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) 2007-2020 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: |
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8 | * |
9 | * |
9 | * * Redistributions of source code must retain the above copyright |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
11 | * |
12 | * |
12 | * * Redistributions in binary form must reproduce the above |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * copyright notice, this list of conditions and the following |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * disclaimer in the documentation and/or other materials provided |
15 | * documentation and/or other materials provided with the distribution. |
15 | * with the distribution. |
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16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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22 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
23 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | * |
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28 | * Alternatively, the contents of this file may be used under the terms of |
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29 | * the GNU General Public License ("GPL") version 2 or any later version, |
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30 | * in which case the provisions of the GPL are applicable instead of |
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31 | * the above. If you wish to allow the use of your version of this file |
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32 | * only under the terms of the GPL and not to allow others to use your |
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33 | * version of this file under the BSD license, indicate your decision |
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34 | * by deleting the provisions above and replace them with the notice |
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35 | * and other provisions required by the GPL. If you do not delete the |
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36 | * provisions above, a recipient may use your version of this file under |
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37 | * either the BSD or the GPL. |
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 | # define EV_CPP(x) x |
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45 | # if __cplusplus >= 201103L |
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46 | # define EV_NOEXCEPT noexcept |
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47 | # else |
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48 | # define EV_NOEXCEPT |
35 | #endif |
49 | # endif |
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50 | #else |
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51 | # define EV_CPP(x) |
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52 | # define EV_NOEXCEPT |
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53 | #endif |
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54 | #define EV_THROW EV_NOEXCEPT /* pre-4.25, do not use in new code */ |
36 | |
55 | |
37 | typedef double ev_tstamp; |
56 | EV_CPP(extern "C" {) |
38 | |
57 | |
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58 | /*****************************************************************************/ |
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59 | |
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60 | /* pre-4.0 compatibility */ |
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61 | #ifndef EV_COMPAT3 |
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62 | # define EV_COMPAT3 1 |
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63 | #endif |
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64 | |
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65 | #ifndef EV_FEATURES |
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66 | # if defined __OPTIMIZE_SIZE__ |
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67 | # define EV_FEATURES 0x7c |
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68 | # else |
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69 | # define EV_FEATURES 0x7f |
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70 | # endif |
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71 | #endif |
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72 | |
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73 | #define EV_FEATURE_CODE ((EV_FEATURES) & 1) |
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74 | #define EV_FEATURE_DATA ((EV_FEATURES) & 2) |
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75 | #define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) |
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76 | #define EV_FEATURE_API ((EV_FEATURES) & 8) |
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77 | #define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16) |
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78 | #define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32) |
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79 | #define EV_FEATURE_OS ((EV_FEATURES) & 64) |
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80 | |
39 | /* these priorities are inclusive, higher priorities will be called earlier */ |
81 | /* these priorities are inclusive, higher priorities will be invoked earlier */ |
40 | #ifndef EV_MINPRI |
82 | #ifndef EV_MINPRI |
41 | # define EV_MINPRI -2 |
83 | # define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0) |
42 | #endif |
84 | #endif |
43 | #ifndef EV_MAXPRI |
85 | #ifndef EV_MAXPRI |
44 | # define EV_MAXPRI +2 |
86 | # define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0) |
45 | #endif |
87 | #endif |
46 | |
88 | |
47 | #ifndef EV_MULTIPLICITY |
89 | #ifndef EV_MULTIPLICITY |
48 | # define EV_MULTIPLICITY 1 |
90 | # define EV_MULTIPLICITY EV_FEATURE_CONFIG |
49 | #endif |
91 | #endif |
50 | |
92 | |
51 | #ifndef EV_PERIODIC_ENABLE |
93 | #ifndef EV_PERIODIC_ENABLE |
52 | # define EV_PERIODIC_ENABLE 1 |
94 | # define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS |
53 | #endif |
95 | #endif |
54 | |
96 | |
55 | #ifndef EV_STAT_ENABLE |
97 | #ifndef EV_STAT_ENABLE |
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98 | # define EV_STAT_ENABLE EV_FEATURE_WATCHERS |
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99 | #endif |
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100 | |
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101 | #ifndef EV_PREPARE_ENABLE |
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102 | # define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS |
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103 | #endif |
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104 | |
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105 | #ifndef EV_CHECK_ENABLE |
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106 | # define EV_CHECK_ENABLE EV_FEATURE_WATCHERS |
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107 | #endif |
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108 | |
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109 | #ifndef EV_IDLE_ENABLE |
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110 | # define EV_IDLE_ENABLE EV_FEATURE_WATCHERS |
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111 | #endif |
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112 | |
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113 | #ifndef EV_FORK_ENABLE |
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114 | # define EV_FORK_ENABLE EV_FEATURE_WATCHERS |
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115 | #endif |
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116 | |
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117 | #ifndef EV_CLEANUP_ENABLE |
