X-Git-Url: https://git.llucax.com/software/libev.git/blobdiff_plain/8b9a210d6531a3b35e9e6138473f6456318bae22..f33a7d9fc29fddfc275c32ac89895119dd0ffeda:/ev.h?ds=sidebyside diff --git a/ev.h b/ev.h index a7898a5..1909055 100644 --- a/ev.h +++ b/ev.h @@ -1,61 +1,144 @@ /* + * libev native API header + * * Copyright (c) 2007 Marc Alexander Lehmann * All rights reserved. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * Redistribution and use in source and binary forms, with or without modifica- + * tion, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- + * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- + * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- + * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. * - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials provided - * with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * Alternatively, the contents of this file may be used under the terms of + * the GNU General Public License ("GPL") version 2 or any later version, + * in which case the provisions of the GPL are applicable instead of + * the above. If you wish to allow the use of your version of this file + * only under the terms of the GPL and not to allow others to use your + * version of this file under the BSD license, indicate your decision + * by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL. If you do not delete the + * provisions above, a recipient may use your version of this file under + * either the BSD or the GPL. */ -#ifndef EV_H -#define EV_H +#ifndef EV_H__ +#define EV_H__ + +#ifdef __cplusplus +extern "C" { +#endif typedef double ev_tstamp; +/* these priorities are inclusive, higher priorities will be called earlier */ +#ifndef EV_MINPRI +# define EV_MINPRI -2 +#endif +#ifndef EV_MAXPRI +# define EV_MAXPRI +2 +#endif + +#ifndef EV_MULTIPLICITY +# define EV_MULTIPLICITY 1 +#endif + +#ifndef EV_PERIODIC_ENABLE +# define EV_PERIODIC_ENABLE 1 +#endif + +#ifndef EV_STAT_ENABLE +# define EV_STAT_ENABLE 1 +#endif + +#ifndef EV_IDLE_ENABLE +# define EV_IDLE_ENABLE 1 +#endif + +#ifndef EV_FORK_ENABLE +# define EV_FORK_ENABLE 1 +#endif + +#ifndef EV_EMBED_ENABLE +# define EV_EMBED_ENABLE 1 +#endif + +/*****************************************************************************/ + +#if EV_STAT_ENABLE +# include +#endif + +/* support multiple event loops? */ +#if EV_MULTIPLICITY +struct ev_loop; +# define EV_P struct ev_loop *loop +# define EV_P_ EV_P, +# define EV_A loop +# define EV_A_ EV_A, +# define EV_DEFAULT ev_default_loop (0) +# define EV_DEFAULT_ EV_DEFAULT, +#else +# define EV_P void +# define EV_P_ +# define EV_A +# define EV_A_ +# define EV_DEFAULT +# define EV_DEFAULT_ + +# undef EV_EMBED_ENABLE +#endif + /* eventmask, revents, events... */ -#define EV_UNDEF -1 /* guaranteed to be invalid */ -#define EV_NONE 0x00 -#define EV_READ 0x01 -#define EV_WRITE 0x02 -#define EV_TIMEOUT 0x000100 -#define EV_PERIODIC 0x000200 -#define EV_SIGNAL 0x000400 -#define EV_IDLE 0x000800 -#define EV_CHECK 0x001000 -#define EV_PREPARE 0x002000 -#define EV_CHILD 0x004000 -#define EV_ERROR 0x800000 /* sent when an error occurs */ - -/* can be used to add custom fields to all watchers */ +#define EV_UNDEF -1L /* guaranteed to be invalid */ +#define EV_NONE 0x00L /* no events */ +#define EV_READ 0x01L /* ev_io detected read will not block */ +#define EV_WRITE 0x02L /* ev_io detected write will not block */ +#define EV_IOFDSET 0x80L /* internal use only */ +#define EV_TIMEOUT 0x00000100L /* timer timed out */ +#define EV_PERIODIC 0x00000200L /* periodic timer timed out */ +#define EV_SIGNAL 0x00000400L /* signal was received */ +#define EV_CHILD 0x00000800L /* child/pid had status change */ +#define EV_STAT 0x00001000L /* stat data changed */ +#define EV_IDLE 0x00002000L /* event loop is idling */ +#define EV_PREPARE 0x00004000L /* event loop about to poll */ +#define EV_CHECK 0x00008000L /* event loop finished poll */ +#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ +#define EV_FORK 