1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
35 | |
43 | |
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44 | /* this big block deduces configuration from config.h */ |
36 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
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46 | # ifdef EV_CONFIG_H |
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47 | # include EV_CONFIG_H |
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48 | # else |
37 | # include "config.h" |
49 | # include "config.h" |
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50 | # endif |
38 | |
51 | |
39 | # if HAVE_CLOCK_GETTIME |
52 | # if HAVE_CLOCK_GETTIME |
40 | # ifndef EV_USE_MONOTONIC |
53 | # ifndef EV_USE_MONOTONIC |
41 | # define EV_USE_MONOTONIC 1 |
54 | # define EV_USE_MONOTONIC 1 |
42 | # endif |
55 | # endif |
43 | # ifndef EV_USE_REALTIME |
56 | # ifndef EV_USE_REALTIME |
44 | # define EV_USE_REALTIME 1 |
57 | # define EV_USE_REALTIME 1 |
45 | # endif |
58 | # endif |
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59 | # else |
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60 | # ifndef EV_USE_MONOTONIC |
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61 | # define EV_USE_MONOTONIC 0 |
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62 | # endif |
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63 | # ifndef EV_USE_REALTIME |
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64 | # define EV_USE_REALTIME 0 |
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65 | # endif |
46 | # endif |
66 | # endif |
47 | |
67 | |
48 | # if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) |
68 | # ifndef EV_USE_NANOSLEEP |
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|
69 | # if HAVE_NANOSLEEP |
49 | # define EV_USE_SELECT 1 |
70 | # define EV_USE_NANOSLEEP 1 |
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71 | # else |
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72 | # define EV_USE_NANOSLEEP 0 |
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73 | # endif |
50 | # endif |
74 | # endif |
51 | |
75 | |
52 | # if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) |
76 | # ifndef EV_USE_SELECT |
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77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
53 | # define EV_USE_POLL 1 |
78 | # define EV_USE_SELECT 1 |
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79 | # else |
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80 | # define EV_USE_SELECT 0 |
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81 | # endif |
54 | # endif |
82 | # endif |
55 | |
83 | |
56 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) |
84 | # ifndef EV_USE_POLL |
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85 | # if HAVE_POLL && HAVE_POLL_H |
57 | # define EV_USE_EPOLL 1 |
86 | # define EV_USE_POLL 1 |
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87 | # else |
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88 | # define EV_USE_POLL 0 |
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89 | # endif |
58 | # endif |
90 | # endif |
59 | |
91 | |
60 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) |
92 | # ifndef EV_USE_EPOLL |
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93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
61 | # define EV_USE_KQUEUE 1 |
94 | # define EV_USE_EPOLL 1 |
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95 | # else |
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96 | # define EV_USE_EPOLL 0 |
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97 | # endif |
62 | # endif |
98 | # endif |
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99 | |
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100 | # ifndef EV_USE_KQUEUE |
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101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
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102 | # define EV_USE_KQUEUE 1 |
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103 | # else |
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104 | # define EV_USE_KQUEUE 0 |
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105 | # endif |
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106 | # endif |
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107 | |
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108 | # ifndef EV_USE_PORT |
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109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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110 | # define EV_USE_PORT 1 |
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111 | # else |
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112 | # define EV_USE_PORT 0 |
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113 | # endif |
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114 | # endif |
63 | |
115 | |
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116 | # ifndef EV_USE_INOTIFY |
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117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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118 | # define EV_USE_INOTIFY 1 |
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119 | # else |
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120 | # define EV_USE_INOTIFY 0 |
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121 | # endif |
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122 | # endif |
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123 | |
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124 | # ifndef EV_USE_EVENTFD |
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125 | # if HAVE_EVENTFD |
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126 | # define EV_USE_EVENTFD 1 |
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127 | # else |
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128 | # define EV_USE_EVENTFD 0 |
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129 | # endif |
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130 | # endif |
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131 | |
64 | #endif |
132 | #endif |
65 | |
133 | |
66 | #include <math.h> |
134 | #include <math.h> |
67 | #include <stdlib.h> |
135 | #include <stdlib.h> |
68 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
75 | #include <sys/types.h> |
143 | #include <sys/types.h> |
76 | #include <time.h> |
144 | #include <time.h> |
77 | |
145 | |
78 | #include <signal.h> |
146 | #include <signal.h> |
79 | |
147 | |
80 | #ifndef WIN32 |
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81 | # include <unistd.h> |
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82 | # include <sys/time.h> |
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83 | # include <sys/wait.h> |
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84 | #endif |
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85 | /**/ |
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86 | |
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87 | #ifndef EV_USE_MONOTONIC |
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88 | # define EV_USE_MONOTONIC 1 |
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89 | #endif |
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90 | |
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91 | #ifndef EV_USE_SELECT |
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92 | # define EV_USE_SELECT 1 |
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93 | #endif |
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94 | |
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95 | #ifndef EV_USE_POLL |
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96 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
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97 | #endif |
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98 | |
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99 | #ifndef EV_USE_EPOLL |
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100 | # define EV_USE_EPOLL 0 |
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101 | #endif |
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102 | |
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103 | #ifndef EV_USE_KQUEUE |
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104 | # define EV_USE_KQUEUE 0 |
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105 | #endif |
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106 | |
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107 | #ifndef EV_USE_WIN32 |
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108 | # ifdef WIN32 |
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109 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
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110 | # undef EV_USE_SELECT |
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111 | # define EV_USE_SELECT 1 |
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112 | # else |
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113 | # define EV_USE_WIN32 0 |
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114 | # endif |
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115 | #endif |
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116 | |
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117 | #ifndef EV_USE_REALTIME |
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118 | # define EV_USE_REALTIME 1 |
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119 | #endif |
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120 | |
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121 | /**/ |
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122 | |
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123 | #ifndef CLOCK_MONOTONIC |
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124 | # undef EV_USE_MONOTONIC |
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125 | # define EV_USE_MONOTONIC 0 |
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126 | #endif |
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127 | |
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128 | #ifndef CLOCK_REALTIME |
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129 | # undef EV_USE_REALTIME |
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130 | # define EV_USE_REALTIME 0 |
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131 | #endif |
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132 | |
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133 | /**/ |
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134 | |
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135 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
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136 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
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137 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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138 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
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139 | |
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140 | #ifdef EV_H |
148 | #ifdef EV_H |
141 | # include EV_H |
149 | # include EV_H |
142 | #else |
150 | #else |
143 | # include "ev.h" |
151 | # include "ev.h" |
144 | #endif |
152 | #endif |
145 | |
153 | |
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154 | #ifndef _WIN32 |
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155 | # include <sys/time.h> |
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156 | # include <sys/wait.h> |
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157 | # include <unistd.h> |
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158 | #else |
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159 | # define WIN32_LEAN_AND_MEAN |
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160 | # include <windows.h> |
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161 | # ifndef EV_SELECT_IS_WINSOCKET |
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162 | # define EV_SELECT_IS_WINSOCKET 1 |
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163 | # endif |
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164 | #endif |
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165 | |
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166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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167 | |
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168 | #ifndef EV_USE_MONOTONIC |
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169 | # define EV_USE_MONOTONIC 0 |
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170 | #endif |
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171 | |
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172 | #ifndef EV_USE_REALTIME |
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173 | # define EV_USE_REALTIME 0 |
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174 | #endif |
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175 | |
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176 | #ifndef EV_USE_NANOSLEEP |
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177 | # define EV_USE_NANOSLEEP 0 |
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178 | #endif |
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179 | |
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180 | #ifndef EV_USE_SELECT |
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181 | # define EV_USE_SELECT 1 |
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182 | #endif |
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183 | |
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184 | #ifndef EV_USE_POLL |
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185 | # ifdef _WIN32 |
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186 | # define EV_USE_POLL 0 |
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187 | # else |
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188 | # define EV_USE_POLL 1 |
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189 | # endif |
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190 | #endif |
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191 | |
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192 | #ifndef EV_USE_EPOLL |
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193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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194 | # define EV_USE_EPOLL 1 |
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195 | # else |
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196 | # define EV_USE_EPOLL 0 |
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197 | # endif |
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198 | #endif |
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199 | |
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200 | #ifndef EV_USE_KQUEUE |
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201 | # define EV_USE_KQUEUE 0 |
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202 | #endif |
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203 | |
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204 | #ifndef EV_USE_PORT |
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205 | # define EV_USE_PORT 0 |
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206 | #endif |
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207 | |
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208 | #ifndef EV_USE_INOTIFY |
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209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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210 | # define EV_USE_INOTIFY 1 |
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211 | # else |
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212 | # define EV_USE_INOTIFY 0 |
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213 | # endif |
