1 | /* |
1 | /* |
2 | * libev native API header |
2 | * libev native API header |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifndef EV_H__ |
40 | #ifndef EV_H_ |
41 | #define EV_H__ |
41 | #define EV_H_ |
42 | |
42 | |
43 | #ifdef __cplusplus |
43 | #ifdef __cplusplus |
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44 | # define EV_CPP(x) x |
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45 | #else |
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46 | # define EV_CPP(x) |
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47 | #endif |
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48 | |
44 | extern "C" { |
49 | EV_CPP(extern "C" {) |
45 | #endif |
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46 | |
50 | |
47 | typedef double ev_tstamp; |
51 | /*****************************************************************************/ |
48 | |
52 | |
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53 | /* pre-4.0 compatibility */ |
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54 | #ifndef EV_COMPAT3 |
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55 | # define EV_COMPAT3 1 |
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56 | #endif |
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57 | |
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58 | #ifndef EV_FEATURES |
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59 | # define EV_FEATURES 0x7f |
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60 | #endif |
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61 | |
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62 | #define EV_FEATURE_CODE ((EV_FEATURES) & 1) |
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63 | #define EV_FEATURE_DATA ((EV_FEATURES) & 2) |
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64 | #define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) |
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65 | #define EV_FEATURE_API ((EV_FEATURES) & 8) |
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66 | #define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16) |
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67 | #define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32) |
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68 | #define EV_FEATURE_OS ((EV_FEATURES) & 64) |
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69 | |
49 | /* these priorities are inclusive, higher priorities will be called earlier */ |
70 | /* these priorities are inclusive, higher priorities will be invoked earlier */ |
50 | #ifndef EV_MINPRI |
71 | #ifndef EV_MINPRI |
51 | # define EV_MINPRI -2 |
72 | # define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0) |
52 | #endif |
73 | #endif |
53 | #ifndef EV_MAXPRI |
74 | #ifndef EV_MAXPRI |
54 | # define EV_MAXPRI +2 |
75 | # define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0) |
55 | #endif |
76 | #endif |
56 | |
77 | |
57 | #ifndef EV_MULTIPLICITY |
78 | #ifndef EV_MULTIPLICITY |
58 | # define EV_MULTIPLICITY 1 |
79 | # define EV_MULTIPLICITY EV_FEATURE_CONFIG |
59 | #endif |
80 | #endif |
60 | |
81 | |
61 | #ifndef EV_PERIODIC_ENABLE |
82 | #ifndef EV_PERIODIC_ENABLE |
62 | # define EV_PERIODIC_ENABLE 1 |
83 | # define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS |
63 | #endif |
84 | #endif |
64 | |
85 | |
65 | #ifndef EV_STAT_ENABLE |
86 | #ifndef EV_STAT_ENABLE |
66 | # define EV_STAT_ENABLE 1 |
87 | # define EV_STAT_ENABLE EV_FEATURE_WATCHERS |
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88 | #endif |
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89 | |
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90 | #ifndef EV_PREPARE_ENABLE |
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91 | # define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS |
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92 | #endif |
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93 | |
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94 | #ifndef EV_CHECK_ENABLE |
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95 | # define EV_CHECK_ENABLE EV_FEATURE_WATCHERS |
67 | #endif |
96 | #endif |
68 | |
97 | |
69 | #ifndef EV_IDLE_ENABLE |
98 | #ifndef EV_IDLE_ENABLE |
70 | # define EV_IDLE_ENABLE 1 |
99 | # define EV_IDLE_ENABLE EV_FEATURE_WATCHERS |
71 | #endif |
100 | #endif |
72 | |
101 | |
73 | #ifndef EV_FORK_ENABLE |
102 | #ifndef EV_FORK_ENABLE |
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103 | # define EV_FORK_ENABLE EV_FEATURE_WATCHERS |
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104 | #endif |
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105 | |
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106 | #ifndef EV_SIGNAL_ENABLE |
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107 | # define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS |
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108 | #endif |
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109 | |
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110 | #ifndef EV_CHILD_ENABLE |
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111 | # ifdef _WIN32 |
74 | # define EV_FORK_ENABLE 1 |
112 | # define EV_CHILD_ENABLE 0 |
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113 | # else |
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114 | # define EV_CHILD_ENABLE EV_FEATURE_WATCHERS |
