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 | */ |
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39 | |
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40 | #ifdef __cplusplus |
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41 | extern "C" { |
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42 | #endif |
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43 | |
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44 | /* this big block deduces configuration from config.h */ |
31 | #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 |
32 | # include "config.h" |
49 | # include "config.h" |
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50 | # endif |
33 | |
51 | |
34 | # if HAVE_CLOCK_GETTIME |
52 | # if HAVE_CLOCK_GETTIME |
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53 | # ifndef EV_USE_MONOTONIC |
35 | # define EV_USE_MONOTONIC 1 |
54 | # define EV_USE_MONOTONIC 1 |
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55 | # endif |
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56 | # ifndef EV_USE_REALTIME |
36 | # define EV_USE_REALTIME 1 |
57 | # define EV_USE_REALTIME 1 |
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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 |
37 | # endif |
66 | # endif |
38 | |
67 | |
39 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
68 | # ifndef EV_USE_NANOSLEEP |
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69 | # if HAVE_NANOSLEEP |
40 | # 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 |
41 | # endif |
74 | # endif |
42 | |
75 | |
43 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
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77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
44 | # 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 |
45 | # endif |
82 | # endif |
46 | |
83 | |
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
84 | # ifndef EV_USE_POLL |
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85 | # if HAVE_POLL && HAVE_POLL_H |
48 | # 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 |
49 | # endif |
90 | # endif |
50 | |
91 | |
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
92 | # ifndef EV_USE_EPOLL |
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93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
52 | # 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 |
53 | # 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 |
54 | |
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 | |
55 | #endif |
132 | #endif |
56 | |
133 | |
57 | #include <math.h> |
134 | #include <math.h> |
58 | #include <stdlib.h> |
135 | #include <stdlib.h> |
59 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
66 | #include <sys/types.h> |
143 | #include <sys/types.h> |
67 | #include <time.h> |
144 | #include <time.h> |
68 | |
145 | |
69 | #include <signal.h> |
146 | #include <signal.h> |
70 | |
147 | |
71 | #ifndef WIN32 |
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72 | # include <unistd.h> |
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73 | # include <sys/time.h> |
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74 | # include <sys/wait.h> |
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75 | #endif |
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76 | /**/ |
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77 | |
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78 | #ifndef EV_USE_MONOTONIC |
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79 | # define EV_USE_MONOTONIC 1 |
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80 | #endif |
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81 | |
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82 | #ifndef EV_USE_SELECT |
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83 | # define EV_USE_SELECT 1 |
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84 | #endif |
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85 | |
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86 | #ifndef EV_USE_POLL |
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87 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
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88 | #endif |
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89 | |
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90 | #ifndef EV_USE_EPOLL |
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91 | # define EV_USE_EPOLL 0 |
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92 | #endif |
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93 | |
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94 | #ifndef EV_USE_KQUEUE |
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95 | # define EV_USE_KQUEUE 0 |
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96 | #endif |
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97 | |
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98 | #ifndef EV_USE_WIN32 |
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99 | # ifdef WIN32 |
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100 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
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101 | # undef EV_USE_SELECT |
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102 | # define EV_USE_SELECT 1 |
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103 | # else |
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104 | # define EV_USE_WIN32 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_REALTIME |
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109 | # define EV_USE_REALTIME 1 |
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110 | #endif |
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111 | |
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112 | /**/ |
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113 | |
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114 | #ifndef CLOCK_MONOTONIC |
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115 | # undef EV_USE_MONOTONIC |
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116 | # define EV_USE_MONOTONIC 0 |
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117 | #endif |
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118 | |
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119 | #ifndef CLOCK_REALTIME |
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120 | # undef EV_USE_REALTIME |
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121 | # define EV_USE_REALTIME 0 |
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122 | #endif |
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123 | |
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124 | /**/ |
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125 | |
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126 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
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127 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
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128 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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129 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
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130 | |
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131 | #ifdef EV_H |
148 | #ifdef EV_H |
132 | # include EV_H |
149 | # include EV_H |
133 | #else |
150 | #else |
134 | # include "ev.h" |
151 | # include "ev.h" |
135 | #endif |
152 | #endif |
136 | |
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 | |
137 | #if __GNUC__ >= 3 |
299 | #if __GNUC__ >= 4 |
138 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
139 | # define inline inline |
301 | # define noinline __attribute__ ((noinline)) |
140 | #else |
302 | #else |
141 | # define expect(expr,value) (expr) |
303 | # define expect(expr,value) (expr) |
142 | # define inline static |
304 | # define noinline |
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305 | # if __STDC_VERSION__ < 199901L |
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306 | # define inline |
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307 | # endif |
143 | #endif |
308 | #endif |
144 | |
309 | |
145 | #define expect_false(expr) expect ((expr) != 0, 0) |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
146 | #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 |
147 | |
319 | |
148 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
149 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
150 | |
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 | |
151 | typedef struct ev_watcher *W; |
326 | typedef ev_watcher *W; |
152 | typedef struct ev_watcher_list *WL; |
327 | typedef ev_watcher_list *WL; |
153 | typedef struct ev_watcher_time *WT; |
328 | typedef ev_watcher_time *WT; |
154 | |
329 | |
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330 | #if EV_USE_MONOTONIC |
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331 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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332 | /* giving it a reasonably high chance of working on typical architetcures */ |
155 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
333 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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334 | #endif |
156 | |
335 | |
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336 | #ifdef _WIN32 |
157 | #include "ev_win32.c" |
337 | # include "ev_win32.c" |
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338 | #endif |
158 | |
339 | |
159 | /*****************************************************************************/ |
340 | /*****************************************************************************/ |
160 | |
341 | |
161 | static void (*syserr_cb)(const char *msg); |
342 | static void (*syserr_cb)(const char *msg); |
162 | |
343 | |
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344 | void |
163 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
345 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
164 | { |
346 | { |
165 | syserr_cb = cb; |
347 | syserr_cb = cb; |
166 | } |
348 | } |
167 | |
349 | |
168 | static void |
350 | static void noinline |
169 | syserr (const char *msg) |
351 | syserr (const char *msg) |
170 | { |
352 | { |
171 | if (!msg) |
353 | if (!msg) |
172 | msg = "(libev) system error"; |
354 | msg = "(libev) system error"; |
173 | |
355 | |
… | |
… | |
180 | } |
362 | } |
181 | } |
363 | } |
182 | |
364 | |
183 | static void *(*alloc)(void *ptr, long size); |
365 | static void *(*alloc)(void *ptr, long size); |
184 | |
366 | |
|
|
367 | void |
185 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
368 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
186 | { |
369 | { |
187 | alloc = cb; |
370 | alloc = cb; |
188 | } |
371 | } |
189 | |
372 | |
190 | static void * |
373 | inline_speed void * |
191 | ev_realloc (void *ptr, long size) |
374 | ev_realloc (void *ptr, long size) |
192 | { |
375 | { |
193 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
376 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
194 | |
377 | |
195 | if (!ptr && size) |
378 | if (!ptr && size) |
… | |
… | |
209 | typedef struct |
392 | typedef struct |
210 | { |
393 | { |
211 | WL head; |
394 | WL head; |
212 | unsigned char events; |
395 | unsigned char events; |
213 | unsigned char reify; |
396 | unsigned char reify; |
|
|
397 | #if EV_SELECT_IS_WINSOCKET |
|
|
398 | SOCKET handle; |
|
|
399 | #endif |
214 | } ANFD; |
400 | } ANFD; |
215 | |
401 | |
216 | typedef struct |
402 | typedef struct |
217 | { |
403 | { |
218 | W w; |
404 | W w; |
219 | int events; |
405 | int events; |
220 | } ANPENDING; |
406 | } ANPENDING; |
221 | |
407 | |
|
|
408 | #if EV_USE_INOTIFY |
|
|
409 | typedef struct |
|
|
410 | { |
|
|
411 | WL head; |
|
|
412 | } ANFS; |
|
|
413 | #endif |
|
|
414 | |
222 | #if EV_MULTIPLICITY |
415 | #if EV_MULTIPLICITY |
223 | |
416 | |
224 | struct ev_loop |
417 | struct ev_loop |
225 | { |
418 | { |
226 | ev_tstamp ev_rt_now; |
419 | ev_tstamp ev_rt_now; |
|
|
420 | #define ev_rt_now ((loop)->ev_rt_now) |
227 | #define VAR(name,decl) decl; |
421 | #define VAR(name,decl) decl; |
228 | #include "ev_vars.h" |
422 | #include "ev_vars.h" |
229 | #undef VAR |
423 | #undef VAR |
230 | }; |
424 | }; |
231 | #include "ev_wrap.h" |
425 | #include "ev_wrap.h" |
232 | |
426 | |
233 | struct ev_loop default_loop_struct; |
427 | static struct ev_loop default_loop_struct; |
234 | static struct ev_loop *default_loop; |
428 | struct ev_loop *ev_default_loop_ptr; |
235 | |
429 | |
236 | #else |
430 | #else |
237 | |
431 | |
238 | ev_tstamp ev_rt_now; |
432 | ev_tstamp ev_rt_now; |
239 | #define VAR(name,decl) static decl; |
433 | #define VAR(name,decl) static decl; |
240 | #include "ev_vars.h" |
434 | #include "ev_vars.h" |
241 | #undef VAR |
435 | #undef VAR |
242 | |
436 | |
243 | static int default_loop; |
437 | static int ev_default_loop_ptr; |
244 | |
438 | |
245 | #endif |
439 | #endif |
246 | |
440 | |
247 | /*****************************************************************************/ |
441 | /*****************************************************************************/ |
248 | |
442 | |
249 | inline ev_tstamp |
443 | ev_tstamp |
250 | ev_time (void) |