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118 | # define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS |
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119 | #endif |
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120 | |
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121 | #ifndef EV_SIGNAL_ENABLE |
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122 | # define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS |
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123 | #endif |
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124 | |
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125 | #ifndef EV_CHILD_ENABLE |
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126 | # ifdef _WIN32 |
56 | # define EV_STAT_ENABLE 1 |
127 | # define EV_CHILD_ENABLE 0 |
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128 | # else |
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129 | # define EV_CHILD_ENABLE EV_FEATURE_WATCHERS |
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130 | #endif |
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131 | #endif |
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132 | |
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133 | #ifndef EV_ASYNC_ENABLE |
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134 | # define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS |
57 | #endif |
135 | #endif |
58 | |
136 | |
59 | #ifndef EV_EMBED_ENABLE |
137 | #ifndef EV_EMBED_ENABLE |
60 | # define EV_EMBED_ENABLE 1 |
138 | # define EV_EMBED_ENABLE EV_FEATURE_WATCHERS |
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139 | #endif |
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140 | |
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141 | #ifndef EV_WALK_ENABLE |
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142 | # define EV_WALK_ENABLE 0 /* not yet */ |
61 | #endif |
143 | #endif |
62 | |
144 | |
63 | /*****************************************************************************/ |
145 | /*****************************************************************************/ |
64 | |
146 | |
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147 | #if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE |
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148 | # undef EV_SIGNAL_ENABLE |
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149 | # define EV_SIGNAL_ENABLE 1 |
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150 | #endif |
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151 | |
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152 | /*****************************************************************************/ |
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153 | |
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154 | #ifndef EV_TSTAMP_T |
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155 | # define EV_TSTAMP_T double |
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156 | #endif |
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157 | typedef EV_TSTAMP_T ev_tstamp; |
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158 | |
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159 | #include <string.h> /* for memmove */ |
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160 | |
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161 | #ifndef EV_ATOMIC_T |
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162 | # include <signal.h> |
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163 | # define EV_ATOMIC_T sig_atomic_t volatile |
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164 | #endif |
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165 | |
65 | #if EV_STAT_ENABLE |
166 | #if EV_STAT_ENABLE |
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167 | # ifdef _WIN32 |
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168 | # include <time.h> |
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169 | # include <sys/types.h> |
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170 | # endif |
66 | # include <sys/stat.h> |
171 | # include <sys/stat.h> |
67 | #endif |
172 | #endif |
68 | |
173 | |
69 | /* support multiple event loops? */ |
174 | /* support multiple event loops? */ |
70 | #if EV_MULTIPLICITY |
175 | #if EV_MULTIPLICITY |
71 | struct ev_loop; |
176 | struct ev_loop; |
72 | # define EV_P struct ev_loop *loop |
177 | # define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ |
73 | # define EV_P_ EV_P, |
178 | # define EV_P_ EV_P, /* a loop as first of multiple parameters */ |
74 | # define EV_A loop |
179 | # define EV_A loop /* a loop as sole argument to a function call */ |
75 | # define EV_A_ EV_A, |
180 | # define EV_A_ EV_A, /* a loop as first of multiple arguments */ |
76 | # define EV_DEFAULT_A ev_default_loop (0) |
181 | # define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */ |
77 | # define EV_DEFAULT_A_ EV_DEFAULT_A, |
182 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ |
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183 | # define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ |
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184 | # define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ |
78 | #else |
185 | #else |
79 | # define EV_P void |
186 | # define EV_P void |
80 | # define EV_P_ |
187 | # define EV_P_ |
81 | # define EV_A |
188 | # define EV_A |
82 | # define EV_A_ |
189 | # define EV_A_ |
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190 | # define EV_DEFAULT |
83 | # define EV_DEFAULT_A |
191 | # define EV_DEFAULT_ |
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192 | # define EV_DEFAULT_UC |
84 | # define EV_DEFAULT_A_ |
193 | # define EV_DEFAULT_UC_ |
85 | |
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86 | # undef EV_EMBED_ENABLE |
194 | # undef EV_EMBED_ENABLE |
87 | #endif |
195 | #endif |
88 | |
196 | |
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197 | /* EV_INLINE is used for functions in header files */ |
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198 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
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199 | # define EV_INLINE static inline |
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200 | #else |
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201 | # define EV_INLINE static |
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202 | #endif |
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203 | |
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204 | #ifdef EV_API_STATIC |
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205 | # define EV_API_DECL static |
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206 | #else |
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207 | # define EV_API_DECL extern |
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208 | #endif |
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209 | |
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210 | /* EV_PROTOTYPES can be used to switch of prototype declarations */ |
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211 | #ifndef EV_PROTOTYPES |
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212 | # define EV_PROTOTYPES 1 |
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213 | #endif |
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214 | |
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215 | /*****************************************************************************/ |
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216 | |
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217 | #define EV_VERSION_MAJOR 4 |
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218 | #define EV_VERSION_MINOR 33 |
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219 | |
