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) 2007-2019 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 */ |
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55 | |
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56 | EV_CPP(extern "C" {) |
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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 | |
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81 | /* these priorities are inclusive, higher priorities will be invoked earlier */ |
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82 | #ifndef EV_MINPRI |
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83 | # define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0) |
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84 | #endif |
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85 | #ifndef EV_MAXPRI |
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86 | # define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0) |
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87 | #endif |
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88 | |
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89 | #ifndef EV_MULTIPLICITY |
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90 | # define EV_MULTIPLICITY EV_FEATURE_CONFIG |
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91 | #endif |
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92 | |
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93 | #ifndef EV_PERIODIC_ENABLE |
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94 | # define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS |
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95 | #endif |
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96 | |
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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 |
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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 |
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135 | #endif |
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136 | |
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137 | #ifndef EV_EMBED_ENABLE |
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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 */ |
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143 | #endif |
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144 | |
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145 | /*****************************************************************************/ |
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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 | /*****************************************************************************/ |
36 | |
153 | |
37 | typedef double ev_tstamp; |
154 | typedef double ev_tstamp; |
38 | |
155 | |
39 | /* these priorities are inclusive, higher priorities will be called earlier */ |
156 | #include <string.h> /* for memmove */ |
40 | #ifndef EV_MINPRI |
157 | |
41 | # define EV_MINPRI -2 |
158 | #ifndef EV_ATOMIC_T |
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159 | # include <signal.h> |
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160 | # define EV_ATOMIC_T sig_atomic_t volatile |
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161 | #endif |
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162 | |
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163 | #if EV_STAT_ENABLE |
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164 | # ifdef _WIN32 |
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165 | # include <time.h> |
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166 | # include <sys/types.h> |
42 | #endif |
167 | # endif |
43 | #ifndef EV_MAXPRI |
168 | # include <sys/stat.h> |
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169 | #endif |
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170 | |
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171 | /* support multiple event loops? */ |
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172 | #if EV_MULTIPLICITY |
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173 | struct ev_loop; |
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174 | # define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ |
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175 | # define EV_P_ EV_P, /* a loop as first of multiple parameters */ |
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176 | # define EV_A loop /* a loop as sole argument to a function call */ |
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177 | # define EV_A_ EV_A, /* a loop as first of multiple arguments */ |
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178 | # define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */ |
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179 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ |
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180 | # define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ |
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181 | # define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ |
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182 | #else |
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183 | # define EV_P void |
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184 | # define EV_P_ |
44 | # define EV_MAXPRI +2 |
185 | # define EV_A |
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186 | # define EV_A_ |
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187 | # define EV_DEFAULT |
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188 | # define EV_DEFAULT_ |
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189 | # define EV_DEFAULT_UC |
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190 | # define EV_DEFAULT_UC_ |
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191 | # undef EV_EMBED_ENABLE |
45 | #endif |
192 | #endif |
46 | |
193 | |
47 | /* eventmask, revents, events... */ |
194 | /* EV_INLINE is used for functions in header files */ |
48 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
195 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
49 | #define EV_NONE 0x00 |
196 | # define EV_INLINE static inline |
50 | #define EV_READ 0x01 |
197 | #else |
51 | #define EV_WRITE 0x02 |
