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 |
44 | extern "C" { |
44 | extern "C" { |
45 | #endif |
45 | #endif |
46 | |
46 | |
47 | typedef double ev_tstamp; |
47 | /*****************************************************************************/ |
48 | |
48 | |
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49 | /* pre-4.0 compatibility */ |
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50 | #ifndef EV_COMPAT3 |
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51 | # define EV_COMPAT3 1 |
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52 | #endif |
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53 | |
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54 | #ifndef EV_FEATURES |
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55 | # define EV_FEATURES 0x7f |
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56 | #endif |
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57 | |
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58 | #define EV_FEATURE_CODE ((EV_FEATURES) & 1) |
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59 | #define EV_FEATURE_DATA ((EV_FEATURES) & 2) |
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60 | #define EV_FEATURE_CONFIG ((EV_FEATURES) & 4) |
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61 | #define EV_FEATURE_API ((EV_FEATURES) & 8) |
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62 | #define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16) |
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63 | #define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32) |
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64 | #define EV_FEATURE_OS ((EV_FEATURES) & 64) |
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65 | |
49 | /* these priorities are inclusive, higher priorities will be called earlier */ |
66 | /* these priorities are inclusive, higher priorities will be invoked earlier */ |
50 | #ifndef EV_MINPRI |
67 | #ifndef EV_MINPRI |
51 | # define EV_MINPRI -2 |
68 | # define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0) |
52 | #endif |
69 | #endif |
53 | #ifndef EV_MAXPRI |
70 | #ifndef EV_MAXPRI |
54 | # define EV_MAXPRI +2 |
71 | # define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0) |
55 | #endif |
72 | #endif |
56 | |
73 | |
57 | #ifndef EV_MULTIPLICITY |
74 | #ifndef EV_MULTIPLICITY |
58 | # define EV_MULTIPLICITY 1 |
75 | # define EV_MULTIPLICITY EV_FEATURE_CONFIG |
59 | #endif |
76 | #endif |
60 | |
77 | |
61 | #ifndef EV_PERIODIC_ENABLE |
78 | #ifndef EV_PERIODIC_ENABLE |
62 | # define EV_PERIODIC_ENABLE 1 |
79 | # define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS |
63 | #endif |
80 | #endif |
64 | |
81 | |
65 | #ifndef EV_STAT_ENABLE |
82 | #ifndef EV_STAT_ENABLE |
66 | # define EV_STAT_ENABLE 1 |
83 | # define EV_STAT_ENABLE EV_FEATURE_WATCHERS |
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84 | #endif |
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85 | |
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86 | #ifndef EV_PREPARE_ENABLE |
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87 | # define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS |
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88 | #endif |
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89 | |
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90 | #ifndef EV_CHECK_ENABLE |
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91 | # define EV_CHECK_ENABLE EV_FEATURE_WATCHERS |
67 | #endif |
92 | #endif |
68 | |
93 | |
69 | #ifndef EV_IDLE_ENABLE |
94 | #ifndef EV_IDLE_ENABLE |
70 | # define EV_IDLE_ENABLE 1 |
95 | # define EV_IDLE_ENABLE EV_FEATURE_WATCHERS |
71 | #endif |
96 | #endif |
72 | |
97 | |
73 | #ifndef EV_FORK_ENABLE |
98 | #ifndef EV_FORK_ENABLE |
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99 | # define EV_FORK_ENABLE EV_FEATURE_WATCHERS |
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100 | #endif |
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101 | |
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102 | #ifndef EV_SIGNAL_ENABLE |
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103 | # define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS |
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104 | #endif |