444 | ev_time (void) |
251 | { |
445 | { |
252 | #if EV_USE_REALTIME |
446 | #if EV_USE_REALTIME |
253 | struct timespec ts; |
447 | struct timespec ts; |
254 | clock_gettime (CLOCK_REALTIME, &ts); |
448 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
258 | gettimeofday (&tv, 0); |
452 | gettimeofday (&tv, 0); |
259 | return tv.tv_sec + tv.tv_usec * 1e-6; |
453 | return tv.tv_sec + tv.tv_usec * 1e-6; |
260 | #endif |
454 | #endif |
261 | } |
455 | } |
262 | |
456 | |
263 | inline ev_tstamp |
457 | ev_tstamp inline_size |
264 | get_clock (void) |
458 | get_clock (void) |
265 | { |
459 | { |
266 | #if EV_USE_MONOTONIC |
460 | #if EV_USE_MONOTONIC |
267 | if (expect_true (have_monotonic)) |
461 | if (expect_true (have_monotonic)) |
268 | { |
462 | { |
… | |
… | |
281 | { |
475 | { |
282 | return ev_rt_now; |
476 | return ev_rt_now; |
283 | } |
477 | } |
284 | #endif |
478 | #endif |
285 | |
479 | |
286 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
480 | void |
|
|
481 | ev_sleep (ev_tstamp delay) |
|
|
482 | { |
|
|
483 | if (delay > 0.) |
|
|
484 | { |
|
|
485 | #if EV_USE_NANOSLEEP |
|
|
486 | struct timespec ts; |
|
|
487 | |
|
|
488 | ts.tv_sec = (time_t)delay; |
|
|
489 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
490 | |
|
|
491 | nanosleep (&ts, 0); |
|
|
492 | #elif defined(_WIN32) |
|
|
493 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
494 | #else |
|
|
495 | struct timeval tv; |
|
|
496 | |
|
|
497 | tv.tv_sec = (time_t)delay; |
|
|
498 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
499 | |
|
|
500 | select (0, 0, 0, 0, &tv); |
|
|
501 | #endif |
|
|
502 | } |
|
|
503 | } |
|
|
504 | |
|
|
505 | /*****************************************************************************/ |
|
|
506 | |
|
|
507 | int inline_size |
|
|
508 | array_nextsize (int elem, int cur, int cnt) |
|
|
509 | { |
|
|
510 | int ncur = cur + 1; |
|
|
511 | |
|
|
512 | do |
|
|
513 | ncur <<= 1; |
|
|
514 | while (cnt > ncur); |
|
|
515 | |
|
|
516 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
517 | if (elem * ncur > 4096) |
|
|
518 | { |
|
|
519 | ncur *= elem; |
|
|
520 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
521 | ncur = ncur - sizeof (void *) * 4; |
|
|
522 | ncur /= elem; |
|
|
523 | } |
|
|
524 | |
|
|
525 | return ncur; |
|
|
526 | } |
|
|
527 | |
|
|
528 | static noinline void * |
|
|
529 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
530 | { |
|
|
531 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
532 | return ev_realloc (base, elem * *cur); |
|
|
533 | } |
287 | |
534 | |
288 | #define array_needsize(type,base,cur,cnt,init) \ |
535 | #define array_needsize(type,base,cur,cnt,init) \ |
289 | if (expect_false ((cnt) > cur)) \ |
536 | if (expect_false ((cnt) > (cur))) \ |
290 | { \ |
537 | { \ |
291 | int newcnt = cur; \ |
538 | int ocur_ = (cur); \ |
292 | do \ |
539 | (base) = (type *)array_realloc \ |
293 | { \ |
540 | (sizeof (type), (base), &(cur), (cnt)); \ |
294 | newcnt = array_roundsize (type, newcnt << 1); \ |
541 | init ((base) + (ocur_), (cur) - ocur_); \ |
295 | } \ |
|
|
296 | while ((cnt) > newcnt); \ |
|
|
297 | \ |
|
|
298 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
299 | init (base + cur, newcnt - cur); \ |
|
|
300 | cur = newcnt; \ |
|
|
301 | } |
542 | } |
302 | |
543 | |
|
|
544 | #if 0 |
303 | #define array_slim(type,stem) \ |
545 | #define array_slim(type,stem) \ |
304 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
546 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
305 | { \ |
547 | { \ |
306 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
548 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
307 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
549 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
308 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
550 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
309 | } |
551 | } |
310 | |
552 | #endif |
311 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
312 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
313 | #define array_free_microshit(stem) \ |
|
|
314 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
315 | |
553 | |
316 | #define array_free(stem, idx) \ |
554 | #define array_free(stem, idx) \ |
317 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
555 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
318 | |
556 | |
319 | /*****************************************************************************/ |
557 | /*****************************************************************************/ |
320 | |
558 | |
321 | static void |
559 | void noinline |
|
|
560 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
561 | { |
|
|
562 | W w_ = (W)w; |
|
|
563 | int pri = ABSPRI (w_); |
|
|
564 | |
|
|
565 | if (expect_false (w_->pending)) |
|
|
566 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
567 | else |
|
|
568 | { |
|
|
569 | w_->pending = ++pendingcnt [pri]; |
|
|
570 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
571 | pendings [pri][w_->pending - 1].w = w_; |
|
|
572 | pendings [pri][w_->pending - 1].events = revents; |
|
|
573 | } |
|
|
574 | } |
|
|
575 | |
|
|
576 | void inline_speed |
|
|
577 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
578 | { |
|
|
579 | int i; |
|
|
580 | |
|
|
581 | for (i = 0; i < eventcnt; ++i) |
|
|
582 | ev_feed_event (EV_A_ events [i], type); |
|
|
583 | } |
|
|
584 | |
|
|
585 | /*****************************************************************************/ |
|
|
586 | |
|
|
587 | void inline_size |
322 | anfds_init (ANFD *base, int count) |
588 | anfds_init (ANFD *base, int count) |
323 | { |
589 | { |
324 | while (count--) |
590 | while (count--) |
325 | { |
591 | { |
326 | base->head = 0; |
592 | base->head = 0; |
… | |
… | |
329 | |
595 | |
330 | ++base; |
596 | ++base; |
331 | } |
597 | } |
332 | } |
598 | } |
333 | |
599 | |
334 | void |
600 | void inline_speed |
335 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
336 | { |
|
|
337 | W w_ = (W)w; |
|
|
338 | |
|
|
339 | if (w_->pending) |
|
|
340 | { |
|
|
341 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
342 | return; |
|
|
343 | } |
|
|
344 | |
|
|
345 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
346 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
|
|
347 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
348 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
349 | } |
|
|
350 | |
|
|
351 | static void |
|
|
352 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
353 | { |
|
|
354 | int i; |
|
|
355 | |
|
|
356 | for (i = 0; i < eventcnt; ++i) |
|
|
357 | ev_feed_event (EV_A_ events [i], type); |
|
|
358 | } |
|
|
359 | |
|
|
360 | inline void |
|
|
361 | fd_event (EV_P_ int fd, int revents) |
601 | fd_event (EV_P_ int fd, int revents) |
362 | { |
602 | { |
363 | ANFD *anfd = anfds + fd; |
603 | ANFD *anfd = anfds + fd; |
364 | struct ev_io *w; |
604 | ev_io *w; |
365 | |
605 | |
366 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
606 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
367 | { |
607 | { |
368 | int ev = w->events & revents; |
608 | int ev = w->events & revents; |
369 | |
609 | |
370 | if (ev) |
610 | if (ev) |
371 | ev_feed_event (EV_A_ (W)w, ev); |
611 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
373 | } |
613 | } |
374 | |
614 | |
375 | void |
615 | void |
376 | ev_feed_fd_event (EV_P_ int fd, int revents) |
616 | ev_feed_fd_event (EV_P_ int fd, int revents) |
377 | { |
617 | { |
|
|
618 | if (fd >= 0 && fd < anfdmax) |
378 | fd_event (EV_A_ fd, revents); |
619 | fd_event (EV_A_ fd, revents); |
379 | } |
620 | } |
380 | |
621 | |
381 | /*****************************************************************************/ |
622 | void inline_size |
382 | |
|
|
383 | static void |
|
|
384 | fd_reify (EV_P) |
623 | fd_reify (EV_P) |
385 | { |
624 | { |
386 | int i; |
625 | int i; |
387 | |
626 | |
388 | for (i = 0; i < fdchangecnt; ++i) |
627 | for (i = 0; i < fdchangecnt; ++i) |
389 | { |
628 | { |
390 | int fd = fdchanges [i]; |
629 | int fd = fdchanges [i]; |
391 | ANFD *anfd = anfds + fd; |
630 | ANFD *anfd = anfds + fd; |
392 | struct ev_io *w; |
631 | ev_io *w; |
393 | |
632 | |
394 | int events = 0; |
633 | unsigned char events = 0; |
395 | |
634 | |
396 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
635 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
397 | events |= w->events; |
636 | events |= (unsigned char)w->events; |
398 | |
637 | |
|
|
638 | #if EV_SELECT_IS_WINSOCKET |
|
|
639 | if (events) |
|
|
640 | { |
|
|
641 | unsigned long argp; |
|
|
642 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
643 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
644 | #else |
|
|
645 | anfd->handle = _get_osfhandle (fd); |
|
|
646 | #endif |
|
|
647 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
648 | } |
|
|
649 | #endif |
|
|
650 | |
|
|
651 | { |
|
|
652 | unsigned char o_events = anfd->events; |
|
|
653 | unsigned char o_reify = anfd->reify; |
|
|
654 | |
399 | anfd->reify = 0; |
655 | anfd->reify = 0; |
400 | |
|
|
401 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
402 | anfd->events = events; |
656 | anfd->events = events; |
|
|
657 | |
|
|
658 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
659 | backend_modify (EV_A_ fd, o_events, events); |
|
|
660 | } |
403 | } |
661 | } |
404 | |
662 | |
405 | fdchangecnt = 0; |
663 | fdchangecnt = 0; |
406 | } |
664 | } |
407 | |
665 | |
408 | static void |
666 | void inline_size |
409 | fd_change (EV_P_ int fd) |
667 | fd_change (EV_P_ int fd, int flags) |
410 | { |
668 | { |
411 | if (anfds [fd].reify) |
669 | unsigned char reify = anfds [fd].reify; |
412 | return; |
|
|
413 | |
|
|
414 | anfds [fd].reify = 1; |
670 | anfds [fd].reify |= flags; |
415 | |
671 | |
|
|
672 | if (expect_true (!reify)) |
|
|
673 | { |
416 | ++fdchangecnt; |
674 | ++fdchangecnt; |
417 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
675 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
418 | fdchanges [fdchangecnt - 1] = fd; |
676 | fdchanges [fdchangecnt - 1] = fd; |
|
|
677 | } |
419 | } |
678 | } |
420 | |
679 | |
421 | static void |
680 | void inline_speed |
422 | fd_kill (EV_P_ int fd) |
681 | fd_kill (EV_P_ int fd) |
423 | { |
682 | { |
424 | struct ev_io *w; |
683 | ev_io *w; |
425 | |
684 | |
426 | while ((w = (struct ev_io *)anfds [fd].head)) |
685 | while ((w = (ev_io *)anfds [fd].head)) |
427 | { |
686 | { |
428 | ev_io_stop (EV_A_ w); |
687 | ev_io_stop (EV_A_ w); |
429 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
688 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
430 | } |
689 | } |
431 | } |
690 | } |
432 | |
691 | |
433 | static int |
692 | int inline_size |
434 | fd_valid (int fd) |
693 | fd_valid (int fd) |
435 | { |
694 | { |
436 | #ifdef WIN32 |
695 | #ifdef _WIN32 |
437 | return !!win32_get_osfhandle (fd); |
696 | return _get_osfhandle (fd) != -1; |
438 | #else |
697 | #else |
439 | return fcntl (fd, F_GETFD) != -1; |
698 | return fcntl (fd, F_GETFD) != -1; |
440 | #endif |
699 | #endif |
441 | } |
700 | } |
442 | |
701 | |
443 | /* called on EBADF to verify fds */ |
702 | /* called on EBADF to verify fds */ |
444 | static void |
703 | static void noinline |
445 | fd_ebadf (EV_P) |
704 | fd_ebadf (EV_P) |
446 | { |
705 | { |
447 | int fd; |
706 | int fd; |
448 | |
707 | |
449 | for (fd = 0; fd < anfdmax; ++fd) |
708 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
451 | if (!fd_valid (fd) == -1 && errno == EBADF) |
710 | if (!fd_valid (fd) == -1 && errno == EBADF) |
452 | fd_kill (EV_A_ fd); |
711 | fd_kill (EV_A_ fd); |
453 | } |
712 | } |
454 | |
713 | |
455 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
714 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
456 | static void |
715 | static void noinline |
457 | fd_enomem (EV_P) |
716 | fd_enomem (EV_P) |
458 | { |
717 | { |
459 | int fd; |
718 | int fd; |
460 | |
719 | |
461 | for (fd = anfdmax; fd--; ) |
720 | for (fd = anfdmax; fd--; ) |
… | |
… | |
464 | fd_kill (EV_A_ fd); |
723 | fd_kill (EV_A_ fd); |
465 | return; |
724 | return; |
466 | } |
725 | } |
467 | } |
726 | } |
468 | |
727 | |
469 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
728 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
470 | static void |
729 | static void noinline |
471 | fd_rearm_all (EV_P) |
730 | fd_rearm_all (EV_P) |
472 | { |
731 | { |
473 | int fd; |
732 | int fd; |
474 | |
733 | |
475 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
476 | for (fd = 0; fd < anfdmax; ++fd) |
734 | for (fd = 0; fd < anfdmax; ++fd) |
477 | if (anfds [fd].events) |
735 | if (anfds [fd].events) |
478 | { |
736 | { |
479 | anfds [fd].events = 0; |
737 | anfds [fd].events = 0; |
480 | fd_change (EV_A_ fd); |
738 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
481 | } |
739 | } |
482 | } |
740 | } |
483 | |
741 | |
484 | /*****************************************************************************/ |
742 | /*****************************************************************************/ |
485 | |
743 | |
486 | static void |
744 | void inline_speed |
487 | upheap (WT *heap, int k) |
745 | upheap (WT *heap, int k) |
488 | { |
746 | { |
489 | WT w = heap [k]; |
747 | WT w = heap [k]; |
490 | |
748 | |
491 | while (k && heap [k >> 1]->at > w->at) |
