1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
35 | |
43 | |
36 | #ifndef EV_STANDALONE |
44 | #ifndef EV_STANDALONE |
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45 | # ifdef EV_CONFIG_H |
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46 | # include EV_CONFIG_H |
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47 | # else |
37 | # include "config.h" |
48 | # include "config.h" |
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49 | # endif |
38 | |
50 | |
39 | # if HAVE_CLOCK_GETTIME |
51 | # if HAVE_CLOCK_GETTIME |
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52 | # ifndef EV_USE_MONOTONIC |
40 | # define EV_USE_MONOTONIC 1 |
53 | # define EV_USE_MONOTONIC 1 |
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54 | # endif |
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55 | # ifndef EV_USE_REALTIME |
41 | # define EV_USE_REALTIME 1 |
56 | # define EV_USE_REALTIME 1 |
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57 | # endif |
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58 | # else |
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59 | # ifndef EV_USE_MONOTONIC |
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60 | # define EV_USE_MONOTONIC 0 |
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61 | # endif |
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62 | # ifndef EV_USE_REALTIME |
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63 | # define EV_USE_REALTIME 0 |
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64 | # endif |
42 | # endif |
65 | # endif |
43 | |
66 | |
44 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
67 | # ifndef EV_USE_NANOSLEEP |
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|
68 | # if HAVE_NANOSLEEP |
45 | # define EV_USE_SELECT 1 |
69 | # define EV_USE_NANOSLEEP 1 |
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70 | # else |
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71 | # define EV_USE_NANOSLEEP 0 |
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72 | # endif |
46 | # endif |
73 | # endif |
47 | |
74 | |
48 | # if HAVE_POLL && HAVE_POLL_H |
75 | # ifndef EV_USE_SELECT |
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|
76 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
49 | # define EV_USE_POLL 1 |
77 | # define EV_USE_SELECT 1 |
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78 | # else |
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79 | # define EV_USE_SELECT 0 |
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80 | # endif |
50 | # endif |
81 | # endif |
51 | |
82 | |
52 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
83 | # ifndef EV_USE_POLL |
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84 | # if HAVE_POLL && HAVE_POLL_H |
53 | # define EV_USE_EPOLL 1 |
85 | # define EV_USE_POLL 1 |
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86 | # else |
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87 | # define EV_USE_POLL 0 |
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88 | # endif |
54 | # endif |
89 | # endif |
55 | |
90 | |
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91 | # ifndef EV_USE_EPOLL |
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92 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
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93 | # define EV_USE_EPOLL 1 |
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94 | # else |
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95 | # define EV_USE_EPOLL 0 |
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96 | # endif |
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97 | # endif |
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98 | |
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99 | # ifndef EV_USE_KQUEUE |
56 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
100 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
57 | # define EV_USE_KQUEUE 1 |
101 | # define EV_USE_KQUEUE 1 |
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102 | # else |
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103 | # define EV_USE_KQUEUE 0 |
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104 | # endif |
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105 | # endif |
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106 | |
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107 | # ifndef EV_USE_PORT |
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108 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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109 | # define EV_USE_PORT 1 |
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110 | # else |
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111 | # define EV_USE_PORT 0 |
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112 | # endif |
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113 | # endif |
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114 | |
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115 | # ifndef EV_USE_INOTIFY |
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116 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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117 | # define EV_USE_INOTIFY 1 |
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118 | # else |
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119 | # define EV_USE_INOTIFY 0 |
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120 | # endif |
58 | # endif |
121 | # endif |
59 | |
122 | |
60 | #endif |
123 | #endif |
61 | |
124 | |
62 | #include <math.h> |
125 | #include <math.h> |
… | |
… | |
71 | #include <sys/types.h> |
134 | #include <sys/types.h> |
72 | #include <time.h> |
135 | #include <time.h> |
73 | |
136 | |
74 | #include <signal.h> |
137 | #include <signal.h> |
75 | |
138 | |
76 | #ifndef WIN32 |
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77 | # include <unistd.h> |
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78 | # include <sys/time.h> |
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79 | # include <sys/wait.h> |
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80 | #endif |
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81 | /**/ |
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82 | |
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83 | #ifndef EV_USE_MONOTONIC |
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84 | # define EV_USE_MONOTONIC 1 |
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85 | #endif |
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86 | |
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87 | #ifndef EV_USE_SELECT |
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88 | # define EV_USE_SELECT 1 |
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89 | #endif |
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90 | |
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91 | #ifndef EV_USE_POLL |
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92 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
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93 | #endif |
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94 | |
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95 | #ifndef EV_USE_EPOLL |
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96 | # define EV_USE_EPOLL 0 |
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97 | #endif |
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98 | |
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99 | #ifndef EV_USE_KQUEUE |
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100 | # define EV_USE_KQUEUE 0 |
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101 | #endif |
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102 | |
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103 | #ifndef EV_USE_WIN32 |
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104 | # ifdef WIN32 |
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105 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
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106 | # undef EV_USE_SELECT |
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107 | # define EV_USE_SELECT 1 |
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108 | # else |
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109 | # define EV_USE_WIN32 0 |
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110 | # endif |
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111 | #endif |
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112 | |
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113 | #ifndef EV_USE_REALTIME |
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114 | # define EV_USE_REALTIME 1 |
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115 | #endif |
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116 | |
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117 | /**/ |
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118 | |
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119 | #ifndef CLOCK_MONOTONIC |
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120 | # undef EV_USE_MONOTONIC |
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121 | # define EV_USE_MONOTONIC 0 |
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122 | #endif |
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123 | |
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124 | #ifndef CLOCK_REALTIME |
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125 | # undef EV_USE_REALTIME |
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126 | # define EV_USE_REALTIME 0 |
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127 | #endif |
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128 | |
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129 | /**/ |
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130 | |
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131 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
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132 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
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133 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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134 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
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135 | |
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136 | #ifdef EV_H |
139 | #ifdef EV_H |
137 | # include EV_H |
140 | # include EV_H |
138 | #else |
141 | #else |
139 | # include "ev.h" |
142 | # include "ev.h" |
140 | #endif |
143 | #endif |
141 | |
144 | |
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145 | #ifndef _WIN32 |
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146 | # include <sys/time.h> |
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147 | # include <sys/wait.h> |
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148 | # include <unistd.h> |
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149 | #else |
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150 | # define WIN32_LEAN_AND_MEAN |
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151 | # include <windows.h> |
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152 | # ifndef EV_SELECT_IS_WINSOCKET |
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153 | # define EV_SELECT_IS_WINSOCKET 1 |
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154 | # endif |
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155 | #endif |
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156 | |
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157 | /**/ |
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158 | |
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159 | #ifndef EV_USE_MONOTONIC |
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160 | # define EV_USE_MONOTONIC 0 |
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161 | #endif |
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162 | |
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163 | #ifndef EV_USE_REALTIME |
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164 | # define EV_USE_REALTIME 0 |
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165 | #endif |
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166 | |
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167 | #ifndef EV_USE_NANOSLEEP |
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168 | # define EV_USE_NANOSLEEP 0 |
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169 | #endif |
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170 | |
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171 | #ifndef EV_USE_SELECT |
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172 | # define EV_USE_SELECT 1 |
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173 | #endif |
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174 | |
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175 | #ifndef EV_USE_POLL |
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176 | # ifdef _WIN32 |
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177 | # define EV_USE_POLL 0 |
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178 | # else |
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179 | # define EV_USE_POLL 1 |
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180 | # endif |
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181 | #endif |
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182 | |
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183 | #ifndef EV_USE_EPOLL |
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184 | # define EV_USE_EPOLL 0 |
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185 | #endif |
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186 | |
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187 | #ifndef EV_USE_KQUEUE |
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188 | # define EV_USE_KQUEUE 0 |
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189 | #endif |
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190 | |
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191 | #ifndef EV_USE_PORT |
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192 | # define EV_USE_PORT 0 |
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193 | #endif |
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194 | |
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195 | #ifndef EV_USE_INOTIFY |
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196 | # define EV_USE_INOTIFY 0 |
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197 | #endif |
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198 | |
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199 | #ifndef EV_PID_HASHSIZE |
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200 | # if EV_MINIMAL |
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201 | # define EV_PID_HASHSIZE 1 |
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202 | # else |
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203 | # define EV_PID_HASHSIZE 16 |
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204 | # endif |
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205 | #endif |
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206 | |
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207 | #ifndef EV_INOTIFY_HASHSIZE |
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208 | # if EV_MINIMAL |