198 | # define EV_INLINE static |
52 | #define EV_TIMEOUT 0x000100 |
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53 | #define EV_PERIODIC 0x000200 |
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54 | #define EV_SIGNAL 0x000400 |
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55 | #define EV_IDLE 0x000800 |
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56 | #define EV_CHECK 0x001000 |
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57 | #define EV_PREPARE 0x002000 |
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58 | #define EV_CHILD 0x004000 |
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59 | #define EV_ERROR 0x800000 /* sent when an error occurs */ |
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60 | |
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61 | /* can be used to add custom fields to all watchers */ |
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62 | #ifndef EV_COMMON |
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63 | # define EV_COMMON void *data |
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64 | #endif |
199 | #endif |
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200 | |
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201 | #ifdef EV_API_STATIC |
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202 | # define EV_API_DECL static |
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203 | #else |
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204 | # define EV_API_DECL extern |
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205 | #endif |
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206 | |
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207 | /* EV_PROTOTYPES can be used to switch of prototype declarations */ |
65 | #ifndef EV_PROTOTYPES |
208 | #ifndef EV_PROTOTYPES |
66 | # define EV_PROTOTYPES 1 |
209 | # define EV_PROTOTYPES 1 |
67 | #endif |
210 | #endif |
68 | |
211 | |
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212 | /*****************************************************************************/ |
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213 | |
69 | #define EV_VERSION_MAJOR 1 |
214 | #define EV_VERSION_MAJOR 4 |
70 | #define EV_VERSION_MINOR 1 |
215 | #define EV_VERSION_MINOR 27 |
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216 | |
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217 | /* eventmask, revents, events... */ |
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218 | enum { |
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219 | EV_UNDEF = (int)0xFFFFFFFF, /* guaranteed to be invalid */ |
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220 | EV_NONE = 0x00, /* no events */ |
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221 | EV_READ = 0x01, /* ev_io detected read will not block */ |
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222 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
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223 | EV__IOFDSET = 0x80, /* internal use only */ |
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224 | EV_IO = EV_READ, /* alias for type-detection */ |
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225 | EV_TIMER = 0x00000100, /* timer timed out */ |
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226 | #if EV_COMPAT3 |
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227 | EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ |
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228 | #endif |
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229 | EV_PERIODIC = 0x00000200, /* periodic timer timed out */ |
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230 | EV_SIGNAL = 0x00000400, /* signal was received */ |
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231 | EV_CHILD = 0x00000800, /* child/pid had status change */ |
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232 | EV_STAT = 0x00001000, /* stat data changed */ |
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233 | EV_IDLE = 0x00002000, /* event loop is idling */ |
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234 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
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235 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
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236 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
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237 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
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238 | EV_CLEANUP = 0x00040000, /* event loop resumed in child */ |
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239 | EV_ASYNC = 0x00080000, /* async intra-loop signal */ |
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240 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
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241 | EV_ERROR = (int)0x80000000 /* sent when an error occurs */ |
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242 | }; |
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243 | |
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244 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
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245 | #ifndef EV_COMMON |
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246 | # define EV_COMMON void *data; |
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247 | #endif |
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248 | |
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249 | #ifndef EV_CB_DECLARE |
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250 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
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251 | #endif |
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252 | #ifndef EV_CB_INVOKE |
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253 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
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254 | #endif |
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255 | |
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256 | /* not official, do not use */ |
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257 | #define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents) |