89 | /* eventmask, revents, events... */ |
220 | /* eventmask, revents, events... */ |
90 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
221 | enum { |
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222 | EV_UNDEF = (int)0xFFFFFFFF, /* guaranteed to be invalid */ |
91 | #define EV_NONE 0x00L /* no events */ |
223 | EV_NONE = 0x00, /* no events */ |
92 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
224 | EV_READ = 0x01, /* ev_io detected read will not block */ |
93 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
225 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
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226 | EV__IOFDSET = 0x80, /* internal use only */ |
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227 | EV_IO = EV_READ, /* alias for type-detection */ |
94 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
228 | EV_TIMER = 0x00000100, /* timer timed out */ |
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229 | #if EV_COMPAT3 |
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230 | EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ |
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231 | #endif |
95 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
232 | EV_PERIODIC = 0x00000200, /* periodic timer timed out */ |
96 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
233 | EV_SIGNAL = 0x00000400, /* signal was received */ |
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234 | EV_CHILD = 0x00000800, /* child/pid had status change */ |
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235 | EV_STAT = 0x00001000, /* stat data changed */ |
97 | #define EV_IDLE 0x00000800L /* event loop is idling */ |
236 | EV_IDLE = 0x00002000, /* event loop is idling */ |
98 | #define EV_PREPARE 0x00001000L /* event loop about to poll */ |
237 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
99 | #define EV_CHECK 0x00002000L /* event loop finished poll */ |
238 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
100 | #define EV_CHILD 0x00004000L /* child/pid had status change */ |
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101 | #define EV_EMBED 0x00008000L /* embedded event loop needs sweep */ |
239 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
102 | #define EV_STAT 0x00010000L /* stat data changed */ |
240 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
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241 | EV_CLEANUP = 0x00040000, /* event loop resumed in child */ |
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242 | EV_ASYNC = 0x00080000, /* async intra-loop signal */ |
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243 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
103 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
244 | EV_ERROR = (int)0x80000000 /* sent when an error occurs */ |
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245 | }; |
104 | |
246 | |
105 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
247 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
106 | #ifndef EV_COMMON |
248 | #ifndef EV_COMMON |
107 | # define EV_COMMON void *data; |
249 | # define EV_COMMON void *data; |
108 | #endif |
250 | #endif |
109 | #ifndef EV_PROTOTYPES |
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110 | # define EV_PROTOTYPES 1 |
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111 | #endif |
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112 | |
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113 | #define EV_VERSION_MAJOR 1 |
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114 | #define EV_VERSION_MINOR 1 |
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115 | |
251 | |
116 | #ifndef EV_CB_DECLARE |
252 | #ifndef EV_CB_DECLARE |
117 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
253 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
118 | #endif |
254 | #endif |
119 | #ifndef EV_CB_INVOKE |
255 | #ifndef EV_CB_INVOKE |
120 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
256 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
121 | #endif |
257 | #endif |
122 | |
258 | |
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259 | /* not official, do not use */ |
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260 | #define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents) |
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261 | |
123 | /* |
262 | /* |
124 | * struct member types: |
263 | * struct member types: |
125 | * private: you can look at them, but not change them, and they might not mean anything to you. |
264 | * private: you may look at them, but not change them, |
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265 | * and they might not mean anything to you. |
126 | * ro: can be read anytime, but only changed when the watcher isn't active |
266 | * ro: can be read anytime, but only changed when the watcher isn't active. |
127 | * rw: can be read and modified anytime, even when the watcher is active |
267 | * rw: can be read and modified anytime, even when the watcher is active. |
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268 | * |
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269 | * some internal details that might be helpful for debugging: |
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270 | * |
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271 | * active is either 0, which means the watcher is not active, |
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272 | * or the array index of the watcher (periodics, timers) |
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273 | * or the array index + 1 (most other watchers) |
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274 | * or simply 1 for watchers that aren't in some array. |
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275 | * pending is either 0, in which case the watcher isn't, |
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276 | * or the array index + 1 in the pendings array. |
128 | */ |
277 | */ |
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278 | |
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279 | #if EV_MINPRI == EV_MAXPRI |
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280 | # define EV_DECL_PRIORITY |
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281 | #elif !defined (EV_DECL_PRIORITY) |
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282 | # define EV_DECL_PRIORITY int priority; |
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283 | #endif |
129 | |
284 | |
130 | /* shared by all watchers */ |
285 | /* shared by all watchers */ |
131 | #define EV_WATCHER(type) \ |
286 | #define EV_WATCHER(type) \ |
132 | int active; /* private */ \ |
287 | int active; /* private */ \ |
133 | int pending; /* private */ \ |
288 | int pending; /* private */ \ |
134 | int priority; /* private */ \ |
289 | EV_DECL_PRIORITY /* private */ \ |
135 | EV_COMMON /* rw */ \ |
290 | EV_COMMON /* rw */ \ |
136 | EV_CB_DECLARE (type) /* private */ |
291 | EV_CB_DECLARE (type) /* private */ |
137 | |
292 | |
138 | #define EV_WATCHER_LIST(type) \ |
293 | #define EV_WATCHER_LIST(type) \ |
139 | EV_WATCHER (type) \ |
294 | EV_WATCHER (type) \ |
… | |
… | |
159 | typedef struct ev_watcher_time |
314 | typedef struct ev_watcher_time |
160 | { |
315 | { |
161 | EV_WATCHER_TIME (ev_watcher_time) |
316 | EV_WATCHER_TIME (ev_watcher_time) |
162 | } ev_watcher_time; |
317 | } ev_watcher_time; |
163 | |
318 | |
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319 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
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320 | /* revent EV_READ, EV_WRITE */ |
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321 | typedef struct ev_io |
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322 | { |