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115 | #endif |
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116 | #endif |
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117 | |
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118 | #ifndef EV_ASYNC_ENABLE |
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119 | # define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS |
75 | #endif |
120 | #endif |
76 | |
121 | |
77 | #ifndef EV_EMBED_ENABLE |
122 | #ifndef EV_EMBED_ENABLE |
78 | # define EV_EMBED_ENABLE 1 |
123 | # define EV_EMBED_ENABLE EV_FEATURE_WATCHERS |
79 | #endif |
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80 | |
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81 | #ifndef EV_ASYNC_ENABLE |
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82 | # define EV_ASYNC_ENABLE 1 |
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83 | #endif |
124 | #endif |
84 | |
125 | |
85 | #ifndef EV_WALK_ENABLE |
126 | #ifndef EV_WALK_ENABLE |
86 | # define EV_WALK_ENABLE 0 /* not yet */ |
127 | # define EV_WALK_ENABLE 0 /* not yet */ |
87 | #endif |
128 | #endif |
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129 | |
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130 | /*****************************************************************************/ |
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131 | |
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132 | #if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE |
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133 | # undef EV_SIGNAL_ENABLE |
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134 | # define EV_SIGNAL_ENABLE 1 |
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135 | #endif |
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136 | |
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137 | /*****************************************************************************/ |
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138 | |
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139 | typedef double ev_tstamp; |
88 | |
140 | |
89 | #ifndef EV_ATOMIC_T |
141 | #ifndef EV_ATOMIC_T |
90 | # include <signal.h> |
142 | # include <signal.h> |
91 | # define EV_ATOMIC_T sig_atomic_t volatile |
143 | # define EV_ATOMIC_T sig_atomic_t volatile |
92 | #endif |
144 | #endif |
93 | |
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94 | /*****************************************************************************/ |
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95 | |
145 | |
96 | #if EV_STAT_ENABLE |
146 | #if EV_STAT_ENABLE |
97 | # ifdef _WIN32 |
147 | # ifdef _WIN32 |
98 | # include <time.h> |
148 | # include <time.h> |
99 | # include <sys/types.h> |
149 | # include <sys/types.h> |
… | |
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102 | #endif |
152 | #endif |
103 | |
153 | |
104 | /* support multiple event loops? */ |
154 | /* support multiple event loops? */ |
105 | #if EV_MULTIPLICITY |
155 | #if EV_MULTIPLICITY |
106 | struct ev_loop; |
156 | struct ev_loop; |
107 | # define EV_P struct ev_loop *loop |
157 | # define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ |
108 | # define EV_P_ EV_P, |
158 | # define EV_P_ EV_P, /* a loop as first of multiple parameters */ |
109 | # define EV_A loop |
159 | # define EV_A loop /* a loop as sole argument to a function call */ |
110 | # define EV_A_ EV_A, |
160 | # define EV_A_ EV_A, /* a loop as first of multiple arguments */ |
111 | # define EV_DEFAULT_UC ev_default_loop_uc () |
161 | # define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */ |
112 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, |
162 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ |
113 | # define EV_DEFAULT ev_default_loop (0) |
163 | # define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ |
114 | # define EV_DEFAULT_ EV_DEFAULT, |
164 | # define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ |
115 | #else |
165 | #else |
116 | # define EV_P void |
166 | # define EV_P void |
117 | # define EV_P_ |
167 | # define EV_P_ |
118 | # define EV_A |
168 | # define EV_A |
119 | # define EV_A_ |
169 | # define EV_A_ |
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122 | # define EV_DEFAULT_UC |
172 | # define EV_DEFAULT_UC |
123 | # define EV_DEFAULT_UC_ |
173 | # define EV_DEFAULT_UC_ |
124 | # undef EV_EMBED_ENABLE |
174 | # undef EV_EMBED_ENABLE |
125 | #endif |
175 | #endif |
126 | |
176 | |
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177 | /* EV_INLINE is used for functions in header files */ |
127 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
178 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
128 | # define EV_INLINE static inline |
179 | # define EV_INLINE static inline |
129 | #else |
180 | #else |
130 | # define EV_INLINE static |
181 | # define EV_INLINE static |
131 | #endif |
182 | #endif |
132 | |
183 | |
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184 | /* EV_PROTOTYPES can be sued to switch of prototype declarations */ |
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185 | #ifndef EV_PROTOTYPES |
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186 | # define EV_PROTOTYPES 1 |
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187 | #endif |
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188 | |