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105 | |
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106 | #ifndef EV_CHILD_ENABLE |
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107 | # ifdef _WIN32 |
74 | # define EV_FORK_ENABLE 1 |
108 | # define EV_CHILD_ENABLE 0 |
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109 | # else |
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110 | # define EV_CHILD_ENABLE EV_FEATURE_WATCHERS |
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111 | #endif |
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112 | #endif |
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113 | |
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114 | #ifndef EV_ASYNC_ENABLE |
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115 | # define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS |
75 | #endif |
116 | #endif |
76 | |
117 | |
77 | #ifndef EV_EMBED_ENABLE |
118 | #ifndef EV_EMBED_ENABLE |
78 | # define EV_EMBED_ENABLE 1 |
119 | # 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 |
120 | #endif |
84 | |
121 | |
85 | #ifndef EV_WALK_ENABLE |
122 | #ifndef EV_WALK_ENABLE |
86 | # define EV_WALK_ENABLE 0 /* not yet */ |
123 | # define EV_WALK_ENABLE 0 /* not yet */ |
87 | #endif |
124 | #endif |
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125 | |
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126 | /*****************************************************************************/ |
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127 | |
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128 | #if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE |
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129 | # undef EV_SIGNAL_ENABLE |
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130 | # define EV_SIGNAL_ENABLE 1 |
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131 | #endif |
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132 | |
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133 | /*****************************************************************************/ |
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134 | |
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135 | typedef double ev_tstamp; |
88 | |
136 | |
89 | #ifndef EV_ATOMIC_T |
137 | #ifndef EV_ATOMIC_T |
90 | # include <signal.h> |
138 | # include <signal.h> |
91 | # define EV_ATOMIC_T sig_atomic_t volatile |
139 | # define EV_ATOMIC_T sig_atomic_t volatile |
92 | #endif |
140 | #endif |
93 | |
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94 | /*****************************************************************************/ |
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95 | |
141 | |
96 | #if EV_STAT_ENABLE |
142 | #if EV_STAT_ENABLE |
97 | # ifdef _WIN32 |
143 | # ifdef _WIN32 |
98 | # include <time.h> |
144 | # include <time.h> |
99 | # include <sys/types.h> |
145 | # include <sys/types.h> |
100 | # endif |
146 | # endif |
101 | # include <sys/stat.h> |
147 | # include <sys/stat.h> |
102 | #endif |
148 | #endif |
103 | |
149 | |
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150 | /* in C++ we can use this to provide default arguments */ |
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151 | #ifdef __cplusplus |
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152 | # define EV_DEFARG(x) = x |
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153 | #else |
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154 | # define EV_DEFARG(x) |
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155 | #endif |
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156 | |
104 | /* support multiple event loops? */ |
157 | /* support multiple event loops? */ |
105 | #if EV_MULTIPLICITY |
158 | #if EV_MULTIPLICITY |
106 | struct ev_loop; |
159 | struct ev_loop; |
107 | # define EV_P struct ev_loop *loop |
160 | # define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ |
108 | # define EV_P_ EV_P, |
161 | # define EV_P_ EV_P, /* a loop as first of multiple parameters */ |
109 | # define EV_A loop |
162 | # define EV_A loop /* a loop as sole argument to a function call */ |
110 | # define EV_A_ EV_A, |
163 | # define EV_A_ EV_A, /* a loop as first of multiple arguments */ |
111 | # define EV_DEFAULT_UC ev_default_loop_uc () |