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214 | #endif |
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215 | |
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216 | #ifndef EV_PID_HASHSIZE |
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217 | # if EV_MINIMAL |
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218 | # define EV_PID_HASHSIZE 1 |
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219 | # else |
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220 | # define EV_PID_HASHSIZE 16 |
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221 | # endif |
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222 | #endif |
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223 | |
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224 | #ifndef EV_INOTIFY_HASHSIZE |
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225 | # if EV_MINIMAL |
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226 | # define EV_INOTIFY_HASHSIZE 1 |
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227 | # else |
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228 | # define EV_INOTIFY_HASHSIZE 16 |
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229 | # endif |
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230 | #endif |
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231 | |
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232 | #ifndef EV_USE_EVENTFD |
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233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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234 | # define EV_USE_EVENTFD 1 |
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235 | # else |
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236 | # define EV_USE_EVENTFD 0 |
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237 | # endif |
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238 | #endif |
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239 | |
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240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
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241 | |
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242 | #ifndef CLOCK_MONOTONIC |
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243 | # undef EV_USE_MONOTONIC |
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244 | # define EV_USE_MONOTONIC 0 |
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245 | #endif |
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246 | |
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247 | #ifndef CLOCK_REALTIME |
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248 | # undef EV_USE_REALTIME |
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249 | # define EV_USE_REALTIME 0 |
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250 | #endif |
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251 | |
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252 | #if !EV_STAT_ENABLE |
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253 | # undef EV_USE_INOTIFY |
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254 | # define EV_USE_INOTIFY 0 |
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255 | #endif |
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256 | |
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257 | #if !EV_USE_NANOSLEEP |
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258 | # ifndef _WIN32 |
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259 | # include <sys/select.h> |
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260 | # endif |
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261 | #endif |
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262 | |
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263 | #if EV_USE_INOTIFY |
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264 | # include <sys/inotify.h> |
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265 | #endif |
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266 | |
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267 | #if EV_SELECT_IS_WINSOCKET |
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268 | # include <winsock.h> |
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269 | #endif |
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270 | |
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271 | #if EV_USE_EVENTFD |
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272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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273 | # include <stdint.h> |
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274 | # ifdef __cplusplus |
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275 | extern "C" { |
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276 | # endif |
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277 | int eventfd (unsigned int initval, int flags); |
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278 | # ifdef __cplusplus |
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279 | } |
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280 | # endif |
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281 | #endif |
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282 | |
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283 | /**/ |
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284 | |
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285 | /* |
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286 | * This is used to avoid floating point rounding problems. |
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287 | * It is added to ev_rt_now when scheduling periodics |
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288 | * to ensure progress, time-wise, even when rounding |
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289 | * errors are against us. |
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290 | * This value is good at least till the year 4000. |
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291 | * Better solutions welcome. |
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292 | */ |
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293 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
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294 | |
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295 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
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296 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
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297 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
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298 | |
146 | #if __GNUC__ >= 3 |
299 | #if __GNUC__ >= 4 |
147 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
148 | # define inline inline |
301 | # define noinline __attribute__ ((noinline)) |
149 | #else |
302 | #else |
150 | # define expect(expr,value) (expr) |
303 | # define expect(expr,value) (expr) |
151 | # define inline static |
304 | # define noinline |
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305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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306 | # define inline |
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307 | # endif |
152 | #endif |
308 | #endif |
153 | |
309 | |
154 | #define expect_false(expr) expect ((expr) != 0, 0) |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
155 | #define expect_true(expr) expect ((expr) != 0, 1) |
311 | #define expect_true(expr) expect ((expr) != 0, 1) |
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312 | #define inline_size static inline |
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313 | |
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314 | #if EV_MINIMAL |
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315 | # define inline_speed static noinline |
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316 | #else |
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317 | # define inline_speed static inline |
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318 | #endif |
156 | |
319 | |
157 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
158 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
159 | |
322 | |
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323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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325 | |
160 | typedef struct ev_watcher *W; |
326 | typedef ev_watcher *W; |
161 | typedef struct ev_watcher_list *WL; |
327 | typedef ev_watcher_list *WL; |
162 | typedef struct ev_watcher_time *WT; |
328 | typedef ev_watcher_time *WT; |
163 | |
329 | |
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330 | #define ev_active(w) ((W)(w))->active |
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331 | #define ev_at(w) ((WT)(w))->at |
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332 | |
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333 | #if EV_USE_MONOTONIC |
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334 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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335 | /* giving it a reasonably high chance of working on typical architetcures */ |
164 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
336 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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337 | #endif |
165 | |
338 | |
|
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339 | #ifdef _WIN32 |
166 | #include "ev_win32.c" |
340 | # include "ev_win32.c" |
|
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341 | #endif |
167 | |
342 | |
168 | /*****************************************************************************/ |
343 | /*****************************************************************************/ |
169 | |
344 | |
170 | static void (*syserr_cb)(const char *msg); |
345 | static void (*syserr_cb)(const char *msg); |
171 | |
346 | |
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347 | void |
172 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
348 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
173 | { |
349 | { |
174 | syserr_cb = cb; |
350 | syserr_cb = cb; |
175 | } |
351 | } |
176 | |
352 | |
177 | static void |
353 | static void noinline |
178 | syserr (const char *msg) |
354 | syserr (const char *msg) |
179 | { |
355 | { |
180 | if (!msg) |
356 | if (!msg) |
181 | msg = "(libev) system error"; |
357 | msg = "(libev) system error"; |
182 | |
358 | |
… | |
… | |
187 | perror (msg); |
363 | perror (msg); |
188 | abort (); |
364 | abort (); |
189 | } |
365 | } |
190 | } |
366 | } |
191 | |
367 | |
|
|
368 | static void * |
|
|
369 | ev_realloc_emul (void *ptr, long size) |
|
|
370 | { |
|
|
371 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
372 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
373 | * the single unix specification, so work around them here. |
|
|
374 | */ |
|
|
375 | |
|
|
376 | if (size) |
|
|
377 | return realloc (ptr, size); |
|
|
378 | |
|
|
379 | free (ptr); |
|
|
380 | return 0; |
|
|
381 | } |
|
|
382 | |
192 | static void *(*alloc)(void *ptr, long size); |
383 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
193 | |
384 | |
|
|
385 | void |
194 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
386 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
195 | { |
387 | { |
196 | alloc = cb; |
388 | alloc = cb; |
197 | } |
389 | } |
198 | |
390 | |
199 | static void * |
391 | inline_speed void * |
200 | ev_realloc (void *ptr, long size) |
392 | ev_realloc (void *ptr, long size) |
201 | { |
393 | { |
202 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
394 | ptr = alloc (ptr, size); |
203 | |
395 | |
204 | if (!ptr && size) |
396 | if (!ptr && size) |
205 | { |
397 | { |
206 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
398 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
207 | abort (); |
399 | abort (); |
… | |
… | |
218 | typedef struct |
410 | typedef struct |
219 | { |
411 | { |
220 | WL head; |
412 | WL head; |
221 | unsigned char events; |
413 | unsigned char events; |
222 | unsigned char reify; |
414 | unsigned char reify; |
|
|
415 | #if EV_SELECT_IS_WINSOCKET |
|
|
416 | SOCKET handle; |
|
|
417 | #endif |
223 | } ANFD; |
418 | } ANFD; |
224 | |
419 | |
225 | typedef struct |
420 | typedef struct |
226 | { |
421 | { |
227 | W w; |
422 | W w; |
228 | int events; |
423 | int events; |
229 | } ANPENDING; |
424 | } ANPENDING; |
230 | |
425 | |
|
|
426 | #if EV_USE_INOTIFY |
|
|
427 | /* hash table entry per inotify-id */ |
|
|
428 | typedef struct |
|
|
429 | { |
|
|
430 | WL head; |
|
|
431 | } ANFS; |
|
|
432 | #endif |
|
|
433 | |
|
|
434 | /* Heap Entry */ |
|
|
435 | #define EV_HEAP_CACHE_AT 0 |
|
|
436 | #if EV_HEAP_CACHE_AT |
|
|
437 | typedef struct { |
|
|
438 | WT w; |
|
|
439 | ev_tstamp at; |
|
|
440 | } ANHE; |
|
|
441 | |
|
|
442 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
443 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
444 | #define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
445 | #else |
|
|
446 | typedef WT ANHE; |
|
|
447 | |
|
|
448 | #define ANHE_w(he) (he) |
|
|
449 | #define ANHE_at(he) (he)->at |
|
|
450 | #define ANHE_at_set(he) |
|
|
451 | #endif |
|
|
452 | |
231 | #if EV_MULTIPLICITY |
453 | #if EV_MULTIPLICITY |
232 | |
454 | |
233 | struct ev_loop |
455 | struct ev_loop |
234 | { |
456 | { |
235 | ev_tstamp ev_rt_now; |
457 | ev_tstamp ev_rt_now; |
|
|
458 | #define ev_rt_now ((loop)->ev_rt_now) |
236 | #define VAR(name,decl) decl; |
459 | #define VAR(name,decl) decl; |
237 | #include "ev_vars.h" |
460 | #include "ev_vars.h" |
238 | #undef VAR |
461 | #undef VAR |
239 | }; |
462 | }; |
240 | #include "ev_wrap.h" |
463 | #include "ev_wrap.h" |
241 | |
464 | |
242 | struct ev_loop default_loop_struct; |
465 | static struct ev_loop default_loop_struct; |
243 | static struct ev_loop *default_loop; |
466 | struct ev_loop *ev_default_loop_ptr; |
244 | |
467 | |
245 | #else |
468 | #else |
246 | |
469 | |
247 | ev_tstamp ev_rt_now; |
470 | ev_tstamp ev_rt_now; |
248 | #define VAR(name,decl) static decl; |
471 | #define VAR(name,decl) static decl; |
249 | #include "ev_vars.h" |
472 | #include "ev_vars.h" |
250 | #undef VAR |
473 | #undef VAR |
251 | |
474 | |
252 | static int default_loop; |
475 | static int ev_default_loop_ptr; |
253 | |
476 | |
254 | #endif |
477 | #endif |
255 | |
478 | |
256 | /*****************************************************************************/ |
479 | /*****************************************************************************/ |
257 | |
480 | |
… | |
… | |
267 | gettimeofday (&tv, 0); |
490 | gettimeofday (&tv, 0); |
268 | return tv.tv_sec + tv.tv_usec * 1e-6; |
491 | return tv.tv_sec + tv.tv_usec * 1e-6; |
269 | #endif |
492 | #endif |
270 | } |
493 | } |
271 | |
494 | |
272 | inline ev_tstamp |
495 | ev_tstamp inline_size |
273 | get_clock (void) |
496 | get_clock (void) |
274 | { |
497 | { |
275 | #if EV_USE_MONOTONIC |
498 | #if EV_USE_MONOTONIC |
276 | if (expect_true (have_monotonic)) |
499 | if (expect_true (have_monotonic)) |
277 | { |
500 | { |
… | |
… | |
290 | { |
513 | { |
291 | return ev_rt_now; |
514 | return ev_rt_now; |
292 | } |
515 | } |
293 | #endif |
516 | #endif |
294 | |
517 | |
295 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
518 | void |
|
|
519 | ev_sleep (ev_tstamp delay) |
|
|
520 | { |
|
|
521 | if (delay > 0.) |
|
|
522 | { |
|
|
523 | #if EV_USE_NANOSLEEP |
|
|
524 | struct timespec ts; |
|
|
525 | |
|
|
526 | ts.tv_sec = (time_t)delay; |
|
|
527 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
528 | |
|
|
529 | nanosleep (&ts, 0); |
|
|
530 | #elif defined(_WIN32) |
|
|
531 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
532 | #else |
|
|
533 | struct timeval tv; |
|
|
534 | |
|
|
535 | tv.tv_sec = (time_t)delay; |
|
|
536 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