133 | /*****************************************************************************/ |
189 | /*****************************************************************************/ |
134 | |
190 | |
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191 | #define EV_VERSION_MAJOR 4 |
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192 | #define EV_VERSION_MINOR 0 |
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193 | |
135 | /* eventmask, revents, events... */ |
194 | /* eventmask, revents, events... */ |
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195 | enum { |
136 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
196 | EV_UNDEF = -1, /* guaranteed to be invalid */ |
137 | #define EV_NONE 0x00 /* no events */ |
197 | EV_NONE = 0x00, /* no events */ |
138 | #define EV_READ 0x01 /* ev_io detected read will not block */ |
198 | EV_READ = 0x01, /* ev_io detected read will not block */ |
139 | #define EV_WRITE 0x02 /* ev_io detected write will not block */ |
199 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
140 | #define EV__IOFDSET 0x80 /* internal use only */ |
200 | EV__IOFDSET = 0x80, /* internal use only */ |
141 | #define EV_IO EV_READ /* alias for type-detection */ |
201 | EV_IO = EV_READ, /* alias for type-detection */ |
142 | #define EV_TIMEOUT 0x00000100 /* timer timed out */ |
202 | EV_TIMER = 0x00000100, /* timer timed out */ |
143 | #define EV_TIMER EV_TIMEOUT /* alias for type-detection */ |
203 | #if EV_COMPAT3 |
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204 | EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ |
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205 | #endif |
144 | #define EV_PERIODIC 0x00000200 /* periodic timer timed out */ |
206 | EV_PERIODIC = 0x00000200, /* periodic timer timed out */ |
145 | #define EV_SIGNAL 0x00000400 /* signal was received */ |
207 | EV_SIGNAL = 0x00000400, /* signal was received */ |
146 | #define EV_CHILD 0x00000800 /* child/pid had status change */ |
208 | EV_CHILD = 0x00000800, /* child/pid had status change */ |
147 | #define EV_STAT 0x00001000 /* stat data changed */ |
209 | EV_STAT = 0x00001000, /* stat data changed */ |
148 | #define EV_IDLE 0x00002000 /* event loop is idling */ |
210 | EV_IDLE = 0x00002000, /* event loop is idling */ |
149 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
211 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
150 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
212 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
151 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
213 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
152 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
214 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
153 | #define EV_ASYNC 0x00040000 /* async intra-loop signal */ |
215 | EV_ASYNC = 0x00040000, /* async intra-loop signal */ |
154 | #define EV_CUSTOM 0x01000000 /* for use by user code */ |
216 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
155 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
217 | EV_ERROR = 0x80000000 /* sent when an error occurs */ |
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218 | }; |
156 | |
219 | |
157 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
220 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
158 | #ifndef EV_COMMON |
221 | #ifndef EV_COMMON |
159 | # define EV_COMMON void *data; |
222 | # define EV_COMMON void *data; |
160 | #endif |
223 | #endif |
161 | #ifndef EV_PROTOTYPES |
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162 | # define EV_PROTOTYPES 1 |
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163 | #endif |
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164 | |
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165 | #define EV_VERSION_MAJOR 3 |
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166 | #define EV_VERSION_MINOR 0 |
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167 | |
224 | |
168 | #ifndef EV_CB_DECLARE |
225 | #ifndef EV_CB_DECLARE |
169 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
226 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
170 | #endif |
227 | #endif |
171 | #ifndef EV_CB_INVOKE |
228 | #ifndef EV_CB_INVOKE |
172 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
229 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
173 | #endif |
230 | #endif |
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231 | |
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232 | /* not official, do not use */ |
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233 | #define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents) |
174 | |
234 | |
175 | /* |
235 | /* |
176 | * struct member types: |
236 | * struct member types: |
177 | * private: you may look at them, but not change them, |
237 | * private: you may look at them, but not change them, |
178 | * and they might not mean anything to you. |
238 | * and they might not mean anything to you. |
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187 | * or simply 1 for watchers that aren't in some array. |
247 | * or simply 1 for watchers that aren't in some array. |
188 | * pending is either 0, in which case the watcher isn't, |
248 | * pending is either 0, in which case the watcher isn't, |
189 | * or the array index + 1 in the pendings array. |
249 | * or the array index + 1 in the pendings array. |
190 | */ |
250 | */ |
191 | |