164 | # define EV_DEFAULT_UC ev_default_loop_uc () /* the default loop, if initialised, as sole arg */ |
112 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, |
165 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ |
113 | # define EV_DEFAULT ev_default_loop (0) |
166 | # define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ |
114 | # define EV_DEFAULT_ EV_DEFAULT, |
167 | # define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ |
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168 | # define EV_PDEF EV_P EV_DEFARG (EV_DEFAULT_UC) /* EV_P, but with default argument in C++ */ |
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169 | # define EV_PDEF_ EV_P EV_DEFARG (EV_DEFAULT_UC), /* EV_P_, but with default argument in C++ */ |
115 | #else |
170 | #else |
116 | # define EV_P void |
171 | # define EV_P void |
117 | # define EV_P_ |
172 | # define EV_P_ |
118 | # define EV_A |
173 | # define EV_A |
119 | # define EV_A_ |
174 | # define EV_A_ |
120 | # define EV_DEFAULT |
175 | # define EV_DEFAULT |
121 | # define EV_DEFAULT_ |
176 | # define EV_DEFAULT_ |
122 | # define EV_DEFAULT_UC |
177 | # define EV_DEFAULT_UC |
123 | # define EV_DEFAULT_UC_ |
178 | # define EV_DEFAULT_UC_ |
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179 | # define EV_PDEF EV_P |
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180 | # define EV_PDEF_ EV_P_ |
124 | # undef EV_EMBED_ENABLE |
181 | # undef EV_EMBED_ENABLE |
125 | #endif |
182 | #endif |
126 | |
183 | |
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184 | /* EV_INLINE is used for functions in header files */ |
127 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
185 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
128 | # define EV_INLINE static inline |
186 | # define EV_INLINE static inline |
129 | #else |
187 | #else |
130 | # define EV_INLINE static |
188 | # define EV_INLINE static |
131 | #endif |
189 | #endif |
132 | |
190 | |
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191 | /* EV_PROTOTYPES can be sued to switch of prototype declarations */ |
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192 | #ifndef EV_PROTOTYPES |
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193 | # define EV_PROTOTYPES 1 |
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194 | #endif |
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195 | |
133 | /*****************************************************************************/ |
196 | /*****************************************************************************/ |
134 | |
197 | |
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198 | #define EV_VERSION_MAJOR 4 |
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199 | #define EV_VERSION_MINOR 0 |
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200 | |
135 | /* eventmask, revents, events... */ |
201 | /* eventmask, revents, events... */ |
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202 | enum { |
136 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
203 | EV_UNDEF = -1, /* guaranteed to be invalid */ |
137 | #define EV_NONE 0x00 /* no events */ |
204 | EV_NONE = 0x00, /* no events */ |
138 | #define EV_READ 0x01 /* ev_io detected read will not block */ |
205 | EV_READ = 0x01, /* ev_io detected read will not block */ |
139 | #define EV_WRITE 0x02 /* ev_io detected write will not block */ |
206 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
140 | #define EV__IOFDSET 0x80 /* internal use only */ |
207 | EV__IOFDSET = 0x80, /* internal use only */ |
141 | #define EV_IO EV_READ /* alias for type-detection */ |
208 | EV_IO = EV_READ, /* alias for type-detection */ |
142 | #define EV_TIMEOUT 0x00000100 /* timer timed out */ |
209 | EV_TIMER = 0x00000100, /* timer timed out */ |
143 | #define EV_TIMER EV_TIMEOUT /* alias for type-detection */ |
210 | #if EV_COMPAT3 |
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211 | EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ |
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212 | #endif |
144 | #define EV_PERIODIC 0x00000200 /* periodic timer timed out */ |
213 | EV_PERIODIC = 0x00000200, /* periodic timer timed out */ |
145 | #define EV_SIGNAL 0x00000400 /* signal was received */ |
214 | EV_SIGNAL = 0x00000400, /* signal was received */ |
146 | #define EV_CHILD 0x00000800 /* child/pid had status change */ |