537 | |
|
|
538 | select (0, 0, 0, 0, &tv); |
|
|
539 | #endif |
|
|
540 | } |
|
|
541 | } |
|
|
542 | |
|
|
543 | /*****************************************************************************/ |
|
|
544 | |
|
|
545 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
546 | |
|
|
547 | int inline_size |
|
|
548 | array_nextsize (int elem, int cur, int cnt) |
|
|
549 | { |
|
|
550 | int ncur = cur + 1; |
|
|
551 | |
|
|
552 | do |
|
|
553 | ncur <<= 1; |
|
|
554 | while (cnt > ncur); |
|
|
555 | |
|
|
556 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
557 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
558 | { |
|
|
559 | ncur *= elem; |
|
|
560 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
561 | ncur = ncur - sizeof (void *) * 4; |
|
|
562 | ncur /= elem; |
|
|
563 | } |
|
|
564 | |
|
|
565 | return ncur; |
|
|
566 | } |
|
|
567 | |
|
|
568 | static noinline void * |
|
|
569 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
570 | { |
|
|
571 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
572 | return ev_realloc (base, elem * *cur); |
|
|
573 | } |
296 | |
574 | |
297 | #define array_needsize(type,base,cur,cnt,init) \ |
575 | #define array_needsize(type,base,cur,cnt,init) \ |
298 | if (expect_false ((cnt) > cur)) \ |
576 | if (expect_false ((cnt) > (cur))) \ |
299 | { \ |
577 | { \ |
300 | int newcnt = cur; \ |
578 | int ocur_ = (cur); \ |
301 | do \ |
579 | (base) = (type *)array_realloc \ |
302 | { \ |
580 | (sizeof (type), (base), &(cur), (cnt)); \ |
303 | newcnt = array_roundsize (type, newcnt << 1); \ |
581 | init ((base) + (ocur_), (cur) - ocur_); \ |
304 | } \ |
|
|
305 | while ((cnt) > newcnt); \ |
|
|
306 | \ |
|
|
307 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
308 | init (base + cur, newcnt - cur); \ |
|
|
309 | cur = newcnt; \ |
|
|
310 | } |
582 | } |
311 | |
583 | |
|
|
584 | #if 0 |
312 | #define array_slim(type,stem) \ |
585 | #define array_slim(type,stem) \ |
313 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
586 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
314 | { \ |
587 | { \ |
315 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
588 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
316 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
589 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
317 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
590 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
318 | } |
591 | } |
319 | |
592 | #endif |
320 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
321 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
322 | #define array_free_microshit(stem) \ |
|
|
323 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
324 | |
593 | |
325 | #define array_free(stem, idx) \ |
594 | #define array_free(stem, idx) \ |
326 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
595 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
327 | |
596 | |
328 | /*****************************************************************************/ |
597 | /*****************************************************************************/ |
329 | |
598 | |
330 | static void |
599 | void noinline |
|
|
600 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
601 | { |
|
|
602 | W w_ = (W)w; |
|
|
603 | int pri = ABSPRI (w_); |
|
|
604 | |
|
|
605 | if (expect_false (w_->pending)) |
|
|
606 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
607 | else |
|
|
608 | { |
|
|
609 | w_->pending = ++pendingcnt [pri]; |
|
|
610 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
611 | pendings [pri][w_->pending - 1].w = w_; |
|
|
612 | pendings [pri][w_->pending - 1].events = revents; |
|
|
613 | } |
|
|
614 | } |
|
|
615 | |
|
|
616 | void inline_speed |
|
|
617 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
618 | { |
|
|
619 | int i; |
|
|
620 | |
|
|
621 | for (i = 0; i < eventcnt; ++i) |
|
|
622 | ev_feed_event (EV_A_ events [i], type); |
|
|
623 | } |
|
|
624 | |
|
|
625 | /*****************************************************************************/ |
|
|
626 | |
|
|
627 | void inline_size |
331 | anfds_init (ANFD *base, int count) |
628 | anfds_init (ANFD *base, int count) |
332 | { |
629 | { |
333 | while (count--) |
630 | while (count--) |
334 | { |
631 | { |
335 | base->head = 0; |
632 | base->head = 0; |
… | |
… | |
338 | |
635 | |
339 | ++base; |
636 | ++base; |
340 | } |
637 | } |
341 | } |
638 | } |
342 | |
639 | |
343 | void |
640 | void inline_speed |
344 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
345 | { |
|
|
346 | W w_ = (W)w; |
|
|
347 | |
|
|
348 | if (w_->pending) |
|
|
349 | { |
|
|
350 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
351 | return; |
|
|
352 | } |
|
|
353 | |
|
|
354 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
355 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
|
|
356 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
357 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
358 | } |
|
|
359 | |
|
|
360 | static void |
|
|
361 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
362 | { |
|
|
363 | int i; |
|
|
364 | |
|
|
365 | for (i = 0; i < eventcnt; ++i) |
|
|
366 | ev_feed_event (EV_A_ events [i], type); |
|
|
367 | } |
|
|
368 | |
|
|
369 | inline void |
|
|
370 | fd_event (EV_P_ int fd, int revents) |
641 | fd_event (EV_P_ int fd, int revents) |
371 | { |
642 | { |
372 | ANFD *anfd = anfds + fd; |
643 | ANFD *anfd = anfds + fd; |
373 | struct ev_io *w; |
644 | ev_io *w; |
374 | |
645 | |
375 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
646 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
376 | { |
647 | { |
377 | int ev = w->events & revents; |
648 | int ev = w->events & revents; |
378 | |
649 | |
379 | if (ev) |
650 | if (ev) |
380 | ev_feed_event (EV_A_ (W)w, ev); |
651 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
382 | } |
653 | } |
383 | |
654 | |
384 | void |
655 | void |
385 | ev_feed_fd_event (EV_P_ int fd, int revents) |
656 | ev_feed_fd_event (EV_P_ int fd, int revents) |
386 | { |
657 | { |
|
|
658 | if (fd >= 0 && fd < anfdmax) |
387 | fd_event (EV_A_ fd, revents); |
659 | fd_event (EV_A_ fd, revents); |
388 | } |
660 | } |
389 | |
661 | |
390 | /*****************************************************************************/ |
662 | void inline_size |
391 | |
|
|
392 | static void |
|
|
393 | fd_reify (EV_P) |
663 | fd_reify (EV_P) |
394 | { |
664 | { |
395 | int i; |
665 | int i; |
396 | |
666 | |
397 | for (i = 0; i < fdchangecnt; ++i) |
667 | for (i = 0; i < fdchangecnt; ++i) |
398 | { |
668 | { |
399 | int fd = fdchanges [i]; |
669 | int fd = fdchanges [i]; |
400 | ANFD *anfd = anfds + fd; |
670 | ANFD *anfd = anfds + fd; |
401 | struct ev_io *w; |
671 | ev_io *w; |
402 | |
672 | |
403 | int events = 0; |
673 | unsigned char events = 0; |
404 | |
674 | |
405 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
675 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
406 | events |= w->events; |
676 | events |= (unsigned char)w->events; |
407 | |
677 | |
|
|
678 | #if EV_SELECT_IS_WINSOCKET |
|
|
679 | if (events) |
|
|
680 | { |
|
|
681 | unsigned long argp; |
|
|
682 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
683 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
684 | #else |
|
|
685 | anfd->handle = _get_osfhandle (fd); |
|
|
686 | #endif |
|
|
687 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
688 | } |
|
|
689 | #endif |
|
|
690 | |
|
|
691 | { |
|
|
692 | unsigned char o_events = anfd->events; |
|
|
693 | unsigned char o_reify = anfd->reify; |
|
|
694 | |
408 | anfd->reify = 0; |
695 | anfd->reify = 0; |
409 | |
|
|
410 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
411 | anfd->events = events; |
696 | anfd->events = events; |
|
|
697 | |
|
|
698 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
699 | backend_modify (EV_A_ fd, o_events, events); |
|
|
700 | } |
412 | } |
701 | } |
413 | |
702 | |
414 | fdchangecnt = 0; |
703 | fdchangecnt = 0; |
415 | } |
704 | } |
416 | |
705 | |
417 | static void |
706 | void inline_size |
418 | fd_change (EV_P_ int fd) |
707 | fd_change (EV_P_ int fd, int flags) |
419 | { |
708 | { |
420 | if (anfds [fd].reify) |
709 | unsigned char reify = anfds [fd].reify; |
421 | return; |
|
|
422 | |
|
|
423 | anfds [fd].reify = 1; |
710 | anfds [fd].reify |= flags; |
424 | |
711 | |
|
|
712 | if (expect_true (!reify)) |
|
|
713 | { |
425 | ++fdchangecnt; |
714 | ++fdchangecnt; |
426 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
715 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
427 | fdchanges [fdchangecnt - 1] = fd; |
716 | fdchanges [fdchangecnt - 1] = fd; |
|
|
717 | } |
428 | } |
718 | } |
429 | |
719 | |
430 | static void |
720 | void inline_speed |
431 | fd_kill (EV_P_ int fd) |
721 | fd_kill (EV_P_ int fd) |
432 | { |
722 | { |
433 | struct ev_io *w; |
723 | ev_io *w; |
434 | |
724 | |
435 | while ((w = (struct ev_io *)anfds [fd].head)) |
725 | while ((w = (ev_io *)anfds [fd].head)) |
436 | { |
726 | { |
437 | ev_io_stop (EV_A_ w); |
727 | ev_io_stop (EV_A_ w); |
438 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
728 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
439 | } |
729 | } |
440 | } |
730 | } |
441 | |
731 | |
442 | static int |
732 | int inline_size |
443 | fd_valid (int fd) |
733 | fd_valid (int fd) |
444 | { |
734 | { |
445 | #ifdef WIN32 |
735 | #ifdef _WIN32 |
446 | return !!win32_get_osfhandle (fd); |
736 | return _get_osfhandle (fd) != -1; |
447 | #else |
737 | #else |
448 | return fcntl (fd, F_GETFD) != -1; |
738 | return fcntl (fd, F_GETFD) != -1; |
449 | #endif |
739 | #endif |
450 | } |
740 | } |
451 | |
741 | |
452 | /* called on EBADF to verify fds */ |
742 | /* called on EBADF to verify fds */ |
453 | static void |
743 | static void noinline |
454 | fd_ebadf (EV_P) |
744 | fd_ebadf (EV_P) |
455 | { |
745 | { |
456 | int fd; |
746 | int fd; |
457 | |
747 | |
458 | for (fd = 0; fd < anfdmax; ++fd) |
748 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
460 | if (!fd_valid (fd) == -1 && errno == EBADF) |
750 | if (!fd_valid (fd) == -1 && errno == EBADF) |
461 | fd_kill (EV_A_ fd); |
751 | fd_kill (EV_A_ fd); |
462 | } |
752 | } |
463 | |
753 | |
464 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
754 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
465 | static void |
755 | static void noinline |
466 | fd_enomem (EV_P) |
756 | fd_enomem (EV_P) |
467 | { |
757 | { |
468 | int fd; |
758 | int fd; |
469 | |
759 | |
470 | for (fd = anfdmax; fd--; ) |
760 | for (fd = anfdmax; fd--; ) |
… | |
… | |
473 | fd_kill (EV_A_ fd); |
763 | fd_kill (EV_A_ fd); |
474 | return; |
764 | return; |
475 | } |
765 | } |
476 | } |
766 | } |
477 | |
767 | |
478 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
768 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
479 | static void |
769 | static void noinline |
480 | fd_rearm_all (EV_P) |
770 | fd_rearm_all (EV_P) |
481 | { |
771 | { |
482 | int fd; |
772 | int fd; |
483 | |
773 | |
484 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
485 | for (fd = 0; fd < anfdmax; ++fd) |
774 | for (fd = 0; fd < anfdmax; ++fd) |
486 | if (anfds [fd].events) |
775 | if (anfds [fd].events) |
487 | { |
776 | { |
488 | anfds [fd].events = 0; |
777 | anfds [fd].events = 0; |
489 | fd_change (EV_A_ fd); |
778 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
490 | } |
779 | } |
491 | } |
780 | } |
492 | |
781 | |
493 | /*****************************************************************************/ |
782 | /*****************************************************************************/ |
494 | |
783 | |
495 | static void |
784 | /* |
|
|
785 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
786 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
787 | * the branching factor of the d-tree. |
|
|
788 | */ |
|
|
789 | |
|
|
790 | /* |
|
|
791 | * at the moment we allow libev the luxury of two heaps, |
|
|
792 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
793 | * which is more cache-efficient. |
|
|
794 | * the difference is about 5% with 50000+ watchers. |
|
|
795 | */ |
|
|
796 | #define EV_USE_4HEAP !EV_MINIMAL |
|
|
797 | #if EV_USE_4HEAP |
|
|
798 | |
|
|
799 | #define DHEAP 4 |
|
|
800 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
801 | |
|
|
802 | /* towards the root */ |
|
|
803 | void inline_speed |
496 | upheap (WT *heap, int k) |
804 | upheap (ANHE *heap, int k) |
497 | { |
805 | { |
498 | WT w = heap [k]; |
806 | ANHE he = heap [k]; |
499 | |
807 | |
500 | while (k && heap [k >> 1]->at > w->at) |
808 | for (;;) |
501 | { |
809 | { |
|
|
810 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
|
|
811 | |
|
|
812 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
813 | break; |
|
|
814 | |
502 | heap [k] = heap [k >> 1]; |
815 | heap [k] = heap [p]; |
503 | ((W)heap [k])->active = k + 1; |
816 | ev_active (ANHE_w (heap [k])) = k; |
504 | k >>= 1; |
817 | k = p; |
|
|
818 | } |
|
|
819 | |
|
|
820 | ev_active (ANHE_w (he)) = k; |
|
|
821 | heap [k] = he; |
|
|
822 | } |
|
|
823 | |
|
|
824 | /* away from the root */ |
|
|
825 | void inline_speed |
|
|
826 | downheap (ANHE *heap, int N, int k) |
|
|
827 | { |
|
|
828 | ANHE he = heap [k]; |
|
|
829 | ANHE *E = heap + N + HEAP0; |
|
|
830 | |
|
|
831 | for (;;) |
|
|
832 | { |
|
|
833 | ev_tstamp minat; |
|
|
834 | ANHE *minpos; |
|
|
835 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
|
|
836 | |
|
|
837 | // find minimum child |
|
|
838 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
839 | { |
|
|
840 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
841 | if (ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
842 | if (ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
843 | if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
844 | } |
|
|
845 | else if (pos < E) |
|
|
846 | { |
|
|
847 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
848 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
849 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
850 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
851 | } |
|
|
852 | else |
|
|
853 | break; |
|
|
854 | |
|
|
855 | if (ANHE_at (he) <= minat) |
|
|
856 | break; |
|
|
857 | |
|
|
858 | ev_active (ANHE_w (*minpos)) = k; |
|
|
859 | heap [k] = *minpos; |
|
|
860 | |
|
|
861 | k = minpos - heap; |
|
|
862 | } |
|
|
863 | |
|
|
864 | ev_active (ANHE_w (he)) = k; |
|
|
865 | heap [k] = he; |
|
|
866 | } |
|
|
867 | |
|
|
868 | #else // 4HEAP |
|
|
869 | |
|
|
870 | #define HEAP0 1 |
|
|
871 | |
|
|
872 | /* towards the root */ |
|
|
873 | void inline_speed |
|
|
874 | upheap (ANHE *heap, int k) |
|
|
875 | { |
|
|
876 | ANHE he = heap [k]; |
|
|
877 | |
|
|
878 | for (;;) |
|
|
879 | { |
|
|
880 | int p = k >> 1; |
|
|
881 | |
|
|
882 | /* maybe we could use a dummy element at heap [0]? */ |
|
|
883 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
884 | break; |
|
|
885 | |
|
|
886 | heap [k] = heap [p]; |
|
|
887 | ev_active (ANHE_w (heap [k])) = k; |
|
|
888 | k = p; |
505 | } |
889 | } |
506 | |
890 | |
507 | heap [k] = w; |
891 | heap [k] = w; |
508 | ((W)heap [k])->active = k + 1; |
892 | ev_active (ANHE_w (heap [k])) = k; |
509 | |
|
|
510 | } |
893 | } |
511 | |
894 | |
512 | static void |
895 | /* away from the root */ |
|
|
896 | void inline_speed |
513 | downheap (WT *heap, int N, int k) |
897 | downheap (ANHE *heap, int N, int k) |
514 | { |
898 | { |
515 | WT w = heap [k]; |
899 | ANHE he = heap [k]; |
516 | |
900 | |
517 | while (k < (N >> 1)) |
901 | for (;;) |
518 | { |
902 | { |
519 | int j = k << 1; |
903 | int c = k << 1; |
520 | |
904 | |
521 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
905 | if (c > N) |
522 | ++j; |
|
|
523 | |
|
|
524 | if (w->at <= heap [j]->at) |
|
|
525 | break; |
906 | break; |
526 | |
907 | |
|
|
908 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
909 | ? 1 : 0; |
|
|
910 | |
|
|
911 | if (w->at <= ANHE_at (heap [c])) |
|
|
912 | break; |
|
|
913 | |
527 | heap [k] = heap [j]; |
914 | heap [k] = heap [c]; |
528 | ((W)heap [k])->active = k + 1; |