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323 | EV_WATCHER_LIST (ev_io) |
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324 | |
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325 | int fd; /* ro */ |
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326 | int events; /* ro */ |
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327 | } ev_io; |
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328 | |
164 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
329 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
165 | /* revent EV_TIMEOUT */ |
330 | /* revent EV_TIMEOUT */ |
166 | typedef struct ev_timer |
331 | typedef struct ev_timer |
167 | { |
332 | { |
168 | EV_WATCHER_TIME (ev_timer) |
333 | EV_WATCHER_TIME (ev_timer) |
… | |
… | |
174 | /* revent EV_PERIODIC */ |
339 | /* revent EV_PERIODIC */ |
175 | typedef struct ev_periodic |
340 | typedef struct ev_periodic |
176 | { |
341 | { |
177 | EV_WATCHER_TIME (ev_periodic) |
342 | EV_WATCHER_TIME (ev_periodic) |
178 | |
343 | |
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344 | ev_tstamp offset; /* rw */ |
179 | ev_tstamp interval; /* rw */ |
345 | ev_tstamp interval; /* rw */ |
180 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
346 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) EV_NOEXCEPT; /* rw */ |
181 | } ev_periodic; |
347 | } ev_periodic; |
182 | |
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183 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
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184 | /* revent EV_READ, EV_WRITE */ |
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185 | typedef struct ev_io |
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186 | { |
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187 | EV_WATCHER_LIST (ev_io) |
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188 | |
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189 | int fd; /* ro */ |
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190 | int events; /* ro */ |
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191 | } ev_io; |
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192 | |
348 | |
193 | /* invoked when the given signal has been received */ |
349 | /* invoked when the given signal has been received */ |
194 | /* revent EV_SIGNAL */ |
350 | /* revent EV_SIGNAL */ |
195 | typedef struct ev_signal |
351 | typedef struct ev_signal |
196 | { |
352 | { |
197 | EV_WATCHER_LIST (ev_signal) |
353 | EV_WATCHER_LIST (ev_signal) |
198 | |
354 | |
199 | int signum; /* ro */ |
355 | int signum; /* ro */ |
200 | } ev_signal; |
356 | } ev_signal; |
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357 | |
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358 | /* invoked when sigchld is received and waitpid indicates the given pid */ |
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359 | /* revent EV_CHILD */ |
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360 | /* does not support priorities */ |
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361 | typedef struct ev_child |
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362 | { |
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363 | EV_WATCHER_LIST (ev_child) |
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364 | |
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365 | int flags; /* private */ |
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366 | int pid; /* ro */ |
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367 | int rpid; /* rw, holds the received pid */ |
|
|
368 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
|
|
369 | } ev_child; |
|
|
370 | |
|
|
371 | #if EV_STAT_ENABLE |
|
|
372 | /* st_nlink = 0 means missing file or other error */ |
|
|
373 | # ifdef _WIN32 |
|
|
374 | typedef struct _stati64 ev_statdata; |
|
|
375 | # else |
|
|
376 | typedef struct stat ev_statdata; |
|
|
377 | # endif |
|
|
378 | |
|
|
379 | /* invoked each time the stat data changes for a given path */ |
|
|
380 | /* revent EV_STAT */ |
|
|
381 | typedef struct ev_stat |
|
|
382 | { |
|
|
383 | EV_WATCHER_LIST (ev_stat) |
|
|
384 | |
|
|
385 | ev_timer timer; /* private */ |
|
|
386 | ev_tstamp interval; /* ro */ |
|
|
387 | const char *path; /* ro */ |
|
|
388 | ev_statdata prev; /* ro */ |
|
|
389 | ev_statdata attr; /* ro */ |
|
|
390 | |
|
|
391 | int wd; /* wd for inotify, fd for kqueue */ |
|
|
392 | } ev_stat; |
|
|
393 | #endif |
201 | |
394 | |
202 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
395 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
203 | /* revent EV_IDLE */ |
396 | /* revent EV_IDLE */ |
204 | typedef struct ev_idle |
397 | typedef struct ev_idle |
205 | { |
398 | { |
… | |
… | |
219 | typedef struct ev_check |
412 | typedef struct ev_check |
220 | { |
413 | { |
221 | EV_WATCHER (ev_check) |
414 | EV_WATCHER (ev_check) |
222 | } ev_check; |
415 | } ev_check; |
223 | |
416 | |
224 | /* invoked when sigchld is received and waitpid indicates the given pid */ |
417 | /* the callback gets invoked before check in the child process when a fork was detected */ |
|
|
418 | /* revent EV_FORK */ |
|
|
419 | typedef struct ev_fork |
|
|
420 | { |
|
|
421 | EV_WATCHER (ev_fork) |
|
|
422 | } ev_fork; |
|
|
423 | |
|
|
424 | /* is invoked just before the loop gets destroyed */ |
225 | /* revent EV_CHILD */ |
425 | /* revent EV_CLEANUP */ |
226 | /* does not support priorities */ |
|
|
227 | typedef struct ev_child |
426 | typedef struct ev_cleanup |
228 | { |
427 | { |
229 | EV_WATCHER_LIST (ev_child) |
428 | EV_WATCHER (ev_cleanup) |
230 | |
429 | } ev_cleanup; |
231 | int pid; /* ro */ |
|
|
232 | int rpid; /* rw, holds the received pid */ |
|
|
233 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
|
|
234 | } ev_child; |
|
|
235 | |
430 | |
236 | #if EV_EMBED_ENABLE |
431 | #if EV_EMBED_ENABLE |
237 | /* used to embed an event loop inside another */ |
432 | /* used to embed an event loop inside another */ |
238 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
433 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
239 | typedef struct ev_embed |
434 | typedef struct ev_embed |
240 | { |
435 | { |
241 | EV_WATCHER (ev_embed) |
436 | EV_WATCHER (ev_embed) |
242 | |
437 | |
243 | ev_io io; /* private */ |
|
|
244 | struct ev_loop *loop; /* ro */ |
438 | struct ev_loop *other; /* ro */ |
|
|
439 | #undef EV_IO_ENABLE |
|
|
440 | #define EV_IO_ENABLE 1 |
|
|
441 | ev_io io; /* private */ |
|
|
442 | #undef EV_PREPARE_ENABLE |
|
|
443 | #define EV_PREPARE_ENABLE 1 |
|
|
444 | ev_prepare prepare; /* private */ |
|
|
445 | ev_check check; /* unused */ |
|
|
446 | ev_timer timer; /* unused */ |
|
|
447 | ev_periodic periodic; /* unused */ |
|
|
448 | ev_idle idle; /* unused */ |
|
|
449 | ev_fork fork; /* private */ |
|
|
450 | ev_cleanup cleanup; /* unused */ |
245 | } ev_embed; |
451 | } ev_embed; |
246 | #endif |
452 | #endif |
247 | |
453 | |
248 | #if EV_STAT_ENABLE |
454 | #if EV_ASYNC_ENABLE |
249 | /* st_nlink = 0 means missing file or other error */ |
455 | /* invoked when somebody calls ev_async_send on the watcher */ |
250 | typedef struct stat ev_statdata; |
|
|
251 | |
|
|
252 | /* invoked each time the stat data changes for a given path */ |
|
|
253 | /* revent EV_STAT */ |
456 | /* revent EV_ASYNC */ |
254 | typedef struct ev_stat |
457 | typedef struct ev_async |
255 | { |
458 | { |
256 | EV_WATCHER (ev_stat) |
459 | EV_WATCHER (ev_async) |
257 | |
460 | |
258 | ev_timer timer; /* private */ |
461 | EV_ATOMIC_T sent; /* private */ |
259 | ev_tstamp interval; /* rw */ |
462 | } ev_async; |
260 | const char *path; /* ro */ |
463 | |
261 | ev_statdata prev; /* ro */ |
464 | # define ev_async_pending(w) (+(w)->sent) |
262 | ev_statdata attr; /* ro */ |
|
|
263 | } ev_stat; |
|
|
264 | #endif |
465 | #endif |
