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 | * |
… | |
… | |
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_CLEANUP_ENABLE |
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107 | # define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS |
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108 | #endif |
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109 | |
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110 | #ifndef EV_SIGNAL_ENABLE |
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111 | # define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS |
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112 | #endif |
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113 | |
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114 | #ifndef EV_CHILD_ENABLE |
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115 | # ifdef _WIN32 |
74 | # define EV_FORK_ENABLE 1 |
116 | # define EV_CHILD_ENABLE 0 |
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117 | # else |
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118 | # define EV_CHILD_ENABLE EV_FEATURE_WATCHERS |
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119 | #endif |
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120 | #endif |
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121 | |
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122 | #ifndef EV_ASYNC_ENABLE |
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123 | # define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS |
75 | #endif |
124 | #endif |
76 | |
125 | |
77 | #ifndef EV_EMBED_ENABLE |
126 | #ifndef EV_EMBED_ENABLE |
78 | # define EV_EMBED_ENABLE 1 |
127 | # 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 |
128 | #endif |
84 | |
129 | |
85 | #ifndef EV_WALK_ENABLE |
130 | #ifndef EV_WALK_ENABLE |
86 | # define EV_WALK_ENABLE 0 /* not yet */ |
131 | # define EV_WALK_ENABLE 0 /* not yet */ |
87 | #endif |
132 | #endif |
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133 | |
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134 | /*****************************************************************************/ |
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135 | |
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136 | #if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE |
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137 | # undef EV_SIGNAL_ENABLE |
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138 | # define EV_SIGNAL_ENABLE 1 |
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139 | #endif |
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140 | |
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141 | /*****************************************************************************/ |
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142 | |
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143 | typedef double ev_tstamp; |
88 | |
144 | |
89 | #ifndef EV_ATOMIC_T |
145 | #ifndef EV_ATOMIC_T |
90 | # include <signal.h> |
146 | # include <signal.h> |
91 | # define EV_ATOMIC_T sig_atomic_t volatile |
147 | # define EV_ATOMIC_T sig_atomic_t volatile |
92 | #endif |
148 | #endif |
93 | |
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94 | /*****************************************************************************/ |
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95 | |
149 | |
96 | #if EV_STAT_ENABLE |
150 | #if EV_STAT_ENABLE |
97 | # ifdef _WIN32 |
151 | # ifdef _WIN32 |
98 | # include <time.h> |
152 | # include <time.h> |
99 | # include <sys/types.h> |
153 | # include <sys/types.h> |
… | |
… | |
102 | #endif |
156 | #endif |
103 | |
157 | |
104 | /* support multiple event loops? */ |
158 | /* support multiple event loops? */ |
105 | #if EV_MULTIPLICITY |
159 | #if EV_MULTIPLICITY |
106 | struct ev_loop; |
160 | struct ev_loop; |
107 | # define EV_P struct ev_loop *loop |
161 | # define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ |
108 | # define EV_P_ EV_P, |
162 | # define EV_P_ EV_P, /* a loop as first of multiple parameters */ |
109 | # define EV_A loop |
163 | # define EV_A loop /* a loop as sole argument to a function call */ |
110 | # define EV_A_ EV_A, |
164 | # define EV_A_ EV_A, /* a loop as first of multiple arguments */ |
111 | # define EV_DEFAULT_UC ev_default_loop_uc () |
165 | # define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */ |
112 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, |
166 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ |
113 | # define EV_DEFAULT ev_default_loop (0) |
167 | # define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ |
114 | # define EV_DEFAULT_ EV_DEFAULT, |
168 | # define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ |
115 | #else |
169 | #else |
116 | # define EV_P void |
170 | # define EV_P void |
117 | # define EV_P_ |
171 | # define EV_P_ |
118 | # define EV_A |
172 | # define EV_A |
119 | # define EV_A_ |
173 | # define EV_A_ |
… | |
… | |
122 | # define EV_DEFAULT_UC |
176 | # define EV_DEFAULT_UC |
123 | # define EV_DEFAULT_UC_ |
177 | # define EV_DEFAULT_UC_ |
124 | # undef EV_EMBED_ENABLE |
178 | # undef EV_EMBED_ENABLE |
125 | #endif |
179 | #endif |
126 | |
180 | |
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181 | /* EV_INLINE is used for functions in header files */ |
127 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
182 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
128 | # define EV_INLINE static inline |
183 | # define EV_INLINE static inline |
129 | #else |
184 | #else |
130 | # define EV_INLINE static |
185 | # define EV_INLINE static |
131 | #endif |
186 | #endif |
132 | |
187 | |
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188 | /* EV_PROTOTYPES can be sued to switch of prototype declarations */ |
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189 | #ifndef EV_PROTOTYPES |
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190 | # define EV_PROTOTYPES 1 |
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191 | #endif |
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192 | |
133 | /*****************************************************************************/ |
193 | /*****************************************************************************/ |
134 | |
194 | |
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195 | #define EV_VERSION_MAJOR 4 |
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196 | #define EV_VERSION_MINOR 0 |
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197 | |
135 | /* eventmask, revents, events... */ |
198 | /* eventmask, revents, events... */ |
136 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
199 | enum { |
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200 | EV_UNDEF = 0xFFFFFFFF, /* guaranteed to be invalid */ |
137 | #define EV_NONE 0x00 /* no events */ |
201 | EV_NONE = 0x00, /* no events */ |
138 | #define EV_READ 0x01 /* ev_io detected read will not block */ |
202 | EV_READ = 0x01, /* ev_io detected read will not block */ |
139 | #define EV_WRITE 0x02 /* ev_io detected write will not block */ |
203 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
140 | #define EV__IOFDSET 0x80 /* internal use only */ |
204 | EV__IOFDSET = 0x80, /* internal use only */ |
141 | #define EV_IO EV_READ /* alias for type-detection */ |
205 | EV_IO = EV_READ, /* alias for type-detection */ |
142 | #define EV_TIMEOUT 0x00000100 /* timer timed out */ |
206 | EV_TIMER = 0x00000100, /* timer timed out */ |
143 | #define EV_TIMER EV_TIMEOUT /* alias for type-detection */ |
207 | #if EV_COMPAT3 |
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208 | EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ |
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209 | #endif |
144 | #define EV_PERIODIC 0x00000200 /* periodic timer timed out */ |
210 | EV_PERIODIC = 0x00000200, /* periodic timer timed out */ |
145 | #define EV_SIGNAL 0x00000400 /* signal was received */ |
211 | EV_SIGNAL = 0x00000400, /* signal was received */ |
146 | #define EV_CHILD 0x00000800 /* child/pid had status change */ |
212 | EV_CHILD = 0x00000800, /* child/pid had status change */ |
147 | #define EV_STAT 0x00001000 /* stat data changed */ |
213 | EV_STAT = 0x00001000, /* stat data changed */ |
148 | #define EV_IDLE 0x00002000 /* event loop is idling */ |
214 | EV_IDLE = 0x00002000, /* event loop is idling */ |
149 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
215 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
150 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
216 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
151 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
217 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
152 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
218 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
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219 | EV_CLEANUP = 0x00040000, /* event loop resumed in child */ |
153 | #define EV_ASYNC 0x00040000 /* async intra-loop signal */ |
220 | EV_ASYNC = 0x00080000, /* async intra-loop signal */ |
154 | #define EV_CUSTOM 0x01000000 /* for use by user code */ |
221 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
155 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
222 | EV_ERROR = 0x80000000 /* sent when an error occurs */ |
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223 | }; |
156 | |
224 | |
157 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
225 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
