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Comparing libev/ev.h (file contents):
Revision 1.89 by root, Mon Dec 24 03:41:38 2007 UTC vs.
Revision 1.92 by root, Thu Jan 31 13:10:56 2008 UTC

1/* 1/*
2 * libev native API header
3 *
2 * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
3 * All rights reserved. 5 * All rights reserved.
4 * 6 *
5 * Redistribution and use in source and binary forms, with or without 7 * Redistribution and use in source and binary forms, with or without modifica-
6 * modification, are permitted provided that the following conditions are 8 * tion, are permitted provided that the following conditions are met:
7 * 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.
8 * 27 *
9 * * Redistributions of source code must retain the above copyright 28 * Alternatively, the contents of this file may be used under the terms of
10 * notice, this list of conditions and the following disclaimer. 29 * the GNU General Public License ("GPL") version 2 or any later version,
11 * 30 * in which case the provisions of the GPL are applicable instead of
12 * * Redistributions in binary form must reproduce the above 31 * the above. If you wish to allow the use of your version of this file
13 * copyright notice, this list of conditions and the following 32 * only under the terms of the GPL and not to allow others to use your
14 * disclaimer in the documentation and/or other materials provided 33 * version of this file under the BSD license, indicate your decision
15 * with the distribution. 34 * by deleting the provisions above and replace them with the notice
16 * 35 * and other provisions required by the GPL. If you do not delete the
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 36 * provisions above, a recipient may use your version of this file under
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 37 * either the BSD or the GPL.
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */ 38 */
29 39
30#ifndef EV_H__ 40#ifndef EV_H__
31#define EV_H__ 41#define EV_H__
32 42
… …
64# define EV_FORK_ENABLE 1 74# define EV_FORK_ENABLE 1
65#endif 75#endif
66 76
67#ifndef EV_EMBED_ENABLE 77#ifndef EV_EMBED_ENABLE
68# define EV_EMBED_ENABLE 1 78# define EV_EMBED_ENABLE 1
79#endif
80
81#ifndef EV_ASYNC_ENABLE
82# define EV_ASYNC_ENABLE 1
83#endif
84
85#ifndef EV_ATOMIC_T
86# include <signal.h>
87# define EV_ATOMIC_T sig_atomic_t volatile
69#endif 88#endif
70 89
71/*****************************************************************************/ 90/*****************************************************************************/
72 91
73#if EV_STAT_ENABLE 92#if EV_STAT_ENABLE
… …
108#define EV_IDLE 0x00002000L /* event loop is idling */ 127#define EV_IDLE 0x00002000L /* event loop is idling */
109#define EV_PREPARE 0x00004000L /* event loop about to poll */ 128#define EV_PREPARE 0x00004000L /* event loop about to poll */
110#define EV_CHECK 0x00008000L /* event loop finished poll */ 129#define EV_CHECK 0x00008000L /* event loop finished poll */
111#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ 130#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */
112#define EV_FORK 0x00020000L /* event loop resumed in child */ 131#define EV_FORK 0x00020000L /* event loop resumed in child */
132#define EV_ASYNC 0x00040000L /* async intra-loop signal */
113#define EV_ERROR 0x80000000L /* sent when an error occurs */ 133#define EV_ERROR 0x80000000L /* sent when an error occurs */
114 134
115/* can be used to add custom fields to all watchers, while losing binary compatibility */ 135/* can be used to add custom fields to all watchers, while losing binary compatibility */
116#ifndef EV_COMMON 136#ifndef EV_COMMON
117# define EV_COMMON void *data; 137# define EV_COMMON void *data;
118#endif 138#endif
119#ifndef EV_PROTOTYPES 139#ifndef EV_PROTOTYPES
120# define EV_PROTOTYPES 1 140# define EV_PROTOTYPES 1
121#endif 141#endif
122 142
123#define EV_VERSION_MAJOR 2 143#define EV_VERSION_MAJOR 3
124#define EV_VERSION_MINOR 0 144#define EV_VERSION_MINOR 0
125 145
126#ifndef EV_CB_DECLARE 146#ifndef EV_CB_DECLARE
127# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); 147# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
128#endif 148#endif
… …
215/* does not support priorities */ 235/* does not support priorities */
216typedef struct ev_child 236typedef struct ev_child
217{ 237{
218 EV_WATCHER_LIST (ev_child) 238 EV_WATCHER_LIST (ev_child)
219 239
240 int flags; /* private */
220 int pid; /* ro */ 241 int pid; /* ro */
221 int rpid; /* rw, holds the received pid */ 242 int rpid; /* rw, holds the received pid */
222 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ 243 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
223} ev_child; 244} ev_child;
224 245
… …
294 ev_idle idle; /* unused */ 315 ev_idle idle; /* unused */
295 ev_fork fork; /* unused */ 316 ev_fork fork; /* unused */
296} ev_embed; 317} ev_embed;
297#endif 318#endif
298 319
320#if EV_ASYNC_ENABLE
321/* invoked when somebody calls ev_async_send on the watcher */
322/* revent EV_ASYNC */
323typedef struct ev_async
324{
325 EV_WATCHER (ev_async)
326
327 EV_ATOMIC_T sent; /* private */
328} ev_async;
329#endif
330
299/* the presence of this union forces similar struct layout */ 331/* the presence of this union forces similar struct layout */
300union ev_any_watcher 332union ev_any_watcher
301{ 333{
302 struct ev_watcher w; 334 struct ev_watcher w;
303 struct ev_watcher_list wl; 335 struct ev_watcher_list wl;
… …
318#if EV_FORK_ENABLE 350#if EV_FORK_ENABLE
319 struct ev_fork fork; 351 struct ev_fork fork;
320#endif 352#endif
321#if EV_EMBED_ENABLE 353#if EV_EMBED_ENABLE
322 struct ev_embed embed; 354 struct ev_embed embed;
355#endif
356#if EV_ASYND_ENABLE
357 struct ev_async async;
323#endif 358#endif
324}; 359};
325 360
326/* bits for ev_default_loop and ev_loop_new */ 361/* bits for ev_default_loop and ev_loop_new */
327/* the default */ 362/* the default */
… …
445 480
446#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) 481#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0)
447#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) 482#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)
448#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) 483#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
449#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 484#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
450#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) 485#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
451#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) 486#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
452#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 487#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
453#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ 488#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
454#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ 489#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
455#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) 490#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
456#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ 491#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
492#define ev_async_set(ev) do { (ev)->gotasync = 0; } while (0)
457 493
458#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) 494#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
459#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) 495#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
460#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) 496#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)
461#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) 497#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
462#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) 498#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
463#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) 499#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
464#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) 500#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
465#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) 501#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
466#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) 502#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
467#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) 503#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
468#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) 504#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
505#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
469 506
470#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 507#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
471#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 508#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
472 509
473#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) 510#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
… …
539void ev_embed_start (EV_P_ ev_embed *w); 576void ev_embed_start (EV_P_ ev_embed *w);
540void ev_embed_stop (EV_P_ ev_embed *w); 577void ev_embed_stop (EV_P_ ev_embed *w);
541void ev_embed_sweep (EV_P_ ev_embed *w); 578void ev_embed_sweep (EV_P_ ev_embed *w);
542# endif 579# endif
543 580
581# if EV_ASYNC_ENABLE
582void ev_async_start (EV_P_ ev_async *w);
583void ev_async_stop (EV_P_ ev_async *w);
584void ev_async_send (EV_P_ ev_async *w);
585# endif
586
544#endif 587#endif
545 588
546#ifdef __cplusplus 589#ifdef __cplusplus
547} 590}
548#endif 591#endif

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