71 | |
258 | |
72 | /* |
259 | /* |
73 | * struct member types: |
260 | * struct member types: |
74 | * private: you can look at them, but not change them, and they might not mean anything to you. |
261 | * private: you may look at them, but not change them, |
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262 | * and they might not mean anything to you. |
75 | * ro: can be read anytime, but only changed when the watcher isn't active |
263 | * ro: can be read anytime, but only changed when the watcher isn't active. |
76 | * rw: can be read and modified anytime, even when the watcher is active |
264 | * rw: can be read and modified anytime, even when the watcher is active. |
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265 | * |
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266 | * some internal details that might be helpful for debugging: |
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267 | * |
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268 | * active is either 0, which means the watcher is not active, |
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269 | * or the array index of the watcher (periodics, timers) |
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270 | * or the array index + 1 (most other watchers) |
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271 | * or simply 1 for watchers that aren't in some array. |
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272 | * pending is either 0, in which case the watcher isn't, |
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273 | * or the array index + 1 in the pendings array. |
77 | */ |
274 | */ |
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275 | |
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276 | #if EV_MINPRI == EV_MAXPRI |
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277 | # define EV_DECL_PRIORITY |
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278 | #elif !defined (EV_DECL_PRIORITY) |
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279 | # define EV_DECL_PRIORITY int priority; |
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280 | #endif |
78 | |
281 | |
79 | /* shared by all watchers */ |
282 | /* shared by all watchers */ |
80 | #define EV_WATCHER(type) \ |
283 | #define EV_WATCHER(type) \ |
81 | int active; /* private */ \ |
284 | int active; /* private */ \ |
82 | int pending; /* private */ \ |
285 | int pending; /* private */ \ |
83 | int priority; /* ro */ \ |
286 | EV_DECL_PRIORITY /* private */ \ |
84 | EV_COMMON; /* rw */ \ |
287 | EV_COMMON /* rw */ \ |
85 | void (*cb)(struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ |
288 | EV_CB_DECLARE (type) /* private */ |
86 | |
289 | |
87 | #define EV_WATCHER_LIST(type) \ |
290 | #define EV_WATCHER_LIST(type) \ |
88 | EV_WATCHER (type); \ |
291 | EV_WATCHER (type) \ |
89 | struct type *next /* private */ |
292 | struct ev_watcher_list *next; /* private */ |
90 | |
293 | |
91 | #define EV_WATCHER_TIME(type) \ |
294 | #define EV_WATCHER_TIME(type) \ |
92 | EV_WATCHER (type); \ |
295 | EV_WATCHER (type) \ |
93 | ev_tstamp at /* private */ |
296 | ev_tstamp at; /* private */ |
94 | |
297 | |
95 | /* base class, nothing to see here unless you subclass */ |
298 | /* base class, nothing to see here unless you subclass */ |
96 | struct ev_watcher { |
299 | typedef struct ev_watcher |
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300 | { |
97 | EV_WATCHER (ev_watcher); |
301 | EV_WATCHER (ev_watcher) |
98 | }; |
302 | } ev_watcher; |
99 | |
303 | |
100 | /* base class, nothing to see here unless you subclass */ |
304 | /* base class, nothing to see here unless you subclass */ |
101 | struct ev_watcher_list { |
305 | typedef struct ev_watcher_list |
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306 | { |
102 | EV_WATCHER_LIST (ev_watcher_list); |
307 | EV_WATCHER_LIST (ev_watcher_list) |
103 | }; |
308 | } ev_watcher_list; |
104 | |
309 | |
105 | /* base class, nothing to see here unless you subclass */ |
310 | /* base class, nothing to see here unless you subclass */ |
106 | struct ev_watcher_time { |
311 | typedef struct ev_watcher_time |
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312 | { |
107 | EV_WATCHER_TIME (ev_watcher_time); |
313 | EV_WATCHER_TIME (ev_watcher_time) |
108 | }; |
314 | } ev_watcher_time; |
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315 | |
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316 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
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317 | /* revent EV_READ, EV_WRITE */ |
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318 | typedef struct ev_io |
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319 | { |
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320 | EV_WATCHER_LIST (ev_io) |
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321 | |
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322 | int fd; /* ro */ |
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323 | int events; /* ro */ |
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324 | } ev_io; |
109 | |
325 | |
110 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
326 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
111 | /* revent EV_TIMEOUT */ |
327 | /* revent EV_TIMEOUT */ |
112 | struct ev_timer |
328 | typedef struct ev_timer |
113 | { |
329 | { |
114 | EV_WATCHER_TIME (ev_timer); |
330 | EV_WATCHER_TIME (ev_timer) |
115 | |
331 | |
116 | ev_tstamp repeat; /* rw */ |
332 | ev_tstamp repeat; /* rw */ |
117 | }; |
333 | } ev_timer; |
118 | |
334 | |
119 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
335 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
120 | /* revent EV_PERIODIC */ |
336 | /* revent EV_PERIODIC */ |
121 | struct ev_periodic |
337 | typedef struct ev_periodic |
122 | { |
338 | { |
123 | EV_WATCHER_TIME (ev_periodic); |
339 | EV_WATCHER_TIME (ev_periodic) |
124 | |
340 | |
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341 | ev_tstamp offset; /* rw */ |
125 | ev_tstamp interval; /* rw */ |
342 | ev_tstamp interval; /* rw */ |
126 | }; |
343 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) EV_NOEXCEPT; /* rw */ |
127 | |
344 | } ev_periodic; |
128 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
