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1 | /* |
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2 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions are |
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7 | * met: |
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8 | * |
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9 | * * Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * |
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12 | * * Redistributions in binary form must reproduce the above |
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13 | * copyright notice, this list of conditions and the following |
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14 | * disclaimer in the documentation and/or other materials provided |
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15 | * with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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18 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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19 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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20 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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21 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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22 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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23 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | */ |
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29 | |
1 | #ifndef EV_H |
30 | #ifndef EV_H__ |
2 | #define EV_H |
31 | #define EV_H__ |
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32 | |
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33 | #ifdef __cplusplus |
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34 | extern "C" { |
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35 | #endif |
3 | |
36 | |
4 | typedef double ev_tstamp; |
37 | typedef double ev_tstamp; |
5 | |
38 | |
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39 | /* these priorities are inclusive, higher priorities will be called earlier */ |
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40 | #ifndef EV_MINPRI |
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41 | # define EV_MINPRI -2 |
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42 | #endif |
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43 | #ifndef EV_MAXPRI |
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44 | # define EV_MAXPRI +2 |
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45 | #endif |
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46 | |
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47 | #ifndef EV_MULTIPLICITY |
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48 | # define EV_MULTIPLICITY 1 |
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49 | #endif |
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50 | |
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51 | #ifndef EV_PERIODIC_ENABLE |
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52 | # define EV_PERIODIC_ENABLE 1 |
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53 | #endif |
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54 | |
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55 | #ifndef EV_STAT_ENABLE |
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56 | # define EV_STAT_ENABLE 1 |
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57 | #endif |
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58 | |
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59 | #ifndef EV_IDLE_ENABLE |
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60 | # define EV_IDLE_ENABLE 1 |
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61 | #endif |
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62 | |
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63 | #ifndef EV_FORK_ENABLE |
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64 | # define EV_FORK_ENABLE 1 |
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65 | #endif |
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66 | |
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67 | #ifndef EV_EMBED_ENABLE |
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68 | # define EV_EMBED_ENABLE 1 |
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69 | #endif |
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70 | |
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71 | /*****************************************************************************/ |
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72 | |
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73 | #if EV_STAT_ENABLE |
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74 | # include <sys/stat.h> |
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75 | #endif |
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76 | |
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77 | /* support multiple event loops? */ |
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78 | #if EV_MULTIPLICITY |
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79 | struct ev_loop; |
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80 | # define EV_P struct ev_loop *loop |
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81 | # define EV_P_ EV_P, |
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82 | # define EV_A loop |
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83 | # define EV_A_ EV_A, |
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84 | # define EV_DEFAULT ev_default_loop (0) |
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85 | # define EV_DEFAULT_ EV_DEFAULT, |
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86 | #else |
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87 | # define EV_P void |
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88 | # define EV_P_ |
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89 | # define EV_A |
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90 | # define EV_A_ |
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91 | # define EV_DEFAULT |
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92 | # define EV_DEFAULT_ |
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93 | |
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94 | # undef EV_EMBED_ENABLE |
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95 | #endif |
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96 | |
6 | /* eventmask, revents, events... */ |
97 | /* eventmask, revents, events... */ |
7 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
98 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
8 | #define EV_NONE 0 |
99 | #define EV_NONE 0x00L /* no events */ |
9 | #define EV_READ 1 |
100 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
10 | #define EV_WRITE 2 |
101 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
11 | #define EV_TIMEOUT 4 |
102 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
12 | #define EV_SIGNAL 8 |
103 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
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104 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
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105 | #define EV_CHILD 0x00000800L /* child/pid had status change */ |
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106 | #define EV_STAT 0x00001000L /* stat data changed */ |
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107 | #define EV_IDLE 0x00002000L /* event loop is idling */ |
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108 | #define EV_PREPARE 0x00004000L /* event loop about to poll */ |
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109 | #define EV_CHECK 0x00008000L /* event loop finished poll */ |
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110 | #define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ |
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111 | #define EV_FORK 0x00020000L /* event loop resumed in child */ |
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112 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
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113 | |
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114 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
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115 | #ifndef EV_COMMON |
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116 | # define EV_COMMON void *data; |
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117 | #endif |
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118 | #ifndef EV_PROTOTYPES |
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119 | # define EV_PROTOTYPES 1 |
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120 | #endif |
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121 | |
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122 | #define EV_VERSION_MAJOR 2 |
