax >= checkcnt); |
|
|
2025 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2026 | #endif |
|
|
2027 | |
|
|
2028 | # if 0 |
|
|
2029 | #if EV_CHILD_ENABLE |
|
|
2030 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2031 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2032 | #endif |
|
|
2033 | # endif |
|
|
2034 | #endif |
|
|
2035 | } |
|
|
2036 | #endif |
1025 | |
2037 | |
1026 | #if EV_MULTIPLICITY |
2038 | #if EV_MULTIPLICITY |
1027 | struct ev_loop * |
2039 | struct ev_loop * |
1028 | ev_loop_new (unsigned int flags) |
|
|
1029 | { |
|
|
1030 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1031 | |
|
|
1032 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1033 | |
|
|
1034 | loop_init (EV_A_ flags); |
|
|
1035 | |
|
|
1036 | if (ev_backend (EV_A)) |
|
|
1037 | return loop; |
|
|
1038 | |
|
|
1039 | return 0; |
|
|
1040 | } |
|
|
1041 | |
|
|
1042 | void |
|
|
1043 | ev_loop_destroy (EV_P) |
|
|
1044 | { |
|
|
1045 | loop_destroy (EV_A); |
|
|
1046 | ev_free (loop); |
|
|
1047 | } |
|
|
1048 | |
|
|
1049 | void |
|
|
1050 | ev_loop_fork (EV_P) |
|
|
1051 | { |
|
|
1052 | postfork = 1; |
|
|
1053 | } |
|
|
1054 | |
|
|
1055 | #endif |
|
|
1056 | |
|
|
1057 | #if EV_MULTIPLICITY |
|
|
1058 | struct ev_loop * |
|
|
1059 | ev_default_loop_init (unsigned int flags) |
|
|
1060 | #else |
2040 | #else |
1061 | int |
2041 | int |
|
|
2042 | #endif |
1062 | ev_default_loop (unsigned int flags) |
2043 | ev_default_loop (unsigned int flags) |
1063 | #endif |
|
|
1064 | { |
2044 | { |
1065 | if (sigpipe [0] == sigpipe [1]) |
|
|
1066 | if (pipe (sigpipe)) |
|
|
1067 | return 0; |
|
|
1068 | |
|
|
1069 | if (!ev_default_loop_ptr) |
2045 | if (!ev_default_loop_ptr) |
1070 | { |
2046 | { |
1071 | #if EV_MULTIPLICITY |
2047 | #if EV_MULTIPLICITY |
1072 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2048 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1073 | #else |
2049 | #else |
1074 | ev_default_loop_ptr = 1; |
2050 | ev_default_loop_ptr = 1; |
1075 | #endif |
2051 | #endif |
1076 | |
2052 | |
1077 | loop_init (EV_A_ flags); |
2053 | loop_init (EV_A_ flags); |
1078 | |
2054 | |
1079 | if (ev_backend (EV_A)) |
2055 | if (ev_backend (EV_A)) |
1080 | { |
2056 | { |
1081 | siginit (EV_A); |
2057 | #if EV_CHILD_ENABLE |
1082 | |
|
|
1083 | #ifndef _WIN32 |
|
|
1084 | ev_signal_init (&childev, childcb, SIGCHLD); |
2058 | ev_signal_init (&childev, childcb, SIGCHLD); |
1085 | ev_set_priority (&childev, EV_MAXPRI); |
2059 | ev_set_priority (&childev, EV_MAXPRI); |
1086 | ev_signal_start (EV_A_ &childev); |
2060 | ev_signal_start (EV_A_ &childev); |
1087 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2061 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1088 | #endif |
2062 | #endif |
… | |
… | |
1093 | |
2067 | |
1094 | return ev_default_loop_ptr; |
2068 | return ev_default_loop_ptr; |
1095 | } |
2069 | } |
1096 | |
2070 | |
1097 | void |
2071 | void |
1098 | ev_default_destroy (void) |
2072 | ev_loop_fork (EV_P) |
1099 | { |
2073 | { |
1100 | #if EV_MULTIPLICITY |
2074 | postfork = 1; /* must be in line with ev_default_fork */ |
1101 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1102 | #endif |
|
|
1103 | |
|
|
1104 | #ifndef _WIN32 |
|
|
1105 | ev_ref (EV_A); /* child watcher */ |
|
|
1106 | ev_signal_stop (EV_A_ &childev); |
|
|
1107 | #endif |
|
|
1108 | |
|
|
1109 | ev_ref (EV_A); /* signal watcher */ |
|
|
1110 | ev_io_stop (EV_A_ &sigev); |
|
|
1111 | |
|
|
1112 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1113 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1114 | |
|
|
1115 | loop_destroy (EV_A); |
|
|
1116 | } |
|
|
1117 | |
|
|
1118 | void |
|
|
1119 | ev_default_fork (void) |
|
|
1120 | { |
|
|
1121 | #if EV_MULTIPLICITY |
|
|
1122 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1123 | #endif |
|
|
1124 | |
|
|
1125 | if (backend) |
|
|
1126 | postfork = 1; |
|
|
1127 | } |
2075 | } |
1128 | |
2076 | |
1129 | /*****************************************************************************/ |
2077 | /*****************************************************************************/ |
1130 | |
2078 | |
1131 | int inline_size |
2079 | void |
1132 | any_pending (EV_P) |
2080 | ev_invoke (EV_P_ void *w, int revents) |
|
|
2081 | { |
|
|
2082 | EV_CB_INVOKE ((W)w, revents); |
|
|
2083 | } |
|
|
2084 | |
|
|
2085 | unsigned int |
|
|
2086 | ev_pending_count (EV_P) |
1133 | { |
2087 | { |
1134 | int pri; |
2088 | int pri; |
|
|
2089 | unsigned int count = 0; |
1135 | |
2090 | |
1136 | for (pri = NUMPRI; pri--; ) |
2091 | for (pri = NUMPRI; pri--; ) |
1137 | if (pendingcnt [pri]) |
2092 | count += pendingcnt [pri]; |
1138 | return 1; |
|
|
1139 | |
2093 | |
1140 | return 0; |
2094 | return count; |
1141 | } |
2095 | } |
1142 | |
2096 | |
1143 | void inline_speed |
2097 | void noinline |
1144 | call_pending (EV_P) |
2098 | ev_invoke_pending (EV_P) |
1145 | { |
2099 | { |
1146 | int pri; |
2100 | int pri; |
1147 | |
2101 | |
1148 | for (pri = NUMPRI; pri--; ) |
2102 | for (pri = NUMPRI; pri--; ) |
1149 | while (pendingcnt [pri]) |
2103 | while (pendingcnt [pri]) |
1150 | { |
2104 | { |
1151 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2105 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1152 | |
2106 | |
1153 | if (expect_true (p->w)) |
|
|
1154 | { |
|
|
1155 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2107 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2108 | /* ^ this is no longer true, as pending_w could be here */ |
1156 | |
2109 | |
1157 | p->w->pending = 0; |
2110 | p->w->pending = 0; |
1158 | EV_CB_INVOKE (p->w, p->events); |
2111 | EV_CB_INVOKE (p->w, p->events); |
1159 | } |
2112 | EV_FREQUENT_CHECK; |
1160 | } |
2113 | } |
1161 | } |
2114 | } |
1162 | |
2115 | |
1163 | void inline_size |
2116 | #if EV_IDLE_ENABLE |
|
|
2117 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2118 | /* only when higher priorities are idle" logic */ |
|
|
2119 | inline_size void |
|
|
2120 | idle_reify (EV_P) |
|
|
2121 | { |
|
|
2122 | if (expect_false (idleall)) |
|
|
2123 | { |
|
|
2124 | int pri; |
|
|
2125 | |
|
|
2126 | for (pri = NUMPRI; pri--; ) |
|
|
2127 | { |
|
|
2128 | if (pendingcnt [pri]) |
|
|
2129 | break; |
|
|
2130 | |
|
|
2131 | if (idlecnt [pri]) |
|
|
2132 | { |
|
|
2133 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
2134 | break; |
|
|
2135 | } |
|
|
2136 | } |
|
|
2137 | } |
|
|
2138 | } |
|
|
2139 | #endif |
|
|
2140 | |
|
|
2141 | /* make timers pending */ |
|
|
2142 | inline_size void |
1164 | timers_reify (EV_P) |
2143 | timers_reify (EV_P) |
1165 | { |
2144 | { |
|
|
2145 | EV_FREQUENT_CHECK; |
|
|
2146 | |
1166 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
2147 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1167 | { |
2148 | { |
1168 | ev_timer *w = timers [0]; |
2149 | do |
1169 | |
|
|
1170 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1171 | |
|
|
1172 | /* first reschedule or stop timer */ |
|
|
1173 | if (w->repeat) |
|
|
1174 | { |
2150 | { |
|
|
2151 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2152 | |
|
|
2153 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2154 | |
|
|
2155 | /* first reschedule or stop timer */ |
|
|
2156 | if (w->repeat) |
|
|
2157 | { |
|
|
2158 | ev_at (w) += w->repeat; |
|
|
2159 | if (ev_at (w) < mn_now) |
|
|
2160 | ev_at (w) = mn_now; |
|
|
2161 | |
1175 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2162 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1176 | |
2163 | |
1177 | ((WT)w)->at += w->repeat; |
2164 | ANHE_at_cache (timers [HEAP0]); |
1178 | if (((WT)w)->at < mn_now) |
|
|
1179 | ((WT)w)->at = mn_now; |
|
|
1180 | |
|
|
1181 | downheap ((WT *)timers, timercnt, 0); |
2165 | downheap (timers, timercnt, HEAP0); |
|
|
2166 | } |
|
|
2167 | else |
|
|
2168 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2169 | |
|
|
2170 | EV_FREQUENT_CHECK; |
|
|
2171 | feed_reverse (EV_A_ (W)w); |
1182 | } |
2172 | } |
1183 | else |
2173 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1184 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1185 | |
2174 | |
1186 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2175 | feed_reverse_done (EV_A_ EV_TIMER); |
1187 | } |
2176 | } |
1188 | } |
2177 | } |
1189 | |
2178 | |
1190 | #if EV_PERIODIC_ENABLE |
2179 | #if EV_PERIODIC_ENABLE |
1191 | void inline_size |
2180 | /* make periodics pending */ |
|
|
2181 | inline_size void |
1192 | periodics_reify (EV_P) |
2182 | periodics_reify (EV_P) |
1193 | { |
2183 | { |
|
|
2184 | EV_FREQUENT_CHECK; |
|
|
2185 | |
1194 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
2186 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1195 | { |
2187 | { |
1196 | ev_periodic *w = periodics [0]; |
2188 | int feed_count = 0; |
1197 | |
2189 | |
1198 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2190 | do |
1199 | |
|
|
1200 | /* first reschedule or stop timer */ |
|
|
1201 | if (w->reschedule_cb) |
|
|
1202 | { |
2191 | { |
|
|
2192 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2193 | |
|
|
2194 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2195 | |
|
|
2196 | /* first reschedule or stop timer */ |
|
|
2197 | if (w->reschedule_cb) |
|
|
2198 | { |
1203 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
2199 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2200 | |
1204 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
2201 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2202 | |
|
|
2203 | ANHE_at_cache (periodics [HEAP0]); |
1205 | downheap ((WT *)periodics, periodiccnt, 0); |
2204 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2205 | } |
|
|
2206 | else if (w->interval) |
|
|
2207 | { |
|
|
2208 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2209 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2210 | /* this might happen because of floating point inexactness */ |
|
|
2211 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2212 | { |
|
|
2213 | ev_at (w) += w->interval; |
|
|
2214 | |
|
|
2215 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2216 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2217 | /* has effectively asked to get triggered more often than possible */ |
|
|
2218 | if (ev_at (w) < ev_rt_now) |