749 | while (k) |
492 | { |
750 | { |
|
|
751 | int p = (k - 1) >> 1; |
|
|
752 | |
|
|
753 | if (heap [p]->at <= w->at) |
|
|
754 | break; |
|
|
755 | |
493 | heap [k] = heap [k >> 1]; |
756 | heap [k] = heap [p]; |
494 | ((W)heap [k])->active = k + 1; |
757 | ((W)heap [k])->active = k + 1; |
495 | k >>= 1; |
758 | k = p; |
496 | } |
759 | } |
497 | |
760 | |
498 | heap [k] = w; |
761 | heap [k] = w; |
499 | ((W)heap [k])->active = k + 1; |
762 | ((W)heap [k])->active = k + 1; |
500 | |
|
|
501 | } |
763 | } |
502 | |
764 | |
503 | static void |
765 | void inline_speed |
504 | downheap (WT *heap, int N, int k) |
766 | downheap (WT *heap, int N, int k) |
505 | { |
767 | { |
506 | WT w = heap [k]; |
768 | WT w = heap [k]; |
507 | |
769 | |
508 | while (k < (N >> 1)) |
770 | for (;;) |
509 | { |
771 | { |
510 | int j = k << 1; |
772 | int c = (k << 1) + 1; |
511 | |
773 | |
512 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
774 | if (c >= N) |
513 | ++j; |
|
|
514 | |
|
|
515 | if (w->at <= heap [j]->at) |
|
|
516 | break; |
775 | break; |
517 | |
776 | |
|
|
777 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
778 | ? 1 : 0; |
|
|
779 | |
|
|
780 | if (w->at <= heap [c]->at) |
|
|
781 | break; |
|
|
782 | |
518 | heap [k] = heap [j]; |
783 | heap [k] = heap [c]; |
519 | ((W)heap [k])->active = k + 1; |
784 | ((W)heap [k])->active = k + 1; |
|
|
785 | |
520 | k = j; |
786 | k = c; |
521 | } |
787 | } |
522 | |
788 | |
523 | heap [k] = w; |
789 | heap [k] = w; |
524 | ((W)heap [k])->active = k + 1; |
790 | ((W)heap [k])->active = k + 1; |
525 | } |
791 | } |
526 | |
792 | |
527 | inline void |
793 | void inline_size |
528 | adjustheap (WT *heap, int N, int k, ev_tstamp at) |
794 | adjustheap (WT *heap, int N, int k) |
529 | { |
795 | { |
530 | ev_tstamp old_at = heap [k]->at; |
796 | upheap (heap, k); |
531 | heap [k]->at = at; |
|
|
532 | |
|
|
533 | if (old_at < at) |
|
|
534 | downheap (heap, N, k); |
797 | downheap (heap, N, k); |
535 | else |
|
|
536 | upheap (heap, k); |
|
|
537 | } |
798 | } |
538 | |
799 | |
539 | /*****************************************************************************/ |
800 | /*****************************************************************************/ |
540 | |
801 | |
541 | typedef struct |
802 | typedef struct |
542 | { |
803 | { |
543 | WL head; |
804 | WL head; |
544 | sig_atomic_t volatile gotsig; |
805 | EV_ATOMIC_T gotsig; |
545 | } ANSIG; |
806 | } ANSIG; |
546 | |
807 | |
547 | static ANSIG *signals; |
808 | static ANSIG *signals; |
548 | static int signalmax; |
809 | static int signalmax; |
549 | |
810 | |
550 | static int sigpipe [2]; |
811 | static EV_ATOMIC_T gotsig; |
551 | static sig_atomic_t volatile gotsig; |
|
|
552 | static struct ev_io sigev; |
|
|
553 | |
812 | |
554 | static void |
813 | void inline_size |
555 | signals_init (ANSIG *base, int count) |
814 | signals_init (ANSIG *base, int count) |
556 | { |
815 | { |
557 | while (count--) |
816 | while (count--) |
558 | { |
817 | { |
559 | base->head = 0; |
818 | base->head = 0; |
… | |
… | |
561 | |
820 | |
562 | ++base; |
821 | ++base; |
563 | } |
822 | } |
564 | } |
823 | } |
565 | |
824 | |
|
|
825 | /*****************************************************************************/ |
|
|
826 | |
|
|
827 | void inline_speed |
|
|
828 | fd_intern (int fd) |
|
|
829 | { |
|
|
830 | #ifdef _WIN32 |
|
|
831 | int arg = 1; |
|
|
832 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
833 | #else |
|
|
834 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
835 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
836 | #endif |
|
|
837 | } |
|
|
838 | |
|
|
839 | static void noinline |
|
|
840 | evpipe_init (EV_P) |
|
|
841 | { |
|
|
842 | if (!ev_is_active (&pipeev)) |
|
|
843 | { |
|
|
844 | #if EV_USE_EVENTFD |
|
|
845 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
846 | { |
|
|
847 | evpipe [0] = -1; |
|
|
848 | fd_intern (evfd); |
|
|
849 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
850 | } |
|
|
851 | else |
|
|
852 | #endif |
|
|
853 | { |
|
|
854 | while (pipe (evpipe)) |
|
|
855 | syserr ("(libev) error creating signal/async pipe"); |
|
|
856 | |
|
|
857 | fd_intern (evpipe [0]); |
|
|
858 | fd_intern (evpipe [1]); |
|
|
859 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
860 | } |
|
|
861 | |
|
|
862 | ev_io_start (EV_A_ &pipeev); |
|
|
863 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
864 | } |
|
|
865 | } |
|
|
866 | |
|
|
867 | void inline_size |
|
|
868 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
869 | { |
|
|
870 | if (!*flag) |
|
|
871 | { |
|
|
872 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
873 | |
|
|
874 | *flag = 1; |
|
|
875 | |
|
|
876 | #if EV_USE_EVENTFD |
|
|
877 | if (evfd >= 0) |
|
|
878 | { |
|
|
879 | uint64_t counter = 1; |
|
|
880 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
881 | } |
|
|
882 | else |
|
|
883 | #endif |
|
|
884 | write (evpipe [1], &old_errno, 1); |
|
|
885 | |
|
|
886 | errno = old_errno; |
|
|
887 | } |
|
|
888 | } |
|
|
889 | |
566 | static void |
890 | static void |
|
|
891 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
892 | { |
|
|
893 | #if EV_USE_EVENTFD |
|
|
894 | if (evfd >= 0) |
|
|
895 | { |
|
|
896 | uint64_t counter = 1; |
|
|
897 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
898 | } |
|
|
899 | else |
|
|
900 | #endif |
|
|
901 | { |
|
|
902 | char dummy; |
|
|
903 | read (evpipe [0], &dummy, 1); |
|
|
904 | } |
|
|
905 | |
|
|
906 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
907 | { |
|
|
908 | int signum; |
|
|
909 | gotsig = 0; |
|
|
910 | |
|
|
911 | for (signum = signalmax; signum--; ) |
|
|
912 | if (signals [signum].gotsig) |
|
|
913 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
914 | } |
|
|
915 | |
|
|
916 | #if EV_ASYNC_ENABLE |
|
|
917 | if (gotasync) |
|
|
918 | { |
|
|
919 | int i; |
|
|
920 | gotasync = 0; |
|
|
921 | |
|
|
922 | for (i = asynccnt; i--; ) |
|
|
923 | if (asyncs [i]->sent) |
|
|
924 | { |
|
|
925 | asyncs [i]->sent = 0; |
|
|
926 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
927 | } |
|
|
928 | } |
|
|
929 | #endif |
|
|
930 | } |
|
|
931 | |
|
|
932 | /*****************************************************************************/ |
|
|
933 | |
|
|
934 | static void |
567 | sighandler (int signum) |
935 | ev_sighandler (int signum) |
568 | { |
936 | { |
|
|
937 | #if EV_MULTIPLICITY |
|
|
938 | struct ev_loop *loop = &default_loop_struct; |
|
|
939 | #endif |
|
|
940 | |
569 | #if WIN32 |
941 | #if _WIN32 |
570 | signal (signum, sighandler); |
942 | signal (signum, ev_sighandler); |
571 | #endif |
943 | #endif |
572 | |
944 | |
573 | signals [signum - 1].gotsig = 1; |
945 | signals [signum - 1].gotsig = 1; |
574 | |
946 | evpipe_write (EV_A_ &gotsig); |
575 | if (!gotsig) |
|
|
576 | { |
|
|
577 | int old_errno = errno; |
|
|
578 | gotsig = 1; |
|
|
579 | #ifdef WIN32 |
|
|
580 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
581 | #else |
|
|
582 | write (sigpipe [1], &signum, 1); |
|
|
583 | #endif |
|
|
584 | errno = old_errno; |
|
|
585 | } |
|
|
586 | } |
947 | } |
587 | |
948 | |
588 | void |
949 | void noinline |
589 | ev_feed_signal_event (EV_P_ int signum) |
950 | ev_feed_signal_event (EV_P_ int signum) |
590 | { |
951 | { |
591 | WL w; |
952 | WL w; |
592 | |
953 | |
593 | #if EV_MULTIPLICITY |
954 | #if EV_MULTIPLICITY |
594 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
955 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
595 | #endif |
956 | #endif |
596 | |
957 | |
597 | --signum; |
958 | --signum; |
598 | |
959 | |
599 | if (signum < 0 || signum >= signalmax) |
960 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
603 | |
964 | |
604 | for (w = signals [signum].head; w; w = w->next) |
965 | for (w = signals [signum].head; w; w = w->next) |
605 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
966 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
606 | } |
967 | } |
607 | |
968 | |
608 | static void |
|
|
609 | sigcb (EV_P_ struct ev_io *iow, int revents) |
|
|
610 | { |
|
|
611 | int signum; |
|
|
612 | |
|
|
613 | #ifdef WIN32 |
|
|
614 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
|
|
615 | #else |
|
|
616 | read (sigpipe [0], &revents, 1); |
|
|
617 | #endif |
|
|
618 | gotsig = 0; |
|
|
619 | |
|
|
620 | for (signum = signalmax; signum--; ) |
|
|
621 | if (signals [signum].gotsig) |
|
|
622 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
623 | } |
|
|
624 | |
|
|
625 | static void |
|
|
626 | siginit (EV_P) |
|
|
627 | { |
|
|
628 | #ifndef WIN32 |
|
|
629 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
630 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
631 | |
|
|
632 | /* rather than sort out wether we really need nb, set it */ |
|
|
633 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
634 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
635 | #endif |
|
|
636 | |
|
|
637 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
638 | ev_io_start (EV_A_ &sigev); |
|
|
639 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
640 | } |
|
|
641 | |
|
|
642 | /*****************************************************************************/ |
969 | /*****************************************************************************/ |
643 | |
970 | |
644 | static struct ev_child *childs [PID_HASHSIZE]; |
971 | static WL childs [EV_PID_HASHSIZE]; |
645 | |
972 | |
646 | #ifndef WIN32 |
973 | #ifndef _WIN32 |
647 | |
974 | |
648 | static struct ev_signal childev; |
975 | static ev_signal childev; |
|
|
976 | |
|
|
977 | #ifndef WIFCONTINUED |
|
|
978 | # define WIFCONTINUED(status) 0 |
|
|
979 | #endif |
|
|
980 | |
|
|
981 | void inline_speed |
|
|
982 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
983 | { |
|
|
984 | ev_child *w; |
|
|
985 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
986 | |
|
|
987 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
988 | { |
|
|
989 | if ((w->pid == pid || !w->pid) |
|
|
990 | && (!traced || (w->flags & 1))) |
|
|
991 | { |
|
|
992 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
993 | w->rpid = pid; |
|
|
994 | w->rstatus = status; |
|
|
995 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
996 | } |
|
|
997 | } |
|
|
998 | } |
649 | |
999 | |
650 | #ifndef WCONTINUED |
1000 | #ifndef WCONTINUED |
651 | # define WCONTINUED 0 |
1001 | # define WCONTINUED 0 |
652 | #endif |
1002 | #endif |
653 | |
1003 | |
654 | static void |
1004 | static void |
655 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
656 | { |
|
|
657 | struct ev_child *w; |
|
|
658 | |
|
|
659 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
660 | if (w->pid == pid || !w->pid) |
|
|
661 | { |
|
|
662 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
663 | w->rpid = pid; |
|
|
664 | w->rstatus = status; |
|
|
665 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
666 | } |
|
|
667 | } |
|
|
668 | |
|
|
669 | static void |
|
|
670 | childcb (EV_P_ struct ev_signal *sw, int revents) |
1005 | childcb (EV_P_ ev_signal *sw, int revents) |
671 | { |
1006 | { |
672 | int pid, status; |
1007 | int pid, status; |
673 | |
1008 | |
|
|
1009 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
674 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1010 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
675 | { |
1011 | if (!WCONTINUED |
|
|
1012 | || errno != EINVAL |
|
|
1013 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1014 | return; |
|
|
1015 | |
676 | /* make sure we are called again until all childs have been reaped */ |
1016 | /* make sure we are called again until all children have been reaped */ |
|
|
1017 | /* we need to do it this way so that the callback gets called before we continue */ |
677 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1018 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
678 | |
1019 | |
679 | child_reap (EV_A_ sw, pid, pid, status); |
1020 | child_reap (EV_A_ pid, pid, status); |
|
|
1021 | if (EV_PID_HASHSIZE > 1) |
680 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
1022 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
681 | } |
|
|
682 | } |
1023 | } |
683 | |
1024 | |
684 | #endif |
1025 | #endif |
685 | |
1026 | |
686 | /*****************************************************************************/ |
1027 | /*****************************************************************************/ |
687 | |
1028 | |
|
|
1029 | #if EV_USE_PORT |
|
|
1030 | # include "ev_port.c" |
|
|
1031 | #endif |
688 | #if EV_USE_KQUEUE |
1032 | #if EV_USE_KQUEUE |
689 | # include "ev_kqueue.c" |
1033 | # include "ev_kqueue.c" |
690 | #endif |
1034 | #endif |
691 | #if EV_USE_EPOLL |
1035 | #if EV_USE_EPOLL |
692 | # include "ev_epoll.c" |
1036 | # include "ev_epoll.c" |
… | |
… | |
709 | { |
1053 | { |
710 | return EV_VERSION_MINOR; |
1054 | return EV_VERSION_MINOR; |
711 | } |
1055 | } |
712 | |
1056 | |
713 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1057 | /* return true if we are running with elevated privileges and should ignore env variables */ |
714 | static int |
1058 | int inline_size |
715 | enable_secure (void) |
1059 | enable_secure (void) |
716 | { |
1060 | { |
717 | #ifdef WIN32 |
1061 | #ifdef _WIN32 |
718 | return 0; |
1062 | return 0; |
719 | #else |
1063 | #else |
720 | return getuid () != geteuid () |