915 | ev_active (ANHE_w (heap [k])) = k; |
|
|
916 | |
529 | k = j; |
917 | k = c; |
530 | } |
918 | } |
531 | |
919 | |
532 | heap [k] = w; |
920 | heap [k] = he; |
533 | ((W)heap [k])->active = k + 1; |
921 | ev_active (ANHE_w (he)) = k; |
534 | } |
922 | } |
|
|
923 | #endif |
535 | |
924 | |
536 | inline void |
925 | void inline_size |
537 | adjustheap (WT *heap, int N, int k, ev_tstamp at) |
926 | adjustheap (ANHE *heap, int N, int k) |
538 | { |
927 | { |
539 | ev_tstamp old_at = heap [k]->at; |
928 | upheap (heap, k); |
540 | heap [k]->at = at; |
|
|
541 | |
|
|
542 | if (old_at < at) |
|
|
543 | downheap (heap, N, k); |
929 | downheap (heap, N, k); |
544 | else |
|
|
545 | upheap (heap, k); |
|
|
546 | } |
930 | } |
547 | |
931 | |
548 | /*****************************************************************************/ |
932 | /*****************************************************************************/ |
549 | |
933 | |
550 | typedef struct |
934 | typedef struct |
551 | { |
935 | { |
552 | WL head; |
936 | WL head; |
553 | sig_atomic_t volatile gotsig; |
937 | EV_ATOMIC_T gotsig; |
554 | } ANSIG; |
938 | } ANSIG; |
555 | |
939 | |
556 | static ANSIG *signals; |
940 | static ANSIG *signals; |
557 | static int signalmax; |
941 | static int signalmax; |
558 | |
942 | |
559 | static int sigpipe [2]; |
943 | static EV_ATOMIC_T gotsig; |
560 | static sig_atomic_t volatile gotsig; |
|
|
561 | static struct ev_io sigev; |
|
|
562 | |
944 | |
563 | static void |
945 | void inline_size |
564 | signals_init (ANSIG *base, int count) |
946 | signals_init (ANSIG *base, int count) |
565 | { |
947 | { |
566 | while (count--) |
948 | while (count--) |
567 | { |
949 | { |
568 | base->head = 0; |
950 | base->head = 0; |
… | |
… | |
570 | |
952 | |
571 | ++base; |
953 | ++base; |
572 | } |
954 | } |
573 | } |
955 | } |
574 | |
956 | |
|
|
957 | /*****************************************************************************/ |
|
|
958 | |
|
|
959 | void inline_speed |
|
|
960 | fd_intern (int fd) |
|
|
961 | { |
|
|
962 | #ifdef _WIN32 |
|
|
963 | int arg = 1; |
|
|
964 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
965 | #else |
|
|
966 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
967 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
968 | #endif |
|
|
969 | } |
|
|
970 | |
|
|
971 | static void noinline |
|
|
972 | evpipe_init (EV_P) |
|
|
973 | { |
|
|
974 | if (!ev_is_active (&pipeev)) |
|
|
975 | { |
|
|
976 | #if EV_USE_EVENTFD |
|
|
977 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
978 | { |
|
|
979 | evpipe [0] = -1; |
|
|
980 | fd_intern (evfd); |
|
|
981 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
982 | } |
|
|
983 | else |
|
|
984 | #endif |
|
|
985 | { |
|
|
986 | while (pipe (evpipe)) |
|
|
987 | syserr ("(libev) error creating signal/async pipe"); |
|
|
988 | |
|
|
989 | fd_intern (evpipe [0]); |
|
|
990 | fd_intern (evpipe [1]); |
|
|
991 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
992 | } |
|
|
993 | |
|
|
994 | ev_io_start (EV_A_ &pipeev); |
|
|
995 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
996 | } |
|
|
997 | } |
|
|
998 | |
|
|
999 | void inline_size |
|
|
1000 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1001 | { |
|
|
1002 | if (!*flag) |
|
|
1003 | { |
|
|
1004 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1005 | |
|
|
1006 | *flag = 1; |
|
|
1007 | |
|
|
1008 | #if EV_USE_EVENTFD |
|
|
1009 | if (evfd >= 0) |
|
|
1010 | { |
|
|
1011 | uint64_t counter = 1; |
|
|
1012 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1013 | } |
|
|
1014 | else |
|
|
1015 | #endif |
|
|
1016 | write (evpipe [1], &old_errno, 1); |
|
|
1017 | |
|
|
1018 | errno = old_errno; |
|
|
1019 | } |
|
|
1020 | } |
|
|
1021 | |
575 | static void |
1022 | static void |
|
|
1023 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1024 | { |
|
|
1025 | #if EV_USE_EVENTFD |
|
|
1026 | if (evfd >= 0) |
|
|
1027 | { |
|
|
1028 | uint64_t counter; |
|
|
1029 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1030 | } |
|
|
1031 | else |
|
|
1032 | #endif |
|
|
1033 | { |
|
|
1034 | char dummy; |
|
|
1035 | read (evpipe [0], &dummy, 1); |
|
|
1036 | } |
|
|
1037 | |
|
|
1038 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1039 | { |
|
|
1040 | int signum; |
|
|
1041 | gotsig = 0; |
|
|
1042 | |
|
|
1043 | for (signum = signalmax; signum--; ) |
|
|
1044 | if (signals [signum].gotsig) |
|
|
1045 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | #if EV_ASYNC_ENABLE |
|
|
1049 | if (gotasync) |
|
|
1050 | { |
|
|
1051 | int i; |
|
|
1052 | gotasync = 0; |
|
|
1053 | |
|
|
1054 | for (i = asynccnt; i--; ) |
|
|
1055 | if (asyncs [i]->sent) |
|
|
1056 | { |
|
|
1057 | asyncs [i]->sent = 0; |
|
|
1058 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1059 | } |
|
|
1060 | } |
|
|
1061 | #endif |
|
|
1062 | } |
|
|
1063 | |
|
|
1064 | /*****************************************************************************/ |
|
|
1065 | |
|
|
1066 | static void |
576 | sighandler (int signum) |
1067 | ev_sighandler (int signum) |
577 | { |
1068 | { |
|
|
1069 | #if EV_MULTIPLICITY |
|
|
1070 | struct ev_loop *loop = &default_loop_struct; |
|
|
1071 | #endif |
|
|
1072 | |
578 | #if WIN32 |
1073 | #if _WIN32 |
579 | signal (signum, sighandler); |
1074 | signal (signum, ev_sighandler); |
580 | #endif |
1075 | #endif |
581 | |
1076 | |
582 | signals [signum - 1].gotsig = 1; |
1077 | signals [signum - 1].gotsig = 1; |
583 | |
1078 | evpipe_write (EV_A_ &gotsig); |
584 | if (!gotsig) |
|
|
585 | { |
|
|
586 | int old_errno = errno; |
|
|
587 | gotsig = 1; |
|
|
588 | #ifdef WIN32 |
|
|
589 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
590 | #else |
|
|
591 | write (sigpipe [1], &signum, 1); |
|
|
592 | #endif |
|
|
593 | errno = old_errno; |
|
|
594 | } |
|
|
595 | } |
1079 | } |
596 | |
1080 | |
597 | void |
1081 | void noinline |
598 | ev_feed_signal_event (EV_P_ int signum) |
1082 | ev_feed_signal_event (EV_P_ int signum) |
599 | { |
1083 | { |
600 | WL w; |
1084 | WL w; |
601 | |
1085 | |
602 | #if EV_MULTIPLICITY |
1086 | #if EV_MULTIPLICITY |
603 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
1087 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
604 | #endif |
1088 | #endif |
605 | |
1089 | |
606 | --signum; |
1090 | --signum; |
607 | |
1091 | |
608 | if (signum < 0 || signum >= signalmax) |
1092 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
612 | |
1096 | |
613 | for (w = signals [signum].head; w; w = w->next) |
1097 | for (w = signals [signum].head; w; w = w->next) |
614 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1098 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
615 | } |
1099 | } |
616 | |
1100 | |
617 | static void |
|
|
618 | sigcb (EV_P_ struct ev_io *iow, int revents) |
|
|
619 | { |
|
|
620 | int signum; |
|
|
621 | |
|
|
622 | #ifdef WIN32 |
|
|
623 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
|
|
624 | #else |
|
|
625 | read (sigpipe [0], &revents, 1); |
|
|
626 | #endif |
|
|
627 | gotsig = 0; |
|
|
628 | |
|
|
629 | for (signum = signalmax; signum--; ) |
|
|
630 | if (signals [signum].gotsig) |
|
|
631 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
632 | } |
|
|
633 | |
|
|
634 | static void |
|
|
635 | siginit (EV_P) |
|
|
636 | { |
|
|
637 | #ifndef WIN32 |
|
|
638 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
639 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
640 | |
|
|
641 | /* rather than sort out wether we really need nb, set it */ |
|
|
642 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
643 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
644 | #endif |
|
|
645 | |
|
|
646 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
647 | ev_io_start (EV_A_ &sigev); |
|
|
648 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
649 | } |
|
|
650 | |
|
|
651 | /*****************************************************************************/ |
1101 | /*****************************************************************************/ |
652 | |
1102 | |
653 | static struct ev_child *childs [PID_HASHSIZE]; |
1103 | static WL childs [EV_PID_HASHSIZE]; |
654 | |
1104 | |
655 | #ifndef WIN32 |
1105 | #ifndef _WIN32 |
656 | |
1106 | |
657 | static struct ev_signal childev; |
1107 | static ev_signal childev; |
|
|
1108 | |
|
|
1109 | #ifndef WIFCONTINUED |
|
|
1110 | # define WIFCONTINUED(status) 0 |
|
|
1111 | #endif |
|
|
1112 | |
|
|
1113 | void inline_speed |
|
|
1114 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1115 | { |
|
|
1116 | ev_child *w; |
|
|
1117 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1118 | |
|
|
1119 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1120 | { |
|
|
1121 | if ((w->pid == pid || !w->pid) |
|
|
1122 | && (!traced || (w->flags & 1))) |
|
|
1123 | { |
|
|
1124 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1125 | w->rpid = pid; |
|
|
1126 | w->rstatus = status; |
|
|
1127 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1128 | } |
|
|
1129 | } |
|
|
1130 | } |
658 | |
1131 | |
659 | #ifndef WCONTINUED |
1132 | #ifndef WCONTINUED |
660 | # define WCONTINUED 0 |
1133 | # define WCONTINUED 0 |
661 | #endif |
1134 | #endif |
662 | |
1135 | |
663 | static void |
1136 | static void |
664 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
665 | { |
|
|
666 | struct ev_child *w; |
|
|
667 | |
|
|
668 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
669 | if (w->pid == pid || !w->pid) |
|
|
670 | { |
|
|
671 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
672 | w->rpid = pid; |
|
|
673 | w->rstatus = status; |
|
|
674 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
675 | } |
|
|
676 | } |
|
|
677 | |
|
|
678 | static void |
|
|
679 | childcb (EV_P_ struct ev_signal *sw, int revents) |
1137 | childcb (EV_P_ ev_signal *sw, int revents) |
680 | { |
1138 | { |
681 | int pid, status; |
1139 | int pid, status; |
682 | |
1140 | |
|
|
1141 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
683 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1142 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
684 | { |
1143 | if (!WCONTINUED |
|
|
1144 | || errno != EINVAL |
|
|
1145 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1146 | return; |
|
|
1147 | |
685 | /* make sure we are called again until all childs have been reaped */ |
1148 | /* make sure we are called again until all children have been reaped */ |
|
|
1149 | /* we need to do it this way so that the callback gets called before we continue */ |
686 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1150 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
687 | |
1151 | |
688 | child_reap (EV_A_ sw, pid, pid, status); |
1152 | child_reap (EV_A_ pid, pid, status); |
|
|
1153 | if (EV_PID_HASHSIZE > 1) |
689 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
1154 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
690 | } |
|
|
691 | } |
1155 | } |
692 | |
1156 | |
693 | #endif |
1157 | #endif |
694 | |
1158 | |
695 | /*****************************************************************************/ |
1159 | /*****************************************************************************/ |
696 | |
1160 | |
|
|
1161 | #if EV_USE_PORT |
|
|
1162 | # include "ev_port.c" |
|
|
1163 | #endif |
697 | #if EV_USE_KQUEUE |
1164 | #if EV_USE_KQUEUE |
698 | # include "ev_kqueue.c" |
1165 | # include "ev_kqueue.c" |
699 | #endif |
1166 | #endif |
700 | #if EV_USE_EPOLL |
1167 | #if EV_USE_EPOLL |
701 | # include "ev_epoll.c" |
1168 | # include "ev_epoll.c" |
… | |
… | |
718 | { |
1185 | { |
719 | return EV_VERSION_MINOR; |
1186 | return EV_VERSION_MINOR; |
720 | } |
1187 | } |
721 | |
1188 | |
722 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1189 | /* return true if we are running with elevated privileges and should ignore env variables */ |
723 | static int |
1190 | int inline_size |
724 | enable_secure (void) |
1191 | enable_secure (void) |
725 | { |
1192 | { |
726 | #ifdef WIN32 |
1193 | #ifdef _WIN32 |
727 | return 0; |
1194 | return 0; |
728 | #else |
1195 | #else |
729 | return getuid () != geteuid () |
1196 | return getuid () != geteuid () |
730 | || getgid () != getegid (); |
1197 | || getgid () != getegid (); |
731 | #endif |
1198 | #endif |
732 | } |
1199 | } |
733 | |
1200 | |
734 | int |
1201 | unsigned int |
735 | ev_method (EV_P) |
1202 | ev_supported_backends (void) |
736 | { |
1203 | { |
737 | return method; |
1204 | unsigned int flags = 0; |
738 | } |
|
|
739 | |
1205 | |
740 | static void |
1206 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
741 | loop_init (EV_P_ int methods) |
1207 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1208 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1209 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1210 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1211 | |
|
|
1212 | return flags; |
|
|
1213 | } |
|
|
1214 | |
|
|
1215 | unsigned int |
|
|
1216 | ev_recommended_backends (void) |
742 | { |
1217 | { |
743 | if (!method) |
1218 | unsigned int flags = ev_supported_backends (); |
|
|
1219 | |
|
|
1220 | #ifndef __NetBSD__ |
|
|
1221 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1222 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1223 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1224 | #endif |
|
|
1225 | #ifdef __APPLE__ |
|
|
1226 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1227 | flags &= ~EVBACKEND_POLL; |
|
|
1228 | #endif |
|
|
1229 | |
|
|
1230 | return flags; |
|
|
1231 | } |
|
|
1232 | |
|
|
1233 | unsigned int |
|
|
1234 | ev_embeddable_backends (void) |
|
|
1235 | { |
|
|
1236 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1237 | |
|
|
1238 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1239 | /* please fix it and tell me how to detect the fix */ |
|
|
1240 | flags &= ~EVBACKEND_EPOLL; |
|
|
1241 | |
|
|
1242 | return flags; |
|
|
1243 | } |
|
|
1244 | |
|
|
1245 | unsigned int |
|
|
1246 | ev_backend (EV_P) |
|
|
1247 | { |
|
|
1248 | return backend; |
|
|
1249 | } |
|
|
1250 | |
|
|
1251 | unsigned int |
|
|
1252 | ev_loop_count (EV_P) |
|
|
1253 | { |
|
|
1254 | return loop_count; |
|
|
1255 | } |
|
|
1256 | |
|
|
1257 | void |
|
|
1258 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1259 | { |
|
|
1260 | io_blocktime = interval; |
|
|
1261 | } |
|
|
1262 | |
|
|
1263 | void |
|
|
1264 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1265 | { |
|
|
1266 | timeout_blocktime = interval; |
|
|
1267 | } |
|
|
1268 | |
|
|
1269 | static void noinline |
|
|
1270 | loop_init (EV_P_ unsigned int flags) |
|
|
1271 | { |
|
|
1272 | if (!backend) |
744 | { |
1273 | { |
745 | #if EV_USE_MONOTONIC |
1274 | #if EV_USE_MONOTONIC |
746 | { |
1275 | { |
747 | struct timespec ts; |
1276 | struct timespec ts; |
748 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1277 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
749 | have_monotonic = 1; |
1278 | have_monotonic = 1; |
750 | } |
1279 | } |
751 | #endif |
1280 | #endif |
752 | |
1281 | |
753 | ev_rt_now = ev_time (); |
1282 | ev_rt_now = ev_time (); |
754 | mn_now = get_clock (); |
1283 | mn_now = get_clock (); |
755 | now_floor = mn_now; |
1284 | now_floor = mn_now; |
756 | rtmn_diff = ev_rt_now - mn_now; |
1285 | rtmn_diff = ev_rt_now - mn_now; |
757 | |
1286 | |
758 | if (methods == EVMETHOD_AUTO) |
1287 | io_blocktime = 0.; |
759 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1288 | timeout_blocktime = 0.; |
|
|
1289 | backend = 0; |
|
|
1290 | backend_fd = -1; |
|
|
1291 | gotasync = 0; |
|
|
1292 | #if EV_USE_INOTIFY |
|
|
1293 | fs_fd = -2; |
|
|
1294 | #endif |
|
|
1295 | |
|
|
1296 | /* pid check not overridable via env */ |
|
|
1297 | #ifndef _WIN32 |
|
|
1298 | if (flags & EVFLAG_FORKCHECK) |
|
|
1299 | curpid = getpid (); |
|
|
1300 | #endif |
|
|
1301 | |
|
|
1302 | if (!(flags & EVFLAG_NOENV) |
|
|
1303 | && !enable_secure () |
|
|
1304 | && getenv ("LIBEV_FLAGS")) |
760 | methods = atoi (getenv ("LIBEV_METHODS")); |
1305 | flags = atoi (getenv ("LIBEV_FLAGS")); |