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209 | # define EV_INOTIFY_HASHSIZE 1 |
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210 | # else |
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211 | # define EV_INOTIFY_HASHSIZE 16 |
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212 | # endif |
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213 | #endif |
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214 | |
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215 | /**/ |
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216 | |
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217 | #ifndef CLOCK_MONOTONIC |
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218 | # undef EV_USE_MONOTONIC |
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219 | # define EV_USE_MONOTONIC 0 |
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220 | #endif |
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221 | |
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222 | #ifndef CLOCK_REALTIME |
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223 | # undef EV_USE_REALTIME |
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224 | # define EV_USE_REALTIME 0 |
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225 | #endif |
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226 | |
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227 | #if !EV_STAT_ENABLE |
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228 | # undef EV_USE_INOTIFY |
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229 | # define EV_USE_INOTIFY 0 |
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230 | #endif |
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231 | |
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232 | #if !EV_USE_NANOSLEEP |
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233 | # ifndef _WIN32 |
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234 | # include <sys/select.h> |
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235 | # endif |
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236 | #endif |
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237 | |
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238 | #if EV_USE_INOTIFY |
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239 | # include <sys/inotify.h> |
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240 | #endif |
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241 | |
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242 | #if EV_SELECT_IS_WINSOCKET |
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243 | # include <winsock.h> |
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244 | #endif |
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245 | |
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246 | /**/ |
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247 | |
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248 | /* |
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249 | * This is used to avoid floating point rounding problems. |
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250 | * It is added to ev_rt_now when scheduling periodics |
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251 | * to ensure progress, time-wise, even when rounding |
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252 | * errors are against us. |
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253 | * This value is good at least till the year 4000. |
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254 | * Better solutions welcome. |
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255 | */ |
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256 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
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257 | |
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258 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
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259 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
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260 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
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261 | |
142 | #if __GNUC__ >= 3 |
262 | #if __GNUC__ >= 4 |
143 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
144 | # define inline inline |
264 | # define noinline __attribute__ ((noinline)) |
145 | #else |
265 | #else |
146 | # define expect(expr,value) (expr) |
266 | # define expect(expr,value) (expr) |
147 | # define inline static |
267 | # define noinline |
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268 | # if __STDC_VERSION__ < 199901L |
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269 | # define inline |
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270 | # endif |
148 | #endif |
271 | #endif |
149 | |
272 | |
150 | #define expect_false(expr) expect ((expr) != 0, 0) |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
151 | #define expect_true(expr) expect ((expr) != 0, 1) |
274 | #define expect_true(expr) expect ((expr) != 0, 1) |
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275 | #define inline_size static inline |
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276 | |
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277 | #if EV_MINIMAL |
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278 | # define inline_speed static noinline |
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279 | #else |
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280 | # define inline_speed static inline |
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281 | #endif |
152 | |
282 | |
153 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
283 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
154 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
284 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
155 | |
285 | |
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286 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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287 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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288 | |
156 | typedef struct ev_watcher *W; |
289 | typedef ev_watcher *W; |
157 | typedef struct ev_watcher_list *WL; |
290 | typedef ev_watcher_list *WL; |
158 | typedef struct ev_watcher_time *WT; |
291 | typedef ev_watcher_time *WT; |
159 | |
292 | |
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293 | #if EV_USE_MONOTONIC |
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294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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295 | /* giving it a reasonably high chance of working on typical architetcures */ |
160 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
296 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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297 | #endif |
161 | |
298 | |
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299 | #ifdef _WIN32 |
162 | #include "ev_win32.c" |
300 | # include "ev_win32.c" |
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301 | #endif |
163 | |
302 | |
164 | /*****************************************************************************/ |
303 | /*****************************************************************************/ |
165 | |
304 | |
166 | static void (*syserr_cb)(const char *msg); |
305 | static void (*syserr_cb)(const char *msg); |
167 | |
306 | |
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307 | void |
168 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
308 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
169 | { |
309 | { |
170 | syserr_cb = cb; |
310 | syserr_cb = cb; |
171 | } |
311 | } |
172 | |
312 | |
173 | static void |
313 | static void noinline |
174 | syserr (const char *msg) |
314 | syserr (const char *msg) |
175 | { |
315 | { |
176 | if (!msg) |
316 | if (!msg) |
177 | msg = "(libev) system error"; |
317 | msg = "(libev) system error"; |
178 | |
318 | |
… | |
… | |
185 | } |
325 | } |
186 | } |
326 | } |
187 | |
327 | |
188 | static void *(*alloc)(void *ptr, long size); |
328 | static void *(*alloc)(void *ptr, long size); |
189 | |
329 | |
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330 | void |
190 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
191 | { |
332 | { |
192 | alloc = cb; |
333 | alloc = cb; |
193 | } |
334 | } |
194 | |
335 | |
195 | static void * |
336 | inline_speed void * |
196 | ev_realloc (void *ptr, long size) |
337 | ev_realloc (void *ptr, long size) |
197 | { |
338 | { |
198 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
199 | |
340 | |
200 | if (!ptr && size) |
341 | if (!ptr && size) |
… | |
… | |
214 | typedef struct |
355 | typedef struct |
215 | { |
356 | { |
216 | WL head; |
357 | WL head; |
217 | unsigned char events; |
358 | unsigned char events; |
218 | unsigned char reify; |
359 | unsigned char reify; |
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360 | #if EV_SELECT_IS_WINSOCKET |
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361 | SOCKET handle; |
|
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362 | #endif |
219 | } ANFD; |
363 | } ANFD; |
220 | |
364 | |
221 | typedef struct |
365 | typedef struct |
222 | { |
366 | { |
223 | W w; |
367 | W w; |
224 | int events; |
368 | int events; |
225 | } ANPENDING; |
369 | } ANPENDING; |
226 | |
370 | |
|
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371 | #if EV_USE_INOTIFY |
|
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372 | typedef struct |
|
|
373 | { |
|
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374 | WL head; |
|
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375 | } ANFS; |
|
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376 | #endif |
|
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377 | |
227 | #if EV_MULTIPLICITY |
378 | #if EV_MULTIPLICITY |
228 | |
379 | |
229 | struct ev_loop |
380 | struct ev_loop |
230 | { |
381 | { |
231 | ev_tstamp ev_rt_now; |
382 | ev_tstamp ev_rt_now; |
|
|
383 | #define ev_rt_now ((loop)->ev_rt_now) |
232 | #define VAR(name,decl) decl; |
384 | #define VAR(name,decl) decl; |
233 | #include "ev_vars.h" |
385 | #include "ev_vars.h" |
234 | #undef VAR |
386 | #undef VAR |
235 | }; |
387 | }; |
236 | #include "ev_wrap.h" |
388 | #include "ev_wrap.h" |
237 | |
389 | |
238 | struct ev_loop default_loop_struct; |
390 | static struct ev_loop default_loop_struct; |
239 | static struct ev_loop *default_loop; |
391 | struct ev_loop *ev_default_loop_ptr; |
240 | |
392 | |
241 | #else |
393 | #else |
242 | |
394 | |
243 | ev_tstamp ev_rt_now; |
395 | ev_tstamp ev_rt_now; |
244 | #define VAR(name,decl) static decl; |
396 | #define VAR(name,decl) static decl; |
245 | #include "ev_vars.h" |
397 | #include "ev_vars.h" |
246 | #undef VAR |
398 | #undef VAR |
247 | |
399 | |
248 | static int default_loop; |
400 | static int ev_default_loop_ptr; |
249 | |
401 | |
250 | #endif |
402 | #endif |
251 | |
403 | |
252 | /*****************************************************************************/ |
404 | /*****************************************************************************/ |
253 | |
405 | |
254 | inline ev_tstamp |
406 | ev_tstamp |
255 | ev_time (void) |
407 | ev_time (void) |
256 | { |
408 | { |
257 | #if EV_USE_REALTIME |
409 | #if EV_USE_REALTIME |
258 | struct timespec ts; |
410 | struct timespec ts; |
259 | clock_gettime (CLOCK_REALTIME, &ts); |
411 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
263 | gettimeofday (&tv, 0); |
415 | gettimeofday (&tv, 0); |
264 | return tv.tv_sec + tv.tv_usec * 1e-6; |
416 | return tv.tv_sec + tv.tv_usec * 1e-6; |
265 | #endif |
417 | #endif |
266 | } |
418 | } |
267 | |
419 | |
268 | inline ev_tstamp |
420 | ev_tstamp inline_size |
269 | get_clock (void) |
421 | get_clock (void) |
270 | { |
422 | { |
271 | #if EV_USE_MONOTONIC |
423 | #if EV_USE_MONOTONIC |
272 | if (expect_true (have_monotonic)) |
424 | if (expect_true (have_monotonic)) |
273 | { |
425 | { |
… | |
… | |
286 | { |
438 | { |
287 | return ev_rt_now; |
439 | return ev_rt_now; |
288 | } |
440 | } |
289 | #endif |
441 | #endif |
290 | |
442 | |
291 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
443 | void |
|
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444 | ev_sleep (ev_tstamp delay) |
|
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445 | { |
|
|
446 | if (delay > 0.) |
|
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447 | { |
|
|
448 | #if EV_USE_NANOSLEEP |
|
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449 | struct timespec ts; |
|
|
450 | |
|
|
451 | ts.tv_sec = (time_t)delay; |
|
|
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
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453 | |
|
|
454 | nanosleep (&ts, 0); |
|
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455 | #elif defined(_WIN32) |
|
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456 | Sleep (delay * 1e3); |
|
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457 | #else |
|
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458 | struct timeval tv; |
|
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459 | |
|
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460 | tv.tv_sec = (time_t)delay; |
|
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461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
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462 | |
|
|
463 | select (0, 0, 0, 0, &tv); |
|
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464 | #endif |
|
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465 | } |
|
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466 | } |
|
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467 | |
|
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468 | /*****************************************************************************/ |
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469 | |
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470 | int inline_size |
|
|
471 | array_nextsize (int elem, int cur, int cnt) |
|
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472 | { |
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473 | int ncur = cur + 1; |
|
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474 | |
|
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475 | do |
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476 | ncur <<= 1; |
|
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477 | while (cnt > ncur); |
|
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478 | |
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479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
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480 | if (elem * ncur > 4096) |
|
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481 | { |
|
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482 | ncur *= elem; |
|
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483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
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484 | ncur = ncur - sizeof (void *) * 4; |
|
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485 | ncur /= elem; |
|
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486 | } |
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487 | |
|
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488 | return ncur; |
|