0x00020000L /* event loop resumed in child */ +#define EV_ERROR 0x80000000L /* sent when an error occurs */ + +/* can be used to add custom fields to all watchers, while losing binary compatibility */ #ifndef EV_COMMON -# define EV_COMMON void *data +# define EV_COMMON void *data; #endif #ifndef EV_PROTOTYPES # define EV_PROTOTYPES 1 #endif -#define EV_VERSION_MAJOR 1 -#define EV_VERSION_MINOR 1 +#define EV_VERSION_MAJOR 2 +#define EV_VERSION_MINOR 0 + +#ifndef EV_CB_DECLARE +# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); +#endif +#ifndef EV_CB_INVOKE +# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents)) +#endif /* * struct member types: @@ -68,181 +151,410 @@ typedef double ev_tstamp; #define EV_WATCHER(type) \ int active; /* private */ \ int pending; /* private */ \ - EV_COMMON; /* rw */ \ - void (*cb)(struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ + int priority; /* private */ \ + EV_COMMON /* rw */ \ + EV_CB_DECLARE (type) /* private */ #define EV_WATCHER_LIST(type) \ - EV_WATCHER (type); \ - struct type *next /* private */ + EV_WATCHER (type) \ + struct ev_watcher_list *next; /* private */ #define EV_WATCHER_TIME(type) \ - EV_WATCHER (type); \ - ev_tstamp at /* private */ + EV_WATCHER (type) \ + ev_tstamp at; /* private */ /* base class, nothing to see here unless you subclass */ -struct ev_watcher { - EV_WATCHER (ev_watcher); -}; +typedef struct ev_watcher +{ + EV_WATCHER (ev_watcher) +} ev_watcher; /* base class, nothing to see here unless you subclass */ -struct ev_watcher_list { - EV_WATCHER_LIST (ev_watcher_list); -}; +typedef struct ev_watcher_list +{ + EV_WATCHER_LIST (ev_watcher_list) +} ev_watcher_list; /* base class, nothing to see here unless you subclass */ -struct ev_watcher_time { - EV_WATCHER_TIME (ev_watcher_time); -}; +typedef struct ev_watcher_time +{ + EV_WATCHER_TIME (ev_watcher_time) +} ev_watcher_time; + +/* invoked when fd is either EV_READable or EV_WRITEable */ +/* revent EV_READ, EV_WRITE */ +typedef struct ev_io +{ + EV_WATCHER_LIST (ev_io) + + int fd; /* ro */ + int events; /* ro */ +} ev_io; /* invoked after a specific time, repeatable (based on monotonic clock) */ /* revent EV_TIMEOUT */ -struct ev_timer +typedef struct ev_timer { - EV_WATCHER_TIME (ev_timer); + EV_WATCHER_TIME (ev_timer) ev_tstamp repeat; /* rw */ -}; +} ev_timer; /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ /* revent EV_PERIODIC */ -struct ev_periodic +typedef struct ev_periodic { - EV_WATCHER_TIME (ev_periodic); + EV_WATCHER_TIME (ev_periodic) + ev_tstamp offset; /* rw */ ev_tstamp interval; /* rw */ -}; - -/* invoked when fd is either EV_READable or EV_WRITEable */ -/* revent EV_READ, EV_WRITE */ -struct ev_io -{ - EV_WATCHER_LIST (ev_io); - - int fd; /* ro */ - int events; /* ro */ -}; + ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ +} ev_periodic; /* invoked when the given signal has been received */ /* revent EV_SIGNAL */ -struct ev_signal +typedef struct ev_signal { - EV_WATCHER_LIST (ev_signal); + EV_WATCHER_LIST (ev_signal) int signum; /* ro */ -}; +} ev_signal; + +/* invoked when sigchld is received and waitpid indicates the given pid */ +/* revent EV_CHILD */ +/* does not support priorities */ +typedef struct ev_child +{ + EV_WATCHER_LIST (ev_child) + + int pid; /* ro */ + int rpid; /* rw, holds the received pid */ + int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ +} ev_child; + +#if EV_STAT_ENABLE +/* st_nlink = 0 means missing file or other error */ +# ifdef _WIN32 +typedef struct _stati64 ev_statdata; +# else +typedef struct stat ev_statdata; +# endif + +/* invoked each time the stat data changes for a given path */ +/* revent EV_STAT */ +typedef struct ev_stat +{ + EV_WATCHER_LIST (ev_stat) + ev_timer timer; /* private */ + ev_tstamp interval; /* ro */ + const char *path; /* ro */ + ev_statdata prev; /* ro */ + ev_statdata attr; /* ro */ + + int wd; /* wd for inotify, fd for kqueue */ +} ev_stat; +#endif + +#if EV_IDLE_ENABLE /* invoked when the nothing