761 | else |
|
|
762 | methods = EVMETHOD_ANY; |
|
|
763 | |
1306 | |
764 | method = 0; |
1307 | if (!(flags & 0x0000ffffU)) |
765 | #if EV_USE_WIN32 |
1308 | flags |= ev_recommended_backends (); |
766 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
1309 | |
|
|
1310 | #if EV_USE_PORT |
|
|
1311 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
767 | #endif |
1312 | #endif |
768 | #if EV_USE_KQUEUE |
1313 | #if EV_USE_KQUEUE |
769 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
1314 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
770 | #endif |
1315 | #endif |
771 | #if EV_USE_EPOLL |
1316 | #if EV_USE_EPOLL |
772 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
1317 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
773 | #endif |
1318 | #endif |
774 | #if EV_USE_POLL |
1319 | #if EV_USE_POLL |
775 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
1320 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
776 | #endif |
1321 | #endif |
777 | #if EV_USE_SELECT |
1322 | #if EV_USE_SELECT |
778 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
1323 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
779 | #endif |
1324 | #endif |
780 | |
1325 | |
781 | ev_init (&sigev, sigcb); |
1326 | ev_init (&pipeev, pipecb); |
782 | ev_set_priority (&sigev, EV_MAXPRI); |
1327 | ev_set_priority (&pipeev, EV_MAXPRI); |
783 | } |
1328 | } |
784 | } |
1329 | } |
785 | |
1330 | |
786 | void |
1331 | static void noinline |
787 | loop_destroy (EV_P) |
1332 | loop_destroy (EV_P) |
788 | { |
1333 | { |
789 | int i; |
1334 | int i; |
790 | |
1335 | |
|
|
1336 | if (ev_is_active (&pipeev)) |
|
|
1337 | { |
|
|
1338 | ev_ref (EV_A); /* signal watcher */ |
|
|
1339 | ev_io_stop (EV_A_ &pipeev); |
|
|
1340 | |
|
|
1341 | #if EV_USE_EVENTFD |
|
|
1342 | if (evfd >= 0) |
|
|
1343 | close (evfd); |
|
|
1344 | #endif |
|
|
1345 | |
|
|
1346 | if (evpipe [0] >= 0) |
|
|
1347 | { |
|
|
1348 | close (evpipe [0]); |
|
|
1349 | close (evpipe [1]); |
|
|
1350 | } |
|
|
1351 | } |
|
|
1352 | |
791 | #if EV_USE_WIN32 |
1353 | #if EV_USE_INOTIFY |
792 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
1354 | if (fs_fd >= 0) |
|
|
1355 | close (fs_fd); |
|
|
1356 | #endif |
|
|
1357 | |
|
|
1358 | if (backend_fd >= 0) |
|
|
1359 | close (backend_fd); |
|
|
1360 | |
|
|
1361 | #if EV_USE_PORT |
|
|
1362 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
793 | #endif |
1363 | #endif |
794 | #if EV_USE_KQUEUE |
1364 | #if EV_USE_KQUEUE |
795 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1365 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
796 | #endif |
1366 | #endif |
797 | #if EV_USE_EPOLL |
1367 | #if EV_USE_EPOLL |
798 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1368 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
799 | #endif |
1369 | #endif |
800 | #if EV_USE_POLL |
1370 | #if EV_USE_POLL |
801 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1371 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
802 | #endif |
1372 | #endif |
803 | #if EV_USE_SELECT |
1373 | #if EV_USE_SELECT |
804 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1374 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
805 | #endif |
1375 | #endif |
806 | |
1376 | |
807 | for (i = NUMPRI; i--; ) |
1377 | for (i = NUMPRI; i--; ) |
|
|
1378 | { |
808 | array_free (pending, [i]); |
1379 | array_free (pending, [i]); |
|
|
1380 | #if EV_IDLE_ENABLE |
|
|
1381 | array_free (idle, [i]); |
|
|
1382 | #endif |
|
|
1383 | } |
|
|
1384 | |
|
|
1385 | ev_free (anfds); anfdmax = 0; |
809 | |
1386 | |
810 | /* have to use the microsoft-never-gets-it-right macro */ |
1387 | /* have to use the microsoft-never-gets-it-right macro */ |
811 | array_free_microshit (fdchange); |
1388 | array_free (fdchange, EMPTY); |
812 | array_free_microshit (timer); |
1389 | array_free (timer, EMPTY); |
813 | #if EV_PERIODICS |
1390 | #if EV_PERIODIC_ENABLE |
814 | array_free_microshit (periodic); |
1391 | array_free (periodic, EMPTY); |
815 | #endif |
1392 | #endif |
816 | array_free_microshit (idle); |
1393 | #if EV_FORK_ENABLE |
817 | array_free_microshit (prepare); |
1394 | array_free (fork, EMPTY); |
818 | array_free_microshit (check); |
1395 | #endif |
|
|
1396 | array_free (prepare, EMPTY); |
|
|
1397 | array_free (check, EMPTY); |
|
|
1398 | #if EV_ASYNC_ENABLE |
|
|
1399 | array_free (async, EMPTY); |
|
|
1400 | #endif |
819 | |
1401 | |
820 | method = 0; |
1402 | backend = 0; |
821 | } |
1403 | } |
822 | |
1404 | |
823 | static void |
1405 | #if EV_USE_INOTIFY |
|
|
1406 | void inline_size infy_fork (EV_P); |
|
|
1407 | #endif |
|
|
1408 | |
|
|
1409 | void inline_size |
824 | loop_fork (EV_P) |
1410 | loop_fork (EV_P) |
825 | { |
1411 | { |
|
|
1412 | #if EV_USE_PORT |
|
|
1413 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1414 | #endif |
|
|
1415 | #if EV_USE_KQUEUE |
|
|
1416 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1417 | #endif |
826 | #if EV_USE_EPOLL |
1418 | #if EV_USE_EPOLL |
827 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1419 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
828 | #endif |
1420 | #endif |
829 | #if EV_USE_KQUEUE |
1421 | #if EV_USE_INOTIFY |
830 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1422 | infy_fork (EV_A); |
831 | #endif |
1423 | #endif |
832 | |
1424 | |
833 | if (ev_is_active (&sigev)) |
1425 | if (ev_is_active (&pipeev)) |
834 | { |
1426 | { |
835 | /* default loop */ |
1427 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1428 | /* while we modify the fd vars */ |
|
|
1429 | gotsig = 1; |
|
|
1430 | #if EV_ASYNC_ENABLE |
|
|
1431 | gotasync = 1; |
|
|
1432 | #endif |
836 | |
1433 | |
837 | ev_ref (EV_A); |
1434 | ev_ref (EV_A); |
838 | ev_io_stop (EV_A_ &sigev); |
1435 | ev_io_stop (EV_A_ &pipeev); |
|
|
1436 | |
|
|
1437 | #if EV_USE_EVENTFD |
|
|
1438 | if (evfd >= 0) |
|
|
1439 | close (evfd); |
|
|
1440 | #endif |
|
|
1441 | |
|
|
1442 | if (evpipe [0] >= 0) |
|
|
1443 | { |
839 | close (sigpipe [0]); |
1444 | close (evpipe [0]); |
840 | close (sigpipe [1]); |
1445 | close (evpipe [1]); |
|
|
1446 | } |
841 | |
1447 | |
842 | while (pipe (sigpipe)) |
|
|
843 | syserr ("(libev) error creating pipe"); |
|
|
844 | |
|
|
845 | siginit (EV_A); |
1448 | evpipe_init (EV_A); |
|
|
1449 | /* now iterate over everything, in case we missed something */ |
|
|
1450 | pipecb (EV_A_ &pipeev, EV_READ); |
846 | } |
1451 | } |
847 | |
1452 | |
848 | postfork = 0; |
1453 | postfork = 0; |
849 | } |
1454 | } |
850 | |
1455 | |
851 | #if EV_MULTIPLICITY |
1456 | #if EV_MULTIPLICITY |
852 | struct ev_loop * |
1457 | struct ev_loop * |
853 | ev_loop_new (int methods) |
1458 | ev_loop_new (unsigned int flags) |
854 | { |
1459 | { |
855 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1460 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
856 | |
1461 | |
857 | memset (loop, 0, sizeof (struct ev_loop)); |
1462 | memset (loop, 0, sizeof (struct ev_loop)); |
858 | |
1463 | |
859 | loop_init (EV_A_ methods); |
1464 | loop_init (EV_A_ flags); |
860 | |
1465 | |
861 | if (ev_method (EV_A)) |
1466 | if (ev_backend (EV_A)) |
862 | return loop; |
1467 | return loop; |
863 | |
1468 | |
864 | return 0; |
1469 | return 0; |
865 | } |
1470 | } |
866 | |
1471 | |
… | |
… | |
872 | } |
1477 | } |
873 | |
1478 | |
874 | void |
1479 | void |
875 | ev_loop_fork (EV_P) |
1480 | ev_loop_fork (EV_P) |
876 | { |
1481 | { |
877 | postfork = 1; |
1482 | postfork = 1; /* must be in line with ev_default_fork */ |
878 | } |
1483 | } |
879 | |
|
|
880 | #endif |
1484 | #endif |
881 | |
1485 | |
882 | #if EV_MULTIPLICITY |
1486 | #if EV_MULTIPLICITY |
883 | struct ev_loop * |
1487 | struct ev_loop * |
|
|
1488 | ev_default_loop_init (unsigned int flags) |
884 | #else |
1489 | #else |
885 | int |
1490 | int |
|
|
1491 | ev_default_loop (unsigned int flags) |
886 | #endif |
1492 | #endif |
887 | ev_default_loop (int methods) |
|
|
888 | { |
1493 | { |
889 | if (sigpipe [0] == sigpipe [1]) |
|
|
890 | if (pipe (sigpipe)) |
|
|
891 | return 0; |
|
|
892 | |
|
|
893 | if (!default_loop) |
1494 | if (!ev_default_loop_ptr) |
894 | { |
1495 | { |
895 | #if EV_MULTIPLICITY |
1496 | #if EV_MULTIPLICITY |
896 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1497 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
897 | #else |
1498 | #else |
898 | default_loop = 1; |
1499 | ev_default_loop_ptr = 1; |
899 | #endif |
1500 | #endif |
900 | |
1501 | |
901 | loop_init (EV_A_ methods); |
1502 | loop_init (EV_A_ flags); |
902 | |
1503 | |
903 | if (ev_method (EV_A)) |
1504 | if (ev_backend (EV_A)) |
904 | { |
1505 | { |
905 | siginit (EV_A); |
|
|
906 | |
|
|
907 | #ifndef WIN32 |
1506 | #ifndef _WIN32 |
908 | ev_signal_init (&childev, childcb, SIGCHLD); |
1507 | ev_signal_init (&childev, childcb, SIGCHLD); |
909 | ev_set_priority (&childev, EV_MAXPRI); |
1508 | ev_set_priority (&childev, EV_MAXPRI); |
910 | ev_signal_start (EV_A_ &childev); |
1509 | ev_signal_start (EV_A_ &childev); |
911 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1510 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
912 | #endif |
1511 | #endif |
913 | } |
1512 | } |
914 | else |
1513 | else |
915 | default_loop = 0; |
1514 | ev_default_loop_ptr = 0; |
916 | } |
1515 | } |
917 | |
1516 | |
918 | return default_loop; |
1517 | return ev_default_loop_ptr; |
919 | } |
1518 | } |
920 | |
1519 | |
921 | void |
1520 | void |
922 | ev_default_destroy (void) |
1521 | ev_default_destroy (void) |
923 | { |
1522 | { |
924 | #if EV_MULTIPLICITY |
1523 | #if EV_MULTIPLICITY |
925 | struct ev_loop *loop = default_loop; |
1524 | struct ev_loop *loop = ev_default_loop_ptr; |
926 | #endif |
1525 | #endif |
927 | |
1526 | |
928 | #ifndef WIN32 |
1527 | #ifndef _WIN32 |
929 | ev_ref (EV_A); /* child watcher */ |
1528 | ev_ref (EV_A); /* child watcher */ |
930 | ev_signal_stop (EV_A_ &childev); |
1529 | ev_signal_stop (EV_A_ &childev); |
931 | #endif |
1530 | #endif |
932 | |
1531 | |
933 | ev_ref (EV_A); /* signal watcher */ |
|
|
934 | ev_io_stop (EV_A_ &sigev); |
|
|
935 | |
|
|
936 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
937 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
938 | |
|
|
939 | loop_destroy (EV_A); |
1532 | loop_destroy (EV_A); |
940 | } |
1533 | } |
941 | |
1534 | |
942 | void |
1535 | void |
943 | ev_default_fork (void) |
1536 | ev_default_fork (void) |
944 | { |
1537 | { |
945 | #if EV_MULTIPLICITY |
1538 | #if EV_MULTIPLICITY |
946 | struct ev_loop *loop = default_loop; |
1539 | struct ev_loop *loop = ev_default_loop_ptr; |
947 | #endif |
1540 | #endif |
948 | |
1541 | |
949 | if (method) |
1542 | if (backend) |
950 | postfork = 1; |
1543 | postfork = 1; /* must be in line with ev_loop_fork */ |
951 | } |
1544 | } |
952 | |
1545 | |
953 | /*****************************************************************************/ |
1546 | /*****************************************************************************/ |
954 | |
1547 | |
955 | static int |
1548 | void |
956 | any_pending (EV_P) |
1549 | ev_invoke (EV_P_ void *w, int revents) |
957 | { |
1550 | { |
958 | int pri; |
1551 | EV_CB_INVOKE ((W)w, revents); |
959 | |
|
|
960 | for (pri = NUMPRI; pri--; ) |
|
|
961 | if (pendingcnt [pri]) |
|
|
962 | return 1; |
|
|
963 | |
|
|
964 | return 0; |
|
|
965 | } |
1552 | } |
966 | |
1553 | |
967 | static void |
1554 | void inline_speed |
968 | call_pending (EV_P) |
1555 | call_pending (EV_P) |
969 | { |
1556 | { |
970 | int pri; |
1557 | int pri; |
971 | |
1558 | |
972 | for (pri = NUMPRI; pri--; ) |
1559 | for (pri = NUMPRI; pri--; ) |
973 | while (pendingcnt [pri]) |
1560 | while (pendingcnt [pri]) |
974 | { |
1561 | { |
975 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1562 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
976 | |
1563 | |
977 | if (p->w) |
1564 | if (expect_true (p->w)) |
978 | { |
1565 | { |
|
|
1566 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1567 | |
979 | p->w->pending = 0; |
1568 | p->w->pending = 0; |
980 | EV_CB_INVOKE (p->w, p->events); |
1569 | EV_CB_INVOKE (p->w, p->events); |
981 | } |
1570 | } |
982 | } |
1571 | } |
983 | } |
1572 | } |
984 | |
1573 | |
985 | static void |
1574 | #if EV_IDLE_ENABLE |
|
|
1575 | void inline_size |
|
|
1576 | idle_reify (EV_P) |
|
|
1577 | { |
|
|
1578 | if (expect_false (idleall)) |
|
|
1579 | { |
|
|
1580 | int pri; |
|
|
1581 | |
|
|
1582 | for (pri = NUMPRI; pri--; ) |
|
|
1583 | { |
|
|
1584 | if (pendingcnt [pri]) |
|
|
1585 | break; |
|
|
1586 | |
|
|
1587 | if (idlecnt [pri]) |
|
|
1588 | { |
|
|
1589 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1590 | break; |
|
|
1591 | } |
|
|
1592 | } |
|
|
1593 | } |
|
|
1594 | } |
|
|
1595 | #endif |
|
|
1596 | |
|
|
1597 | void inline_size |
986 | timers_reify (EV_P) |
1598 | timers_reify (EV_P) |
987 | { |
1599 | { |
988 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1600 | while (timercnt && ANHE_at (timers [HEAP0]) <= mn_now) |
989 | { |
1601 | { |
990 | struct ev_timer *w = timers [0]; |
1602 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
991 | |
1603 | |
992 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1604 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
993 | |
1605 | |
994 | /* first reschedule or stop timer */ |
1606 | /* first reschedule or stop timer */ |
995 | if (w->repeat) |
1607 | if (w->repeat) |
996 | { |
1608 | { |
997 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1609 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
998 | |
1610 | |
999 | ((WT)w)->at += w->repeat; |
1611 | ev_at (w) += w->repeat; |
1000 | if (((WT)w)->at < mn_now) |
1612 | if (ev_at (w) < mn_now) |
1001 | ((WT)w)->at = mn_now; |
1613 | ev_at (w) = mn_now; |
1002 | |
1614 | |
|
|
1615 | ANHE_at_set (timers [HEAP0]); |
1003 | downheap ((WT *)timers, timercnt, 0); |
1616 | downheap (timers, timercnt, HEAP0); |
1004 | } |
1617 | } |
1005 | else |
1618 | else |
1006 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1619 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1007 | |
1620 | |
1008 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1621 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1009 | } |
1622 | } |
1010 | } |
1623 | } |
1011 | |
1624 | |
1012 | #if EV_PERIODICS |
1625 | #if EV_PERIODIC_ENABLE |
1013 | static void |
1626 | void inline_size |
1014 | periodics_reify (EV_P) |
1627 | periodics_reify (EV_P) |
1015 | { |
1628 | { |
1016 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1629 | while (periodiccnt && ANHE_at (periodics [HEAP0]) <= ev_rt_now) |
1017 | { |
1630 | { |
1018 | struct ev_periodic *w = periodics [0]; |
1631 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1019 | |
1632 | |
1020 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1633 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1021 | |
1634 | |
1022 | /* first reschedule or stop timer */ |
1635 | /* first reschedule or stop timer */ |
1023 | if (w->reschedule_cb) |
1636 | if (w->reschedule_cb) |
1024 | { |
1637 | { |
1025 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1638 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1026 | |
|
|
1027 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1639 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
|
|
1640 | ANHE_at_set (periodics [HEAP0]); |
1028 | downheap ((WT *)periodics, periodiccnt, 0); |
1641 | downheap (periodics, periodiccnt, HEAP0); |
1029 | } |
1642 | } |
1030 | else if (w->interval) |
1643 | else if (w->interval) |
1031 | { |
1644 | { |
1032 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1645 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1646 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
1033 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1647 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1648 | ANHE_at_set (periodics [HEAP0]); |
1034 | downheap ((WT *)periodics, periodiccnt, 0); |
1649 | downheap (periodics, periodiccnt, HEAP0); |
1035 | } |
1650 | } |
1036 | else |
1651 | else |
1037 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1652 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1038 | |