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489 | } |
|
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490 | |
|
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491 | static noinline void * |
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492 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
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493 | { |
|
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494 | *cur = array_nextsize (elem, *cur, cnt); |
|
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495 | return ev_realloc (base, elem * *cur); |
|
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496 | } |
292 | |
497 | |
293 | #define array_needsize(type,base,cur,cnt,init) \ |
498 | #define array_needsize(type,base,cur,cnt,init) \ |
294 | if (expect_false ((cnt) > cur)) \ |
499 | if (expect_false ((cnt) > (cur))) \ |
295 | { \ |
500 | { \ |
296 | int newcnt = cur; \ |
501 | int ocur_ = (cur); \ |
297 | do \ |
502 | (base) = (type *)array_realloc \ |
298 | { \ |
503 | (sizeof (type), (base), &(cur), (cnt)); \ |
299 | newcnt = array_roundsize (type, newcnt << 1); \ |
504 | init ((base) + (ocur_), (cur) - ocur_); \ |
300 | } \ |
|
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301 | while ((cnt) > newcnt); \ |
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302 | \ |
|
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303 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
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304 | init (base + cur, newcnt - cur); \ |
|
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305 | cur = newcnt; \ |
|
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306 | } |
505 | } |
307 | |
506 | |
|
|
507 | #if 0 |
308 | #define array_slim(type,stem) \ |
508 | #define array_slim(type,stem) \ |
309 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
509 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
310 | { \ |
510 | { \ |
311 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
511 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
312 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
512 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
313 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
513 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
314 | } |
514 | } |
315 | |
515 | #endif |
316 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
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317 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
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318 | #define array_free_microshit(stem) \ |
|
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319 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
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320 | |
516 | |
321 | #define array_free(stem, idx) \ |
517 | #define array_free(stem, idx) \ |
322 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
518 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
323 | |
519 | |
324 | /*****************************************************************************/ |
520 | /*****************************************************************************/ |
325 | |
521 | |
326 | static void |
522 | void noinline |
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523 | ev_feed_event (EV_P_ void *w, int revents) |
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524 | { |
|
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525 | W w_ = (W)w; |
|
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526 | int pri = ABSPRI (w_); |
|
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527 | |
|
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528 | if (expect_false (w_->pending)) |
|
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529 | pendings [pri][w_->pending - 1].events |= revents; |
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530 | else |
|
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531 | { |
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532 | w_->pending = ++pendingcnt [pri]; |
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533 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
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534 | pendings [pri][w_->pending - 1].w = w_; |
|
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535 | pendings [pri][w_->pending - 1].events = revents; |
|
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536 | } |
|
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537 | } |
|
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538 | |
|
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539 | void inline_speed |
|
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540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
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541 | { |
|
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542 | int i; |
|
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543 | |
|
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544 | for (i = 0; i < eventcnt; ++i) |
|
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545 | ev_feed_event (EV_A_ events [i], type); |
|
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546 | } |
|
|
547 | |
|
|
548 | /*****************************************************************************/ |
|
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549 | |
|
|
550 | void inline_size |
327 | anfds_init (ANFD *base, int count) |
551 | anfds_init (ANFD *base, int count) |
328 | { |
552 | { |
329 | while (count--) |
553 | while (count--) |
330 | { |
554 | { |
331 | base->head = 0; |
555 | base->head = 0; |
… | |
… | |
334 | |
558 | |
335 | ++base; |
559 | ++base; |
336 | } |
560 | } |
337 | } |
561 | } |
338 | |
562 | |
339 | void |
563 | void inline_speed |
340 | ev_feed_event (EV_P_ void *w, int revents) |
|
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341 | { |
|
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342 | W w_ = (W)w; |
|
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343 | |
|
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344 | if (w_->pending) |
|
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345 | { |
|
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346 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
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347 | return; |
|
|
348 | } |
|
|
349 | |
|
|
350 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
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351 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
|
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352 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
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353 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
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354 | } |
|
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355 | |
|
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356 | static void |
|
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357 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
358 | { |
|
|
359 | int i; |
|
|
360 | |
|
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361 | for (i = 0; i < eventcnt; ++i) |
|
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362 | ev_feed_event (EV_A_ events [i], type); |
|
|
363 | } |
|
|
364 | |
|
|
365 | inline void |
|
|
366 | fd_event (EV_P_ int fd, int revents) |
564 | fd_event (EV_P_ int fd, int revents) |
367 | { |
565 | { |
368 | ANFD *anfd = anfds + fd; |
566 | ANFD *anfd = anfds + fd; |
369 | struct ev_io *w; |
567 | ev_io *w; |
370 | |
568 | |
371 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
569 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
372 | { |
570 | { |
373 | int ev = w->events & revents; |
571 | int ev = w->events & revents; |
374 | |
572 | |
375 | if (ev) |
573 | if (ev) |
376 | ev_feed_event (EV_A_ (W)w, ev); |
574 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
378 | } |
576 | } |
379 | |
577 | |
380 | void |
578 | void |
381 | ev_feed_fd_event (EV_P_ int fd, int revents) |
579 | ev_feed_fd_event (EV_P_ int fd, int revents) |
382 | { |
580 | { |
|
|
581 | if (fd >= 0 && fd < anfdmax) |
383 | fd_event (EV_A_ fd, revents); |
582 | fd_event (EV_A_ fd, revents); |
384 | } |
583 | } |
385 | |
584 | |
386 | /*****************************************************************************/ |
585 | void inline_size |
387 | |
|
|
388 | static void |
|
|
389 | fd_reify (EV_P) |
586 | fd_reify (EV_P) |
390 | { |
587 | { |
391 | int i; |
588 | int i; |
392 | |
589 | |
393 | for (i = 0; i < fdchangecnt; ++i) |
590 | for (i = 0; i < fdchangecnt; ++i) |
394 | { |
591 | { |
395 | int fd = fdchanges [i]; |
592 | int fd = fdchanges [i]; |
396 | ANFD *anfd = anfds + fd; |
593 | ANFD *anfd = anfds + fd; |
397 | struct ev_io *w; |
594 | ev_io *w; |
398 | |
595 | |
399 | int events = 0; |
596 | unsigned char events = 0; |
400 | |
597 | |
401 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
598 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
402 | events |= w->events; |
599 | events |= (unsigned char)w->events; |
403 | |
600 | |
|
|
601 | #if EV_SELECT_IS_WINSOCKET |
|
|
602 | if (events) |
|
|
603 | { |
|
|
604 | unsigned long argp; |
|
|
605 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
607 | #else |
|
|
608 | anfd->handle = _get_osfhandle (fd); |
|
|
609 | #endif |
|
|
610 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
611 | } |
|
|
612 | #endif |
|
|
613 | |
|
|
614 | { |
|
|
615 | unsigned char o_events = anfd->events; |
|
|
616 | unsigned char o_reify = anfd->reify; |
|
|
617 | |
404 | anfd->reify = 0; |
618 | anfd->reify = 0; |
405 | |
|
|
406 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
407 | anfd->events = events; |
619 | anfd->events = events; |
|
|
620 | |
|
|
621 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
622 | backend_modify (EV_A_ fd, o_events, events); |
|
|
623 | } |
408 | } |
624 | } |
409 | |
625 | |
410 | fdchangecnt = 0; |
626 | fdchangecnt = 0; |
411 | } |
627 | } |
412 | |
628 | |
413 | static void |
629 | void inline_size |
414 | fd_change (EV_P_ int fd) |
630 | fd_change (EV_P_ int fd, int flags) |
415 | { |
631 | { |
416 | if (anfds [fd].reify) |
632 | unsigned char reify = anfds [fd].reify; |
417 | return; |
|
|
418 | |
|
|
419 | anfds [fd].reify = 1; |
633 | anfds [fd].reify |= flags; |
420 | |
634 | |
|
|
635 | if (expect_true (!reify)) |
|
|
636 | { |
421 | ++fdchangecnt; |
637 | ++fdchangecnt; |
422 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
638 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
423 | fdchanges [fdchangecnt - 1] = fd; |
639 | fdchanges [fdchangecnt - 1] = fd; |
|
|
640 | } |
424 | } |
641 | } |
425 | |
642 | |
426 | static void |
643 | void inline_speed |
427 | fd_kill (EV_P_ int fd) |
644 | fd_kill (EV_P_ int fd) |
428 | { |
645 | { |
429 | struct ev_io *w; |
646 | ev_io *w; |
430 | |
647 | |
431 | while ((w = (struct ev_io *)anfds [fd].head)) |
648 | while ((w = (ev_io *)anfds [fd].head)) |
432 | { |
649 | { |
433 | ev_io_stop (EV_A_ w); |
650 | ev_io_stop (EV_A_ w); |
434 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
651 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
435 | } |
652 | } |
436 | } |
653 | } |
437 | |
654 | |
438 | static int |
655 | int inline_size |
439 | fd_valid (int fd) |
656 | fd_valid (int fd) |
440 | { |
657 | { |
441 | #ifdef WIN32 |
658 | #ifdef _WIN32 |
442 | return !!win32_get_osfhandle (fd); |
659 | return _get_osfhandle (fd) != -1; |
443 | #else |
660 | #else |
444 | return fcntl (fd, F_GETFD) != -1; |
661 | return fcntl (fd, F_GETFD) != -1; |
445 | #endif |
662 | #endif |
446 | } |
663 | } |
447 | |
664 | |
448 | /* called on EBADF to verify fds */ |
665 | /* called on EBADF to verify fds */ |
449 | static void |
666 | static void noinline |
450 | fd_ebadf (EV_P) |
667 | fd_ebadf (EV_P) |
451 | { |
668 | { |
452 | int fd; |
669 | int fd; |
453 | |
670 | |
454 | for (fd = 0; fd < anfdmax; ++fd) |
671 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
456 | if (!fd_valid (fd) == -1 && errno == EBADF) |
673 | if (!fd_valid (fd) == -1 && errno == EBADF) |
457 | fd_kill (EV_A_ fd); |
674 | fd_kill (EV_A_ fd); |
458 | } |
675 | } |
459 | |
676 | |
460 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
677 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
461 | static void |
678 | static void noinline |
462 | fd_enomem (EV_P) |
679 | fd_enomem (EV_P) |
463 | { |
680 | { |
464 | int fd; |
681 | int fd; |
465 | |
682 | |
466 | for (fd = anfdmax; fd--; ) |
683 | for (fd = anfdmax; fd--; ) |
… | |
… | |
469 | fd_kill (EV_A_ fd); |
686 | fd_kill (EV_A_ fd); |
470 | return; |
687 | return; |
471 | } |
688 | } |
472 | } |
689 | } |
473 | |
690 | |
474 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
691 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
475 | static void |
692 | static void noinline |
476 | fd_rearm_all (EV_P) |
693 | fd_rearm_all (EV_P) |
477 | { |
694 | { |
478 | int fd; |
695 | int fd; |
479 | |
696 | |
480 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
481 | for (fd = 0; fd < anfdmax; ++fd) |
697 | for (fd = 0; fd < anfdmax; ++fd) |
482 | if (anfds [fd].events) |
698 | if (anfds [fd].events) |
483 | { |
699 | { |
484 | anfds [fd].events = 0; |
700 | anfds [fd].events = 0; |
485 | fd_change (EV_A_ fd); |
701 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
486 | } |
702 | } |
487 | } |
703 | } |
488 | |
704 | |
489 | /*****************************************************************************/ |
705 | /*****************************************************************************/ |
490 | |
706 | |
491 | static void |
707 | void inline_speed |
492 | upheap (WT *heap, int k) |
708 | upheap (WT *heap, int k) |
493 | { |
709 | { |
494 | WT w = heap [k]; |
710 | WT w = heap [k]; |
495 | |
711 | |
496 | while (k && heap [k >> 1]->at > w->at) |
712 | while (k) |
497 | { |
713 | { |
|
|
714 | int p = (k - 1) >> 1; |
|
|
715 | |
|
|
716 | if (heap [p]->at <= w->at) |
|
|
717 | break; |
|
|
718 | |
498 | heap [k] = heap [k >> 1]; |
719 | heap [k] = heap [p]; |
499 | ((W)heap [k])->active = k + 1; |
720 | ((W)heap [k])->active = k + 1; |
500 | k >>= 1; |
721 | k = p; |
501 | } |
722 | } |
502 | |
723 | |
503 | heap [k] = w; |
724 | heap [k] = w; |
504 | ((W)heap [k])->active = k + 1; |
725 | ((W)heap [k])->active = k + 1; |
505 | |
|
|
506 | } |
726 | } |
507 | |
727 | |
508 | static void |
728 | void inline_speed |
509 | downheap (WT *heap, int N, int k) |
729 | downheap (WT *heap, int N, int k) |
510 | { |
730 | { |
511 | WT w = heap [k]; |
731 | WT w = heap [k]; |
512 | |
732 | |
513 | while (k < (N >> 1)) |
733 | for (;;) |
514 | { |
734 | { |
515 | int j = k << 1; |
735 | int c = (k << 1) + 1; |
516 | |
736 | |
517 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
737 | if (c >= N) |
518 | ++j; |
|
|
519 | |
|
|
520 | if (w->at <= heap [j]->at) |
|
|
521 | break; |
738 | break; |
522 | |
739 | |
|
|
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
741 | ? 1 : 0; |
|
|
742 | |
|
|
743 | if (w->at <= heap [c]->at) |
|
|
744 | break; |
|
|
745 | |
523 | heap [k] = heap [j]; |
746 | heap [k] = heap [c]; |
524 | ((W)heap [k])->active = k + 1; |
747 | ((W)heap [k])->active = k + 1; |
|
|
748 | |
525 | k = j; |
749 | k = c; |
526 | } |
750 | } |
527 | |
751 | |
528 | heap [k] = w; |
752 | heap [k] = w; |
529 | ((W)heap [k])->active = k + 1; |
753 | ((W)heap [k])->active = k + 1; |