|
|
2219 | ev_at (w) = ev_rt_now; |
|
|
2220 | } |
|
|
2221 | |
|
|
2222 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2223 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2224 | } |
|
|
2225 | else |
|
|
2226 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2227 | |
|
|
2228 | EV_FREQUENT_CHECK; |
|
|
2229 | feed_reverse (EV_A_ (W)w); |
1206 | } |
2230 | } |
1207 | else if (w->interval) |
2231 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1208 | { |
|
|
1209 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
|
|
1210 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1211 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1212 | } |
|
|
1213 | else |
|
|
1214 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1215 | |
2232 | |
1216 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2233 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1217 | } |
2234 | } |
1218 | } |
2235 | } |
1219 | |
2236 | |
|
|
2237 | /* simply recalculate all periodics */ |
|
|
2238 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1220 | static void noinline |
2239 | static void noinline |
1221 | periodics_reschedule (EV_P) |
2240 | periodics_reschedule (EV_P) |
1222 | { |
2241 | { |
1223 | int i; |
2242 | int i; |
1224 | |
2243 | |
1225 | /* adjust periodics after time jump */ |
2244 | /* adjust periodics after time jump */ |
1226 | for (i = 0; i < periodiccnt; ++i) |
2245 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1227 | { |
2246 | { |
1228 | ev_periodic *w = periodics [i]; |
2247 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1229 | |
2248 | |
1230 | if (w->reschedule_cb) |
2249 | if (w->reschedule_cb) |
1231 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2250 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1232 | else if (w->interval) |
2251 | else if (w->interval) |
1233 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2252 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2253 | |
|
|
2254 | ANHE_at_cache (periodics [i]); |
|
|
2255 | } |
|
|
2256 | |
|
|
2257 | reheap (periodics, periodiccnt); |
|
|
2258 | } |
|
|
2259 | #endif |
|
|
2260 | |
|
|
2261 | /* adjust all timers by a given offset */ |
|
|
2262 | static void noinline |
|
|
2263 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2264 | { |
|
|
2265 | int i; |
|
|
2266 | |
|
|
2267 | for (i = 0; i < timercnt; ++i) |
1234 | } |
2268 | { |
1235 | |
2269 | ANHE *he = timers + i + HEAP0; |
1236 | /* now rebuild the heap */ |
2270 | ANHE_w (*he)->at += adjust; |
1237 | for (i = periodiccnt >> 1; i--; ) |
2271 | ANHE_at_cache (*he); |
1238 | downheap ((WT *)periodics, periodiccnt, i); |
2272 | } |
1239 | } |
2273 | } |
1240 | #endif |
|
|
1241 | |
2274 | |
1242 | int inline_size |
2275 | /* fetch new monotonic and realtime times from the kernel */ |
1243 | time_update_monotonic (EV_P) |
2276 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2277 | inline_speed void |
|
|
2278 | time_update (EV_P_ ev_tstamp max_block) |
1244 | { |
2279 | { |
|
|
2280 | #if EV_USE_MONOTONIC |
|
|
2281 | if (expect_true (have_monotonic)) |
|
|
2282 | { |
|
|
2283 | int i; |
|
|
2284 | ev_tstamp odiff = rtmn_diff; |
|
|
2285 | |
1245 | mn_now = get_clock (); |
2286 | mn_now = get_clock (); |
1246 | |
2287 | |
|
|
2288 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
2289 | /* interpolate in the meantime */ |
1247 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
2290 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1248 | { |
2291 | { |
1249 | ev_rt_now = rtmn_diff + mn_now; |
2292 | ev_rt_now = rtmn_diff + mn_now; |
1250 | return 0; |
2293 | return; |
1251 | } |
2294 | } |
1252 | else |
2295 | |
1253 | { |
|
|
1254 | now_floor = mn_now; |
2296 | now_floor = mn_now; |
1255 | ev_rt_now = ev_time (); |
2297 | ev_rt_now = ev_time (); |
1256 | return 1; |
|
|
1257 | } |
|
|
1258 | } |
|
|
1259 | |
2298 | |
1260 | void inline_size |
2299 | /* loop a few times, before making important decisions. |
1261 | time_update (EV_P) |
2300 | * on the choice of "4": one iteration isn't enough, |
1262 | { |
2301 | * in case we get preempted during the calls to |
1263 | int i; |
2302 | * ev_time and get_clock. a second call is almost guaranteed |
1264 | |
2303 | * to succeed in that case, though. and looping a few more times |
1265 | #if EV_USE_MONOTONIC |
2304 | * doesn't hurt either as we only do this on time-jumps or |
1266 | if (expect_true (have_monotonic)) |
2305 | * in the unlikely event of having been preempted here. |
1267 | { |
2306 | */ |
1268 | if (time_update_monotonic (EV_A)) |
2307 | for (i = 4; --i; ) |
1269 | { |
2308 | { |
1270 | ev_tstamp odiff = rtmn_diff; |
|
|
1271 | |
|
|
1272 | /* loop a few times, before making important decisions. |
|
|
1273 | * on the choice of "4": one iteration isn't enough, |
|
|
1274 | * in case we get preempted during the calls to |
|
|
1275 | * ev_time and get_clock. a second call is almost guarenteed |
|
|
1276 | * to succeed in that case, though. and looping a few more times |
|
|
1277 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1278 | * in the unlikely event of getting preempted here. |
|
|
1279 | */ |
|
|
1280 | for (i = 4; --i; ) |
|
|
1281 | { |
|
|
1282 | rtmn_diff = ev_rt_now - mn_now; |
2309 | rtmn_diff = ev_rt_now - mn_now; |
1283 | |
2310 | |
1284 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2311 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1285 | return; /* all is well */ |
2312 | return; /* all is well */ |
1286 | |
2313 | |
1287 | ev_rt_now = ev_time (); |
2314 | ev_rt_now = ev_time (); |
1288 | mn_now = get_clock (); |
2315 | mn_now = get_clock (); |
1289 | now_floor = mn_now; |
2316 | now_floor = mn_now; |
1290 | } |
2317 | } |
1291 | |
2318 | |
|
|
2319 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2320 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1292 | # if EV_PERIODIC_ENABLE |
2321 | # if EV_PERIODIC_ENABLE |
1293 | periodics_reschedule (EV_A); |
2322 | periodics_reschedule (EV_A); |
1294 | # endif |
2323 | # endif |
1295 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1296 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1297 | } |
|
|
1298 | } |
2324 | } |
1299 | else |
2325 | else |
1300 | #endif |
2326 | #endif |
1301 | { |
2327 | { |
1302 | ev_rt_now = ev_time (); |
2328 | ev_rt_now = ev_time (); |
1303 | |
2329 | |
1304 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
2330 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1305 | { |
2331 | { |
|
|
2332 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2333 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1306 | #if EV_PERIODIC_ENABLE |
2334 | #if EV_PERIODIC_ENABLE |
1307 | periodics_reschedule (EV_A); |
2335 | periodics_reschedule (EV_A); |
1308 | #endif |
2336 | #endif |
1309 | |
|
|
1310 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1311 | for (i = 0; i < timercnt; ++i) |
|
|
1312 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1313 | } |
2337 | } |
1314 | |
2338 | |
1315 | mn_now = ev_rt_now; |
2339 | mn_now = ev_rt_now; |
1316 | } |
2340 | } |
1317 | } |
2341 | } |
1318 | |
2342 | |
1319 | void |
2343 | void |
1320 | ev_ref (EV_P) |
|
|
1321 | { |
|
|
1322 | ++activecnt; |
|
|
1323 | } |
|
|
1324 | |
|
|
1325 | void |
|
|
1326 | ev_unref (EV_P) |
|
|
1327 | { |
|
|
1328 | --activecnt; |
|
|
1329 | } |
|
|
1330 | |
|
|
1331 | static int loop_done; |
|
|
1332 | |
|
|
1333 | void |
|
|
1334 | ev_loop (EV_P_ int flags) |
2344 | ev_run (EV_P_ int flags) |
1335 | { |
2345 | { |
1336 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2346 | #if EV_FEATURE_API |
1337 | ? EVUNLOOP_ONE |
2347 | ++loop_depth; |
1338 | : EVUNLOOP_CANCEL; |
2348 | #endif |
1339 | |
2349 | |
1340 | while (activecnt) |
2350 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2351 | |
|
|
2352 | loop_done = EVBREAK_CANCEL; |
|
|
2353 | |
|
|
2354 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
2355 | |
|
|
2356 | do |
1341 | { |
2357 | { |
1342 | /* we might have forked, so reify kernel state if necessary */ |
2358 | #if EV_VERIFY >= 2 |
|
|
2359 | ev_verify (EV_A); |
|
|
2360 | #endif |
|
|
2361 | |
|
|
2362 | #ifndef _WIN32 |
|
|
2363 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
2364 | if (expect_false (getpid () != curpid)) |
|
|
2365 | { |
|
|
2366 | curpid = getpid (); |
|
|
2367 | postfork = 1; |
|
|
2368 | } |
|
|
2369 | #endif |
|
|
2370 | |
1343 | #if EV_FORK_ENABLE |
2371 | #if EV_FORK_ENABLE |
|
|
2372 | /* we might have forked, so queue fork handlers */ |
1344 | if (expect_false (postfork)) |
2373 | if (expect_false (postfork)) |
1345 | if (forkcnt) |
2374 | if (forkcnt) |
1346 | { |
2375 | { |
1347 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2376 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1348 | call_pending (EV_A); |
2377 | EV_INVOKE_PENDING; |
1349 | } |
2378 | } |
1350 | #endif |
2379 | #endif |
1351 | |
2380 | |
|
|
2381 | #if EV_PREPARE_ENABLE |
1352 | /* queue check watchers (and execute them) */ |
2382 | /* queue prepare watchers (and execute them) */ |
1353 | if (expect_false (preparecnt)) |
2383 | if (expect_false (preparecnt)) |
1354 | { |
2384 | { |
1355 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2385 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1356 | call_pending (EV_A); |
2386 | EV_INVOKE_PENDING; |
1357 | } |
2387 | } |
|
|
2388 | #endif |
|
|
2389 | |
|
|
2390 | if (expect_false (loop_done)) |
|
|
2391 | break; |
1358 | |
2392 | |
1359 | /* we might have forked, so reify kernel state if necessary */ |
2393 | /* we might have forked, so reify kernel state if necessary */ |
1360 | if (expect_false (postfork)) |
2394 | if (expect_false (postfork)) |
1361 | loop_fork (EV_A); |
2395 | loop_fork (EV_A); |
1362 | |
2396 | |
1363 | /* update fd-related kernel structures */ |
2397 | /* update fd-related kernel structures */ |
1364 | fd_reify (EV_A); |
2398 | fd_reify (EV_A); |
1365 | |
2399 | |
1366 | /* calculate blocking time */ |
2400 | /* calculate blocking time */ |
1367 | { |
2401 | { |
1368 | double block; |
2402 | ev_tstamp waittime = 0.; |
|
|
2403 | ev_tstamp sleeptime = 0.; |
1369 | |
2404 | |
1370 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
2405 | /* remember old timestamp for io_blocktime calculation */ |