215 | EV_CHILD = 0x00000800, /* child/pid had status change */ |
147 | #define EV_STAT 0x00001000 /* stat data changed */ |
216 | EV_STAT = 0x00001000, /* stat data changed */ |
148 | #define EV_IDLE 0x00002000 /* event loop is idling */ |
217 | EV_IDLE = 0x00002000, /* event loop is idling */ |
149 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
218 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
150 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
219 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
151 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
220 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
152 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
221 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
153 | #define EV_ASYNC 0x00040000 /* async intra-loop signal */ |
222 | EV_ASYNC = 0x00040000, /* async intra-loop signal */ |
154 | #define EV_CUSTOM 0x01000000 /* for use by user code */ |
223 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
155 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
224 | EV_ERROR = 0x80000000 /* sent when an error occurs */ |
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225 | }; |
156 | |
226 | |
157 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
227 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
158 | #ifndef EV_COMMON |
228 | #ifndef EV_COMMON |
159 | # define EV_COMMON void *data; |
229 | # define EV_COMMON void *data; |
160 | #endif |
230 | #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 7 |
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167 | |
231 | |
168 | #ifndef EV_CB_DECLARE |
232 | #ifndef EV_CB_DECLARE |
169 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
233 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
170 | #endif |
234 | #endif |
171 | #ifndef EV_CB_INVOKE |
235 | #ifndef EV_CB_INVOKE |
172 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
236 | # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) |
173 | #endif |
237 | #endif |
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238 | |
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239 | /* not official, do not use */ |
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240 | #define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents) |
174 | |
241 | |
175 | /* |
242 | /* |
176 | * struct member types: |
243 | * struct member types: |
177 | * private: you may look at them, but not change them, |
244 | * private: you may look at them, but not change them, |
178 | * and they might not mean anything to you. |
245 | * and they might not mean anything to you. |
… | |
… | |
189 | * or the array index + 1 in the pendings array. |
256 | * or the array index + 1 in the pendings array. |
190 | */ |
257 | */ |
191 | |
258 | |
192 | #if EV_MINPRI == EV_MAXPRI |
259 | #if EV_MINPRI == EV_MAXPRI |
193 | # define EV_DECL_PRIORITY |
260 | # define EV_DECL_PRIORITY |
194 | #else |
261 | #elif !defined (EV_DECL_PRIORITY) |
195 | # define EV_DECL_PRIORITY int priority; |
262 | # define EV_DECL_PRIORITY int priority; |
196 | #endif |
263 | #endif |
197 | |
264 | |
198 | /* shared by all watchers */ |
265 | /* shared by all watchers */ |
199 | #define EV_WATCHER(type) \ |
266 | #define EV_WATCHER(type) \ |
… | |
… | |
363 | EV_WATCHER (ev_async) |
430 | EV_WATCHER (ev_async) |
364 | |
431 | |
365 | EV_ATOMIC_T sent; /* private */ |
432 | EV_ATOMIC_T sent; /* private */ |
366 | } ev_async; |
433 | } ev_async; |
367 | |
434 | |
368 | # define ev_async_pending(w) ((w)->sent + 0) |
435 | # define ev_async_pending(w) (+(w)->sent) |
369 | #endif |
436 | #endif |
370 | |
437 | |
371 | /* the presence of this union forces similar struct layout */ |
438 | /* the presence of this union forces similar struct layout */ |
372 | union ev_any_watcher |
439 | union ev_any_watcher |
373 | { |
440 | { |
… | |
… | |
396 | #if EV_ASYNC_ENABLE |
463 | #if EV_ASYNC_ENABLE |
397 | struct ev_async async; |
464 | struct ev_async async; |
398 | #endif |
465 | #endif |
399 | }; |
466 | }; |
400 | |
467 | |
401 | /* bits for ev_default_loop and ev_loop_new */ |
468 | /* flag bits for ev_default_loop and ev_loop_new */ |
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469 | enum { |
402 | /* the default */ |
470 | /* the default */ |
403 | #define EVFLAG_AUTO 0x00000000U /* not quite a mask */ |