530 | } |
754 | } |
531 | |
755 | |
532 | inline void |
756 | void inline_size |
533 | adjustheap (WT *heap, int N, int k, ev_tstamp at) |
757 | adjustheap (WT *heap, int N, int k) |
534 | { |
758 | { |
535 | ev_tstamp old_at = heap [k]->at; |
759 | upheap (heap, k); |
536 | heap [k]->at = at; |
|
|
537 | |
|
|
538 | if (old_at < at) |
|
|
539 | downheap (heap, N, k); |
760 | downheap (heap, N, k); |
540 | else |
|
|
541 | upheap (heap, k); |
|
|
542 | } |
761 | } |
543 | |
762 | |
544 | /*****************************************************************************/ |
763 | /*****************************************************************************/ |
545 | |
764 | |
546 | typedef struct |
765 | typedef struct |
547 | { |
766 | { |
548 | WL head; |
767 | WL head; |
549 | sig_atomic_t volatile gotsig; |
768 | EV_ATOMIC_T gotsig; |
550 | } ANSIG; |
769 | } ANSIG; |
551 | |
770 | |
552 | static ANSIG *signals; |
771 | static ANSIG *signals; |
553 | static int signalmax; |
772 | static int signalmax; |
554 | |
773 | |
555 | static int sigpipe [2]; |
774 | static EV_ATOMIC_T gotsig; |
556 | static sig_atomic_t volatile gotsig; |
|
|
557 | static struct ev_io sigev; |
|
|
558 | |
775 | |
559 | static void |
776 | void inline_size |
560 | signals_init (ANSIG *base, int count) |
777 | signals_init (ANSIG *base, int count) |
561 | { |
778 | { |
562 | while (count--) |
779 | while (count--) |
563 | { |
780 | { |
564 | base->head = 0; |
781 | base->head = 0; |
… | |
… | |
566 | |
783 | |
567 | ++base; |
784 | ++base; |
568 | } |
785 | } |
569 | } |
786 | } |
570 | |
787 | |
|
|
788 | /*****************************************************************************/ |
|
|
789 | |
|
|
790 | void inline_speed |
|
|
791 | fd_intern (int fd) |
|
|
792 | { |
|
|
793 | #ifdef _WIN32 |
|
|
794 | int arg = 1; |
|
|
795 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
796 | #else |
|
|
797 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
798 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
799 | #endif |
|
|
800 | } |
|
|
801 | |
|
|
802 | static void noinline |
|
|
803 | evpipe_init (EV_P) |
|
|
804 | { |
|
|
805 | if (!ev_is_active (&pipeev)) |
|
|
806 | { |
|
|
807 | while (pipe (evpipe)) |
|
|
808 | syserr ("(libev) error creating signal/async pipe"); |
|
|
809 | |
|
|
810 | fd_intern (evpipe [0]); |
|
|
811 | fd_intern (evpipe [1]); |
|
|
812 | |
|
|
813 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
814 | ev_io_start (EV_A_ &pipeev); |
|
|
815 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
816 | } |
|
|
817 | } |
|
|
818 | |
|
|
819 | void inline_size |
|
|
820 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
821 | { |
|
|
822 | if (!*flag) |
|
|
823 | { |
|
|
824 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
825 | |
|
|
826 | *flag = 1; |
|
|
827 | write (evpipe [1], &old_errno, 1); |
|
|
828 | |
|
|
829 | errno = old_errno; |
|
|
830 | } |
|
|
831 | } |
|
|
832 | |
|
|
833 | static void |
|
|
834 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
835 | { |
|
|
836 | { |
|
|
837 | int dummy; |
|
|
838 | read (evpipe [0], &dummy, 1); |
|
|
839 | } |
|
|
840 | |
|
|
841 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
842 | { |
|
|
843 | int signum; |
|
|
844 | gotsig = 0; |
|
|
845 | |
|
|
846 | for (signum = signalmax; signum--; ) |
|
|
847 | if (signals [signum].gotsig) |
|
|
848 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
849 | } |
|
|
850 | |
|
|
851 | #if EV_ASYNC_ENABLE |
|
|
852 | if (gotasync) |
|
|
853 | { |
|
|
854 | int i; |
|
|
855 | gotasync = 0; |
|
|
856 | |
|
|
857 | for (i = asynccnt; i--; ) |
|
|
858 | if (asyncs [i]->sent) |
|
|
859 | { |
|
|
860 | asyncs [i]->sent = 0; |
|
|
861 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
862 | } |
|
|
863 | } |
|
|
864 | #endif |
|
|
865 | } |
|
|
866 | |
|
|
867 | /*****************************************************************************/ |
|
|
868 | |
571 | static void |
869 | static void |
572 | sighandler (int signum) |
870 | sighandler (int signum) |
573 | { |
871 | { |
|
|
872 | #if EV_MULTIPLICITY |
|
|
873 | struct ev_loop *loop = &default_loop_struct; |
|
|
874 | #endif |
|
|
875 | |
574 | #if WIN32 |
876 | #if _WIN32 |
575 | signal (signum, sighandler); |
877 | signal (signum, sighandler); |
576 | #endif |
878 | #endif |
577 | |
879 | |
578 | signals [signum - 1].gotsig = 1; |
880 | signals [signum - 1].gotsig = 1; |
579 | |
881 | evpipe_write (EV_A_ &gotsig); |
580 | if (!gotsig) |
|
|
581 | { |
|
|
582 | int old_errno = errno; |
|
|
583 | gotsig = 1; |
|
|
584 | #ifdef WIN32 |
|
|
585 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
586 | #else |
|
|
587 | write (sigpipe [1], &signum, 1); |
|
|
588 | #endif |
|
|
589 | errno = old_errno; |
|
|
590 | } |
|
|
591 | } |
882 | } |
592 | |
883 | |
593 | void |
884 | void noinline |
594 | ev_feed_signal_event (EV_P_ int signum) |
885 | ev_feed_signal_event (EV_P_ int signum) |
595 | { |
886 | { |
596 | WL w; |
887 | WL w; |
597 | |
888 | |
598 | #if EV_MULTIPLICITY |
889 | #if EV_MULTIPLICITY |
599 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
890 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
600 | #endif |
891 | #endif |
601 | |
892 | |
602 | --signum; |
893 | --signum; |
603 | |
894 | |
604 | if (signum < 0 || signum >= signalmax) |
895 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
608 | |
899 | |
609 | for (w = signals [signum].head; w; w = w->next) |
900 | for (w = signals [signum].head; w; w = w->next) |
610 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
901 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
611 | } |
902 | } |
612 | |
903 | |
613 | static void |
|
|
614 | sigcb (EV_P_ struct ev_io *iow, int revents) |
|
|
615 | { |
|
|
616 | int signum; |
|
|
617 | |
|
|
618 | #ifdef WIN32 |
|
|
619 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
|
|
620 | #else |
|
|
621 | read (sigpipe [0], &revents, 1); |
|
|
622 | #endif |
|
|
623 | gotsig = 0; |
|
|
624 | |
|
|
625 | for (signum = signalmax; signum--; ) |
|
|
626 | if (signals [signum].gotsig) |
|
|
627 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
628 | } |
|
|
629 | |
|
|
630 | static void |
|
|
631 | siginit (EV_P) |
|
|
632 | { |
|
|
633 | #ifndef WIN32 |
|
|
634 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
635 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
636 | |
|
|
637 | /* rather than sort out wether we really need nb, set it */ |
|
|
638 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
639 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
640 | #endif |
|
|
641 | |
|
|
642 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
643 | ev_io_start (EV_A_ &sigev); |
|
|
644 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
645 | } |
|
|
646 | |
|
|
647 | /*****************************************************************************/ |
904 | /*****************************************************************************/ |
648 | |
905 | |
649 | static struct ev_child *childs [PID_HASHSIZE]; |
906 | static WL childs [EV_PID_HASHSIZE]; |
650 | |
907 | |
651 | #ifndef WIN32 |
908 | #ifndef _WIN32 |
652 | |
909 | |
653 | static struct ev_signal childev; |
910 | static ev_signal childev; |
|
|
911 | |
|
|
912 | #ifndef WIFCONTINUED |
|
|
913 | # define WIFCONTINUED(status) 0 |
|
|
914 | #endif |
|
|
915 | |
|
|
916 | void inline_speed |
|
|
917 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
918 | { |
|
|
919 | ev_child *w; |
|
|
920 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
921 | |
|
|
922 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
923 | { |
|
|
924 | if ((w->pid == pid || !w->pid) |
|
|
925 | && (!traced || (w->flags & 1))) |
|
|
926 | { |
|
|
927 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
928 | w->rpid = pid; |
|
|
929 | w->rstatus = status; |
|
|
930 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
931 | } |
|
|
932 | } |
|
|
933 | } |
654 | |
934 | |
655 | #ifndef WCONTINUED |
935 | #ifndef WCONTINUED |
656 | # define WCONTINUED 0 |
936 | # define WCONTINUED 0 |
657 | #endif |
937 | #endif |
658 | |
938 | |
659 | static void |
939 | static void |
660 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
661 | { |
|
|
662 | struct ev_child *w; |
|
|
663 | |
|
|
664 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
665 | if (w->pid == pid || !w->pid) |
|
|
666 | { |
|
|
667 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
668 | w->rpid = pid; |
|
|
669 | w->rstatus = status; |
|
|
670 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
671 | } |
|
|
672 | } |
|
|
673 | |
|
|
674 | static void |
|
|
675 | childcb (EV_P_ struct ev_signal *sw, int revents) |
940 | childcb (EV_P_ ev_signal *sw, int revents) |
676 | { |
941 | { |
677 | int pid, status; |
942 | int pid, status; |
678 | |
943 | |
|
|
944 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
679 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
945 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
680 | { |
946 | if (!WCONTINUED |
|
|
947 | || errno != EINVAL |
|
|
948 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
949 | return; |
|
|
950 | |
681 | /* make sure we are called again until all childs have been reaped */ |
951 | /* make sure we are called again until all children have been reaped */ |
|
|
952 | /* we need to do it this way so that the callback gets called before we continue */ |
682 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
953 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
683 | |
954 | |
684 | child_reap (EV_A_ sw, pid, pid, status); |
955 | child_reap (EV_A_ pid, pid, status); |
|
|
956 | if (EV_PID_HASHSIZE > 1) |
685 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
957 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
686 | } |
|
|
687 | } |
958 | } |
688 | |
959 | |
689 | #endif |
960 | #endif |
690 | |
961 | |
691 | /*****************************************************************************/ |
962 | /*****************************************************************************/ |
692 | |
963 | |
|
|
964 | #if EV_USE_PORT |
|
|
965 | # include "ev_port.c" |
|
|
966 | #endif |
693 | #if EV_USE_KQUEUE |
967 | #if EV_USE_KQUEUE |
694 | # include "ev_kqueue.c" |
968 | # include "ev_kqueue.c" |
695 | #endif |
969 | #endif |
696 | #if EV_USE_EPOLL |
970 | #if EV_USE_EPOLL |
697 | # include "ev_epoll.c" |
971 | # include "ev_epoll.c" |
… | |
… | |
714 | { |
988 | { |
715 | return EV_VERSION_MINOR; |
989 | return EV_VERSION_MINOR; |
716 | } |
990 | } |
717 | |
991 | |
718 | /* return true if we are running with elevated privileges and should ignore env variables */ |
992 | /* return true if we are running with elevated privileges and should ignore env variables */ |
719 | static int |
993 | int inline_size |
720 | enable_secure (void) |
994 | enable_secure (void) |
721 | { |
995 | { |
722 | #ifdef WIN32 |
996 | #ifdef _WIN32 |
723 | return 0; |
997 | return 0; |
724 | #else |
998 | #else |
725 | return getuid () != geteuid () |
999 | return getuid () != geteuid () |
726 | || getgid () != getegid (); |
1000 | || getgid () != getegid (); |
727 | #endif |
1001 | #endif |
728 | } |
1002 | } |
729 | |
1003 | |
730 | int |
1004 | unsigned int |
731 | ev_method (EV_P) |
1005 | ev_supported_backends (void) |
732 | { |
1006 | { |
733 | return method; |
1007 | unsigned int flags = 0; |
734 | } |
|
|
735 | |
1008 | |
736 | static void |
1009 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
737 | loop_init (EV_P_ int methods) |
1010 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1011 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1012 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1013 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1014 | |
|
|
1015 | return flags; |
|
|
1016 | } |
|
|
1017 | |
|
|
1018 | unsigned int |
|
|
1019 | ev_recommended_backends (void) |
738 | { |
1020 | { |
739 | if (!method) |
1021 | unsigned int flags = ev_supported_backends (); |
|
|
1022 | |
|
|
1023 | #ifndef __NetBSD__ |
|
|
1024 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1025 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1026 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1027 | #endif |
|
|
1028 | #ifdef __APPLE__ |
|
|
1029 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1030 | flags &= ~EVBACKEND_POLL; |
|
|
1031 | #endif |
|
|
1032 | |
|
|
1033 | return flags; |
|
|
1034 | } |
|
|
1035 | |
|
|
1036 | unsigned int |
|
|
1037 | ev_embeddable_backends (void) |
|
|
1038 | { |
|
|
1039 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1040 | |
|
|
1041 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1042 | /* please fix it and tell me how to detect the fix */ |
|
|
1043 | flags &= ~EVBACKEND_EPOLL; |
|
|
1044 | |
|
|
1045 | return flags; |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | unsigned int |
|
|
1049 | ev_backend (EV_P) |
|
|
1050 | { |
|
|
1051 | return backend; |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | unsigned int |
|
|
1055 | ev_loop_count (EV_P) |
|
|
1056 | { |
|
|
1057 | return loop_count; |
|
|
1058 | } |
|
|
1059 | |
|
|
1060 | void |
|
|
1061 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1062 | { |
|
|
1063 | io_blocktime = interval; |
|
|
1064 | } |
|
|
1065 | |
|
|
1066 | void |
|
|
1067 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1068 | { |
|
|
1069 | timeout_blocktime = interval; |
|
|
1070 | } |
|
|
1071 | |
|
|
1072 | static void noinline |
|
|
1073 | loop_init (EV_P_ unsigned int flags) |
|
|
1074 | { |
|
|
1075 | if (!backend) |
740 | { |
1076 | { |
741 | #if EV_USE_MONOTONIC |
1077 | #if EV_USE_MONOTONIC |
742 | { |
1078 | { |
743 | struct timespec ts; |
1079 | struct timespec ts; |
744 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1080 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
745 | have_monotonic = 1; |
1081 | have_monotonic = 1; |
746 | } |
1082 | } |
747 | #endif |
1083 | #endif |
748 | |
1084 | |
749 | ev_rt_now = ev_time (); |
1085 | ev_rt_now = ev_time (); |
750 | mn_now = get_clock (); |
1086 | mn_now = get_clock (); |
751 | now_floor = mn_now; |
1087 | now_floor = mn_now; |
752 | rtmn_diff = ev_rt_now - mn_now; |
1088 | rtmn_diff = ev_rt_now - mn_now; |
753 | |
1089 | |
754 | if (methods == EVMETHOD_AUTO) |
1090 | io_blocktime = 0.; |
755 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1091 | timeout_blocktime = 0.; |
|
|
1092 | backend = 0; |
|
|
1093 | backend_fd = -1; |
|
|
1094 | gotasync = 0; |
|
|
1095 | #if EV_USE_INOTIFY |
|
|
1096 | fs_fd = -2; |
|
|
1097 | #endif |
|
|
1098 | |
|
|
1099 | /* pid check not overridable via env */ |
|
|
1100 | #ifndef _WIN32 |
|
|
1101 | if (flags & EVFLAG_FORKCHECK) |
|
|
1102 | curpid = getpid (); |
|
|
1103 | #endif |
|
|
1104 | |
|
|
1105 | if (!(flags & EVFLAG_NOENV) |
|
|
1106 | && !enable_secure () |
|
|
1107 | && getenv ("LIBEV_FLAGS")) |
756 | methods = atoi (getenv ("LIBEV_METHODS")); |
1108 | flags = atoi (getenv ("LIBEV_FLAGS")); |
757 | else |
|
|
758 | methods = EVMETHOD_ANY; |
|
|
759 | |
1109 | |
760 | method = 0; |
1110 | if (!(flags & 0x0000ffffUL)) |
761 | #if EV_USE_WIN32 |
1111 | flags |= ev_recommended_backends (); |
762 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
1112 | |
|
|
1113 | #if EV_USE_PORT |
|
|
1114 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
763 | #endif |
1115 | #endif |
764 | #if EV_USE_KQUEUE |
1116 | #if EV_USE_KQUEUE |
765 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