1371 | block = 0.; /* do not block at all */ |
2406 | ev_tstamp prev_mn_now = mn_now; |
1372 | else |
2407 | |
|
|
2408 | /* update time to cancel out callback processing overhead */ |
|
|
2409 | time_update (EV_A_ 1e100); |
|
|
2410 | |
|
|
2411 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
1373 | { |
2412 | { |
1374 | /* update time to cancel out callback processing overhead */ |
|
|
1375 | #if EV_USE_MONOTONIC |
|
|
1376 | if (expect_true (have_monotonic)) |
|
|
1377 | time_update_monotonic (EV_A); |
|
|
1378 | else |
|
|
1379 | #endif |
|
|
1380 | { |
|
|
1381 | ev_rt_now = ev_time (); |
|
|
1382 | mn_now = ev_rt_now; |
|
|
1383 | } |
|
|
1384 | |
|
|
1385 | block = MAX_BLOCKTIME; |
2413 | waittime = MAX_BLOCKTIME; |
1386 | |
2414 | |
1387 | if (timercnt) |
2415 | if (timercnt) |
1388 | { |
2416 | { |
1389 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2417 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1390 | if (block > to) block = to; |
2418 | if (waittime > to) waittime = to; |
1391 | } |
2419 | } |
1392 | |
2420 | |
1393 | #if EV_PERIODIC_ENABLE |
2421 | #if EV_PERIODIC_ENABLE |
1394 | if (periodiccnt) |
2422 | if (periodiccnt) |
1395 | { |
2423 | { |
1396 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2424 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1397 | if (block > to) block = to; |
2425 | if (waittime > to) waittime = to; |
1398 | } |
2426 | } |
1399 | #endif |
2427 | #endif |
1400 | |
2428 | |
|
|
2429 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
|
|
2430 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2431 | waittime = timeout_blocktime; |
|
|
2432 | |
|
|
2433 | /* extra check because io_blocktime is commonly 0 */ |
1401 | if (expect_false (block < 0.)) block = 0.; |
2434 | if (expect_false (io_blocktime)) |
|
|
2435 | { |
|
|
2436 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2437 | |
|
|
2438 | if (sleeptime > waittime - backend_fudge) |
|
|
2439 | sleeptime = waittime - backend_fudge; |
|
|
2440 | |
|
|
2441 | if (expect_true (sleeptime > 0.)) |
|
|
2442 | { |
|
|
2443 | ev_sleep (sleeptime); |
|
|
2444 | waittime -= sleeptime; |
|
|
2445 | } |
|
|
2446 | } |
1402 | } |
2447 | } |
1403 | |
2448 | |
|
|
2449 | #if EV_FEATURE_API |
|
|
2450 | ++loop_count; |
|
|
2451 | #endif |
|
|
2452 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1404 | backend_poll (EV_A_ block); |
2453 | backend_poll (EV_A_ waittime); |
|
|
2454 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
2455 | |
|
|
2456 | /* update ev_rt_now, do magic */ |
|
|
2457 | time_update (EV_A_ waittime + sleeptime); |
1405 | } |
2458 | } |
1406 | |
|
|
1407 | /* update ev_rt_now, do magic */ |
|
|
1408 | time_update (EV_A); |
|
|
1409 | |
2459 | |
1410 | /* queue pending timers and reschedule them */ |
2460 | /* queue pending timers and reschedule them */ |
1411 | timers_reify (EV_A); /* relative timers called last */ |
2461 | timers_reify (EV_A); /* relative timers called last */ |
1412 | #if EV_PERIODIC_ENABLE |
2462 | #if EV_PERIODIC_ENABLE |
1413 | periodics_reify (EV_A); /* absolute timers called first */ |
2463 | periodics_reify (EV_A); /* absolute timers called first */ |
1414 | #endif |
2464 | #endif |
1415 | |
2465 | |
|
|
2466 | #if EV_IDLE_ENABLE |
1416 | /* queue idle watchers unless other events are pending */ |
2467 | /* queue idle watchers unless other events are pending */ |
1417 | if (idlecnt && !any_pending (EV_A)) |
2468 | idle_reify (EV_A); |
1418 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
2469 | #endif |
1419 | |
2470 | |
|
|
2471 | #if EV_CHECK_ENABLE |
1420 | /* queue check watchers, to be executed first */ |
2472 | /* queue check watchers, to be executed first */ |
1421 | if (expect_false (checkcnt)) |
2473 | if (expect_false (checkcnt)) |
1422 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2474 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2475 | #endif |
1423 | |
2476 | |
1424 | call_pending (EV_A); |
2477 | EV_INVOKE_PENDING; |
1425 | |
|
|
1426 | if (expect_false (loop_done)) |
|
|
1427 | break; |
|
|
1428 | } |
2478 | } |
|
|
2479 | while (expect_true ( |
|
|
2480 | activecnt |
|
|
2481 | && !loop_done |
|
|
2482 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
|
|
2483 | )); |
1429 | |
2484 | |
1430 | if (loop_done == EVUNLOOP_ONE) |
2485 | if (loop_done == EVBREAK_ONE) |
1431 | loop_done = EVUNLOOP_CANCEL; |
2486 | loop_done = EVBREAK_CANCEL; |
1432 | } |
|
|
1433 | |
2487 | |
|
|
2488 | #if EV_FEATURE_API |
|
|
2489 | --loop_depth; |
|
|
2490 | #endif |
|
|
2491 | } |
|
|
2492 | |
1434 | void |
2493 | void |
1435 | ev_unloop (EV_P_ int how) |
2494 | ev_break (EV_P_ int how) |
1436 | { |
2495 | { |
1437 | loop_done = how; |
2496 | loop_done = how; |
1438 | } |
2497 | } |
1439 | |
2498 | |
|
|
2499 | void |
|
|
2500 | ev_ref (EV_P) |
|
|
2501 | { |
|
|
2502 | ++activecnt; |
|
|
2503 | } |
|
|
2504 | |
|
|
2505 | void |
|
|
2506 | ev_unref (EV_P) |
|
|
2507 | { |
|
|
2508 | --activecnt; |
|
|
2509 | } |
|
|
2510 | |
|
|
2511 | void |
|
|
2512 | ev_now_update (EV_P) |
|
|
2513 | { |
|
|
2514 | time_update (EV_A_ 1e100); |
|
|
2515 | } |
|
|
2516 | |
|
|
2517 | void |
|
|
2518 | ev_suspend (EV_P) |
|
|
2519 | { |
|
|
2520 | ev_now_update (EV_A); |
|
|
2521 | } |
|
|
2522 | |
|
|
2523 | void |
|
|
2524 | ev_resume (EV_P) |
|
|
2525 | { |
|
|
2526 | ev_tstamp mn_prev = mn_now; |
|
|
2527 | |
|
|
2528 | ev_now_update (EV_A); |
|
|
2529 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2530 | #if EV_PERIODIC_ENABLE |
|
|
2531 | /* TODO: really do this? */ |
|
|
2532 | periodics_reschedule (EV_A); |
|
|
2533 | #endif |
|
|
2534 | } |
|
|
2535 | |
1440 | /*****************************************************************************/ |
2536 | /*****************************************************************************/ |
|
|
2537 | /* singly-linked list management, used when the expected list length is short */ |
1441 | |
2538 | |
1442 | void inline_size |
2539 | inline_size void |
1443 | wlist_add (WL *head, WL elem) |
2540 | wlist_add (WL *head, WL elem) |
1444 | { |
2541 | { |
1445 | elem->next = *head; |
2542 | elem->next = *head; |
1446 | *head = elem; |
2543 | *head = elem; |
1447 | } |
2544 | } |
1448 | |
2545 | |
1449 | void inline_size |
2546 | inline_size void |
1450 | wlist_del (WL *head, WL elem) |
2547 | wlist_del (WL *head, WL elem) |
1451 | { |
2548 | { |
1452 | while (*head) |
2549 | while (*head) |
1453 | { |
2550 | { |
1454 | if (*head == elem) |
2551 | if (expect_true (*head == elem)) |
1455 | { |
2552 | { |
1456 | *head = elem->next; |
2553 | *head = elem->next; |
1457 | return; |
2554 | break; |
1458 | } |
2555 | } |
1459 | |
2556 | |
1460 | head = &(*head)->next; |
2557 | head = &(*head)->next; |
1461 | } |
2558 | } |
1462 | } |
2559 | } |
1463 | |
2560 | |
1464 | void inline_speed |
2561 | /* internal, faster, version of ev_clear_pending */ |
|
|
2562 | inline_speed void |
1465 | ev_clear_pending (EV_P_ W w) |
2563 | clear_pending (EV_P_ W w) |
1466 | { |
2564 | { |
1467 | if (w->pending) |
2565 | if (w->pending) |
1468 | { |
2566 | { |
1469 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2567 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1470 | w->pending = 0; |
2568 | w->pending = 0; |
1471 | } |
2569 | } |
1472 | } |
2570 | } |
1473 | |
2571 | |
1474 | void inline_speed |
2572 | int |
|
|
2573 | ev_clear_pending (EV_P_ void *w) |
|
|
2574 | { |
|
|
2575 | W w_ = (W)w; |
|
|
2576 | int pending = w_->pending; |
|
|
2577 | |
|
|
2578 | if (expect_true (pending)) |
|
|
2579 | { |
|
|
2580 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2581 | p->w = (W)&pending_w; |
|
|
2582 | w_->pending = 0; |
|
|
2583 | return p->events; |
|
|
2584 | } |
|
|
2585 | else |
|
|
2586 | return 0; |
|
|
2587 | } |
|
|
2588 | |
|
|
2589 | inline_size void |
|
|
2590 | pri_adjust (EV_P_ W w) |
|
|
2591 | { |
|
|
2592 | int pri = ev_priority (w); |
|
|
2593 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
2594 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
2595 | ev_set_priority (w, pri); |
|
|
2596 | } |
|
|
2597 | |
|
|
2598 | inline_speed void |
1475 | ev_start (EV_P_ W w, int active) |
2599 | ev_start (EV_P_ W w, int active) |
1476 | { |
2600 | { |
1477 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
2601 | pri_adjust (EV_A_ w); |
1478 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1479 | |
|
|
1480 | w->active = active; |
2602 | w->active = active; |
1481 | ev_ref (EV_A); |
2603 | ev_ref (EV_A); |
1482 | } |
2604 | } |
1483 | |
2605 | |
1484 | void inline_size |
2606 | inline_size void |
1485 | ev_stop (EV_P_ W w) |
2607 | ev_stop (EV_P_ W w) |
1486 | { |
2608 | { |
1487 | ev_unref (EV_A); |
2609 | ev_unref (EV_A); |
1488 | w->active = 0; |
2610 | w->active = 0; |
1489 | } |
2611 | } |
1490 | |
2612 | |
1491 | /*****************************************************************************/ |
2613 | /*****************************************************************************/ |
1492 | |
2614 | |
1493 | void |
2615 | void noinline |
1494 | ev_io_start (EV_P_ ev_io *w) |
2616 | ev_io_start (EV_P_ ev_io *w) |
1495 | { |
2617 | { |
1496 | int fd = w->fd; |
2618 | int fd = w->fd; |
1497 | |
2619 | |
1498 | if (expect_false (ev_is_active (w))) |
2620 | if (expect_false (ev_is_active (w))) |
1499 | return; |
2621 | return; |
1500 | |
2622 | |
1501 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2623 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2624 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2625 | |
|
|
2626 | EV_FREQUENT_CHECK; |
1502 | |
2627 | |
1503 | ev_start (EV_A_ (W)w, 1); |
2628 | ev_start (EV_A_ (W)w, 1); |
1504 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2629 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1505 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2630 | wlist_add (&anfds[fd].head, (WL)w); |
1506 | |
2631 | |
1507 | fd_change (EV_A_ fd); |
2632 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1508 | } |
2633 | w->events &= ~EV__IOFDSET; |
1509 | |
2634 | |
1510 | void |
2635 | EV_FREQUENT_CHECK; |
|
|
2636 | } |
|
|
2637 | |
|
|
2638 | void noinline |
1511 | ev_io_stop (EV_P_ ev_io *w) |
2639 | ev_io_stop (EV_P_ ev_io *w) |