471 | EVFLAG_AUTO = 0x00000000U, /* not quite a mask */ |
404 | /* flag bits */ |
472 | /* flag bits */ |
405 | #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ |
473 | EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */ |
406 | #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ |
474 | EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */ |
407 | /* debugging/feature disable */ |
475 | /* debugging/feature disable */ |
408 | #define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */ |
476 | EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */ |
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477 | #if EV_COMPAT3 |
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478 | EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */ |
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479 | #endif |
409 | #define EVFLAG_NOSIGFD 0x00200000U /* do not attempt to use signalfd */ |
480 | EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */ |
|
|
481 | }; |
|
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482 | |
410 | /* method bits to be ored together */ |
483 | /* method bits to be ored together */ |
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484 | enum { |
411 | #define EVBACKEND_SELECT 0x00000001U /* about anywhere */ |
485 | EVBACKEND_SELECT = 0x00000001U, /* about anywhere */ |
412 | #define EVBACKEND_POLL 0x00000002U /* !win */ |
486 | EVBACKEND_POLL = 0x00000002U, /* !win */ |
413 | #define EVBACKEND_EPOLL 0x00000004U /* linux */ |
487 | EVBACKEND_EPOLL = 0x00000004U, /* linux */ |
414 | #define EVBACKEND_KQUEUE 0x00000008U /* bsd */ |
488 | EVBACKEND_KQUEUE = 0x00000008U, /* bsd */ |
415 | #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ |
489 | EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */ |
416 | #define EVBACKEND_PORT 0x00000020U /* solaris 10 */ |
490 | EVBACKEND_PORT = 0x00000020U, /* solaris 10 */ |
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491 | EVBACKEND_ALL = 0x0000003FU |
|
|
492 | }; |
417 | |
493 | |
418 | #if EV_PROTOTYPES |
494 | #if EV_PROTOTYPES |
419 | int ev_version_major (void); |
495 | int ev_version_major (void); |
420 | int ev_version_minor (void); |
496 | int ev_version_minor (void); |
421 | |
497 | |
… | |
… | |
450 | } |
526 | } |
451 | |
527 | |
452 | /* the default loop is the only one that handles signals and child watchers */ |
528 | /* the default loop is the only one that handles signals and child watchers */ |
453 | /* you can call this as often as you like */ |
529 | /* you can call this as often as you like */ |
454 | EV_INLINE struct ev_loop * |
530 | EV_INLINE struct ev_loop * |
455 | ev_default_loop (unsigned int flags) |
531 | ev_default_loop (unsigned int flags EV_DEFARG (0)) |
456 | { |
532 | { |
457 | struct ev_loop *loop = ev_default_loop_uc (); |
533 | struct ev_loop *loop = ev_default_loop_uc (); |
458 | |
534 | |
459 | if (!loop) |
535 | if (!loop) |
460 | { |
536 | { |
… | |
… | |
465 | |
541 | |
466 | return loop; |
542 | return loop; |
467 | } |
543 | } |
468 | |
544 | |
469 | /* create and destroy alternative loops that don't handle signals */ |
545 | /* create and destroy alternative loops that don't handle signals */ |
470 | struct ev_loop *ev_loop_new (unsigned int flags); |
546 | struct ev_loop *ev_loop_new (unsigned int flags EV_DEFARG (0)); |
471 | void ev_loop_destroy (EV_P); |
547 | void ev_loop_destroy (EV_PDEF); |
472 | void ev_loop_fork (EV_P); |
548 | void ev_loop_fork (EV_PDEF); |
473 | |
549 | |
474 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
550 | ev_tstamp ev_now (EV_PDEF); /* time w.r.t. timers and the eventloop, updated after each poll */ |
475 | |
551 | |
476 | #else |
552 | #else |
477 | |
553 | |
478 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
554 | int ev_default_loop (unsigned int flags EV_DEFARG (0)); /* returns true when successful */ |
479 | |
555 | |
480 | EV_INLINE ev_tstamp |
556 | EV_INLINE ev_tstamp |
481 | ev_now (void) |
557 | ev_now (void) |
482 | { |
558 | { |
483 | extern ev_tstamp ev_rt_now; |
559 | extern ev_tstamp ev_rt_now; |
… | |
… | |
485 | return ev_rt_now; |
561 | return ev_rt_now; |
486 | } |
562 | } |
487 | #endif /* multiplicity */ |
563 | #endif /* multiplicity */ |
488 | |
564 | |
489 | EV_INLINE int |
565 | EV_INLINE int |
