1 | /* |
1 | /* |
2 | * libev simple C++ wrapper classes |
2 | * libev simple C++ wrapper classes |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2010 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 | * |
… | |
… | |
56 | |
56 | |
57 | namespace ev { |
57 | namespace ev { |
58 | |
58 | |
59 | typedef ev_tstamp tstamp; |
59 | typedef ev_tstamp tstamp; |
60 | |
60 | |
61 | enum { |
61 | enum |
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62 | { |
62 | UNDEF = EV_UNDEF, |
63 | UNDEF = EV_UNDEF, |
63 | NONE = EV_NONE, |
64 | NONE = EV_NONE, |
64 | READ = EV_READ, |
65 | READ = EV_READ, |
65 | WRITE = EV_WRITE, |
66 | WRITE = EV_WRITE, |
66 | TIMEOUT = EV_TIMEOUT, |
67 | TIMEOUT = EV_TIMEOUT, |
… | |
… | |
72 | CHECK = EV_CHECK, |
73 | CHECK = EV_CHECK, |
73 | PREPARE = EV_PREPARE, |
74 | PREPARE = EV_PREPARE, |
74 | FORK = EV_FORK, |
75 | FORK = EV_FORK, |
75 | ASYNC = EV_ASYNC, |
76 | ASYNC = EV_ASYNC, |
76 | EMBED = EV_EMBED, |
77 | EMBED = EV_EMBED, |
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78 | # undef ERROR // some systems stupidly #define ERROR |
77 | ERROR = EV_ERROR, |
79 | ERROR = EV_ERROR, |
78 | }; |
80 | }; |
79 | |
81 | |
80 | enum |
82 | enum |
81 | { |
83 | { |
82 | AUTO = EVFLAG_AUTO, |
84 | AUTO = EVFLAG_AUTO, |
83 | NOENV = EVFLAG_NOENV, |
85 | NOENV = EVFLAG_NOENV, |
84 | FORKCHECK = EVFLAG_FORKCHECK, |
86 | FORKCHECK = EVFLAG_FORKCHECK, |
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87 | |
85 | SELECT = EVBACKEND_SELECT, |
88 | SELECT = EVBACKEND_SELECT, |
86 | POLL = EVBACKEND_POLL, |
89 | POLL = EVBACKEND_POLL, |
87 | EPOLL = EVBACKEND_EPOLL, |
90 | EPOLL = EVBACKEND_EPOLL, |
88 | KQUEUE = EVBACKEND_KQUEUE, |
91 | KQUEUE = EVBACKEND_KQUEUE, |
89 | DEVPOLL = EVBACKEND_DEVPOLL, |
92 | DEVPOLL = EVBACKEND_DEVPOLL, |
90 | PORT = EVBACKEND_PORT |
93 | PORT = EVBACKEND_PORT |
91 | }; |
94 | }; |
92 | |
95 | |
93 | enum |
96 | enum |
94 | { |
97 | { |
95 | NONBLOCK = EVLOOP_NONBLOCK, |
98 | NONBLOCK = EVLOOP_NONBLOCK, |
96 | ONESHOT = EVLOOP_ONESHOT |
99 | ONESHOT = EVLOOP_ONESHOT |
97 | }; |
100 | }; |
98 | |
101 | |
99 | enum how_t |
102 | enum how_t |
100 | { |
103 | { |
101 | ONE = EVUNLOOP_ONE, |
104 | ONE = EVUNLOOP_ONE, |
… | |
… | |
157 | return false; |
160 | return false; |
158 | #endif |
161 | #endif |
159 | } |
162 | } |
160 | |
163 | |
161 | #if EV_MULTIPLICITY |
164 | #if EV_MULTIPLICITY |
162 | bool operator == (struct ev_loop *other) const throw () |
165 | bool operator == (const EV_P) const throw () |
163 | { |
166 | { |
164 | return this->EV_AX == other; |
167 | return this->EV_AX == EV_A; |
165 | } |
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166 | |
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167 | bool operator != (struct ev_loop *other) const throw () |
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168 | { |
168 | } |
169 | return ! (*this == other); |
169 | |
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170 | bool operator != (const EV_P) const throw () |
170 | } |
171 | { |
171 | |
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172 | bool operator == (const struct ev_loop *other) const throw () |
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173 | { |
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174 | return this->EV_AX == other; |
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175 | } |
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176 | |
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177 | bool operator != (const struct ev_loop *other) const throw () |
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178 | { |
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179 | return (*this == other); |
172 | return (*this == EV_A); |
180 | } |
173 | } |
181 | |
174 | |
182 | operator struct ev_loop * () const throw () |
175 | operator struct ev_loop * () const throw () |
183 | { |
176 | { |
184 | return EV_AX; |
177 | return EV_AX; |
… | |
… | |
212 | #else |
205 | #else |
213 | ev_default_fork (); |
206 | ev_default_fork (); |
214 | #endif |
207 | #endif |
215 | } |
208 | } |
216 | |
209 | |
217 | unsigned int count () const throw () |
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218 | { |
