1 | /* |
1 | /* |
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2 | * libev native API header |
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3 | * |
2 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
3 | * All rights reserved. |
5 | * All rights reserved. |
4 | * |
6 | * |
5 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
6 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
7 | * 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. |
8 | * |
27 | * |
9 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
10 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
11 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
12 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
13 | * 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 |
14 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
15 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
16 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
18 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
19 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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20 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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21 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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22 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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23 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | */ |
38 | */ |
29 | |
39 | |
30 | #ifndef EV_H__ |
40 | #ifndef EV_H_ |
31 | #define EV_H__ |
41 | #define EV_H_ |
32 | |
42 | |
33 | #ifdef __cplusplus |
43 | #ifdef __cplusplus |
34 | extern "C" { |
44 | extern "C" { |
35 | #endif |
45 | #endif |
36 | |
46 | |
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47 | /*****************************************************************************/ |
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48 | |
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49 | #ifndef EV_FEATURES |
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50 | # define EV_FEATURES 0x7f |
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51 | #endif |
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52 | |
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53 | #define EV_FEATURE_CODE ((EV_FEATURES) & 1) |
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54 | #define EV_FEATURE_DATA ((EV_FEATURES) & 2) |
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55 | #define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) |
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56 | #define EV_FEATURE_API ((EV_FEATURES) & 8) |
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57 | #define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16) |
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58 | #define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32) |
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59 | #define EV_FEATURE_OS ((EV_FEATURES) & 64) |
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60 | |
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61 | /* these priorities are inclusive, higher priorities will be invoked earlier */ |
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62 | #ifndef EV_MINPRI |
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63 | # define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0) |
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64 | #endif |
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65 | #ifndef EV_MAXPRI |
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66 | # define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0) |
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67 | #endif |
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68 | |
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69 | #ifndef EV_MULTIPLICITY |
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70 | # define EV_MULTIPLICITY EV_FEATURE_CONFIG |
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71 | #endif |
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72 | |
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73 | #ifndef EV_PERIODIC_ENABLE |
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74 | # define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS |
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75 | #endif |
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76 | |
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77 | #ifndef EV_STAT_ENABLE |
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78 | # define EV_STAT_ENABLE EV_FEATURE_WATCHERS |
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79 | #endif |
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80 | |
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81 | #ifndef EV_PREPARE_ENABLE |
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82 | # define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS |
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83 | #endif |
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84 | |
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85 | #ifndef EV_CHECK_ENABLE |
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86 | # define EV_CHECK_ENABLE EV_FEATURE_WATCHERS |
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87 | #endif |
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88 | |
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89 | #ifndef EV_IDLE_ENABLE |
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90 | # define EV_IDLE_ENABLE EV_FEATURE_WATCHERS |
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91 | #endif |
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92 | |
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93 | #ifndef EV_FORK_ENABLE |
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94 | # define EV_FORK_ENABLE EV_FEATURE_WATCHERS |
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95 | #endif |
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96 | |
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97 | #ifndef EV_SIGNAL_ENABLE |
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98 | # define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS |
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99 | #endif |
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100 | |
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101 | #ifndef EV_CHILD_ENABLE |
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102 | # ifdef _WIN32 |
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103 | # define EV_CHILD_ENABLE 0 |
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104 | # else |
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105 | # define EV_CHILD_ENABLE EV_FEATURE_WATCHERS |
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106 | #endif |
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107 | #endif |
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108 | |
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109 | #ifndef EV_ASYNC_ENABLE |
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110 | # define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS |
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111 | #endif |
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112 | |
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113 | #ifndef EV_EMBED_ENABLE |
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114 | # define EV_EMBED_ENABLE EV_FEATURE_WATCHERS |
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115 | #endif |
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116 | |
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117 | #ifndef EV_WALK_ENABLE |
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118 | # define EV_WALK_ENABLE 0 /* not yet */ |
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119 | #endif |
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120 | |
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121 | /*****************************************************************************/ |
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122 | |
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123 | #if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE |
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124 | # undef EV_SIGNAL_ENABLE |
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125 | # define EV_SIGNAL_ENABLE 1 |
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126 | #endif |
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127 | |
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128 | /*****************************************************************************/ |
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129 | |
37 | typedef double ev_tstamp; |
130 | typedef double ev_tstamp; |
38 | |
131 | |
39 | /* these priorities are inclusive, higher priorities will be called earlier */ |
132 | #ifndef EV_ATOMIC_T |
40 | #ifndef EV_MINPRI |
133 | # include <signal.h> |
41 | # define EV_MINPRI -2 |
134 | # define EV_ATOMIC_T sig_atomic_t volatile |
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135 | #endif |
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136 | |
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137 | #if EV_STAT_ENABLE |
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138 | # ifdef _WIN32 |
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139 | # include <time.h> |
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140 | # include <sys/types.h> |
42 | #endif |
141 | # endif |
43 | #ifndef EV_MAXPRI |
142 | # include <sys/stat.h> |
44 | # define EV_MAXPRI +2 |
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45 | #endif |
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46 | |
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47 | #ifndef EV_MULTIPLICITY |
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48 | # define EV_MULTIPLICITY 1 |
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49 | #endif |
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50 | |
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51 | #ifndef EV_PERIODICS |
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52 | # define EV_PERIODICS 1 |
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53 | #endif |
143 | #endif |
54 | |
144 | |
55 | /* support multiple event loops? */ |
145 | /* support multiple event loops? */ |
56 | #if EV_MULTIPLICITY |
146 | #if EV_MULTIPLICITY |
57 | struct ev_loop; |
147 | struct ev_loop; |
58 | # define EV_P struct ev_loop *loop |
148 | # define EV_P struct ev_loop *loop |
59 | # define EV_P_ EV_P, |
149 | # define EV_P_ EV_P, |
60 | # define EV_A loop |
150 | # define EV_A loop |
61 | # define EV_A_ EV_A, |
151 | # define EV_A_ EV_A, |
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152 | # define EV_DEFAULT_UC ev_default_loop_uc () |
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153 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, |
62 | # define EV_DEFAULT_A ev_default_loop (0) |
154 | # define EV_DEFAULT ev_default_loop (0) |
63 | # define EV_DEFAULT_A_ EV_DEFAULT_A, |
155 | # define EV_DEFAULT_ EV_DEFAULT, |
64 | #else |
156 | #else |
65 | # define EV_P void |
157 | # define EV_P void |
66 | # define EV_P_ |
158 | # define EV_P_ |
67 | # define EV_A |
159 | # define EV_A |
68 | # define EV_A_ |
160 | # define EV_A_ |
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161 | # define EV_DEFAULT |
69 | # define EV_DEFAULT_A |
162 | # define EV_DEFAULT_ |
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163 | # define EV_DEFAULT_UC |
70 | # define EV_DEFAULT_A_ |
164 | # define EV_DEFAULT_UC_ |
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165 | # undef EV_EMBED_ENABLE |
71 | #endif |
166 | #endif |
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167 | |
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168 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
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169 | # define EV_INLINE static inline |
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170 | #else |
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171 | # define EV_INLINE static |
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172 | #endif |
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173 | |
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174 | #ifndef EV_PROTOTYPES |
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175 | # define EV_PROTOTYPES 1 |
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176 | #endif |
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177 | |
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178 | /*****************************************************************************/ |
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179 | |
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180 | #define EV_VERSION_MAJOR 4 |
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181 | #define EV_VERSION_MINOR 0 |
72 | |
182 | |
73 | /* eventmask, revents, events... */ |
183 | /* eventmask, revents, events... */ |
74 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
184 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
75 | #define EV_NONE 0x00 |
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76 | #define EV_READ 0x01 /* io only */ |
185 | #define EV_NONE 0x00 /* no events */ |
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186 | #define EV_READ 0x01 /* ev_io detected read will not block */ |
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187 | #define EV_WRITE 0x02 /* ev_io detected write will not block */ |
77 | #define EV_WRITE 0x02 /* io only */ |
188 | #define EV__IOFDSET 0x80 /* internal use only */ |
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189 | #define EV_IO EV_READ /* alias for type-detection */ |
78 | #define EV_TIMEOUT 0x000100 /* timer only */ |
190 | #define EV_TIMER 0x00000100 /* timer timed out */ |
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191 | #define EV_TIMEOUT EV_TIMER /* pre 4.0 API compatibility */ |
79 | #define EV_PERIODIC 0x000200 /* periodic timer only */ |
192 | #define EV_PERIODIC 0x00000200 /* periodic timer timed out */ |
80 | #define EV_SIGNAL 0x000400 /* signal only */ |
193 | #define EV_SIGNAL 0x00000400 /* signal was received */ |
81 | #define EV_IDLE 0x000800 /* idle only */ |