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123 | #define EV_VERSION_MINOR 0 |
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124 | |
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125 | #ifndef EV_CB_DECLARE |
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126 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
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127 | #endif |
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128 | #ifndef EV_CB_INVOKE |
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129 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
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130 | #endif |
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131 | |
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132 | /* |
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133 | * struct member types: |
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134 | * private: you can look at them, but not change them, and they might not mean anything to you. |
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135 | * ro: can be read anytime, but only changed when the watcher isn't active |
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136 | * rw: can be read and modified anytime, even when the watcher is active |
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137 | */ |
13 | |
138 | |
14 | /* shared by all watchers */ |
139 | /* shared by all watchers */ |
15 | #define EV_WATCHER(type) \ |
140 | #define EV_WATCHER(type) \ |
16 | int active; /* private */ \ |
141 | int active; /* private */ \ |
17 | int pending; /* private */ \ |
142 | int pending; /* private */ \ |
18 | void *data; /* rw */ \ |
143 | int priority; /* private */ \ |
19 | void (*cb)(struct type *, int revents) /* rw */ |
144 | EV_COMMON /* rw */ \ |
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145 | EV_CB_DECLARE (type) /* private */ |
20 | |
146 | |
21 | #define EV_WATCHER_LIST(type) \ |
147 | #define EV_WATCHER_LIST(type) \ |
22 | EV_WATCHER (type); \ |
148 | EV_WATCHER (type) \ |
23 | struct type *next /* private */ |
149 | struct ev_watcher_list *next; /* private */ |
24 | |
150 | |
25 | struct ev_timer |
151 | #define EV_WATCHER_TIME(type) \ |
26 | { |
152 | EV_WATCHER (type) \ |
27 | EV_WATCHER_LIST (ev_timer); |
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28 | |
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29 | ev_tstamp at; /* private */ |
153 | ev_tstamp at; /* private */ |
30 | ev_tstamp repeat; /* rw */ |
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31 | unsigned char is_abs; /* ro */ |
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32 | }; |
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33 | |
154 | |
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155 | /* base class, nothing to see here unless you subclass */ |
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156 | typedef struct ev_watcher |
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157 | { |
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158 | EV_WATCHER (ev_watcher) |
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159 | } ev_watcher; |
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160 | |
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161 | /* base class, nothing to see here unless you subclass */ |
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162 | typedef struct ev_watcher_list |
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163 | { |
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164 | EV_WATCHER_LIST (ev_watcher_list) |
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165 | } ev_watcher_list; |
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166 | |
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167 | /* base class, nothing to see here unless you subclass */ |
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168 | typedef struct ev_watcher_time |
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169 | { |
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170 | EV_WATCHER_TIME (ev_watcher_time) |
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171 | } ev_watcher_time; |
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172 | |
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173 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
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174 | /* revent EV_READ, EV_WRITE */ |
34 | struct ev_io |
175 | typedef struct ev_io |
35 | { |
176 | { |
36 | EV_WATCHER_LIST (ev_io); |
177 | EV_WATCHER_LIST (ev_io) |
37 | |
178 | |
38 | int fd; /* ro */ |
179 | int fd; /* ro */ |
39 | int events; /* ro */ |
180 | int events; /* ro */ |
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181 | } ev_io; |
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182 | |
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183 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
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184 | /* revent EV_TIMEOUT */ |
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185 | typedef struct ev_timer |
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186 | { |
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187 | EV_WATCHER_TIME (ev_timer) |
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188 | |
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189 | ev_tstamp repeat; /* rw */ |
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190 | } ev_timer; |
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191 | |
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192 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
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193 | /* revent EV_PERIODIC */ |
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194 | typedef struct ev_periodic |
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195 | { |
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196 | EV_WATCHER_TIME (ev_periodic) |
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197 | |
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198 | ev_tstamp offset; /* rw */ |
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199 | ev_tstamp interval; /* rw */ |
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200 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
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201 | } ev_periodic; |
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202 | |
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203 | /* invoked when the given signal has been received */ |
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204 | /* revent EV_SIGNAL */ |
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205 | typedef struct ev_signal |
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206 | { |
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207 | EV_WATCHER_LIST (ev_signal) |
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208 | |
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209 | int signum; /* ro */ |
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210 | } ev_signal; |
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211 | |
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212 | /* invoked when sigchld is received and waitpid indicates the given pid */ |
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213 | /* revent EV_CHILD */ |
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214 | /* does not support priorities */ |
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215 | typedef struct ev_child |
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216 | { |
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217 | EV_WATCHER_LIST (ev_child) |
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218 | |
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219 | int pid; /* ro */ |
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220 | int rpid; /* rw, holds the received pid */ |
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221 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
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222 | } ev_child; |
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223 | |
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224 | #if EV_STAT_ENABLE |
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225 | /* st_nlink = 0 means missing file or other error */ |
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226 | # ifdef _WIN32 |
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227 | typedef struct _stati64 ev_statdata; |
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228 | # else |
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229 | typedef struct stat ev_statdata; |
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230 | # endif |
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231 | |
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232 | /* invoked each time the stat data changes for a given path */ |
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233 | /* revent EV_STAT */ |