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129 | /* revent EV_READ, EV_WRITE */ |
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130 | struct ev_io |
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131 | { |
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132 | EV_WATCHER_LIST (ev_io); |
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133 | |
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134 | int fd; /* ro */ |
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135 | int events; /* ro */ |
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136 | }; |
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137 | |
345 | |
138 | /* invoked when the given signal has been received */ |
346 | /* invoked when the given signal has been received */ |
139 | /* revent EV_SIGNAL */ |
347 | /* revent EV_SIGNAL */ |
140 | struct ev_signal |
348 | typedef struct ev_signal |
141 | { |
349 | { |
142 | EV_WATCHER_LIST (ev_signal); |
350 | EV_WATCHER_LIST (ev_signal) |
143 | |
351 | |
144 | int signum; /* ro */ |
352 | int signum; /* ro */ |
145 | }; |
353 | } ev_signal; |
146 | |
354 | |
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355 | /* invoked when sigchld is received and waitpid indicates the given pid */ |
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356 | /* revent EV_CHILD */ |
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357 | /* does not support priorities */ |
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358 | typedef struct ev_child |
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359 | { |
|
|
360 | EV_WATCHER_LIST (ev_child) |
|
|
361 | |
|
|
362 | int flags; /* private */ |
|
|
363 | int pid; /* ro */ |
|
|
364 | int rpid; /* rw, holds the received pid */ |
|
|
365 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
|
|
366 | } ev_child; |
|
|
367 | |
|
|
368 | #if EV_STAT_ENABLE |
|
|
369 | /* st_nlink = 0 means missing file or other error */ |
|
|
370 | # ifdef _WIN32 |
|
|
371 | typedef struct _stati64 ev_statdata; |
|
|
372 | # else |
|
|
373 | typedef struct stat ev_statdata; |
|
|
374 | # endif |
|
|
375 | |
|
|
376 | /* invoked each time the stat data changes for a given path */ |
|
|
377 | /* revent EV_STAT */ |
|
|
378 | typedef struct ev_stat |
|
|
379 | { |
|
|
380 | EV_WATCHER_LIST (ev_stat) |
|
|
381 | |
|
|
382 | ev_timer timer; /* private */ |
|
|
383 | ev_tstamp interval; /* ro */ |
|
|
384 | const char *path; /* ro */ |
|
|
385 | ev_statdata prev; /* ro */ |
|
|
386 | ev_statdata attr; /* ro */ |
|
|
387 | |
|
|
388 | int wd; /* wd for inotify, fd for kqueue */ |
|
|
389 | } ev_stat; |
|
|
390 | #endif |
|
|
391 | |
|
|
392 | #if EV_IDLE_ENABLE |
147 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
393 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
148 | /* revent EV_IDLE */ |
394 | /* revent EV_IDLE */ |
149 | struct ev_idle |
395 | typedef struct ev_idle |
150 | { |
396 | { |
151 | EV_WATCHER (ev_idle); |
397 | EV_WATCHER (ev_idle) |
152 | }; |
398 | } ev_idle; |
|
|
399 | #endif |
153 | |
400 | |
154 | /* invoked for each run of the mainloop, just before the blocking call */ |
401 | /* invoked for each run of the mainloop, just before the blocking call */ |
155 | /* you can still change events in any way you like */ |
402 | /* you can still change events in any way you like */ |
156 | /* revent EV_PREPARE */ |
403 | /* revent EV_PREPARE */ |
157 | struct ev_prepare |
404 | typedef struct ev_prepare |
158 | { |
405 | { |
159 | EV_WATCHER (ev_prepare); |
406 | EV_WATCHER (ev_prepare) |
160 | }; |
407 | } ev_prepare; |
161 | |
408 | |
162 | /* invoked for each run of the mainloop, just after the blocking call */ |
409 | /* invoked for each run of the mainloop, just after the blocking call */ |
163 | /* revent EV_CHECK */ |
410 | /* revent EV_CHECK */ |
164 | struct ev_check |
411 | typedef struct ev_check |
165 | { |
412 | { |
166 | EV_WATCHER (ev_check); |
413 | EV_WATCHER (ev_check) |
|
|
414 | } ev_check; |
|
|
415 | |
|
|
416 | #if EV_FORK_ENABLE |
|
|
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 | #endif |
|
|
424 | |
|
|
425 | #if EV_CLEANUP_ENABLE |
|
|
426 | /* is invoked just before the loop gets destroyed */ |
|
|
427 | /* revent EV_CLEANUP */ |
|
|
428 | typedef struct ev_cleanup |
|
|
429 | { |
|
|
430 | EV_WATCHER (ev_cleanup) |
|
|
431 | } ev_cleanup; |
|
|
432 | #endif |
|
|
433 | |
|
|
434 | #if EV_EMBED_ENABLE |
|
|
435 | /* used to embed an event loop inside another */ |
|
|
436 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
|
|
437 | typedef struct ev_embed |
|
|
438 | { |
|
|
439 | EV_WATCHER (ev_embed) |
|
|
440 | |
|
|
441 | struct ev_loop *other; /* ro */ |
|
|
442 | ev_io io; /* private */ |
|
|
443 | ev_prepare prepare; /* private */ |
|
|
444 | ev_check check; /* unused */ |
|
|
445 | ev_timer timer; /* unused */ |
|
|
446 | ev_periodic periodic; /* unused */ |
|
|
447 | ev_idle idle; /* unused */ |
|
|
448 | ev_fork fork; /* private */ |
|
|
449 | #if EV_CLEANUP_ENABLE |
|
|
450 | ev_cleanup cleanup; /* unused */ |
|
|
451 | #endif |
|
|
452 | } ev_embed; |
|
|
453 | #endif |
|
|
454 | |
|
|
455 | #if EV_ASYNC_ENABLE |
|
|
456 | /* invoked when somebody calls ev_async_send on the watcher */ |
|
|
457 | /* revent EV_ASYNC */ |
|
|
458 | typedef struct ev_async |
|
|
459 | { |
|
|
460 | EV_WATCHER (ev_async) |
|
|
461 | |
|
|
462 | EV_ATOMIC_T sent; /* private */ |
|
|
463 | } ev_async; |
|
|
464 | |
|
|
465 | # define ev_async_pending(w) (+(w)->sent) |
|
|
466 | #endif |
|
|
467 | |
|
|
468 | /* the presence of this union forces similar struct layout */ |
|
|
469 | union ev_any_watcher |
|
|
470 | { |
|
|
471 | struct ev_watcher w; |
|
|
472 | struct ev_watcher_list wl; |
|
|
473 | |
|
|
474 | struct ev_io io; |
|
|
475 | struct ev_timer timer; |
|
|
476 | struct ev_periodic periodic; |
|
|
477 | struct ev_signal signal; |
|
|
478 | struct ev_child child; |
|
|
479 | #if EV_STAT_ENABLE |
|
|
480 | struct ev_stat stat; |
|
|
481 | #endif |
|
|
482 | #if EV_IDLE_ENABLE |
|
|
483 | struct ev_idle idle; |
|
|
484 | #endif |
|
|
485 | struct ev_prepare prepare; |
|
|
486 | struct ev_check check; |
|
|
487 | #if EV_FORK_ENABLE |
|
|
488 | struct ev_fork fork; |
|
|
489 | #endif |
|
|
490 | #if EV_CLEANUP_ENABLE |
|
|
491 | struct ev_cleanup cleanup; |
|
|
492 | #endif |
|
|
493 | #if EV_EMBED_ENABLE |
|