158 | #ifndef EV_COMMON |
226 | #ifndef EV_COMMON |
159 | # define EV_COMMON void *data; |
227 | # define EV_COMMON void *data; |
160 | #endif |
228 | #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 9 |
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167 | |
229 | |
168 | #ifndef EV_CB_DECLARE |
230 | #ifndef EV_CB_DECLARE |
169 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
231 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
170 | #endif |
232 | #endif |
171 | #ifndef EV_CB_INVOKE |
233 | #ifndef EV_CB_INVOKE |
172 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
234 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
173 | #endif |
235 | #endif |
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236 | |
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237 | /* not official, do not use */ |
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238 | #define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents) |
174 | |
239 | |
175 | /* |
240 | /* |
176 | * struct member types: |
241 | * struct member types: |
177 | * private: you may look at them, but not change them, |
242 | * private: you may look at them, but not change them, |
178 | * and they might not mean anything to you. |
243 | * and they might not mean anything to you. |
… | |
… | |
189 | * or the array index + 1 in the pendings array. |
254 | * or the array index + 1 in the pendings array. |
190 | */ |
255 | */ |
191 | |
256 | |
192 | #if EV_MINPRI == EV_MAXPRI |
257 | #if EV_MINPRI == EV_MAXPRI |
193 | # define EV_DECL_PRIORITY |
258 | # define EV_DECL_PRIORITY |
194 | #else |
259 | #elif !defined (EV_DECL_PRIORITY) |
195 | # define EV_DECL_PRIORITY int priority; |
260 | # define EV_DECL_PRIORITY int priority; |
196 | #endif |
261 | #endif |
197 | |
262 | |
198 | /* shared by all watchers */ |
263 | /* shared by all watchers */ |
199 | #define EV_WATCHER(type) \ |
264 | #define EV_WATCHER(type) \ |
… | |
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329 | EV_WATCHER (ev_check) |
394 | EV_WATCHER (ev_check) |
330 | } ev_check; |
395 | } ev_check; |
331 | |
396 | |
332 | #if EV_FORK_ENABLE |
397 | #if EV_FORK_ENABLE |
333 | /* the callback gets invoked before check in the child process when a fork was detected */ |
398 | /* the callback gets invoked before check in the child process when a fork was detected */ |
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399 | /* revent EV_FORK */ |
334 | typedef struct ev_fork |
400 | typedef struct ev_fork |
335 | { |
401 | { |
336 | EV_WATCHER (ev_fork) |
402 | EV_WATCHER (ev_fork) |
337 | } ev_fork; |
403 | } ev_fork; |
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404 | #endif |
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405 | |
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406 | #if EV_CLEANUP_ENABLE |
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407 | /* is invoked just before the loop gets destroyed */ |
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408 | /* revent EV_CLEANUP */ |
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409 | typedef struct ev_cleanup |
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410 | { |
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411 | EV_WATCHER (ev_cleanup) |
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412 | } ev_cleanup; |
338 | #endif |
413 | #endif |
339 | |
414 | |
340 | #if EV_EMBED_ENABLE |
415 | #if EV_EMBED_ENABLE |
341 | /* used to embed an event loop inside another */ |
416 | /* used to embed an event loop inside another */ |
342 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
417 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
… | |
… | |
350 | ev_check check; /* unused */ |
425 | ev_check check; /* unused */ |
351 | ev_timer timer; /* unused */ |
426 | ev_timer timer; /* unused */ |
352 | ev_periodic periodic; /* unused */ |
427 | ev_periodic periodic; /* unused */ |
353 | ev_idle idle; /* unused */ |
428 | ev_idle idle; /* unused */ |
354 | ev_fork fork; /* private */ |
429 | ev_fork fork; /* private */ |
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430 | #if EV_CLEANUP_ENABLE |
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431 | ev_cleanup cleanup; /* unused */ |
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432 | #endif |
355 | } ev_embed; |
433 | } ev_embed; |
356 | #endif |
434 | #endif |
357 | |
435 | |
358 | #if EV_ASYNC_ENABLE |
436 | #if EV_ASYNC_ENABLE |
359 | /* invoked when somebody calls ev_async_send on the watcher */ |
437 | /* invoked when somebody calls ev_async_send on the watcher */ |
… | |
… | |
388 | struct ev_prepare prepare; |
466 | struct ev_prepare prepare; |
389 | struct ev_check check; |
467 | struct ev_check check; |
390 | #if EV_FORK_ENABLE |