1117 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
766 | #endif |
1118 | #endif |
767 | #if EV_USE_EPOLL |
1119 | #if EV_USE_EPOLL |
768 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
1120 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
769 | #endif |
1121 | #endif |
770 | #if EV_USE_POLL |
1122 | #if EV_USE_POLL |
771 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
1123 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
772 | #endif |
1124 | #endif |
773 | #if EV_USE_SELECT |
1125 | #if EV_USE_SELECT |
774 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
1126 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
775 | #endif |
1127 | #endif |
776 | |
1128 | |
777 | ev_init (&sigev, sigcb); |
1129 | ev_init (&pipeev, pipecb); |
778 | ev_set_priority (&sigev, EV_MAXPRI); |
1130 | ev_set_priority (&pipeev, EV_MAXPRI); |
779 | } |
1131 | } |
780 | } |
1132 | } |
781 | |
1133 | |
782 | void |
1134 | static void noinline |
783 | loop_destroy (EV_P) |
1135 | loop_destroy (EV_P) |
784 | { |
1136 | { |
785 | int i; |
1137 | int i; |
786 | |
1138 | |
|
|
1139 | if (ev_is_active (&pipeev)) |
|
|
1140 | { |
|
|
1141 | ev_ref (EV_A); /* signal watcher */ |
|
|
1142 | ev_io_stop (EV_A_ &pipeev); |
|
|
1143 | |
|
|
1144 | close (evpipe [0]); evpipe [0] = 0; |
|
|
1145 | close (evpipe [1]); evpipe [1] = 0; |
|
|
1146 | } |
|
|
1147 | |
787 | #if EV_USE_WIN32 |
1148 | #if EV_USE_INOTIFY |
788 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
1149 | if (fs_fd >= 0) |
|
|
1150 | close (fs_fd); |
|
|
1151 | #endif |
|
|
1152 | |
|
|
1153 | if (backend_fd >= 0) |
|
|
1154 | close (backend_fd); |
|
|
1155 | |
|
|
1156 | #if EV_USE_PORT |
|
|
1157 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
789 | #endif |
1158 | #endif |
790 | #if EV_USE_KQUEUE |
1159 | #if EV_USE_KQUEUE |
791 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1160 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
792 | #endif |
1161 | #endif |
793 | #if EV_USE_EPOLL |
1162 | #if EV_USE_EPOLL |
794 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1163 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
795 | #endif |
1164 | #endif |
796 | #if EV_USE_POLL |
1165 | #if EV_USE_POLL |
797 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1166 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
798 | #endif |
1167 | #endif |
799 | #if EV_USE_SELECT |
1168 | #if EV_USE_SELECT |
800 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1169 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
801 | #endif |
1170 | #endif |
802 | |
1171 | |
803 | for (i = NUMPRI; i--; ) |
1172 | for (i = NUMPRI; i--; ) |
|
|
1173 | { |
804 | array_free (pending, [i]); |
1174 | array_free (pending, [i]); |
|
|
1175 | #if EV_IDLE_ENABLE |
|
|
1176 | array_free (idle, [i]); |
|
|
1177 | #endif |
|
|
1178 | } |
|
|
1179 | |
|
|
1180 | ev_free (anfds); anfdmax = 0; |
805 | |
1181 | |
806 | /* have to use the microsoft-never-gets-it-right macro */ |
1182 | /* have to use the microsoft-never-gets-it-right macro */ |
807 | array_free_microshit (fdchange); |
1183 | array_free (fdchange, EMPTY); |
808 | array_free_microshit (timer); |
1184 | array_free (timer, EMPTY); |
809 | array_free_microshit (periodic); |
1185 | #if EV_PERIODIC_ENABLE |
810 | array_free_microshit (idle); |
1186 | array_free (periodic, EMPTY); |
811 | array_free_microshit (prepare); |
1187 | #endif |
812 | array_free_microshit (check); |
1188 | #if EV_FORK_ENABLE |
|
|
1189 | array_free (fork, EMPTY); |
|
|
1190 | #endif |
|
|
1191 | array_free (prepare, EMPTY); |
|
|
1192 | array_free (check, EMPTY); |
|
|
1193 | #if EV_ASYNC_ENABLE |
|
|
1194 | array_free (async, EMPTY); |
|
|
1195 | #endif |
813 | |
1196 | |
814 | method = 0; |
1197 | backend = 0; |
815 | } |
1198 | } |
816 | |
1199 | |
817 | static void |
1200 | void inline_size infy_fork (EV_P); |
|
|
1201 | |
|
|
1202 | void inline_size |
818 | loop_fork (EV_P) |
1203 | loop_fork (EV_P) |
819 | { |
1204 | { |
|
|
1205 | #if EV_USE_PORT |
|
|
1206 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1207 | #endif |
|
|
1208 | #if EV_USE_KQUEUE |
|
|
1209 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1210 | #endif |
820 | #if EV_USE_EPOLL |
1211 | #if EV_USE_EPOLL |
821 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1212 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
822 | #endif |
1213 | #endif |
823 | #if EV_USE_KQUEUE |
1214 | #if EV_USE_INOTIFY |
824 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1215 | infy_fork (EV_A); |
825 | #endif |
1216 | #endif |
826 | |
1217 | |
827 | if (ev_is_active (&sigev)) |
1218 | if (ev_is_active (&pipeev)) |
828 | { |
1219 | { |
829 | /* default loop */ |
1220 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1221 | /* while we modify the fd vars */ |
|
|
1222 | gotsig = 1; |
|
|
1223 | #if EV_ASYNC_ENABLE |
|
|
1224 | gotasync = 1; |
|
|
1225 | #endif |
830 | |
1226 | |
831 | ev_ref (EV_A); |
1227 | ev_ref (EV_A); |
832 | ev_io_stop (EV_A_ &sigev); |
1228 | ev_io_stop (EV_A_ &pipeev); |
833 | close (sigpipe [0]); |
1229 | close (evpipe [0]); |
834 | close (sigpipe [1]); |
1230 | close (evpipe [1]); |
835 | |
1231 | |
836 | while (pipe (sigpipe)) |
|
|
837 | syserr ("(libev) error creating pipe"); |
|
|
838 | |
|
|
839 | siginit (EV_A); |
1232 | evpipe_init (EV_A); |
|
|
1233 | /* now iterate over everything, in case we missed something */ |
|
|
1234 | pipecb (EV_A_ &pipeev, EV_READ); |
840 | } |
1235 | } |
841 | |
1236 | |
842 | postfork = 0; |
1237 | postfork = 0; |
843 | } |
1238 | } |
844 | |
1239 | |
845 | #if EV_MULTIPLICITY |
1240 | #if EV_MULTIPLICITY |
846 | struct ev_loop * |
1241 | struct ev_loop * |
847 | ev_loop_new (int methods) |
1242 | ev_loop_new (unsigned int flags) |
848 | { |
1243 | { |
849 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1244 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
850 | |
1245 | |
851 | memset (loop, 0, sizeof (struct ev_loop)); |
1246 | memset (loop, 0, sizeof (struct ev_loop)); |
852 | |
1247 | |
853 | loop_init (EV_A_ methods); |
1248 | loop_init (EV_A_ flags); |
854 | |
1249 | |
855 | if (ev_method (EV_A)) |
1250 | if (ev_backend (EV_A)) |
856 | return loop; |
1251 | return loop; |
857 | |
1252 | |
858 | return 0; |
1253 | return 0; |
859 | } |
1254 | } |
860 | |
1255 | |
… | |
… | |
866 | } |
1261 | } |
867 | |
1262 | |
868 | void |
1263 | void |
869 | ev_loop_fork (EV_P) |
1264 | ev_loop_fork (EV_P) |
870 | { |
1265 | { |
871 | postfork = 1; |
1266 | postfork = 1; /* must be in line with ev_default_fork */ |
872 | } |
1267 | } |
873 | |
1268 | |
874 | #endif |
1269 | #endif |
875 | |
1270 | |
876 | #if EV_MULTIPLICITY |
1271 | #if EV_MULTIPLICITY |
877 | struct ev_loop * |
1272 | struct ev_loop * |
|
|
1273 | ev_default_loop_init (unsigned int flags) |
878 | #else |
1274 | #else |
879 | int |
1275 | int |
|
|
1276 | ev_default_loop (unsigned int flags) |
880 | #endif |
1277 | #endif |
881 | ev_default_loop (int methods) |
|
|
882 | { |
1278 | { |
883 | if (sigpipe [0] == sigpipe [1]) |
|
|
884 | if (pipe (sigpipe)) |
|
|
885 | return 0; |
|
|
886 | |
|
|
887 | if (!default_loop) |
1279 | if (!ev_default_loop_ptr) |
888 | { |
1280 | { |
889 | #if EV_MULTIPLICITY |
1281 | #if EV_MULTIPLICITY |
890 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1282 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
891 | #else |
1283 | #else |
892 | default_loop = 1; |
1284 | ev_default_loop_ptr = 1; |
893 | #endif |
1285 | #endif |
894 | |
1286 | |
895 | loop_init (EV_A_ methods); |
1287 | loop_init (EV_A_ flags); |
896 | |
1288 | |
897 | if (ev_method (EV_A)) |
1289 | if (ev_backend (EV_A)) |
898 | { |
1290 | { |
899 | siginit (EV_A); |
|
|
900 | |
|
|
901 | #ifndef WIN32 |
1291 | #ifndef _WIN32 |
902 | ev_signal_init (&childev, childcb, SIGCHLD); |
1292 | ev_signal_init (&childev, childcb, SIGCHLD); |
903 | ev_set_priority (&childev, EV_MAXPRI); |
1293 | ev_set_priority (&childev, EV_MAXPRI); |
904 | ev_signal_start (EV_A_ &childev); |
1294 | ev_signal_start (EV_A_ &childev); |
905 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1295 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
906 | #endif |
1296 | #endif |
907 | } |
1297 | } |
908 | else |
1298 | else |
909 | default_loop = 0; |
1299 | ev_default_loop_ptr = 0; |
910 | } |
1300 | } |
911 | |
1301 | |
912 | return default_loop; |
1302 | return ev_default_loop_ptr; |
913 | } |
1303 | } |
914 | |
1304 | |
915 | void |
1305 | void |
916 | ev_default_destroy (void) |
1306 | ev_default_destroy (void) |
917 | { |
1307 | { |
918 | #if EV_MULTIPLICITY |
1308 | #if EV_MULTIPLICITY |
919 | struct ev_loop *loop = default_loop; |
1309 | struct ev_loop *loop = ev_default_loop_ptr; |
920 | #endif |
1310 | #endif |
921 | |
1311 | |
922 | #ifndef WIN32 |
1312 | #ifndef _WIN32 |
923 | ev_ref (EV_A); /* child watcher */ |
1313 | ev_ref (EV_A); /* child watcher */ |
924 | ev_signal_stop (EV_A_ &childev); |
1314 | ev_signal_stop (EV_A_ &childev); |
925 | #endif |
1315 | #endif |
926 | |
1316 | |
927 | ev_ref (EV_A); /* signal watcher */ |
|
|
928 | ev_io_stop (EV_A_ &sigev); |
|
|
929 | |
|
|
930 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
931 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
932 | |
|
|
933 | loop_destroy (EV_A); |
1317 | loop_destroy (EV_A); |
934 | } |
1318 | } |
935 | |
1319 | |
936 | void |
1320 | void |
937 | ev_default_fork (void) |
1321 | ev_default_fork (void) |
938 | { |
1322 | { |
939 | #if EV_MULTIPLICITY |
1323 | #if EV_MULTIPLICITY |
940 | struct ev_loop *loop = default_loop; |
1324 | struct ev_loop *loop = ev_default_loop_ptr; |
941 | #endif |
1325 | #endif |
942 | |
1326 | |
943 | if (method) |
1327 | if (backend) |
944 | postfork = 1; |
1328 | postfork = 1; /* must be in line with ev_loop_fork */ |
945 | } |
1329 | } |
946 | |
1330 | |
947 | /*****************************************************************************/ |
1331 | /*****************************************************************************/ |
948 | |
1332 | |
949 | static int |
1333 | void |
950 | any_pending (EV_P) |
1334 | ev_invoke (EV_P_ void *w, int revents) |
951 | { |
1335 | { |
952 | int pri; |
1336 | EV_CB_INVOKE ((W)w, revents); |
953 | |
|
|
954 | for (pri = NUMPRI; pri--; ) |
|
|
955 | if (pendingcnt [pri]) |
|
|
956 | return 1; |
|
|
957 | |
|
|
958 | return 0; |
|
|
959 | } |
1337 | } |
960 | |
1338 | |
961 | static void |
1339 | void inline_speed |
962 | call_pending (EV_P) |
1340 | call_pending (EV_P) |
963 | { |
1341 | { |
964 | int pri; |
1342 | int pri; |
965 | |
1343 | |
966 | for (pri = NUMPRI; pri--; ) |
1344 | for (pri = NUMPRI; pri--; ) |
967 | while (pendingcnt [pri]) |
1345 | while (pendingcnt [pri]) |
968 | { |
1346 | { |
969 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1347 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
970 | |
1348 | |
971 | if (p->w) |
1349 | if (expect_true (p->w)) |
972 | { |
1350 | { |
|
|
1351 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1352 | |
973 | p->w->pending = 0; |
1353 | p->w->pending = 0; |
974 | EV_CB_INVOKE (p->w, p->events); |
1354 | EV_CB_INVOKE (p->w, p->events); |
975 | } |
1355 | } |
976 | } |
1356 | } |
977 | } |
1357 | } |
978 | |
1358 | |
979 | static void |
1359 | void inline_size |
980 | timers_reify (EV_P) |
1360 | timers_reify (EV_P) |
981 | { |
1361 | { |
982 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1362 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
983 | { |
1363 | { |
984 | struct ev_timer *w = timers [0]; |
1364 | ev_timer *w = (ev_timer *)timers [0]; |
985 | |
1365 | |
986 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1366 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
987 | |
1367 | |
988 | /* first reschedule or stop timer */ |
1368 | /* first reschedule or stop timer */ |
989 | if (w->repeat) |
1369 | if (w->repeat) |
990 | { |
1370 | { |
991 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1371 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
992 | |
1372 | |
993 | ((WT)w)->at += w->repeat; |
1373 | ((WT)w)->at += w->repeat; |
994 | if (((WT)w)->at < mn_now) |
1374 | if (((WT)w)->at < mn_now) |
995 | ((WT)w)->at = mn_now; |
1375 | ((WT)w)->at = mn_now; |
996 | |
1376 | |
997 | downheap ((WT *)timers, timercnt, 0); |
1377 | downheap (timers, timercnt, 0); |
998 | } |
1378 | } |
999 | else |
1379 | else |
1000 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1380 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1001 | |
1381 | |
1002 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1382 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1003 | } |
1383 | } |
1004 | } |
1384 | } |
1005 | |
1385 | |
1006 | static void |
1386 | #if EV_PERIODIC_ENABLE |
|
|
1387 | void inline_size |
1007 | periodics_reify (EV_P) |
1388 | periodics_reify (EV_P) |
1008 | { |
1389 | { |
1009 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1390 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1010 | { |
1391 | { |
1011 | struct ev_periodic *w = periodics [0]; |
1392 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1012 | |
1393 | |
1013 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1394 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1014 | |
1395 | |
1015 | /* first reschedule or stop timer */ |
1396 | /* first reschedule or stop timer */ |
1016 | if (w->reschedule_cb) |
1397 | if (w->reschedule_cb) |
1017 | { |
1398 | { |
1018 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1399 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1019 | |
|
|
1020 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1400 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1021 | downheap ((WT *)periodics, periodiccnt, 0); |
1401 | downheap (periodics, periodiccnt, 0); |
1022 | } |
1402 | } |
1023 | else if (w->interval) |
1403 | else if (w->interval) |
1024 | { |
1404 | { |
1025 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1405 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1406 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1026 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1407 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1027 | downheap ((WT *)periodics, periodiccnt, 0); |
1408 | downheap (periodics, periodiccnt, 0); |
1028 | } |
1409 | } |
1029 | else |
1410 | else |
1030 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1411 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1031 | |
1412 | |
1032 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1413 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1033 | } |
1414 | } |
1034 | } |
1415 | } |
1035 | |
1416 | |
1036 | static void |
1417 | static void noinline |
1037 | periodics_reschedule (EV_P) |
1418 | periodics_reschedule (EV_P) |
1038 | { |
1419 | { |
1039 | int i; |
1420 | int i; |
1040 | |
1421 | |
1041 | /* adjust periodics after time jump */ |
1422 | /* adjust periodics after time jump */ |
1042 | for (i = 0; i < periodiccnt; ++i) |
1423 | for (i = 0; i < periodiccnt; ++i) |
1043 | { |
1424 | { |
1044 | struct ev_periodic *w = periodics [i]; |
1425 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1045 | |
1426 | |
1046 | if (w->reschedule_cb) |
1427 | if (w->reschedule_cb) |
1047 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1428 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1048 | else if (w->interval) |
1429 | else if (w->interval) |
1049 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1430 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1050 | } |