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234 | typedef struct ev_stat |
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235 | { |
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236 | EV_WATCHER_LIST (ev_stat) |
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237 | |
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238 | ev_timer timer; /* private */ |
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239 | ev_tstamp interval; /* ro */ |
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240 | const char *path; /* ro */ |
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241 | ev_statdata prev; /* ro */ |
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242 | ev_statdata attr; /* ro */ |
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243 | |
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244 | int wd; /* wd for inotify, fd for kqueue */ |
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245 | } ev_stat; |
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246 | #endif |
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247 | |
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248 | #if EV_IDLE_ENABLE |
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249 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
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250 | /* revent EV_IDLE */ |
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251 | typedef struct ev_idle |
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252 | { |
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253 | EV_WATCHER (ev_idle) |
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254 | } ev_idle; |
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255 | #endif |
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256 | |
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257 | /* invoked for each run of the mainloop, just before the blocking call */ |
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258 | /* you can still change events in any way you like */ |
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259 | /* revent EV_PREPARE */ |
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260 | typedef struct ev_prepare |
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261 | { |
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262 | EV_WATCHER (ev_prepare) |
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263 | } ev_prepare; |
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264 | |
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265 | /* invoked for each run of the mainloop, just after the blocking call */ |
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266 | /* revent EV_CHECK */ |
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267 | typedef struct ev_check |
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268 | { |
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269 | EV_WATCHER (ev_check) |
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270 | } ev_check; |
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271 | |
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272 | #if EV_FORK_ENABLE |
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273 | /* the callback gets invoked before check in the child process when a fork was detected */ |
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274 | typedef struct ev_fork |
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275 | { |
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276 | EV_WATCHER (ev_fork) |
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277 | } ev_fork; |
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278 | #endif |
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279 | |
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280 | #if EV_EMBED_ENABLE |
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281 | /* used to embed an event loop inside another */ |
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282 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
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283 | typedef struct ev_embed |
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284 | { |
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285 | EV_WATCHER (ev_embed) |
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286 | |
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287 | ev_io io; /* private */ |
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288 | struct ev_loop *loop; /* ro */ |
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289 | } ev_embed; |
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290 | #endif |
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291 | |
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292 | /* the presence of this union forces similar struct layout */ |
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293 | union ev_any_watcher |
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294 | { |
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295 | struct ev_watcher w; |
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296 | struct ev_watcher_list wl; |
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297 | |
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298 | struct ev_io io; |
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299 | struct ev_timer timer; |
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300 | struct ev_periodic periodic; |
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301 | struct ev_signal signal; |
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302 | struct ev_child child; |
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303 | #if EV_STAT_ENABLE |
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304 | struct ev_stat stat; |
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305 | #endif |
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306 | #if EV_IDLE_ENABLE |
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307 | struct ev_idle idle; |
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308 | #endif |
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309 | struct ev_prepare prepare; |
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310 | struct ev_check check; |
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311 | #if EV_FORK_ENABLE |
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312 | struct ev_fork fork; |
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313 | #endif |
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314 | #if EV_EMBED_ENABLE |
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315 | struct ev_embed embed; |
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316 | #endif |
40 | }; |
317 | }; |
41 | |
318 | |
42 | struct ev_signal |
319 | /* bits for ev_default_loop and ev_loop_new */ |
43 | { |
320 | /* the default */ |
44 | EV_WATCHER_LIST (ev_signal); |
321 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
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322 | /* flag bits */ |
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323 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
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324 | #define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */ |
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325 | /* method bits to be ored together */ |
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326 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
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327 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
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328 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
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329 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
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330 | #define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ |
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331 | #define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ |
45 | |
332 | |
46 | int signum; /* ro */ |
333 | #if EV_PROTOTYPES |
47 | }; |
334 | int ev_version_major (void); |
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335 | int ev_version_minor (void); |
48 | |
336 | |
49 | #define EVMETHOD_NONE 0 |
337 | unsigned int ev_supported_backends (void); |
50 | #define EVMETHOD_SELECT 1 |
338 | unsigned int ev_recommended_backends (void); |
51 | #define EVMETHOD_EPOLL 2 |
339 | unsigned int ev_embeddable_backends (void); |
52 | int ev_init (int flags); |
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53 | extern int ev_method; |
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54 | |
340 | |
55 | void ev_prefork (void); |
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56 | void ev_postfork_parent (void); |
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57 | void ev_postfork_child (void); |
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58 | |
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59 | extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */ |
