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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_PERIODICS |
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52 | # define EV_PERIODICS 1 |
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53 | #endif |
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54 | |
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55 | /* support multiple event loops? */ |
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56 | #if EV_MULTIPLICITY |
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57 | struct ev_loop; |
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58 | # define EV_P struct ev_loop *loop |
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59 | # define EV_P_ EV_P, |
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60 | # define EV_A loop |
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61 | # define EV_A_ EV_A, |
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62 | # define EV_DEFAULT_A ev_default_loop (0) |
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63 | # define EV_DEFAULT_A_ EV_DEFAULT_A, |
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64 | #else |
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65 | # define EV_P void |
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66 | # define EV_P_ |
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67 | # define EV_A |
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68 | # define EV_A_ |
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69 | # define EV_DEFAULT_A |
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70 | # define EV_DEFAULT_A_ |
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71 | #endif |
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72 | |
6 | /* eventmask, revents, events... */ |
73 | /* eventmask, revents, events... */ |
7 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
74 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
8 | #define EV_NONE 0x00 |
75 | #define EV_NONE 0x00L |
9 | #define EV_READ 0x01 |
76 | #define EV_READ 0x01L /* io only */ |
10 | #define EV_WRITE 0x02 |
77 | #define EV_WRITE 0x02L /* io only */ |
11 | #define EV_TIMEOUT 0x04 |
78 | #define EV_TIMEOUT 0x000100L /* timer only */ |
12 | #define EV_SIGNAL 0x08 |
79 | #define EV_PERIODIC 0x000200L /* periodic timer only */ |
13 | #define EV_IDLE 0x10 |
80 | #define EV_SIGNAL 0x000400L /* signal only */ |
14 | #define EV_CHECK 0x20 |
81 | #define EV_IDLE 0x000800L /* idle only */ |
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82 | #define EV_CHECK 0x001000L /* check only */ |
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83 | #define EV_PREPARE 0x002000L /* prepare only */ |
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84 | #define EV_CHILD 0x004000L /* child/pid only */ |
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85 | #define EV_EMBED 0x008000L /* embedded event loop */ |
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86 | #define EV_ERROR 0x800000L /* sent when an error occurs */ |
15 | |
87 | |
16 | /* can be used to add custom fields to all watchers */ |
88 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
17 | #ifndef EV_COMMON |
89 | #ifndef EV_COMMON |
18 | # define EV_COMMON void *data |
90 | # define EV_COMMON void *data; |
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91 | #endif |
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92 | #ifndef EV_PROTOTYPES |
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93 | # define EV_PROTOTYPES 1 |
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94 | #endif |
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95 | |
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96 | #define EV_VERSION_MAJOR 1 |
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97 | #define EV_VERSION_MINOR 1 |
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98 | |
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99 | #ifndef EV_CB_DECLARE |
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100 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
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101 | #endif |
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102 | #ifndef EV_CB_INVOKE |
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103 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
19 | #endif |
104 | #endif |
20 | |
105 | |
21 | /* |
106 | /* |
22 | * struct member types: |
107 | * struct member types: |
23 | * private: you can look at them, but not change them, and they might not mean anything to you. |
108 | * private: you can look at them, but not change them, and they might not mean anything to you. |
… | |
… | |
27 | |
112 | |
28 | /* shared by all watchers */ |
113 | /* shared by all watchers */ |
29 | #define EV_WATCHER(type) \ |
114 | #define EV_WATCHER(type) \ |
30 | int active; /* private */ \ |
115 | int active; /* private */ \ |
31 | int pending; /* private */ \ |
116 | int pending; /* private */ \ |
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117 | int priority; /* private */ \ |
32 | EV_COMMON; /* rw */ \ |
118 | EV_COMMON /* rw */ \ |
33 | void (*cb)(struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ |
119 | EV_CB_DECLARE (type) /* private */ |
34 | |
120 | |
35 | #define EV_WATCHER_LIST(type) \ |
121 | #define EV_WATCHER_LIST(type) \ |
36 | EV_WATCHER (type); \ |
122 | EV_WATCHER (type) \ |
37 | struct type *next /* private */ |
123 | struct ev_watcher_list *next; /* private */ |
38 | |
124 | |
39 | #define EV_WATCHER_TIME(type) \ |
125 | #define EV_WATCHER_TIME(type) \ |
40 | EV_WATCHER (type); \ |
126 | EV_WATCHER (type) \ |
41 | ev_tstamp at /* private */ |
127 | ev_tstamp at; /* private */ |
42 | |
128 | |
43 | /* base class, nothing to see here unless you subclass */ |
129 | /* base class, nothing to see here unless you subclass */ |
44 | struct ev_watcher { |
130 | typedef struct ev_watcher |
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131 | { |
45 | EV_WATCHER (ev_watcher); |
132 | EV_WATCHER (ev_watcher) |
46 | }; |
133 | } ev_watcher; |
47 | |
134 | |
48 | /* base class, nothing to see here unless you subclass */ |
135 | /* base class, nothing to see here unless you subclass */ |
49 | struct ev_watcher_list { |
136 | typedef struct ev_watcher_list |
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137 | { |
50 | EV_WATCHER_LIST (ev_watcher_list); |
138 | EV_WATCHER_LIST (ev_watcher_list) |
51 | }; |
139 | } ev_watcher_list; |
52 | |
140 | |
53 | /* base class, nothing to see here unless you subclass */ |
141 | /* base class, nothing to see here unless you subclass */ |
54 | struct ev_watcher_time { |
142 | typedef struct ev_watcher_time |
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143 | { |
55 | EV_WATCHER_TIME (ev_watcher_time); |
144 | EV_WATCHER_TIME (ev_watcher_time) |
56 | }; |
145 | } ev_watcher_time; |
57 | |
146 | |