1653 | |
1039 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1654 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1040 | } |
1655 | } |
1041 | } |
1656 | } |
1042 | |
1657 | |
1043 | static void |
1658 | static void noinline |
1044 | periodics_reschedule (EV_P) |
1659 | periodics_reschedule (EV_P) |
1045 | { |
1660 | { |
1046 | int i; |
1661 | int i; |
1047 | |
1662 | |
1048 | /* adjust periodics after time jump */ |
1663 | /* adjust periodics after time jump */ |
1049 | for (i = 0; i < periodiccnt; ++i) |
1664 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1050 | { |
1665 | { |
1051 | struct ev_periodic *w = periodics [i]; |
1666 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1052 | |
1667 | |
1053 | if (w->reschedule_cb) |
1668 | if (w->reschedule_cb) |
1054 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1669 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1055 | else if (w->interval) |
1670 | else if (w->interval) |
1056 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1671 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1057 | } |
|
|
1058 | |
1672 | |
1059 | /* now rebuild the heap */ |
1673 | ANHE_at_set (periodics [i]); |
|
|
1674 | } |
|
|
1675 | |
|
|
1676 | /* now rebuild the heap, this for the 2-heap, inefficient for the 4-heap, but correct */ |
1060 | for (i = periodiccnt >> 1; i--; ) |
1677 | for (i = periodiccnt >> 1; --i; ) |
1061 | downheap ((WT *)periodics, periodiccnt, i); |
1678 | downheap (periodics, periodiccnt, i + HEAP0); |
1062 | } |
1679 | } |
1063 | #endif |
1680 | #endif |
1064 | |
1681 | |
1065 | inline int |
1682 | void inline_speed |
1066 | time_update_monotonic (EV_P) |
1683 | time_update (EV_P_ ev_tstamp max_block) |
1067 | { |
1684 | { |
|
|
1685 | int i; |
|
|
1686 | |
|
|
1687 | #if EV_USE_MONOTONIC |
|
|
1688 | if (expect_true (have_monotonic)) |
|
|
1689 | { |
|
|
1690 | ev_tstamp odiff = rtmn_diff; |
|
|
1691 | |
1068 | mn_now = get_clock (); |
1692 | mn_now = get_clock (); |
1069 | |
1693 | |
|
|
1694 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1695 | /* interpolate in the meantime */ |
1070 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1696 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1071 | { |
1697 | { |
1072 | ev_rt_now = rtmn_diff + mn_now; |
1698 | ev_rt_now = rtmn_diff + mn_now; |
1073 | return 0; |
1699 | return; |
1074 | } |
1700 | } |
1075 | else |
1701 | |
1076 | { |
|
|
1077 | now_floor = mn_now; |
1702 | now_floor = mn_now; |
1078 | ev_rt_now = ev_time (); |
1703 | ev_rt_now = ev_time (); |
1079 | return 1; |
|
|
1080 | } |
|
|
1081 | } |
|
|
1082 | |
1704 | |
1083 | static void |
1705 | /* loop a few times, before making important decisions. |
1084 | time_update (EV_P) |
1706 | * on the choice of "4": one iteration isn't enough, |
1085 | { |
1707 | * in case we get preempted during the calls to |
1086 | int i; |
1708 | * ev_time and get_clock. a second call is almost guaranteed |
1087 | |
1709 | * to succeed in that case, though. and looping a few more times |
1088 | #if EV_USE_MONOTONIC |
1710 | * doesn't hurt either as we only do this on time-jumps or |
1089 | if (expect_true (have_monotonic)) |
1711 | * in the unlikely event of having been preempted here. |
1090 | { |
1712 | */ |
1091 | if (time_update_monotonic (EV_A)) |
1713 | for (i = 4; --i; ) |
1092 | { |
1714 | { |
1093 | ev_tstamp odiff = rtmn_diff; |
1715 | rtmn_diff = ev_rt_now - mn_now; |
1094 | |
1716 | |
1095 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1717 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
|
|
1718 | return; /* all is well */ |
|
|
1719 | |
|
|
1720 | ev_rt_now = ev_time (); |
|
|
1721 | mn_now = get_clock (); |
|
|
1722 | now_floor = mn_now; |
|
|
1723 | } |
|
|
1724 | |
|
|
1725 | # if EV_PERIODIC_ENABLE |
|
|
1726 | periodics_reschedule (EV_A); |
|
|
1727 | # endif |
|
|
1728 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1729 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1730 | } |
|
|
1731 | else |
|
|
1732 | #endif |
|
|
1733 | { |
|
|
1734 | ev_rt_now = ev_time (); |
|
|
1735 | |
|
|
1736 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1737 | { |
|
|
1738 | #if EV_PERIODIC_ENABLE |
|
|
1739 | periodics_reschedule (EV_A); |
|
|
1740 | #endif |
|
|
1741 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1742 | for (i = 0; i < timercnt; ++i) |
1096 | { |
1743 | { |
1097 | rtmn_diff = ev_rt_now - mn_now; |
1744 | ANHE *he = timers + i + HEAP0; |
1098 | |
1745 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
1099 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1746 | ANHE_at_set (*he); |
1100 | return; /* all is well */ |
|
|
1101 | |
|
|
1102 | ev_rt_now = ev_time (); |
|
|
1103 | mn_now = get_clock (); |
|
|
1104 | now_floor = mn_now; |
|
|
1105 | } |
1747 | } |
1106 | |
|
|
1107 | # if EV_PERIODICS |
|
|
1108 | periodics_reschedule (EV_A); |
|
|
1109 | # endif |
|
|
1110 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1111 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1112 | } |
1748 | } |
1113 | } |
|
|
1114 | else |
|
|
1115 | #endif |
|
|
1116 | { |
|
|
1117 | ev_rt_now = ev_time (); |
|
|
1118 | |
|
|
1119 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1120 | { |
|
|
1121 | #if EV_PERIODICS |
|
|
1122 | periodics_reschedule (EV_A); |
|
|
1123 | #endif |
|
|
1124 | |
|
|
1125 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1126 | for (i = 0; i < timercnt; ++i) |
|
|
1127 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1128 | } |
|
|
1129 | |
1749 | |
1130 | mn_now = ev_rt_now; |
1750 | mn_now = ev_rt_now; |
1131 | } |
1751 | } |
1132 | } |
1752 | } |
1133 | |
1753 | |
… | |
… | |
1146 | static int loop_done; |
1766 | static int loop_done; |
1147 | |
1767 | |
1148 | void |
1768 | void |
1149 | ev_loop (EV_P_ int flags) |
1769 | ev_loop (EV_P_ int flags) |
1150 | { |
1770 | { |
1151 | double block; |
1771 | loop_done = EVUNLOOP_CANCEL; |
1152 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1772 | |
|
|
1773 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1153 | |
1774 | |
1154 | do |
1775 | do |
1155 | { |
1776 | { |
|
|
1777 | #ifndef _WIN32 |
|
|
1778 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1779 | if (expect_false (getpid () != curpid)) |
|
|
1780 | { |
|
|
1781 | curpid = getpid (); |
|
|
1782 | postfork = 1; |
|
|
1783 | } |
|
|
1784 | #endif |
|
|
1785 | |
|
|
1786 | #if EV_FORK_ENABLE |
|
|
1787 | /* we might have forked, so queue fork handlers */ |
|
|
1788 | if (expect_false (postfork)) |
|
|
1789 | if (forkcnt) |
|
|
1790 | { |
|
|
1791 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1792 | call_pending (EV_A); |
|
|
1793 | } |
|
|
1794 | #endif |
|
|
1795 | |
1156 | /* queue check watchers (and execute them) */ |
1796 | /* queue prepare watchers (and execute them) */ |
1157 | if (expect_false (preparecnt)) |
1797 | if (expect_false (preparecnt)) |
1158 | { |
1798 | { |
1159 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1799 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1160 | call_pending (EV_A); |
1800 | call_pending (EV_A); |
1161 | } |
1801 | } |
1162 | |
1802 | |
|
|
1803 | if (expect_false (!activecnt)) |
|
|
1804 | break; |
|
|
1805 | |
1163 | /* we might have forked, so reify kernel state if necessary */ |
1806 | /* we might have forked, so reify kernel state if necessary */ |
1164 | if (expect_false (postfork)) |
1807 | if (expect_false (postfork)) |
1165 | loop_fork (EV_A); |
1808 | loop_fork (EV_A); |
1166 | |
1809 | |
1167 | /* update fd-related kernel structures */ |
1810 | /* update fd-related kernel structures */ |
1168 | fd_reify (EV_A); |
1811 | fd_reify (EV_A); |
1169 | |
1812 | |
1170 | /* calculate blocking time */ |
1813 | /* calculate blocking time */ |
|
|
1814 | { |
|
|
1815 | ev_tstamp waittime = 0.; |
|
|
1816 | ev_tstamp sleeptime = 0.; |
1171 | |
1817 | |
1172 | /* we only need this for !monotonic clock or timers, but as we basically |
1818 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1173 | always have timers, we just calculate it always */ |
|
|
1174 | #if EV_USE_MONOTONIC |
|
|
1175 | if (expect_true (have_monotonic)) |
|
|
1176 | time_update_monotonic (EV_A); |
|
|
1177 | else |
|
|
1178 | #endif |
|
|
1179 | { |
1819 | { |
1180 | ev_rt_now = ev_time (); |
1820 | /* update time to cancel out callback processing overhead */ |
1181 | mn_now = ev_rt_now; |
1821 | time_update (EV_A_ 1e100); |
1182 | } |
|
|
1183 | |
1822 | |
1184 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1185 | block = 0.; |
|
|
1186 | else |
|
|
1187 | { |
|
|
1188 | block = MAX_BLOCKTIME; |
1823 | waittime = MAX_BLOCKTIME; |
1189 | |
1824 | |
1190 | if (timercnt) |
1825 | if (timercnt) |
1191 | { |
1826 | { |
1192 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1827 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1193 | if (block > to) block = to; |
1828 | if (waittime > to) waittime = to; |
1194 | } |
1829 | } |
1195 | |
1830 | |
1196 | #if EV_PERIODICS |
1831 | #if EV_PERIODIC_ENABLE |
1197 | if (periodiccnt) |
1832 | if (periodiccnt) |
1198 | { |
1833 | { |
1199 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1834 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1200 | if (block > to) block = to; |
1835 | if (waittime > to) waittime = to; |
1201 | } |
1836 | } |
1202 | #endif |
1837 | #endif |
1203 | |
1838 | |
1204 | if (block < 0.) block = 0.; |
1839 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1840 | waittime = timeout_blocktime; |
|
|
1841 | |
|
|
1842 | sleeptime = waittime - backend_fudge; |
|
|
1843 | |
|
|
1844 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1845 | sleeptime = io_blocktime; |
|
|
1846 | |
|
|
1847 | if (sleeptime) |
|
|
1848 | { |
|
|
1849 | ev_sleep (sleeptime); |
|
|
1850 | waittime -= sleeptime; |
|
|
1851 | } |
1205 | } |
1852 | } |
1206 | |
1853 | |
1207 | method_poll (EV_A_ block); |
1854 | ++loop_count; |
|
|
1855 | backend_poll (EV_A_ waittime); |
1208 | |
1856 | |
1209 | /* update ev_rt_now, do magic */ |
1857 | /* update ev_rt_now, do magic */ |
1210 | time_update (EV_A); |
1858 | time_update (EV_A_ waittime + sleeptime); |
|
|
1859 | } |
1211 | |
1860 | |
1212 | /* queue pending timers and reschedule them */ |
1861 | /* queue pending timers and reschedule them */ |
1213 | timers_reify (EV_A); /* relative timers called last */ |
1862 | timers_reify (EV_A); /* relative timers called last */ |
1214 | #if EV_PERIODICS |
1863 | #if EV_PERIODIC_ENABLE |
1215 | periodics_reify (EV_A); /* absolute timers called first */ |
1864 | periodics_reify (EV_A); /* absolute timers called first */ |
1216 | #endif |
1865 | #endif |
1217 | |
1866 | |
|
|
1867 | #if EV_IDLE_ENABLE |
1218 | /* queue idle watchers unless io or timers are pending */ |
1868 | /* queue idle watchers unless other events are pending */ |
1219 | if (idlecnt && !any_pending (EV_A)) |
1869 | idle_reify (EV_A); |
1220 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1870 | #endif |
1221 | |
1871 | |
1222 | /* queue check watchers, to be executed first */ |
1872 | /* queue check watchers, to be executed first */ |
1223 | if (checkcnt) |
1873 | if (expect_false (checkcnt)) |
1224 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1874 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1225 | |
1875 | |
1226 | call_pending (EV_A); |
1876 | call_pending (EV_A); |
1227 | } |
1877 | } |
1228 | while (activecnt && !loop_done); |
1878 | while (expect_true ( |
|
|
1879 | activecnt |
|
|
1880 | && !loop_done |
|
|
1881 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1882 | )); |
1229 | |
1883 | |
1230 | if (loop_done != 2) |
1884 | if (loop_done == EVUNLOOP_ONE) |
1231 | loop_done = 0; |
1885 | loop_done = EVUNLOOP_CANCEL; |
1232 | } |
1886 | } |
1233 | |
1887 | |
1234 | void |
1888 | void |
1235 | ev_unloop (EV_P_ int how) |
1889 | ev_unloop (EV_P_ int how) |
1236 | { |
1890 | { |
1237 | loop_done = how; |
1891 | loop_done = how; |
1238 | } |
1892 | } |
1239 | |
1893 | |
1240 | /*****************************************************************************/ |
1894 | /*****************************************************************************/ |
1241 | |
1895 | |
1242 | inline void |
1896 | void inline_size |
1243 | wlist_add (WL *head, WL elem) |
1897 | wlist_add (WL *head, WL elem) |
1244 | { |
1898 | { |
1245 | elem->next = *head; |
1899 | elem->next = *head; |
1246 | *head = elem; |
1900 | *head = elem; |
1247 | } |
1901 | } |
1248 | |
1902 | |
1249 | inline void |
1903 | void inline_size |
1250 | wlist_del (WL *head, WL elem) |
1904 | wlist_del (WL *head, WL elem) |
1251 | { |
1905 | { |
1252 | while (*head) |
1906 | while (*head) |
1253 | { |
1907 | { |
1254 | if (*head == elem) |
1908 | if (*head == elem) |
… | |
… | |
1259 | |
1913 | |
1260 | head = &(*head)->next; |
1914 | head = &(*head)->next; |
1261 | } |
1915 | } |
1262 | } |
1916 | } |
1263 | |
1917 | |
1264 | inline void |
1918 | void inline_speed |
1265 | ev_clear_pending (EV_P_ W w) |
1919 | clear_pending (EV_P_ W w) |
1266 | { |
1920 | { |
1267 | if (w->pending) |
1921 | if (w->pending) |
1268 | { |
1922 | { |
1269 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1923 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1270 | w->pending = 0; |
1924 | w->pending = 0; |
1271 | } |
1925 | } |
1272 | } |
1926 | } |
1273 | |
1927 | |
1274 | inline void |
1928 | int |
|
|
1929 | ev_clear_pending (EV_P_ void *w) |
|
|
1930 | { |
|
|
1931 | W w_ = (W)w; |
|
|
1932 | int pending = w_->pending; |
|
|
1933 | |
|
|
1934 | if (expect_true (pending)) |
|
|
1935 | { |
|
|
1936 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1937 | w_->pending = 0; |
|
|
1938 | p->w = 0; |
|
|
1939 | return p->events; |
|
|
1940 | } |
|
|
1941 | else |
|
|
1942 | return 0; |
|
|
1943 | } |
|
|
1944 | |
|
|
1945 | void inline_size |
|
|
1946 | pri_adjust (EV_P_ W w) |
|
|
1947 | { |
|
|
1948 | int pri = w->priority; |
|
|
1949 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1950 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1951 | w->priority = pri; |
|
|
1952 | } |
|
|
1953 | |
|
|
1954 | void inline_speed |
1275 | ev_start (EV_P_ W w, int active) |
1955 | ev_start (EV_P_ W w, int active) |
1276 | { |
1956 | { |
1277 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1957 | pri_adjust (EV_A_ w); |
1278 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1279 | |
|
|
1280 | w->active = active; |
1958 | w->active = active; |
1281 | ev_ref (EV_A); |
1959 | ev_ref (EV_A); |
1282 | } |
1960 | } |
1283 | |
1961 | |
1284 | inline void |
1962 | void inline_size |
1285 | ev_stop (EV_P_ W w) |
1963 | ev_stop (EV_P_ W w) |
1286 | { |
1964 | { |
1287 | ev_unref (EV_A); |
1965 | ev_unref (EV_A); |
1288 | w->active = 0; |
1966 | w->active = 0; |
1289 | } |
1967 | } |
1290 | |
1968 | |
1291 | /*****************************************************************************/ |
1969 | /*****************************************************************************/ |
1292 | |
1970 | |
1293 | void |
1971 | void noinline |
1294 | ev_io_start (EV_P_ struct ev_io *w) |
1972 | ev_io_start (EV_P_ ev_io *w) |
1295 | { |
1973 | { |
1296 | int fd = w->fd; |
1974 | int fd = w->fd; |
1297 | |
1975 | |
1298 | if (ev_is_active (w)) |
1976 | if (expect_false (ev_is_active (w))) |
1299 | return; |
1977 | return; |
1300 | |
1978 | |
1301 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1979 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1302 | |
1980 | |
1303 | ev_start (EV_A_ (W)w, 1); |
1981 | ev_start (EV_A_ (W)w, 1); |
1304 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1982 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1305 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1983 | wlist_add (&anfds[fd].head, (WL)w); |
1306 | |
1984 | |
1307 | fd_change (EV_A_ fd); |
1985 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1986 | w->events &= ~EV_IOFDSET; |
1308 | } |
1987 | } |
1309 | |
1988 | |
1310 | void |
1989 | void noinline |
1311 | ev_io_stop (EV_P_ struct ev_io *w) |
1990 | ev_io_stop (EV_P_ ev_io *w) |