|
494 | struct ev_embed embed; |
|
|
495 | #endif |
|
|
496 | #if EV_ASYNC_ENABLE |
|
|
497 | struct ev_async async; |
|
|
498 | #endif |
167 | }; |
499 | }; |
168 | |
500 | |
169 | /* invoked when sigchld is received and waitpid indicates the givne pid */ |
501 | /* flag bits for ev_default_loop and ev_loop_new */ |
170 | /* revent EV_CHILD */ |
502 | enum { |
171 | /* does not support priorities */ |
503 | /* the default */ |
172 | struct ev_child |
504 | EVFLAG_AUTO = 0x00000000U, /* not quite a mask */ |
173 | { |
505 | /* flag bits */ |
174 | EV_WATCHER_LIST (ev_child); |
506 | EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */ |
175 | |
507 | EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */ |
176 | int pid; /* ro */ |
508 | /* debugging/feature disable */ |
177 | int rpid; /* rw, holds the received pid */ |
509 | EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ |
178 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
510 | #if EV_COMPAT3 |
|
|
511 | EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ |
|
|
512 | #endif |
|
|
513 | EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */ |
|
|
514 | EVFLAG_NOSIGMASK = 0x00400000U /* avoid modifying the signal mask */ |
179 | }; |
515 | }; |
180 | |
516 | |
181 | #define EVMETHOD_AUTO 0 /* consults environment */ |
517 | /* method bits to be ored together */ |
182 | #define EVMETHOD_SELECT 1 |
518 | enum { |
183 | #define EVMETHOD_POLL 2 |
519 | EVBACKEND_SELECT = 0x00000001U, /* available just about anywhere */ |
184 | #define EVMETHOD_EPOLL 4 |
520 | EVBACKEND_POLL = 0x00000002U, /* !win, !aix, broken on osx */ |
185 | #define EVMETHOD_KQUEUE 8 |
521 | EVBACKEND_EPOLL = 0x00000004U, /* linux */ |
186 | #define EVMETHOD_DEVPOLL 16 /* NYI */ |
522 | EVBACKEND_KQUEUE = 0x00000008U, /* bsd, broken on osx */ |
187 | #define EVMETHOD_PORT 32 /* NYI */ |
523 | EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ |
188 | #define EVMETHOD_ANY ~0 /* any method, do not consult env */ |
524 | EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ |
|
|
525 | EVBACKEND_LINUXAIO = 0x00000040U, /* linuix AIO */ |
|
|
526 | EVBACKEND_IOURING = 0x00000080U, /* linux io_uring, TBD */ |
|
|
527 | EVBACKEND_ALL = 0x000000FFU, /* all known backends */ |
|
|
528 | EVBACKEND_MASK = 0x0000FFFFU /* all future backends */ |
|
|
529 | }; |
|
|
530 | |
189 | #if EV_PROTOTYPES |
531 | #if EV_PROTOTYPES |
190 | extern int ev_method; |
532 | EV_API_DECL int ev_version_major (void) EV_NOEXCEPT; |
191 | int ev_init (int methods); /* returns ev_method */ |
533 | EV_API_DECL int ev_version_minor (void) EV_NOEXCEPT; |
192 | int ev_version_major (void); |
|
|
193 | int ev_version_minor (void); |
|
|
194 | |
534 | |
195 | /* these three calls are suitable for plugging into pthread_atfork */ |
535 | EV_API_DECL unsigned int ev_supported_backends (void) EV_NOEXCEPT; |
196 | void ev_fork_prepare (void); |
536 | EV_API_DECL unsigned int ev_recommended_backends (void) EV_NOEXCEPT; |
197 | void ev_fork_parent (void); |
537 | EV_API_DECL unsigned int ev_embeddable_backends (void) EV_NOEXCEPT; |
198 | void ev_fork_child (void); |
|
|
199 | |
538 | |
|
|
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 */ |
|
|
541 | |
|
|
542 | /* Sets the allocation function to use, works like realloc. |
|
|
543 | * It is used to allocate and free memory. |
|
|
544 | * If it returns zero when memory needs to be allocated, the library might abort |
|
|
545 | * or take some potentially destructive action. |
|
|
546 | * The default is your system realloc function. |
|
|
547 | */ |
|
|
548 | EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT; |
|
|
549 | |
|
|
550 | /* set the callback function to call on a |
|
|
551 | * retryable syscall error |
|
|
552 | * (such as failed select, poll, epoll_wait) |
|
|
553 | */ |
|
|
554 | EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT; |
|
|
555 | |
|
|
556 | #if EV_MULTIPLICITY |
|
|
557 | |
|
|
558 | /* the default loop is the only one that handles signals and child watchers */ |
|
|
559 | /* you can call this as often as you like */ |
|
|
560 | EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT; |
|
|
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 |
|
|
568 | { |
|
|
569 | extern struct ev_loop *ev_default_loop_ptr; |
|
|
570 | |
|
|
571 | return ev_default_loop_ptr; |
|
|
572 | } |
|
|
573 | |
|
|
574 | EV_INLINE int |
|
|
575 | ev_is_default_loop (EV_P) EV_NOEXCEPT |
|
|
576 | { |
|
|
577 | return EV_A == EV_DEFAULT_UC; |
|
|
578 | } |
|
|
579 | |
|
|
580 | /* create and destroy alternative loops that don't handle signals */ |
|
|
581 | EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT; |
|
|
582 | |
200 | extern ev_tstamp ev_now; /* 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 */ |
201 | ev_tstamp ev_time (void); |
|
|
202 | #endif |
|
|
203 | |
584 | |
204 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
585 | #else |
205 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
586 | |
|
|
587 | EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_NOEXCEPT; /* returns true when successful */ |
|
|
588 | |
|
|
589 | EV_API_DECL ev_tstamp ev_rt_now; |
|
|
590 | |
|
|
591 | EV_INLINE ev_tstamp |
|
|
592 | ev_now (void) EV_NOEXCEPT |
|
|
593 | { |
|
|
594 | return ev_rt_now; |
|
|
595 | } |
|
|
596 | |
|
|
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 | |
|
|
609 | /* this needs to be called after fork, to duplicate the loop */ |
|
|
610 | /* when you want to re-use it in the child */ |
|
|
611 | /* you can call it in either the parent or the child */ |
|
|
612 | /* you can actually call it at any time, anywhere :) */ |
|
|
613 | EV_API_DECL void ev_loop_fork (EV_P) EV_NOEXCEPT; |
|
|
614 | |
|
|
615 | EV_API_DECL unsigned int ev_backend (EV_P) EV_NOEXCEPT; /* backend in use by loop */ |
|
|
616 | |
|
|
617 | EV_API_DECL void ev_now_update (EV_P) EV_NOEXCEPT; /* update event loop time */ |
|
|
618 | |
|
|
619 | #if EV_WALK_ENABLE |
|
|
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 */ |
|
|
638 | EVBREAK_ALL = 2 /* unloop all loops */ |
|
|
639 | }; |
|
|
640 | |
206 | #if EV_PROTOTYPES |
641 | #if EV_PROTOTYPES |
207 | void ev_loop (int flags); |
642 | EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0)); |
208 | extern int ev_loop_done; /* 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 */ |