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60 | ev_tstamp ev_time (void); |
341 | ev_tstamp ev_time (void); |
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342 | |
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343 | /* Sets the allocation function to use, works like realloc. |
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344 | * It is used to allocate and free memory. |
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345 | * If it returns zero when memory needs to be allocated, the library might abort |
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346 | * or take some potentially destructive action. |
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347 | * The default is your system realloc function. |
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348 | */ |
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349 | void ev_set_allocator (void *(*cb)(void *ptr, long size)); |
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350 | |
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351 | /* set the callback function to call on a |
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352 | * retryable syscall error |
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353 | * (such as failed select, poll, epoll_wait) |
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354 | */ |
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355 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
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356 | |
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357 | # if EV_MULTIPLICITY |
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358 | /* the default loop is the only one that handles signals and child watchers */ |
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359 | /* you can call this as often as you like */ |
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360 | static struct ev_loop * |
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361 | ev_default_loop (unsigned int flags) |
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362 | { |
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363 | extern struct ev_loop *ev_default_loop_ptr; |
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364 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
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365 | |
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366 | if (!ev_default_loop_ptr) |
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367 | ev_default_loop_init (flags); |
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368 | |
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369 | return ev_default_loop_ptr; |
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370 | } |
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371 | |
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372 | /* create and destroy alternative loops that don't handle signals */ |
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373 | struct ev_loop *ev_loop_new (unsigned int flags); |
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374 | void ev_loop_destroy (EV_P); |
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375 | void ev_loop_fork (EV_P); |
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376 | |
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377 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
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378 | |
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379 | # else |
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380 | |
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381 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
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382 | |
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383 | static ev_tstamp |
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384 | ev_now (void) |
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385 | { |
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386 | extern ev_tstamp ev_rt_now; |
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387 | |
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388 | return ev_rt_now; |
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389 | } |
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390 | # endif |
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391 | |
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392 | void ev_default_destroy (void); /* destroy the default loop */ |
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393 | /* this needs to be called after fork, to duplicate the default loop */ |
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394 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
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395 | /* you can call it in either the parent or the child */ |
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396 | /* you can actually call it at any time, anywhere :) */ |
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397 | void ev_default_fork (void); |
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398 | |
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399 | unsigned int ev_backend (EV_P); |
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400 | unsigned int ev_loop_count (EV_P); |
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401 | #endif |
61 | |
402 | |
62 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
403 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
63 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
404 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
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405 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
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406 | #define EVUNLOOP_ONE 1 /* unloop once */ |
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407 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
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408 | |
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409 | #if EV_PROTOTYPES |
64 | void ev_loop (int flags); |
410 | void ev_loop (EV_P_ int flags); |
65 | extern int ev_loop_done; /* set to 1 to break out of event loop */ |
411 | 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 */ |
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412 | |
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413 | /* |
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414 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
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415 | * keeps one reference. if you have a long-runing watcher you never unregister that |
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416 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
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417 | */ |
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418 | void ev_ref (EV_P); |
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419 | void ev_unref (EV_P); |
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420 | |
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421 | /* convinience function, wait for a single event, without registering an event watcher */ |
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422 | /* if timeout is < 0, do wait indefinitely */ |
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423 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
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424 | #endif |
66 | |
425 | |
67 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
426 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
68 | #define evw_init(ev,cb_,data_) do { (ev)->active = 0; (ev)->cb = (cb_); (ev)->data = (void *)data_; } while (0) |
427 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
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428 | #define ev_init(ev,cb_) do { \ |
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429 | ((ev_watcher *)(void *)(ev))->active = \ |
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430 | ((ev_watcher *)(void *)(ev))->pending = \ |
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431 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
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432 | ev_set_cb ((ev), cb_); \ |
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433 | } while (0) |
69 | |
434 | |
70 | #define evio_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
435 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
71 | #define evtimer_set_rel(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); (ev)->is_abs = 0; } while (0) |
436 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
72 | #define evtimer_set_abs(ev,at_,repeat_) do { (ev)->at = (at_); (ev)->repeat = (repeat_); (ev)->is_abs = 1; } while (0) |
437 | #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
73 | #define evsignal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