58 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
147 | /* invoked after a specific time, repeatable (based on monotonic clock) */ |
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148 | /* revent EV_TIMEOUT */ |
59 | struct ev_timer |
149 | typedef struct ev_timer |
60 | { |
150 | { |
61 | EV_WATCHER_TIME (ev_timer); |
151 | EV_WATCHER_TIME (ev_timer) |
62 | |
152 | |
63 | ev_tstamp repeat; /* rw */ |
153 | ev_tstamp repeat; /* rw */ |
64 | }; |
154 | } ev_timer; |
65 | |
155 | |
66 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
156 | /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ |
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157 | /* revent EV_PERIODIC */ |
67 | struct ev_periodic |
158 | typedef struct ev_periodic |
68 | { |
159 | { |
69 | EV_WATCHER_TIME (ev_periodic); |
160 | EV_WATCHER_TIME (ev_periodic) |
70 | |
161 | |
71 | ev_tstamp interval; /* rw */ |
162 | ev_tstamp interval; /* rw */ |
72 | }; |
163 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
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164 | } ev_periodic; |
73 | |
165 | |
74 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
166 | /* invoked when fd is either EV_READable or EV_WRITEable */ |
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167 | /* revent EV_READ, EV_WRITE */ |
75 | struct ev_io |
168 | typedef struct ev_io |
76 | { |
169 | { |
77 | EV_WATCHER_LIST (ev_io); |
170 | EV_WATCHER_LIST (ev_io) |
78 | |
171 | |
79 | int fd; /* ro */ |
172 | int fd; /* ro */ |
80 | int events; /* ro */ |
173 | int events; /* ro */ |
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174 | } ev_io; |
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175 | |
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176 | /* invoked when the given signal has been received */ |
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177 | /* revent EV_SIGNAL */ |
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178 | typedef struct ev_signal |
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179 | { |
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180 | EV_WATCHER_LIST (ev_signal) |
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181 | |
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182 | int signum; /* ro */ |
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183 | } ev_signal; |
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184 | |
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185 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
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186 | /* revent EV_IDLE */ |
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187 | typedef struct ev_idle |
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188 | { |
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189 | EV_WATCHER (ev_idle) |
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190 | } ev_idle; |
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191 | |
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192 | /* invoked for each run of the mainloop, just before the blocking call */ |
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193 | /* you can still change events in any way you like */ |
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194 | /* revent EV_PREPARE */ |
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195 | typedef struct ev_prepare |
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196 | { |
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197 | EV_WATCHER (ev_prepare) |
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198 | } ev_prepare; |
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199 | |
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200 | /* invoked for each run of the mainloop, just after the blocking call */ |
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201 | /* revent EV_CHECK */ |
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202 | typedef struct ev_check |
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203 | { |
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204 | EV_WATCHER (ev_check) |
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205 | } ev_check; |
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206 | |
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207 | /* invoked when sigchld is received and waitpid indicates the given pid */ |
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208 | /* revent EV_CHILD */ |
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209 | /* does not support priorities */ |
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210 | typedef struct ev_child |
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211 | { |
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212 | EV_WATCHER_LIST (ev_child) |
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213 | |
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214 | int pid; /* ro */ |
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215 | int rpid; /* rw, holds the received pid */ |
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216 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
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217 | } ev_child; |
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218 | |
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219 | #if EV_MULTIPLICITY |
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220 | /* used to embed an event loop inside another */ |
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221 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
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222 | typedef struct ev_embed |
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223 | { |
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224 | EV_WATCHER (ev_embed) |
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225 | |
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226 | ev_io io; /* private */ |
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227 | struct ev_loop *loop; /* ro */ |
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228 | } ev_embed; |
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229 | #endif |
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230 | |
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231 | /* the presence of this union forces similar struct layout */ |
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232 | union ev_any_watcher |
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233 | { |
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234 | struct ev_watcher w; |
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235 | struct ev_watcher_list wl; |
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236 | |
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237 | struct ev_io io; |
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238 | struct ev_timer timer; |