468 | #if EV_FORK_ENABLE |
391 | struct ev_fork fork; |
469 | struct ev_fork fork; |
392 | #endif |
470 | #endif |
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471 | #if EV_CLEANUP_ENABLE |
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472 | struct ev_cleanup cleanup; |
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473 | #endif |
393 | #if EV_EMBED_ENABLE |
474 | #if EV_EMBED_ENABLE |
394 | struct ev_embed embed; |
475 | struct ev_embed embed; |
395 | #endif |
476 | #endif |
396 | #if EV_ASYNC_ENABLE |
477 | #if EV_ASYNC_ENABLE |
397 | struct ev_async async; |
478 | struct ev_async async; |
398 | #endif |
479 | #endif |
399 | }; |
480 | }; |
400 | |
481 | |
401 | /* bits for ev_default_loop and ev_loop_new */ |
482 | /* flag bits for ev_default_loop and ev_loop_new */ |
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483 | enum { |
402 | /* the default */ |
484 | /* the default */ |
403 | #define EVFLAG_AUTO 0x00000000U /* not quite a mask */ |
485 | EVFLAG_AUTO = 0x00000000U, /* not quite a mask */ |
404 | /* flag bits */ |
486 | /* flag bits */ |
405 | #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ |
487 | EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */ |
406 | #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ |
488 | EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */ |
407 | /* debugging/feature disable */ |
489 | /* debugging/feature disable */ |
408 | #define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */ |
490 | EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ |
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491 | #if EV_COMPAT3 |
409 | #define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */ |
492 | EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ |
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493 | #endif |
410 | #define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */ |
494 | EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */ |
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495 | }; |
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496 | |
411 | /* method bits to be ored together */ |
497 | /* method bits to be ored together */ |
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498 | enum { |
412 | #define EVBACKEND_SELECT 0x00000001U /* about anywhere */ |
499 | EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ |
413 | #define EVBACKEND_POLL 0x00000002U /* !win */ |
500 | EVBACKEND_POLL = 0x00000002U, /* !win */ |
414 | #define EVBACKEND_EPOLL 0x00000004U /* linux */ |
501 | EVBACKEND_EPOLL = 0x00000004U, /* linux */ |
415 | #define EVBACKEND_KQUEUE 0x00000008U /* bsd */ |
502 | EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ |
416 | #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ |
503 | EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ |
417 | #define EVBACKEND_PORT 0x00000020U /* solaris 10 */ |
504 | EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ |
418 | #define EVBACKEND_ALL 0x0000003FU |
505 | EVBACKEND_ALL = 0x0000003FU |
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506 | }; |
419 | |
507 | |
420 | #if EV_PROTOTYPES |
508 | #if EV_PROTOTYPES |
421 | int ev_version_major (void); |
509 | int ev_version_major (void); |
422 | int ev_version_minor (void); |
510 | int ev_version_minor (void); |
423 | |
511 | |
… | |
… | |
441 | * (such as failed select, poll, epoll_wait) |
529 | * (such as failed select, poll, epoll_wait) |
442 | */ |
530 | */ |
443 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
531 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
444 | |
532 | |
445 | #if EV_MULTIPLICITY |
533 | #if EV_MULTIPLICITY |
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534 | |
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535 | /* the default loop is the only one that handles signals and child watchers */ |
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536 | /* you can call this as often as you like */ |
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537 | struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)); |
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538 | |
446 | EV_INLINE struct ev_loop * |
539 | EV_INLINE struct ev_loop * |
447 | ev_default_loop_uc (void) |
540 | ev_default_loop_uc_ (void) |
448 | { |
541 | { |
449 | extern struct ev_loop *ev_default_loop_ptr; |
542 | extern struct ev_loop *ev_default_loop_ptr; |
450 | |
543 | |
451 | return ev_default_loop_ptr; |
544 | return ev_default_loop_ptr; |
452 | } |
545 | } |
453 | |
546 | |
454 | /* the default loop is the only one that handles signals and child watchers */ |
547 | EV_INLINE int |
455 | /* you can call this as often as you like */ |
548 | ev_is_default_loop (EV_P) |
456 | EV_INLINE struct ev_loop * |