1512 | { |
2640 | { |
1513 | ev_clear_pending (EV_A_ (W)w); |
2641 | clear_pending (EV_A_ (W)w); |
1514 | if (expect_false (!ev_is_active (w))) |
2642 | if (expect_false (!ev_is_active (w))) |
1515 | return; |
2643 | return; |
1516 | |
2644 | |
1517 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2645 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1518 | |
2646 | |
|
|
2647 | EV_FREQUENT_CHECK; |
|
|
2648 | |
1519 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2649 | wlist_del (&anfds[w->fd].head, (WL)w); |
1520 | ev_stop (EV_A_ (W)w); |
2650 | ev_stop (EV_A_ (W)w); |
1521 | |
2651 | |
1522 | fd_change (EV_A_ w->fd); |
2652 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
1523 | } |
|
|
1524 | |
2653 | |
1525 | void |
2654 | EV_FREQUENT_CHECK; |
|
|
2655 | } |
|
|
2656 | |
|
|
2657 | void noinline |
1526 | ev_timer_start (EV_P_ ev_timer *w) |
2658 | ev_timer_start (EV_P_ ev_timer *w) |
1527 | { |
2659 | { |
1528 | if (expect_false (ev_is_active (w))) |
2660 | if (expect_false (ev_is_active (w))) |
1529 | return; |
2661 | return; |
1530 | |
2662 | |
1531 | ((WT)w)->at += mn_now; |
2663 | ev_at (w) += mn_now; |
1532 | |
2664 | |
1533 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2665 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1534 | |
2666 | |
|
|
2667 | EV_FREQUENT_CHECK; |
|
|
2668 | |
|
|
2669 | ++timercnt; |
1535 | ev_start (EV_A_ (W)w, ++timercnt); |
2670 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1536 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2671 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1537 | timers [timercnt - 1] = w; |
2672 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1538 | upheap ((WT *)timers, timercnt - 1); |
2673 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2674 | upheap (timers, ev_active (w)); |
1539 | |
2675 | |
|
|
2676 | EV_FREQUENT_CHECK; |
|
|
2677 | |
1540 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2678 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1541 | } |
2679 | } |
1542 | |
2680 | |
1543 | void |
2681 | void noinline |
1544 | ev_timer_stop (EV_P_ ev_timer *w) |
2682 | ev_timer_stop (EV_P_ ev_timer *w) |
1545 | { |
2683 | { |
1546 | ev_clear_pending (EV_A_ (W)w); |
2684 | clear_pending (EV_A_ (W)w); |
1547 | if (expect_false (!ev_is_active (w))) |
2685 | if (expect_false (!ev_is_active (w))) |
1548 | return; |
2686 | return; |
1549 | |
2687 | |
1550 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2688 | EV_FREQUENT_CHECK; |
1551 | |
2689 | |
1552 | { |
2690 | { |
1553 | int active = ((W)w)->active; |
2691 | int active = ev_active (w); |
1554 | |
2692 | |
|
|
2693 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2694 | |
|
|
2695 | --timercnt; |
|
|
2696 | |
1555 | if (expect_true (--active < --timercnt)) |
2697 | if (expect_true (active < timercnt + HEAP0)) |
1556 | { |
2698 | { |
1557 | timers [active] = timers [timercnt]; |
2699 | timers [active] = timers [timercnt + HEAP0]; |
1558 | adjustheap ((WT *)timers, timercnt, active); |
2700 | adjustheap (timers, timercnt, active); |
1559 | } |
2701 | } |
1560 | } |
2702 | } |
1561 | |
2703 | |
1562 | ((WT)w)->at -= mn_now; |
2704 | ev_at (w) -= mn_now; |
1563 | |
2705 | |
1564 | ev_stop (EV_A_ (W)w); |
2706 | ev_stop (EV_A_ (W)w); |
1565 | } |
|
|
1566 | |
2707 | |
1567 | void |
2708 | EV_FREQUENT_CHECK; |
|
|
2709 | } |
|
|
2710 | |
|
|
2711 | void noinline |
1568 | ev_timer_again (EV_P_ ev_timer *w) |
2712 | ev_timer_again (EV_P_ ev_timer *w) |
1569 | { |
2713 | { |
|
|
2714 | EV_FREQUENT_CHECK; |
|
|
2715 | |
1570 | if (ev_is_active (w)) |
2716 | if (ev_is_active (w)) |
1571 | { |
2717 | { |
1572 | if (w->repeat) |
2718 | if (w->repeat) |
1573 | { |
2719 | { |
1574 | ((WT)w)->at = mn_now + w->repeat; |
2720 | ev_at (w) = mn_now + w->repeat; |
|
|
2721 | ANHE_at_cache (timers [ev_active (w)]); |
1575 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2722 | adjustheap (timers, timercnt, ev_active (w)); |
1576 | } |
2723 | } |
1577 | else |
2724 | else |
1578 | ev_timer_stop (EV_A_ w); |
2725 | ev_timer_stop (EV_A_ w); |
1579 | } |
2726 | } |
1580 | else if (w->repeat) |
2727 | else if (w->repeat) |
1581 | { |
2728 | { |
1582 | w->at = w->repeat; |
2729 | ev_at (w) = w->repeat; |
1583 | ev_timer_start (EV_A_ w); |
2730 | ev_timer_start (EV_A_ w); |
1584 | } |
2731 | } |
|
|
2732 | |
|
|
2733 | EV_FREQUENT_CHECK; |
|
|
2734 | } |
|
|
2735 | |
|
|
2736 | ev_tstamp |
|
|
2737 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2738 | { |
|
|
2739 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1585 | } |
2740 | } |
1586 | |
2741 | |
1587 | #if EV_PERIODIC_ENABLE |
2742 | #if EV_PERIODIC_ENABLE |
1588 | void |
2743 | void noinline |
1589 | ev_periodic_start (EV_P_ ev_periodic *w) |
2744 | ev_periodic_start (EV_P_ ev_periodic *w) |
1590 | { |
2745 | { |
1591 | if (expect_false (ev_is_active (w))) |
2746 | if (expect_false (ev_is_active (w))) |
1592 | return; |
2747 | return; |
1593 | |
2748 | |
1594 | if (w->reschedule_cb) |
2749 | if (w->reschedule_cb) |
1595 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2750 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1596 | else if (w->interval) |
2751 | else if (w->interval) |
1597 | { |
2752 | { |
1598 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2753 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1599 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2754 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1600 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2755 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1601 | } |
2756 | } |
|
|
2757 | else |
|
|
2758 | ev_at (w) = w->offset; |
1602 | |
2759 | |
|
|
2760 | EV_FREQUENT_CHECK; |
|
|
2761 | |
|
|
2762 | ++periodiccnt; |
1603 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2763 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1604 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2764 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1605 | periodics [periodiccnt - 1] = w; |
2765 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1606 | upheap ((WT *)periodics, periodiccnt - 1); |
2766 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2767 | upheap (periodics, ev_active (w)); |
1607 | |
2768 | |
|
|
2769 | EV_FREQUENT_CHECK; |
|
|
2770 | |
1608 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2771 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1609 | } |
2772 | } |
1610 | |
2773 | |
1611 | void |
2774 | void noinline |
1612 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2775 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1613 | { |
2776 | { |
1614 | ev_clear_pending (EV_A_ (W)w); |
2777 | clear_pending (EV_A_ (W)w); |
1615 | if (expect_false (!ev_is_active (w))) |
2778 | if (expect_false (!ev_is_active (w))) |
1616 | return; |
2779 | return; |
1617 | |
2780 | |
1618 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2781 | EV_FREQUENT_CHECK; |
1619 | |
2782 | |
1620 | { |
2783 | { |
1621 | int active = ((W)w)->active; |
2784 | int active = ev_active (w); |
1622 | |
2785 | |
|
|
2786 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2787 | |
|
|
2788 | --periodiccnt; |
|
|
2789 | |
1623 | if (expect_true (--active < --periodiccnt)) |
2790 | if (expect_true (active < periodiccnt + HEAP0)) |
1624 | { |
2791 | { |
1625 | periodics [active] = periodics [periodiccnt]; |
2792 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1626 | adjustheap ((WT *)periodics, periodiccnt, active); |
2793 | adjustheap (periodics, periodiccnt, active); |
1627 | } |
2794 | } |
1628 | } |
2795 | } |
1629 | |
2796 | |
1630 | ev_stop (EV_A_ (W)w); |
2797 | ev_stop (EV_A_ (W)w); |
1631 | } |
|
|
1632 | |
2798 | |
1633 | void |
2799 | EV_FREQUENT_CHECK; |
|
|
2800 | } |
|
|
2801 | |
|
|
2802 | void noinline |
1634 | ev_periodic_again (EV_P_ ev_periodic *w) |
2803 | ev_periodic_again (EV_P_ ev_periodic *w) |
1635 | { |
2804 | { |
1636 | /* TODO: use adjustheap and recalculation */ |
2805 | /* TODO: use adjustheap and recalculation */ |
1637 | ev_periodic_stop (EV_A_ w); |
2806 | ev_periodic_stop (EV_A_ w); |
1638 | ev_periodic_start (EV_A_ w); |
2807 | ev_periodic_start (EV_A_ w); |
… | |
… | |
1641 | |
2810 | |
1642 | #ifndef SA_RESTART |
2811 | #ifndef SA_RESTART |
1643 | # define SA_RESTART 0 |
2812 | # define SA_RESTART 0 |
1644 | #endif |
2813 | #endif |
1645 | |
2814 | |
1646 | void |
2815 | #if EV_SIGNAL_ENABLE |
|
|
2816 | |
|
|
2817 | void noinline |
1647 | ev_signal_start (EV_P_ ev_signal *w) |
2818 | ev_signal_start (EV_P_ ev_signal *w) |
1648 | { |
2819 | { |
1649 | #if EV_MULTIPLICITY |
|
|
1650 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1651 | #endif |
|
|
1652 | if (expect_false (ev_is_active (w))) |
2820 | if (expect_false (ev_is_active (w))) |
1653 | return; |
2821 | return; |
1654 | |
2822 | |
1655 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2823 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
|
|
2824 | |
|
|
2825 | #if EV_MULTIPLICITY |
|
|
2826 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2827 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
2828 | |
|
|
2829 | signals [w->signum - 1].loop = EV_A; |
|
|
2830 | #endif |
|
|
2831 | |
|
|
2832 | EV_FREQUENT_CHECK; |
|
|
2833 | |
|
|
2834 | #if EV_USE_SIGNALFD |
|
|
2835 | if (sigfd == -2) |
|
|
2836 | { |
|
|
2837 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
|
|
2838 | if (sigfd < 0 && errno == EINVAL) |
|
|
2839 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
|
|
2840 | |
|
|
2841 | if (sigfd >= 0) |
|
|
2842 | { |
|
|
2843 | fd_intern (sigfd); /* doing it twice will not hurt */ |
|
|
2844 | |
|
|
2845 | sigemptyset (&sigfd_set); |
|
|
2846 | |
|
|
2847 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2848 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2849 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2850 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2851 | } |
|
|
2852 | } |
|
|
2853 | |
|
|
2854 | if (sigfd >= 0) |
|
|
2855 | { |
|
|
2856 | /* TODO: check .head */ |
|
|
2857 | sigaddset (&sigfd_set, w->signum); |
|
|
2858 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2859 | |
|
|
2860 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2861 | } |