490 | ev_is_default_loop (EV_P) |
566 | ev_is_default_loop (EV_PDEF) |
491 | { |
567 | { |
492 | #if EV_MULTIPLICITY |
568 | #if EV_MULTIPLICITY |
493 | extern struct ev_loop *ev_default_loop_ptr; |
569 | extern struct ev_loop *ev_default_loop_ptr; |
494 | |
570 | |
495 | return !!(EV_A == ev_default_loop_ptr); |
571 | return !!(EV_A == ev_default_loop_ptr); |
… | |
… | |
503 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
579 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
504 | /* you can call it in either the parent or the child */ |
580 | /* you can call it in either the parent or the child */ |
505 | /* you can actually call it at any time, anywhere :) */ |
581 | /* you can actually call it at any time, anywhere :) */ |
506 | void ev_default_fork (void); |
582 | void ev_default_fork (void); |
507 | |
583 | |
508 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
584 | unsigned int ev_backend (EV_PDEF); /* backend in use by loop */ |
509 | |
585 | |
510 | void ev_now_update (EV_P); /* update event loop time */ |
586 | void ev_now_update (EV_PDEF); /* update event loop time */ |
511 | |
587 | |
512 | #if EV_WALK_ENABLE |
588 | #if EV_WALK_ENABLE |
513 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
589 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
514 | /* callback on every such watcher. The callback might stop the watcher, */ |
590 | /* callback on every such watcher. The callback might stop the watcher, */ |
515 | /* but do nothing else with the loop */ |
591 | /* but do nothing else with the loop */ |
516 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
592 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
517 | #endif |
593 | #endif |
518 | |
594 | |
519 | #endif /* prototypes */ |
595 | #endif /* prototypes */ |
520 | |
596 | |
521 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
597 | /* ev_run flags values */ |
522 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
598 | enum { |
523 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
599 | EVRUN_NOWAIT = 1, /* do not block/wait */ |
524 | #define EVUNLOOP_ONE 1 /* unloop once */ |
600 | EVRUN_ONCE = 2 /* block *once* only */ |
|
|
601 | }; |
|
|
602 | |
|
|
603 | /* ev_break how values */ |
|
|
604 | enum { |
|
|
605 | EVBREAK_CANCEL = 0, /* undo unloop */ |
|
|
606 | EVBREAK_ONE = 1, /* unloop once */ |
525 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
607 | EVBREAK_ALL = 2 /* unloop all loops */ |
|
|
608 | }; |
526 | |
609 | |
527 | #if EV_PROTOTYPES |
610 | #if EV_PROTOTYPES |
528 | void ev_loop (EV_P_ int flags); |
611 | void ev_run (EV_PDEF_ int flags EV_DEFARG (0)); |
529 | 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 */ |
612 | void ev_break (EV_PDEF_ int how EV_DEFARG (EVBREAK_ONE)); /* break out of the loop */ |
530 | |
613 | |
531 | /* |
614 | /* |
532 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
615 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
533 | * keeps one reference. if you have a long-running watcher you never unregister that |
616 | * keeps one reference. if you have a long-running watcher you never unregister that |
534 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
617 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
535 | */ |
618 | */ |
536 | void ev_ref (EV_P); |
619 | void ev_ref (EV_PDEF); |
537 | void ev_unref (EV_P); |
620 | void ev_unref (EV_PDEF); |
538 | |
621 | |
539 | /* |
622 | /* |
540 | * convenience function, wait for a single event, without registering an event watcher |
623 | * convenience function, wait for a single event, without registering an event watcher |
541 | * if timeout is < 0, do wait indefinitely |
624 | * if timeout is < 0, do wait indefinitely |
542 | */ |
625 | */ |
543 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
626 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
544 | |
627 | |
545 | # if EV_MINIMAL < 2 |
628 | # if EV_FEATURE_API |
546 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
629 | unsigned int ev_iteration (EV_PDEF); /* number of loop iterations */ |
547 | unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
630 | unsigned int ev_depth (EV_PDEF); /* #ev_loop enters - #ev_loop leaves */ |
548 | void ev_loop_verify (EV_P); /* abort if loop data corrupted */ |
631 | void ev_verify (EV_PDEF); /* abort if loop data corrupted */ |