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457 | ev_default_loop (unsigned int flags) |
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458 | { |
549 | { |
459 | struct ev_loop *loop = ev_default_loop_uc (); |
550 | return EV_A == EV_DEFAULT_UC; |
460 | |
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461 | if (!loop) |
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462 | { |
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463 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
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464 | |
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|
465 | loop = ev_default_loop_init (flags); |
|
|
466 | } |
|
|
467 | |
|
|
468 | return loop; |
|
|
469 | } |
551 | } |
470 | |
552 | |
471 | /* create and destroy alternative loops that don't handle signals */ |
553 | /* create and destroy alternative loops that don't handle signals */ |
472 | struct ev_loop *ev_loop_new (unsigned int flags); |
554 | struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)); |
473 | void ev_loop_destroy (EV_P); |
|
|
474 | void ev_loop_fork (EV_P); |
|
|
475 | |
555 | |
476 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
556 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
477 | |
557 | |
478 | #else |
558 | #else |
479 | |
559 | |
480 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
560 | int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */ |
481 | |
561 | |
482 | EV_INLINE ev_tstamp |
562 | EV_INLINE ev_tstamp |
483 | ev_now (void) |
563 | ev_now (void) |
484 | { |
564 | { |
485 | extern ev_tstamp ev_rt_now; |
565 | extern ev_tstamp ev_rt_now; |
486 | |
566 | |
487 | return ev_rt_now; |
567 | return ev_rt_now; |
488 | } |
568 | } |
|
|
569 | |
|
|
570 | /* looks weird, but ev_is_default_loop (EV_A) still works if this exists */ |
|
|
571 | EV_INLINE int |
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|
572 | ev_is_default_loop (void) |
|
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573 | { |
|
|
574 | return 1; |
|
|
575 | } |
|
|
576 | |
489 | #endif /* multiplicity */ |
577 | #endif /* multiplicity */ |
490 | |
578 | |
491 | EV_INLINE int |
579 | /* destroy event loops, also works for the default loop */ |
492 | ev_is_default_loop (EV_P) |
580 | void ev_loop_destroy (EV_P); |
493 | { |
|
|
494 | #if EV_MULTIPLICITY |
|
|
495 | extern struct ev_loop *ev_default_loop_ptr; |
|
|
496 | |
581 | |
497 | return !!(EV_A == ev_default_loop_ptr); |
|
|
498 | #else |
|
|
499 | return 1; |
|
|
500 | #endif |
|
|
501 | } |
|
|
502 | |
|
|
503 | void ev_default_destroy (void); /* destroy the default loop */ |
|
|
504 | /* this needs to be called after fork, to duplicate the default loop */ |
582 | /* this needs to be called after fork, to duplicate the loop */ |
505 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
583 | /* when you want to re-use it in the child */ |
506 | /* you can call it in either the parent or the child */ |
584 | /* you can call it in either the parent or the child */ |
507 | /* you can actually call it at any time, anywhere :) */ |
585 | /* you can actually call it at any time, anywhere :) */ |
508 | void ev_default_fork (void); |
586 | void ev_loop_fork (EV_P); |
509 | |
587 | |
510 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
588 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
511 | |
589 | |
512 | void ev_now_update (EV_P); /* update event loop time */ |
590 | void ev_now_update (EV_P); /* update event loop time */ |
513 | |
591 | |
… | |
… | |
518 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
596 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
519 | #endif |
597 | #endif |
520 | |
598 | |
521 | #endif /* prototypes */ |
599 | #endif /* prototypes */ |
522 | |
600 | |
523 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
601 | /* ev_run flags values */ |
524 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
602 | enum { |
525 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
603 | EVRUN_NOWAIT = 1, /* do not block/wait */ |
526 | #define EVUNLOOP_ONE 1 /* unloop once */ |
604 | EVRUN_ONCE = 2 /* block *once* only */ |
|
|
605 | }; |
|
|
606 | |
|
|
607 | /* ev_break how values */ |
|
|
608 | enum { |
|
|
609 | EVBREAK_CANCEL = 0, /* undo unloop */ |
|
|
610 | EVBREAK_ONE = 1, /* unloop once */ |
527 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
611 | EVBREAK_ALL = 2 /* unloop all loops */ |
|
|
612 | }; |
528 | |
613 | |
529 | #if EV_PROTOTYPES |
614 | #if EV_PROTOTYPES |
530 | void ev_loop (EV_P_ int flags); |
615 | void ev_run (EV_P_ int flags EV_CPP (= 0)); |
531 | 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 */ |
616 | void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */ |
532 | |
617 | |
533 | /* |