|
|
2862 | #endif |
1656 | |
2863 | |
1657 | ev_start (EV_A_ (W)w, 1); |
2864 | ev_start (EV_A_ (W)w, 1); |
1658 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1659 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2865 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1660 | |
2866 | |
1661 | if (!((WL)w)->next) |
2867 | if (!((WL)w)->next) |
|
|
2868 | # if EV_USE_SIGNALFD |
|
|
2869 | if (sigfd < 0) /*TODO*/ |
|
|
2870 | # endif |
1662 | { |
2871 | { |
1663 | #if _WIN32 |
2872 | # ifdef _WIN32 |
|
|
2873 | evpipe_init (EV_A); |
|
|
2874 | |
1664 | signal (w->signum, sighandler); |
2875 | signal (w->signum, ev_sighandler); |
1665 | #else |
2876 | # else |
1666 | struct sigaction sa; |
2877 | struct sigaction sa; |
|
|
2878 | |
|
|
2879 | evpipe_init (EV_A); |
|
|
2880 | |
1667 | sa.sa_handler = sighandler; |
2881 | sa.sa_handler = ev_sighandler; |
1668 | sigfillset (&sa.sa_mask); |
2882 | sigfillset (&sa.sa_mask); |
1669 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2883 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1670 | sigaction (w->signum, &sa, 0); |
2884 | sigaction (w->signum, &sa, 0); |
|
|
2885 | |
|
|
2886 | sigemptyset (&sa.sa_mask); |
|
|
2887 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2888 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
1671 | #endif |
2889 | #endif |
1672 | } |
2890 | } |
1673 | } |
|
|
1674 | |
2891 | |
1675 | void |
2892 | EV_FREQUENT_CHECK; |
|
|
2893 | } |
|
|
2894 | |
|
|
2895 | void noinline |
1676 | ev_signal_stop (EV_P_ ev_signal *w) |
2896 | ev_signal_stop (EV_P_ ev_signal *w) |
1677 | { |
2897 | { |
1678 | ev_clear_pending (EV_A_ (W)w); |
2898 | clear_pending (EV_A_ (W)w); |
1679 | if (expect_false (!ev_is_active (w))) |
2899 | if (expect_false (!ev_is_active (w))) |
1680 | return; |
2900 | return; |
1681 | |
2901 | |
|
|
2902 | EV_FREQUENT_CHECK; |
|
|
2903 | |
1682 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2904 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1683 | ev_stop (EV_A_ (W)w); |
2905 | ev_stop (EV_A_ (W)w); |
1684 | |
2906 | |
1685 | if (!signals [w->signum - 1].head) |
2907 | if (!signals [w->signum - 1].head) |
|
|
2908 | { |
|
|
2909 | #if EV_MULTIPLICITY |
|
|
2910 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2911 | #endif |
|
|
2912 | #if EV_USE_SIGNALFD |
|
|
2913 | if (sigfd >= 0) |
|
|
2914 | { |
|
|
2915 | sigset_t ss; |
|
|
2916 | |
|
|
2917 | sigemptyset (&ss); |
|
|
2918 | sigaddset (&ss, w->signum); |
|
|
2919 | sigdelset (&sigfd_set, w->signum); |
|
|
2920 | |
|
|
2921 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2922 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2923 | } |
|
|
2924 | else |
|
|
2925 | #endif |
1686 | signal (w->signum, SIG_DFL); |
2926 | signal (w->signum, SIG_DFL); |
|
|
2927 | } |
|
|
2928 | |
|
|
2929 | EV_FREQUENT_CHECK; |
1687 | } |
2930 | } |
|
|
2931 | |
|
|
2932 | #endif |
|
|
2933 | |
|
|
2934 | #if EV_CHILD_ENABLE |
1688 | |
2935 | |
1689 | void |
2936 | void |
1690 | ev_child_start (EV_P_ ev_child *w) |
2937 | ev_child_start (EV_P_ ev_child *w) |
1691 | { |
2938 | { |
1692 | #if EV_MULTIPLICITY |
2939 | #if EV_MULTIPLICITY |
1693 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2940 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1694 | #endif |
2941 | #endif |
1695 | if (expect_false (ev_is_active (w))) |
2942 | if (expect_false (ev_is_active (w))) |
1696 | return; |
2943 | return; |
1697 | |
2944 | |
|
|
2945 | EV_FREQUENT_CHECK; |
|
|
2946 | |
1698 | ev_start (EV_A_ (W)w, 1); |
2947 | ev_start (EV_A_ (W)w, 1); |
1699 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2948 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
2949 | |
|
|
2950 | EV_FREQUENT_CHECK; |
1700 | } |
2951 | } |
1701 | |
2952 | |
1702 | void |
2953 | void |
1703 | ev_child_stop (EV_P_ ev_child *w) |
2954 | ev_child_stop (EV_P_ ev_child *w) |
1704 | { |
2955 | { |
1705 | ev_clear_pending (EV_A_ (W)w); |
2956 | clear_pending (EV_A_ (W)w); |
1706 | if (expect_false (!ev_is_active (w))) |
2957 | if (expect_false (!ev_is_active (w))) |
1707 | return; |
2958 | return; |
1708 | |
2959 | |
|
|
2960 | EV_FREQUENT_CHECK; |
|
|
2961 | |
1709 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2962 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
1710 | ev_stop (EV_A_ (W)w); |
2963 | ev_stop (EV_A_ (W)w); |
|
|
2964 | |
|
|
2965 | EV_FREQUENT_CHECK; |
1711 | } |
2966 | } |
|
|
2967 | |
|
|
2968 | #endif |
1712 | |
2969 | |
1713 | #if EV_STAT_ENABLE |
2970 | #if EV_STAT_ENABLE |
1714 | |
2971 | |
1715 | # ifdef _WIN32 |
2972 | # ifdef _WIN32 |
1716 | # undef lstat |
2973 | # undef lstat |
1717 | # define lstat(a,b) _stati64 (a,b) |
2974 | # define lstat(a,b) _stati64 (a,b) |
1718 | # endif |
2975 | # endif |
1719 | |
2976 | |
1720 | #define DEF_STAT_INTERVAL 5.0074891 |
2977 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2978 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1721 | #define MIN_STAT_INTERVAL 0.1074891 |
2979 | #define MIN_STAT_INTERVAL 0.1074891 |
1722 | |
2980 | |
1723 | void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2981 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1724 | |
2982 | |
1725 | #if EV_USE_INOTIFY |
2983 | #if EV_USE_INOTIFY |
1726 | # define EV_INOTIFY_BUFSIZE 8192 |
2984 | |
|
|
2985 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2986 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
1727 | |
2987 | |
1728 | static void noinline |
2988 | static void noinline |
1729 | infy_add (EV_P_ ev_stat *w) |
2989 | infy_add (EV_P_ ev_stat *w) |
1730 | { |
2990 | { |
1731 | 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); |
2991 | 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); |
1732 | |
2992 | |
1733 | if (w->wd < 0) |
2993 | if (w->wd >= 0) |
|
|
2994 | { |
|
|
2995 | struct statfs sfs; |
|
|
2996 | |
|
|
2997 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2998 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2999 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3000 | |
|
|
3001 | if (!fs_2625) |
|
|
3002 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3003 | else if (!statfs (w->path, &sfs) |
|
|
3004 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3005 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3006 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3007 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3008 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3009 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3010 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3011 | else |
|
|
3012 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
1734 | { |
3013 | } |
1735 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
3014 | else |
|
|
3015 | { |
|
|
3016 | /* can't use inotify, continue to stat */ |
|
|
3017 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1736 | |
3018 | |
1737 | /* monitor some parent directory for speedup hints */ |
3019 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
3020 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
3021 | /* but an efficiency issue only */ |
1738 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3022 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1739 | { |
3023 | { |
1740 | char path [4096]; |
3024 | char path [4096]; |
1741 | strcpy (path, w->path); |
3025 | strcpy (path, w->path); |
1742 | |
3026 | |
… | |
… | |
1745 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3029 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1746 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3030 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1747 | |
3031 | |
1748 | char *pend = strrchr (path, '/'); |
3032 | char *pend = strrchr (path, '/'); |
1749 | |
3033 | |
1750 | if (!pend) |
3034 | if (!pend || pend == path) |
1751 | break; /* whoops, no '/', complain to your admin */ |
3035 | break; |
1752 | |
3036 | |
1753 | *pend = 0; |
3037 | *pend = 0; |
1754 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3038 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1755 | } |
3039 | } |
1756 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3040 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1757 | } |
3041 | } |
1758 | } |
3042 | } |
1759 | else |
|
|
1760 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1761 | |
3043 | |
1762 | if (w->wd >= 0) |
3044 | if (w->wd >= 0) |
1763 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3045 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3046 | |
|
|
3047 | /* now re-arm timer, if required */ |
|
|
3048 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3049 | ev_timer_again (EV_A_ &w->timer); |
|
|
3050 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
1764 | } |
3051 | } |
1765 | |
3052 | |
1766 | static void noinline |
3053 | static void noinline |
1767 | infy_del (EV_P_ ev_stat *w) |
3054 | infy_del (EV_P_ ev_stat *w) |
1768 | { |
3055 | { |
… | |
… | |
1771 | |
3058 | |
1772 | if (wd < 0) |
3059 | if (wd < 0) |
1773 | return; |
3060 | return; |
1774 | |
3061 | |
1775 | w->wd = -2; |
3062 | w->wd = -2; |
1776 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3063 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
1777 | wlist_del (&fs_hash [slot].head, (WL)w); |
3064 | wlist_del (&fs_hash [slot].head, (WL)w); |
1778 | |
3065 | |
1779 | /* remove this watcher, if others are watching it, they will rearm */ |
3066 | /* remove this watcher, if others are watching it, they will rearm */ |
1780 | inotify_rm_watch (fs_fd, wd); |
3067 | inotify_rm_watch (fs_fd, wd); |
1781 | } |
3068 | } |
1782 | |
3069 | |
1783 | static void noinline |
3070 | static void noinline |
1784 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3071 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1785 | { |
3072 | { |
1786 | if (slot < 0) |
3073 | if (slot < 0) |
1787 | /* overflow, need to check for all hahs slots */ |
3074 | /* overflow, need to check for all hash slots */ |
1788 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3075 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
1789 | infy_wd (EV_A_ slot, wd, ev); |
3076 | infy_wd (EV_A_ slot, wd, ev); |
1790 | else |
3077 | else |
1791 | { |
3078 | { |