1312 | { |
1991 | { |
1313 | ev_clear_pending (EV_A_ (W)w); |
1992 | clear_pending (EV_A_ (W)w); |
1314 | if (!ev_is_active (w)) |
1993 | if (expect_false (!ev_is_active (w))) |
1315 | return; |
1994 | return; |
1316 | |
1995 | |
1317 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1996 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1318 | |
1997 | |
1319 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1998 | wlist_del (&anfds[w->fd].head, (WL)w); |
1320 | ev_stop (EV_A_ (W)w); |
1999 | ev_stop (EV_A_ (W)w); |
1321 | |
2000 | |
1322 | fd_change (EV_A_ w->fd); |
2001 | fd_change (EV_A_ w->fd, 1); |
1323 | } |
2002 | } |
1324 | |
2003 | |
1325 | void |
2004 | void noinline |
1326 | ev_timer_start (EV_P_ struct ev_timer *w) |
2005 | ev_timer_start (EV_P_ ev_timer *w) |
|
|
2006 | { |
|
|
2007 | if (expect_false (ev_is_active (w))) |
|
|
2008 | return; |
|
|
2009 | |
|
|
2010 | ev_at (w) += mn_now; |
|
|
2011 | |
|
|
2012 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
|
|
2013 | |
|
|
2014 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
|
|
2015 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
|
|
2016 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
|
|
2017 | ANHE_at_set (timers [ev_active (w)]); |
|
|
2018 | upheap (timers, ev_active (w)); |
|
|
2019 | |
|
|
2020 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
|
|
2021 | } |
|
|
2022 | |
|
|
2023 | void noinline |
|
|
2024 | ev_timer_stop (EV_P_ ev_timer *w) |
|
|
2025 | { |
|
|
2026 | clear_pending (EV_A_ (W)w); |
|
|
2027 | if (expect_false (!ev_is_active (w))) |
|
|
2028 | return; |
|
|
2029 | |
|
|
2030 | { |
|
|
2031 | int active = ev_active (w); |
|
|
2032 | |
|
|
2033 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2034 | |
|
|
2035 | if (expect_true (active < timercnt + HEAP0 - 1)) |
|
|
2036 | { |
|
|
2037 | timers [active] = timers [timercnt + HEAP0 - 1]; |
|
|
2038 | adjustheap (timers, timercnt, active); |
|
|
2039 | } |
|
|
2040 | |
|
|
2041 | --timercnt; |
|
|
2042 | } |
|
|
2043 | |
|
|
2044 | ev_at (w) -= mn_now; |
|
|
2045 | |
|
|
2046 | ev_stop (EV_A_ (W)w); |
|
|
2047 | } |
|
|
2048 | |
|
|
2049 | void noinline |
|
|
2050 | ev_timer_again (EV_P_ ev_timer *w) |
1327 | { |
2051 | { |
1328 | if (ev_is_active (w)) |
2052 | if (ev_is_active (w)) |
1329 | return; |
|
|
1330 | |
|
|
1331 | ((WT)w)->at += mn_now; |
|
|
1332 | |
|
|
1333 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
|
|
1334 | |
|
|
1335 | ev_start (EV_A_ (W)w, ++timercnt); |
|
|
1336 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
|
|
1337 | timers [timercnt - 1] = w; |
|
|
1338 | upheap ((WT *)timers, timercnt - 1); |
|
|
1339 | |
|
|
1340 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1341 | } |
|
|
1342 | |
|
|
1343 | void |
|
|
1344 | ev_timer_stop (EV_P_ struct ev_timer *w) |
|
|
1345 | { |
|
|
1346 | ev_clear_pending (EV_A_ (W)w); |
|
|
1347 | if (!ev_is_active (w)) |
|
|
1348 | return; |
|
|
1349 | |
|
|
1350 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1351 | |
|
|
1352 | if (((W)w)->active < timercnt--) |
|
|
1353 | { |
|
|
1354 | timers [((W)w)->active - 1] = timers [timercnt]; |
|
|
1355 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
|
|
1356 | } |
|
|
1357 | |
|
|
1358 | ((WT)w)->at -= mn_now; |
|
|
1359 | |
|
|
1360 | ev_stop (EV_A_ (W)w); |
|
|
1361 | } |
|
|
1362 | |
|
|
1363 | void |
|
|
1364 | ev_timer_again (EV_P_ struct ev_timer *w) |
|
|
1365 | { |
|
|
1366 | if (ev_is_active (w)) |
|
|
1367 | { |
2053 | { |
1368 | if (w->repeat) |
2054 | if (w->repeat) |
1369 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat); |
2055 | { |
|
|
2056 | ev_at (w) = mn_now + w->repeat; |
|
|
2057 | ANHE_at_set (timers [ev_active (w)]); |
|
|
2058 | adjustheap (timers, timercnt, ev_active (w)); |
|
|
2059 | } |
1370 | else |
2060 | else |
1371 | ev_timer_stop (EV_A_ w); |
2061 | ev_timer_stop (EV_A_ w); |
1372 | } |
2062 | } |
1373 | else if (w->repeat) |
2063 | else if (w->repeat) |
|
|
2064 | { |
|
|
2065 | ev_at (w) = w->repeat; |
1374 | ev_timer_start (EV_A_ w); |
2066 | ev_timer_start (EV_A_ w); |
|
|
2067 | } |
1375 | } |
2068 | } |
1376 | |
2069 | |
1377 | #if EV_PERIODICS |
2070 | #if EV_PERIODIC_ENABLE |
1378 | void |
2071 | void noinline |
1379 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
2072 | ev_periodic_start (EV_P_ ev_periodic *w) |
1380 | { |
2073 | { |
1381 | if (ev_is_active (w)) |
2074 | if (expect_false (ev_is_active (w))) |
1382 | return; |
2075 | return; |
1383 | |
2076 | |
1384 | if (w->reschedule_cb) |
2077 | if (w->reschedule_cb) |
1385 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2078 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1386 | else if (w->interval) |
2079 | else if (w->interval) |
1387 | { |
2080 | { |
1388 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2081 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1389 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2082 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1390 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2083 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1391 | } |
2084 | } |
|
|
2085 | else |
|
|
2086 | ev_at (w) = w->offset; |
1392 | |
2087 | |
1393 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2088 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
1394 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
2089 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1395 | periodics [periodiccnt - 1] = w; |
2090 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1396 | upheap ((WT *)periodics, periodiccnt - 1); |
2091 | upheap (periodics, ev_active (w)); |
1397 | |
2092 | |
1398 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2093 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1399 | } |
2094 | } |
1400 | |
2095 | |
1401 | void |
2096 | void noinline |
1402 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
2097 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1403 | { |
2098 | { |
1404 | ev_clear_pending (EV_A_ (W)w); |
2099 | clear_pending (EV_A_ (W)w); |
1405 | if (!ev_is_active (w)) |
2100 | if (expect_false (!ev_is_active (w))) |
1406 | return; |
2101 | return; |
1407 | |
2102 | |
|
|
2103 | { |
|
|
2104 | int active = ev_active (w); |
|
|
2105 | |
1408 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2106 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
1409 | |
2107 | |
1410 | if (((W)w)->active < periodiccnt--) |
2108 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
1411 | { |
2109 | { |
1412 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
2110 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
1413 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
2111 | adjustheap (periodics, periodiccnt, active); |
1414 | } |
2112 | } |
|
|
2113 | |
|
|
2114 | --periodiccnt; |
|
|
2115 | } |
1415 | |
2116 | |
1416 | ev_stop (EV_A_ (W)w); |
2117 | ev_stop (EV_A_ (W)w); |
1417 | } |
2118 | } |
1418 | |
2119 | |
1419 | void |
2120 | void noinline |
1420 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
2121 | ev_periodic_again (EV_P_ ev_periodic *w) |
1421 | { |
2122 | { |
1422 | /* TODO: use adjustheap and recalculation */ |
2123 | /* TODO: use adjustheap and recalculation */ |
1423 | ev_periodic_stop (EV_A_ w); |
2124 | ev_periodic_stop (EV_A_ w); |
1424 | ev_periodic_start (EV_A_ w); |
2125 | ev_periodic_start (EV_A_ w); |
1425 | } |
2126 | } |
1426 | #endif |
2127 | #endif |
1427 | |
2128 | |
1428 | void |
|
|
1429 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1430 | { |
|
|
1431 | if (ev_is_active (w)) |
|
|
1432 | return; |
|
|
1433 | |
|
|
1434 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1435 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1436 | idles [idlecnt - 1] = w; |
|
|
1437 | } |
|
|
1438 | |
|
|
1439 | void |
|
|
1440 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1441 | { |
|
|
1442 | ev_clear_pending (EV_A_ (W)w); |
|
|
1443 | if (ev_is_active (w)) |
|
|
1444 | return; |
|
|
1445 | |
|
|
1446 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1447 | ev_stop (EV_A_ (W)w); |
|
|
1448 | } |
|
|
1449 | |
|
|
1450 | void |
|
|
1451 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1452 | { |
|
|
1453 | if (ev_is_active (w)) |
|
|
1454 | return; |
|
|
1455 | |
|
|
1456 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1457 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1458 | prepares [preparecnt - 1] = w; |
|
|
1459 | } |
|
|
1460 | |
|
|
1461 | void |
|
|
1462 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1463 | { |
|
|
1464 | ev_clear_pending (EV_A_ (W)w); |
|
|
1465 | if (ev_is_active (w)) |
|
|
1466 | return; |
|
|
1467 | |
|
|
1468 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1469 | ev_stop (EV_A_ (W)w); |
|
|
1470 | } |
|
|
1471 | |
|
|
1472 | void |
|
|
1473 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1474 | { |
|
|
1475 | if (ev_is_active (w)) |
|
|
1476 | return; |
|
|
1477 | |
|
|
1478 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1479 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1480 | checks [checkcnt - 1] = w; |
|
|
1481 | } |
|
|
1482 | |
|
|
1483 | void |
|
|
1484 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1485 | { |
|
|
1486 | ev_clear_pending (EV_A_ (W)w); |
|
|
1487 | if (!ev_is_active (w)) |
|
|
1488 | return; |
|
|
1489 | |
|
|
1490 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1491 | ev_stop (EV_A_ (W)w); |
|
|
1492 | } |
|
|
1493 | |
|
|
1494 | #ifndef SA_RESTART |
2129 | #ifndef SA_RESTART |
1495 | # define SA_RESTART 0 |
2130 | # define SA_RESTART 0 |
1496 | #endif |
2131 | #endif |
1497 | |
2132 | |
1498 | void |
2133 | void noinline |
1499 | ev_signal_start (EV_P_ struct ev_signal *w) |
2134 | ev_signal_start (EV_P_ ev_signal *w) |
1500 | { |
2135 | { |
1501 | #if EV_MULTIPLICITY |
2136 | #if EV_MULTIPLICITY |
1502 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
2137 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1503 | #endif |
2138 | #endif |
1504 | if (ev_is_active (w)) |
2139 | if (expect_false (ev_is_active (w))) |
1505 | return; |
2140 | return; |
1506 | |
2141 | |
1507 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2142 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1508 | |
2143 | |
|
|
2144 | evpipe_init (EV_A); |
|
|
2145 | |
|
|
2146 | { |
|
|
2147 | #ifndef _WIN32 |
|
|
2148 | sigset_t full, prev; |
|
|
2149 | sigfillset (&full); |
|
|
2150 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2151 | #endif |
|
|
2152 | |
|
|
2153 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2154 | |
|
|
2155 | #ifndef _WIN32 |
|
|
2156 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2157 | #endif |
|
|
2158 | } |
|
|
2159 | |
1509 | ev_start (EV_A_ (W)w, 1); |
2160 | ev_start (EV_A_ (W)w, 1); |
1510 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1511 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2161 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1512 | |
2162 | |
1513 | if (!((WL)w)->next) |
2163 | if (!((WL)w)->next) |
1514 | { |
2164 | { |
1515 | #if WIN32 |
2165 | #if _WIN32 |
1516 | signal (w->signum, sighandler); |
2166 | signal (w->signum, ev_sighandler); |
1517 | #else |
2167 | #else |
1518 | struct sigaction sa; |
2168 | struct sigaction sa; |
1519 | sa.sa_handler = sighandler; |
2169 | sa.sa_handler = ev_sighandler; |
1520 | sigfillset (&sa.sa_mask); |
2170 | sigfillset (&sa.sa_mask); |
1521 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2171 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1522 | sigaction (w->signum, &sa, 0); |
2172 | sigaction (w->signum, &sa, 0); |
1523 | #endif |
2173 | #endif |
1524 | } |
2174 | } |
1525 | } |
2175 | } |
1526 | |
2176 | |
1527 | void |
2177 | void noinline |
1528 | ev_signal_stop (EV_P_ struct ev_signal *w) |
2178 | ev_signal_stop (EV_P_ ev_signal *w) |
1529 | { |
2179 | { |
1530 | ev_clear_pending (EV_A_ (W)w); |
2180 | clear_pending (EV_A_ (W)w); |
1531 | if (!ev_is_active (w)) |
2181 | if (expect_false (!ev_is_active (w))) |
1532 | return; |
2182 | return; |
1533 | |
2183 | |
1534 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2184 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1535 | ev_stop (EV_A_ (W)w); |
2185 | ev_stop (EV_A_ (W)w); |
1536 | |
2186 | |
1537 | if (!signals [w->signum - 1].head) |
2187 | if (!signals [w->signum - 1].head) |
1538 | signal (w->signum, SIG_DFL); |
2188 | signal (w->signum, SIG_DFL); |
1539 | } |
2189 | } |
1540 | |
2190 | |
1541 | void |
2191 | void |
1542 | ev_child_start (EV_P_ struct ev_child *w) |
2192 | ev_child_start (EV_P_ ev_child *w) |
1543 | { |
2193 | { |
1544 | #if EV_MULTIPLICITY |
2194 | #if EV_MULTIPLICITY |
1545 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
2195 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1546 | #endif |
2196 | #endif |
1547 | if (ev_is_active (w)) |
2197 | if (expect_false (ev_is_active (w))) |
1548 | return; |
2198 | return; |
1549 | |
2199 | |
1550 | ev_start (EV_A_ (W)w, 1); |
2200 | ev_start (EV_A_ (W)w, 1); |
1551 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2201 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1552 | } |
2202 | } |
1553 | |
2203 | |
1554 | void |
2204 | void |
1555 | ev_child_stop (EV_P_ struct ev_child *w) |
2205 | ev_child_stop (EV_P_ ev_child *w) |
1556 | { |
2206 | { |
1557 | ev_clear_pending (EV_A_ (W)w); |
2207 | clear_pending (EV_A_ (W)w); |
1558 | if (!ev_is_active (w)) |
2208 | if (expect_false (!ev_is_active (w))) |
1559 | return; |
2209 | return; |
1560 | |
2210 | |
1561 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2211 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1562 | ev_stop (EV_A_ (W)w); |
2212 | ev_stop (EV_A_ (W)w); |
1563 | } |
2213 | } |
1564 | |
2214 | |
|
|
2215 | #if EV_STAT_ENABLE |
|
|
2216 | |
|
|
2217 | # ifdef _WIN32 |
|
|
2218 | # undef lstat |
|
|
2219 | # define lstat(a,b) _stati64 (a,b) |
|
|
2220 | # endif |
|
|
2221 | |
|
|
2222 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2223 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2224 | |
|
|
2225 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2226 | |
|
|
2227 | #if EV_USE_INOTIFY |
|
|
2228 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2229 | |
|
|
2230 | static void noinline |
|
|
2231 | infy_add (EV_P_ ev_stat *w) |
|
|
2232 | { |
|
|
2233 | 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); |
|
|
2234 | |
|
|
2235 | if (w->wd < 0) |
|
|
2236 | { |
|
|
2237 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2238 | |
|
|
2239 | /* monitor some parent directory for speedup hints */ |
|
|
2240 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2241 | /* but an efficiency issue only */ |
|
|
2242 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2243 | { |
|
|
2244 | char path [4096]; |
|
|
2245 | strcpy (path, w->path); |
|
|
2246 | |
|
|
2247 | do |
|
|
2248 | { |
|
|
2249 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2250 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2251 | |
|
|
2252 | char *pend = strrchr (path, '/'); |
|
|
2253 | |
|
|
2254 | if (!pend) |
|
|
2255 | break; /* whoops, no '/', complain to your admin */ |
|
|
2256 | |
|
|
2257 | *pend = 0; |
|
|
2258 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2259 | } |
|
|
2260 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2261 | } |
|
|
2262 | } |
|
|
2263 | else |
|
|
2264 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2265 | |
|
|
2266 | if (w->wd >= 0) |
|
|
2267 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2268 | } |
|
|
2269 | |
|
|
2270 | static void noinline |
|
|
2271 | infy_del (EV_P_ ev_stat *w) |
|
|
2272 | { |
|
|
2273 | int slot; |
|
|
2274 | int wd = w->wd; |
|
|
2275 | |
|
|
2276 | if (wd < 0) |
|
|
2277 | return; |
|
|
2278 | |
|
|
2279 | w->wd = -2; |
|
|
2280 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2281 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2282 | |
|
|
2283 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2284 | inotify_rm_watch (fs_fd, wd); |
|
|
2285 | } |
|
|
2286 | |