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239 | struct ev_periodic periodic; |
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240 | struct ev_idle idle; |
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241 | struct ev_prepare prepare; |
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242 | struct ev_check check; |
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243 | struct ev_signal signal; |
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244 | struct ev_child child; |
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245 | #if EV_MULTIPLICITY |
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246 | struct ev_embed embed; |
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247 | #endif |
81 | }; |
248 | }; |
82 | |
249 | |
83 | /* invoked when the given signal has been received */ |
250 | /* bits for ev_default_loop and ev_loop_new */ |
84 | struct ev_signal |
251 | /* the default */ |
85 | { |
252 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
86 | EV_WATCHER_LIST (ev_signal); |
253 | /* flag bits */ |
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254 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
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255 | /* method bits to be ored together */ |
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256 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
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257 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
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258 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
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259 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
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260 | #define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ |
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261 | #define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ |
87 | |
262 | |
88 | int signum; /* ro */ |
263 | #if EV_PROTOTYPES |
89 | }; |
264 | int ev_version_major (void); |
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265 | int ev_version_minor (void); |
90 | |
266 | |
91 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
267 | unsigned int ev_supported_backends (void); |
92 | struct ev_idle |
268 | unsigned int ev_recommended_backends (void); |
93 | { |
269 | unsigned int ev_embeddable_backends (void); |
94 | EV_WATCHER (ev_idle); |
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95 | }; |
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96 | |
270 | |
97 | /* invoked for each run of the mainloop, just before the next blocking vall is initiated */ |
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98 | struct ev_check |
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99 | { |
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100 | EV_WATCHER (ev_check); |
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101 | }; |
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102 | |
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103 | #define EVMETHOD_NONE 0 |
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104 | #define EVMETHOD_SELECT 1 |
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105 | #define EVMETHOD_EPOLL 2 |
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106 | int ev_init (int flags); /* returns ev_method */ |
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107 | extern int ev_method; |
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108 | |
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109 | /* these three calls are suitable for plugging into pthread_atfork */ |
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110 | void ev_prefork (void); |
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111 | void ev_postfork_parent (void); |
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112 | void ev_postfork_child (void); |
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113 | |
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114 | extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */ |
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115 | ev_tstamp ev_time (void); |
271 | ev_tstamp ev_time (void); |
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272 | |
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273 | /* Sets the allocation function to use, works like realloc. |
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274 | * It is used to allocate and free memory. |
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275 | * If it returns zero when memory needs to be allocated, the library might abort |
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276 | * or take some potentially destructive action. |
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277 | * The default is your system realloc function. |
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278 | */ |
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279 | void ev_set_allocator (void *(*cb)(void *ptr, long size)); |
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280 | |
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281 | /* set the callback function to call on a |
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282 | * retryable syscall error |
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283 | * (such as failed select, poll, epoll_wait) |
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284 | */ |
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285 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
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286 | |
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287 | # if EV_MULTIPLICITY |
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288 | /* the default loop is the only one that handles signals and child watchers */ |
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289 | /* you can call this as often as you like */ |
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290 | static struct ev_loop * |
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291 | ev_default_loop (unsigned int flags) |
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292 | { |
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293 | extern struct ev_loop *ev_default_loop_ptr; |
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294 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
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295 | |
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296 | if (!ev_default_loop_ptr) |
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297 | ev_default_loop_init (flags); |
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298 | |
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299 | return ev_default_loop_ptr; |
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300 | } |