209 | |
644 | |
|
|
645 | /* |
|
|
646 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
|
|
647 | * keeps one reference. if you have a long-running watcher you never unregister that |
|
|
648 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
|
|
649 | */ |
|
|
650 | EV_API_DECL void ev_ref (EV_P) EV_NOEXCEPT; |
|
|
651 | EV_API_DECL void ev_unref (EV_P) EV_NOEXCEPT; |
|
|
652 | |
|
|
653 | /* |
210 | /* 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 |
211 | /* if timeout is < 0, do wait indefinitely */ |
655 | * if timeout is < 0, do wait indefinitely |
|
|
656 | */ |
212 | void ev_once (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 | # if EV_FEATURE_API |
|
|
660 | EV_API_DECL unsigned int ev_iteration (EV_P) EV_NOEXCEPT; /* number of loop iterations */ |
|
|
661 | EV_API_DECL unsigned int ev_depth (EV_P) EV_NOEXCEPT; /* #ev_loop enters - #ev_loop leaves */ |
|
|
662 | EV_API_DECL void ev_verify (EV_P) EV_NOEXCEPT; /* abort if loop data corrupted */ |
|
|
663 | |
|
|
664 | EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */ |
|
|
665 | EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT; /* sleep at least this time, default 0 */ |
|
|
666 | |
|
|
667 | /* advanced stuff for threading etc. support, see docs */ |
|
|
668 | EV_API_DECL void ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT; |
|
|
669 | EV_API_DECL void *ev_userdata (EV_P) EV_NOEXCEPT; |
|
|
670 | typedef void (*ev_loop_callback)(EV_P); |
|
|
671 | EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT; |
|
|
672 | /* C++ doesn't allow the use of the ev_loop_callback typedef here, so we need to spell it out */ |
|
|
673 | 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; |
|
|
674 | |
|
|
675 | EV_API_DECL unsigned int ev_pending_count (EV_P) EV_NOEXCEPT; /* number of pending events, if any */ |
|
|
676 | EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
|
|
677 | |
|
|
678 | /* |
|
|
679 | * stop/start the timer handling. |
|
|
680 | */ |
|
|
681 | EV_API_DECL void ev_suspend (EV_P) EV_NOEXCEPT; |
|
|
682 | EV_API_DECL void ev_resume (EV_P) EV_NOEXCEPT; |
|
|
683 | #endif |
|
|
684 | |
213 | #endif |
685 | #endif |
214 | |
686 | |
215 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
687 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
216 | /* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
688 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
217 | #define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0) |
689 | #define ev_init(ev,cb_) do { \ |
|
|
690 | ((ev_watcher *)(void *)(ev))->active = \ |
|
|
691 | ((ev_watcher *)(void *)(ev))->pending = 0; \ |
|
|
692 | ev_set_priority ((ev), 0); \ |
|
|
693 | ev_set_cb ((ev), cb_); \ |
|
|
694 | } while (0) |
218 | |
695 | |
219 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
696 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
220 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
697 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
221 | #define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) |
698 | #define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0) |
222 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
699 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
|
|
700 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
|
|
701 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
223 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
702 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
224 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
703 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
225 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
704 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
226 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
705 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
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706 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
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707 | #define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */ |
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708 | #define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
227 | |
709 | |
228 | #define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
710 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
229 | #define ev_timer_init(ev,cb,after,repeat) do { ev_watcher_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
711 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
230 | #define ev_periodic_init(ev,cb,at,interval) do { ev_watcher_init ((ev), (cb)); ev_periodic_set ((ev),(at),(interval)); } while (0) |
712 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
231 | #define ev_signal_init(ev,cb,signum) do { ev_watcher_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
713 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
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714 | #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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715 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) |
232 | #define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
716 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
233 | #define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
717 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
234 | #define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
718 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
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719 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
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720 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
235 | #define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
721 | #define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0) |
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722 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
236 | |
723 | |
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724 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
237 | #define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ |
725 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
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726 | |
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727 | #define ev_cb_(ev) (ev)->cb /* rw */ |