else needs to be done, keeps the process from blocking */ /* revent EV_IDLE */ -struct ev_idle +typedef struct ev_idle { - EV_WATCHER (ev_idle); -}; + EV_WATCHER (ev_idle) +} ev_idle; +#endif /* invoked for each run of the mainloop, just before the blocking call */ /* you can still change events in any way you like */ /* revent EV_PREPARE */ -struct ev_prepare +typedef struct ev_prepare { - EV_WATCHER (ev_prepare); -}; + EV_WATCHER (ev_prepare) +} ev_prepare; /* invoked for each run of the mainloop, just after the blocking call */ /* revent EV_CHECK */ -struct ev_check +typedef struct ev_check { - EV_WATCHER (ev_check); -}; + EV_WATCHER (ev_check) +} ev_check; -/* invoked when sigchld is received and waitpid indicates the givne pid */ -/* revent EV_CHILD */ -struct ev_child +#if EV_FORK_ENABLE +/* the callback gets invoked before check in the child process when a fork was detected */ +typedef struct ev_fork { - EV_WATCHER_LIST (ev_child); + EV_WATCHER (ev_fork) +} ev_fork; +#endif + +#if EV_EMBED_ENABLE +/* used to embed an event loop inside another */ +/* the callback gets invoked when the event loop has handled events, and can be 0 */ +typedef struct ev_embed +{ + EV_WATCHER (ev_embed) + + struct ev_loop *other; /* ro */ + ev_io io; /* private */ + ev_prepare prepare; /* private */ + ev_check check; /* unused */ + ev_timer timer; /* unused */ + ev_periodic periodic; /* unused */ + ev_idle idle; /* unused */ + ev_fork fork; /* unused */ +} ev_embed; +#endif - int pid; /* ro */ - int status; /* rw, holds the exit status, use the macros from sys/wait.h */ +/* the presence of this union forces similar struct layout */ +union ev_any_watcher +{ + struct ev_watcher w; + struct ev_watcher_list wl; + + struct ev_io io; + struct ev_timer timer; + struct ev_periodic periodic; + struct ev_signal signal; + struct ev_child child; +#if EV_STAT_ENABLE + struct ev_stat stat; +#endif +#if EV_IDLE_ENABLE + struct ev_idle idle; +#endif + struct ev_prepare prepare; + struct ev_check check; +#if EV_FORK_ENABLE + struct ev_fork fork; +#endif +#if EV_EMBED_ENABLE + struct ev_embed embed; +#endif }; -#define EVMETHOD_NONE 0 -#define EVMETHOD_SELECT 1 -#define EVMETHOD_EPOLL 2 +/* bits for ev_default_loop and ev_loop_new */ +/* the default */ +#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ +/* flag bits */ +#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ +#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */ +/* method bits to be ored together */ +#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ +#define EVBACKEND_POLL 0x00000002UL /* !win */ +#define EVBACKEND_EPOLL 0x00000004UL /* linux */ +#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ +#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ +#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ + #if EV_PROTOTYPES -extern int ev_method; -int ev_init (int flags); /* returns ev_method */ int ev_version_major (void); int ev_version_minor (void); -/* these three calls are suitable for plugging into pthread_atfork */ -void ev_fork_prepare (void); -void ev_fork_parent (void); -void ev_fork_child (void); +unsigned int ev_supported_backends (void); +unsigned int ev_recommended_backends (void); +unsigned int ev_embeddable_backends (void); -extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */ ev_tstamp ev_time (void); +void ev_sleep (ev_tstamp delay); /* sleep for a while */ + +/* Sets the allocation function to use, works like realloc. + * It is used to allocate and free memory. + * If it returns zero when memory needs to be allocated, the library might abort + * or take some potentially destructive action. + * The default is your system realloc function. + */ +void ev_set_allocator (void *(*cb)(void *ptr, long size)); + +/* set the callback function to call on a + * retryable syscall error + * (such as failed select, poll, epoll_wait) + */ +void ev_set_syserr_cb (void (*cb)(const char *msg)); + +# if EV_MULTIPLICITY +/* the default loop is the only one that handles