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219 | return ev_loop_count (EV_AX); |
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220 | } |
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221 | |
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222 | unsigned int backend () const throw () |
210 | unsigned int backend () const throw () |
223 | { |
211 | { |
224 | return ev_backend (EV_AX); |
212 | return ev_backend (EV_AX); |
225 | } |
213 | } |
226 | |
214 | |
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237 | void unref () throw () |
225 | void unref () throw () |
238 | { |
226 | { |
239 | ev_unref (EV_AX); |
227 | ev_unref (EV_AX); |
240 | } |
228 | } |
241 | |
229 | |
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230 | #if EV_FEATURE_API |
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231 | unsigned int iteration () const throw () |
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232 | { |
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233 | return ev_iteration (EV_AX); |
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234 | } |
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235 | |
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236 | unsigned int depth () const throw () |
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237 | { |
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238 | return ev_depth (EV_AX); |
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239 | } |
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240 | |
242 | void set_io_collect_interval (tstamp interval) throw () |
241 | void set_io_collect_interval (tstamp interval) throw () |
243 | { |
242 | { |
244 | ev_set_io_collect_interval (EV_AX_ interval); |
243 | ev_set_io_collect_interval (EV_AX_ interval); |
245 | } |
244 | } |
246 | |
245 | |
247 | void set_timeout_collect_interval (tstamp interval) throw () |
246 | void set_timeout_collect_interval (tstamp interval) throw () |
248 | { |
247 | { |
249 | ev_set_timeout_collect_interval (EV_AX_ interval); |
248 | ev_set_timeout_collect_interval (EV_AX_ interval); |
250 | } |
249 | } |
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250 | #endif |
251 | |
251 | |
252 | // function callback |
252 | // function callback |
253 | void once (int fd, int events, tstamp timeout, void (*cb)(int, void *), void* arg = 0) throw () |
253 | void once (int fd, int events, tstamp timeout, void (*cb)(int, void *), void *arg = 0) throw () |
254 | { |
254 | { |
255 | ev_once (EV_AX_ fd, events, timeout, cb, arg); |
255 | ev_once (EV_AX_ fd, events, timeout, cb, arg); |
256 | } |
256 | } |
257 | |
257 | |
258 | // method callback |
258 | // method callback |
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260 | void once (int fd, int events, tstamp timeout, K *object) throw () |
260 | void once (int fd, int events, tstamp timeout, K *object) throw () |
261 | { |
261 | { |
262 | once (fd, events, timeout, method_thunk<K, method>, object); |
262 | once (fd, events, timeout, method_thunk<K, method>, object); |
263 | } |
263 | } |
264 | |
264 | |
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265 | // default method == operator () |
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266 | template<class K> |
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267 | void once (int fd, int events, tstamp timeout, K *object) throw () |
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268 | { |
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269 | once (fd, events, timeout, method_thunk<K, &K::operator ()>, object); |
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270 | } |
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271 | |
265 | template<class K, void (K::*method)(int)> |
272 | template<class K, void (K::*method)(int)> |
266 | static void method_thunk (int revents, void* arg) |
273 | static void method_thunk (int revents, void *arg) |
267 | { |
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268 | K *obj = static_cast<K *>(arg); |
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269 | (obj->*method) (revents); |
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270 | } |