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728 | #define ev_cb(ev) (memmove (&ev_cb_ (ev), &((ev_watcher *)(ev))->cb, sizeof (ev_cb_ (ev))), (ev)->cb) |
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729 | |
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730 | #if EV_MINPRI == EV_MAXPRI |
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731 | # define ev_priority(ev) ((ev), EV_MINPRI) |
238 | #define ev_set_priority(ev,pri) (ev)->priority = pri |
732 | # define ev_set_priority(ev,pri) ((ev), (pri)) |
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733 | #else |
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734 | # define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority)) |
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735 | # define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) |
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736 | #endif |
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737 | |
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738 | #define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at) |
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739 | |
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740 | #ifndef ev_set_cb |
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741 | # define ev_set_cb(ev,cb_) (ev_cb_ (ev) = (cb_), memmove (&((ev_watcher *)(ev))->cb, &ev_cb_ (ev), sizeof (ev_cb_ (ev)))) |
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742 | #endif |
239 | |
743 | |
240 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
744 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
241 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
745 | /* stopping (disabling, deleting) a watcher does nothing unless it's already running */ |
242 | #if EV_PROTOTYPES |
746 | #if EV_PROTOTYPES |
243 | void ev_io_start (struct ev_io *w); |
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244 | void ev_io_stop (struct ev_io *w); |
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245 | |
747 | |
246 | void ev_timer_start (struct ev_timer *w); |
748 | /* feeds an event into a watcher as if the event actually occurred */ |
247 | void ev_timer_stop (struct ev_timer *w); |
749 | /* accepts any ev_watcher type */ |
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750 | EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT; |
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751 | EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT; |
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752 | #if EV_SIGNAL_ENABLE |
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753 | EV_API_DECL void ev_feed_signal (int signum) EV_NOEXCEPT; |
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754 | EV_API_DECL void ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT; |
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755 | #endif |
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756 | EV_API_DECL void ev_invoke (EV_P_ void *w, int revents); |
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757 | EV_API_DECL int ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT; |
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758 | |
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759 | EV_API_DECL void ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT; |
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760 | EV_API_DECL void ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT; |
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761 | |
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762 | EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT; |
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763 | EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT; |
248 | void ev_timer_again (struct ev_timer *w); /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
764 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
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765 | EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT; |
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766 | /* return remaining time */ |
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767 | EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT; |
249 | |
768 | |
250 | void ev_periodic_start (struct ev_periodic *w); |
769 | #if EV_PERIODIC_ENABLE |
251 | void ev_periodic_stop (struct ev_periodic *w); |
770 | EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT; |
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771 | EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT; |
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772 | EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT; |
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773 | #endif |
252 | |
774 | |
253 | void ev_signal_start (struct ev_signal *w); |
775 | /* only supported in the default loop */ |
254 | void ev_signal_stop (struct ev_signal *w); |
776 | #if EV_SIGNAL_ENABLE |
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777 | EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT; |
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778 | EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT; |
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779 | #endif |
255 | |
780 | |
256 | void ev_idle_start (struct ev_idle *w); |
781 | /* only supported in the default loop */ |
257 | void ev_idle_stop (struct ev_idle *w); |
782 | # if EV_CHILD_ENABLE |
258 | |
783 | EV_API_DECL void ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT; |
259 | void ev_prepare_start (struct ev_prepare *w); |
784 | EV_API_DECL void ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT; |
260 | void ev_prepare_stop (struct ev_prepare *w); |
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261 | |
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262 | void ev_check_start (struct ev_check *w); |
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263 | void ev_check_stop (struct ev_check *w); |
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264 | |
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265 | void ev_child_start (struct ev_child *w); |
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266 | void ev_child_stop (struct ev_child *w); |