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82 | #define EV_CHECK 0x001000 /* check only */ |
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83 | #define EV_PREPARE 0x002000 /* prepare only */ |
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84 | #define EV_CHILD 0x004000 /* child/pid only */ |
194 | #define EV_CHILD 0x00000800 /* child/pid had status change */ |
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195 | #define EV_STAT 0x00001000 /* stat data changed */ |
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196 | #define EV_IDLE 0x00002000 /* event loop is idling */ |
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197 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
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198 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
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199 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
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200 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
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201 | #define EV_ASYNC 0x00040000 /* async intra-loop signal */ |
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202 | #define EV_CUSTOM 0x01000000 /* for use by user code */ |
85 | #define EV_ERROR 0x800000 /* sent when an error occurs */ |
203 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
86 | |
204 | |
87 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
205 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
88 | #ifndef EV_COMMON |
206 | #ifndef EV_COMMON |
89 | # define EV_COMMON void *data; |
207 | # define EV_COMMON void *data; |
90 | #endif |
208 | #endif |
91 | #ifndef EV_PROTOTYPES |
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92 | # define EV_PROTOTYPES 1 |
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93 | #endif |
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94 | |
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95 | #define EV_VERSION_MAJOR 1 |
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96 | #define EV_VERSION_MINOR 1 |
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97 | |
209 | |
98 | #ifndef EV_CB_DECLARE |
210 | #ifndef EV_CB_DECLARE |
99 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
211 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
100 | #endif |
212 | #endif |
101 | #ifndef EV_CB_INVOKE |
213 | #ifndef EV_CB_INVOKE |
102 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
214 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
103 | #endif |
215 | #endif |
104 | |
216 | |
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217 | /* not official, do not use */ |
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218 | #define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents) |
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219 | |
105 | /* |
220 | /* |
106 | * struct member types: |
221 | * struct member types: |
107 | * private: you can look at them, but not change them, and they might not mean anything to you. |
222 | * private: you may look at them, but not change them, |
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223 | * and they might not mean anything to you. |
108 | * ro: can be read anytime, but only changed when the watcher isn't active |
224 | * ro: can be read anytime, but only changed when the watcher isn't active. |
109 | * rw: can be read and modified anytime, even when the watcher is active |
225 | * rw: can be read and modified anytime, even when the watcher is active. |
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226 | * |
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227 | * some internal details that might be helpful for debugging: |
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228 | * |
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229 | * active is either 0, which means the watcher is not active, |
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230 | * or the array index of the watcher (periodics, timers) |
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231 | * or the array index + 1 (most other watchers) |
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232 | * or simply 1 for watchers that aren't in some array. |
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233 | * pending is either 0, in which case the watcher isn't, |
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234 | * or the array index + 1 in the pendings array. |
110 | */ |
235 | */ |
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236 | |
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237 | #if EV_MINPRI == EV_MAXPRI |
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238 | # define EV_DECL_PRIORITY |
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239 | #elif !defined (EV_DECL_PRIORITY) |
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240 | # define EV_DECL_PRIORITY int priority; |
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241 | #endif |
111 | |
242 | |
112 | /* shared by all watchers */ |
243 | /* shared by all watchers */ |
113 | #define EV_WATCHER(type) \ |
244 | #define EV_WATCHER(type) \ |
114 | int active; /* private */ \ |
245 | int active; /* private */ \ |
115 | int pending; /* private */ \ |
246 | int pending; /* private */ \ |
116 | int priority; /* private */ \ |
247 | EV_DECL_PRIORITY /* private */ \ |
117 | EV_COMMON /* rw */ \ |
248 | EV_COMMON /* rw */ \ |
118 | EV_CB_DECLARE (type) /* private */ |
249 | EV_CB_DECLARE (type) /* private */ |
119 | |
250 | |
120 | #define EV_WATCHER_LIST(type) \ |
251 | #define EV_WATCHER_LIST(type) \ |
121 | EV_WATCHER (type) \ |
252 | EV_WATCHER (type) \ |
… | |
… | |
124 | #define EV_WATCHER_TIME(type) \ |
255 | #define EV_WATCHER_TIME(type) \ |
125 | EV_WATCHER (type) \ |
256 | EV_WATCHER (type) \ |
126 | ev_tstamp at; /* private */ |
257 | ev_tstamp at; /* private */ |
127 | |
258 | |
128 | /* base class, nothing to see here unless you subclass */ |
259 | /* base class, nothing to see here unless you subclass */ |
129 | struct ev_watcher |
260 | typedef struct ev_watcher |
130 | { |
261 | { |
131 | EV_WATCHER (ev_watcher) |
262 | EV_WATCHER (ev_watcher) |
132 | }; |
263 | } ev_watcher; |
133 | |
264 | |
134 | /* base class, nothing to see here unless you subclass */ |
265 | /* base class, nothing to see here unless you subclass */ |
135 | struct ev_watcher_list |
266 | typedef struct ev_watcher_list |
136 | { |
267 | { |
137 | EV_WATCHER_LIST (ev_watcher_list) |
268 | EV_WATCHER_LIST (ev_watcher_list) |
138 | }; |
269 | } ev_watcher_list; |
139 | |
270 | |
140 | /* base class, nothing to see here unless you subclass */ |
271 | /* base class, nothing to see here unless you subclass */ |
141 | struct ev_watcher_time |
272 | typedef struct ev_watcher_time |
142 | { |
273 | { |
143 | EV_WATCHER_TIME (ev_watcher_time) |
274 | EV_WATCHER_TIME (ev_watcher_time) |
144 | }; |
275 | } ev_watcher_time; |
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276 | |
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277 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
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278 | /* revent EV_READ, EV_WRITE */ |
