1 /* 2 * libev simple C++ wrapper classes 3 * 4 * Copyright (c) 2007,2008,2010,2018,2020 Marc Alexander Lehmann <libev@schmorp.de> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without modifica- 8 * tion, are permitted provided that the following conditions are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright notice, 11 * this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 25 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 26 * OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Alternatively, the contents of this file may be used under the terms of 29 * the GNU General Public License ("GPL") version 2 or any later version, 30 * in which case the provisions of the GPL are applicable instead of 31 * the above. If you wish to allow the use of your version of this file 32 * only under the terms of the GPL and not to allow others to use your 33 * version of this file under the BSD license, indicate your decision 34 * by deleting the provisions above and replace them with the notice 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 37 * either the BSD or the GPL. 38 */ 39 40 #ifndef EVPP_H__ 41 #define EVPP_H__ 42 43 #ifdef EV_H 44 # include EV_H 45 #else 46 # include "ev.h" 47 #endif 48 49 #ifndef EV_USE_STDEXCEPT 50 # define EV_USE_STDEXCEPT 1 51 #endif 52 53 #if EV_USE_STDEXCEPT 54 # include <stdexcept> 55 #endif 56 57 namespace ev { 58 59 typedef ev_tstamp tstamp; 60 61 enum { 62 UNDEF = EV_UNDEF, 63 NONE = EV_NONE, 64 READ = EV_READ, 65 WRITE = EV_WRITE, 66 #if EV_COMPAT3 67 TIMEOUT = EV_TIMEOUT, 68 #endif 69 TIMER = EV_TIMER, 70 PERIODIC = EV_PERIODIC, 71 SIGNAL = EV_SIGNAL, 72 CHILD = EV_CHILD, 73 STAT = EV_STAT, 74 IDLE = EV_IDLE, 75 CHECK = EV_CHECK, 76 PREPARE = EV_PREPARE, 77 FORK = EV_FORK, 78 ASYNC = EV_ASYNC, 79 EMBED = EV_EMBED, 80 # undef ERROR // some systems stupidly #define ERROR 81 ERROR = EV_ERROR 82 }; 83 84 enum 85 { 86 AUTO = EVFLAG_AUTO, 87 NOENV = EVFLAG_NOENV, 88 FORKCHECK = EVFLAG_FORKCHECK, 89 90 SELECT = EVBACKEND_SELECT, 91 POLL = EVBACKEND_POLL, 92 EPOLL = EVBACKEND_EPOLL, 93 KQUEUE = EVBACKEND_KQUEUE, 94 DEVPOLL = EVBACKEND_DEVPOLL, 95 PORT = EVBACKEND_PORT 96 }; 97 98 enum 99 { 100 #if EV_COMPAT3 101 NONBLOCK = EVLOOP_NONBLOCK, 102 ONESHOT = EVLOOP_ONESHOT, 103 #endif 104 NOWAIT = EVRUN_NOWAIT, 105 ONCE = EVRUN_ONCE 106 }; 107 108 enum how_t 109 { 110 ONE = EVBREAK_ONE, 111 ALL = EVBREAK_ALL 112 }; 113 114 struct bad_loop 115 #if EV_USE_STDEXCEPT 116 : std::exception 117 #endif 118 { 119 #if EV_USE_STDEXCEPT whatbad_loop120 const char *what () const EV_NOEXCEPT 121 { 122 return "libev event loop cannot be initialized, bad value of LIBEV_FLAGS?"; 123 } 124 #endif 125 }; 126 127 #ifdef EV_AX 128 # undef EV_AX 129 #endif 130 131 #ifdef EV_AX_ 132 # undef EV_AX_ 133 #endif 134 135 #if EV_MULTIPLICITY 136 # define EV_AX raw_loop 137 # define EV_AX_ raw_loop, 138 #else 139 # define EV_AX 140 # define EV_AX_ 141 #endif 142 143 struct loop_ref 144 { loop_refloop_ref145 loop_ref (EV_P) EV_NOEXCEPT 146 #if EV_MULTIPLICITY 147 : EV_AX (EV_A) 148 #endif 149 { 150 } 151 152 bool operator == (const loop_ref &other) const EV_NOEXCEPT 153 { 154 #if