274 | { |
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275 | static_cast<K *>(arg)->*method |
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276 | (revents); |
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277 | } |
271 | |
278 | |
272 | // const method callback |
279 | // no-argument method callback |
273 | template<class K, void (K::*method)(int) const> |
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274 | void once (int fd, int events, tstamp timeout, const K *object) throw () |
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275 | { |
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276 | once (fd, events, timeout, const_method_thunk<K, method>, object); |
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277 | } |
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278 | |
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279 | template<class K, void (K::*method)(int) const> |
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280 | static void const_method_thunk (int revents, void* arg) |
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281 | { |
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282 | K *obj = static_cast<K *>(arg); |
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283 | (obj->*method) (revents); |
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284 | } |
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285 | |
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286 | // simple method callback |
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287 | template<class K, void (K::*method)()> |
280 | template<class K, void (K::*method)()> |
288 | void once (int fd, int events, tstamp timeout, K *object) throw () |
281 | void once (int fd, int events, tstamp timeout, K *object) throw () |
289 | { |
282 | { |
290 | once (fd, events, timeout, method_noargs_thunk<K, method>, object); |
283 | once (fd, events, timeout, method_noargs_thunk<K, method>, object); |
291 | } |
284 | } |
292 | |
285 | |
293 | template<class K, void (K::*method)()> |
286 | template<class K, void (K::*method)()> |
294 | static void method_noargs_thunk (int revents, void* arg) |
287 | static void method_noargs_thunk (int revents, void *arg) |
295 | { |
288 | { |
296 | K *obj = static_cast<K *>(arg); |
289 | static_cast<K *>(arg)->*method |
297 | (obj->*method) (); |
290 | (); |
298 | } |
291 | } |
299 | |
292 | |
300 | // simpler function callback |
293 | // simpler function callback |
301 | template<void (*cb)(int)> |
294 | template<void (*cb)(int)> |
302 | void once (int fd, int events, tstamp timeout) throw () |
295 | void once (int fd, int events, tstamp timeout) throw () |
303 | { |
296 | { |
304 | once (fd, events, timeout, simpler_func_thunk<cb>); |
297 | once (fd, events, timeout, simpler_func_thunk<cb>); |
305 | } |
298 | } |
306 | |
299 | |
307 | template<void (*cb)(int)> |
300 | template<void (*cb)(int)> |
308 | static void simpler_func_thunk (int revents, void* arg) |
301 | static void simpler_func_thunk (int revents, void *arg) |
309 | { |
302 | { |
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303 | (*cb) |
310 | (*cb) (revents); |
304 | (revents); |
311 | } |
305 | } |
312 | |
306 | |
313 | // simplest function callback |
307 | // simplest function callback |
314 | template<void (*cb)()> |
308 | template<void (*cb)()> |
315 | void once (int fd, int events, tstamp timeout) throw () |
309 | void once (int fd, int events, tstamp timeout) throw () |
316 | { |
310 | { |
317 | once (fd, events, timeout, simplest_func_thunk<cb>); |
311 | once (fd, events, timeout, simplest_func_thunk<cb>); |
318 | } |
312 | } |
319 | |
313 | |
320 | template<void (*cb)()> |
314 | template<void (*cb)()> |
321 | static void simplest_func_thunk (int revents, void* arg) |
315 | static void simplest_func_thunk (int revents, void *arg) |
322 | { |
316 | { |
323 | (*cb) (); |
317 | (*cb) |
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318 | (); |
324 | } |
319 | } |
325 | |
320 | |
326 | void feed_fd_event (int fd, int revents) throw () |
321 | void feed_fd_event (int fd, int revents) throw () |
327 | { |
322 | { |
328 | ev_feed_fd_event (EV_AX_ fd, revents); |