438 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
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439 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
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440 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
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441 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
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442 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
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443 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
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444 | #define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) |
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445 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
74 | |
446 | |
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447 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
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448 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
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449 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
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450 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
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451 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
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452 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0) |
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453 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
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454 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
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455 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
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456 | #define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) |
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457 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
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458 | |
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459 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
75 | #define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ |
460 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
76 | |
461 | |
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462 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
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463 | #define ev_cb(ev) (ev)->cb /* rw */ |
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464 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
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465 | |
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466 | #ifndef ev_set_cb |
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467 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
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468 | #endif |
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469 | |
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470 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
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471 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
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472 | #if EV_PROTOTYPES |
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473 | |
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474 | /* feeds an event into a watcher as if the event actually occured */ |
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475 | /* accepts any ev_watcher type */ |
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476 | void ev_feed_event (EV_P_ void *w, int revents); |
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477 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
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478 | void ev_feed_signal_event (EV_P_ int signum); |
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479 | void ev_invoke (EV_P_ void *w, int revents); |
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480 | int ev_clear_pending (EV_P_ void *w); |
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481 | |
77 | void evio_start (struct ev_io *w); |
482 | void ev_io_start (EV_P_ ev_io *w); |
78 | void evio_stop (struct ev_io *w); |
483 | void ev_io_stop (EV_P_ ev_io *w); |
79 | |
484 | |
80 | void evtimer_start (struct ev_timer *w); |
485 | void ev_timer_start (EV_P_ ev_timer *w); |
81 | void evtimer_stop (struct ev_timer *w); |
486 | void ev_timer_stop (EV_P_ ev_timer *w); |
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487 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
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488 | void ev_timer_again (EV_P_ ev_timer *w); |
82 | |
489 | |
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490 | #if EV_PERIODIC_ENABLE |
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491 | void ev_periodic_start (EV_P_ ev_periodic *w); |
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492 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
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493 | void ev_periodic_again (EV_P_ ev_periodic *w); |
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494 | #endif |
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495 | |
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496 | /* only supported in the default loop */ |
83 | void evsignal_start (struct ev_signal *w); |
497 | void ev_signal_start (EV_P_ ev_signal *w); |
84 | void evsignal_stop (struct ev_signal *w); |
498 | void ev_signal_stop (EV_P_ ev_signal *w); |
85 | |
499 | |
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500 | /* only supported in the default loop */ |
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501 | void ev_child_start (EV_P_ ev_child *w); |
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502 | void ev_child_stop (EV_P_ ev_child *w); |
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503 | |
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504 | # if EV_STAT_ENABLE |
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505 | void ev_stat_start (EV_P_ ev_stat *w); |
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506 | void ev_stat_stop (EV_P_ ev_stat *w); |
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507 | void ev_stat_stat (EV_P_ ev_stat *w); |
86 | #endif |
508 | # endif |
87 | |
509 | |
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510 | # if EV_IDLE_ENABLE |
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511 | void ev_idle_start (EV_P_ ev_idle *w); |
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512 | void ev_idle_stop (EV_P_ ev_idle *w); |
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513 | # endif |
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514 | |
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515 | void ev_prepare_start (EV_P_ ev_prepare *w); |
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516 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
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517 | |
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518 | void ev_check_start (EV_P_ ev_check *w); |
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519 | void ev_check_stop (EV_P_ ev_check *w); |
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520 | |
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521 | # if EV_FORK_ENABLE |
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522 | void ev_fork_start (EV_P_ ev_fork *w); |
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523 | void ev_fork_stop (EV_P_ ev_fork *w); |
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524 | # endif |
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525 | |
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526 | # if EV_EMBED_ENABLE |
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527 | /* only supported when loop to be embedded is in fact embeddable */ |
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528 | void ev_embed_start (EV_P_ ev_embed *w); |
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529 | void ev_embed_stop (EV_P_ ev_embed *w); |
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530 | void ev_embed_sweep (EV_P_ ev_embed *w); |
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531 | # endif |
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532 | |
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533 | #endif |
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534 | |
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535 | #ifdef __cplusplus |
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536 | } |
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537 | #endif |
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538 | |
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539 | #endif |
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540 | |