265 | |
466 | |
266 | /* the presence of this union forces similar struct layout */ |
467 | /* the presence of this union forces similar struct layout */ |
267 | union ev_any_watcher |
468 | union ev_any_watcher |
268 | { |
469 | { |
… | |
… | |
270 | struct ev_watcher_list wl; |
471 | struct ev_watcher_list wl; |
271 | |
472 | |
272 | struct ev_io io; |
473 | struct ev_io io; |
273 | struct ev_timer timer; |
474 | struct ev_timer timer; |
274 | struct ev_periodic periodic; |
475 | struct ev_periodic periodic; |
|
|
476 | struct ev_signal signal; |
|
|
477 | struct ev_child child; |
|
|
478 | #if EV_STAT_ENABLE |
|
|
479 | struct ev_stat stat; |
|
|
480 | #endif |
|
|
481 | #if EV_IDLE_ENABLE |
275 | struct ev_idle idle; |
482 | struct ev_idle idle; |
|
|
483 | #endif |
276 | struct ev_prepare prepare; |
484 | struct ev_prepare prepare; |
277 | struct ev_check check; |
485 | struct ev_check check; |
278 | struct ev_signal signal; |
486 | #if EV_FORK_ENABLE |
279 | struct ev_child child; |
487 | struct ev_fork fork; |
|
|
488 | #endif |
|
|
489 | #if EV_CLEANUP_ENABLE |
|
|
490 | struct ev_cleanup cleanup; |
|
|
491 | #endif |
280 | #if EV_EMBED_ENABLE |
492 | #if EV_EMBED_ENABLE |
281 | struct ev_embed embed; |
493 | struct ev_embed embed; |
282 | #endif |
494 | #endif |
283 | #if EV_STAT_ENABLE |
495 | #if EV_ASYNC_ENABLE |
284 | struct ev_stat stat; |
496 | struct ev_async async; |
285 | #endif |
497 | #endif |
286 | }; |
498 | }; |
287 | |
499 | |
288 | /* bits for ev_default_loop and ev_loop_new */ |
500 | /* flag bits for ev_default_loop and ev_loop_new */ |
|
|
501 | enum { |
289 | /* the default */ |
502 | /* the default */ |
290 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
503 | EVFLAG_AUTO = 0x00000000U, /* not quite a mask */ |
291 | /* flag bits */ |
504 | /* flag bits */ |
292 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
505 | EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */ |
|
|
506 | EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */ |
|
|
507 | /* debugging/feature disable */ |
|
|
508 | EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ |
|
|
509 | #if EV_COMPAT3 |
|
|
510 | EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ |
|
|
511 | #endif |
|
|
512 | EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */ |
|
|
513 | EVFLAG_NOSIGMASK = 0x00400000U, /* avoid modifying the signal mask */ |
|
|
514 | EVFLAG_NOTIMERFD = 0x00800000U /* avoid creating a timerfd */ |
|
|
515 | }; |
|
|
516 | |
293 | /* method bits to be ored together */ |
517 | /* method bits to be ored together */ |
|
|
518 | enum { |
294 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
519 | EVBACKEND_SELECT = 0x00000001U, /* available just about anywhere */ |
295 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
520 | EVBACKEND_POLL = 0x00000002U, /* !win, !aix, broken on osx */ |
296 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
521 | EVBACKEND_EPOLL = 0x00000004U, /* linux */ |
297 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
522 | EVBACKEND_KQUEUE = 0x00000008U, /* bsd, broken on osx */ |
298 | #define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ |
523 | EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ |
299 | #define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ |
524 | EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ |
|
|
525 | EVBACKEND_LINUXAIO = 0x00000040U, /* linux AIO, 4.19+ */ |
|
|
526 | EVBACKEND_IOURING = 0x00000080U, /* linux io_uring, 5.1+ */ |
|
|
527 | EVBACKEND_ALL = 0x000000FFU, /* all known backends */ |
|
|
528 | EVBACKEND_MASK = 0x0000FFFFU /* all future backends */ |
|
|
529 | }; |
300 | |
530 | |
301 | #if EV_PROTOTYPES |
531 | #if EV_PROTOTYPES |
302 | int ev_version_major (void); |
532 | EV_API_DECL int ev_version_major (void) EV_NOEXCEPT; |
303 | int ev_version_minor (void); |
533 | EV_API_DECL int ev_version_minor (void) EV_NOEXCEPT; |
304 | |
534 | |
305 | unsigned int ev_supported_backends (void); |
535 | EV_API_DECL unsigned int ev_supported_backends (void) EV_NOEXCEPT; |
306 | unsigned int ev_recommended_backends (void); |
536 | EV_API_DECL unsigned int ev_recommended_backends (void) EV_NOEXCEPT; |
307 | unsigned int ev_embeddable_backends (void); |
537 | EV_API_DECL unsigned int ev_embeddable_backends (void) EV_NOEXCEPT; |
308 | |
538 | |
309 | ev_tstamp ev_time (void); |
539 | EV_API_DECL ev_tstamp ev_time (void) EV_NOEXCEPT; |
|
|
540 | EV_API_DECL void ev_sleep (ev_tstamp delay) EV_NOEXCEPT; /* sleep for a while */ |
310 | |
541 | |
311 | /* Sets the allocation function to use, works like realloc. |
542 | /* Sets the allocation function to use, works like realloc. |
312 | * It is used to allocate and free memory. |
543 | * It is used to allocate and free memory. |
313 | * If it returns zero when memory needs to be allocated, the library might abort |
544 | * If it returns zero when memory needs to be allocated, the library might abort |
314 | * or take some potentially destructive action. |
545 | * or take some potentially destructive action. |
315 | * The default is your system realloc function. |
546 | * The default is your system realloc function. |
316 | */ |
547 | */ |
317 | void ev_set_allocator (void *(*cb)(void *ptr, long size)); |
548 | EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT; |
318 | |
549 | |
319 | /* set the callback function to call on a |
550 | /* set the callback function to call on a |
320 | * retryable syscall error |
551 | * retryable syscall error |
321 | * (such as failed select, poll, epoll_wait) |
552 | * (such as failed select, poll, epoll_wait) |
322 | */ |
553 | */ |
323 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
554 | EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT; |
324 | |
555 | |
325 | # if EV_MULTIPLICITY |
556 | #if EV_MULTIPLICITY |
|
|
557 | |
326 | /* the default loop is the only one that handles signals and child watchers */ |
558 | /* the default loop is the only one that handles signals and child watchers */ |
327 | /* you can call this as often as you like */ |
559 | /* you can call this as often as you like */ |
328 | static struct ev_loop * |
560 | EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT; |
329 | ev_default_loop (unsigned int flags) |
561 | |
|
|
562 | #ifdef EV_API_STATIC |
|
|
563 | EV_API_DECL struct ev_loop *ev_default_loop_ptr; |
|
|
564 | #endif |
|
|
565 | |
|
|
566 | EV_INLINE struct ev_loop * |
|
|
567 | ev_default_loop_uc_ (void) EV_NOEXCEPT |
330 | { |
568 | { |
331 | extern struct ev_loop *ev_default_loop_ptr; |
569 | extern struct ev_loop *ev_default_loop_ptr; |
332 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
|
|
333 | |
|
|
334 | if (!ev_default_loop_ptr) |
|
|
335 | ev_default_loop_init (flags); |
|
|
336 | |
570 | |
337 | return ev_default_loop_ptr; |
571 | return ev_default_loop_ptr; |
338 | } |
572 | } |
339 | |
573 | |
|
|
574 | EV_INLINE int |
|
|
575 | ev_is_default_loop (EV_P) EV_NOEXCEPT |
|
|
576 | { |
|
|
577 | return EV_A == EV_DEFAULT_UC; |
|
|
578 | } |
|
|
579 | |
340 | /* create and destroy alternative loops that don't handle signals */ |
580 | /* create and destroy alternative loops that don't handle signals */ |
341 | struct ev_loop *ev_loop_new (unsigned int flags); |
581 | EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT; |
342 | void ev_loop_destroy (EV_P); |
|
|
343 | void ev_loop_fork (EV_P); |
|
|
344 | |
582 | |
345 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
583 | EV_API_DECL ev_tstamp ev_now (EV_P) EV_NOEXCEPT; /* time w.r.t. timers and the eventloop, updated after each poll */ |
346 | |
584 | |
347 | # else |
585 | #else |
348 | |
586 | |
349 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
587 | EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT; /* returns true when successful */ |
350 | |
588 | |
351 | static ev_tstamp |