EV_MULTIPLICITY 155 return EV_AX == other.EV_AX; 156 #else 157 return true; 158 #endif 159 } 160 161 bool operator != (const loop_ref &other) const EV_NOEXCEPT 162 { 163 #if EV_MULTIPLICITY 164 return ! (*this == other); 165 #else 166 return false; 167 #endif 168 } 169 170 #if EV_MULTIPLICITY 171 bool operator == (const EV_P) const EV_NOEXCEPT 172 { 173 return this->EV_AX == EV_A; 174 } 175 176 bool operator != (const EV_P) const EV_NOEXCEPT 177 { 178 return ! (*this == EV_A); 179 } 180 181 operator struct ev_loop * () const EV_NOEXCEPT 182 { 183 return EV_AX; 184 } 185 186 operator const struct ev_loop * () const EV_NOEXCEPT 187 { 188 return EV_AX; 189 } 190 is_defaultloop_ref191 bool is_default () const EV_NOEXCEPT 192 { 193 return EV_AX == ev_default_loop (0); 194 } 195 #endif 196 197 #if EV_COMPAT3 198 void loop (int flags = 0) 199 { 200 ev_run (EV_AX_ flags); 201 } 202 203 void unloop (how_t how = ONE) EV_NOEXCEPT 204 { 205 ev_break (EV_AX_ how); 206 } 207 #endif 208 209 void run (int flags = 0) 210 { 211 ev_run (EV_AX_ flags); 212 } 213 214 void break_loop (how_t how = ONE) EV_NOEXCEPT 215 { 216 ev_break (EV_AX_ how); 217 } 218 post_forkloop_ref219 void post_fork () EV_NOEXCEPT 220 { 221 ev_loop_fork (EV_AX); 222 } 223 backendloop_ref224 unsigned int backend () const EV_NOEXCEPT 225 { 226 return ev_backend (EV_AX); 227 } 228 nowloop_ref229 tstamp now () const EV_NOEXCEPT 230 { 231 return ev_now (EV_AX); 232 } 233 refloop_ref234 void ref () EV_NOEXCEPT 235 { 236 ev_ref (EV_AX); 237 } 238 unrefloop_ref239 void unref () EV_NOEXCEPT 240 { 241 ev_unref (EV_AX); 242 } 243 244 #if EV_FEATURE_API iterationloop_ref245 unsigned int iteration () const EV_NOEXCEPT 246 { 247 return ev_iteration (EV_AX); 248 } 249 depthloop_ref250 unsigned int depth () const EV_NOEXCEPT 251 { 252 return ev_depth (EV_AX); 253 } 254 set_io_collect_intervalloop_ref255 void set_io_collect_interval (tstamp interval) EV_NOEXCEPT 256 { 257 ev_set_io_collect_interval (EV_AX_ interval); 258 } 259 set_timeout_collect_intervalloop_ref260 void set_timeout_collect_interval (tstamp interval) EV_NOEXCEPT 261 { 262 ev_set_timeout_collect_interval (EV_AX_ interval); 263 } 264 #endif 265 266 // function callback 267 void once (int fd, int events, tstamp timeout, void (*cb)(int, void *), void *arg = 0) EV_NOEXCEPT 268 { 269 ev_once (EV_AX_ fd, events, timeout, cb, arg); 270 } 271 272 // method callback 273 template<class K, void (K::*method)(int)> onceloop_ref274 void once (int fd, int events, tstamp timeout, K *object) EV_NOEXCEPT 275 { 276 once (fd, events, timeout, method_thunk<K, method>, object); 277 } 278 279 // default method == operator () 280 template<class K> onceloop_ref281 void once (int fd, int events, tstamp timeout, K *object) EV_NOEXCEPT 282 { 283 once (fd, events, timeout, method_thunk<K, &K::operator ()>, object); 284 } 285 286 template<class K, void (K::*method)(int)> method_thunkloop_ref287 static void method_thunk (int revents, void *arg) 288 { 289 (static_cast<K *>(arg)->*method) 290 (revents); 291 } 292 293 // no-argument method callback 294 template<class K, void (K::*method)()> onceloop_ref295 void once (int fd, int events, tstamp