251 | |
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252 | #if EV_MINPRI == EV_MAXPRI |
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253 | # define EV_DECL_PRIORITY |
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254 | #elif !defined (EV_DECL_PRIORITY) |
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255 | # define EV_DECL_PRIORITY int priority; |
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256 | #endif |
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257 | |
192 | /* shared by all watchers */ |
258 | /* shared by all watchers */ |
193 | #define EV_WATCHER(type) \ |
259 | #define EV_WATCHER(type) \ |
194 | int active; /* private */ \ |
260 | int active; /* private */ \ |
195 | int pending; /* private */ \ |
261 | int pending; /* private */ \ |
196 | int priority; /* private */ \ |
262 | EV_DECL_PRIORITY /* private */ \ |
197 | EV_COMMON /* rw */ \ |
263 | EV_COMMON /* rw */ \ |
198 | EV_CB_DECLARE (type) /* private */ |
264 | EV_CB_DECLARE (type) /* private */ |
199 | |
265 | |
200 | #define EV_WATCHER_LIST(type) \ |
266 | #define EV_WATCHER_LIST(type) \ |
201 | EV_WATCHER (type) \ |
267 | EV_WATCHER (type) \ |
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357 | EV_WATCHER (ev_async) |
423 | EV_WATCHER (ev_async) |
358 | |
424 | |
359 | EV_ATOMIC_T sent; /* private */ |
425 | EV_ATOMIC_T sent; /* private */ |
360 | } ev_async; |
426 | } ev_async; |
361 | |
427 | |
362 | # define ev_async_pending(w) ((w)->sent + 0) |
428 | # define ev_async_pending(w) (+(w)->sent) |
363 | #endif |
429 | #endif |
364 | |
430 | |
365 | /* the presence of this union forces similar struct layout */ |
431 | /* the presence of this union forces similar struct layout */ |
366 | union ev_any_watcher |
432 | union ev_any_watcher |
367 | { |
433 | { |
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390 | #if EV_ASYNC_ENABLE |
456 | #if EV_ASYNC_ENABLE |
391 | struct ev_async async; |
457 | struct ev_async async; |
392 | #endif |
458 | #endif |
393 | }; |
459 | }; |
394 | |
460 | |
395 | /* bits for ev_default_loop and ev_loop_new */ |
461 | /* flag bits for ev_default_loop and ev_loop_new */ |
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462 | enum { |
396 | /* the default */ |
463 | /* the default */ |
397 | #define EVFLAG_AUTO 0x00000000U /* not quite a mask */ |
464 | EVFLAG_AUTO = 0x00000000U, /* not quite a mask */ |
398 | /* flag bits */ |
465 | /* flag bits */ |
399 | #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ |
466 | EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */ |
400 | #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ |
467 | EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */ |
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468 | /* debugging/feature disable */ |
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469 | EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ |
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470 | #if EV_COMPAT3 |
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471 | EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ |
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472 | #endif |
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473 | EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */ |
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474 | }; |
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475 | |
401 | /* method bits to be ored together */ |
476 | /* method bits to be ored together */ |
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477 | enum { |
402 | #define EVBACKEND_SELECT 0x00000001U /* about anywhere */ |
478 | EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ |
403 | #define EVBACKEND_POLL 0x00000002U /* !win */ |
479 | EVBACKEND_POLL = 0x00000002U, /* !win */ |
404 | #define EVBACKEND_EPOLL 0x00000004U /* linux */ |
480 | EVBACKEND_EPOLL = 0x00000004U, /* linux */ |
405 | #define EVBACKEND_KQUEUE 0x00000008U /* bsd */ |
481 | EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ |
406 | #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ |
482 | EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ |
407 | #define EVBACKEND_PORT 0x00000020U /* solaris 10 */ |
483 | EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ |
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484 | EVBACKEND_ALL = 0x0000003FU |
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485 | }; |
408 | |
486 | |
409 | #if EV_PROTOTYPES |
487 | #if EV_PROTOTYPES |
410 | int ev_version_major (void); |
488 | int ev_version_major (void); |
411 | int ev_version_minor (void); |
489 | int ev_version_minor (void); |
412 | |
490 | |
… | |
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430 | * (such as failed select, poll, epoll_wait) |
508 | * (such as failed select, poll, epoll_wait) |
431 | */ |
509 | */ |
432 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
510 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
433 | |
511 | |
434 | #if EV_MULTIPLICITY |
512 | #if EV_MULTIPLICITY |
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513 | |
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514 | /* the default loop is the only one that handles signals and child watchers */ |
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515 | /* you can call this as often as you like */ |