1431 | } |
1051 | |
1432 | |
1052 | /* now rebuild the heap */ |
1433 | /* now rebuild the heap */ |
1053 | for (i = periodiccnt >> 1; i--; ) |
1434 | for (i = periodiccnt >> 1; i--; ) |
1054 | downheap ((WT *)periodics, periodiccnt, i); |
1435 | downheap (periodics, periodiccnt, i); |
1055 | } |
1436 | } |
|
|
1437 | #endif |
1056 | |
1438 | |
1057 | inline int |
1439 | #if EV_IDLE_ENABLE |
1058 | time_update_monotonic (EV_P) |
1440 | void inline_size |
|
|
1441 | idle_reify (EV_P) |
1059 | { |
1442 | { |
|
|
1443 | if (expect_false (idleall)) |
|
|
1444 | { |
|
|
1445 | int pri; |
|
|
1446 | |
|
|
1447 | for (pri = NUMPRI; pri--; ) |
|
|
1448 | { |
|
|
1449 | if (pendingcnt [pri]) |
|
|
1450 | break; |
|
|
1451 | |
|
|
1452 | if (idlecnt [pri]) |
|
|
1453 | { |
|
|
1454 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1455 | break; |
|
|
1456 | } |
|
|
1457 | } |
|
|
1458 | } |
|
|
1459 | } |
|
|
1460 | #endif |
|
|
1461 | |
|
|
1462 | void inline_speed |
|
|
1463 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1464 | { |
|
|
1465 | int i; |
|
|
1466 | |
|
|
1467 | #if EV_USE_MONOTONIC |
|
|
1468 | if (expect_true (have_monotonic)) |
|
|
1469 | { |
|
|
1470 | ev_tstamp odiff = rtmn_diff; |
|
|
1471 | |
1060 | mn_now = get_clock (); |
1472 | mn_now = get_clock (); |
1061 | |
1473 | |
|
|
1474 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1475 | /* interpolate in the meantime */ |
1062 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1476 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1063 | { |
1477 | { |
1064 | ev_rt_now = rtmn_diff + mn_now; |
1478 | ev_rt_now = rtmn_diff + mn_now; |
1065 | return 0; |
1479 | return; |
1066 | } |
1480 | } |
1067 | else |
1481 | |
1068 | { |
|
|
1069 | now_floor = mn_now; |
1482 | now_floor = mn_now; |
1070 | ev_rt_now = ev_time (); |
1483 | ev_rt_now = ev_time (); |
1071 | return 1; |
|
|
1072 | } |
|
|
1073 | } |
|
|
1074 | |
1484 | |
1075 | static void |
1485 | /* loop a few times, before making important decisions. |
1076 | time_update (EV_P) |
1486 | * on the choice of "4": one iteration isn't enough, |
1077 | { |
1487 | * in case we get preempted during the calls to |
1078 | int i; |
1488 | * ev_time and get_clock. a second call is almost guaranteed |
1079 | |
1489 | * to succeed in that case, though. and looping a few more times |
1080 | #if EV_USE_MONOTONIC |
1490 | * doesn't hurt either as we only do this on time-jumps or |
1081 | if (expect_true (have_monotonic)) |
1491 | * in the unlikely event of having been preempted here. |
1082 | { |
1492 | */ |
1083 | if (time_update_monotonic (EV_A)) |
1493 | for (i = 4; --i; ) |
1084 | { |
1494 | { |
1085 | ev_tstamp odiff = rtmn_diff; |
|
|
1086 | |
|
|
1087 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
1088 | { |
|
|
1089 | rtmn_diff = ev_rt_now - mn_now; |
1495 | rtmn_diff = ev_rt_now - mn_now; |
1090 | |
1496 | |
1091 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1497 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1092 | return; /* all is well */ |
1498 | return; /* all is well */ |
1093 | |
1499 | |
1094 | ev_rt_now = ev_time (); |
1500 | ev_rt_now = ev_time (); |
1095 | mn_now = get_clock (); |
1501 | mn_now = get_clock (); |
1096 | now_floor = mn_now; |
1502 | now_floor = mn_now; |
1097 | } |
1503 | } |
1098 | |
1504 | |
|
|
1505 | # if EV_PERIODIC_ENABLE |
|
|
1506 | periodics_reschedule (EV_A); |
|
|
1507 | # endif |
|
|
1508 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1509 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1510 | } |
|
|
1511 | else |
|
|
1512 | #endif |
|
|
1513 | { |
|
|
1514 | ev_rt_now = ev_time (); |
|
|
1515 | |
|
|
1516 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1517 | { |
|
|
1518 | #if EV_PERIODIC_ENABLE |
1099 | periodics_reschedule (EV_A); |
1519 | periodics_reschedule (EV_A); |
1100 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1101 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1102 | } |
|
|
1103 | } |
|
|
1104 | else |
|
|
1105 | #endif |
1520 | #endif |
1106 | { |
|
|
1107 | ev_rt_now = ev_time (); |
|
|
1108 | |
|
|
1109 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1110 | { |
|
|
1111 | periodics_reschedule (EV_A); |
|
|
1112 | |
|
|
1113 | /* adjust timers. this is easy, as the offset is the same for all */ |
1521 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1114 | for (i = 0; i < timercnt; ++i) |
1522 | for (i = 0; i < timercnt; ++i) |
1115 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1523 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1116 | } |
1524 | } |
1117 | |
1525 | |
1118 | mn_now = ev_rt_now; |
1526 | mn_now = ev_rt_now; |
… | |
… | |
1134 | static int loop_done; |
1542 | static int loop_done; |
1135 | |
1543 | |
1136 | void |
1544 | void |
1137 | ev_loop (EV_P_ int flags) |
1545 | ev_loop (EV_P_ int flags) |
1138 | { |
1546 | { |
1139 | double block; |
|
|
1140 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1547 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1548 | ? EVUNLOOP_ONE |
|
|
1549 | : EVUNLOOP_CANCEL; |
|
|
1550 | |
|
|
1551 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1141 | |
1552 | |
1142 | do |
1553 | do |
1143 | { |
1554 | { |
|
|
1555 | #ifndef _WIN32 |
|
|
1556 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1557 | if (expect_false (getpid () != curpid)) |
|
|
1558 | { |
|
|
1559 | curpid = getpid (); |
|
|
1560 | postfork = 1; |
|
|
1561 | } |
|
|
1562 | #endif |
|
|
1563 | |
|
|
1564 | #if EV_FORK_ENABLE |
|
|
1565 | /* we might have forked, so queue fork handlers */ |
|
|
1566 | if (expect_false (postfork)) |
|
|
1567 | if (forkcnt) |
|
|
1568 | { |
|
|
1569 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1570 | call_pending (EV_A); |
|
|
1571 | } |
|
|
1572 | #endif |
|
|
1573 | |
1144 | /* queue check watchers (and execute them) */ |
1574 | /* queue prepare watchers (and execute them) */ |
1145 | if (expect_false (preparecnt)) |
1575 | if (expect_false (preparecnt)) |
1146 | { |
1576 | { |
1147 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1577 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1148 | call_pending (EV_A); |
1578 | call_pending (EV_A); |
1149 | } |
1579 | } |
1150 | |
1580 | |
|
|
1581 | if (expect_false (!activecnt)) |
|
|
1582 | break; |
|
|
1583 | |
1151 | /* we might have forked, so reify kernel state if necessary */ |
1584 | /* we might have forked, so reify kernel state if necessary */ |
1152 | if (expect_false (postfork)) |
1585 | if (expect_false (postfork)) |
1153 | loop_fork (EV_A); |
1586 | loop_fork (EV_A); |
1154 | |
1587 | |
1155 | /* update fd-related kernel structures */ |
1588 | /* update fd-related kernel structures */ |
1156 | fd_reify (EV_A); |
1589 | fd_reify (EV_A); |
1157 | |
1590 | |
1158 | /* calculate blocking time */ |
1591 | /* calculate blocking time */ |
|
|
1592 | { |
|
|
1593 | ev_tstamp waittime = 0.; |
|
|
1594 | ev_tstamp sleeptime = 0.; |
1159 | |
1595 | |
1160 | /* we only need this for !monotonic clock or timers, but as we basically |
1596 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1161 | always have timers, we just calculate it always */ |
|
|
1162 | #if EV_USE_MONOTONIC |
|
|
1163 | if (expect_true (have_monotonic)) |
|
|
1164 | time_update_monotonic (EV_A); |
|
|
1165 | else |
|
|
1166 | #endif |
|
|
1167 | { |
1597 | { |
1168 | ev_rt_now = ev_time (); |
1598 | /* update time to cancel out callback processing overhead */ |
1169 | mn_now = ev_rt_now; |
1599 | time_update (EV_A_ 1e100); |
1170 | } |
|
|
1171 | |
1600 | |
1172 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1173 | block = 0.; |
|
|
1174 | else |
|
|
1175 | { |
|
|
1176 | block = MAX_BLOCKTIME; |
1601 | waittime = MAX_BLOCKTIME; |
1177 | |
1602 | |
1178 | if (timercnt) |
1603 | if (timercnt) |
1179 | { |
1604 | { |
1180 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1605 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1181 | if (block > to) block = to; |
1606 | if (waittime > to) waittime = to; |
1182 | } |
1607 | } |
1183 | |
1608 | |
|
|
1609 | #if EV_PERIODIC_ENABLE |
1184 | if (periodiccnt) |
1610 | if (periodiccnt) |
1185 | { |
1611 | { |
1186 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1612 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1187 | if (block > to) block = to; |
1613 | if (waittime > to) waittime = to; |
1188 | } |
1614 | } |
|
|
1615 | #endif |
1189 | |
1616 | |
1190 | if (block < 0.) block = 0.; |
1617 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1618 | waittime = timeout_blocktime; |
|
|
1619 | |
|
|
1620 | sleeptime = waittime - backend_fudge; |
|
|
1621 | |
|
|
1622 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1623 | sleeptime = io_blocktime; |
|
|
1624 | |
|
|
1625 | if (sleeptime) |
|
|
1626 | { |
|
|
1627 | ev_sleep (sleeptime); |
|
|
1628 | waittime -= sleeptime; |
|
|
1629 | } |
1191 | } |
1630 | } |
1192 | |
1631 | |
1193 | method_poll (EV_A_ block); |
1632 | ++loop_count; |
|
|
1633 | backend_poll (EV_A_ waittime); |
1194 | |
1634 | |
1195 | /* update ev_rt_now, do magic */ |
1635 | /* update ev_rt_now, do magic */ |
1196 | time_update (EV_A); |
1636 | time_update (EV_A_ waittime + sleeptime); |
|
|
1637 | } |
1197 | |
1638 | |
1198 | /* queue pending timers and reschedule them */ |
1639 | /* queue pending timers and reschedule them */ |
1199 | timers_reify (EV_A); /* relative timers called last */ |
1640 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1641 | #if EV_PERIODIC_ENABLE |
1200 | periodics_reify (EV_A); /* absolute timers called first */ |
1642 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1643 | #endif |
1201 | |
1644 | |
|
|
1645 | #if EV_IDLE_ENABLE |
1202 | /* queue idle watchers unless io or timers are pending */ |
1646 | /* queue idle watchers unless other events are pending */ |
1203 | if (idlecnt && !any_pending (EV_A)) |
1647 | idle_reify (EV_A); |
1204 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1648 | #endif |
1205 | |
1649 | |
1206 | /* queue check watchers, to be executed first */ |
1650 | /* queue check watchers, to be executed first */ |
1207 | if (checkcnt) |
1651 | if (expect_false (checkcnt)) |
1208 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1652 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1209 | |
1653 | |
1210 | call_pending (EV_A); |
1654 | call_pending (EV_A); |
|
|
1655 | |
1211 | } |
1656 | } |
1212 | while (activecnt && !loop_done); |
1657 | while (expect_true (activecnt && !loop_done)); |
1213 | |
1658 | |
1214 | if (loop_done != 2) |
1659 | if (loop_done == EVUNLOOP_ONE) |
1215 | loop_done = 0; |
1660 | loop_done = EVUNLOOP_CANCEL; |
1216 | } |
1661 | } |
1217 | |
1662 | |
1218 | void |
1663 | void |
1219 | ev_unloop (EV_P_ int how) |
1664 | ev_unloop (EV_P_ int how) |
1220 | { |
1665 | { |
1221 | loop_done = how; |
1666 | loop_done = how; |
1222 | } |
1667 | } |
1223 | |
1668 | |
1224 | /*****************************************************************************/ |
1669 | /*****************************************************************************/ |
1225 | |
1670 | |
1226 | inline void |
1671 | void inline_size |
1227 | wlist_add (WL *head, WL elem) |
1672 | wlist_add (WL *head, WL elem) |
1228 | { |
1673 | { |
1229 | elem->next = *head; |
1674 | elem->next = *head; |
1230 | *head = elem; |
1675 | *head = elem; |
1231 | } |
1676 | } |
1232 | |
1677 | |
1233 | inline void |
1678 | void inline_size |
1234 | wlist_del (WL *head, WL elem) |
1679 | wlist_del (WL *head, WL elem) |
1235 | { |
1680 | { |
1236 | while (*head) |
1681 | while (*head) |
1237 | { |
1682 | { |
1238 | if (*head == elem) |
1683 | if (*head == elem) |
… | |
… | |
1243 | |
1688 | |
1244 | head = &(*head)->next; |
1689 | head = &(*head)->next; |
1245 | } |
1690 | } |
1246 | } |
1691 | } |
1247 | |
1692 | |
1248 | inline void |
1693 | void inline_speed |
1249 | ev_clear_pending (EV_P_ W w) |
1694 | clear_pending (EV_P_ W w) |
1250 | { |
1695 | { |
1251 | if (w->pending) |
1696 | if (w->pending) |
1252 | { |
1697 | { |
1253 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1698 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1254 | w->pending = 0; |
1699 | w->pending = 0; |
1255 | } |
1700 | } |
1256 | } |
1701 | } |
1257 | |
1702 | |
1258 | inline void |
1703 | int |
|
|
1704 | ev_clear_pending (EV_P_ void *w) |
|
|
1705 | { |
|
|
1706 | W w_ = (W)w; |
|
|
1707 | int pending = w_->pending; |
|
|
1708 | |
|
|
1709 | if (expect_true (pending)) |
|
|
1710 | { |
|
|
1711 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1712 | w_->pending = 0; |
|
|
1713 | p->w = 0; |
|
|
1714 | return p->events; |
|
|
1715 | } |
|
|
1716 | else |
|
|
1717 | return 0; |
|
|
1718 | } |
|
|
1719 | |
|
|
1720 | void inline_size |
|
|
1721 | pri_adjust (EV_P_ W w) |
|
|
1722 | { |
|
|
1723 | int pri = w->priority; |
|
|
1724 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1725 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1726 | w->priority = pri; |
|
|
1727 | } |
|
|
1728 | |
|
|
1729 | void inline_speed |
1259 | ev_start (EV_P_ W w, int active) |
1730 | ev_start (EV_P_ W w, int active) |
1260 | { |
1731 | { |
1261 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1732 | pri_adjust (EV_A_ w); |
1262 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1263 | |
|
|
1264 | w->active = active; |
1733 | w->active = active; |
1265 | ev_ref (EV_A); |
1734 | ev_ref (EV_A); |
1266 | } |
1735 | } |
1267 | |
1736 | |
1268 | inline void |
1737 | void inline_size |
1269 | ev_stop (EV_P_ W w) |
1738 | ev_stop (EV_P_ W w) |
1270 | { |
1739 | { |
1271 | ev_unref (EV_A); |
1740 | ev_unref (EV_A); |
1272 | w->active = 0; |
1741 | w->active = 0; |
1273 | } |
1742 | } |
1274 | |
1743 | |
1275 | /*****************************************************************************/ |
1744 | /*****************************************************************************/ |
1276 | |
1745 | |
1277 | void |
1746 | void noinline |
1278 | ev_io_start (EV_P_ struct ev_io *w) |
1747 | ev_io_start (EV_P_ ev_io *w) |
1279 | { |
1748 | { |
1280 | int fd = w->fd; |
1749 | int fd = w->fd; |
1281 | |
1750 | |
1282 | if (ev_is_active (w)) |
1751 | if (expect_false (ev_is_active (w))) |
1283 | return; |
1752 | return; |
1284 | |
1753 | |
1285 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1754 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1286 | |
1755 | |
1287 | ev_start (EV_A_ (W)w, 1); |
1756 | ev_start (EV_A_ (W)w, 1); |
1288 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1757 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1289 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1758 | wlist_add (&anfds[fd].head, (WL)w); |
1290 | |
1759 | |
1291 | fd_change (EV_A_ fd); |
1760 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1761 | w->events &= ~EV_IOFDSET; |
1292 | } |
1762 | } |
1293 | |
1763 | |
1294 | void |
1764 | void noinline |
1295 | ev_io_stop (EV_P_ struct ev_io *w) |
1765 | ev_io_stop (EV_P_ ev_io *w) |
1296 | { |
1766 | { |
1297 | ev_clear_pending (EV_A_ (W)w); |
1767 | clear_pending (EV_A_ (W)w); |
1298 | if (!ev_is_active (w)) |
1768 | if (expect_false (!ev_is_active (w))) |
1299 | return; |
1769 | return; |
1300 | |
1770 | |
1301 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1771 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1302 | |
1772 | |
1303 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1773 | wlist_del (&anfds[w->fd].head, (WL)w); |
1304 | ev_stop (EV_A_ (W)w); |
1774 | ev_stop (EV_A_ (W)w); |
1305 | |
1775 | |