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267 | #endif |
785 | # endif |
268 | |
786 | |
269 | #ifdef __cplusplus |
787 | # if EV_STAT_ENABLE |
270 | } |
788 | EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT; |
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789 | EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT; |
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790 | EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT; |
271 | #endif |
791 | # endif |
272 | |
792 | |
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793 | # if EV_IDLE_ENABLE |
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794 | EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT; |
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795 | EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT; |
273 | #endif |
796 | # endif |
274 | |
797 | |
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798 | #if EV_PREPARE_ENABLE |
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799 | EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT; |
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800 | EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT; |
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801 | #endif |
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802 | |
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803 | #if EV_CHECK_ENABLE |
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804 | EV_API_DECL void ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT; |
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805 | EV_API_DECL void ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT; |
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806 | #endif |
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807 | |
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808 | # if EV_FORK_ENABLE |
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809 | EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT; |
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810 | EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT; |
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811 | # endif |
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812 | |
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813 | # if EV_CLEANUP_ENABLE |
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814 | EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT; |
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815 | EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT; |
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816 | # endif |
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817 | |
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818 | # if EV_EMBED_ENABLE |
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819 | /* only supported when loop to be embedded is in fact embeddable */ |
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820 | EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT; |
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821 | EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT; |
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822 | EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT; |
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823 | # endif |
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824 | |
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825 | # if EV_ASYNC_ENABLE |
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826 | EV_API_DECL void ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT; |
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827 | EV_API_DECL void ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT; |
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828 | EV_API_DECL void ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT; |
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829 | # endif |
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830 | |
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831 | #if EV_COMPAT3 |
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832 | #define EVLOOP_NONBLOCK EVRUN_NOWAIT |
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833 | #define EVLOOP_ONESHOT EVRUN_ONCE |
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834 | #define EVUNLOOP_CANCEL EVBREAK_CANCEL |
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835 | #define EVUNLOOP_ONE EVBREAK_ONE |
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836 | #define EVUNLOOP_ALL EVBREAK_ALL |
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837 | #if EV_PROTOTYPES |
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838 | EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } |
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839 | EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } |
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840 | EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); } |
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841 | EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); } |
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842 | #if EV_FEATURE_API |
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843 | EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); } |
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844 | EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); } |
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845 | EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } |
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846 | #endif |
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847 | #endif |
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848 | #else |
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849 | typedef struct ev_loop ev_loop; |
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850 | #endif |
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851 | |
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852 | #endif |
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853 | |
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854 | EV_CPP(}) |
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855 | |
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856 | #endif |
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857 | |