1792 | WL w_; |
3079 | WL w_; |
1793 | |
3080 | |
1794 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3081 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
1795 | { |
3082 | { |
1796 | ev_stat *w = (ev_stat *)w_; |
3083 | ev_stat *w = (ev_stat *)w_; |
1797 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3084 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
1798 | |
3085 | |
1799 | if (w->wd == wd || wd == -1) |
3086 | if (w->wd == wd || wd == -1) |
1800 | { |
3087 | { |
1801 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3088 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
1802 | { |
3089 | { |
|
|
3090 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
1803 | w->wd = -1; |
3091 | w->wd = -1; |
1804 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3092 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1805 | } |
3093 | } |
1806 | |
3094 | |
1807 | stat_timer_cb (EV_A_ &w->timer, 0); |
3095 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
1812 | |
3100 | |
1813 | static void |
3101 | static void |
1814 | infy_cb (EV_P_ ev_io *w, int revents) |
3102 | infy_cb (EV_P_ ev_io *w, int revents) |
1815 | { |
3103 | { |
1816 | char buf [EV_INOTIFY_BUFSIZE]; |
3104 | char buf [EV_INOTIFY_BUFSIZE]; |
1817 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1818 | int ofs; |
3105 | int ofs; |
1819 | int len = read (fs_fd, buf, sizeof (buf)); |
3106 | int len = read (fs_fd, buf, sizeof (buf)); |
1820 | |
3107 | |
1821 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3108 | for (ofs = 0; ofs < len; ) |
|
|
3109 | { |
|
|
3110 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
1822 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3111 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3112 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3113 | } |
1823 | } |
3114 | } |
1824 | |
3115 | |
1825 | void inline_size |
3116 | inline_size void |
|
|
3117 | ev_check_2625 (EV_P) |
|
|
3118 | { |
|
|
3119 | /* kernels < 2.6.25 are borked |
|
|
3120 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3121 | */ |
|
|
3122 | if (ev_linux_version () < 0x020619) |
|
|
3123 | return; |
|
|
3124 | |
|
|
3125 | fs_2625 = 1; |
|
|
3126 | } |
|
|
3127 | |
|
|
3128 | inline_size int |
|
|
3129 | infy_newfd (void) |
|
|
3130 | { |
|
|
3131 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3132 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3133 | if (fd >= 0) |
|
|
3134 | return fd; |
|
|
3135 | #endif |
|
|
3136 | return inotify_init (); |
|
|
3137 | } |
|
|
3138 | |
|
|
3139 | inline_size void |
1826 | infy_init (EV_P) |
3140 | infy_init (EV_P) |
1827 | { |
3141 | { |
1828 | if (fs_fd != -2) |
3142 | if (fs_fd != -2) |
1829 | return; |
3143 | return; |
1830 | |
3144 | |
|
|
3145 | fs_fd = -1; |
|
|
3146 | |
|
|
3147 | ev_check_2625 (EV_A); |
|
|
3148 | |
1831 | fs_fd = inotify_init (); |
3149 | fs_fd = infy_newfd (); |
1832 | |
3150 | |
1833 | if (fs_fd >= 0) |
3151 | if (fs_fd >= 0) |
1834 | { |
3152 | { |
|
|
3153 | fd_intern (fs_fd); |
1835 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3154 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
1836 | ev_set_priority (&fs_w, EV_MAXPRI); |
3155 | ev_set_priority (&fs_w, EV_MAXPRI); |
1837 | ev_io_start (EV_A_ &fs_w); |
3156 | ev_io_start (EV_A_ &fs_w); |
|
|
3157 | ev_unref (EV_A); |
1838 | } |
3158 | } |
1839 | } |
3159 | } |
1840 | |
3160 | |
1841 | void inline_size |
3161 | inline_size void |
1842 | infy_fork (EV_P) |
3162 | infy_fork (EV_P) |
1843 | { |
3163 | { |
1844 | int slot; |
3164 | int slot; |
1845 | |
3165 | |
1846 | if (fs_fd < 0) |
3166 | if (fs_fd < 0) |
1847 | return; |
3167 | return; |
1848 | |
3168 | |
|
|
3169 | ev_ref (EV_A); |
|
|
3170 | ev_io_stop (EV_A_ &fs_w); |
1849 | close (fs_fd); |
3171 | close (fs_fd); |
1850 | fs_fd = inotify_init (); |
3172 | fs_fd = infy_newfd (); |
1851 | |
3173 | |
|
|
3174 | if (fs_fd >= 0) |
|
|
3175 | { |
|
|
3176 | fd_intern (fs_fd); |
|
|
3177 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3178 | ev_io_start (EV_A_ &fs_w); |
|
|
3179 | ev_unref (EV_A); |
|
|
3180 | } |
|
|
3181 | |
1852 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3182 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
1853 | { |
3183 | { |
1854 | WL w_ = fs_hash [slot].head; |
3184 | WL w_ = fs_hash [slot].head; |
1855 | fs_hash [slot].head = 0; |
3185 | fs_hash [slot].head = 0; |
1856 | |
3186 | |
1857 | while (w_) |
3187 | while (w_) |
… | |
… | |
1862 | w->wd = -1; |
3192 | w->wd = -1; |
1863 | |
3193 | |
1864 | if (fs_fd >= 0) |
3194 | if (fs_fd >= 0) |
1865 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3195 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1866 | else |
3196 | else |
|
|
3197 | { |
|
|
3198 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3199 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
1867 | ev_timer_start (EV_A_ &w->timer); |
3200 | ev_timer_again (EV_A_ &w->timer); |
|
|
3201 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3202 | } |
1868 | } |
3203 | } |
1869 | |
|
|
1870 | } |
3204 | } |
1871 | } |
3205 | } |
1872 | |
3206 | |
|
|
3207 | #endif |
|
|
3208 | |
|
|
3209 | #ifdef _WIN32 |
|
|
3210 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3211 | #else |
|
|
3212 | # define EV_LSTAT(p,b) lstat (p, b) |
1873 | #endif |
3213 | #endif |
1874 | |
3214 | |
1875 | void |
3215 | void |
1876 | ev_stat_stat (EV_P_ ev_stat *w) |
3216 | ev_stat_stat (EV_P_ ev_stat *w) |
1877 | { |
3217 | { |
… | |
… | |
1879 | w->attr.st_nlink = 0; |
3219 | w->attr.st_nlink = 0; |
1880 | else if (!w->attr.st_nlink) |
3220 | else if (!w->attr.st_nlink) |
1881 | w->attr.st_nlink = 1; |
3221 | w->attr.st_nlink = 1; |
1882 | } |
3222 | } |
1883 | |
3223 | |
1884 | void noinline |
3224 | static void noinline |
1885 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3225 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1886 | { |
3226 | { |
1887 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3227 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1888 | |
3228 | |
1889 | /* we copy this here each the time so that */ |
3229 | ev_statdata prev = w->attr; |
1890 | /* prev has the old value when the callback gets invoked */ |
|
|
1891 | w->prev = w->attr; |
|
|
1892 | ev_stat_stat (EV_A_ w); |
3230 | ev_stat_stat (EV_A_ w); |
1893 | |
3231 | |
1894 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
3232 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
3233 | if ( |
|
|
3234 | prev.st_dev != w->attr.st_dev |
|
|
3235 | || prev.st_ino != w->attr.st_ino |
|
|
3236 | || prev.st_mode != w->attr.st_mode |
|
|
3237 | || prev.st_nlink != w->attr.st_nlink |
|
|
3238 | || prev.st_uid != w->attr.st_uid |
|
|
3239 | || prev.st_gid != w->attr.st_gid |
|
|
3240 | || prev.st_rdev != w->attr.st_rdev |
|
|
3241 | || prev.st_size != w->attr.st_size |
|
|
3242 | || prev.st_atime != w->attr.st_atime |
|
|
3243 | || prev.st_mtime != w->attr.st_mtime |
|
|
3244 | || prev.st_ctime != w->attr.st_ctime |
1895 | { |
3245 | ) { |
|
|
3246 | /* we only update w->prev on actual differences */ |
|
|
3247 | /* in case we test more often than invoke the callback, */ |
|
|
3248 | /* to ensure that prev is always different to attr */ |
|
|
3249 | w->prev = prev; |
|
|
3250 | |
1896 | #if EV_USE_INOTIFY |
3251 | #if EV_USE_INOTIFY |
|
|
3252 | if (fs_fd >= 0) |
|
|
3253 | { |
1897 | infy_del (EV_A_ w); |
3254 | infy_del (EV_A_ w); |
1898 | infy_add (EV_A_ w); |
3255 | infy_add (EV_A_ w); |
1899 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3256 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3257 | } |
1900 | #endif |
3258 | #endif |
1901 | |
3259 | |
1902 | ev_feed_event (EV_A_ w, EV_STAT); |
3260 | ev_feed_event (EV_A_ w, EV_STAT); |
1903 | } |
3261 | } |
1904 | } |
3262 | } |
… | |
… | |
1907 | ev_stat_start (EV_P_ ev_stat *w) |
3265 | ev_stat_start (EV_P_ ev_stat *w) |
1908 | { |
3266 | { |
1909 | if (expect_false (ev_is_active (w))) |
3267 | if (expect_false (ev_is_active (w))) |
1910 | return; |
3268 | return; |
1911 | |
3269 | |
1912 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1913 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1914 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1915 | |
|
|
1916 | ev_stat_stat (EV_A_ w); |
3270 | ev_stat_stat (EV_A_ w); |
1917 | |
3271 | |
|
|
3272 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
1918 | if (w->interval < MIN_STAT_INTERVAL) |
3273 | w->interval = MIN_STAT_INTERVAL; |
1919 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
1920 | |
3274 | |
1921 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3275 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
1922 | ev_set_priority (&w->timer, ev_priority (w)); |
3276 | ev_set_priority (&w->timer, ev_priority (w)); |
1923 | |
3277 | |
1924 | #if EV_USE_INOTIFY |
3278 | #if EV_USE_INOTIFY |
1925 | infy_init (EV_A); |
3279 | infy_init (EV_A); |
1926 | |
3280 | |
1927 | if (fs_fd >= 0) |
3281 | if (fs_fd >= 0) |
1928 | infy_add (EV_A_ w); |
3282 | infy_add (EV_A_ w); |
1929 | else |
3283 | else |
1930 | #endif |
3284 | #endif |
|
|
3285 | { |
1931 | ev_timer_start (EV_A_ &w->timer); |
3286 | ev_timer_again (EV_A_ &w->timer); |
|
|
3287 | ev_unref (EV_A); |
|
|
3288 | } |
1932 | |
3289 | |
1933 | ev_start (EV_A_ (W)w, 1); |
3290 | ev_start (EV_A_ (W)w, 1); |
|
|
3291 | |
|
|
3292 | EV_FREQUENT_CHECK; |
1934 | } |
3293 | } |
1935 | |
3294 | |
1936 | void |
3295 | void |
1937 | ev_stat_stop (EV_P_ ev_stat *w) |
3296 | ev_stat_stop (EV_P_ ev_stat *w) |
1938 | { |
3297 | { |
1939 | ev_clear_pending (EV_A_ (W)w); |
3298 | clear_pending (EV_A_ (W)w); |
1940 | if (expect_false (!ev_is_active (w))) |
3299 | if (expect_false (!ev_is_active (w))) |
1941 | return; |
3300 | return; |
1942 | |
3301 | |
|
|
3302 | EV_FREQUENT_CHECK; |
|
|
3303 | |
1943 | #if EV_USE_INOTIFY |
3304 | #if EV_USE_INOTIFY |
1944 | infy_del (EV_A_ w); |
3305 | infy_del (EV_A_ w); |
1945 | #endif |
3306 | #endif |
|
|
3307 | |
|
|
3308 | if (ev_is_active (&w->timer)) |
|
|
3309 | { |
|
|
3310 | ev_ref (EV_A); |
1946 | ev_timer_stop (EV_A_ &w->timer); |
3311 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3312 | } |
1947 | |
3313 | |
1948 | ev_stop (EV_A_ (W)w); |
3314 | ev_stop (EV_A_ (W)w); |