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516 | struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)); |
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517 | |
435 | EV_INLINE struct ev_loop * |
518 | EV_INLINE struct ev_loop * |
436 | ev_default_loop_uc (void) |
519 | ev_default_loop_uc_ (void) |
437 | { |
520 | { |
438 | extern struct ev_loop *ev_default_loop_ptr; |
521 | extern struct ev_loop *ev_default_loop_ptr; |
439 | |
522 | |
440 | return ev_default_loop_ptr; |
523 | return ev_default_loop_ptr; |
441 | } |
524 | } |
442 | |
525 | |
443 | /* the default loop is the only one that handles signals and child watchers */ |
526 | EV_INLINE int |
444 | /* you can call this as often as you like */ |
527 | ev_is_default_loop (EV_P) |
445 | EV_INLINE struct ev_loop * |
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446 | ev_default_loop (unsigned int flags) |
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447 | { |
528 | { |
448 | struct ev_loop *loop = ev_default_loop_uc (); |
529 | return EV_A == EV_DEFAULT_UC; |
449 | |
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450 | if (!loop) |
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451 | { |
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452 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
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453 | |
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454 | loop = ev_default_loop_init (flags); |
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455 | } |
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456 | |
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457 | return loop; |
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458 | } |
530 | } |
459 | |
531 | |
460 | /* create and destroy alternative loops that don't handle signals */ |
532 | /* create and destroy alternative loops that don't handle signals */ |
461 | struct ev_loop *ev_loop_new (unsigned int flags); |
533 | struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)); |
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534 | /* destroy event loops, also works for the default loop */ |
462 | void ev_loop_destroy (EV_P); |
535 | void ev_loop_destroy (EV_P); |
463 | void ev_loop_fork (EV_P); |
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464 | |
536 | |
465 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
537 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
466 | void ev_now_update (EV_P); |
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467 | |
538 | |
468 | #else |
539 | #else |
469 | |
540 | |
470 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
541 | int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */ |
471 | |
542 | |
472 | EV_INLINE ev_tstamp |
543 | EV_INLINE ev_tstamp |
473 | ev_now (void) |
544 | ev_now (void) |
474 | { |
545 | { |
475 | extern ev_tstamp ev_rt_now; |
546 | extern ev_tstamp ev_rt_now; |
476 | |
547 | |
477 | return ev_rt_now; |
548 | return ev_rt_now; |
478 | } |
549 | } |
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550 | |
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551 | /* looks weird, but ev_is_default_loop (EV_A) still works if this exists */ |
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552 | EV_INLINE int |
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553 | ev_is_default_loop (void) |
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554 | { |
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555 | return 1; |
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556 | } |
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557 | |
479 | #endif /* multiplicity */ |
558 | #endif /* multiplicity */ |
480 | |
559 | |
481 | EV_INLINE int |
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482 | ev_is_default_loop (EV_P) |
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483 | { |
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484 | #if EV_MULTIPLICITY |
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485 | extern struct ev_loop *ev_default_loop_ptr; |
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486 | |
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487 | return !!(EV_A == ev_default_loop_ptr); |
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488 | #else |
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489 | return 1; |
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|
490 | #endif |
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|
491 | } |
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492 | |
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493 | void ev_default_destroy (void); /* destroy the default loop */ |
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494 | /* this needs to be called after fork, to duplicate the default loop */ |
560 | /* this needs to be called after fork, to duplicate the loop */ |
495 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
561 | /* when you want to re-use it in the child */ |
496 | /* you can call it in either the parent or the child */ |
562 | /* you can call it in either the parent or the child */ |
497 | /* you can actually call it at any time, anywhere :) */ |
563 | /* you can actually call it at any time, anywhere :) */ |
498 | void ev_default_fork (void); |
564 | void ev_loop_fork (EV_P); |
499 | |
565 | |
500 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
566 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