549 | |
632 | |
550 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
633 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
551 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
634 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
552 | |
635 | |
553 | /* advanced stuff for threading etc. support, see docs */ |
636 | /* advanced stuff for threading etc. support, see docs */ |
554 | void ev_set_userdata (EV_P_ void *data); |
637 | void ev_set_userdata (EV_P_ void *data); |
555 | void *ev_userdata (EV_P); |
638 | void *ev_userdata (EV_PDEF); |
556 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); |
639 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); |
557 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); |
640 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); |
558 | |
641 | |
559 | unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ |
642 | unsigned int ev_pending_count (EV_PDEF); /* number of pending events, if any */ |
560 | void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
643 | void ev_invoke_pending (EV_PDEF); /* invoke all pending watchers */ |
561 | |
644 | |
562 | /* |
645 | /* |
563 | * stop/start the timer handling. |
646 | * stop/start the timer handling. |
564 | */ |
647 | */ |
565 | void ev_suspend (EV_P); |
648 | void ev_suspend (EV_PDEF); |
566 | void ev_resume (EV_P); |
649 | void ev_resume (EV_PDEF); |
567 | #endif |
650 | #endif |
568 | |
651 | |
569 | #endif |
652 | #endif |
570 | |
653 | |
571 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
654 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
… | |
… | |
586 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
669 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
587 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
670 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
588 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
671 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
589 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
672 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
590 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
673 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
591 | #define ev_async_set(ev) do { (ev)->sent = 0; } while (0) |
674 | #define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
592 | |
675 | |
593 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
676 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
594 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
677 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
595 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
678 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
596 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
679 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
… | |
… | |
610 | |
693 | |
611 | #if EV_MINPRI == EV_MAXPRI |
694 | #if EV_MINPRI == EV_MAXPRI |
612 | # define ev_priority(ev) ((ev), EV_MINPRI) |
695 | # define ev_priority(ev) ((ev), EV_MINPRI) |
613 | # define ev_set_priority(ev,pri) ((ev), (pri)) |
696 | # define ev_set_priority(ev,pri) ((ev), (pri)) |
614 | #else |
697 | #else |
615 | # define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
698 | # define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority)) |
616 | # define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) |
699 | # define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) |
617 | #endif |
700 | #endif |
618 | |
701 | |
619 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
702 | #define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at) |
620 | |
703 | |
621 | #ifndef ev_set_cb |
704 | #ifndef ev_set_cb |
622 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
705 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
623 | #endif |
706 | #endif |
624 | |
707 | |
… | |
… | |
628 | |
711 | |
629 | /* feeds an event into a watcher as if the event actually occured */ |
712 | /* feeds an event into a watcher as if the event actually occured */ |
630 | /* accepts any ev_watcher type */ |
713 | /* accepts any ev_watcher type */ |
631 | void ev_feed_event (EV_P_ void *w, int revents); |
714 | void ev_feed_event (EV_P_ void *w, int revents); |
632 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
715 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