1064 | return getuid () != geteuid () |
721 | || getgid () != getegid (); |
1065 | || getgid () != getegid (); |
722 | #endif |
1066 | #endif |
723 | } |
1067 | } |
724 | |
1068 | |
725 | int |
1069 | unsigned int |
726 | ev_method (EV_P) |
1070 | ev_supported_backends (void) |
727 | { |
1071 | { |
728 | return method; |
1072 | unsigned int flags = 0; |
729 | } |
|
|
730 | |
1073 | |
731 | static void |
1074 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
732 | loop_init (EV_P_ int methods) |
1075 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1076 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1077 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1078 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1079 | |
|
|
1080 | return flags; |
|
|
1081 | } |
|
|
1082 | |
|
|
1083 | unsigned int |
|
|
1084 | ev_recommended_backends (void) |
733 | { |
1085 | { |
734 | if (!method) |
1086 | unsigned int flags = ev_supported_backends (); |
|
|
1087 | |
|
|
1088 | #ifndef __NetBSD__ |
|
|
1089 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1090 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1091 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1092 | #endif |
|
|
1093 | #ifdef __APPLE__ |
|
|
1094 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1095 | flags &= ~EVBACKEND_POLL; |
|
|
1096 | #endif |
|
|
1097 | |
|
|
1098 | return flags; |
|
|
1099 | } |
|
|
1100 | |
|
|
1101 | unsigned int |
|
|
1102 | ev_embeddable_backends (void) |
|
|
1103 | { |
|
|
1104 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1105 | |
|
|
1106 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1107 | /* please fix it and tell me how to detect the fix */ |
|
|
1108 | flags &= ~EVBACKEND_EPOLL; |
|
|
1109 | |
|
|
1110 | return flags; |
|
|
1111 | } |
|
|
1112 | |
|
|
1113 | unsigned int |
|
|
1114 | ev_backend (EV_P) |
|
|
1115 | { |
|
|
1116 | return backend; |
|
|
1117 | } |
|
|
1118 | |
|
|
1119 | unsigned int |
|
|
1120 | ev_loop_count (EV_P) |
|
|
1121 | { |
|
|
1122 | return loop_count; |
|
|
1123 | } |
|
|
1124 | |
|
|
1125 | void |
|
|
1126 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1127 | { |
|
|
1128 | io_blocktime = interval; |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | void |
|
|
1132 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1133 | { |
|
|
1134 | timeout_blocktime = interval; |
|
|
1135 | } |
|
|
1136 | |
|
|
1137 | static void noinline |
|
|
1138 | loop_init (EV_P_ unsigned int flags) |
|
|
1139 | { |
|
|
1140 | if (!backend) |
735 | { |
1141 | { |
736 | #if EV_USE_MONOTONIC |
1142 | #if EV_USE_MONOTONIC |
737 | { |
1143 | { |
738 | struct timespec ts; |
1144 | struct timespec ts; |
739 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1145 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
740 | have_monotonic = 1; |
1146 | have_monotonic = 1; |
741 | } |
1147 | } |
742 | #endif |
1148 | #endif |
743 | |
1149 | |
744 | ev_rt_now = ev_time (); |
1150 | ev_rt_now = ev_time (); |
745 | mn_now = get_clock (); |
1151 | mn_now = get_clock (); |
746 | now_floor = mn_now; |
1152 | now_floor = mn_now; |
747 | rtmn_diff = ev_rt_now - mn_now; |
1153 | rtmn_diff = ev_rt_now - mn_now; |
748 | |
1154 | |
749 | if (methods == EVMETHOD_AUTO) |
1155 | io_blocktime = 0.; |
750 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1156 | timeout_blocktime = 0.; |
|
|
1157 | backend = 0; |
|
|
1158 | backend_fd = -1; |
|
|
1159 | gotasync = 0; |
|
|
1160 | #if EV_USE_INOTIFY |
|
|
1161 | fs_fd = -2; |
|
|
1162 | #endif |
|
|
1163 | |
|
|
1164 | /* pid check not overridable via env */ |
|
|
1165 | #ifndef _WIN32 |
|
|
1166 | if (flags & EVFLAG_FORKCHECK) |
|
|
1167 | curpid = getpid (); |
|
|
1168 | #endif |
|
|
1169 | |
|
|
1170 | if (!(flags & EVFLAG_NOENV) |
|
|
1171 | && !enable_secure () |
|
|
1172 | && getenv ("LIBEV_FLAGS")) |
751 | methods = atoi (getenv ("LIBEV_METHODS")); |
1173 | flags = atoi (getenv ("LIBEV_FLAGS")); |
752 | else |
|
|
753 | methods = EVMETHOD_ANY; |
|
|
754 | |
1174 | |
755 | method = 0; |
1175 | if (!(flags & 0x0000ffffUL)) |
756 | #if EV_USE_WIN32 |
1176 | flags |= ev_recommended_backends (); |
757 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
1177 | |
|
|
1178 | #if EV_USE_PORT |
|
|
1179 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
758 | #endif |
1180 | #endif |
759 | #if EV_USE_KQUEUE |
1181 | #if EV_USE_KQUEUE |
760 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
1182 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
761 | #endif |
1183 | #endif |
762 | #if EV_USE_EPOLL |
1184 | #if EV_USE_EPOLL |
763 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
1185 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
764 | #endif |
1186 | #endif |
765 | #if EV_USE_POLL |
1187 | #if EV_USE_POLL |
766 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
1188 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
767 | #endif |
1189 | #endif |
768 | #if EV_USE_SELECT |
1190 | #if EV_USE_SELECT |
769 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
1191 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
770 | #endif |
1192 | #endif |
771 | |
1193 | |
772 | ev_init (&sigev, sigcb); |
1194 | ev_init (&pipeev, pipecb); |
773 | ev_set_priority (&sigev, EV_MAXPRI); |
1195 | ev_set_priority (&pipeev, EV_MAXPRI); |
774 | } |
1196 | } |
775 | } |
1197 | } |
776 | |
1198 | |
777 | void |
1199 | static void noinline |
778 | loop_destroy (EV_P) |
1200 | loop_destroy (EV_P) |
779 | { |
1201 | { |
780 | int i; |
1202 | int i; |
781 | |
1203 | |
|
|
1204 | if (ev_is_active (&pipeev)) |
|
|
1205 | { |
|
|
1206 | ev_ref (EV_A); /* signal watcher */ |
|
|
1207 | ev_io_stop (EV_A_ &pipeev); |
|
|
1208 | |
|
|
1209 | #if EV_USE_EVENTFD |
|
|
1210 | if (evfd >= 0) |
|
|
1211 | close (evfd); |
|
|
1212 | #endif |
|
|
1213 | |
|
|
1214 | if (evpipe [0] >= 0) |
|
|
1215 | { |
|
|
1216 | close (evpipe [0]); |
|
|
1217 | close (evpipe [1]); |
|
|
1218 | } |
|
|
1219 | } |
|
|
1220 | |
782 | #if EV_USE_WIN32 |
1221 | #if EV_USE_INOTIFY |
783 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
1222 | if (fs_fd >= 0) |
|
|
1223 | close (fs_fd); |
|
|
1224 | #endif |
|
|
1225 | |
|
|
1226 | if (backend_fd >= 0) |
|
|
1227 | close (backend_fd); |
|
|
1228 | |
|
|
1229 | #if EV_USE_PORT |
|
|
1230 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
784 | #endif |
1231 | #endif |
785 | #if EV_USE_KQUEUE |
1232 | #if EV_USE_KQUEUE |
786 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1233 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
787 | #endif |
1234 | #endif |
788 | #if EV_USE_EPOLL |
1235 | #if EV_USE_EPOLL |
789 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1236 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
790 | #endif |
1237 | #endif |
791 | #if EV_USE_POLL |
1238 | #if EV_USE_POLL |
792 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1239 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
793 | #endif |
1240 | #endif |
794 | #if EV_USE_SELECT |
1241 | #if EV_USE_SELECT |
795 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1242 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
796 | #endif |
1243 | #endif |
797 | |
1244 | |
798 | for (i = NUMPRI; i--; ) |
1245 | for (i = NUMPRI; i--; ) |
|
|
1246 | { |
799 | array_free (pending, [i]); |
1247 | array_free (pending, [i]); |
|
|
1248 | #if EV_IDLE_ENABLE |
|
|
1249 | array_free (idle, [i]); |
|
|
1250 | #endif |
|
|
1251 | } |
|
|
1252 | |
|
|
1253 | ev_free (anfds); anfdmax = 0; |
800 | |
1254 | |
801 | /* have to use the microsoft-never-gets-it-right macro */ |
1255 | /* have to use the microsoft-never-gets-it-right macro */ |
802 | array_free_microshit (fdchange); |
1256 | array_free (fdchange, EMPTY); |
803 | array_free_microshit (timer); |
1257 | array_free (timer, EMPTY); |
804 | array_free_microshit (periodic); |
1258 | #if EV_PERIODIC_ENABLE |
805 | array_free_microshit (idle); |
1259 | array_free (periodic, EMPTY); |
806 | array_free_microshit (prepare); |
1260 | #endif |
807 | array_free_microshit (check); |
1261 | #if EV_FORK_ENABLE |
|
|
1262 | array_free (fork, EMPTY); |
|
|
1263 | #endif |
|
|
1264 | array_free (prepare, EMPTY); |
|
|
1265 | array_free (check, EMPTY); |
|
|
1266 | #if EV_ASYNC_ENABLE |
|
|
1267 | array_free (async, EMPTY); |
|
|
1268 | #endif |
808 | |
1269 | |
809 | method = 0; |
1270 | backend = 0; |
810 | } |
1271 | } |
811 | |
1272 | |
812 | static void |
1273 | void inline_size infy_fork (EV_P); |
|
|
1274 | |
|
|
1275 | void inline_size |
813 | loop_fork (EV_P) |
1276 | loop_fork (EV_P) |
814 | { |
1277 | { |
|
|
1278 | #if EV_USE_PORT |
|
|
1279 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1280 | #endif |
|
|
1281 | #if EV_USE_KQUEUE |
|
|
1282 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1283 | #endif |
815 | #if EV_USE_EPOLL |
1284 | #if EV_USE_EPOLL |
816 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1285 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
817 | #endif |
1286 | #endif |
818 | #if EV_USE_KQUEUE |
1287 | #if EV_USE_INOTIFY |
819 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1288 | infy_fork (EV_A); |
820 | #endif |
1289 | #endif |
821 | |
1290 | |
822 | if (ev_is_active (&sigev)) |
1291 | if (ev_is_active (&pipeev)) |
823 | { |
1292 | { |
824 | /* default loop */ |
1293 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1294 | /* while we modify the fd vars */ |
|
|
1295 | gotsig = 1; |
|
|
1296 | #if EV_ASYNC_ENABLE |
|
|
1297 | gotasync = 1; |
|
|
1298 | #endif |
825 | |
1299 | |
826 | ev_ref (EV_A); |
1300 | ev_ref (EV_A); |
827 | ev_io_stop (EV_A_ &sigev); |
1301 | ev_io_stop (EV_A_ &pipeev); |
|
|
1302 | |
|
|
1303 | #if EV_USE_EVENTFD |
|
|
1304 | if (evfd >= 0) |
|
|
1305 | close (evfd); |
|
|
1306 | #endif |
|
|
1307 | |
|
|
1308 | if (evpipe [0] >= 0) |
|
|
1309 | { |
828 | close (sigpipe [0]); |
1310 | close (evpipe [0]); |
829 | close (sigpipe [1]); |
1311 | close (evpipe [1]); |
|
|
1312 | } |
830 | |
1313 | |
831 | while (pipe (sigpipe)) |
|
|
832 | syserr ("(libev) error creating pipe"); |
|
|
833 | |
|
|
834 | siginit (EV_A); |
1314 | evpipe_init (EV_A); |
|
|
1315 | /* now iterate over everything, in case we missed something */ |
|
|
1316 | pipecb (EV_A_ &pipeev, EV_READ); |
835 | } |
1317 | } |
836 | |
1318 | |
837 | postfork = 0; |
1319 | postfork = 0; |
838 | } |
1320 | } |
839 | |
1321 | |
840 | #if EV_MULTIPLICITY |
1322 | #if EV_MULTIPLICITY |
841 | struct ev_loop * |
1323 | struct ev_loop * |
842 | ev_loop_new (int methods) |
1324 | ev_loop_new (unsigned int flags) |
843 | { |
1325 | { |
844 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1326 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
845 | |
1327 | |
846 | memset (loop, 0, sizeof (struct ev_loop)); |
1328 | memset (loop, 0, sizeof (struct ev_loop)); |
847 | |
1329 | |
848 | loop_init (EV_A_ methods); |
1330 | loop_init (EV_A_ flags); |
849 | |
1331 | |
850 | if (ev_method (EV_A)) |
1332 | if (ev_backend (EV_A)) |
851 | return loop; |
1333 | return loop; |
852 | |
1334 | |
853 | return 0; |
1335 | return 0; |
854 | } |
1336 | } |
855 | |
1337 | |
… | |
… | |
861 | } |
1343 | } |
862 | |
1344 | |
863 | void |
1345 | void |
864 | ev_loop_fork (EV_P) |
1346 | ev_loop_fork (EV_P) |
865 | { |
1347 | { |
866 | postfork = 1; |
1348 | postfork = 1; /* must be in line with ev_default_fork */ |
867 | } |
1349 | } |
868 | |
1350 | |
869 | #endif |
1351 | #endif |
870 | |
1352 | |
871 | #if EV_MULTIPLICITY |
1353 | #if EV_MULTIPLICITY |
872 | struct ev_loop * |
1354 | struct ev_loop * |
|
|
1355 | ev_default_loop_init (unsigned int flags) |
873 | #else |
1356 | #else |
874 | int |
1357 | int |
|
|
1358 | ev_default_loop (unsigned int flags) |
875 | #endif |
1359 | #endif |
876 | ev_default_loop (int methods) |
|
|
877 | { |
1360 | { |
878 | if (sigpipe [0] == sigpipe [1]) |
|
|
879 | if (pipe (sigpipe)) |
|
|
880 | return 0; |
|
|
881 | |
|
|
882 | if (!default_loop) |
1361 | if (!ev_default_loop_ptr) |
883 | { |
1362 | { |
884 | #if EV_MULTIPLICITY |
1363 | #if EV_MULTIPLICITY |
885 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1364 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
886 | #else |
1365 | #else |
887 | default_loop = 1; |
1366 | ev_default_loop_ptr = 1; |
888 | #endif |
1367 | #endif |
889 | |
1368 | |
890 | loop_init (EV_A_ methods); |
1369 | loop_init (EV_A_ flags); |
891 | |
1370 | |
892 | if (ev_method (EV_A)) |
1371 | if (ev_backend (EV_A)) |
893 | { |
1372 | { |
894 | siginit (EV_A); |
|
|
895 | |
|
|
896 | #ifndef WIN32 |
1373 | #ifndef _WIN32 |
897 | ev_signal_init (&childev, childcb, SIGCHLD); |
1374 | ev_signal_init (&childev, childcb, SIGCHLD); |
898 | ev_set_priority (&childev, EV_MAXPRI); |
1375 | ev_set_priority (&childev, EV_MAXPRI); |
899 | ev_signal_start (EV_A_ &childev); |
1376 | ev_signal_start (EV_A_ &childev); |
900 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1377 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
901 | #endif |
1378 | #endif |
902 | } |
1379 | } |
903 | else |
1380 | else |
904 | default_loop = 0; |
1381 | ev_default_loop_ptr = 0; |
905 | } |
1382 | } |
906 | |
1383 | |
907 | return default_loop; |
1384 | return ev_default_loop_ptr; |
908 | } |
1385 | } |
909 | |
1386 | |
910 | void |
1387 | void |
911 | ev_default_destroy (void) |
1388 | ev_default_destroy (void) |