1306 | fd_change (EV_A_ w->fd); |
1776 | fd_change (EV_A_ w->fd, 1); |
1307 | } |
1777 | } |
1308 | |
1778 | |
1309 | void |
1779 | void noinline |
1310 | ev_timer_start (EV_P_ struct ev_timer *w) |
1780 | ev_timer_start (EV_P_ ev_timer *w) |
|
|
1781 | { |
|
|
1782 | if (expect_false (ev_is_active (w))) |
|
|
1783 | return; |
|
|
1784 | |
|
|
1785 | ((WT)w)->at += mn_now; |
|
|
1786 | |
|
|
1787 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
|
|
1788 | |
|
|
1789 | ev_start (EV_A_ (W)w, ++timercnt); |
|
|
1790 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
|
|
1791 | timers [timercnt - 1] = (WT)w; |
|
|
1792 | upheap (timers, timercnt - 1); |
|
|
1793 | |
|
|
1794 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1795 | } |
|
|
1796 | |
|
|
1797 | void noinline |
|
|
1798 | ev_timer_stop (EV_P_ ev_timer *w) |
|
|
1799 | { |
|
|
1800 | clear_pending (EV_A_ (W)w); |
|
|
1801 | if (expect_false (!ev_is_active (w))) |
|
|
1802 | return; |
|
|
1803 | |
|
|
1804 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
|
|
1805 | |
|
|
1806 | { |
|
|
1807 | int active = ((W)w)->active; |
|
|
1808 | |
|
|
1809 | if (expect_true (--active < --timercnt)) |
|
|
1810 | { |
|
|
1811 | timers [active] = timers [timercnt]; |
|
|
1812 | adjustheap (timers, timercnt, active); |
|
|
1813 | } |
|
|
1814 | } |
|
|
1815 | |
|
|
1816 | ((WT)w)->at -= mn_now; |
|
|
1817 | |
|
|
1818 | ev_stop (EV_A_ (W)w); |
|
|
1819 | } |
|
|
1820 | |
|
|
1821 | void noinline |
|
|
1822 | ev_timer_again (EV_P_ ev_timer *w) |
1311 | { |
1823 | { |
1312 | if (ev_is_active (w)) |
1824 | if (ev_is_active (w)) |
1313 | return; |
|
|
1314 | |
|
|
1315 | ((WT)w)->at += mn_now; |
|
|
1316 | |
|
|
1317 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
|
|
1318 | |
|
|
1319 | ev_start (EV_A_ (W)w, ++timercnt); |
|
|
1320 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
|
|
1321 | timers [timercnt - 1] = w; |
|
|
1322 | upheap ((WT *)timers, timercnt - 1); |
|
|
1323 | |
|
|
1324 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1325 | } |
|
|
1326 | |
|
|
1327 | void |
|
|
1328 | ev_timer_stop (EV_P_ struct ev_timer *w) |
|
|
1329 | { |
|
|
1330 | ev_clear_pending (EV_A_ (W)w); |
|
|
1331 | if (!ev_is_active (w)) |
|
|
1332 | return; |
|
|
1333 | |
|
|
1334 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1335 | |
|
|
1336 | if (((W)w)->active < timercnt--) |
|
|
1337 | { |
|
|
1338 | timers [((W)w)->active - 1] = timers [timercnt]; |
|
|
1339 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
|
|
1340 | } |
|
|
1341 | |
|
|
1342 | ((WT)w)->at = w->repeat; |
|
|
1343 | |
|
|
1344 | ev_stop (EV_A_ (W)w); |
|
|
1345 | } |
|
|
1346 | |
|
|
1347 | void |
|
|
1348 | ev_timer_again (EV_P_ struct ev_timer *w) |
|
|
1349 | { |
|
|
1350 | if (ev_is_active (w)) |
|
|
1351 | { |
1825 | { |
1352 | if (w->repeat) |
1826 | if (w->repeat) |
|
|
1827 | { |
|
|
1828 | ((WT)w)->at = mn_now + w->repeat; |
1353 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat); |
1829 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
|
|
1830 | } |
1354 | else |
1831 | else |
1355 | ev_timer_stop (EV_A_ w); |
1832 | ev_timer_stop (EV_A_ w); |
1356 | } |
1833 | } |
1357 | else if (w->repeat) |
1834 | else if (w->repeat) |
|
|
1835 | { |
|
|
1836 | w->at = w->repeat; |
1358 | ev_timer_start (EV_A_ w); |
1837 | ev_timer_start (EV_A_ w); |
|
|
1838 | } |
1359 | } |
1839 | } |
1360 | |
1840 | |
1361 | void |
1841 | #if EV_PERIODIC_ENABLE |
|
|
1842 | void noinline |
1362 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1843 | ev_periodic_start (EV_P_ ev_periodic *w) |
1363 | { |
1844 | { |
1364 | if (ev_is_active (w)) |
1845 | if (expect_false (ev_is_active (w))) |
1365 | return; |
1846 | return; |
1366 | |
1847 | |
1367 | if (w->reschedule_cb) |
1848 | if (w->reschedule_cb) |
1368 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1849 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1369 | else if (w->interval) |
1850 | else if (w->interval) |
1370 | { |
1851 | { |
1371 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1852 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1372 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1853 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1373 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1854 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1374 | } |
1855 | } |
|
|
1856 | else |
|
|
1857 | ((WT)w)->at = w->offset; |
1375 | |
1858 | |
1376 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1859 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1377 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1860 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1378 | periodics [periodiccnt - 1] = w; |
1861 | periodics [periodiccnt - 1] = (WT)w; |
1379 | upheap ((WT *)periodics, periodiccnt - 1); |
1862 | upheap (periodics, periodiccnt - 1); |
1380 | |
1863 | |
1381 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1864 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1382 | } |
1865 | } |
1383 | |
1866 | |
1384 | void |
1867 | void noinline |
1385 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1868 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1386 | { |
1869 | { |
1387 | ev_clear_pending (EV_A_ (W)w); |
1870 | clear_pending (EV_A_ (W)w); |
1388 | if (!ev_is_active (w)) |
1871 | if (expect_false (!ev_is_active (w))) |
1389 | return; |
1872 | return; |
1390 | |
1873 | |
1391 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1874 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1392 | |
1875 | |
1393 | if (((W)w)->active < periodiccnt--) |
1876 | { |
|
|
1877 | int active = ((W)w)->active; |
|
|
1878 | |
|
|
1879 | if (expect_true (--active < --periodiccnt)) |
1394 | { |
1880 | { |
1395 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1881 | periodics [active] = periodics [periodiccnt]; |
1396 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1882 | adjustheap (periodics, periodiccnt, active); |
1397 | } |
1883 | } |
|
|
1884 | } |
1398 | |
1885 | |
1399 | ev_stop (EV_A_ (W)w); |
1886 | ev_stop (EV_A_ (W)w); |
1400 | } |
1887 | } |
1401 | |
1888 | |
1402 | void |
1889 | void noinline |
1403 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
1890 | ev_periodic_again (EV_P_ ev_periodic *w) |
1404 | { |
1891 | { |
1405 | /* TODO: use adjustheap and recalculation */ |
1892 | /* TODO: use adjustheap and recalculation */ |
1406 | ev_periodic_stop (EV_A_ w); |
1893 | ev_periodic_stop (EV_A_ w); |
1407 | ev_periodic_start (EV_A_ w); |
1894 | ev_periodic_start (EV_A_ w); |
1408 | } |
1895 | } |
1409 | |
1896 | #endif |
1410 | void |
|
|
1411 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1412 | { |
|
|
1413 | if (ev_is_active (w)) |
|
|
1414 | return; |
|
|
1415 | |
|
|
1416 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1417 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1418 | idles [idlecnt - 1] = w; |
|
|
1419 | } |
|
|
1420 | |
|
|
1421 | void |
|
|
1422 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1423 | { |
|
|
1424 | ev_clear_pending (EV_A_ (W)w); |
|
|
1425 | if (ev_is_active (w)) |
|
|
1426 | return; |
|
|
1427 | |
|
|
1428 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1429 | ev_stop (EV_A_ (W)w); |
|
|
1430 | } |
|
|
1431 | |
|
|
1432 | void |
|
|
1433 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1434 | { |
|
|
1435 | if (ev_is_active (w)) |
|
|
1436 | return; |
|
|
1437 | |
|
|
1438 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1439 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1440 | prepares [preparecnt - 1] = w; |
|
|
1441 | } |
|
|
1442 | |
|
|
1443 | void |
|
|
1444 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1445 | { |
|
|
1446 | ev_clear_pending (EV_A_ (W)w); |
|
|
1447 | if (ev_is_active (w)) |
|
|
1448 | return; |
|
|
1449 | |
|
|
1450 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1451 | ev_stop (EV_A_ (W)w); |
|
|
1452 | } |
|
|
1453 | |
|
|
1454 | void |
|
|
1455 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1456 | { |
|
|
1457 | if (ev_is_active (w)) |
|
|
1458 | return; |
|
|
1459 | |
|
|
1460 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1461 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1462 | checks [checkcnt - 1] = w; |
|
|
1463 | } |
|
|
1464 | |
|
|
1465 | void |
|
|
1466 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1467 | { |
|
|
1468 | ev_clear_pending (EV_A_ (W)w); |
|
|
1469 | if (ev_is_active (w)) |
|
|
1470 | return; |
|
|
1471 | |
|
|
1472 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1473 | ev_stop (EV_A_ (W)w); |
|
|
1474 | } |
|
|
1475 | |
1897 | |
1476 | #ifndef SA_RESTART |
1898 | #ifndef SA_RESTART |
1477 | # define SA_RESTART 0 |
1899 | # define SA_RESTART 0 |
1478 | #endif |
1900 | #endif |
1479 | |
1901 | |
1480 | void |
1902 | void noinline |
1481 | ev_signal_start (EV_P_ struct ev_signal *w) |
1903 | ev_signal_start (EV_P_ ev_signal *w) |
1482 | { |
1904 | { |
1483 | #if EV_MULTIPLICITY |
1905 | #if EV_MULTIPLICITY |
1484 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1906 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1485 | #endif |
1907 | #endif |
1486 | if (ev_is_active (w)) |
1908 | if (expect_false (ev_is_active (w))) |
1487 | return; |
1909 | return; |
1488 | |
1910 | |
1489 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1911 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1490 | |
1912 | |
|
|
1913 | evpipe_init (EV_A); |
|
|
1914 | |
|
|
1915 | { |
|
|
1916 | #ifndef _WIN32 |
|
|
1917 | sigset_t full, prev; |
|
|
1918 | sigfillset (&full); |
|
|
1919 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1920 | #endif |
|
|
1921 | |
|
|
1922 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1923 | |
|
|
1924 | #ifndef _WIN32 |
|
|
1925 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1926 | #endif |
|
|
1927 | } |
|
|
1928 | |
1491 | ev_start (EV_A_ (W)w, 1); |
1929 | ev_start (EV_A_ (W)w, 1); |
1492 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1493 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1930 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1494 | |
1931 | |
1495 | if (!((WL)w)->next) |
1932 | if (!((WL)w)->next) |
1496 | { |
1933 | { |
1497 | #if WIN32 |
1934 | #if _WIN32 |
1498 | signal (w->signum, sighandler); |
1935 | signal (w->signum, sighandler); |
1499 | #else |
1936 | #else |
1500 | struct sigaction sa; |
1937 | struct sigaction sa; |
1501 | sa.sa_handler = sighandler; |
1938 | sa.sa_handler = sighandler; |
1502 | sigfillset (&sa.sa_mask); |
1939 | sigfillset (&sa.sa_mask); |
… | |
… | |
1504 | sigaction (w->signum, &sa, 0); |
1941 | sigaction (w->signum, &sa, 0); |
1505 | #endif |
1942 | #endif |
1506 | } |
1943 | } |
1507 | } |
1944 | } |
1508 | |
1945 | |
1509 | void |
1946 | void noinline |
1510 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1947 | ev_signal_stop (EV_P_ ev_signal *w) |
1511 | { |
1948 | { |
1512 | ev_clear_pending (EV_A_ (W)w); |
1949 | clear_pending (EV_A_ (W)w); |
1513 | if (!ev_is_active (w)) |
1950 | if (expect_false (!ev_is_active (w))) |
1514 | return; |
1951 | return; |
1515 | |
1952 | |
1516 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1953 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1517 | ev_stop (EV_A_ (W)w); |
1954 | ev_stop (EV_A_ (W)w); |
1518 | |
1955 | |
1519 | if (!signals [w->signum - 1].head) |
1956 | if (!signals [w->signum - 1].head) |
1520 | signal (w->signum, SIG_DFL); |
1957 | signal (w->signum, SIG_DFL); |
1521 | } |
1958 | } |
1522 | |
1959 | |
1523 | void |
1960 | void |
1524 | ev_child_start (EV_P_ struct ev_child *w) |
1961 | ev_child_start (EV_P_ ev_child *w) |
1525 | { |
1962 | { |
1526 | #if EV_MULTIPLICITY |
1963 | #if EV_MULTIPLICITY |
1527 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
1964 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1528 | #endif |
1965 | #endif |
1529 | if (ev_is_active (w)) |
1966 | if (expect_false (ev_is_active (w))) |
1530 | return; |
1967 | return; |
1531 | |
1968 | |
1532 | ev_start (EV_A_ (W)w, 1); |
1969 | ev_start (EV_A_ (W)w, 1); |
1533 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1970 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1534 | } |
1971 | } |
1535 | |
1972 | |
1536 | void |
1973 | void |
1537 | ev_child_stop (EV_P_ struct ev_child *w) |
1974 | ev_child_stop (EV_P_ ev_child *w) |
1538 | { |
1975 | { |
1539 | ev_clear_pending (EV_A_ (W)w); |
1976 | clear_pending (EV_A_ (W)w); |
1540 | if (ev_is_active (w)) |
1977 | if (expect_false (!ev_is_active (w))) |
1541 | return; |
1978 | return; |
1542 | |
1979 | |
1543 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1980 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1544 | ev_stop (EV_A_ (W)w); |
1981 | ev_stop (EV_A_ (W)w); |
1545 | } |
1982 | } |
1546 | |
1983 | |
|
|
1984 | #if EV_STAT_ENABLE |
|
|
1985 | |
|
|
1986 | # ifdef _WIN32 |
|
|
1987 | # undef lstat |
|
|
1988 | # define lstat(a,b) _stati64 (a,b) |
|
|
1989 | # endif |
|
|
1990 | |
|
|
1991 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1992 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1993 | |
|
|
1994 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1995 | |
|
|
1996 | #if EV_USE_INOTIFY |
|
|
1997 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1998 | |
|
|
1999 | static void noinline |
|
|
2000 | infy_add (EV_P_ ev_stat *w) |
|
|
2001 | { |
|
|
2002 | 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); |
|
|
2003 | |
|
|
2004 | if (w->wd < 0) |
|
|
2005 | { |
|
|
2006 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2007 | |
|
|
2008 | /* monitor some parent directory for speedup hints */ |
|
|
2009 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2010 | { |
|
|
2011 | char path [4096]; |
|
|
2012 | strcpy (path, w->path); |
|
|
2013 | |
|
|
2014 | do |
|
|
2015 | { |
|
|
2016 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2017 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2018 | |
|
|
2019 | char *pend = strrchr (path, '/'); |
|
|
2020 | |
|
|
2021 | if (!pend) |
|
|
2022 | break; /* whoops, no '/', complain to your admin */ |
|
|
2023 | |
|
|
2024 | *pend = 0; |
|
|
2025 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2026 | } |
|
|
2027 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2028 | } |
|
|
2029 | } |
|
|
2030 | else |
|
|
2031 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2032 | |
|
|
2033 | if (w->wd >= 0) |
|
|
2034 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2035 | } |
|
|
2036 | |
|
|
2037 | static void noinline |
|
|
2038 | infy_del (EV_P_ ev_stat *w) |
|
|
2039 | { |
|
|
2040 | int slot; |
|
|
2041 | int wd = w->wd; |
|
|
2042 | |
|
|
2043 | if (wd < 0) |
|
|
2044 | return; |
|
|
2045 | |
|
|
2046 | w->wd = -2; |
|
|
2047 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2048 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2049 | |
|
|
2050 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2051 | inotify_rm_watch (fs_fd, wd); |
|
|
2052 | } |
|
|
2053 | |
|
|
2054 | static void noinline |
|
|
2055 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2056 | { |
|
|
2057 | if (slot < 0) |
|
|
2058 | /* overflow, need to check for all hahs slots */ |
|
|
2059 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2060 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2061 | else |
|
|
2062 | { |
|
|
2063 | WL w_; |
|
|
2064 | |
|
|
2065 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2066 | { |
|
|
2067 | ev_stat *w = (ev_stat *)w_; |
|
|