618 | /* |
534 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
619 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
535 | * keeps one reference. if you have a long-running watcher you never unregister that |
620 | * keeps one reference. if you have a long-running watcher you never unregister that |
536 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
621 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
… | |
… | |
542 | * convenience function, wait for a single event, without registering an event watcher |
627 | * convenience function, wait for a single event, without registering an event watcher |
543 | * if timeout is < 0, do wait indefinitely |
628 | * if timeout is < 0, do wait indefinitely |
544 | */ |
629 | */ |
545 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
630 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
546 | |
631 | |
547 | # if EV_MINIMAL < 2 |
632 | # if EV_FEATURE_API |
548 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
633 | unsigned int ev_iteration (EV_P); /* number of loop iterations */ |
549 | unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
634 | unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
550 | void ev_loop_verify (EV_P); /* abort if loop data corrupted */ |
635 | void ev_verify (EV_P); /* abort if loop data corrupted */ |
551 | |
636 | |
552 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
637 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
553 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
638 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
554 | |
639 | |
555 | /* advanced stuff for threading etc. support, see docs */ |
640 | /* advanced stuff for threading etc. support, see docs */ |
… | |
… | |
588 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
673 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
589 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
674 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
590 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
675 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
591 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
676 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
592 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
677 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
593 | #define ev_async_set(ev) do { (ev)->sent = 0; } while (0) |
678 | #define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */ |
|
|
679 | #define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
594 | |
680 | |
595 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
681 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
596 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
682 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
597 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
683 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
598 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
684 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
… | |
… | |
601 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
687 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
602 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
688 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
603 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
689 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
604 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
690 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
605 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
691 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
|
|
692 | #define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0) |
606 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
693 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
607 | |
694 | |
608 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
695 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
609 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
696 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
610 | |
697 | |
… | |
… | |
630 | |
717 | |
631 | /* feeds an event into a watcher as if the event actually occured */ |
718 | /* feeds an event into a watcher as if the event actually occured */ |
632 | /* accepts any ev_watcher type */ |
719 | /* accepts any ev_watcher type */ |
633 | void ev_feed_event (EV_P_ void *w, int revents); |
720 | void ev_feed_event (EV_P_ void *w, int revents); |
634 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
721 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
|
|
722 | #if EV_SIGNAL_ENABLE |
635 | void ev_feed_signal_event (EV_P_ int signum); |
723 | void ev_feed_signal_event (EV_P_ int signum); |
|
|
724 | #endif |
636 | void ev_invoke (EV_P_ void *w, int revents); |