912 | { |
1389 | { |
913 | #if EV_MULTIPLICITY |
1390 | #if EV_MULTIPLICITY |
914 | struct ev_loop *loop = default_loop; |
1391 | struct ev_loop *loop = ev_default_loop_ptr; |
915 | #endif |
1392 | #endif |
916 | |
1393 | |
917 | #ifndef WIN32 |
1394 | #ifndef _WIN32 |
918 | ev_ref (EV_A); /* child watcher */ |
1395 | ev_ref (EV_A); /* child watcher */ |
919 | ev_signal_stop (EV_A_ &childev); |
1396 | ev_signal_stop (EV_A_ &childev); |
920 | #endif |
1397 | #endif |
921 | |
1398 | |
922 | ev_ref (EV_A); /* signal watcher */ |
|
|
923 | ev_io_stop (EV_A_ &sigev); |
|
|
924 | |
|
|
925 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
926 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
927 | |
|
|
928 | loop_destroy (EV_A); |
1399 | loop_destroy (EV_A); |
929 | } |
1400 | } |
930 | |
1401 | |
931 | void |
1402 | void |
932 | ev_default_fork (void) |
1403 | ev_default_fork (void) |
933 | { |
1404 | { |
934 | #if EV_MULTIPLICITY |
1405 | #if EV_MULTIPLICITY |
935 | struct ev_loop *loop = default_loop; |
1406 | struct ev_loop *loop = ev_default_loop_ptr; |
936 | #endif |
1407 | #endif |
937 | |
1408 | |
938 | if (method) |
1409 | if (backend) |
939 | postfork = 1; |
1410 | postfork = 1; /* must be in line with ev_loop_fork */ |
940 | } |
1411 | } |
941 | |
1412 | |
942 | /*****************************************************************************/ |
1413 | /*****************************************************************************/ |
943 | |
1414 | |
944 | static int |
1415 | void |
945 | any_pending (EV_P) |
1416 | ev_invoke (EV_P_ void *w, int revents) |
946 | { |
1417 | { |
947 | int pri; |
1418 | EV_CB_INVOKE ((W)w, revents); |
948 | |
|
|
949 | for (pri = NUMPRI; pri--; ) |
|
|
950 | if (pendingcnt [pri]) |
|
|
951 | return 1; |
|
|
952 | |
|
|
953 | return 0; |
|
|
954 | } |
1419 | } |
955 | |
1420 | |
956 | static void |
1421 | void inline_speed |
957 | call_pending (EV_P) |
1422 | call_pending (EV_P) |
958 | { |
1423 | { |
959 | int pri; |
1424 | int pri; |
960 | |
1425 | |
961 | for (pri = NUMPRI; pri--; ) |
1426 | for (pri = NUMPRI; pri--; ) |
962 | while (pendingcnt [pri]) |
1427 | while (pendingcnt [pri]) |
963 | { |
1428 | { |
964 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1429 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
965 | |
1430 | |
966 | if (p->w) |
1431 | if (expect_true (p->w)) |
967 | { |
1432 | { |
|
|
1433 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1434 | |
968 | p->w->pending = 0; |
1435 | p->w->pending = 0; |
969 | EV_CB_INVOKE (p->w, p->events); |
1436 | EV_CB_INVOKE (p->w, p->events); |
970 | } |
1437 | } |
971 | } |
1438 | } |
972 | } |
1439 | } |
973 | |
1440 | |
974 | static void |
1441 | void inline_size |
975 | timers_reify (EV_P) |
1442 | timers_reify (EV_P) |
976 | { |
1443 | { |
977 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1444 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
978 | { |
1445 | { |
979 | struct ev_timer *w = timers [0]; |
1446 | ev_timer *w = (ev_timer *)timers [0]; |
980 | |
1447 | |
981 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1448 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
982 | |
1449 | |
983 | /* first reschedule or stop timer */ |
1450 | /* first reschedule or stop timer */ |
984 | if (w->repeat) |
1451 | if (w->repeat) |
985 | { |
1452 | { |
986 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1453 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1454 | |
987 | ((WT)w)->at = mn_now + w->repeat; |
1455 | ((WT)w)->at += w->repeat; |
|
|
1456 | if (((WT)w)->at < mn_now) |
|
|
1457 | ((WT)w)->at = mn_now; |
|
|
1458 | |
988 | downheap ((WT *)timers, timercnt, 0); |
1459 | downheap (timers, timercnt, 0); |
989 | } |
1460 | } |
990 | else |
1461 | else |
991 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1462 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
992 | |
1463 | |
993 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1464 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
994 | } |
1465 | } |
995 | } |
1466 | } |
996 | |
1467 | |
997 | static void |
1468 | #if EV_PERIODIC_ENABLE |
|
|
1469 | void inline_size |
998 | periodics_reify (EV_P) |
1470 | periodics_reify (EV_P) |
999 | { |
1471 | { |
1000 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1472 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1001 | { |
1473 | { |
1002 | struct ev_periodic *w = periodics [0]; |
1474 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1003 | |
1475 | |
1004 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1476 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1005 | |
1477 | |
1006 | /* first reschedule or stop timer */ |
1478 | /* first reschedule or stop timer */ |
1007 | if (w->reschedule_cb) |
1479 | if (w->reschedule_cb) |
1008 | { |
1480 | { |
1009 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1481 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1010 | |
|
|
1011 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1482 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1012 | downheap ((WT *)periodics, periodiccnt, 0); |
1483 | downheap (periodics, periodiccnt, 0); |
1013 | } |
1484 | } |
1014 | else if (w->interval) |
1485 | else if (w->interval) |
1015 | { |
1486 | { |
1016 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1487 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1488 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1017 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1489 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1018 | downheap ((WT *)periodics, periodiccnt, 0); |
1490 | downheap (periodics, periodiccnt, 0); |
1019 | } |
1491 | } |
1020 | else |
1492 | else |
1021 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1493 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1022 | |
1494 | |
1023 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1495 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1024 | } |
1496 | } |
1025 | } |
1497 | } |
1026 | |
1498 | |
1027 | static void |
1499 | static void noinline |
1028 | periodics_reschedule (EV_P) |
1500 | periodics_reschedule (EV_P) |
1029 | { |
1501 | { |
1030 | int i; |
1502 | int i; |
1031 | |
1503 | |
1032 | /* adjust periodics after time jump */ |
1504 | /* adjust periodics after time jump */ |
1033 | for (i = 0; i < periodiccnt; ++i) |
1505 | for (i = 0; i < periodiccnt; ++i) |
1034 | { |
1506 | { |
1035 | struct ev_periodic *w = periodics [i]; |
1507 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1036 | |
1508 | |
1037 | if (w->reschedule_cb) |
1509 | if (w->reschedule_cb) |
1038 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1510 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1039 | else if (w->interval) |
1511 | else if (w->interval) |
1040 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1512 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1041 | } |
1513 | } |
1042 | |
1514 | |
1043 | /* now rebuild the heap */ |
1515 | /* now rebuild the heap */ |
1044 | for (i = periodiccnt >> 1; i--; ) |
1516 | for (i = periodiccnt >> 1; i--; ) |
1045 | downheap ((WT *)periodics, periodiccnt, i); |
1517 | downheap (periodics, periodiccnt, i); |
1046 | } |
1518 | } |
|
|
1519 | #endif |
1047 | |
1520 | |
1048 | inline int |
1521 | #if EV_IDLE_ENABLE |
1049 | time_update_monotonic (EV_P) |
1522 | void inline_size |
|
|
1523 | idle_reify (EV_P) |
1050 | { |
1524 | { |
|
|
1525 | if (expect_false (idleall)) |
|
|
1526 | { |
|
|
1527 | int pri; |
|
|
1528 | |
|
|
1529 | for (pri = NUMPRI; pri--; ) |
|
|
1530 | { |
|
|
1531 | if (pendingcnt [pri]) |
|
|
1532 | break; |
|
|
1533 | |
|
|
1534 | if (idlecnt [pri]) |
|
|
1535 | { |
|
|
1536 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1537 | break; |
|
|
1538 | } |
|
|
1539 | } |
|
|
1540 | } |
|
|
1541 | } |
|
|
1542 | #endif |
|
|
1543 | |
|
|
1544 | void inline_speed |
|
|
1545 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1546 | { |
|
|
1547 | int i; |
|
|
1548 | |
|
|
1549 | #if EV_USE_MONOTONIC |
|
|
1550 | if (expect_true (have_monotonic)) |
|
|
1551 | { |
|
|
1552 | ev_tstamp odiff = rtmn_diff; |
|
|
1553 | |
1051 | mn_now = get_clock (); |
1554 | mn_now = get_clock (); |
1052 | |
1555 | |
|
|
1556 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1557 | /* interpolate in the meantime */ |
1053 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1558 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1054 | { |
1559 | { |
1055 | ev_rt_now = rtmn_diff + mn_now; |
1560 | ev_rt_now = rtmn_diff + mn_now; |
1056 | return 0; |
1561 | return; |
1057 | } |
1562 | } |
1058 | else |
1563 | |
1059 | { |
|
|
1060 | now_floor = mn_now; |
1564 | now_floor = mn_now; |
1061 | ev_rt_now = ev_time (); |
1565 | ev_rt_now = ev_time (); |
1062 | return 1; |
|
|
1063 | } |
|
|
1064 | } |
|
|
1065 | |
1566 | |
1066 | static void |
1567 | /* loop a few times, before making important decisions. |
1067 | time_update (EV_P) |
1568 | * on the choice of "4": one iteration isn't enough, |
1068 | { |
1569 | * in case we get preempted during the calls to |
1069 | int i; |
1570 | * ev_time and get_clock. a second call is almost guaranteed |
1070 | |
1571 | * to succeed in that case, though. and looping a few more times |
1071 | #if EV_USE_MONOTONIC |
1572 | * doesn't hurt either as we only do this on time-jumps or |
1072 | if (expect_true (have_monotonic)) |
1573 | * in the unlikely event of having been preempted here. |
1073 | { |
1574 | */ |
1074 | if (time_update_monotonic (EV_A)) |
1575 | for (i = 4; --i; ) |
1075 | { |
1576 | { |
1076 | ev_tstamp odiff = rtmn_diff; |
|
|
1077 | |
|
|
1078 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
1079 | { |
|
|
1080 | rtmn_diff = ev_rt_now - mn_now; |
1577 | rtmn_diff = ev_rt_now - mn_now; |
1081 | |
1578 | |
1082 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1579 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1083 | return; /* all is well */ |
1580 | return; /* all is well */ |
1084 | |
1581 | |
1085 | ev_rt_now = ev_time (); |
1582 | ev_rt_now = ev_time (); |
1086 | mn_now = get_clock (); |
1583 | mn_now = get_clock (); |
1087 | now_floor = mn_now; |
1584 | now_floor = mn_now; |
1088 | } |
1585 | } |
1089 | |
1586 | |
|
|
1587 | # if EV_PERIODIC_ENABLE |
|
|
1588 | periodics_reschedule (EV_A); |
|
|
1589 | # endif |
|
|
1590 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1591 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1592 | } |
|
|
1593 | else |
|
|
1594 | #endif |
|
|
1595 | { |
|
|
1596 | ev_rt_now = ev_time (); |
|
|
1597 | |
|
|
1598 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1599 | { |
|
|
1600 | #if EV_PERIODIC_ENABLE |
1090 | periodics_reschedule (EV_A); |
1601 | periodics_reschedule (EV_A); |
1091 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1092 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1093 | } |
|
|
1094 | } |
|
|
1095 | else |
|
|
1096 | #endif |
1602 | #endif |
1097 | { |
|
|
1098 | ev_rt_now = ev_time (); |
|
|
1099 | |
|
|
1100 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1101 | { |
|
|
1102 | periodics_reschedule (EV_A); |
|
|
1103 | |
|
|
1104 | /* adjust timers. this is easy, as the offset is the same for all */ |
1603 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1105 | for (i = 0; i < timercnt; ++i) |
1604 | for (i = 0; i < timercnt; ++i) |
1106 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1605 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1107 | } |
1606 | } |
1108 | |
1607 | |
1109 | mn_now = ev_rt_now; |
1608 | mn_now = ev_rt_now; |
… | |
… | |
1125 | static int loop_done; |
1624 | static int loop_done; |
1126 | |
1625 | |
1127 | void |
1626 | void |
1128 | ev_loop (EV_P_ int flags) |
1627 | ev_loop (EV_P_ int flags) |
1129 | { |
1628 | { |
1130 | double block; |
1629 | loop_done = EVUNLOOP_CANCEL; |
1131 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1630 | |
|
|
1631 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1132 | |
1632 | |
1133 | do |
1633 | do |
1134 | { |
1634 | { |
|
|
1635 | #ifndef _WIN32 |
|
|
1636 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1637 | if (expect_false (getpid () != curpid)) |
|
|
1638 | { |
|
|
1639 | curpid = getpid (); |
|
|
1640 | postfork = 1; |
|
|
1641 | } |
|
|
1642 | #endif |
|
|
1643 | |
|
|
1644 | #if EV_FORK_ENABLE |
|
|
1645 | /* we might have forked, so queue fork handlers */ |
|
|
1646 | if (expect_false (postfork)) |
|
|
1647 | if (forkcnt) |
|
|
1648 | { |
|
|
1649 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1650 | call_pending (EV_A); |
|
|
1651 | } |
|
|
1652 | #endif |
|
|
1653 | |
1135 | /* queue check watchers (and execute them) */ |
1654 | /* queue prepare watchers (and execute them) */ |
1136 | if (expect_false (preparecnt)) |
1655 | if (expect_false (preparecnt)) |
1137 | { |
1656 | { |
1138 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1657 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1139 | call_pending (EV_A); |
1658 | call_pending (EV_A); |
1140 | } |
1659 | } |
1141 | |
1660 | |
|
|
1661 | if (expect_false (!activecnt)) |
|
|
1662 | break; |
|
|
1663 | |
1142 | /* we might have forked, so reify kernel state if necessary */ |
1664 | /* we might have forked, so reify kernel state if necessary */ |
1143 | if (expect_false (postfork)) |
1665 | if (expect_false (postfork)) |