323 | ev_feed_fd_event (EV_AX_ fd, revents); |
… | |
… | |
418 | struct base : ev_watcher |
413 | struct base : ev_watcher |
419 | { |
414 | { |
420 | #if EV_MULTIPLICITY |
415 | #if EV_MULTIPLICITY |
421 | EV_PX; |
416 | EV_PX; |
422 | |
417 | |
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418 | // loop set |
423 | void set (EV_PX) throw () |
419 | void set (EV_P) throw () |
424 | { |
420 | { |
425 | this->EV_A = EV_A; |
421 | this->EV_A = EV_A; |
426 | } |
422 | } |
427 | #endif |
423 | #endif |
428 | |
424 | |
… | |
… | |
432 | #endif |
428 | #endif |
433 | { |
429 | { |
434 | ev_init (this, 0); |
430 | ev_init (this, 0); |
435 | } |
431 | } |
436 | |
432 | |
437 | void set_ (void *data, void (*cb)(EV_P_ ev_watcher *w, int revents)) throw () |
433 | void set_ (const void *data, void (*cb)(EV_P_ ev_watcher *w, int revents)) throw () |
438 | { |
434 | { |
439 | this->data = data; |
435 | this->data = (void *)data; |
440 | ev_set_cb (static_cast<ev_watcher *>(this), cb); |
436 | ev_set_cb (static_cast<ev_watcher *>(this), cb); |
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437 | } |
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438 | |
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439 | // function callback |
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440 | template<void (*function)(watcher &w, int)> |
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441 | void set (void *data = 0) throw () |
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442 | { |
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443 | set_ (data, function_thunk<function>); |
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444 | } |
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445 | |
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446 | template<void (*function)(watcher &w, int)> |
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447 | static void function_thunk (EV_P_ ev_watcher *w, int revents) |
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448 | { |
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449 | function |
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450 | (*static_cast<watcher *>(w), revents); |
441 | } |
451 | } |
442 | |
452 | |
443 | // method callback |
453 | // method callback |
444 | template<class K, void (K::*method)(watcher &w, int)> |
454 | template<class K, void (K::*method)(watcher &w, int)> |
445 | void set (K *object) throw () |
455 | void set (K *object) throw () |
446 | { |
456 | { |
447 | set_ (object, method_thunk<K, method>); |
457 | set_ (object, method_thunk<K, method>); |
448 | } |
458 | } |
449 | |
459 | |
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460 | // default method == operator () |
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461 | template<class K> |
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462 | void set (K *object) throw () |
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463 | { |
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464 | set_ (object, method_thunk<K, &K::operator ()>); |
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465 | } |
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466 | |
450 | template<class K, void (K::*method)(watcher &w, int)> |
467 | template<class K, void (K::*method)(watcher &w, int)> |
451 | static void method_thunk (EV_P_ ev_watcher *w, int revents) |
468 | static void method_thunk (EV_P_ ev_watcher *w, int revents) |
452 | { |
469 | { |
453 | K *obj = static_cast<K *>(w->data); |
470 | (static_cast<K *>(w->data)->*method) |
454 | (obj->*method) (*static_cast<watcher *>(w), revents); |
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455 | } |
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456 | |
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457 | // const method callback |
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458 | template<class K, void (K::*method)(watcher &w, int) const> |
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459 | void set (const K *object) throw () |
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460 | { |
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461 | set_ (object, const_method_thunk<K, method>); |