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279 | typedef struct ev_io |
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280 | { |
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281 | EV_WATCHER_LIST (ev_io) |
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282 | |
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283 | int fd; /* ro */ |
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284 | int events; /* ro */ |
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285 | } ev_io; |
145 | |
286 | |
146 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
287 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
147 | /* revent EV_TIMEOUT */ |
288 | /* revent EV_TIMEOUT */ |
148 | struct ev_timer |
289 | typedef struct ev_timer |
149 | { |
290 | { |
150 | EV_WATCHER_TIME (ev_timer) |
291 | EV_WATCHER_TIME (ev_timer) |
151 | |
292 | |
152 | ev_tstamp repeat; /* rw */ |
293 | ev_tstamp repeat; /* rw */ |
153 | }; |
294 | } ev_timer; |
154 | |
295 | |
155 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
296 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
156 | /* revent EV_PERIODIC */ |
297 | /* revent EV_PERIODIC */ |
157 | struct ev_periodic |
298 | typedef struct ev_periodic |
158 | { |
299 | { |
159 | EV_WATCHER_TIME (ev_periodic) |
300 | EV_WATCHER_TIME (ev_periodic) |
160 | |
301 | |
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302 | ev_tstamp offset; /* rw */ |
161 | ev_tstamp interval; /* rw */ |
303 | ev_tstamp interval; /* rw */ |
162 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
304 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
163 | }; |
305 | } ev_periodic; |
164 | |
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165 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
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166 | /* revent EV_READ, EV_WRITE */ |
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167 | struct ev_io |
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168 | { |
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169 | EV_WATCHER_LIST (ev_io) |
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170 | |
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171 | int fd; /* ro */ |
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172 | int events; /* ro */ |
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173 | }; |
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174 | |
306 | |
175 | /* invoked when the given signal has been received */ |
307 | /* invoked when the given signal has been received */ |
176 | /* revent EV_SIGNAL */ |
308 | /* revent EV_SIGNAL */ |
177 | struct ev_signal |
309 | typedef struct ev_signal |
178 | { |
310 | { |
179 | EV_WATCHER_LIST (ev_signal) |
311 | EV_WATCHER_LIST (ev_signal) |
180 | |
312 | |
181 | int signum; /* ro */ |
313 | int signum; /* ro */ |
182 | }; |
314 | } ev_signal; |
183 | |
315 | |
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316 | /* invoked when sigchld is received and waitpid indicates the given pid */ |
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317 | /* revent EV_CHILD */ |
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318 | /* does not support priorities */ |
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319 | typedef struct ev_child |
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320 | { |
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321 | EV_WATCHER_LIST (ev_child) |
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322 | |
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323 | int flags; /* private */ |
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324 | int pid; /* ro */ |
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325 | int rpid; /* rw, holds the received pid */ |
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326 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
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327 | } ev_child; |
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328 | |
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329 | #if EV_STAT_ENABLE |
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330 | /* st_nlink = 0 means missing file or other error */ |
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331 | # ifdef _WIN32 |
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332 | typedef struct _stati64 ev_statdata; |
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333 | # else |
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334 | typedef struct stat ev_statdata; |
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335 | # endif |
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336 | |
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337 | /* invoked each time the stat data changes for a given path */ |
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338 | /* revent EV_STAT */ |
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339 | typedef struct ev_stat |
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340 | { |
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341 | EV_WATCHER_LIST (ev_stat) |
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342 | |
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343 | ev_timer timer; /* private */ |
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344 | ev_tstamp interval; /* ro */ |
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345 | const char *path; /* ro */ |
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346 | ev_statdata prev; /* ro */ |
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347 | ev_statdata attr; /* ro */ |
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348 | |
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349 | int wd; /* wd for inotify, fd for kqueue */ |
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350 | } ev_stat; |
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351 | #endif |
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352 | |
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353 | #if EV_IDLE_ENABLE |
184 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
354 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
185 | /* revent EV_IDLE */ |
355 | /* revent EV_IDLE */ |
186 | struct ev_idle |
356 | typedef struct ev_idle |
187 | { |
357 | { |
188 | EV_WATCHER (ev_idle) |
358 | EV_WATCHER (ev_idle) |
189 | }; |
359 | } ev_idle; |
|
|
360 | #endif |
190 | |
361 | |
191 | /* invoked for each run of the mainloop, just before the blocking call */ |
362 | /* invoked for each run of the mainloop, just before the blocking call */ |
192 | /* you can still change events in any way you like */ |
363 | /* you can still change events in any way you like */ |
193 | /* revent EV_PREPARE */ |
364 | /* revent EV_PREPARE */ |
194 | struct ev_prepare |
365 | typedef struct ev_prepare |
195 | { |
366 | { |
196 | EV_WATCHER (ev_prepare) |
367 | EV_WATCHER (ev_prepare) |
197 | }; |
368 | } ev_prepare; |
198 | |
369 | |
199 | /* invoked for each run of the mainloop, just after the blocking call */ |
370 | /* invoked for each run of the mainloop, just after the blocking call */ |
200 | /* revent EV_CHECK */ |
371 | /* revent EV_CHECK */ |
201 | struct ev_check |