501 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
567 | |
502 | unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
568 | void ev_now_update (EV_P); /* update event loop time */ |
503 | void ev_loop_verify (EV_P); /* abort if loop data corrupted */ |
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504 | |
569 | |
505 | #if EV_WALK_ENABLE |
570 | #if EV_WALK_ENABLE |
506 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
571 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
507 | /* callback on every such watcher. The callback might stop the watcher, */ |
572 | /* callback on every such watcher. The callback might stop the watcher, */ |
508 | /* but do nothing else with the loop */ |
573 | /* but do nothing else with the loop */ |
509 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
574 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
510 | #endif |
575 | #endif |
511 | |
576 | |
512 | #endif /* prototypes */ |
577 | #endif /* prototypes */ |
513 | |
578 | |
514 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
579 | /* ev_run flags values */ |
515 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
580 | enum { |
516 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
581 | EVRUN_NOWAIT = 1, /* do not block/wait */ |
517 | #define EVUNLOOP_ONE 1 /* unloop once */ |
582 | EVRUN_ONCE = 2 /* block *once* only */ |
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583 | }; |
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584 | |
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585 | /* ev_break how values */ |
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586 | enum { |
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587 | EVBREAK_CANCEL = 0, /* undo unloop */ |
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588 | EVBREAK_ONE = 1, /* unloop once */ |
518 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
589 | EVBREAK_ALL = 2 /* unloop all loops */ |
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590 | }; |
519 | |
591 | |
520 | #if EV_PROTOTYPES |
592 | #if EV_PROTOTYPES |
521 | void ev_loop (EV_P_ int flags); |
593 | void ev_run (EV_P_ int flags EV_CPP (= 0)); |
522 | 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 */ |
594 | void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */ |
523 | |
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524 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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525 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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526 | |
595 | |
527 | /* |
596 | /* |
528 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
597 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
529 | * keeps one reference. if you have a long-runing watcher you never unregister that |
598 | * keeps one reference. if you have a long-running watcher you never unregister that |
530 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
599 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
531 | */ |
600 | */ |
532 | void ev_ref (EV_P); |
601 | void ev_ref (EV_P); |
533 | void ev_unref (EV_P); |
602 | void ev_unref (EV_P); |
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603 | |
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604 | /* |
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605 | * convenience function, wait for a single event, without registering an event watcher |
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606 | * if timeout is < 0, do wait indefinitely |
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607 | */ |
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608 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
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609 | |
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610 | # if EV_FEATURE_API |
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611 | unsigned int ev_iteration (EV_P); /* number of loop iterations */ |
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612 | unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
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613 | void ev_verify (EV_P); /* abort if loop data corrupted */ |
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614 | |
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615 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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616 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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617 | |
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618 | /* advanced stuff for threading etc. support, see docs */ |
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619 | void ev_set_userdata (EV_P_ void *data); |
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620 | void *ev_userdata (EV_P); |
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621 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); |
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622 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); |
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623 | |
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624 | unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ |
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625 | void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