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462 | } |
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463 | |
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464 | template<class K, void (K::*method)(watcher &w, int) const> |
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465 | static void const_method_thunk (EV_P_ ev_watcher *w, int revents) |
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466 | { |
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467 | K *obj = static_cast<K *>(w->data); |
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468 | (static_cast<K *>(w->data)->*method) (*static_cast<watcher *>(w), revents); |
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469 | } |
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470 | |
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471 | // function callback |
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472 | template<void (*function)(watcher &w, int)> |
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473 | void set (void *data = 0) throw () |
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474 | { |
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475 | set_ (data, function_thunk<function>); |
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476 | } |
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477 | |
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478 | template<void (*function)(watcher &w, int)> |
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479 | static void function_thunk (EV_P_ ev_watcher *w, int revents) |
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480 | { |
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481 | function (*static_cast<watcher *>(w), revents); |
471 | (*static_cast<watcher *>(w), revents); |
482 | } |
472 | } |
483 | |
473 | |
484 | // simple callback |
474 | // no-argument callback |
485 | template<class K, void (K::*method)()> |
475 | template<class K, void (K::*method)()> |
486 | void set (K *object) throw () |
476 | void set (K *object) throw () |
487 | { |
477 | { |
488 | set_ (object, method_noargs_thunk<K, method>); |
478 | set_ (object, method_noargs_thunk<K, method>); |
489 | } |
479 | } |
490 | |
480 | |
491 | template<class K, void (K::*method)()> |
481 | template<class K, void (K::*method)()> |
492 | static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents) |
482 | static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents) |
493 | { |
483 | { |
494 | K *obj = static_cast<K *>(w->data); |
484 | (static_cast<K *>(w->data)->*method) |
495 | (obj->*method) (); |
485 | (); |
496 | } |
486 | } |
497 | |
487 | |
498 | void operator ()(int events = EV_UNDEF) |
488 | void operator ()(int events = EV_UNDEF) |
499 | { |
489 | { |
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490 | return |
500 | return ev_cb (static_cast<ev_watcher *>(this)) |
491 | ev_cb (static_cast<ev_watcher *>(this)) |
501 | (static_cast<ev_watcher *>(this), events); |
492 | (static_cast<ev_watcher *>(this), events); |
502 | } |
493 | } |
503 | |
494 | |
504 | bool is_active () const throw () |
495 | bool is_active () const throw () |
505 | { |
496 | { |
506 | return ev_is_active (static_cast<const ev_watcher *>(this)); |
497 | return ev_is_active (static_cast<const ev_watcher *>(this)); |
… | |
… | |
652 | |
643 | |
653 | void again () throw () |
644 | void again () throw () |
654 | { |
645 | { |
655 | ev_timer_again (EV_A_ static_cast<ev_timer *>(this)); |
646 | ev_timer_again (EV_A_ static_cast<ev_timer *>(this)); |
656 | } |
647 | } |
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648 | |
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649 | ev_tstamp remaining () |
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650 | { |
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651 | return ev_timer_remaining (EV_A_ static_cast<ev_timer *>(this)); |
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652 | } |
657 | EV_END_WATCHER (timer, timer) |
653 | EV_END_WATCHER (timer, timer) |
658 | |
654 | |
659 | #if EV_PERIODIC_ENABLE |
655 | #if EV_PERIODIC_ENABLE |