372 | typedef struct ev_check |
202 | { |
373 | { |
203 | EV_WATCHER (ev_check) |
374 | EV_WATCHER (ev_check) |
204 | }; |
375 | } ev_check; |
205 | |
376 | |
206 | /* invoked when sigchld is received and waitpid indicates the given pid */ |
377 | #if EV_FORK_ENABLE |
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378 | /* the callback gets invoked before check in the child process when a fork was detected */ |
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379 | typedef struct ev_fork |
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380 | { |
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381 | EV_WATCHER (ev_fork) |
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382 | } ev_fork; |
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383 | #endif |
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384 | |
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385 | #if EV_EMBED_ENABLE |
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386 | /* used to embed an event loop inside another */ |
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387 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
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388 | typedef struct ev_embed |
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389 | { |
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390 | EV_WATCHER (ev_embed) |
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391 | |
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392 | struct ev_loop *other; /* ro */ |
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393 | ev_io io; /* private */ |
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394 | ev_prepare prepare; /* private */ |
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395 | ev_check check; /* unused */ |
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396 | ev_timer timer; /* unused */ |
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397 | ev_periodic periodic; /* unused */ |
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398 | ev_idle idle; /* unused */ |
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399 | ev_fork fork; /* private */ |
|
|
400 | } ev_embed; |
|
|
401 | #endif |
|
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402 | |
|
|
403 | #if EV_ASYNC_ENABLE |
|
|
404 | /* invoked when somebody calls ev_async_send on the watcher */ |
207 | /* revent EV_CHILD */ |
405 | /* revent EV_ASYNC */ |
208 | /* does not support priorities */ |
406 | typedef struct ev_async |
209 | struct ev_child |
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|
210 | { |
407 | { |
211 | EV_WATCHER_LIST (ev_child) |
408 | EV_WATCHER (ev_async) |
212 | |
409 | |
213 | int pid; /* ro */ |
410 | EV_ATOMIC_T sent; /* private */ |
214 | int rpid; /* rw, holds the received pid */ |
411 | } ev_async; |
215 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
412 | |
216 | }; |
413 | # define ev_async_pending(w) (+(w)->sent) |
|
|
414 | #endif |
217 | |
415 | |
218 | /* the presence of this union forces similar struct layout */ |
416 | /* the presence of this union forces similar struct layout */ |
219 | union ev_any_watcher |
417 | union ev_any_watcher |
220 | { |
418 | { |
221 | struct ev_watcher w; |
419 | struct ev_watcher w; |
222 | struct ev_watcher_list wl; |
420 | struct ev_watcher_list wl; |
223 | |
421 | |
224 | struct ev_io io; |
422 | struct ev_io io; |
225 | struct ev_timer timer; |
423 | struct ev_timer timer; |
226 | struct ev_periodic periodic; |
424 | struct ev_periodic periodic; |
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|
425 | struct ev_signal signal; |
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|
426 | struct ev_child child; |
|
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427 | #if EV_STAT_ENABLE |
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428 | struct ev_stat stat; |
|
|
429 | #endif |
|
|
430 | #if EV_IDLE_ENABLE |
227 | struct ev_idle idle; |
431 | struct ev_idle idle; |
|
|
432 | #endif |
228 | struct ev_prepare prepare; |
433 | struct ev_prepare prepare; |
229 | struct ev_check check; |
434 | struct ev_check check; |
230 | struct ev_signal signal; |
435 | #if EV_FORK_ENABLE |
231 | struct ev_child child; |
436 | struct ev_fork fork; |
|
|
437 | #endif |
|
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438 | #if EV_EMBED_ENABLE |
|
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439 | struct ev_embed embed; |
|
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440 | #endif |
|
|
441 | #if EV_ASYNC_ENABLE |
|
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442 | struct ev_async async; |
|
|
443 | #endif |
232 | }; |
444 | }; |
233 | |
445 | |
234 | /* bits for ev_default_loop and ev_loop_new */ |
446 | /* bits for ev_default_loop and ev_loop_new */ |
235 | /* the default */ |
447 | /* the default */ |
236 | #define EVFLAG_AUTO 0x00000000 /* not quite a mask */ |
448 | #define EVFLAG_AUTO 0x00000000U /* not quite a mask */ |
237 | |
449 | /* flag bits */ |
|
|
450 | #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ |
|
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451 | #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ |
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452 | /* debugging/feature disable */ |
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453 | #define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */ |
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454 | #define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */ |
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455 | #define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */ |
238 | /* method bits to be ored together */ |
456 | /* method bits to be ored together */ |
239 | #define EVMETHOD_SELECT 0x00000001 /* about anywhere */ |
457 | #define EVBACKEND_SELECT 0x00000001U /* about anywhere */ |
240 | #define EVMETHOD_POLL 0x00000002 /* !win */ |
458 | #define EVBACKEND_POLL 0x00000002U /* !win */ |
241 | #define EVMETHOD_EPOLL 0x00000004 /* linux */ |
459 | #define EVBACKEND_EPOLL 0x00000004U /* linux */ |
242 | #define EVMETHOD_KQUEUE 0x00000008 /* bsd */ |
460 | #define EVBACKEND_KQUEUE 0x00000008U /* bsd */ |
243 | #define EVMETHOD_DEVPOLL 0x00000010 /* solaris 8 */ /* NYI */ |
461 | #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ |
244 | #define EVMETHOD_PORT 0x00000020 /* solaris 10 */ /* NYI */ |
462 | #define EVBACKEND_PORT 0x00000020U /* solaris 10 */ |
245 | |
463 | #define EVBACKEND_ALL 0x0000003FU |
246 | /* flag bits */ |
|
|
247 | #define EVFLAG_NOENV 0x01000000 /* do NOT consult environment */ |
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248 | |
464 | |
249 | #if EV_PROTOTYPES |
465 | #if EV_PROTOTYPES |
250 | int ev_version_major (void); |
466 | int ev_version_major (void); |
251 | int ev_version_minor (void); |
467 | int ev_version_minor (void); |
252 | |
468 | |
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|
469 | unsigned int ev_supported_backends (void); |
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470 | unsigned int ev_recommended_backends (void); |
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471 | unsigned int ev_embeddable_backends (void); |