589 | EV_API_DECL ev_tstamp ev_rt_now; |
352 | ev_now (void) |
|
|
353 | { |
|
|
354 | extern ev_tstamp ev_rt_now; |
|
|
355 | |
590 | |
|
|
591 | EV_INLINE ev_tstamp |
|
|
592 | ev_now (void) EV_NOEXCEPT |
|
|
593 | { |
356 | return ev_rt_now; |
594 | return ev_rt_now; |
357 | } |
595 | } |
358 | # endif |
|
|
359 | |
596 | |
360 | void ev_default_destroy (void); /* destroy the default loop */ |
597 | /* looks weird, but ev_is_default_loop (EV_A) still works if this exists */ |
|
|
598 | EV_INLINE int |
|
|
599 | ev_is_default_loop (void) EV_NOEXCEPT |
|
|
600 | { |
|
|
601 | return 1; |
|
|
602 | } |
|
|
603 | |
|
|
604 | #endif /* multiplicity */ |
|
|
605 | |
|
|
606 | /* destroy event loops, also works for the default loop */ |
|
|
607 | EV_API_DECL void ev_loop_destroy (EV_P); |
|
|
608 | |
361 | /* this needs to be called after fork, to duplicate the default loop */ |
609 | /* this needs to be called after fork, to duplicate the loop */ |
362 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
610 | /* when you want to re-use it in the child */ |
363 | /* you can call it in either the parent or the child */ |
611 | /* you can call it in either the parent or the child */ |
364 | /* you can actually call it at any time, anywhere :) */ |
612 | /* you can actually call it at any time, anywhere :) */ |
365 | void ev_default_fork (void); |
613 | EV_API_DECL void ev_loop_fork (EV_P) EV_NOEXCEPT; |
366 | |
614 | |
367 | unsigned int ev_backend (EV_P); |
615 | EV_API_DECL unsigned int ev_backend (EV_P) EV_NOEXCEPT; /* backend in use by loop */ |
368 | #endif |
|
|
369 | |
616 | |
370 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
617 | EV_API_DECL void ev_now_update (EV_P) EV_NOEXCEPT; /* update event loop time */ |
371 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
618 | |
372 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
619 | #if EV_WALK_ENABLE |
373 | #define EVUNLOOP_ONE 1 /* unloop once */ |
620 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
|
|
621 | /* callback on every such watcher. The callback might stop the watcher, */ |
|
|
622 | /* but do nothing else with the loop */ |
|
|
623 | EV_API_DECL void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT; |
|
|
624 | #endif |
|
|
625 | |
|
|
626 | #endif /* prototypes */ |
|
|
627 | |
|
|
628 | /* ev_run flags values */ |
|
|
629 | enum { |
|
|
630 | EVRUN_NOWAIT = 1, /* do not block/wait */ |
|
|
631 | EVRUN_ONCE = 2 /* block *once* only */ |
|
|
632 | }; |
|
|
633 | |
|
|
634 | /* ev_break how values */ |
|
|
635 | enum { |
|
|
636 | EVBREAK_CANCEL = 0, /* undo unloop */ |
|
|
637 | EVBREAK_ONE = 1, /* unloop once */ |
374 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
638 | EVBREAK_ALL = 2 /* unloop all loops */ |
|
|
639 | }; |
375 | |
640 | |
376 | #if EV_PROTOTYPES |
641 | #if EV_PROTOTYPES |
377 | void ev_loop (EV_P_ int flags); |
642 | EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0)); |
378 | 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 */ |
643 | EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)) EV_NOEXCEPT; /* break out of the loop */ |
379 | |
644 | |
380 | /* |
645 | /* |
381 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
646 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
382 | * keeps one reference. if you have a long-runing watcher you never unregister that |
647 | * keeps one reference. if you have a long-running watcher you never unregister that |
383 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
648 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
384 | */ |
649 | */ |
385 | void ev_ref (EV_P); |
650 | EV_API_DECL void ev_ref (EV_P) EV_NOEXCEPT; |
386 | void ev_unref (EV_P); |
651 | EV_API_DECL void ev_unref (EV_P) EV_NOEXCEPT; |
387 | |
652 | |
|
|
653 | /* |
388 | /* convinience function, wait for a single event, without registering an event watcher */ |
654 | * convenience function, wait for a single event, without registering an event watcher |
389 | /* if timeout is < 0, do wait indefinitely */ |
655 | * if timeout is < 0, do wait indefinitely |
|
|
656 | */ |
390 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
657 | EV_API_DECL void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT; |
|
|
658 | |
|
|
659 | EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
|
|
660 | |
|
|
661 | # if EV_FEATURE_API |
|
|
662 | EV_API_DECL unsigned int ev_iteration (EV_P) EV_NOEXCEPT; /* number of loop iterations */ |
|
|
663 | EV_API_DECL unsigned int ev_depth (EV_P) EV_NOEXCEPT; /* #ev_loop enters - #ev_loop leaves */ |
|
|
664 | EV_API_DECL void ev_verify (EV_P) EV_NOEXCEPT; /* abort if loop data corrupted */ |
|
|
665 | |
|
|
666 | EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */ |
|
|
667 | EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */ |
|
|
668 | |
|
|
669 | /* advanced stuff for threading etc. support, see docs */ |
|
|
670 | EV_API_DECL void ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT; |
|
|
671 | EV_API_DECL void *ev_userdata (EV_P) EV_NOEXCEPT; |
|
|
672 | typedef void (*ev_loop_callback)(EV_P); |
|
|
673 | EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT; |
|
|
674 | /* C++ doesn't allow the use of the ev_loop_callback typedef here, so we need to spell it out */ |
|
|
675 | EV_API_DECL void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT; |
|
|
676 | |
|
|
677 | EV_API_DECL unsigned int ev_pending_count (EV_P) EV_NOEXCEPT; /* number of pending events, if any */ |
|
|
678 | |
|
|
679 | /* |
|
|
680 | * stop/start the timer handling. |
|
|
681 | */ |
|
|
682 | EV_API_DECL void ev_suspend (EV_P) EV_NOEXCEPT; |
|
|
683 | EV_API_DECL void ev_resume (EV_P) EV_NOEXCEPT; |
|
|
684 | #endif |
|
|
685 | |
391 | #endif |
686 | #endif |
392 | |
687 | |
393 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
688 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
394 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
689 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
395 | #define ev_init(ev,cb_) do { \ |
690 | #define ev_init(ev,cb_) do { \ |
396 | ((ev_watcher *)(void *)(ev))->active = \ |
691 | ((ev_watcher *)(void *)(ev))->active = \ |
397 | ((ev_watcher *)(void *)(ev))->pending = \ |
692 | ((ev_watcher *)(void *)(ev))->pending = 0; \ |
398 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
693 | ev_set_priority ((ev), 0); \ |
399 | ev_set_cb ((ev), cb_); \ |
694 | ev_set_cb ((ev), cb_); \ |
400 | } while (0) |
695 | } while (0) |
401 | |
696 | |
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697 | #define ev_io_modify(ev,events_) do { (ev)->events = (ev)->events & EV__IOFDSET | (events_); } while (0) |
402 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
698 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
403 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
699 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
404 | #define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
700 | #define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0) |
405 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
701 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
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702 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
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703 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
406 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
704 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
407 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
705 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
408 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
706 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
409 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
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|