1949 | } |
|
|
1950 | #endif |
|
|
1951 | |
3315 | |
|
|
3316 | EV_FREQUENT_CHECK; |
|
|
3317 | } |
|
|
3318 | #endif |
|
|
3319 | |
|
|
3320 | #if EV_IDLE_ENABLE |
1952 | void |
3321 | void |
1953 | ev_idle_start (EV_P_ ev_idle *w) |
3322 | ev_idle_start (EV_P_ ev_idle *w) |
1954 | { |
3323 | { |
1955 | if (expect_false (ev_is_active (w))) |
3324 | if (expect_false (ev_is_active (w))) |
1956 | return; |
3325 | return; |
1957 | |
3326 | |
|
|
3327 | pri_adjust (EV_A_ (W)w); |
|
|
3328 | |
|
|
3329 | EV_FREQUENT_CHECK; |
|
|
3330 | |
|
|
3331 | { |
|
|
3332 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
3333 | |
|
|
3334 | ++idleall; |
1958 | ev_start (EV_A_ (W)w, ++idlecnt); |
3335 | ev_start (EV_A_ (W)w, active); |
|
|
3336 | |
1959 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
3337 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
1960 | idles [idlecnt - 1] = w; |
3338 | idles [ABSPRI (w)][active - 1] = w; |
|
|
3339 | } |
|
|
3340 | |
|
|
3341 | EV_FREQUENT_CHECK; |
1961 | } |
3342 | } |
1962 | |
3343 | |
1963 | void |
3344 | void |
1964 | ev_idle_stop (EV_P_ ev_idle *w) |
3345 | ev_idle_stop (EV_P_ ev_idle *w) |
1965 | { |
3346 | { |
1966 | ev_clear_pending (EV_A_ (W)w); |
3347 | clear_pending (EV_A_ (W)w); |
1967 | if (expect_false (!ev_is_active (w))) |
3348 | if (expect_false (!ev_is_active (w))) |
1968 | return; |
3349 | return; |
1969 | |
3350 | |
|
|
3351 | EV_FREQUENT_CHECK; |
|
|
3352 | |
1970 | { |
3353 | { |
1971 | int active = ((W)w)->active; |
3354 | int active = ev_active (w); |
1972 | idles [active - 1] = idles [--idlecnt]; |
3355 | |
1973 | ((W)idles [active - 1])->active = active; |
3356 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
3357 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
3358 | |
|
|
3359 | ev_stop (EV_A_ (W)w); |
|
|
3360 | --idleall; |
1974 | } |
3361 | } |
1975 | |
3362 | |
1976 | ev_stop (EV_A_ (W)w); |
3363 | EV_FREQUENT_CHECK; |
1977 | } |
3364 | } |
|
|
3365 | #endif |
1978 | |
3366 | |
|
|
3367 | #if EV_PREPARE_ENABLE |
1979 | void |
3368 | void |
1980 | ev_prepare_start (EV_P_ ev_prepare *w) |
3369 | ev_prepare_start (EV_P_ ev_prepare *w) |
1981 | { |
3370 | { |
1982 | if (expect_false (ev_is_active (w))) |
3371 | if (expect_false (ev_is_active (w))) |
1983 | return; |
3372 | return; |
|
|
3373 | |
|
|
3374 | EV_FREQUENT_CHECK; |
1984 | |
3375 | |
1985 | ev_start (EV_A_ (W)w, ++preparecnt); |
3376 | ev_start (EV_A_ (W)w, ++preparecnt); |
1986 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3377 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1987 | prepares [preparecnt - 1] = w; |
3378 | prepares [preparecnt - 1] = w; |
|
|
3379 | |
|
|
3380 | EV_FREQUENT_CHECK; |
1988 | } |
3381 | } |
1989 | |
3382 | |
1990 | void |
3383 | void |
1991 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3384 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1992 | { |
3385 | { |
1993 | ev_clear_pending (EV_A_ (W)w); |
3386 | clear_pending (EV_A_ (W)w); |
1994 | if (expect_false (!ev_is_active (w))) |
3387 | if (expect_false (!ev_is_active (w))) |
1995 | return; |
3388 | return; |
1996 | |
3389 | |
|
|
3390 | EV_FREQUENT_CHECK; |
|
|
3391 | |
1997 | { |
3392 | { |
1998 | int active = ((W)w)->active; |
3393 | int active = ev_active (w); |
|
|
3394 | |
1999 | prepares [active - 1] = prepares [--preparecnt]; |
3395 | prepares [active - 1] = prepares [--preparecnt]; |
2000 | ((W)prepares [active - 1])->active = active; |
3396 | ev_active (prepares [active - 1]) = active; |
2001 | } |
3397 | } |
2002 | |
3398 | |
2003 | ev_stop (EV_A_ (W)w); |
3399 | ev_stop (EV_A_ (W)w); |
2004 | } |
|
|
2005 | |
3400 | |
|
|
3401 | EV_FREQUENT_CHECK; |
|
|
3402 | } |
|
|
3403 | #endif |
|
|
3404 | |
|
|
3405 | #if EV_CHECK_ENABLE |
2006 | void |
3406 | void |
2007 | ev_check_start (EV_P_ ev_check *w) |
3407 | ev_check_start (EV_P_ ev_check *w) |
2008 | { |
3408 | { |
2009 | if (expect_false (ev_is_active (w))) |
3409 | if (expect_false (ev_is_active (w))) |
2010 | return; |
3410 | return; |
|
|
3411 | |
|
|
3412 | EV_FREQUENT_CHECK; |
2011 | |
3413 | |
2012 | ev_start (EV_A_ (W)w, ++checkcnt); |
3414 | ev_start (EV_A_ (W)w, ++checkcnt); |
2013 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3415 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2014 | checks [checkcnt - 1] = w; |
3416 | checks [checkcnt - 1] = w; |
|
|
3417 | |
|
|
3418 | EV_FREQUENT_CHECK; |
2015 | } |
3419 | } |
2016 | |
3420 | |
2017 | void |
3421 | void |
2018 | ev_check_stop (EV_P_ ev_check *w) |
3422 | ev_check_stop (EV_P_ ev_check *w) |
2019 | { |
3423 | { |
2020 | ev_clear_pending (EV_A_ (W)w); |
3424 | clear_pending (EV_A_ (W)w); |
2021 | if (expect_false (!ev_is_active (w))) |
3425 | if (expect_false (!ev_is_active (w))) |
2022 | return; |
3426 | return; |
2023 | |
3427 | |
|
|
3428 | EV_FREQUENT_CHECK; |
|
|
3429 | |
2024 | { |
3430 | { |
2025 | int active = ((W)w)->active; |
3431 | int active = ev_active (w); |
|
|
3432 | |
2026 | checks [active - 1] = checks [--checkcnt]; |
3433 | checks [active - 1] = checks [--checkcnt]; |
2027 | ((W)checks [active - 1])->active = active; |
3434 | ev_active (checks [active - 1]) = active; |
2028 | } |
3435 | } |
2029 | |
3436 | |
2030 | ev_stop (EV_A_ (W)w); |
3437 | ev_stop (EV_A_ (W)w); |
|
|
3438 | |
|
|
3439 | EV_FREQUENT_CHECK; |
2031 | } |
3440 | } |
|
|
3441 | #endif |
2032 | |
3442 | |
2033 | #if EV_EMBED_ENABLE |
3443 | #if EV_EMBED_ENABLE |
2034 | void noinline |
3444 | void noinline |
2035 | ev_embed_sweep (EV_P_ ev_embed *w) |
3445 | ev_embed_sweep (EV_P_ ev_embed *w) |
2036 | { |
3446 | { |
2037 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
3447 | ev_run (w->other, EVRUN_NOWAIT); |
2038 | } |
3448 | } |
2039 | |
3449 | |
2040 | static void |
3450 | static void |
2041 | embed_cb (EV_P_ ev_io *io, int revents) |
3451 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2042 | { |
3452 | { |
2043 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3453 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2044 | |
3454 | |
2045 | if (ev_cb (w)) |
3455 | if (ev_cb (w)) |
2046 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3456 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2047 | else |
3457 | else |
2048 | ev_embed_sweep (loop, w); |
3458 | ev_run (w->other, EVRUN_NOWAIT); |
2049 | } |
3459 | } |
|
|
3460 | |
|
|
3461 | static void |
|
|
3462 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
3463 | { |
|
|
3464 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
3465 | |
|
|
3466 | { |
|
|
3467 | EV_P = w->other; |
|
|
3468 | |
|
|
3469 | while (fdchangecnt) |
|
|
3470 | { |
|
|
3471 | fd_reify (EV_A); |
|
|
3472 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3473 | } |
|
|
3474 | } |
|
|
3475 | } |
|
|
3476 | |
|
|
3477 | static void |
|
|
3478 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3479 | { |
|
|
3480 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3481 | |
|
|
3482 | ev_embed_stop (EV_A_ w); |
|
|
3483 | |
|
|
3484 | { |
|
|
3485 | EV_P = w->other; |
|
|
3486 | |
|
|
3487 | ev_loop_fork (EV_A); |
|
|
3488 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3489 | } |
|
|
3490 | |
|
|
3491 | ev_embed_start (EV_A_ w); |
|
|
3492 | } |
|
|
3493 | |
|
|
3494 | #if 0 |
|
|
3495 | static void |
|
|
3496 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
3497 | { |
|
|
3498 | ev_idle_stop (EV_A_ idle); |
|
|
3499 | } |
|
|
3500 | #endif |
2050 | |
3501 | |
2051 | void |
3502 | void |
2052 | ev_embed_start (EV_P_ ev_embed *w) |
3503 | ev_embed_start (EV_P_ ev_embed *w) |
2053 | { |
3504 | { |
2054 | if (expect_false (ev_is_active (w))) |
3505 | if (expect_false (ev_is_active (w))) |
2055 | return; |
3506 | return; |
2056 | |
3507 | |
2057 | { |
3508 | { |
2058 | struct ev_loop *loop = w->loop; |
3509 | EV_P = w->other; |
2059 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3510 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2060 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
3511 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2061 | } |
3512 | } |
|
|
3513 | |
|
|
3514 | EV_FREQUENT_CHECK; |
2062 | |
3515 | |
2063 | ev_set_priority (&w->io, ev_priority (w)); |
3516 | ev_set_priority (&w->io, ev_priority (w)); |
2064 | ev_io_start (EV_A_ &w->io); |
3517 | ev_io_start (EV_A_ &w->io); |
2065 | |
3518 | |
|
|
3519 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
3520 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
3521 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
3522 | |
|
|
3523 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3524 | ev_fork_start (EV_A_ &w->fork); |
|
|
3525 | |
|
|
3526 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
3527 | |
2066 | ev_start (EV_A_ (W)w, 1); |
3528 | ev_start (EV_A_ (W)w, 1); |
|
|
3529 | |
|
|
3530 | EV_FREQUENT_CHECK; |
2067 | } |
3531 | } |
2068 | |
3532 | |
2069 | void |
3533 | void |
2070 | ev_embed_stop (EV_P_ ev_embed *w) |
3534 | ev_embed_stop (EV_P_ ev_embed *w) |
2071 | { |
3535 | { |
2072 | ev_clear_pending (EV_A_ (W)w); |
3536 | clear_pending (EV_A_ (W)w); |
2073 | if (expect_false (!ev_is_active (w))) |
3537 | if (expect_false (!ev_is_active (w))) |
2074 | return; |
3538 | return; |
2075 | |
3539 | |
|
|
3540 | EV_FREQUENT_CHECK; |
|
|
3541 | |
2076 | ev_io_stop (EV_A_ &w->io); |
3542 | ev_io_stop (EV_A_ &w->io); |
|
|
3543 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3544 | ev_fork_stop (EV_A_ &w->fork); |
2077 | |
3545 | |
2078 | ev_stop (EV_A_ (W)w); |
3546 | ev_stop (EV_A_ (W)w); |
|
|
3547 | |
|
|
3548 | EV_FREQUENT_CHECK; |
2079 | } |
3549 | } |
2080 | #endif |
3550 | #endif |
2081 | |
3551 | |
2082 | #if EV_FORK_ENABLE |
3552 | #if EV_FORK_ENABLE |
2083 | void |
3553 | void |
2084 | ev_fork_start (EV_P_ ev_fork *w) |
3554 | ev_fork_start (EV_P_ ev_fork *w) |
2085 | { |
3555 | { |
2086 | if (expect_false (ev_is_active (w))) |
3556 | if (expect_false (ev_is_active (w))) |
2087 | return; |
3557 | return; |
|
|
3558 | |
|
|
3559 | EV_FREQUENT_CHECK; |
2088 | |
3560 | |
2089 | ev_start (EV_A_ (W)w, ++forkcnt); |
3561 | ev_start (EV_A_ (W)w, ++forkcnt); |
2090 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3562 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2091 | forks [forkcnt - 1] = w; |