|
|
716 | #if EV_SIGNAL_ENABLE |
633 | void ev_feed_signal_event (EV_P_ int signum); |
717 | void ev_feed_signal_event (EV_P_ int signum); |
|
|
718 | #endif |
634 | void ev_invoke (EV_P_ void *w, int revents); |
719 | void ev_invoke (EV_P_ void *w, int revents); |
635 | int ev_clear_pending (EV_P_ void *w); |
720 | int ev_clear_pending (EV_P_ void *w); |
636 | |
721 | |
637 | void ev_io_start (EV_P_ ev_io *w); |
722 | void ev_io_start (EV_P_ ev_io *w); |
638 | void ev_io_stop (EV_P_ ev_io *w); |
723 | void ev_io_stop (EV_P_ ev_io *w); |
… | |
… | |
649 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
734 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
650 | void ev_periodic_again (EV_P_ ev_periodic *w); |
735 | void ev_periodic_again (EV_P_ ev_periodic *w); |
651 | #endif |
736 | #endif |
652 | |
737 | |
653 | /* only supported in the default loop */ |
738 | /* only supported in the default loop */ |
|
|
739 | #if EV_SIGNAL_ENABLE |
654 | void ev_signal_start (EV_P_ ev_signal *w); |
740 | void ev_signal_start (EV_P_ ev_signal *w); |
655 | void ev_signal_stop (EV_P_ ev_signal *w); |
741 | void ev_signal_stop (EV_P_ ev_signal *w); |
|
|
742 | #endif |
656 | |
743 | |
657 | /* only supported in the default loop */ |
744 | /* only supported in the default loop */ |
|
|
745 | # if EV_CHILD_ENABLE |
658 | void ev_child_start (EV_P_ ev_child *w); |
746 | void ev_child_start (EV_P_ ev_child *w); |
659 | void ev_child_stop (EV_P_ ev_child *w); |
747 | void ev_child_stop (EV_P_ ev_child *w); |
|
|
748 | # endif |
660 | |
749 | |
661 | # if EV_STAT_ENABLE |
750 | # if EV_STAT_ENABLE |
662 | void ev_stat_start (EV_P_ ev_stat *w); |
751 | void ev_stat_start (EV_P_ ev_stat *w); |
663 | void ev_stat_stop (EV_P_ ev_stat *w); |
752 | void ev_stat_stop (EV_P_ ev_stat *w); |
664 | void ev_stat_stat (EV_P_ ev_stat *w); |
753 | void ev_stat_stat (EV_P_ ev_stat *w); |
… | |
… | |
667 | # if EV_IDLE_ENABLE |
756 | # if EV_IDLE_ENABLE |
668 | void ev_idle_start (EV_P_ ev_idle *w); |
757 | void ev_idle_start (EV_P_ ev_idle *w); |
669 | void ev_idle_stop (EV_P_ ev_idle *w); |
758 | void ev_idle_stop (EV_P_ ev_idle *w); |
670 | # endif |
759 | # endif |
671 | |
760 | |
|
|
761 | #if EV_PREPARE_ENABLE |
672 | void ev_prepare_start (EV_P_ ev_prepare *w); |
762 | void ev_prepare_start (EV_P_ ev_prepare *w); |
673 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
763 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
|
|
764 | #endif |
674 | |
765 | |
|
|
766 | #if EV_CHECK_ENABLE |
675 | void ev_check_start (EV_P_ ev_check *w); |
767 | void ev_check_start (EV_P_ ev_check *w); |
676 | void ev_check_stop (EV_P_ ev_check *w); |
768 | void ev_check_stop (EV_P_ ev_check *w); |
|
|
769 | #endif |
677 | |
770 | |
678 | # if EV_FORK_ENABLE |
771 | # if EV_FORK_ENABLE |
679 | void ev_fork_start (EV_P_ ev_fork *w); |
772 | void ev_fork_start (EV_P_ ev_fork *w); |
680 | void ev_fork_stop (EV_P_ ev_fork *w); |
773 | void ev_fork_stop (EV_P_ ev_fork *w); |
681 | # endif |
774 | # endif |
… | |
… | |
691 | void ev_async_start (EV_P_ ev_async *w); |
784 | void ev_async_start (EV_P_ ev_async *w); |
692 | void ev_async_stop (EV_P_ ev_async *w); |
785 | void ev_async_stop (EV_P_ ev_async *w); |
693 | void ev_async_send (EV_P_ ev_async *w); |
786 | void ev_async_send (EV_P_ ev_async *w); |
694 | # endif |
787 | # endif |
695 | |
788 | |
|
|
789 | #if EV_COMPAT3 |
|
|
790 | #define EVLOOP_NONBLOCK EVRUN_NOWAIT |
|
|
791 | #define EVLOOP_ONESHOT EVRUN_ONCE |
|
|
792 | #define EVUNLOOP_CANCEL EVBREAK_CANCEL |
|
|
793 | #define EVUNLOOP_ONE EVBREAK_ONE |
|
|
794 | #define EVUNLOOP_ALL EVBREAK_ALL |
|
|
795 | #if EV_PROTOTYPES |
|
|
796 | EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } |
|
|
797 | EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } |
|
|
798 | #if EV_FEATURE_API |
|
|
799 | EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); } |
|
|
800 | EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); } |
|
|
801 | EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } |
|
|
802 | #endif |
|
|
803 | #endif |
|
|
804 | #else |
|
|
805 | typedef struct ev_loop ev_loop; |
|
|
806 | #endif |
|
|
807 | |
696 | #endif |
808 | #endif |
697 | |
809 | |
698 | #ifdef __cplusplus |
810 | #ifdef __cplusplus |
699 | } |
811 | } |
700 | #endif |
812 | #endif |