signals and child watchers */ +/* you can call this as often as you like */ +static struct ev_loop * +ev_default_loop (unsigned int flags) +{ + extern struct ev_loop *ev_default_loop_ptr; + extern struct ev_loop *ev_default_loop_init (unsigned int flags); + + if (!ev_default_loop_ptr) + ev_default_loop_init (flags); + + return ev_default_loop_ptr; +} + +/* create and destroy alternative loops that don't handle signals */ +struct ev_loop *ev_loop_new (unsigned int flags); +void ev_loop_destroy (EV_P); +void ev_loop_fork (EV_P); + +ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ + +# else + +int ev_default_loop (unsigned int flags); /* returns true when successful */ + +static ev_tstamp +ev_now (void) +{ + extern ev_tstamp ev_rt_now; + + return ev_rt_now; +} +# endif + +void ev_default_destroy (void); /* destroy the default loop */ +/* this needs to be called after fork, to duplicate the default loop */ +/* if you create alternative loops you have to call ev_loop_fork on them */ +/* you can call it in either the parent or the child */ +/* you can actually call it at any time, anywhere :) */ +void ev_default_fork (void); + +unsigned int ev_backend (EV_P); /* backend in use by loop */ +unsigned int ev_loop_count (EV_P); /* number of loop iterations */ #endif #define EVLOOP_NONBLOCK 1 /* do not block/wait */ #define EVLOOP_ONESHOT 2 /* block *once* only */ +#define EVUNLOOP_CANCEL 0 /* undo unloop */ +#define EVUNLOOP_ONE 1 /* unloop once */ +#define EVUNLOOP_ALL 2 /* unloop all loops */ + #if EV_PROTOTYPES -void ev_loop (int flags); -extern int ev_loop_done; /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ +void ev_loop (EV_P_ int flags); +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 */ + +void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ +void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ + +/* + * ref/unref can be used to add or remove a refcount on the mainloop. every watcher + * keeps one reference. if you have a long-runing watcher you never unregister that + * should not keep ev_loop from running, unref() after starting, and ref() before stopping. + */ +void ev_ref (EV_P); +void ev_unref (EV_P); /* convinience function, wait for a single event, without registering an event watcher */ /* if timeout is < 0, do wait indefinitely */ -void ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); +void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); #endif /* these may evaluate ev multiple times, and the other arguments at most once */ -/* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ -#define ev_watcher_init(ev,cb_) do { (ev)->active = 0; (ev)->pending = 0; (ev)->cb = (cb_); } while (0) - -#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) +/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ +#define ev_init(ev,cb_) do { \ + ((ev_watcher *)(void *)(ev))->active = \ + ((ev_watcher *)(void *)(ev))->pending = \ + ((ev_watcher *)(void *)(ev))->priority = 0; \ + ev_set_cb ((ev), cb_); \ +} while (0) + +#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) -#define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) +#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) +#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) +#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ -#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) - -#define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) -#define ev_timer_init(ev,cb,after,repeat) do { ev_watcher_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) -#define ev_periodic_init(ev,cb,at,interval) do { ev_watcher_init ((ev), (cb)); ev_periodic_set ((ev),(at),(interval)); } while (0) -#define ev_signal_init(ev,cb,signum) do { ev_watcher_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) -#define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) -#define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) -#define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) -#define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) - -#define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ +#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) +#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ + +#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) +#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) +#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) +#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) +#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) +#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) +#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) +#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) +#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) +#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) +#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) + +#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ +#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ + +#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) +#define ev_cb(ev) (ev)->cb /* rw */ +#define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) + +#ifndef ev_set_cb +# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) +#endif /* stopping (enabling, adding) a watcher does nothing if it is already running */ /* stopping (disabling, deleting) a watcher does nothing unless its already running */ #if EV_PROTOTYPES -void ev_io_start (struct ev_io *w); -void ev_io_stop (struct ev_io *w); -void ev_timer_start (struct ev_timer *w); -void ev_timer_stop (struct ev_timer *w); -void ev_timer_again (struct ev_timer *w); /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ +/* feeds an event into a watcher as if the event actually occured */ +/* accepts any ev_watcher type */ +void ev_feed_event (EV_P_ void *w, int revents); +void ev_feed_fd_event (EV_P_ int fd, int revents); +void ev_feed_signal_event (EV_P_ int signum); +void ev_invoke (EV_P_ void *w, int revents); +int ev_clear_pending (EV_P_ void *w); + +void ev_io_start (EV_P_ ev_io *w); +void ev_io_stop (EV_P_ ev_io *w); + +void ev_timer_start (EV_P_ ev_timer *w); +void ev_timer_stop (EV_P_ ev_timer *w); +/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ +void ev_timer_again (EV_P_ ev_timer *w); + +#if EV_PERIODIC_ENABLE +void ev_periodic_start (EV_P_ ev_periodic *w); +void ev_periodic_stop (EV_P_ ev_periodic *w); +void ev_periodic_again (EV_P_ ev_periodic *w); +#endif + +/* only supported in the default loop */ +void ev_signal_start (EV_P_ ev_signal *w); +void ev_signal_stop (EV_P_ ev_signal *w); + +/* only supported in the default loop */ +void ev_child_start (EV_P_ ev_child *w); +void ev_child_stop (EV_P_ ev_child *w); -void ev_periodic_start (struct ev_periodic *w); -void ev_periodic_stop (struct ev_periodic *w); +# if EV_STAT_ENABLE +void ev_stat_start (EV_P_ ev_stat *w); +void ev_stat_stop (EV_P_ ev_stat *w); +void ev_stat_stat (EV_P_ ev_stat *w); +# endif -void ev_signal_start (struct ev_signal *w); -void ev_signal_stop (struct ev_signal *w); +# if EV_IDLE_ENABLE +void ev_idle_start (EV_P_ ev_idle *w); +void ev_idle_stop (EV_P_ ev_idle *w); +# endif -void ev_idle_start (struct ev_idle *w); -void ev_idle_stop (struct ev_idle *w); +void ev_prepare_start (EV_P_ ev_prepare *w); +void ev_prepare_stop (EV_P_ ev_prepare *w); -void ev_prepare_start (struct ev_prepare *w); -void ev_prepare_stop (struct ev_prepare *w); +void ev_check_start (EV_P_ ev_check *w); +void ev_check_stop (EV_P_ ev_check *w); -void ev_check_start (struct ev_check *w); -void ev_check_stop (struct ev_check *w); +# if EV_FORK_ENABLE +void ev_fork_start (EV_P_ ev_fork *w); +void ev_fork_stop (EV_P_ ev_fork *w); +# endif + +# if EV_EMBED_ENABLE +/* only supported when loop to be embedded is in fact embeddable */ +void ev_embed_start (EV_P_ ev_embed *w); +void ev_embed_stop (EV_P_ ev_embed *w); +void ev_embed_sweep (EV_P_ ev_embed *w); +# endif + +#endif -void ev_child_start (struct ev_child *w); -void ev_child_stop (struct ev_child *w); +#ifdef __cplusplus +} #endif #endif