3563 | forks [forkcnt - 1] = w; |
|
|
3564 | |
|
|
3565 | EV_FREQUENT_CHECK; |
2092 | } |
3566 | } |
2093 | |
3567 | |
2094 | void |
3568 | void |
2095 | ev_fork_stop (EV_P_ ev_fork *w) |
3569 | ev_fork_stop (EV_P_ ev_fork *w) |
2096 | { |
3570 | { |
2097 | ev_clear_pending (EV_A_ (W)w); |
3571 | clear_pending (EV_A_ (W)w); |
2098 | if (expect_false (!ev_is_active (w))) |
3572 | if (expect_false (!ev_is_active (w))) |
2099 | return; |
3573 | return; |
2100 | |
3574 | |
|
|
3575 | EV_FREQUENT_CHECK; |
|
|
3576 | |
2101 | { |
3577 | { |
2102 | int active = ((W)w)->active; |
3578 | int active = ev_active (w); |
|
|
3579 | |
2103 | forks [active - 1] = forks [--forkcnt]; |
3580 | forks [active - 1] = forks [--forkcnt]; |
2104 | ((W)forks [active - 1])->active = active; |
3581 | ev_active (forks [active - 1]) = active; |
2105 | } |
3582 | } |
2106 | |
3583 | |
2107 | ev_stop (EV_A_ (W)w); |
3584 | ev_stop (EV_A_ (W)w); |
|
|
3585 | |
|
|
3586 | EV_FREQUENT_CHECK; |
|
|
3587 | } |
|
|
3588 | #endif |
|
|
3589 | |
|
|
3590 | #if EV_CLEANUP_ENABLE |
|
|
3591 | void |
|
|
3592 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
3593 | { |
|
|
3594 | if (expect_false (ev_is_active (w))) |
|
|
3595 | return; |
|
|
3596 | |
|
|
3597 | EV_FREQUENT_CHECK; |
|
|
3598 | |
|
|
3599 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3600 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3601 | cleanups [cleanupcnt - 1] = w; |
|
|
3602 | |
|
|
3603 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3604 | ev_unref (EV_A); |
|
|
3605 | EV_FREQUENT_CHECK; |
|
|
3606 | } |
|
|
3607 | |
|
|
3608 | void |
|
|
3609 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3610 | { |
|
|
3611 | clear_pending (EV_A_ (W)w); |
|
|
3612 | if (expect_false (!ev_is_active (w))) |
|
|
3613 | return; |
|
|
3614 | |
|
|
3615 | EV_FREQUENT_CHECK; |
|
|
3616 | ev_ref (EV_A); |
|
|
3617 | |
|
|
3618 | { |
|
|
3619 | int active = ev_active (w); |
|
|
3620 | |
|
|
3621 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3622 | ev_active (cleanups [active - 1]) = active; |
|
|
3623 | } |
|
|
3624 | |
|
|
3625 | ev_stop (EV_A_ (W)w); |
|
|
3626 | |
|
|
3627 | EV_FREQUENT_CHECK; |
|
|
3628 | } |
|
|
3629 | #endif |
|
|
3630 | |
|
|
3631 | #if EV_ASYNC_ENABLE |
|
|
3632 | void |
|
|
3633 | ev_async_start (EV_P_ ev_async *w) |
|
|
3634 | { |
|
|
3635 | if (expect_false (ev_is_active (w))) |
|
|
3636 | return; |
|
|
3637 | |
|
|
3638 | w->sent = 0; |
|
|
3639 | |
|
|
3640 | evpipe_init (EV_A); |
|
|
3641 | |
|
|
3642 | EV_FREQUENT_CHECK; |
|
|
3643 | |
|
|
3644 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3645 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3646 | asyncs [asynccnt - 1] = w; |
|
|
3647 | |
|
|
3648 | EV_FREQUENT_CHECK; |
|
|
3649 | } |
|
|
3650 | |
|
|
3651 | void |
|
|
3652 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3653 | { |
|
|
3654 | clear_pending (EV_A_ (W)w); |
|
|
3655 | if (expect_false (!ev_is_active (w))) |
|
|
3656 | return; |
|
|
3657 | |
|
|
3658 | EV_FREQUENT_CHECK; |
|
|
3659 | |
|
|
3660 | { |
|
|
3661 | int active = ev_active (w); |
|
|
3662 | |
|
|
3663 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3664 | ev_active (asyncs [active - 1]) = active; |
|
|
3665 | } |
|
|
3666 | |
|
|
3667 | ev_stop (EV_A_ (W)w); |
|
|
3668 | |
|
|
3669 | EV_FREQUENT_CHECK; |
|
|
3670 | } |
|
|
3671 | |
|
|
3672 | void |
|
|
3673 | ev_async_send (EV_P_ ev_async *w) |
|
|
3674 | { |
|
|
3675 | w->sent = 1; |
|
|
3676 | evpipe_write (EV_A_ &async_pending); |
2108 | } |
3677 | } |
2109 | #endif |
3678 | #endif |
2110 | |
3679 | |
2111 | /*****************************************************************************/ |
3680 | /*****************************************************************************/ |
2112 | |
3681 | |
… | |
… | |
2122 | once_cb (EV_P_ struct ev_once *once, int revents) |
3691 | once_cb (EV_P_ struct ev_once *once, int revents) |
2123 | { |
3692 | { |
2124 | void (*cb)(int revents, void *arg) = once->cb; |
3693 | void (*cb)(int revents, void *arg) = once->cb; |
2125 | void *arg = once->arg; |
3694 | void *arg = once->arg; |
2126 | |
3695 | |
2127 | ev_io_stop (EV_A_ &once->io); |
3696 | ev_io_stop (EV_A_ &once->io); |
2128 | ev_timer_stop (EV_A_ &once->to); |
3697 | ev_timer_stop (EV_A_ &once->to); |
2129 | ev_free (once); |
3698 | ev_free (once); |
2130 | |
3699 | |
2131 | cb (revents, arg); |
3700 | cb (revents, arg); |
2132 | } |
3701 | } |
2133 | |
3702 | |
2134 | static void |
3703 | static void |
2135 | once_cb_io (EV_P_ ev_io *w, int revents) |
3704 | once_cb_io (EV_P_ ev_io *w, int revents) |
2136 | { |
3705 | { |
2137 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3706 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3707 | |
|
|
3708 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2138 | } |
3709 | } |
2139 | |
3710 | |
2140 | static void |
3711 | static void |
2141 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3712 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2142 | { |
3713 | { |
2143 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3714 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3715 | |
|
|
3716 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2144 | } |
3717 | } |
2145 | |
3718 | |
2146 | void |
3719 | void |
2147 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3720 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2148 | { |
3721 | { |
2149 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3722 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2150 | |
3723 | |
2151 | if (expect_false (!once)) |
3724 | if (expect_false (!once)) |
2152 | { |
3725 | { |
2153 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3726 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2154 | return; |
3727 | return; |
2155 | } |
3728 | } |
2156 | |
3729 | |
2157 | once->cb = cb; |
3730 | once->cb = cb; |
2158 | once->arg = arg; |
3731 | once->arg = arg; |
… | |
… | |
2170 | ev_timer_set (&once->to, timeout, 0.); |
3743 | ev_timer_set (&once->to, timeout, 0.); |
2171 | ev_timer_start (EV_A_ &once->to); |
3744 | ev_timer_start (EV_A_ &once->to); |
2172 | } |
3745 | } |
2173 | } |
3746 | } |
2174 | |
3747 | |
2175 | #ifdef __cplusplus |
3748 | /*****************************************************************************/ |
2176 | } |
3749 | |
|
|
3750 | #if EV_WALK_ENABLE |
|
|
3751 | void |
|
|
3752 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3753 | { |
|
|
3754 | int i, j; |
|
|
3755 | ev_watcher_list *wl, *wn; |
|
|
3756 | |
|
|
3757 | if (types & (EV_IO | EV_EMBED)) |
|
|
3758 | for (i = 0; i < anfdmax; ++i) |
|
|
3759 | for (wl = anfds [i].head; wl; ) |
|
|
3760 | { |
|
|
3761 | wn = wl->next; |
|
|
3762 | |
|
|
3763 | #if EV_EMBED_ENABLE |
|
|
3764 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3765 | { |
|
|
3766 | if (types & EV_EMBED) |
|
|
3767 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3768 | } |
|
|
3769 | else |
|
|
3770 | #endif |
|
|
3771 | #if EV_USE_INOTIFY |
|
|
3772 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3773 | ; |
|
|
3774 | else |
|
|
3775 | #endif |
|
|
3776 | if ((ev_io *)wl != &pipe_w) |
|
|
3777 | if (types & EV_IO) |
|
|
3778 | cb (EV_A_ EV_IO, wl); |
|
|
3779 | |
|
|
3780 | wl = wn; |
|
|
3781 | } |
|
|
3782 | |
|
|
3783 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3784 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3785 | #if EV_STAT_ENABLE |
|
|
3786 | /*TODO: timer is not always active*/ |
|
|
3787 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3788 | { |
|
|
3789 | if (types & EV_STAT) |
|
|
3790 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3791 | } |
|
|
3792 | else |
|
|
3793 | #endif |
|
|
3794 | if (types & EV_TIMER) |
|
|
3795 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3796 | |
|
|
3797 | #if EV_PERIODIC_ENABLE |
|
|
3798 | if (types & EV_PERIODIC) |
|
|
3799 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3800 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3801 | #endif |
|
|
3802 | |
|
|
3803 | #if EV_IDLE_ENABLE |
|
|
3804 | if (types & EV_IDLE) |
|
|
3805 | for (j = NUMPRI; i--; ) |
|
|
3806 | for (i = idlecnt [j]; i--; ) |
|
|
3807 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3808 | #endif |
|
|
3809 | |
|
|
3810 | #if EV_FORK_ENABLE |
|
|
3811 | if (types & EV_FORK) |
|
|
3812 | for (i = forkcnt; i--; ) |
|
|
3813 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3814 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3815 | #endif |
|
|
3816 | |
|
|
3817 | #if EV_ASYNC_ENABLE |
|
|
3818 | if (types & EV_ASYNC) |
|
|
3819 | for (i = asynccnt; i--; ) |
|
|
3820 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3821 | #endif |
|
|
3822 | |
|
|
3823 | #if EV_PREPARE_ENABLE |
|
|
3824 | if (types & EV_PREPARE) |
|
|
3825 | for (i = preparecnt; i--; ) |
|
|
3826 | # if EV_EMBED_ENABLE |
|
|
3827 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
2177 | #endif |
3828 | # endif |
|
|
3829 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3830 | #endif |
2178 | |
3831 | |
|
|
3832 | #if EV_CHECK_ENABLE |
|
|
3833 | if (types & EV_CHECK) |
|
|
3834 | for (i = checkcnt; i--; ) |
|
|
3835 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3836 | #endif |
|
|
3837 | |
|
|
3838 | #if EV_SIGNAL_ENABLE |
|
|
3839 | if (types & EV_SIGNAL) |
|
|
3840 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3841 | for (wl = signals [i].head; wl; ) |
|
|
3842 | { |
|
|
3843 | wn = wl->next; |
|
|
3844 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3845 | wl = wn; |
|
|
3846 | } |
|
|
3847 | #endif |
|
|
3848 | |
|
|
3849 | #if EV_CHILD_ENABLE |
|
|
3850 | if (types & EV_CHILD) |
|
|
3851 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3852 | for (wl = childs [i]; wl; ) |
|
|
3853 | { |
|
|
3854 | wn = wl->next; |
|
|
3855 | cb (EV_A_ EV_CHILD, wl); |
|
|
3856 | wl = wn; |
|
|
3857 | } |
|
|
3858 | #endif |
|
|
3859 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3860 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3861 | } |
|
|
3862 | #endif |
|
|
3863 | |
|
|
3864 | #if EV_MULTIPLICITY |
|
|
3865 | #include "ev_wrap.h" |
|
|
3866 | #endif |
|
|
3867 | |
|
|
3868 | EV_CPP(}) |
|
|
3869 | |