534 | |
626 | |
535 | /* |
627 | /* |
536 | * stop/start the timer handling. |
628 | * stop/start the timer handling. |
537 | */ |
629 | */ |
538 | void ev_suspend (EV_P); |
630 | void ev_suspend (EV_P); |
539 | void ev_resume (EV_P); |
631 | void ev_resume (EV_P); |
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632 | #endif |
540 | |
633 | |
541 | /* |
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542 | * convenience function, wait for a single event, without registering an event watcher |
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|
543 | * if timeout is < 0, do wait indefinitely |
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544 | */ |
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545 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
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546 | #endif |
634 | #endif |
547 | |
635 | |
548 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
636 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
549 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
637 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
550 | #define ev_init(ev,cb_) do { \ |
638 | #define ev_init(ev,cb_) do { \ |
551 | ((ev_watcher *)(void *)(ev))->active = \ |
639 | ((ev_watcher *)(void *)(ev))->active = \ |
552 | ((ev_watcher *)(void *)(ev))->pending = \ |
640 | ((ev_watcher *)(void *)(ev))->pending = 0; \ |
553 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
641 | ev_set_priority ((ev), 0); \ |
554 | ev_set_cb ((ev), cb_); \ |
642 | ev_set_cb ((ev), cb_); \ |
555 | } while (0) |
643 | } while (0) |
556 | |
644 | |
557 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
645 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
558 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
646 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
… | |
… | |
563 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
651 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
564 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
652 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
565 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
653 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
566 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
654 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
567 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
655 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
568 | #define ev_async_set(ev) do { (ev)->sent = 0; } while (0) |
656 | #define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
569 | |
657 | |
570 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
658 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
571 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
659 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
572 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
660 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
573 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
661 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
… | |
… | |
581 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
669 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
582 | |
670 | |
583 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
671 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
584 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
672 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
585 | |
673 | |
586 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
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587 | #define ev_cb(ev) (ev)->cb /* rw */ |
674 | #define ev_cb(ev) (ev)->cb /* rw */ |
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675 | |
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676 | #if EV_MINPRI == EV_MAXPRI |
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677 | # define ev_priority(ev) ((ev), EV_MINPRI) |
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678 | # define ev_set_priority(ev,pri) ((ev), (pri)) |
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679 | #else |
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680 | # define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority)) |
588 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
681 | # define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) |
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|
682 | #endif |
589 | |
683 | |
590 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
684 | #define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at) |
591 | |
685 | |
592 | #ifndef ev_set_cb |
686 | #ifndef ev_set_cb |
593 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
687 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
594 | #endif |
688 | #endif |
595 | |
689 | |
… | |
… | |
599 | |
693 | |
600 | /* feeds an event into a watcher as if the event actually occured */ |
694 | /* feeds an event into a watcher as if the event actually occured */ |
601 | /* accepts any ev_watcher type */ |
695 | /* accepts any ev_watcher type */ |
602 | void ev_feed_event (EV_P_ void *w, int revents); |
696 | void ev_feed_event (EV_P_ void *w, int revents); |
603 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
697 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
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|
698 | #if EV_SIGNAL_ENABLE |