2068 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2069 | |
|
|
2070 | if (w->wd == wd || wd == -1) |
|
|
2071 | { |
|
|
2072 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2073 | { |
|
|
2074 | w->wd = -1; |
|
|
2075 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2076 | } |
|
|
2077 | |
|
|
2078 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2079 | } |
|
|
2080 | } |
|
|
2081 | } |
|
|
2082 | } |
|
|
2083 | |
|
|
2084 | static void |
|
|
2085 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2086 | { |
|
|
2087 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2088 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2089 | int ofs; |
|
|
2090 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2091 | |
|
|
2092 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2093 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2094 | } |
|
|
2095 | |
|
|
2096 | void inline_size |
|
|
2097 | infy_init (EV_P) |
|
|
2098 | { |
|
|
2099 | if (fs_fd != -2) |
|
|
2100 | return; |
|
|
2101 | |
|
|
2102 | fs_fd = inotify_init (); |
|
|
2103 | |
|
|
2104 | if (fs_fd >= 0) |
|
|
2105 | { |
|
|
2106 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2107 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2108 | ev_io_start (EV_A_ &fs_w); |
|
|
2109 | } |
|
|
2110 | } |
|
|
2111 | |
|
|
2112 | void inline_size |
|
|
2113 | infy_fork (EV_P) |
|
|
2114 | { |
|
|
2115 | int slot; |
|
|
2116 | |
|
|
2117 | if (fs_fd < 0) |
|
|
2118 | return; |
|
|
2119 | |
|
|
2120 | close (fs_fd); |
|
|
2121 | fs_fd = inotify_init (); |
|
|
2122 | |
|
|
2123 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2124 | { |
|
|
2125 | WL w_ = fs_hash [slot].head; |
|
|
2126 | fs_hash [slot].head = 0; |
|
|
2127 | |
|
|
2128 | while (w_) |
|
|
2129 | { |
|
|
2130 | ev_stat *w = (ev_stat *)w_; |
|
|
2131 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2132 | |
|
|
2133 | w->wd = -1; |
|
|
2134 | |
|
|
2135 | if (fs_fd >= 0) |
|
|
2136 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2137 | else |
|
|
2138 | ev_timer_start (EV_A_ &w->timer); |
|
|
2139 | } |
|
|
2140 | |
|
|
2141 | } |
|
|
2142 | } |
|
|
2143 | |
|
|
2144 | #endif |
|
|
2145 | |
|
|
2146 | void |
|
|
2147 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2148 | { |
|
|
2149 | if (lstat (w->path, &w->attr) < 0) |
|
|
2150 | w->attr.st_nlink = 0; |
|
|
2151 | else if (!w->attr.st_nlink) |
|
|
2152 | w->attr.st_nlink = 1; |
|
|
2153 | } |
|
|
2154 | |
|
|
2155 | static void noinline |
|
|
2156 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2157 | { |
|
|
2158 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2159 | |
|
|
2160 | /* we copy this here each the time so that */ |
|
|
2161 | /* prev has the old value when the callback gets invoked */ |
|
|
2162 | w->prev = w->attr; |
|
|
2163 | ev_stat_stat (EV_A_ w); |
|
|
2164 | |
|
|
2165 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2166 | if ( |
|
|
2167 | w->prev.st_dev != w->attr.st_dev |
|
|
2168 | || w->prev.st_ino != w->attr.st_ino |
|
|
2169 | || w->prev.st_mode != w->attr.st_mode |
|
|
2170 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2171 | || w->prev.st_uid != w->attr.st_uid |
|
|
2172 | || w->prev.st_gid != w->attr.st_gid |
|
|
2173 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2174 | || w->prev.st_size != w->attr.st_size |
|
|
2175 | || w->prev.st_atime != w->attr.st_atime |
|
|
2176 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2177 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2178 | ) { |
|
|
2179 | #if EV_USE_INOTIFY |
|
|
2180 | infy_del (EV_A_ w); |
|
|
2181 | infy_add (EV_A_ w); |
|
|
2182 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2183 | #endif |
|
|
2184 | |
|
|
2185 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2186 | } |
|
|
2187 | } |
|
|
2188 | |
|
|
2189 | void |
|
|
2190 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2191 | { |
|
|
2192 | if (expect_false (ev_is_active (w))) |
|
|
2193 | return; |
|
|
2194 | |
|
|
2195 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2196 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2197 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2198 | |
|
|
2199 | ev_stat_stat (EV_A_ w); |
|
|
2200 | |
|
|
2201 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2202 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2203 | |
|
|
2204 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2205 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2206 | |
|
|
2207 | #if EV_USE_INOTIFY |
|
|
2208 | infy_init (EV_A); |
|
|
2209 | |
|
|
2210 | if (fs_fd >= 0) |
|
|
2211 | infy_add (EV_A_ w); |
|
|
2212 | else |
|
|
2213 | #endif |
|
|
2214 | ev_timer_start (EV_A_ &w->timer); |
|
|
2215 | |
|
|
2216 | ev_start (EV_A_ (W)w, 1); |
|
|
2217 | } |
|
|
2218 | |
|
|
2219 | void |
|
|
2220 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2221 | { |
|
|
2222 | clear_pending (EV_A_ (W)w); |
|
|
2223 | if (expect_false (!ev_is_active (w))) |
|
|
2224 | return; |
|
|
2225 | |
|
|
2226 | #if EV_USE_INOTIFY |
|
|
2227 | infy_del (EV_A_ w); |
|
|
2228 | #endif |
|
|
2229 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2230 | |
|
|
2231 | ev_stop (EV_A_ (W)w); |
|
|
2232 | } |
|
|
2233 | #endif |
|
|
2234 | |
|
|
2235 | #if EV_IDLE_ENABLE |
|
|
2236 | void |
|
|
2237 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2238 | { |
|
|
2239 | if (expect_false (ev_is_active (w))) |
|
|
2240 | return; |
|
|
2241 | |
|
|
2242 | pri_adjust (EV_A_ (W)w); |
|
|
2243 | |
|
|
2244 | { |
|
|
2245 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2246 | |
|
|
2247 | ++idleall; |
|
|
2248 | ev_start (EV_A_ (W)w, active); |
|
|
2249 | |
|
|
2250 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2251 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2252 | } |
|
|
2253 | } |
|
|
2254 | |
|
|
2255 | void |
|
|
2256 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2257 | { |
|
|
2258 | clear_pending (EV_A_ (W)w); |
|
|
2259 | if (expect_false (!ev_is_active (w))) |
|
|
2260 | return; |
|
|
2261 | |
|
|
2262 | { |
|
|
2263 | int active = ((W)w)->active; |
|
|
2264 | |
|
|
2265 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2266 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2267 | |
|
|
2268 | ev_stop (EV_A_ (W)w); |
|
|
2269 | --idleall; |
|
|
2270 | } |
|
|
2271 | } |
|
|
2272 | #endif |
|
|
2273 | |
|
|
2274 | void |
|
|
2275 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2276 | { |
|
|
2277 | if (expect_false (ev_is_active (w))) |
|
|
2278 | return; |
|
|
2279 | |
|
|
2280 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2281 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2282 | prepares [preparecnt - 1] = w; |
|
|
2283 | } |
|
|
2284 | |
|
|
2285 | void |
|
|
2286 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2287 | { |
|
|
2288 | clear_pending (EV_A_ (W)w); |
|
|
2289 | if (expect_false (!ev_is_active (w))) |
|
|
2290 | return; |
|
|
2291 | |
|
|
2292 | { |
|
|
2293 | int active = ((W)w)->active; |
|
|
2294 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2295 | ((W)prepares [active - 1])->active = active; |
|
|
2296 | } |
|
|
2297 | |
|
|
2298 | ev_stop (EV_A_ (W)w); |
|
|
2299 | } |
|
|
2300 | |
|
|
2301 | void |
|
|
2302 | ev_check_start (EV_P_ ev_check *w) |
|
|
2303 | { |
|
|
2304 | if (expect_false (ev_is_active (w))) |
|
|
2305 | return; |
|
|
2306 | |
|
|
2307 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2308 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2309 | checks [checkcnt - 1] = w; |
|
|
2310 | } |
|
|
2311 | |
|
|
2312 | void |
|
|
2313 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2314 | { |
|
|
2315 | clear_pending (EV_A_ (W)w); |
|
|
2316 | if (expect_false (!ev_is_active (w))) |
|
|
2317 | return; |
|
|
2318 | |
|
|
2319 | { |
|
|
2320 | int active = ((W)w)->active; |
|
|
2321 | checks [active - 1] = checks [--checkcnt]; |
|
|
2322 | ((W)checks [active - 1])->active = active; |
|
|
2323 | } |
|
|
2324 | |
|
|
2325 | ev_stop (EV_A_ (W)w); |
|
|
2326 | } |
|
|
2327 | |
|
|
2328 | #if EV_EMBED_ENABLE |
|
|
2329 | void noinline |
|
|
2330 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2331 | { |
|
|
2332 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2333 | } |
|
|
2334 | |
|
|
2335 | static void |
|
|
2336 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2337 | { |
|
|
2338 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2339 | |
|
|
2340 | if (ev_cb (w)) |
|
|
2341 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2342 | else |
|
|
2343 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2344 | } |
|
|
2345 | |
|
|
2346 | static void |
|
|
2347 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2348 | { |
|
|
2349 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2350 | |
|
|
2351 | { |
|
|
2352 | struct ev_loop *loop = w->other; |
|
|
2353 | |
|
|
2354 | while (fdchangecnt) |
|
|
2355 | { |
|
|
2356 | fd_reify (EV_A); |
|
|
2357 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2358 | } |
|
|
2359 | } |
|
|
2360 | } |
|
|
2361 | |
|
|
2362 | #if 0 |
|
|
2363 | static void |
|
|
2364 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2365 | { |
|
|
2366 | ev_idle_stop (EV_A_ idle); |
|
|
2367 | } |
|
|
2368 | #endif |
|
|
2369 | |
|
|
2370 | void |
|
|
2371 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2372 | { |
|
|
2373 | if (expect_false (ev_is_active (w))) |
|
|
2374 | return; |
|
|
2375 | |
|
|
2376 | { |
|
|
2377 | struct ev_loop *loop = w->other; |
|
|
2378 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2379 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2380 | } |
|
|
2381 | |
|
|
2382 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2383 | ev_io_start (EV_A_ &w->io); |
|
|
2384 | |
|
|
2385 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2386 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2387 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2388 | |
|
|
2389 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2390 | |
|
|
2391 | ev_start (EV_A_ (W)w, 1); |
|
|
2392 | } |
|
|
2393 | |
|
|
2394 | void |
|
|
2395 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2396 | { |
|
|
2397 | clear_pending (EV_A_ (W)w); |
|
|
2398 | if (expect_false (!ev_is_active (w))) |
|
|
2399 | return; |
|
|
2400 | |
|
|
2401 | ev_io_stop (EV_A_ &w->io); |
|
|
2402 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2403 | |
|
|
2404 | ev_stop (EV_A_ (W)w); |
|
|
2405 | } |
|
|
2406 | #endif |
|
|
2407 | |
|
|
2408 | #if EV_FORK_ENABLE |
|
|
2409 | void |
|
|
2410 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2411 | { |
|
|
2412 | if (expect_false (ev_is_active (w))) |
|
|
2413 | return; |
|
|
2414 | |
|
|
2415 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2416 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2417 | forks [forkcnt - 1] = w; |
|
|
2418 | } |
|
|
2419 | |
|
|
2420 | void |
|
|
2421 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2422 | { |
|
|
2423 | clear_pending (EV_A_ (W)w); |
|
|
2424 | if (expect_false (!ev_is_active (w))) |
|
|
2425 | return; |
|
|
2426 | |
|
|
2427 | { |
|
|
2428 | int active = ((W)w)->active; |
|
|
2429 | forks [active - 1] = forks [--forkcnt]; |
|
|
2430 | ((W)forks [active - 1])->active = active; |
|
|
2431 | } |
|
|
2432 | |
|
|
2433 | ev_stop (EV_A_ (W)w); |
|
|
2434 | } |
|
|
2435 | #endif |
|
|
2436 | |
|
|
2437 | #if EV_ASYNC_ENABLE |
|
|
2438 | void |
|
|
2439 | ev_async_start (EV_P_ ev_async *w) |
|
|
2440 | { |
|
|
2441 | if (expect_false (ev_is_active (w))) |
|
|
2442 | return; |
|
|
2443 | |
|
|
2444 | evpipe_init (EV_A); |
|
|
2445 | |
|
|
2446 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2447 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2448 | asyncs [asynccnt - 1] = w; |
|
|
2449 | } |
|
|
2450 | |
|
|
2451 | void |
|
|
2452 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2453 | { |
|
|
2454 | clear_pending (EV_A_ (W)w); |
|
|
2455 | if (expect_false (!ev_is_active (w))) |
|
|
2456 | return; |
|
|
2457 | |
|
|
2458 | { |
|
|
2459 | int active = ((W)w)->active; |
|
|
2460 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2461 | ((W)asyncs [active - 1])->active = active; |
|
|
2462 | } |
|
|
2463 | |
|
|
2464 | ev_stop (EV_A_ (W)w); |
|
|
2465 | } |
|
|
2466 | |
|
|
2467 | void |
|
|
2468 | ev_async_send (EV_P_ ev_async *w) |
|
|
2469 | { |
|
|
2470 | w->sent = 1; |
|
|
2471 | evpipe_write (EV_A_ &gotasync); |
|
|
2472 | } |
|
|
2473 | #endif |
|
|
2474 | |
1547 | /*****************************************************************************/ |
2475 | /*****************************************************************************/ |
1548 | |
2476 | |
1549 | struct ev_once |
2477 | struct ev_once |
1550 | { |
2478 | { |
1551 | struct ev_io io; |
2479 | ev_io io; |
1552 | struct ev_timer to; |
2480 | ev_timer to; |
1553 | void (*cb)(int revents, void *arg); |
2481 | void (*cb)(int revents, void *arg); |
1554 | void *arg; |
2482 | void *arg; |
1555 | }; |
2483 | }; |
1556 | |
2484 | |
1557 | static void |
2485 | static void |
… | |
… | |
1566 | |
2494 | |
1567 | cb (revents, arg); |
2495 | cb (revents, arg); |
1568 | } |
2496 | } |
1569 | |
2497 | |
1570 | static void |
2498 | static void |
1571 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2499 | once_cb_io (EV_P_ ev_io *w, int revents) |
1572 | { |
2500 | { |
1573 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2501 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1574 | } |
2502 | } |
1575 | |
2503 | |
1576 | static void |
2504 | static void |
1577 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2505 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1578 | { |
2506 | { |
1579 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2507 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1580 | } |
2508 | } |
1581 | |
2509 | |
1582 | void |
2510 | void |
1583 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2511 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1584 | { |
2512 | { |
1585 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2513 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1586 | |
2514 | |
1587 | if (!once) |
2515 | if (expect_false (!once)) |
|
|
2516 | { |
1588 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2517 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1589 | else |
2518 | return; |
1590 | { |
2519 | } |
|
|
2520 | |
1591 | once->cb = cb; |
2521 | once->cb = cb; |
1592 | once->arg = arg; |
2522 | once->arg = arg; |
1593 | |
2523 | |
1594 | ev_init (&once->io, once_cb_io); |
2524 | ev_init (&once->io, once_cb_io); |
1595 | if (fd >= 0) |
2525 | if (fd >= 0) |
1596 | { |
2526 | { |
1597 | ev_io_set (&once->io, fd, events); |
2527 | ev_io_set (&once->io, fd, events); |
1598 | ev_io_start (EV_A_ &once->io); |
2528 | ev_io_start (EV_A_ &once->io); |
1599 | } |
2529 | } |
1600 | |
2530 | |
1601 | ev_init (&once->to, once_cb_to); |
2531 | ev_init (&once->to, once_cb_to); |
1602 | if (timeout >= 0.) |
2532 | if (timeout >= 0.) |
1603 | { |
2533 | { |
1604 | ev_timer_set (&once->to, timeout, 0.); |
2534 | ev_timer_set (&once->to, timeout, 0.); |
1605 | ev_timer_start (EV_A_ &once->to); |
2535 | ev_timer_start (EV_A_ &once->to); |
1606 | } |
|
|
1607 | } |
2536 | } |
1608 | } |
2537 | } |
|
|
2538 | |
|
|
2539 | #if EV_MULTIPLICITY |
|
|
2540 | #include "ev_wrap.h" |
|
|
2541 | #endif |
1609 | |
2542 | |
1610 | #ifdef __cplusplus |
2543 | #ifdef __cplusplus |
1611 | } |
2544 | } |
1612 | #endif |
2545 | #endif |
1613 | |
2546 | |