660 | EV_BEGIN_WATCHER (periodic, periodic) |
656 | EV_BEGIN_WATCHER (periodic, periodic) |
661 | void set (ev_tstamp at, ev_tstamp interval = 0.) throw () |
657 | void set (ev_tstamp at, ev_tstamp interval = 0.) throw () |
… | |
… | |
677 | ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this)); |
673 | ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this)); |
678 | } |
674 | } |
679 | EV_END_WATCHER (periodic, periodic) |
675 | EV_END_WATCHER (periodic, periodic) |
680 | #endif |
676 | #endif |
681 | |
677 | |
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678 | #if EV_SIGNAL_ENABLE |
682 | EV_BEGIN_WATCHER (sig, signal) |
679 | EV_BEGIN_WATCHER (sig, signal) |
683 | void set (int signum) throw () |
680 | void set (int signum) throw () |
684 | { |
681 | { |
685 | int active = is_active (); |
682 | int active = is_active (); |
686 | if (active) stop (); |
683 | if (active) stop (); |
… | |
… | |
692 | { |
689 | { |
693 | set (signum); |
690 | set (signum); |
694 | start (); |
691 | start (); |
695 | } |
692 | } |
696 | EV_END_WATCHER (sig, signal) |
693 | EV_END_WATCHER (sig, signal) |
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694 | #endif |
697 | |
695 | |
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696 | #if EV_CHILD_ENABLE |
698 | EV_BEGIN_WATCHER (child, child) |
697 | EV_BEGIN_WATCHER (child, child) |
699 | void set (int pid, int trace = 0) throw () |
698 | void set (int pid, int trace = 0) throw () |
700 | { |
699 | { |
701 | int active = is_active (); |
700 | int active = is_active (); |
702 | if (active) stop (); |
701 | if (active) stop (); |
… | |
… | |
708 | { |
707 | { |
709 | set (pid, trace); |
708 | set (pid, trace); |
710 | start (); |
709 | start (); |
711 | } |
710 | } |
712 | EV_END_WATCHER (child, child) |
711 | EV_END_WATCHER (child, child) |
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712 | #endif |
713 | |
713 | |
714 | #if EV_STAT_ENABLE |
714 | #if EV_STAT_ENABLE |
715 | EV_BEGIN_WATCHER (stat, stat) |
715 | EV_BEGIN_WATCHER (stat, stat) |
716 | void set (const char *path, ev_tstamp interval = 0.) throw () |
716 | void set (const char *path, ev_tstamp interval = 0.) throw () |
717 | { |
717 | { |
… | |
… | |
733 | ev_stat_stat (EV_A_ static_cast<ev_stat *>(this)); |
733 | ev_stat_stat (EV_A_ static_cast<ev_stat *>(this)); |
734 | } |
734 | } |
735 | EV_END_WATCHER (stat, stat) |
735 | EV_END_WATCHER (stat, stat) |
736 | #endif |
736 | #endif |
737 | |
737 | |
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738 | #if EV_IDLE_ENABLE |
738 | EV_BEGIN_WATCHER (idle, idle) |
739 | EV_BEGIN_WATCHER (idle, idle) |
739 | void set () throw () { } |
740 | void set () throw () { } |
740 | EV_END_WATCHER (idle, idle) |
741 | EV_END_WATCHER (idle, idle) |
|
|
742 | #endif |
741 | |
743 | |
|
|
744 | #if EV_PREPARE_ENABLE |
742 | EV_BEGIN_WATCHER (prepare, prepare) |
745 | EV_BEGIN_WATCHER (prepare, prepare) |
743 | void set () throw () { } |
746 | void set () throw () { } |
744 | EV_END_WATCHER (prepare, prepare) |
747 | EV_END_WATCHER (prepare, prepare) |
|
|
748 | #endif |
745 | |
749 | |
|
|
750 | #if EV_CHECK_ENABLE |
746 | EV_BEGIN_WATCHER (check, check) |
751 | EV_BEGIN_WATCHER (check, check) |
747 | void set () throw () { } |
752 | void set () throw () { } |
748 | EV_END_WATCHER (check, check) |
753 | EV_END_WATCHER (check, check) |
|
|
754 | #endif |
749 | |
755 | |
750 | #if EV_EMBED_ENABLE |
756 | #if EV_EMBED_ENABLE |
751 | EV_BEGIN_WATCHER (embed, embed) |
757 | EV_BEGIN_WATCHER (embed, embed) |
752 | void set (struct ev_loop *embedded_loop) throw () |
758 | void set (struct ev_loop *embedded_loop) throw () |
753 | { |
759 | { |
… | |
… | |
776 | EV_END_WATCHER (fork, fork) |
782 | EV_END_WATCHER (fork, fork) |
777 | #endif |
783 | #endif |
778 | |
784 | |
779 | #if EV_ASYNC_ENABLE |
785 | #if EV_ASYNC_ENABLE |
780 | EV_BEGIN_WATCHER (async, async) |
786 | EV_BEGIN_WATCHER (async, async) |
781 | void set () throw () { } |
|
|
782 | |
|
|
783 | void send () throw () |
787 | void send () throw () |
784 | { |
788 | { |
785 | ev_async_send (EV_A_ static_cast<ev_async *>(this)); |
789 | ev_async_send (EV_A_ static_cast<ev_async *>(this)); |
786 | } |
790 | } |
787 | |
791 | |