725 | void ev_invoke (EV_P_ void *w, int revents); |
637 | int ev_clear_pending (EV_P_ void *w); |
726 | int ev_clear_pending (EV_P_ void *w); |
638 | |
727 | |
639 | void ev_io_start (EV_P_ ev_io *w); |
728 | void ev_io_start (EV_P_ ev_io *w); |
640 | void ev_io_stop (EV_P_ ev_io *w); |
729 | void ev_io_stop (EV_P_ ev_io *w); |
… | |
… | |
651 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
740 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
652 | void ev_periodic_again (EV_P_ ev_periodic *w); |
741 | void ev_periodic_again (EV_P_ ev_periodic *w); |
653 | #endif |
742 | #endif |
654 | |
743 | |
655 | /* only supported in the default loop */ |
744 | /* only supported in the default loop */ |
|
|
745 | #if EV_SIGNAL_ENABLE |
656 | void ev_signal_start (EV_P_ ev_signal *w); |
746 | void ev_signal_start (EV_P_ ev_signal *w); |
657 | void ev_signal_stop (EV_P_ ev_signal *w); |
747 | void ev_signal_stop (EV_P_ ev_signal *w); |
|
|
748 | #endif |
658 | |
749 | |
659 | /* only supported in the default loop */ |
750 | /* only supported in the default loop */ |
|
|
751 | # if EV_CHILD_ENABLE |
660 | void ev_child_start (EV_P_ ev_child *w); |
752 | void ev_child_start (EV_P_ ev_child *w); |
661 | void ev_child_stop (EV_P_ ev_child *w); |
753 | void ev_child_stop (EV_P_ ev_child *w); |
|
|
754 | # endif |
662 | |
755 | |
663 | # if EV_STAT_ENABLE |
756 | # if EV_STAT_ENABLE |
664 | void ev_stat_start (EV_P_ ev_stat *w); |
757 | void ev_stat_start (EV_P_ ev_stat *w); |
665 | void ev_stat_stop (EV_P_ ev_stat *w); |
758 | void ev_stat_stop (EV_P_ ev_stat *w); |
666 | void ev_stat_stat (EV_P_ ev_stat *w); |
759 | void ev_stat_stat (EV_P_ ev_stat *w); |
… | |
… | |
669 | # if EV_IDLE_ENABLE |
762 | # if EV_IDLE_ENABLE |
670 | void ev_idle_start (EV_P_ ev_idle *w); |
763 | void ev_idle_start (EV_P_ ev_idle *w); |
671 | void ev_idle_stop (EV_P_ ev_idle *w); |
764 | void ev_idle_stop (EV_P_ ev_idle *w); |
672 | # endif |
765 | # endif |
673 | |
766 | |
|
|
767 | #if EV_PREPARE_ENABLE |
674 | void ev_prepare_start (EV_P_ ev_prepare *w); |
768 | void ev_prepare_start (EV_P_ ev_prepare *w); |
675 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
769 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
|
|
770 | #endif |
676 | |
771 | |
|
|
772 | #if EV_CHECK_ENABLE |
677 | void ev_check_start (EV_P_ ev_check *w); |
773 | void ev_check_start (EV_P_ ev_check *w); |
678 | void ev_check_stop (EV_P_ ev_check *w); |
774 | void ev_check_stop (EV_P_ ev_check *w); |
|
|
775 | #endif |
679 | |
776 | |
680 | # if EV_FORK_ENABLE |
777 | # if EV_FORK_ENABLE |
681 | void ev_fork_start (EV_P_ ev_fork *w); |
778 | void ev_fork_start (EV_P_ ev_fork *w); |
682 | void ev_fork_stop (EV_P_ ev_fork *w); |
779 | void ev_fork_stop (EV_P_ ev_fork *w); |
|
|
780 | # endif |
|
|
781 | |
|
|
782 | # if EV_CLEANUP_ENABLE |
|
|
783 | void ev_cleanup_start (EV_P_ ev_cleanup *w); |
|
|
784 | void ev_cleanup_stop (EV_P_ ev_cleanup *w); |
683 | # endif |
785 | # endif |
684 | |
786 | |
685 | # if EV_EMBED_ENABLE |
787 | # if EV_EMBED_ENABLE |
686 | /* only supported when loop to be embedded is in fact embeddable */ |
788 | /* only supported when loop to be embedded is in fact embeddable */ |
687 | void ev_embed_start (EV_P_ ev_embed *w); |
789 | void ev_embed_start (EV_P_ ev_embed *w); |
… | |
… | |
693 | void ev_async_start (EV_P_ ev_async *w); |
795 | void ev_async_start (EV_P_ ev_async *w); |
694 | void ev_async_stop (EV_P_ ev_async *w); |
796 | void ev_async_stop (EV_P_ ev_async *w); |
695 | void ev_async_send (EV_P_ ev_async *w); |
797 | void ev_async_send (EV_P_ ev_async *w); |
696 | # endif |
798 | # endif |
697 | |
799 | |
|
|
800 | #if EV_COMPAT3 |
|
|
801 | #define EVLOOP_NONBLOCK EVRUN_NOWAIT |
|
|
802 | #define EVLOOP_ONESHOT EVRUN_ONCE |
|
|
803 | #define EVUNLOOP_CANCEL EVBREAK_CANCEL |
|
|
804 | #define EVUNLOOP_ONE EVBREAK_ONE |
|
|
805 | #define EVUNLOOP_ALL EVBREAK_ALL |
|
|
806 | #if EV_PROTOTYPES |
|
|
807 | EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } |
|
|
808 | EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } |
|
|
809 | EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); } |
|
|
810 | EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); } |
|
|
811 | #if EV_FEATURE_API |
|
|
812 | EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); } |
|
|
813 | EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); } |
|
|
814 | EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } |
|
|
815 | #endif |
698 | #endif |
816 | #endif |
699 | |
817 | #else |
700 | #ifdef __cplusplus |
818 | typedef struct ev_loop ev_loop; |
701 | } |
|
|
702 | #endif |
819 | #endif |
703 | |
820 | |
704 | #endif |
821 | #endif |
705 | |
822 | |
|
|
823 | EV_CPP(}) |
|
|
824 | |
|
|
825 | #endif |
|
|
826 | |