1144 | loop_fork (EV_A); |
1666 | loop_fork (EV_A); |
1145 | |
1667 | |
1146 | /* update fd-related kernel structures */ |
1668 | /* update fd-related kernel structures */ |
1147 | fd_reify (EV_A); |
1669 | fd_reify (EV_A); |
1148 | |
1670 | |
1149 | /* calculate blocking time */ |
1671 | /* calculate blocking time */ |
|
|
1672 | { |
|
|
1673 | ev_tstamp waittime = 0.; |
|
|
1674 | ev_tstamp sleeptime = 0.; |
1150 | |
1675 | |
1151 | /* we only need this for !monotonic clock or timers, but as we basically |
1676 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1152 | always have timers, we just calculate it always */ |
|
|
1153 | #if EV_USE_MONOTONIC |
|
|
1154 | if (expect_true (have_monotonic)) |
|
|
1155 | time_update_monotonic (EV_A); |
|
|
1156 | else |
|
|
1157 | #endif |
|
|
1158 | { |
1677 | { |
1159 | ev_rt_now = ev_time (); |
1678 | /* update time to cancel out callback processing overhead */ |
1160 | mn_now = ev_rt_now; |
1679 | time_update (EV_A_ 1e100); |
1161 | } |
|
|
1162 | |
1680 | |
1163 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1164 | block = 0.; |
|
|
1165 | else |
|
|
1166 | { |
|
|
1167 | block = MAX_BLOCKTIME; |
1681 | waittime = MAX_BLOCKTIME; |
1168 | |
1682 | |
1169 | if (timercnt) |
1683 | if (timercnt) |
1170 | { |
1684 | { |
1171 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1685 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1172 | if (block > to) block = to; |
1686 | if (waittime > to) waittime = to; |
1173 | } |
1687 | } |
1174 | |
1688 | |
|
|
1689 | #if EV_PERIODIC_ENABLE |
1175 | if (periodiccnt) |
1690 | if (periodiccnt) |
1176 | { |
1691 | { |
1177 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1692 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1178 | if (block > to) block = to; |
1693 | if (waittime > to) waittime = to; |
1179 | } |
1694 | } |
|
|
1695 | #endif |
1180 | |
1696 | |
1181 | if (block < 0.) block = 0.; |
1697 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1698 | waittime = timeout_blocktime; |
|
|
1699 | |
|
|
1700 | sleeptime = waittime - backend_fudge; |
|
|
1701 | |
|
|
1702 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1703 | sleeptime = io_blocktime; |
|
|
1704 | |
|
|
1705 | if (sleeptime) |
|
|
1706 | { |
|
|
1707 | ev_sleep (sleeptime); |
|
|
1708 | waittime -= sleeptime; |
|
|
1709 | } |
1182 | } |
1710 | } |
1183 | |
1711 | |
1184 | method_poll (EV_A_ block); |
1712 | ++loop_count; |
|
|
1713 | backend_poll (EV_A_ waittime); |
1185 | |
1714 | |
1186 | /* update ev_rt_now, do magic */ |
1715 | /* update ev_rt_now, do magic */ |
1187 | time_update (EV_A); |
1716 | time_update (EV_A_ waittime + sleeptime); |
|
|
1717 | } |
1188 | |
1718 | |
1189 | /* queue pending timers and reschedule them */ |
1719 | /* queue pending timers and reschedule them */ |
1190 | timers_reify (EV_A); /* relative timers called last */ |
1720 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1721 | #if EV_PERIODIC_ENABLE |
1191 | periodics_reify (EV_A); /* absolute timers called first */ |
1722 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1723 | #endif |
1192 | |
1724 | |
|
|
1725 | #if EV_IDLE_ENABLE |
1193 | /* queue idle watchers unless io or timers are pending */ |
1726 | /* queue idle watchers unless other events are pending */ |
1194 | if (idlecnt && !any_pending (EV_A)) |
1727 | idle_reify (EV_A); |
1195 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1728 | #endif |
1196 | |
1729 | |
1197 | /* queue check watchers, to be executed first */ |
1730 | /* queue check watchers, to be executed first */ |
1198 | if (checkcnt) |
1731 | if (expect_false (checkcnt)) |
1199 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1732 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1200 | |
1733 | |
1201 | call_pending (EV_A); |
1734 | call_pending (EV_A); |
1202 | } |
1735 | } |
1203 | while (activecnt && !loop_done); |
1736 | while (expect_true ( |
|
|
1737 | activecnt |
|
|
1738 | && !loop_done |
|
|
1739 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1740 | )); |
1204 | |
1741 | |
1205 | if (loop_done != 2) |
1742 | if (loop_done == EVUNLOOP_ONE) |
1206 | loop_done = 0; |
1743 | loop_done = EVUNLOOP_CANCEL; |
1207 | } |
1744 | } |
1208 | |
1745 | |
1209 | void |
1746 | void |
1210 | ev_unloop (EV_P_ int how) |
1747 | ev_unloop (EV_P_ int how) |
1211 | { |
1748 | { |
1212 | loop_done = how; |
1749 | loop_done = how; |
1213 | } |
1750 | } |
1214 | |
1751 | |
1215 | /*****************************************************************************/ |
1752 | /*****************************************************************************/ |
1216 | |
1753 | |
1217 | inline void |
1754 | void inline_size |
1218 | wlist_add (WL *head, WL elem) |
1755 | wlist_add (WL *head, WL elem) |
1219 | { |
1756 | { |
1220 | elem->next = *head; |
1757 | elem->next = *head; |
1221 | *head = elem; |
1758 | *head = elem; |
1222 | } |
1759 | } |
1223 | |
1760 | |
1224 | inline void |
1761 | void inline_size |
1225 | wlist_del (WL *head, WL elem) |
1762 | wlist_del (WL *head, WL elem) |
1226 | { |
1763 | { |
1227 | while (*head) |
1764 | while (*head) |
1228 | { |
1765 | { |
1229 | if (*head == elem) |
1766 | if (*head == elem) |
… | |
… | |
1234 | |
1771 | |
1235 | head = &(*head)->next; |
1772 | head = &(*head)->next; |
1236 | } |
1773 | } |
1237 | } |
1774 | } |
1238 | |
1775 | |
1239 | inline void |
1776 | void inline_speed |
1240 | ev_clear_pending (EV_P_ W w) |
1777 | clear_pending (EV_P_ W w) |
1241 | { |
1778 | { |
1242 | if (w->pending) |
1779 | if (w->pending) |
1243 | { |
1780 | { |
1244 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1781 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1245 | w->pending = 0; |
1782 | w->pending = 0; |
1246 | } |
1783 | } |
1247 | } |
1784 | } |
1248 | |
1785 | |
1249 | inline void |
1786 | int |
|
|
1787 | ev_clear_pending (EV_P_ void *w) |
|
|
1788 | { |
|
|
1789 | W w_ = (W)w; |
|
|
1790 | int pending = w_->pending; |
|
|
1791 | |
|
|
1792 | if (expect_true (pending)) |
|
|
1793 | { |
|
|
1794 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1795 | w_->pending = 0; |
|
|
1796 | p->w = 0; |
|
|
1797 | return p->events; |
|
|
1798 | } |
|
|
1799 | else |
|
|
1800 | return 0; |
|
|
1801 | } |
|
|
1802 | |
|
|
1803 | void inline_size |
|
|
1804 | pri_adjust (EV_P_ W w) |
|
|
1805 | { |
|
|
1806 | int pri = w->priority; |
|
|
1807 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1808 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1809 | w->priority = pri; |
|
|
1810 | } |
|
|
1811 | |
|
|
1812 | void inline_speed |
1250 | ev_start (EV_P_ W w, int active) |
1813 | ev_start (EV_P_ W w, int active) |
1251 | { |
1814 | { |
1252 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1815 | pri_adjust (EV_A_ w); |
1253 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1254 | |
|
|
1255 | w->active = active; |
1816 | w->active = active; |
1256 | ev_ref (EV_A); |
1817 | ev_ref (EV_A); |
1257 | } |
1818 | } |
1258 | |
1819 | |
1259 | inline void |
1820 | void inline_size |
1260 | ev_stop (EV_P_ W w) |
1821 | ev_stop (EV_P_ W w) |
1261 | { |
1822 | { |
1262 | ev_unref (EV_A); |
1823 | ev_unref (EV_A); |
1263 | w->active = 0; |
1824 | w->active = 0; |
1264 | } |
1825 | } |
1265 | |
1826 | |
1266 | /*****************************************************************************/ |
1827 | /*****************************************************************************/ |
1267 | |
1828 | |
1268 | void |
1829 | void noinline |
1269 | ev_io_start (EV_P_ struct ev_io *w) |
1830 | ev_io_start (EV_P_ ev_io *w) |
1270 | { |
1831 | { |
1271 | int fd = w->fd; |
1832 | int fd = w->fd; |
1272 | |
1833 | |
1273 | if (ev_is_active (w)) |
1834 | if (expect_false (ev_is_active (w))) |
1274 | return; |
1835 | return; |
1275 | |
1836 | |
1276 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1837 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1277 | |
1838 | |
1278 | ev_start (EV_A_ (W)w, 1); |
1839 | ev_start (EV_A_ (W)w, 1); |
1279 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1840 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1280 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1841 | wlist_add (&anfds[fd].head, (WL)w); |
1281 | |
1842 | |
1282 | fd_change (EV_A_ fd); |
1843 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1844 | w->events &= ~EV_IOFDSET; |
1283 | } |
1845 | } |
1284 | |
1846 | |
1285 | void |
1847 | void noinline |
1286 | ev_io_stop (EV_P_ struct ev_io *w) |
1848 | ev_io_stop (EV_P_ ev_io *w) |
1287 | { |
1849 | { |
1288 | ev_clear_pending (EV_A_ (W)w); |
1850 | clear_pending (EV_A_ (W)w); |
1289 | if (!ev_is_active (w)) |
1851 | if (expect_false (!ev_is_active (w))) |
1290 | return; |
1852 | return; |
1291 | |
1853 | |
|
|
1854 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1855 | |
1292 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1856 | wlist_del (&anfds[w->fd].head, (WL)w); |
1293 | ev_stop (EV_A_ (W)w); |
1857 | ev_stop (EV_A_ (W)w); |
1294 | |
1858 | |
1295 | fd_change (EV_A_ w->fd); |
1859 | fd_change (EV_A_ w->fd, 1); |
1296 | } |
1860 | } |
1297 | |
1861 | |
1298 | void |
1862 | void noinline |
1299 | ev_timer_start (EV_P_ struct ev_timer *w) |
1863 | ev_timer_start (EV_P_ ev_timer *w) |
|
|
1864 | { |
|
|
1865 | if (expect_false (ev_is_active (w))) |
|
|
1866 | return; |
|
|
1867 | |
|
|
1868 | ((WT)w)->at += mn_now; |
|
|
1869 | |
|
|
1870 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
|
|
1871 | |
|
|
1872 | ev_start (EV_A_ (W)w, ++timercnt); |
|
|
1873 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
|
|
1874 | timers [timercnt - 1] = (WT)w; |
|
|
1875 | upheap (timers, timercnt - 1); |
|
|
1876 | |
|
|
1877 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1878 | } |
|
|
1879 | |
|
|
1880 | void noinline |
|
|
1881 | ev_timer_stop (EV_P_ ev_timer *w) |
|
|
1882 | { |
|
|
1883 | clear_pending (EV_A_ (W)w); |
|
|
1884 | if (expect_false (!ev_is_active (w))) |
|
|
1885 | return; |
|
|
1886 | |
|
|
1887 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
|
|
1888 | |
|
|
1889 | { |
|
|
1890 | int active = ((W)w)->active; |
|
|
1891 | |
|
|
1892 | if (expect_true (--active < --timercnt)) |
|
|
1893 | { |
|
|
1894 | timers [active] = timers [timercnt]; |
|
|
1895 | adjustheap (timers, timercnt, active); |
|
|
1896 | } |
|
|
1897 | } |
|
|
1898 | |
|
|
1899 | ((WT)w)->at -= mn_now; |
|
|
1900 | |
|
|
1901 | ev_stop (EV_A_ (W)w); |
|
|
1902 | } |
|
|
1903 | |
|
|
1904 | void noinline |
|
|
1905 | ev_timer_again (EV_P_ ev_timer *w) |
1300 | { |
1906 | { |
1301 | if (ev_is_active (w)) |
1907 | if (ev_is_active (w)) |
1302 | return; |
|
|
1303 | |
|
|
1304 | ((WT)w)->at += mn_now; |
|
|
1305 | |
|
|
1306 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
|
|
1307 | |
|
|
1308 | ev_start (EV_A_ (W)w, ++timercnt); |
|
|
1309 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
|
|
1310 | timers [timercnt - 1] = w; |
|
|
1311 | upheap ((WT *)timers, timercnt - 1); |
|
|
1312 | |
|
|
1313 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1314 | } |
|
|
1315 | |
|
|
1316 | void |
|
|
1317 | ev_timer_stop (EV_P_ struct ev_timer *w) |
|
|
1318 | { |
|
|
1319 | ev_clear_pending (EV_A_ (W)w); |
|
|
1320 | if (!ev_is_active (w)) |
|
|
1321 | return; |
|
|
1322 | |
|
|
1323 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1324 | |
|
|
1325 | if (((W)w)->active < timercnt--) |
|
|
1326 | { |
|
|
1327 | timers [((W)w)->active - 1] = timers [timercnt]; |
|
|
1328 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
|
|
1329 | } |
|
|
1330 | |
|
|
1331 | ((WT)w)->at = w->repeat; |
|
|
1332 | |
|
|
1333 | ev_stop (EV_A_ (W)w); |
|
|
1334 | } |
|
|
1335 | |
|
|
1336 | void |
|
|
1337 | ev_timer_again (EV_P_ struct ev_timer *w) |
|
|
1338 | { |
|
|
1339 | if (ev_is_active (w)) |
|
|
1340 | { |
1908 | { |
1341 | if (w->repeat) |
1909 | if (w->repeat) |
|
|
1910 | { |
|
|
1911 | ((WT)w)->at = mn_now + w->repeat; |
1342 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat); |
1912 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
|
|
1913 | } |
1343 | else |
1914 | else |
1344 | ev_timer_stop (EV_A_ w); |
1915 | ev_timer_stop (EV_A_ w); |
1345 | } |
1916 | } |
1346 | else if (w->repeat) |
1917 | else if (w->repeat) |
|
|
1918 | { |
|
|
1919 | w->at = w->repeat; |
1347 | ev_timer_start (EV_A_ w); |
1920 | ev_timer_start (EV_A_ w); |
|
|
1921 | } |
1348 | } |
1922 | } |
1349 | |
1923 | |
1350 | void |
1924 | #if EV_PERIODIC_ENABLE |
|
|
1925 | void noinline |
1351 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1926 | ev_periodic_start (EV_P_ ev_periodic *w) |
1352 | { |
1927 | { |
1353 | if (ev_is_active (w)) |
1928 | if (expect_false (ev_is_active (w))) |
1354 | return; |
1929 | return; |
1355 | |
1930 | |
1356 | if (w->reschedule_cb) |
1931 | if (w->reschedule_cb) |
1357 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1932 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1358 | else if (w->interval) |
1933 | else if (w->interval) |
1359 | { |
1934 | { |
1360 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1935 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1361 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1936 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1362 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1937 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1363 | } |