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472 | |
253 | ev_tstamp ev_time (void); |
473 | ev_tstamp ev_time (void); |
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474 | void ev_sleep (ev_tstamp delay); /* sleep for a while */ |
254 | |
475 | |
255 | /* Sets the allocation function to use, works like realloc. |
476 | /* Sets the allocation function to use, works like realloc. |
256 | * It is used to allocate and free memory. |
477 | * It is used to allocate and free memory. |
257 | * If it returns zero when memory needs to be allocated, the library might abort |
478 | * If it returns zero when memory needs to be allocated, the library might abort |
258 | * or take some potentially destructive action. |
479 | * or take some potentially destructive action. |
… | |
… | |
264 | * retryable syscall error |
485 | * retryable syscall error |
265 | * (such as failed select, poll, epoll_wait) |
486 | * (such as failed select, poll, epoll_wait) |
266 | */ |
487 | */ |
267 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
488 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
268 | |
489 | |
269 | # if EV_MULTIPLICITY |
490 | #if EV_MULTIPLICITY |
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491 | EV_INLINE struct ev_loop * |
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492 | ev_default_loop_uc (void) |
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493 | { |
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494 | extern struct ev_loop *ev_default_loop_ptr; |
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495 | |
|
|
496 | return ev_default_loop_ptr; |
|
|
497 | } |
|
|
498 | |
270 | /* the default loop is the only one that handles signals and child watchers */ |
499 | /* the default loop is the only one that handles signals and child watchers */ |
271 | /* you can call this as often as you like */ |
500 | /* you can call this as often as you like */ |
272 | static struct ev_loop * |
501 | EV_INLINE struct ev_loop * |
273 | ev_default_loop (unsigned int flags) |
502 | ev_default_loop (unsigned int flags) |
274 | { |
503 | { |
275 | extern struct ev_loop *ev_default_loop_ptr; |
504 | struct ev_loop *loop = ev_default_loop_uc (); |
|
|
505 | |
|
|
506 | if (!loop) |
|
|
507 | { |
276 | extern struct ev_loop *ev_default_loop_ (unsigned int flags); |
508 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
277 | |
509 | |
278 | if (!ev_default_loop_ptr) |
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279 | ev_default_loop_ (flags); |
510 | loop = ev_default_loop_init (flags); |
|
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511 | } |
280 | |
512 | |
281 | return ev_default_loop_ptr; |
513 | return loop; |
282 | } |
514 | } |
283 | |
515 | |
284 | /* create and destroy alternative loops that don't handle signals */ |
516 | /* create and destroy alternative loops that don't handle signals */ |
285 | struct ev_loop *ev_loop_new (unsigned int flags); |
517 | struct ev_loop *ev_loop_new (unsigned int flags); |
286 | void ev_loop_destroy (EV_P); |
518 | void ev_loop_destroy (EV_P); |
287 | void ev_loop_fork (EV_P); |
519 | void ev_loop_fork (EV_P); |
288 | |
520 | |
289 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
521 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
290 | |
522 | |
291 | # else |
523 | #else |
292 | |
524 | |
293 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
525 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
294 | |
526 | |
295 | static ev_tstamp |
527 | EV_INLINE ev_tstamp |
296 | ev_now (void) |
528 | ev_now (void) |
297 | { |
529 | { |
298 | extern ev_tstamp ev_rt_now; |
530 | extern ev_tstamp ev_rt_now; |
299 | |
531 | |
300 | return ev_rt_now; |
532 | return ev_rt_now; |
301 | } |
533 | } |
|
|
534 | #endif /* multiplicity */ |
|
|
535 | |
|
|
536 | EV_INLINE int |
|
|
537 | ev_is_default_loop (EV_P) |
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|
538 | { |
|
|
539 | #if EV_MULTIPLICITY |
|
|
540 | extern struct ev_loop *ev_default_loop_ptr; |
|
|
541 | |
|
|
542 | return !!(EV_A == ev_default_loop_ptr); |
|
|
543 | #else |
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|
544 | return 1; |
302 | # endif |
545 | #endif |
|
|
546 | } |
303 | |
547 | |
304 | void ev_default_destroy (void); /* destroy the default loop */ |
548 | void ev_default_destroy (void); /* destroy the default loop */ |
305 | /* this needs to be called after fork, to duplicate the default loop */ |
549 | /* this needs to be called after fork, to duplicate the default loop */ |
306 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
550 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
307 | /* you can call it in either the parent or the child */ |
551 | /* you can call it in either the parent or the child */ |
308 | /* you can actually call it at any time, anywhere :) */ |
552 | /* you can actually call it at any time, anywhere :) */ |
309 | void ev_default_fork (void); |
553 | void ev_default_fork (void); |
310 | |
554 | |
311 | unsigned int ev_method (EV_P); |
555 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
|
|
556 | |
|
|
557 | void ev_now_update (EV_P); /* update event loop time */ |
|
|
558 | |
|
|
559 | #if EV_WALK_ENABLE |
|
|
560 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
|
|
561 | /* callback on every such watcher. The callback might stop the watcher, */ |
|
|
562 | /* but do nothing else with the loop */ |
|
|
563 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
312 | #endif |
564 | #endif |
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|
565 | |
|
|
566 | #endif /* prototypes */ |
313 | |
567 | |
314 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
568 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
315 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
569 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
|
|
570 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
316 | #define EVUNLOOP_ONE 1 /* unloop once */ |
571 | #define EVUNLOOP_ONE 1 /* unloop once */ |
317 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
572 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
318 | |
573 | |
319 | #if EV_PROTOTYPES |
574 | #if EV_PROTOTYPES |
320 | void ev_loop (EV_P_ int flags); |
575 | void ev_loop (EV_P_ int flags); |
321 | void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
576 | void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
322 | |
577 | |
323 | /* |
578 | /* |
324 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
579 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
325 | * keeps one reference. if you have a long-runing watcher you never unregister that |
580 | * keeps one reference. if you have a long-running watcher you never unregister that |
326 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
581 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
327 | */ |
582 | */ |
328 | void ev_ref (EV_P); |
583 | void ev_ref (EV_P); |
329 | void ev_unref (EV_P); |
584 | void ev_unref (EV_P); |
330 | |
585 | |
|
|
586 | /* |
331 | /* convinience function, wait for a single event, without registering an event watcher */ |
587 | * convenience function, wait for a single event, without registering an event watcher |
332 | /* if timeout is < 0, do wait indefinitely */ |