604 | void ev_feed_signal_event (EV_P_ int signum); |
699 | void ev_feed_signal_event (EV_P_ int signum); |
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|
700 | #endif |
605 | void ev_invoke (EV_P_ void *w, int revents); |
701 | void ev_invoke (EV_P_ void *w, int revents); |
606 | int ev_clear_pending (EV_P_ void *w); |
702 | int ev_clear_pending (EV_P_ void *w); |
607 | |
703 | |
608 | void ev_io_start (EV_P_ ev_io *w); |
704 | void ev_io_start (EV_P_ ev_io *w); |
609 | void ev_io_stop (EV_P_ ev_io *w); |
705 | void ev_io_stop (EV_P_ ev_io *w); |
610 | |
706 | |
611 | void ev_timer_start (EV_P_ ev_timer *w); |
707 | void ev_timer_start (EV_P_ ev_timer *w); |
612 | void ev_timer_stop (EV_P_ ev_timer *w); |
708 | void ev_timer_stop (EV_P_ ev_timer *w); |
613 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
709 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
614 | void ev_timer_again (EV_P_ ev_timer *w); |
710 | void ev_timer_again (EV_P_ ev_timer *w); |
|
|
711 | /* return remaining time */ |
|
|
712 | ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); |
615 | |
713 | |
616 | #if EV_PERIODIC_ENABLE |
714 | #if EV_PERIODIC_ENABLE |
617 | void ev_periodic_start (EV_P_ ev_periodic *w); |
715 | void ev_periodic_start (EV_P_ ev_periodic *w); |
618 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
716 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
619 | void ev_periodic_again (EV_P_ ev_periodic *w); |
717 | void ev_periodic_again (EV_P_ ev_periodic *w); |
620 | #endif |
718 | #endif |
621 | |
719 | |
622 | /* only supported in the default loop */ |
720 | /* only supported in the default loop */ |
|
|
721 | #if EV_SIGNAL_ENABLE |
623 | void ev_signal_start (EV_P_ ev_signal *w); |
722 | void ev_signal_start (EV_P_ ev_signal *w); |
624 | void ev_signal_stop (EV_P_ ev_signal *w); |
723 | void ev_signal_stop (EV_P_ ev_signal *w); |
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|
724 | #endif |
625 | |
725 | |
626 | /* only supported in the default loop */ |
726 | /* only supported in the default loop */ |
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|
727 | # if EV_CHILD_ENABLE |
627 | void ev_child_start (EV_P_ ev_child *w); |
728 | void ev_child_start (EV_P_ ev_child *w); |
628 | void ev_child_stop (EV_P_ ev_child *w); |
729 | void ev_child_stop (EV_P_ ev_child *w); |
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|
730 | # endif |
629 | |
731 | |
630 | # if EV_STAT_ENABLE |
732 | # if EV_STAT_ENABLE |
631 | void ev_stat_start (EV_P_ ev_stat *w); |
733 | void ev_stat_start (EV_P_ ev_stat *w); |
632 | void ev_stat_stop (EV_P_ ev_stat *w); |
734 | void ev_stat_stop (EV_P_ ev_stat *w); |
633 | void ev_stat_stat (EV_P_ ev_stat *w); |
735 | void ev_stat_stat (EV_P_ ev_stat *w); |
… | |
… | |
636 | # if EV_IDLE_ENABLE |
738 | # if EV_IDLE_ENABLE |
637 | void ev_idle_start (EV_P_ ev_idle *w); |
739 | void ev_idle_start (EV_P_ ev_idle *w); |
638 | void ev_idle_stop (EV_P_ ev_idle *w); |
740 | void ev_idle_stop (EV_P_ ev_idle *w); |
639 | # endif |
741 | # endif |
640 | |
742 | |
|
|
743 | #if EV_PREPARE_ENABLE |
641 | void ev_prepare_start (EV_P_ ev_prepare *w); |
744 | void ev_prepare_start (EV_P_ ev_prepare *w); |
642 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
745 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
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|
746 | #endif |
643 | |
747 | |
|
|
748 | #if EV_CHECK_ENABLE |
644 | void ev_check_start (EV_P_ ev_check *w); |
749 | void ev_check_start (EV_P_ ev_check *w); |
645 | void ev_check_stop (EV_P_ ev_check *w); |
750 | void ev_check_stop (EV_P_ ev_check *w); |
|
|
751 | #endif |
646 | |
752 | |
647 | # if EV_FORK_ENABLE |
753 | # if EV_FORK_ENABLE |
648 | void ev_fork_start (EV_P_ ev_fork *w); |
754 | void ev_fork_start (EV_P_ ev_fork *w); |
649 | void ev_fork_stop (EV_P_ ev_fork *w); |
755 | void ev_fork_stop (EV_P_ ev_fork *w); |
650 | # endif |
756 | # endif |
… | |
… | |
660 | void ev_async_start (EV_P_ ev_async *w); |
766 | void ev_async_start (EV_P_ ev_async *w); |
661 | void ev_async_stop (EV_P_ ev_async *w); |
767 | void ev_async_stop (EV_P_ ev_async *w); |
662 | void ev_async_send (EV_P_ ev_async *w); |
768 | void ev_async_send (EV_P_ ev_async *w); |
663 | # endif |
769 | # endif |
664 | |
770 | |
|
|
771 | #if EV_COMPAT3 |
|
|
772 | #define EVLOOP_NONBLOCK EVRUN_NOWAIT |
|
|
773 | #define EVLOOP_ONESHOT EVRUN_ONCE |
|
|
774 | #define EVUNLOOP_CANCEL EVBREAK_CANCEL |
|
|
775 | #define EVUNLOOP_ONE EVBREAK_ONE |
|
|
776 | #define EVUNLOOP_ALL EVBREAK_ALL |
|
|
777 | #if EV_PROTOTYPES |
|
|
778 | EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } |
|
|
779 | EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } |
|
|
780 | EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); } |
|
|
781 | EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); } |
|
|
782 | #if EV_FEATURE_API |
|
|
783 | EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); } |
|
|
784 | EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); } |
|
|
785 | EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } |
|
|
786 | #endif |
665 | #endif |
787 | #endif |
666 | |
788 | #else |
667 | #ifdef __cplusplus |
789 | typedef struct ev_loop ev_loop; |
668 | } |
|
|
669 | #endif |
790 | #endif |
670 | |
791 | |
671 | #endif |
792 | #endif |
672 | |
793 | |
|
|
794 | EV_CPP(}) |
|
|
795 | |
|
|
796 | #endif |
|
|
797 | |