1938 | } |
|
|
1939 | else |
|
|
1940 | ((WT)w)->at = w->offset; |
1364 | |
1941 | |
1365 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1942 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1366 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1943 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1367 | periodics [periodiccnt - 1] = w; |
1944 | periodics [periodiccnt - 1] = (WT)w; |
1368 | upheap ((WT *)periodics, periodiccnt - 1); |
1945 | upheap (periodics, periodiccnt - 1); |
1369 | |
1946 | |
1370 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1947 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1371 | } |
1948 | } |
1372 | |
1949 | |
1373 | void |
1950 | void noinline |
1374 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1951 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1375 | { |
1952 | { |
1376 | ev_clear_pending (EV_A_ (W)w); |
1953 | clear_pending (EV_A_ (W)w); |
1377 | if (!ev_is_active (w)) |
1954 | if (expect_false (!ev_is_active (w))) |
1378 | return; |
1955 | return; |
1379 | |
1956 | |
1380 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1957 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1381 | |
1958 | |
1382 | if (((W)w)->active < periodiccnt--) |
1959 | { |
|
|
1960 | int active = ((W)w)->active; |
|
|
1961 | |
|
|
1962 | if (expect_true (--active < --periodiccnt)) |
1383 | { |
1963 | { |
1384 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1964 | periodics [active] = periodics [periodiccnt]; |
1385 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1965 | adjustheap (periodics, periodiccnt, active); |
1386 | } |
1966 | } |
|
|
1967 | } |
1387 | |
1968 | |
1388 | ev_stop (EV_A_ (W)w); |
1969 | ev_stop (EV_A_ (W)w); |
1389 | } |
1970 | } |
1390 | |
1971 | |
1391 | void |
1972 | void noinline |
1392 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
1973 | ev_periodic_again (EV_P_ ev_periodic *w) |
1393 | { |
1974 | { |
1394 | /* TODO: use adjustheap and recalculation */ |
1975 | /* TODO: use adjustheap and recalculation */ |
1395 | ev_periodic_stop (EV_A_ w); |
1976 | ev_periodic_stop (EV_A_ w); |
1396 | ev_periodic_start (EV_A_ w); |
1977 | ev_periodic_start (EV_A_ w); |
1397 | } |
1978 | } |
1398 | |
1979 | #endif |
1399 | void |
|
|
1400 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1401 | { |
|
|
1402 | if (ev_is_active (w)) |
|
|
1403 | return; |
|
|
1404 | |
|
|
1405 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1406 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1407 | idles [idlecnt - 1] = w; |
|
|
1408 | } |
|
|
1409 | |
|
|
1410 | void |
|
|
1411 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1412 | { |
|
|
1413 | ev_clear_pending (EV_A_ (W)w); |
|
|
1414 | if (ev_is_active (w)) |
|
|
1415 | return; |
|
|
1416 | |
|
|
1417 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1418 | ev_stop (EV_A_ (W)w); |
|
|
1419 | } |
|
|
1420 | |
|
|
1421 | void |
|
|
1422 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1423 | { |
|
|
1424 | if (ev_is_active (w)) |
|
|
1425 | return; |
|
|
1426 | |
|
|
1427 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1428 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1429 | prepares [preparecnt - 1] = w; |
|
|
1430 | } |
|
|
1431 | |
|
|
1432 | void |
|
|
1433 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1434 | { |
|
|
1435 | ev_clear_pending (EV_A_ (W)w); |
|
|
1436 | if (ev_is_active (w)) |
|
|
1437 | return; |
|
|
1438 | |
|
|
1439 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1440 | ev_stop (EV_A_ (W)w); |
|
|
1441 | } |
|
|
1442 | |
|
|
1443 | void |
|
|
1444 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1445 | { |
|
|
1446 | if (ev_is_active (w)) |
|
|
1447 | return; |
|
|
1448 | |
|
|
1449 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1450 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1451 | checks [checkcnt - 1] = w; |
|
|
1452 | } |
|
|
1453 | |
|
|
1454 | void |
|
|
1455 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1456 | { |
|
|
1457 | ev_clear_pending (EV_A_ (W)w); |
|
|
1458 | if (ev_is_active (w)) |
|
|
1459 | return; |
|
|
1460 | |
|
|
1461 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1462 | ev_stop (EV_A_ (W)w); |
|
|
1463 | } |
|
|
1464 | |
1980 | |
1465 | #ifndef SA_RESTART |
1981 | #ifndef SA_RESTART |
1466 | # define SA_RESTART 0 |
1982 | # define SA_RESTART 0 |
1467 | #endif |
1983 | #endif |
1468 | |
1984 | |
1469 | void |
1985 | void noinline |
1470 | ev_signal_start (EV_P_ struct ev_signal *w) |
1986 | ev_signal_start (EV_P_ ev_signal *w) |
1471 | { |
1987 | { |
1472 | #if EV_MULTIPLICITY |
1988 | #if EV_MULTIPLICITY |
1473 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1989 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1474 | #endif |
1990 | #endif |
1475 | if (ev_is_active (w)) |
1991 | if (expect_false (ev_is_active (w))) |
1476 | return; |
1992 | return; |
1477 | |
1993 | |
1478 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1994 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1479 | |
1995 | |
|
|
1996 | evpipe_init (EV_A); |
|
|
1997 | |
|
|
1998 | { |
|
|
1999 | #ifndef _WIN32 |
|
|
2000 | sigset_t full, prev; |
|
|
2001 | sigfillset (&full); |
|
|
2002 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2003 | #endif |
|
|
2004 | |
|
|
2005 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2006 | |
|
|
2007 | #ifndef _WIN32 |
|
|
2008 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2009 | #endif |
|
|
2010 | } |
|
|
2011 | |
1480 | ev_start (EV_A_ (W)w, 1); |
2012 | ev_start (EV_A_ (W)w, 1); |
1481 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1482 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2013 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1483 | |
2014 | |
1484 | if (!((WL)w)->next) |
2015 | if (!((WL)w)->next) |
1485 | { |
2016 | { |
1486 | #if WIN32 |
2017 | #if _WIN32 |
1487 | signal (w->signum, sighandler); |
2018 | signal (w->signum, ev_sighandler); |
1488 | #else |
2019 | #else |
1489 | struct sigaction sa; |
2020 | struct sigaction sa; |
1490 | sa.sa_handler = sighandler; |
2021 | sa.sa_handler = ev_sighandler; |
1491 | sigfillset (&sa.sa_mask); |
2022 | sigfillset (&sa.sa_mask); |
1492 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2023 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1493 | sigaction (w->signum, &sa, 0); |
2024 | sigaction (w->signum, &sa, 0); |
1494 | #endif |
2025 | #endif |
1495 | } |
2026 | } |
1496 | } |
2027 | } |
1497 | |
2028 | |
1498 | void |
2029 | void noinline |
1499 | ev_signal_stop (EV_P_ struct ev_signal *w) |
2030 | ev_signal_stop (EV_P_ ev_signal *w) |
1500 | { |
2031 | { |
1501 | ev_clear_pending (EV_A_ (W)w); |
2032 | clear_pending (EV_A_ (W)w); |
1502 | if (!ev_is_active (w)) |
2033 | if (expect_false (!ev_is_active (w))) |
1503 | return; |
2034 | return; |
1504 | |
2035 | |
1505 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2036 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1506 | ev_stop (EV_A_ (W)w); |
2037 | ev_stop (EV_A_ (W)w); |
1507 | |
2038 | |
1508 | if (!signals [w->signum - 1].head) |
2039 | if (!signals [w->signum - 1].head) |
1509 | signal (w->signum, SIG_DFL); |
2040 | signal (w->signum, SIG_DFL); |
1510 | } |
2041 | } |
1511 | |
2042 | |
1512 | void |
2043 | void |
1513 | ev_child_start (EV_P_ struct ev_child *w) |
2044 | ev_child_start (EV_P_ ev_child *w) |
1514 | { |
2045 | { |
1515 | #if EV_MULTIPLICITY |
2046 | #if EV_MULTIPLICITY |
1516 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
2047 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1517 | #endif |
2048 | #endif |
1518 | if (ev_is_active (w)) |
2049 | if (expect_false (ev_is_active (w))) |
1519 | return; |
2050 | return; |
1520 | |
2051 | |
1521 | ev_start (EV_A_ (W)w, 1); |
2052 | ev_start (EV_A_ (W)w, 1); |
1522 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2053 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1523 | } |
2054 | } |
1524 | |
2055 | |
1525 | void |
2056 | void |
1526 | ev_child_stop (EV_P_ struct ev_child *w) |
2057 | ev_child_stop (EV_P_ ev_child *w) |
1527 | { |
2058 | { |
1528 | ev_clear_pending (EV_A_ (W)w); |
2059 | clear_pending (EV_A_ (W)w); |
1529 | if (ev_is_active (w)) |
2060 | if (expect_false (!ev_is_active (w))) |
1530 | return; |
2061 | return; |
1531 | |
2062 | |
1532 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2063 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1533 | ev_stop (EV_A_ (W)w); |
2064 | ev_stop (EV_A_ (W)w); |
1534 | } |
2065 | } |
1535 | |
2066 | |
|
|
2067 | #if EV_STAT_ENABLE |
|
|
2068 | |
|
|
2069 | # ifdef _WIN32 |
|
|
2070 | # undef lstat |
|
|
2071 | # define lstat(a,b) _stati64 (a,b) |
|
|
2072 | # endif |
|
|
2073 | |
|
|
2074 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2075 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2076 | |
|
|
2077 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2078 | |
|
|
2079 | #if EV_USE_INOTIFY |
|
|
2080 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2081 | |
|
|
2082 | static void noinline |
|
|
2083 | infy_add (EV_P_ ev_stat *w) |
|
|
2084 | { |
|
|
2085 | 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); |
|
|
2086 | |
|
|
2087 | if (w->wd < 0) |
|
|
2088 | { |
|
|
2089 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2090 | |
|
|
2091 | /* monitor some parent directory for speedup hints */ |
|
|
2092 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2093 | { |
|
|
2094 | char path [4096]; |
|
|
2095 | strcpy (path, w->path); |
|
|
2096 | |
|
|
2097 | do |
|
|
2098 | { |
|
|
2099 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2100 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2101 | |
|
|
2102 | char *pend = strrchr (path, '/'); |
|
|
2103 | |
|
|
2104 | if (!pend) |
|
|
2105 | break; /* whoops, no '/', complain to your admin */ |
|
|
2106 | |
|
|
2107 | *pend = 0; |
|
|
2108 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2109 | } |
|
|
2110 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2111 | } |
|
|
2112 | } |
|
|
2113 | else |
|
|
2114 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2115 | |
|
|
2116 | if (w->wd >= 0) |
|
|
2117 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2118 | } |
|
|
2119 | |
|
|
2120 | static void noinline |
|
|
2121 | infy_del (EV_P_ ev_stat *w) |
|
|
2122 | { |
|
|
2123 | int slot; |
|
|
2124 | int wd = w->wd; |
|
|
2125 | |
|
|
2126 | if (wd < 0) |
|
|
2127 | return; |
|
|
2128 | |
|
|
2129 | w->wd = -2; |
|
|
2130 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2131 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2132 | |
|
|
2133 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2134 | inotify_rm_watch (fs_fd, wd); |
|
|
2135 | } |
|
|
2136 | |
|
|
2137 | static void noinline |
|
|
2138 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2139 | { |
|
|
2140 | if (slot < 0) |
|
|
2141 | /* overflow, need to check for all hahs slots */ |
|
|
2142 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2143 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2144 | else |
|
|
2145 | { |
|
|
2146 | WL w_; |
|
|
2147 | |
|
|
2148 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2149 | { |
|
|
2150 | ev_stat *w = (ev_stat *)w_; |
|
|
2151 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2152 | |
|
|
2153 | if (w->wd == wd || wd == -1) |
|
|
2154 | { |
|
|
2155 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2156 | { |
|
|
2157 | w->wd = -1; |
|
|
2158 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2162 | } |
|
|
2163 | } |
|
|
2164 | } |
|
|
2165 | } |
|
|
2166 | |
|
|
2167 | static void |
|
|
2168 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2169 | { |
|
|
2170 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2171 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2172 | int ofs; |
|
|
2173 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2174 | |
|
|
2175 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2176 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2177 | } |
|
|
2178 | |
|
|
2179 | void inline_size |
|
|
2180 | infy_init (EV_P) |
|
|
2181 | { |
|
|
2182 | if (fs_fd != -2) |
|
|
2183 | return; |
|
|
2184 | |
|
|
2185 | fs_fd = inotify_init (); |
|
|
2186 | |
|
|
2187 | if (fs_fd >= 0) |
|
|
2188 | { |
|
|
2189 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2190 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2191 | ev_io_start (EV_A_ &fs_w); |
|
|
2192 | } |
|
|
2193 | } |
|
|
2194 | |
|
|
2195 | void inline_size |
|
|
2196 | infy_fork (EV_P) |
|
|
2197 | { |
|
|
2198 | int slot; |
|
|
2199 | |
|
|
2200 | if (fs_fd < 0) |
|
|
2201 | return; |
|
|
2202 | |
|
|
2203 | close (fs_fd); |
|
|
2204 | fs_fd = inotify_init (); |
|
|
2205 | |
|
|
2206 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2207 | { |
|
|
2208 | WL w_ = fs_hash [slot].head; |
|
|
2209 | fs_hash [slot].head = 0; |
|
|
2210 | |
|
|
2211 | while (w_) |
|
|
2212 | { |
|
|
2213 | ev_stat *w = (ev_stat *)w_; |
|
|
2214 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2215 | |
|
|
2216 | w->wd = -1; |
|
|
2217 | |
|
|
2218 | if (fs_fd >= 0) |
|
|
2219 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2220 | else |
|
|
2221 | ev_timer_start (EV_A_ &w->timer); |
|
|
2222 | } |
|
|
2223 | |
|
|
2224 | } |
|
|
2225 | } |