410 | #define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) |
707 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
411 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0) |
708 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
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|
709 | #define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */ |
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|
710 | #define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
412 | |
711 | |
413 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
712 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
414 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
713 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
415 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
714 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
416 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
715 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
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716 | #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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|
717 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) |
417 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
718 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
418 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
719 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
419 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
720 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
420 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
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|
421 | #define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) |
721 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
422 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0) |
722 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
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|
723 | #define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0) |
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724 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
423 | |
725 | |
424 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
726 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
425 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
727 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
426 | |
728 | |
427 | #define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */ |
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428 | #define ev_cb(ev) (ev)->cb /* rw */ |
729 | #define ev_cb_(ev) (ev)->cb /* rw */ |
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730 | #define ev_cb(ev) (memmove (&ev_cb_ (ev), &((ev_watcher *)(ev))->cb, sizeof (ev_cb_ (ev))), (ev)->cb) |
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731 | |
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732 | #if EV_MINPRI == EV_MAXPRI |
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733 | # define ev_priority(ev) ((ev), EV_MINPRI) |
429 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
734 | # define ev_set_priority(ev,pri) ((ev), (pri)) |
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735 | #else |
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736 | # define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority)) |
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737 | # define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) |
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738 | #endif |
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739 | |
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740 | #define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at) |
430 | |
741 | |
431 | #ifndef ev_set_cb |
742 | #ifndef ev_set_cb |
432 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
743 | /* memmove is used here to avoid strict aliasing violations, and hopefully is optimized out by any reasonable compiler */ |
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|
744 | # define ev_set_cb(ev,cb_) (ev_cb_ (ev) = (cb_), memmove (&((ev_watcher *)(ev))->cb, &ev_cb_ (ev), sizeof (ev_cb_ (ev)))) |
433 | #endif |
745 | #endif |
434 | |
746 | |
435 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
747 | /* starting (enabling, adding) a watcher does nothing if it is already running */ |
436 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
748 | /* stopping (disabling, deleting) a watcher does nothing unless it's already running */ |
437 | #if EV_PROTOTYPES |
749 | #if EV_PROTOTYPES |
438 | |
750 | |
439 | /* feeds an event into a watcher as if the event actually occured */ |
751 | /* feeds an event into a watcher as if the event actually occurred */ |
440 | /* accepts any ev_watcher type */ |
752 | /* accepts any ev_watcher type */ |
441 | void ev_feed_event (EV_P_ void *w, int revents); |
753 | EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT; |
442 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
754 | EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT; |
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755 | #if EV_SIGNAL_ENABLE |
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|
756 | EV_API_DECL void ev_feed_signal (int signum) EV_NOEXCEPT; |
443 | void ev_feed_signal_event (EV_P_ int signum); |
757 | EV_API_DECL void ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT; |
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758 | #endif |
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759 | EV_API_DECL void ev_invoke (EV_P_ void *w, int revents); |
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|
760 | EV_API_DECL int ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT; |
444 | |
761 | |
445 | void ev_io_start (EV_P_ ev_io *w); |
762 | EV_API_DECL void ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT; |
446 | void ev_io_stop (EV_P_ ev_io *w); |
763 | EV_API_DECL void ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT; |
447 | |
764 | |
448 | void ev_timer_start (EV_P_ ev_timer *w); |
765 | EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT; |
449 | void ev_timer_stop (EV_P_ ev_timer *w); |
766 | EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT; |
450 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
767 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
451 | void ev_timer_again (EV_P_ ev_timer *w); |
768 | EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT; |
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|
769 | /* return remaining time */ |
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|
770 | EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT; |
452 | |
771 | |
453 | #if EV_PERIODIC_ENABLE |
772 | #if EV_PERIODIC_ENABLE |
454 | void ev_periodic_start (EV_P_ ev_periodic *w); |
773 | EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT; |
455 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
774 | EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT; |
456 | void ev_periodic_again (EV_P_ ev_periodic *w); |
775 | EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT; |
457 | #endif |
776 | #endif |
458 | |
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|
459 | void ev_idle_start (EV_P_ ev_idle *w); |
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460 | void ev_idle_stop (EV_P_ ev_idle *w); |
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|
461 | |
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462 | void ev_prepare_start (EV_P_ ev_prepare *w); |
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463 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
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|
464 | |
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465 | void ev_check_start (EV_P_ ev_check *w); |
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|