588 | * if timeout is < 0, do wait indefinitely |
|
|
589 | */ |
333 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
590 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
|
|
591 | |
|
|
592 | # if EV_FEATURE_API |
|
|
593 | unsigned int ev_iteration (EV_P); /* number of loop iterations */ |
|
|
594 | unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
|
|
595 | void ev_verify (EV_P); /* abort if loop data corrupted */ |
|
|
596 | |
|
|
597 | /* pre 4.0 API compatibility */ |
|
|
598 | # if EV_MULTIPLICITY |
|
|
599 | # define ev_loop_count(l) ev_iteration (l) |
|
|
600 | # define ev_loop_depth(l) ev_depth (l) |
|
|
601 | # define ev_loop_verify(l) ev_verify (l) |
|
|
602 | # endif |
|
|
603 | |
|
|
604 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
|
|
605 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
|
|
606 | |
|
|
607 | /* advanced stuff for threading etc. support, see docs */ |
|
|
608 | void ev_set_userdata (EV_P_ void *data); |
|
|
609 | void *ev_userdata (EV_P); |
|
|
610 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); |
|
|
611 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); |
|
|
612 | |
|
|
613 | unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ |
|
|
614 | void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
|
|
615 | |
|
|
616 | /* |
|
|
617 | * stop/start the timer handling. |
|
|
618 | */ |
|
|
619 | void ev_suspend (EV_P); |
|
|
620 | void ev_resume (EV_P); |
|
|
621 | #endif |
|
|
622 | |
334 | #endif |
623 | #endif |
335 | |
624 | |
336 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
625 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
337 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
626 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
338 | #define ev_init(ev,cb_) do { \ |
627 | #define ev_init(ev,cb_) do { \ |
339 | ((struct ev_watcher *)(void *)(ev))->active = \ |
628 | ((ev_watcher *)(void *)(ev))->active = \ |
340 | ((struct ev_watcher *)(void *)(ev))->pending = \ |
629 | ((ev_watcher *)(void *)(ev))->pending = 0; \ |
341 | ((struct ev_watcher *)(void *)(ev))->priority = 0; \ |
630 | ev_set_priority ((ev), 0); \ |
342 | ev_set_cb ((ev), cb_); \ |
631 | ev_set_cb ((ev), cb_); \ |
343 | } while (0) |
632 | } while (0) |
344 | |
633 | |
345 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
634 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
346 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
635 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
347 | #define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
636 | #define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0) |
348 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
637 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
|
|
638 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
|
|
639 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
349 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
640 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
350 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
641 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
351 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
642 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
352 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
643 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
|
|
644 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
|
|
645 | #define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
353 | |
646 | |
354 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
647 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
355 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
648 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
356 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
649 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
357 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
650 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
|
|
651 | #define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0) |
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652 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) |
358 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
653 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
359 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
654 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
360 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
655 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
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656 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
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657 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
361 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
658 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
362 | |
659 | |
363 | #define ev_is_pending(ev) (0 + ((struct ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
660 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
364 | #define ev_is_active(ev) (0 + ((struct ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
661 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
365 | |
662 | |
366 | #define ev_priority(ev) ((struct ev_watcher *)(void *)(ev))->priority /* rw */ |
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367 | #define ev_cb(ev) (ev)->cb /* rw */ |
663 | #define ev_cb(ev) (ev)->cb /* rw */ |
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664 | |
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665 | #if EV_MINPRI == EV_MAXPRI |
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666 | # define ev_priority(ev) ((ev), EV_MINPRI) |
368 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
667 | # define ev_set_priority(ev,pri) ((ev), (pri)) |
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668 | #else |
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669 | # define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority)) |
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670 | # define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) |
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671 | #endif |
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672 | |
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673 | #define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at) |
369 | |
674 | |
370 | #ifndef ev_set_cb |
675 | #ifndef ev_set_cb |
371 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
676 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
372 | #endif |
677 | #endif |
373 | |
678 | |
374 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
679 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
375 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
680 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
376 | #if EV_PROTOTYPES |
681 | #if EV_PROTOTYPES |
377 | |
682 | |
378 | /* feeds an event into a watcher as if the event actually occured */ |
683 | /* feeds an event into a watcher as if the event actually occured */ |
379 | /* accepts any ev_watcher type */ |
684 | /* accepts any ev_watcher type */ |
380 | void ev_feed_event (EV_P_ void *w, int revents); |
685 | void ev_feed_event (EV_P_ void *w, int revents); |