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301 | |
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302 | /* create and destroy alternative loops that don't handle signals */ |
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303 | struct ev_loop *ev_loop_new (unsigned int flags); |
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304 | void ev_loop_destroy (EV_P); |
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305 | void ev_loop_fork (EV_P); |
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306 | |
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307 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
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308 | |
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309 | # else |
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310 | |
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311 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
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312 | |
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313 | static ev_tstamp |
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314 | ev_now (void) |
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315 | { |
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316 | extern ev_tstamp ev_rt_now; |
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317 | |
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318 | return ev_rt_now; |
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319 | } |
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320 | # endif |
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321 | |
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322 | void ev_default_destroy (void); /* destroy the default loop */ |
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323 | /* this needs to be called after fork, to duplicate the default loop */ |
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324 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
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325 | /* you can call it in either the parent or the child */ |
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326 | /* you can actually call it at any time, anywhere :) */ |
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327 | void ev_default_fork (void); |
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328 | |
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329 | unsigned int ev_backend (EV_P); |
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330 | #endif |
116 | |
331 | |
117 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
332 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
118 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
333 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
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334 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
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335 | #define EVUNLOOP_ONE 1 /* unloop once */ |
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336 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
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337 | |
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338 | #if EV_PROTOTYPES |
119 | void ev_loop (int flags); |
339 | void ev_loop (EV_P_ int flags); |
120 | extern int ev_loop_done; /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
340 | 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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341 | |
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342 | /* |
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343 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
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344 | * keeps one reference. if you have a long-runing watcher you never unregister that |
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345 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
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346 | */ |
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347 | void ev_ref (EV_P); |
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348 | void ev_unref (EV_P); |
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349 | |
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350 | /* convinience function, wait for a single event, without registering an event watcher */ |
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351 | /* if timeout is < 0, do wait indefinitely */ |
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352 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
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353 | #endif |
121 | |
354 | |
122 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
355 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
123 | /* either use evw_init + evXXX_set, or the evXXX_init macro, below, to first initialise a watcher */ |
356 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
124 | #define evw_init(ev,cb_) do { (ev)->active = 0; (ev)->cb = (cb_); } while (0) |
357 | #define ev_init(ev,cb_) do { \ |
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358 | ((ev_watcher *)(void *)(ev))->active = \ |
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359 | ((ev_watcher *)(void *)(ev))->pending = \ |
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360 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
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361 | ev_set_cb ((ev), cb_); \ |
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362 | } while (0) |
125 | |
363 | |
126 | #define evio_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
364 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
127 | #define evtimer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
365 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
128 | #define evperiodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) |
366 | #define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
129 | #define evsignal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
367 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
130 | #define evcheck_set(ev) /* nop, yes this is a serious in-joke */ |
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131 | #define evidle_set(ev) /* nop, yes this is a serious in-joke */ |
368 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
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369 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
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370 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
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371 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
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372 | #define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) |
132 | |
373 | |