|
|
2287 | static void noinline |
|
|
2288 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2289 | { |
|
|
2290 | if (slot < 0) |
|
|
2291 | /* overflow, need to check for all hahs slots */ |
|
|
2292 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2293 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2294 | else |
|
|
2295 | { |
|
|
2296 | WL w_; |
|
|
2297 | |
|
|
2298 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2299 | { |
|
|
2300 | ev_stat *w = (ev_stat *)w_; |
|
|
2301 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2302 | |
|
|
2303 | if (w->wd == wd || wd == -1) |
|
|
2304 | { |
|
|
2305 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2306 | { |
|
|
2307 | w->wd = -1; |
|
|
2308 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2309 | } |
|
|
2310 | |
|
|
2311 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2312 | } |
|
|
2313 | } |
|
|
2314 | } |
|
|
2315 | } |
|
|
2316 | |
|
|
2317 | static void |
|
|
2318 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2319 | { |
|
|
2320 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2321 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2322 | int ofs; |
|
|
2323 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2324 | |
|
|
2325 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2326 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2327 | } |
|
|
2328 | |
|
|
2329 | void inline_size |
|
|
2330 | infy_init (EV_P) |
|
|
2331 | { |
|
|
2332 | if (fs_fd != -2) |
|
|
2333 | return; |
|
|
2334 | |
|
|
2335 | fs_fd = inotify_init (); |
|
|
2336 | |
|
|
2337 | if (fs_fd >= 0) |
|
|
2338 | { |
|
|
2339 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2340 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2341 | ev_io_start (EV_A_ &fs_w); |
|
|
2342 | } |
|
|
2343 | } |
|
|
2344 | |
|
|
2345 | void inline_size |
|
|
2346 | infy_fork (EV_P) |
|
|
2347 | { |
|
|
2348 | int slot; |
|
|
2349 | |
|
|
2350 | if (fs_fd < 0) |
|
|
2351 | return; |
|
|
2352 | |
|
|
2353 | close (fs_fd); |
|
|
2354 | fs_fd = inotify_init (); |
|
|
2355 | |
|
|
2356 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2357 | { |
|
|
2358 | WL w_ = fs_hash [slot].head; |
|
|
2359 | fs_hash [slot].head = 0; |
|
|
2360 | |
|
|
2361 | while (w_) |
|
|
2362 | { |
|
|
2363 | ev_stat *w = (ev_stat *)w_; |
|
|
2364 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2365 | |
|
|
2366 | w->wd = -1; |
|
|
2367 | |
|
|
2368 | if (fs_fd >= 0) |
|
|
2369 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2370 | else |
|
|
2371 | ev_timer_start (EV_A_ &w->timer); |
|
|
2372 | } |
|
|
2373 | |
|
|
2374 | } |
|
|
2375 | } |
|
|
2376 | |
|
|
2377 | #endif |
|
|
2378 | |
|
|
2379 | void |
|
|
2380 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2381 | { |
|
|
2382 | if (lstat (w->path, &w->attr) < 0) |
|
|
2383 | w->attr.st_nlink = 0; |
|
|
2384 | else if (!w->attr.st_nlink) |
|
|
2385 | w->attr.st_nlink = 1; |
|
|
2386 | } |
|
|
2387 | |
|
|
2388 | static void noinline |
|
|
2389 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2390 | { |
|
|
2391 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2392 | |
|
|
2393 | /* we copy this here each the time so that */ |
|
|
2394 | /* prev has the old value when the callback gets invoked */ |
|
|
2395 | w->prev = w->attr; |
|
|
2396 | ev_stat_stat (EV_A_ w); |
|
|
2397 | |
|
|
2398 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2399 | if ( |
|
|
2400 | w->prev.st_dev != w->attr.st_dev |
|
|
2401 | || w->prev.st_ino != w->attr.st_ino |
|
|
2402 | || w->prev.st_mode != w->attr.st_mode |
|
|
2403 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2404 | || w->prev.st_uid != w->attr.st_uid |
|
|
2405 | || w->prev.st_gid != w->attr.st_gid |
|
|
2406 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2407 | || w->prev.st_size != w->attr.st_size |
|
|
2408 | || w->prev.st_atime != w->attr.st_atime |
|
|
2409 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2410 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2411 | ) { |
|
|
2412 | #if EV_USE_INOTIFY |
|
|
2413 | infy_del (EV_A_ w); |
|
|
2414 | infy_add (EV_A_ w); |
|
|
2415 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2416 | #endif |
|
|
2417 | |
|
|
2418 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2419 | } |
|
|
2420 | } |
|
|
2421 | |
|
|
2422 | void |
|
|
2423 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2424 | { |
|
|
2425 | if (expect_false (ev_is_active (w))) |
|
|
2426 | return; |
|
|
2427 | |
|
|
2428 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2429 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2430 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2431 | |
|
|
2432 | ev_stat_stat (EV_A_ w); |
|
|
2433 | |
|
|
2434 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2435 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2436 | |
|
|
2437 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2438 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2439 | |
|
|
2440 | #if EV_USE_INOTIFY |
|
|
2441 | infy_init (EV_A); |
|
|
2442 | |
|
|
2443 | if (fs_fd >= 0) |
|
|
2444 | infy_add (EV_A_ w); |
|
|
2445 | else |
|
|
2446 | #endif |
|
|
2447 | ev_timer_start (EV_A_ &w->timer); |
|
|
2448 | |
|
|
2449 | ev_start (EV_A_ (W)w, 1); |
|
|
2450 | } |
|
|
2451 | |
|
|
2452 | void |
|
|
2453 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2454 | { |
|
|
2455 | clear_pending (EV_A_ (W)w); |
|
|
2456 | if (expect_false (!ev_is_active (w))) |
|
|
2457 | return; |
|
|
2458 | |
|
|
2459 | #if EV_USE_INOTIFY |
|
|
2460 | infy_del (EV_A_ w); |
|
|
2461 | #endif |
|
|
2462 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2463 | |
|
|
2464 | ev_stop (EV_A_ (W)w); |
|
|
2465 | } |
|
|
2466 | #endif |
|
|
2467 | |
|
|
2468 | #if EV_IDLE_ENABLE |
|
|
2469 | void |
|
|
2470 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2471 | { |
|
|
2472 | if (expect_false (ev_is_active (w))) |
|
|
2473 | return; |
|
|
2474 | |
|
|
2475 | pri_adjust (EV_A_ (W)w); |
|
|
2476 | |
|
|
2477 | { |
|
|
2478 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2479 | |
|
|
2480 | ++idleall; |
|
|
2481 | ev_start (EV_A_ (W)w, active); |
|
|
2482 | |
|
|
2483 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2484 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2485 | } |
|
|
2486 | } |
|
|
2487 | |
|
|
2488 | void |
|
|
2489 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2490 | { |
|
|
2491 | clear_pending (EV_A_ (W)w); |
|
|
2492 | if (expect_false (!ev_is_active (w))) |
|
|
2493 | return; |
|
|
2494 | |
|
|
2495 | { |
|
|
2496 | int active = ev_active (w); |
|
|
2497 | |
|
|
2498 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2499 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
2500 | |
|
|
2501 | ev_stop (EV_A_ (W)w); |
|
|
2502 | --idleall; |
|
|
2503 | } |
|
|
2504 | } |
|
|
2505 | #endif |
|
|
2506 | |
|
|
2507 | void |
|
|
2508 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2509 | { |
|
|
2510 | if (expect_false (ev_is_active (w))) |
|
|
2511 | return; |
|
|
2512 | |
|
|
2513 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2514 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2515 | prepares [preparecnt - 1] = w; |
|
|
2516 | } |
|
|
2517 | |
|
|
2518 | void |
|
|
2519 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2520 | { |
|
|
2521 | clear_pending (EV_A_ (W)w); |
|
|
2522 | if (expect_false (!ev_is_active (w))) |
|
|
2523 | return; |
|
|
2524 | |
|
|
2525 | { |
|
|
2526 | int active = ev_active (w); |
|
|
2527 | |
|
|
2528 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2529 | ev_active (prepares [active - 1]) = active; |
|
|
2530 | } |
|
|
2531 | |
|
|
2532 | ev_stop (EV_A_ (W)w); |
|
|
2533 | } |
|
|
2534 | |
|
|
2535 | void |
|
|
2536 | ev_check_start (EV_P_ ev_check *w) |
|
|
2537 | { |
|
|
2538 | if (expect_false (ev_is_active (w))) |
|
|
2539 | return; |
|
|
2540 | |
|
|
2541 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2542 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2543 | checks [checkcnt - 1] = w; |
|
|
2544 | } |
|
|
2545 | |
|
|
2546 | void |
|
|
2547 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2548 | { |
|
|
2549 | clear_pending (EV_A_ (W)w); |
|
|
2550 | if (expect_false (!ev_is_active (w))) |
|
|
2551 | return; |
|
|
2552 | |
|
|
2553 | { |
|
|
2554 | int active = ev_active (w); |
|
|
2555 | |
|
|
2556 | checks [active - 1] = checks [--checkcnt]; |
|
|
2557 | ev_active (checks [active - 1]) = active; |
|
|
2558 | } |
|
|
2559 | |
|
|
2560 | ev_stop (EV_A_ (W)w); |
|
|
2561 | } |
|
|
2562 | |
|
|
2563 | #if EV_EMBED_ENABLE |
|
|
2564 | void noinline |
|
|
2565 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2566 | { |
|
|
2567 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2568 | } |
|
|
2569 | |
|
|
2570 | static void |
|
|
2571 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2572 | { |
|
|
2573 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2574 | |
|
|
2575 | if (ev_cb (w)) |
|
|
2576 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2577 | else |
|
|
2578 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2579 | } |
|
|
2580 | |
|
|
2581 | static void |
|
|
2582 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2583 | { |
|
|
2584 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2585 | |
|
|
2586 | { |
|
|
2587 | struct ev_loop *loop = w->other; |
|
|
2588 | |
|
|
2589 | while (fdchangecnt) |
|
|
2590 | { |
|
|
2591 | fd_reify (EV_A); |
|
|
2592 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2593 | } |
|
|
2594 | } |
|
|
2595 | } |
|
|
2596 | |
|
|
2597 | #if 0 |
|
|
2598 | static void |
|
|
2599 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2600 | { |
|
|
2601 | ev_idle_stop (EV_A_ idle); |
|
|
2602 | } |
|
|
2603 | #endif |
|
|
2604 | |
|
|
2605 | void |
|
|
2606 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2607 | { |
|
|
2608 | if (expect_false (ev_is_active (w))) |
|
|
2609 | return; |
|
|
2610 | |
|
|
2611 | { |
|
|
2612 | struct ev_loop *loop = w->other; |
|
|
2613 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2614 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2615 | } |
|
|
2616 | |
|
|
2617 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2618 | ev_io_start (EV_A_ &w->io); |
|
|
2619 | |
|
|
2620 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2621 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2622 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2623 | |
|
|
2624 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2625 | |
|
|
2626 | ev_start (EV_A_ (W)w, 1); |
|
|
2627 | } |
|
|
2628 | |
|
|
2629 | void |
|
|
2630 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2631 | { |
|
|
2632 | clear_pending (EV_A_ (W)w); |
|
|
2633 | if (expect_false (!ev_is_active (w))) |
|
|
2634 | return; |
|
|
2635 | |
|
|
2636 | ev_io_stop (EV_A_ &w->io); |
|
|
2637 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2638 | |
|
|
2639 | ev_stop (EV_A_ (W)w); |
|
|
2640 | } |
|
|
2641 | #endif |
|
|
2642 | |
|
|
2643 | #if EV_FORK_ENABLE |
|
|
2644 | void |
|
|
2645 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2646 | { |
|
|
2647 | if (expect_false (ev_is_active (w))) |
|
|
2648 | return; |
|
|
2649 | |
|
|
2650 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2651 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2652 | forks [forkcnt - 1] = w; |
|
|
2653 | } |
|
|
2654 | |
|
|
2655 | void |
|
|
2656 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2657 | { |
|
|
2658 | clear_pending (EV_A_ (W)w); |
|
|
2659 | if (expect_false (!ev_is_active (w))) |
|
|
2660 | return; |
|
|
2661 | |
|
|
2662 | { |
|
|
2663 | int active = ev_active (w); |
|
|
2664 | |
|
|
2665 | forks [active - 1] = forks [--forkcnt]; |
|
|
2666 | ev_active (forks [active - 1]) = active; |
|
|
2667 | } |
|
|
2668 | |
|
|
2669 | ev_stop (EV_A_ (W)w); |
|
|
2670 | } |
|
|
2671 | #endif |
|
|
2672 | |
|
|
2673 | #if EV_ASYNC_ENABLE |
|
|
2674 | void |
|
|
2675 | ev_async_start (EV_P_ ev_async *w) |
|
|
2676 | { |
|
|
2677 | if (expect_false (ev_is_active (w))) |
|
|
2678 | return; |
|
|
2679 | |
|
|
2680 | evpipe_init (EV_A); |
|
|
2681 | |
|
|
2682 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2683 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2684 | asyncs [asynccnt - 1] = w; |
|
|
2685 | } |
|
|
2686 | |
|
|
2687 | void |
|
|
2688 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2689 | { |
|
|
2690 | clear_pending (EV_A_ (W)w); |
|
|
2691 | if (expect_false (!ev_is_active (w))) |
|
|
2692 | return; |
|
|
2693 | |
|
|
2694 | { |
|
|
2695 | int active = ev_active (w); |
|
|
2696 | |
|
|
2697 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2698 | ev_active (asyncs [active - 1]) = active; |
|
|
2699 | } |
|
|
2700 | |
|
|
2701 | ev_stop (EV_A_ (W)w); |
|
|
2702 | } |
|
|
2703 | |
|
|
2704 | void |
|
|
2705 | ev_async_send (EV_P_ ev_async *w) |
|
|
2706 | { |
|
|
2707 | w->sent = 1; |
|
|
2708 | evpipe_write (EV_A_ &gotasync); |
|
|
2709 | } |
|
|
2710 | #endif |
|
|
2711 | |
1565 | /*****************************************************************************/ |
2712 | /*****************************************************************************/ |
1566 | |
2713 | |
1567 | struct ev_once |
2714 | struct ev_once |
1568 | { |
2715 | { |
1569 | struct ev_io io; |
2716 | ev_io io; |
1570 | struct ev_timer to; |
2717 | ev_timer to; |
1571 | void (*cb)(int revents, void *arg); |
2718 | void (*cb)(int revents, void *arg); |
1572 | void *arg; |
2719 | void *arg; |
1573 | }; |
2720 | }; |
1574 | |
2721 | |
1575 | static void |
2722 | static void |
… | |
… | |
1584 | |
2731 | |
1585 | cb (revents, arg); |
2732 | cb (revents, arg); |
1586 | } |
2733 | } |
1587 | |
2734 | |
1588 | static void |
2735 | static void |
1589 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2736 | once_cb_io (EV_P_ ev_io *w, int revents) |
1590 | { |
2737 | { |
1591 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2738 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1592 | } |
2739 | } |
1593 | |
2740 | |
1594 | static void |
2741 | static void |
1595 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2742 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1596 | { |
2743 | { |
1597 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2744 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1598 | } |
2745 | } |
1599 | |
2746 | |
1600 | void |
2747 | void |
1601 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2748 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1602 | { |
2749 | { |
1603 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2750 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1604 | |
2751 | |
1605 | if (!once) |
2752 | if (expect_false (!once)) |
|
|
2753 | { |
1606 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2754 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1607 | else |
2755 | return; |
1608 | { |
2756 | } |
|
|
2757 | |
1609 | once->cb = cb; |
2758 | once->cb = cb; |
1610 | once->arg = arg; |
2759 | once->arg = arg; |
1611 | |
2760 | |
1612 | ev_init (&once->io, once_cb_io); |
2761 | ev_init (&once->io, once_cb_io); |
1613 | if (fd >= 0) |
2762 | if (fd >= 0) |
1614 | { |
2763 | { |
1615 | ev_io_set (&once->io, fd, events); |
2764 | ev_io_set (&once->io, fd, events); |
1616 | ev_io_start (EV_A_ &once->io); |
2765 | ev_io_start (EV_A_ &once->io); |
1617 | } |
2766 | } |
1618 | |
2767 | |
1619 | ev_init (&once->to, once_cb_to); |
2768 | ev_init (&once->to, once_cb_to); |
1620 | if (timeout >= 0.) |
2769 | if (timeout >= 0.) |
1621 | { |
2770 | { |
1622 | ev_timer_set (&once->to, timeout, 0.); |
2771 | ev_timer_set (&once->to, timeout, 0.); |
1623 | ev_timer_start (EV_A_ &once->to); |
2772 | ev_timer_start (EV_A_ &once->to); |
1624 | } |
|
|
1625 | } |
2773 | } |
1626 | } |
2774 | } |
|
|
2775 | |
|
|
2776 | #if EV_MULTIPLICITY |
|
|
2777 | #include "ev_wrap.h" |
|
|
2778 | #endif |
1627 | |
2779 | |
1628 | #ifdef __cplusplus |
2780 | #ifdef __cplusplus |
1629 | } |
2781 | } |
1630 | #endif |
2782 | #endif |
1631 | |
2783 | |