|
|
2226 | |
|
|
2227 | #endif |
|
|
2228 | |
|
|
2229 | void |
|
|
2230 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2231 | { |
|
|
2232 | if (lstat (w->path, &w->attr) < 0) |
|
|
2233 | w->attr.st_nlink = 0; |
|
|
2234 | else if (!w->attr.st_nlink) |
|
|
2235 | w->attr.st_nlink = 1; |
|
|
2236 | } |
|
|
2237 | |
|
|
2238 | static void noinline |
|
|
2239 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2240 | { |
|
|
2241 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2242 | |
|
|
2243 | /* we copy this here each the time so that */ |
|
|
2244 | /* prev has the old value when the callback gets invoked */ |
|
|
2245 | w->prev = w->attr; |
|
|
2246 | ev_stat_stat (EV_A_ w); |
|
|
2247 | |
|
|
2248 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2249 | if ( |
|
|
2250 | w->prev.st_dev != w->attr.st_dev |
|
|
2251 | || w->prev.st_ino != w->attr.st_ino |
|
|
2252 | || w->prev.st_mode != w->attr.st_mode |
|
|
2253 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2254 | || w->prev.st_uid != w->attr.st_uid |
|
|
2255 | || w->prev.st_gid != w->attr.st_gid |
|
|
2256 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2257 | || w->prev.st_size != w->attr.st_size |
|
|
2258 | || w->prev.st_atime != w->attr.st_atime |
|
|
2259 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2260 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2261 | ) { |
|
|
2262 | #if EV_USE_INOTIFY |
|
|
2263 | infy_del (EV_A_ w); |
|
|
2264 | infy_add (EV_A_ w); |
|
|
2265 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2266 | #endif |
|
|
2267 | |
|
|
2268 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2269 | } |
|
|
2270 | } |
|
|
2271 | |
|
|
2272 | void |
|
|
2273 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2274 | { |
|
|
2275 | if (expect_false (ev_is_active (w))) |
|
|
2276 | return; |
|
|
2277 | |
|
|
2278 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2279 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2280 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2281 | |
|
|
2282 | ev_stat_stat (EV_A_ w); |
|
|
2283 | |
|
|
2284 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2285 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2286 | |
|
|
2287 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2288 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2289 | |
|
|
2290 | #if EV_USE_INOTIFY |
|
|
2291 | infy_init (EV_A); |
|
|
2292 | |
|
|
2293 | if (fs_fd >= 0) |
|
|
2294 | infy_add (EV_A_ w); |
|
|
2295 | else |
|
|
2296 | #endif |
|
|
2297 | ev_timer_start (EV_A_ &w->timer); |
|
|
2298 | |
|
|
2299 | ev_start (EV_A_ (W)w, 1); |
|
|
2300 | } |
|
|
2301 | |
|
|
2302 | void |
|
|
2303 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2304 | { |
|
|
2305 | clear_pending (EV_A_ (W)w); |
|
|
2306 | if (expect_false (!ev_is_active (w))) |
|
|
2307 | return; |
|
|
2308 | |
|
|
2309 | #if EV_USE_INOTIFY |
|
|
2310 | infy_del (EV_A_ w); |
|
|
2311 | #endif |
|
|
2312 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2313 | |
|
|
2314 | ev_stop (EV_A_ (W)w); |
|
|
2315 | } |
|
|
2316 | #endif |
|
|
2317 | |
|
|
2318 | #if EV_IDLE_ENABLE |
|
|
2319 | void |
|
|
2320 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2321 | { |
|
|
2322 | if (expect_false (ev_is_active (w))) |
|
|
2323 | return; |
|
|
2324 | |
|
|
2325 | pri_adjust (EV_A_ (W)w); |
|
|
2326 | |
|
|
2327 | { |
|
|
2328 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2329 | |
|
|
2330 | ++idleall; |
|
|
2331 | ev_start (EV_A_ (W)w, active); |
|
|
2332 | |
|
|
2333 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2334 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2335 | } |
|
|
2336 | } |
|
|
2337 | |
|
|
2338 | void |
|
|
2339 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2340 | { |
|
|
2341 | clear_pending (EV_A_ (W)w); |
|
|
2342 | if (expect_false (!ev_is_active (w))) |
|
|
2343 | return; |
|
|
2344 | |
|
|
2345 | { |
|
|
2346 | int active = ((W)w)->active; |
|
|
2347 | |
|
|
2348 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2349 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2350 | |
|
|
2351 | ev_stop (EV_A_ (W)w); |
|
|
2352 | --idleall; |
|
|
2353 | } |
|
|
2354 | } |
|
|
2355 | #endif |
|
|
2356 | |
|
|
2357 | void |
|
|
2358 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2359 | { |
|
|
2360 | if (expect_false (ev_is_active (w))) |
|
|
2361 | return; |
|
|
2362 | |
|
|
2363 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2364 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2365 | prepares [preparecnt - 1] = w; |
|
|
2366 | } |
|
|
2367 | |
|
|
2368 | void |
|
|
2369 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2370 | { |
|
|
2371 | clear_pending (EV_A_ (W)w); |
|
|
2372 | if (expect_false (!ev_is_active (w))) |
|
|
2373 | return; |
|
|
2374 | |
|
|
2375 | { |
|
|
2376 | int active = ((W)w)->active; |
|
|
2377 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2378 | ((W)prepares [active - 1])->active = active; |
|
|
2379 | } |
|
|
2380 | |
|
|
2381 | ev_stop (EV_A_ (W)w); |
|
|
2382 | } |
|
|
2383 | |
|
|
2384 | void |
|
|
2385 | ev_check_start (EV_P_ ev_check *w) |
|
|
2386 | { |
|
|
2387 | if (expect_false (ev_is_active (w))) |
|
|
2388 | return; |
|
|
2389 | |
|
|
2390 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2391 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2392 | checks [checkcnt - 1] = w; |
|
|
2393 | } |
|
|
2394 | |
|
|
2395 | void |
|
|
2396 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2397 | { |
|
|
2398 | clear_pending (EV_A_ (W)w); |
|
|
2399 | if (expect_false (!ev_is_active (w))) |
|
|
2400 | return; |
|
|
2401 | |
|
|
2402 | { |
|
|
2403 | int active = ((W)w)->active; |
|
|
2404 | checks [active - 1] = checks [--checkcnt]; |
|
|
2405 | ((W)checks [active - 1])->active = active; |
|
|
2406 | } |
|
|
2407 | |
|
|
2408 | ev_stop (EV_A_ (W)w); |
|
|
2409 | } |
|
|
2410 | |
|
|
2411 | #if EV_EMBED_ENABLE |
|
|
2412 | void noinline |
|
|
2413 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2414 | { |
|
|
2415 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2416 | } |
|
|
2417 | |
|
|
2418 | static void |
|
|
2419 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2420 | { |
|
|
2421 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2422 | |
|
|
2423 | if (ev_cb (w)) |
|
|
2424 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2425 | else |
|
|
2426 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2427 | } |
|
|
2428 | |
|
|
2429 | static void |
|
|
2430 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2431 | { |
|
|
2432 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2433 | |
|
|
2434 | { |
|
|
2435 | struct ev_loop *loop = w->other; |
|
|
2436 | |
|
|
2437 | while (fdchangecnt) |
|
|
2438 | { |
|
|
2439 | fd_reify (EV_A); |
|
|
2440 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2441 | } |
|
|
2442 | } |
|
|
2443 | } |
|
|
2444 | |
|
|
2445 | #if 0 |
|
|
2446 | static void |
|
|
2447 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2448 | { |
|
|
2449 | ev_idle_stop (EV_A_ idle); |
|
|
2450 | } |
|
|
2451 | #endif |
|
|
2452 | |
|
|
2453 | void |
|
|
2454 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2455 | { |
|
|
2456 | if (expect_false (ev_is_active (w))) |
|
|
2457 | return; |
|
|
2458 | |
|
|
2459 | { |
|
|
2460 | struct ev_loop *loop = w->other; |
|
|
2461 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2462 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2463 | } |
|
|
2464 | |
|
|
2465 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2466 | ev_io_start (EV_A_ &w->io); |
|
|
2467 | |
|
|
2468 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2469 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2470 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2471 | |
|
|
2472 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2473 | |
|
|
2474 | ev_start (EV_A_ (W)w, 1); |
|
|
2475 | } |
|
|
2476 | |
|
|
2477 | void |
|
|
2478 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2479 | { |
|
|
2480 | clear_pending (EV_A_ (W)w); |
|
|
2481 | if (expect_false (!ev_is_active (w))) |
|
|
2482 | return; |
|
|
2483 | |
|
|
2484 | ev_io_stop (EV_A_ &w->io); |
|
|
2485 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2486 | |
|
|
2487 | ev_stop (EV_A_ (W)w); |
|
|
2488 | } |
|
|
2489 | #endif |
|
|
2490 | |
|
|
2491 | #if EV_FORK_ENABLE |
|
|
2492 | void |
|
|
2493 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2494 | { |
|
|
2495 | if (expect_false (ev_is_active (w))) |
|
|
2496 | return; |
|
|
2497 | |
|
|
2498 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2499 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2500 | forks [forkcnt - 1] = w; |
|
|
2501 | } |
|
|
2502 | |
|
|
2503 | void |
|
|
2504 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2505 | { |
|
|
2506 | clear_pending (EV_A_ (W)w); |
|
|
2507 | if (expect_false (!ev_is_active (w))) |
|
|
2508 | return; |
|
|
2509 | |
|
|
2510 | { |
|
|
2511 | int active = ((W)w)->active; |
|
|
2512 | forks [active - 1] = forks [--forkcnt]; |
|
|
2513 | ((W)forks [active - 1])->active = active; |
|
|
2514 | } |
|
|
2515 | |
|
|
2516 | ev_stop (EV_A_ (W)w); |
|
|
2517 | } |
|
|
2518 | #endif |
|
|
2519 | |
|
|
2520 | #if EV_ASYNC_ENABLE |
|
|
2521 | void |
|
|
2522 | ev_async_start (EV_P_ ev_async *w) |
|
|
2523 | { |
|
|
2524 | if (expect_false (ev_is_active (w))) |
|
|
2525 | return; |
|
|
2526 | |
|
|
2527 | evpipe_init (EV_A); |
|
|
2528 | |
|
|
2529 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2530 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2531 | asyncs [asynccnt - 1] = w; |
|
|
2532 | } |
|
|
2533 | |
|
|
2534 | void |
|
|
2535 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2536 | { |
|
|
2537 | clear_pending (EV_A_ (W)w); |
|
|
2538 | if (expect_false (!ev_is_active (w))) |
|
|
2539 | return; |
|
|
2540 | |
|
|
2541 | { |
|
|
2542 | int active = ((W)w)->active; |
|
|
2543 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2544 | ((W)asyncs [active - 1])->active = active; |
|
|
2545 | } |
|
|
2546 | |
|
|
2547 | ev_stop (EV_A_ (W)w); |
|
|
2548 | } |
|
|
2549 | |
|
|
2550 | void |
|
|
2551 | ev_async_send (EV_P_ ev_async *w) |
|
|
2552 | { |
|
|
2553 | w->sent = 1; |
|
|
2554 | evpipe_write (EV_A_ &gotasync); |
|
|
2555 | } |
|
|
2556 | #endif |
|
|
2557 | |
1536 | /*****************************************************************************/ |
2558 | /*****************************************************************************/ |
1537 | |
2559 | |
1538 | struct ev_once |
2560 | struct ev_once |
1539 | { |
2561 | { |
1540 | struct ev_io io; |
2562 | ev_io io; |
1541 | struct ev_timer to; |
2563 | ev_timer to; |
1542 | void (*cb)(int revents, void *arg); |
2564 | void (*cb)(int revents, void *arg); |
1543 | void *arg; |
2565 | void *arg; |
1544 | }; |
2566 | }; |
1545 | |
2567 | |
1546 | static void |
2568 | static void |
… | |
… | |
1555 | |
2577 | |
1556 | cb (revents, arg); |
2578 | cb (revents, arg); |
1557 | } |
2579 | } |
1558 | |
2580 | |
1559 | static void |
2581 | static void |
1560 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2582 | once_cb_io (EV_P_ ev_io *w, int revents) |
1561 | { |
2583 | { |
1562 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2584 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1563 | } |
2585 | } |
1564 | |
2586 | |
1565 | static void |
2587 | static void |
1566 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2588 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1567 | { |
2589 | { |
1568 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2590 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1569 | } |
2591 | } |
1570 | |
2592 | |
1571 | void |
2593 | void |
1572 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2594 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1573 | { |
2595 | { |
1574 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2596 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1575 | |
2597 | |
1576 | if (!once) |
2598 | if (expect_false (!once)) |
|
|
2599 | { |
1577 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2600 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1578 | else |
2601 | return; |
1579 | { |
2602 | } |
|
|
2603 | |
1580 | once->cb = cb; |
2604 | once->cb = cb; |
1581 | once->arg = arg; |
2605 | once->arg = arg; |
1582 | |
2606 | |
1583 | ev_init (&once->io, once_cb_io); |
2607 | ev_init (&once->io, once_cb_io); |
1584 | if (fd >= 0) |
2608 | if (fd >= 0) |
1585 | { |
2609 | { |
1586 | ev_io_set (&once->io, fd, events); |
2610 | ev_io_set (&once->io, fd, events); |
1587 | ev_io_start (EV_A_ &once->io); |
2611 | ev_io_start (EV_A_ &once->io); |
1588 | } |
2612 | } |
1589 | |
2613 | |
1590 | ev_init (&once->to, once_cb_to); |
2614 | ev_init (&once->to, once_cb_to); |
1591 | if (timeout >= 0.) |
2615 | if (timeout >= 0.) |
1592 | { |
2616 | { |
1593 | ev_timer_set (&once->to, timeout, 0.); |
2617 | ev_timer_set (&once->to, timeout, 0.); |
1594 | ev_timer_start (EV_A_ &once->to); |
2618 | ev_timer_start (EV_A_ &once->to); |
1595 | } |
|
|
1596 | } |
2619 | } |
1597 | } |
2620 | } |
1598 | |
2621 | |
|
|
2622 | #if EV_MULTIPLICITY |
|
|
2623 | #include "ev_wrap.h" |
|
|
2624 | #endif |
|
|
2625 | |
|
|
2626 | #ifdef __cplusplus |
|
|
2627 | } |
|
|
2628 | #endif |
|
|
2629 | |