133 | #define evio_init(ev,cb,fd,events) do { evw_init ((ev), (cb)); evio_set ((ev),(fd),(events)); } while (0) |
374 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
134 | #define evtimer_init(ev,cb,after,repeat) do { evw_init ((ev), (cb)); evtimer_set ((ev),(after),(repeat)); } while (0) |
375 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
135 | #define evperiodic_init(ev,cb,at,interval) do { evw_init ((ev), (cb)); evperiodic_set ((ev),(at),(interval)); } while (0) |
376 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
136 | #define evsignal_init(ev,cb,signum) do { evw_init ((ev), (cb)); evsignal_set ((ev), (signum)); } while (0) |
377 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
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378 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
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379 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
137 | #define evcheck_init(ev,cb) do { evw_init ((ev), (cb)); evcheck_set ((ev)); } while (0) |
380 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
138 | #define evidle_init(ev,cb) do { evw_init ((ev), (cb)); evidle_set ((ev)); } while (0) |
381 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
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382 | #define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) |
139 | |
383 | |
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384 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
140 | #define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ |
385 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
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386 | |
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387 | #define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */ |
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388 | #define ev_cb(ev) (ev)->cb /* rw */ |
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389 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
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390 | |
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391 | #ifndef ev_set_cb |
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392 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
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393 | #endif |
141 | |
394 | |
142 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
395 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
143 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
396 | /* stopping (disabling, deleting) a watcher does nothing unless its already running */ |
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397 | #if EV_PROTOTYPES |
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398 | |
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399 | /* feeds an event into a watcher as if the event actually occured */ |
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400 | /* accepts any ev_watcher type */ |
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401 | void ev_feed_event (EV_P_ void *w, int revents); |
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402 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
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403 | void ev_feed_signal_event (EV_P_ int signum); |
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404 | |
144 | void evio_start (struct ev_io *w); |
405 | void ev_io_start (EV_P_ ev_io *w); |
145 | void evio_stop (struct ev_io *w); |
406 | void ev_io_stop (EV_P_ ev_io *w); |
146 | |
407 | |
147 | void evtimer_start (struct ev_timer *w); |
408 | void ev_timer_start (EV_P_ ev_timer *w); |
148 | void evtimer_stop (struct ev_timer *w); |
409 | void ev_timer_stop (EV_P_ ev_timer *w); |
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410 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
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411 | void ev_timer_again (EV_P_ ev_timer *w); |
149 | |
412 | |
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413 | #if EV_PERIODICS |
150 | void evperiodic_start (struct ev_periodic *w); |
414 | void ev_periodic_start (EV_P_ ev_periodic *w); |
151 | void evperiodic_stop (struct ev_periodic *w); |
415 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
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416 | void ev_periodic_again (EV_P_ ev_periodic *w); |
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417 | #endif |
152 | |
418 | |
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419 | void ev_idle_start (EV_P_ ev_idle *w); |
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420 | void ev_idle_stop (EV_P_ ev_idle *w); |
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421 | |
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422 | void ev_prepare_start (EV_P_ ev_prepare *w); |
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423 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
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424 | |
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425 | void ev_check_start (EV_P_ ev_check *w); |
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426 | void ev_check_stop (EV_P_ ev_check *w); |
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427 | |
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428 | /* only supported in the default loop */ |
153 | void evsignal_start (struct ev_signal *w); |
429 | void ev_signal_start (EV_P_ ev_signal *w); |
154 | void evsignal_stop (struct ev_signal *w); |
430 | void ev_signal_stop (EV_P_ ev_signal *w); |
155 | |
431 | |
156 | void evidle_start (struct ev_idle *w); |
432 | /* only supported in the default loop */ |
157 | void evidle_stop (struct ev_idle *w); |
433 | void ev_child_start (EV_P_ ev_child *w); |
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434 | void ev_child_stop (EV_P_ ev_child *w); |
158 | |
435 | |
159 | void evcheck_start (struct ev_check *w); |
436 | # if EV_MULTIPLICITY |
160 | void evcheck_stop (struct ev_check *w); |
437 | /* only supported when loop to be embedded is in fact embeddable */ |
161 | |
438 | void ev_embed_start (EV_P_ ev_embed *w); |
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439 | void ev_embed_stop (EV_P_ ev_embed *w); |
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440 | void ev_embed_sweep (EV_P_ ev_embed *w); |
162 | #endif |
441 | # endif |
163 | |
442 | |
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443 | #endif |
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444 | |
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445 | #ifdef __cplusplus |
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446 | } |
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447 | #endif |
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448 | |
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449 | #endif |
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450 | |