timeout, K *object) EV_NOEXCEPT 296 { 297 once (fd, events, timeout, method_noargs_thunk<K, method>, object); 298 } 299 300 template<class K, void (K::*method)()> method_noargs_thunkloop_ref301 static void method_noargs_thunk (int revents, void *arg) 302 { 303 (static_cast<K *>(arg)->*method) 304 (); 305 } 306 307 // simpler function callback 308 template<void (*cb)(int)> onceloop_ref309 void once (int fd, int events, tstamp timeout) EV_NOEXCEPT 310 { 311 once (fd, events, timeout, simpler_func_thunk<cb>); 312 } 313 314 template<void (*cb)(int)> simpler_func_thunkloop_ref315 static void simpler_func_thunk (int revents, void *arg) 316 { 317 (*cb) 318 (revents); 319 } 320 321 // simplest function callback 322 template<void (*cb)()> onceloop_ref323 void once (int fd, int events, tstamp timeout) EV_NOEXCEPT 324 { 325 once (fd, events, timeout, simplest_func_thunk<cb>); 326 } 327 328 template<void (*cb)()> simplest_func_thunkloop_ref329 static void simplest_func_thunk (int revents, void *arg) 330 { 331 (*cb) 332 (); 333 } 334 feed_fd_eventloop_ref335 void feed_fd_event (int fd, int revents) EV_NOEXCEPT 336 { 337 ev_feed_fd_event (EV_AX_ fd, revents); 338 } 339 feed_signal_eventloop_ref340 void feed_signal_event (int signum) EV_NOEXCEPT 341 { 342 ev_feed_signal_event (EV_AX_ signum); 343 } 344 345 #if EV_MULTIPLICITY 346 struct ev_loop* EV_AX; 347 #endif 348 349 }; 350 351 #if EV_MULTIPLICITY 352 struct dynamic_loop : loop_ref 353 { 354 355 dynamic_loop (unsigned int flags = AUTO) loop_refdynamic_loop356 : loop_ref (ev_loop_new (flags)) 357 { 358 if (!EV_AX) 359 throw bad_loop (); 360 } 361 ~dynamic_loopdynamic_loop362 ~dynamic_loop () EV_NOEXCEPT 363 { 364 ev_loop_destroy (EV_AX); 365 EV_AX = 0; 366 } 367 368 private: 369 370 dynamic_loop (const dynamic_loop &); 371 372 dynamic_loop & operator= (const dynamic_loop &); 373 374 }; 375 #endif 376 377 struct default_loop : loop_ref 378 { 379 default_loop (unsigned int flags = AUTO) 380 #if EV_MULTIPLICITY loop_refdefault_loop381 : loop_ref (ev_default_loop (flags)) 382 #endif 383 { 384 if ( 385 #if EV_MULTIPLICITY 386 !EV_AX 387 #else 388 !ev_default_loop (flags) 389 #endif 390 ) 391 throw bad_loop (); 392 } 393 394 private: 395 default_loop (const default_loop &); 396 default_loop &operator = (const default_loop &); 397 }; 398 get_default_loop()399 inline loop_ref get_default_loop () EV_NOEXCEPT 400 { 401 #if EV_MULTIPLICITY 402 return ev_default_loop (0); 403 #else 404 return loop_ref (); 405 #endif 406 } 407 408 #undef EV_AX 409 #undef EV_AX_ 410 411 #undef EV_PX 412 #undef EV_PX_ 413 #if EV_MULTIPLICITY 414 # define EV_PX loop_ref EV_A 415 # define EV_PX_ loop_ref EV_A_ 416 #else 417 # define EV_PX 418 # define EV_PX_ 419 #endif 420 421 template<class ev_watcher, class watcher> 422 struct base : ev_watcher 423 { 424 // scoped pause/unpause of a watcher 425 struct freeze_guard 426 { 427 watcher &w; 428 bool active; 429 freeze_guardbase::freeze_guard430 freeze_guard (watcher *self) EV_NOEXCEPT 431 : w (*self), active (w.is_active ()) 432 { 433 if (active) w.stop (); 434 } 435 ~freeze_guardbase::freeze_guard436 ~freeze_guard () 437 { 438 if (active) w.start (); 439 } 440 }; 441 442 #if EV_MULTIPLICITY 443 EV_PX; 444 445 // loop set setbase446 void set (EV_P) EV_NOEXCEPT 447 { 448 this->EV_A = EV_A; 449 } 450 #endif 451 basebase452 base (EV_PX) EV_NOEXCEPT 453 #if EV_MULTIPLICITY 454 : EV_A (EV_A) 455 #endif 456 { 457 ev_init (this, 0); 458 } 459 set_base460 void set_ (const void *data, void (*cb)(EV_P_ ev_watcher *w, int revents)) EV_NOEXCEPT 461 { 462 this->data = (void *)data; 463 ev_set_cb (static_cast<ev_watcher *>(this), cb); 464 } 465 466 // function callback 467 template<void (*function)(watcher &w, int)> 468 void set (void *data = 0) EV_NOEXCEPT 469 { 470 set_ (data, function_thunk<function>); 471 } 472 473 template<void (*function)(watcher &w, int)> function_thunkbase474 static void function_thunk (EV_P_ ev_watcher *w, int revents) 475 { 476 function 477 (*static_cast<watcher *>(w), revents); 478 } 479 480 // method callback 481 template<class K, void (K::*method)(watcher &w, int)> setbase482 void set (K *object) EV_NOEXCEPT 483 { 484 set_ (object, method_thunk<K, method>); 485 } 486 487 // default method == operator () 488 template<class K> setbase489 void set (K *object) EV_NOEXCEPT 490 { 491 set_ (object, method_thunk<K, &K::operator ()>); 492 } 493 494 template<class K, void (K::*method)(watcher &w, int)> method_thunkbase495 static void method_thunk (EV_P_ ev_watcher *w, int revents) 496 { 497 (static_cast<K *>(w->data)->*method) 498 (*static_cast<watcher *>(w), revents); 499 } 500 501 // no-argument callback 502 template<class K, void (K::*method)()> setbase503 void set (K *object) EV_NOEXCEPT 504 { 505 set_ (object, method_noargs_thunk<K, method>); 506 } 507 508 template<class K, void (K::*method)()> method_noargs_thunkbase509 static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents) 510 { 511 (static_cast<K *>(w->data)->*method) 512 (); 513 } 514 operatorbase515 void operator ()(int events = EV_UNDEF) 516 { 517 return 518 ev_cb (static_cast<ev_watcher *>(this)) 519 (static_cast<ev_watcher *>(this), events); 520 } 521 is_activebase522 bool is_active () const EV_NOEXCEPT 523 { 524 return ev_is_active (static_cast<const ev_watcher *>(this)); 525 } 526 is_pendingbase527 bool is_pending () const EV_NOEXCEPT 528 { 529 return ev_is_pending (static_cast<const ev_watcher *>(this)); 530 } 531 feed_eventbase532 void feed_event (int revents) EV_NOEXCEPT 533 { 534 ev_feed_event (EV_A_ static_cast<ev_watcher *>(this), revents); 535 } 536 }; 537 now(EV_P)538 inline tstamp now (EV_P) EV_NOEXCEPT 539 { 540 return ev_now (EV_A); 541 } 542 delay(tstamp interval)543 inline void delay (tstamp interval) EV_NOEXCEPT 544 { 545 ev_sleep (interval); 546 } 547 version_major()548 inline int version_major () EV_NOEXCEPT 549 { 550 return ev_version_major (); 551 } 552 version_minor()553 inline int version_minor () EV_NOEXCEPT 554 { 555 return ev_version_minor (); 556 } 557 supported_backends()558 inline unsigned int supported_backends () EV_NOEXCEPT 559 { 560 return ev_supported_backends (); 561 } 562 recommended_backends()563 inline unsigned int recommended_backends () EV_NOEXCEPT 564 { 565 return ev_recommended_backends (); 566 } 567 embeddable_backends()568 