466 | void ev_check_stop (EV_P_ ev_check *w); |
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467 | |
777 | |
468 | /* only supported in the default loop */ |
778 | /* only supported in the default loop */ |
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|
779 | #if EV_SIGNAL_ENABLE |
469 | void ev_signal_start (EV_P_ ev_signal *w); |
780 | EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT; |
470 | void ev_signal_stop (EV_P_ ev_signal *w); |
781 | EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT; |
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|
782 | #endif |
471 | |
783 | |
472 | /* only supported in the default loop */ |
784 | /* only supported in the default loop */ |
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|
785 | # if EV_CHILD_ENABLE |
473 | void ev_child_start (EV_P_ ev_child *w); |
786 | EV_API_DECL void ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT; |
474 | void ev_child_stop (EV_P_ ev_child *w); |
787 | EV_API_DECL void ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT; |
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|
788 | # endif |
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|
789 | |
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|
790 | # if EV_STAT_ENABLE |
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|
791 | EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT; |
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|
792 | EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT; |
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|
793 | EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT; |
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|
794 | # endif |
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|
795 | |
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|
796 | # if EV_IDLE_ENABLE |
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|
797 | EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT; |
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|
798 | EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT; |
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|
799 | # endif |
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|
800 | |
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|
801 | #if EV_PREPARE_ENABLE |
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|
802 | EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT; |
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|
803 | EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT; |
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|
804 | #endif |
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|
805 | |
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|
806 | #if EV_CHECK_ENABLE |
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|
807 | EV_API_DECL void ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT; |
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|
808 | EV_API_DECL void ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT; |
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|
809 | #endif |
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|
810 | |
|
|
811 | # if EV_FORK_ENABLE |
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|
812 | EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT; |
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|
813 | EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT; |
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|
814 | # endif |
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|
815 | |
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|
816 | # if EV_CLEANUP_ENABLE |
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|
817 | EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT; |
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|
818 | EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT; |
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|
819 | # endif |
475 | |
820 | |
476 | # if EV_EMBED_ENABLE |
821 | # if EV_EMBED_ENABLE |
477 | /* only supported when loop to be embedded is in fact embeddable */ |
822 | /* only supported when loop to be embedded is in fact embeddable */ |
478 | void ev_embed_start (EV_P_ ev_embed *w); |
823 | EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT; |
479 | void ev_embed_stop (EV_P_ ev_embed *w); |
824 | EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT; |
480 | void ev_embed_sweep (EV_P_ ev_embed *w); |
825 | EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT; |
481 | # endif |
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482 | |
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|
483 | # if EV_STAT_ENABLE |
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|
484 | void ev_stat_start (EV_P_ ev_stat *w); |
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|
485 | void ev_stat_stop (EV_P_ ev_stat *w); |
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|
486 | void ev_stat_stat (EV_P_ ev_stat *w); |
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|
487 | # endif |
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|
488 | |
|
|
489 | #endif |
826 | # endif |
490 | |
827 | |
491 | #ifdef __cplusplus |
828 | # if EV_ASYNC_ENABLE |
492 | } |
829 | EV_API_DECL void ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT; |
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|
830 | EV_API_DECL void ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT; |
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|
831 | EV_API_DECL void ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT; |
493 | #endif |
832 | # endif |
494 | |
833 | |
|
|
834 | #if EV_COMPAT3 |
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|
835 | #define EVLOOP_NONBLOCK EVRUN_NOWAIT |
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|
836 | #define EVLOOP_ONESHOT EVRUN_ONCE |
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|
837 | #define EVUNLOOP_CANCEL EVBREAK_CANCEL |
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|
838 | #define EVUNLOOP_ONE EVBREAK_ONE |
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|
839 | #define EVUNLOOP_ALL EVBREAK_ALL |
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|
840 | #if EV_PROTOTYPES |
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|
841 | EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } |
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|
842 | EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } |
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|
843 | EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); } |
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|
844 | EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); } |
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|
845 | #if EV_FEATURE_API |
|
|
846 | EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); } |
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|
847 | EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); } |
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|
848 | EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } |
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|
849 | #endif |
495 | #endif |
850 | #endif |
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|
851 | #else |
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|
852 | typedef struct ev_loop ev_loop; |
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|
853 | #endif |
496 | |
854 | |
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|
855 | #endif |
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856 | |
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|
857 | EV_CPP(}) |
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|
858 | |
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|
859 | #endif |
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860 | |