381 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
686 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
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687 | #if EV_SIGNAL_ENABLE |
382 | void ev_feed_signal_event (EV_P_ int signum); |
688 | void ev_feed_signal_event (EV_P_ int signum); |
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689 | #endif |
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690 | void ev_invoke (EV_P_ void *w, int revents); |
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691 | int ev_clear_pending (EV_P_ void *w); |
383 | |
692 | |
384 | void ev_io_start (EV_P_ struct ev_io *w); |
693 | void ev_io_start (EV_P_ ev_io *w); |
385 | void ev_io_stop (EV_P_ struct ev_io *w); |
694 | void ev_io_stop (EV_P_ ev_io *w); |
386 | |
695 | |
387 | void ev_timer_start (EV_P_ struct ev_timer *w); |
696 | void ev_timer_start (EV_P_ ev_timer *w); |
388 | void ev_timer_stop (EV_P_ struct ev_timer *w); |
697 | void ev_timer_stop (EV_P_ ev_timer *w); |
389 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
698 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
390 | void ev_timer_again (EV_P_ struct ev_timer *w); |
699 | void ev_timer_again (EV_P_ ev_timer *w); |
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700 | /* return remaining time */ |
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701 | ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); |
391 | |
702 | |
392 | #if EV_PERIODICS |
703 | #if EV_PERIODIC_ENABLE |
393 | void ev_periodic_start (EV_P_ struct ev_periodic *w); |
704 | void ev_periodic_start (EV_P_ ev_periodic *w); |
394 | void ev_periodic_stop (EV_P_ struct ev_periodic *w); |
705 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
395 | void ev_periodic_again (EV_P_ struct ev_periodic *w); |
706 | void ev_periodic_again (EV_P_ ev_periodic *w); |
396 | #endif |
707 | #endif |
397 | |
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398 | void ev_idle_start (EV_P_ struct ev_idle *w); |
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399 | void ev_idle_stop (EV_P_ struct ev_idle *w); |
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400 | |
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401 | void ev_prepare_start (EV_P_ struct ev_prepare *w); |
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402 | void ev_prepare_stop (EV_P_ struct ev_prepare *w); |
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403 | |
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404 | void ev_check_start (EV_P_ struct ev_check *w); |
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405 | void ev_check_stop (EV_P_ struct ev_check *w); |
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406 | |
708 | |
407 | /* only supported in the default loop */ |
709 | /* only supported in the default loop */ |
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710 | #if EV_SIGNAL_ENABLE |
408 | void ev_signal_start (EV_P_ struct ev_signal *w); |
711 | void ev_signal_start (EV_P_ ev_signal *w); |
409 | void ev_signal_stop (EV_P_ struct ev_signal *w); |
712 | void ev_signal_stop (EV_P_ ev_signal *w); |
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713 | #endif |
410 | |
714 | |
411 | /* only supported in the default loop */ |
715 | /* only supported in the default loop */ |
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716 | # if EV_CHILD_ENABLE |
412 | void ev_child_start (EV_P_ struct ev_child *w); |
717 | void ev_child_start (EV_P_ ev_child *w); |
413 | void ev_child_stop (EV_P_ struct ev_child *w); |
718 | void ev_child_stop (EV_P_ ev_child *w); |
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719 | # endif |
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720 | |
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721 | # if EV_STAT_ENABLE |
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722 | void ev_stat_start (EV_P_ ev_stat *w); |
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723 | void ev_stat_stop (EV_P_ ev_stat *w); |
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724 | void ev_stat_stat (EV_P_ ev_stat *w); |
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725 | # endif |
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726 | |
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727 | # if EV_IDLE_ENABLE |
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728 | void ev_idle_start (EV_P_ ev_idle *w); |
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729 | void ev_idle_stop (EV_P_ ev_idle *w); |
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730 | # endif |
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731 | |
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732 | #if EV_PREPARE_ENABLE |
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733 | void ev_prepare_start (EV_P_ ev_prepare *w); |
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734 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
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735 | #endif |
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736 | |
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737 | #if EV_CHECK_ENABLE |
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738 | void ev_check_start (EV_P_ ev_check *w); |
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739 | void ev_check_stop (EV_P_ ev_check *w); |
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740 | #endif |
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741 | |
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742 | # if EV_FORK_ENABLE |
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743 | void ev_fork_start (EV_P_ ev_fork *w); |
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744 | void ev_fork_stop (EV_P_ ev_fork *w); |
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745 | # endif |
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746 | |
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747 | # if EV_EMBED_ENABLE |
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748 | /* only supported when loop to be embedded is in fact embeddable */ |
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749 | void ev_embed_start (EV_P_ ev_embed *w); |
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750 | void ev_embed_stop (EV_P_ ev_embed *w); |
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751 | void ev_embed_sweep (EV_P_ ev_embed *w); |
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752 | # endif |
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753 | |
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754 | # if EV_ASYNC_ENABLE |
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755 | void ev_async_start (EV_P_ ev_async *w); |
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756 | void ev_async_stop (EV_P_ ev_async *w); |
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757 | void ev_async_send (EV_P_ ev_async *w); |
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758 | # endif |
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759 | |
414 | #endif |
760 | #endif |
415 | |
761 | |
416 | #ifdef __cplusplus |
762 | #ifdef __cplusplus |
417 | } |
763 | } |
418 | #endif |
764 | #endif |