inline unsigned int embeddable_backends () EV_NOEXCEPT 569 { 570 return ev_embeddable_backends (); 571 } 572 set_allocator(void * (* cb)(void * ptr,long size)EV_NOEXCEPT)573 inline void set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT 574 { 575 ev_set_allocator (cb); 576 } 577 set_syserr_cb(void (* cb)(const char * msg)EV_NOEXCEPT)578 inline void set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT 579 { 580 ev_set_syserr_cb (cb); 581 } 582 583 #if EV_MULTIPLICITY 584 #define EV_CONSTRUCT(cppstem,cstem) \ 585 (EV_PX = get_default_loop ()) EV_NOEXCEPT \ 586 : base<ev_ ## cstem, cppstem> (EV_A) \ 587 { \ 588 } 589 #else 590 #define EV_CONSTRUCT(cppstem,cstem) \ 591 () EV_NOEXCEPT \ 592 { \ 593 } 594 #endif 595 596 /* using a template here would require quite a few more lines, 597 * so a macro solution was chosen */ 598 #define EV_BEGIN_WATCHER(cppstem,cstem) \ 599 \ 600 struct cppstem : base<ev_ ## cstem, cppstem> \ 601 { \ 602 void start () EV_NOEXCEPT \ 603 { \ 604 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 605 } \ 606 \ 607 void stop () EV_NOEXCEPT \ 608 { \ 609 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 610 } \ 611 \ 612 cppstem EV_CONSTRUCT(cppstem,cstem) \ 613 \ 614 ~cppstem () EV_NOEXCEPT \ 615 { \ 616 stop (); \ 617 } \ 618 \ 619 using base<ev_ ## cstem, cppstem>::set; \ 620 \ 621 private: \ 622 \ 623 cppstem (const cppstem &o); \ 624 \ 625 cppstem &operator =(const cppstem &o); \ 626 \ 627 public: 628 629 #define EV_END_WATCHER(cppstem,cstem) \ 630 }; 631 EV_BEGIN_WATCHER(io,io)632 EV_BEGIN_WATCHER (io, io) 633 void set (int fd, int events) EV_NOEXCEPT 634 { 635 freeze_guard freeze (this); 636 ev_io_set (static_cast<ev_io *>(this), fd, events); 637 } 638 set(int events)639 void set (int events) EV_NOEXCEPT 640 { 641 freeze_guard freeze (this); 642 ev_io_modify (static_cast<ev_io *>(this), events); 643 } 644 start(int fd,int events)645 void start (int fd, int events) EV_NOEXCEPT 646 { 647 set (fd, events); 648 start (); 649 } EV_END_WATCHER(io,io)650 EV_END_WATCHER (io, io) 651 652 EV_BEGIN_WATCHER (timer, timer) 653 void set (ev_tstamp after, ev_tstamp repeat = 0.) EV_NOEXCEPT 654 { 655 freeze_guard freeze (this); 656 ev_timer_set (static_cast<ev_timer *>(this), after, repeat); 657 } 658 659 void start (ev_tstamp after, ev_tstamp repeat = 0.) EV_NOEXCEPT 660 { 661 set (after, repeat); 662 start (); 663 } 664 again()665 void again () EV_NOEXCEPT 666 { 667 ev_timer_again (EV_A_ static_cast<ev_timer *>(this)); 668 } 669 remaining()670 ev_tstamp remaining () 671 { 672 return ev_timer_remaining (EV_A_ static_cast<ev_timer *>(this)); 673 } EV_END_WATCHER(timer,timer)674 EV_END_WATCHER (timer, timer) 675 676 #if EV_PERIODIC_ENABLE 677 EV_BEGIN_WATCHER (periodic, periodic) 678 void set (ev_tstamp at, ev_tstamp interval = 0.) EV_NOEXCEPT 679 { 680 freeze_guard freeze (this); 681 ev_periodic_set (static_cast<ev_periodic *>(this), at, interval, 0); 682 } 683 684 void start (ev_tstamp at, ev_tstamp interval = 0.) EV_NOEXCEPT 685 { 686 set (at, interval); 687 start (); 688 } 689 again()690 void again () EV_NOEXCEPT 691 { 692 ev_periodic_again (EV_A_ static_cast<ev_periodic *>(this)); 693 } EV_END_WATCHER(periodic,periodic)694 EV_END_WATCHER (periodic, periodic) 695 #endif 696 697 #if EV_SIGNAL_ENABLE 698 EV_BEGIN_WATCHER (sig, signal) 699 void set (int signum) EV_NOEXCEPT 700 { 701 freeze_guard freeze (this); 702 ev_signal_set (static_cast<ev_signal *>(this), signum); 703 } 704 start(int signum)705 void start (int signum) EV_NOEXCEPT 706 { 707 set (signum); 708 start (); 709 } EV_END_WATCHER(sig,signal)710 EV_END_WATCHER (sig, signal) 711 #endif 712 713 #if EV_CHILD_ENABLE 714 EV_BEGIN_WATCHER (child, child) 715 void set (int pid, int trace = 0) EV_NOEXCEPT 716 { 717 freeze_guard freeze (this); 718 ev_child_set (static_cast<ev_child *>(this), pid, trace); 719 } 720 721 void start (int pid, int trace = 0) EV_NOEXCEPT 722 { 723 set (pid, trace); 724 start (); 725 } EV_END_WATCHER(child,child)726 EV_END_WATCHER (child, child) 727 #endif 728 729 #if EV_STAT_ENABLE 730 EV_BEGIN_WATCHER (stat, stat) 731 void set (const char *path, ev_tstamp interval = 0.) EV_NOEXCEPT 732 { 733 freeze_guard freeze (this); 734 ev_stat_set (static_cast<ev_stat *>(this), path, interval); 735 } 736 737 void start (const char *path, ev_tstamp interval = 0.) EV_NOEXCEPT 738 { 739 stop (); 740 set (path, interval); 741 start (); 742 } 743 update()744 void update () EV_NOEXCEPT 745 { 746 ev_stat_stat (EV_A_ static_cast<ev_stat *>(this)); 747 } EV_END_WATCHER(stat,stat)748 EV_END_WATCHER (stat, stat) 749 #endif 750 751 #if EV_IDLE_ENABLE 752 EV_BEGIN_WATCHER (idle, idle) 753 void set () EV_NOEXCEPT { } EV_END_WATCHER(idle,idle)754 EV_END_WATCHER (idle, idle) 755 #endif 756 757 #if EV_PREPARE_ENABLE 758 EV_BEGIN_WATCHER (prepare, prepare) 759 void set () EV_NOEXCEPT { } EV_END_WATCHER(prepare,prepare)760 EV_END_WATCHER (prepare, prepare) 761 #endif 762 763 #if EV_CHECK_ENABLE 764 EV_BEGIN_WATCHER (check, check) 765 void set () EV_NOEXCEPT { } EV_END_WATCHER(check,check)766 EV_END_WATCHER (check, check) 767 #endif 768 769 #if EV_EMBED_ENABLE 770 EV_BEGIN_WATCHER (embed, embed) 771 void set_embed (struct ev_loop *embedded_loop) EV_NOEXCEPT 772 { 773 freeze_guard freeze (this); 774 ev_embed_set (static_cast<ev_embed *>(this), embedded_loop); 775 } 776 start(struct ev_loop * embedded_loop)777 void start (struct ev_loop *embedded_loop) EV_NOEXCEPT 778 { 779 set (embedded_loop); 780 start (); 781 } 782 sweep()783 void sweep () 784 { 785 ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this)); 786 } EV_END_WATCHER(embed,embed)787 EV_END_WATCHER (embed, embed) 788 #endif 789 790 #if EV_FORK_ENABLE 791 EV_BEGIN_WATCHER (fork, fork) 792 void set () EV_NOEXCEPT { } EV_END_WATCHER(fork,fork)793 EV_END_WATCHER (fork, fork) 794 #endif 795 796 #if EV_ASYNC_ENABLE 797 EV_BEGIN_WATCHER (async, async) 798 void send () EV_NOEXCEPT 799 { 800 ev_async_send (EV_A_ static_cast<ev_async *>(this)); 801 } 802 async_pending()803 bool async_pending () EV_NOEXCEPT 804 { 805 return ev_async_pending (static_cast<ev_async *>(this)); 806 } 807 EV_END_WATCHER (async, async) 808 #endif 809 810 #undef EV_PX 811 #undef EV_PX_ 812 #undef EV_CONSTRUCT 813 #undef EV_BEGIN_WATCHER 814 #undef EV_END_WATCHER 815 } 816 817 #endif 818 819