/*
* libev native API header
*
- * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
+ * Copyright (c) 2007,2008,2009,2010,2011,2012,2015 Marc Alexander Lehmann <libev@schmorp.de>
* All rights reserved.
*
* 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
* either the BSD or the GPL.
*/
-#ifndef EV_H__
-#define EV_H__
+#ifndef EV_H_
+#define EV_H_
#ifdef __cplusplus
-extern "C" {
+# define EV_CPP(x) x
+# if __cplusplus >= 201103L
+# define EV_THROW noexcept
+# else
+# define EV_THROW throw ()
+# endif
+#else
+# define EV_CPP(x)
+# define EV_THROW
#endif
-typedef double ev_tstamp;
+EV_CPP(extern "C" {)
+
+/*****************************************************************************/
+
+/* pre-4.0 compatibility */
+#ifndef EV_COMPAT3
+# define EV_COMPAT3 1
+#endif
+
+#ifndef EV_FEATURES
+# if defined __OPTIMIZE_SIZE__
+# define EV_FEATURES 0x7c
+# else
+# define EV_FEATURES 0x7f
+# endif
+#endif
+
+#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
+#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
+#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
+#define EV_FEATURE_API ((EV_FEATURES) & 8)
+#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16)
+#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32)
+#define EV_FEATURE_OS ((EV_FEATURES) & 64)
-/* these priorities are inclusive, higher priorities will be called earlier */
+/* these priorities are inclusive, higher priorities will be invoked earlier */
#ifndef EV_MINPRI
-# define EV_MINPRI -2
+# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0)
#endif
#ifndef EV_MAXPRI
-# define EV_MAXPRI +2
+# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0)
#endif
#ifndef EV_MULTIPLICITY
-# define EV_MULTIPLICITY 1
+# define EV_MULTIPLICITY EV_FEATURE_CONFIG
#endif
#ifndef EV_PERIODIC_ENABLE
-# define EV_PERIODIC_ENABLE 1
+# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
#endif
#ifndef EV_STAT_ENABLE
-# define EV_STAT_ENABLE 1
+# define EV_STAT_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_PREPARE_ENABLE
+# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_CHECK_ENABLE
+# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS
#endif
#ifndef EV_IDLE_ENABLE
-# define EV_IDLE_ENABLE 1
+# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
#endif
#ifndef EV_FORK_ENABLE
-# define EV_FORK_ENABLE 1
+# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
#endif
-#ifndef EV_EMBED_ENABLE
-# define EV_EMBED_ENABLE 1
+#ifndef EV_CLEANUP_ENABLE
+# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_SIGNAL_ENABLE
+# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_CHILD_ENABLE
+# ifdef _WIN32
+# define EV_CHILD_ENABLE 0
+# else
+# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS
+#endif
#endif
#ifndef EV_ASYNC_ENABLE
-# define EV_ASYNC_ENABLE 1
+# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS
+#endif
+
+#ifndef EV_EMBED_ENABLE
+# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS
#endif
#ifndef EV_WALK_ENABLE
# define EV_WALK_ENABLE 0 /* not yet */
#endif
+/*****************************************************************************/
+
+#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
+# undef EV_SIGNAL_ENABLE
+# define EV_SIGNAL_ENABLE 1
+#endif
+
+/*****************************************************************************/
+
+typedef double ev_tstamp;
+
+#include <string.h> /* for memmove */
+
#ifndef EV_ATOMIC_T
# include <signal.h>
# define EV_ATOMIC_T sig_atomic_t volatile
#endif
-/*****************************************************************************/
-
#if EV_STAT_ENABLE
# ifdef _WIN32
# include <time.h>
/* 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_UC ev_default_loop_uc ()
-# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
-# define EV_DEFAULT ev_default_loop (0)
-# define EV_DEFAULT_ EV_DEFAULT,
+# define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */
+# define EV_P_ EV_P, /* a loop as first of multiple parameters */
+# define EV_A loop /* a loop as sole argument to a function call */
+# define EV_A_ EV_A, /* a loop as first of multiple arguments */
+# define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */
+# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */
+# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */
+# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */
#else
# define EV_P void
# define EV_P_
# undef EV_EMBED_ENABLE
#endif
+/* EV_INLINE is used for functions in header files */
#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3
# define EV_INLINE static inline
#else
# define EV_INLINE static
#endif
+#ifdef EV_API_STATIC
+# define EV_API_DECL static
+#else
+# define EV_API_DECL extern
+#endif
+
+/* EV_PROTOTYPES can be used to switch of prototype declarations */
+#ifndef EV_PROTOTYPES
+# define EV_PROTOTYPES 1
+#endif
+
/*****************************************************************************/
+#define EV_VERSION_MAJOR 4
+#define EV_VERSION_MINOR 24
+
/* eventmask, revents, events... */
-#define EV_UNDEF -1 /* guaranteed to be invalid */
-#define EV_NONE 0x00 /* no events */
-#define EV_READ 0x01 /* ev_io detected read will not block */
-#define EV_WRITE 0x02 /* ev_io detected write will not block */
-#define EV__IOFDSET 0x80 /* internal use only */
-#define EV_IO EV_READ /* alias for type-detection */
-#define EV_TIMEOUT 0x00000100 /* timer timed out */
-#define EV_TIMER EV_TIMEOUT /* alias for type-detection */
-#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
-#define EV_SIGNAL 0x00000400 /* signal was received */
-#define EV_CHILD 0x00000800 /* child/pid had status change */
-#define EV_STAT 0x00001000 /* stat data changed */
-#define EV_IDLE 0x00002000 /* event loop is idling */
-#define EV_PREPARE 0x00004000 /* event loop about to poll */
-#define EV_CHECK 0x00008000 /* event loop finished poll */
-#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
-#define EV_FORK 0x00020000 /* event loop resumed in child */
-#define EV_ASYNC 0x00040000 /* async intra-loop signal */
-#define EV_CUSTOM 0x01000000 /* for use by user code */
-#define EV_ERROR 0x80000000 /* sent when an error occurs */
+enum {
+ EV_UNDEF = (int)0xFFFFFFFF, /* guaranteed to be invalid */
+ EV_NONE = 0x00, /* no events */
+ EV_READ = 0x01, /* ev_io detected read will not block */
+ EV_WRITE = 0x02, /* ev_io detected write will not block */
+ EV_EXCEPTION= 0x04, /* ev_io detected exceptional condition */
+ EV__IOFDSET = 0x80, /* internal use only */
+ EV_IO = EV_READ, /* alias for type-detection */
+ EV_TIMER = 0x00000100, /* timer timed out */
+#if EV_COMPAT3
+ EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
+#endif
+ EV_PERIODIC = 0x00000200, /* periodic timer timed out */
+ EV_SIGNAL = 0x00000400, /* signal was received */
+ EV_CHILD = 0x00000800, /* child/pid had status change */
+ EV_STAT = 0x00001000, /* stat data changed */
+ EV_IDLE = 0x00002000, /* event loop is idling */
+ EV_PREPARE = 0x00004000, /* event loop about to poll */
+ EV_CHECK = 0x00008000, /* event loop finished poll */
+ EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
+ EV_FORK = 0x00020000, /* event loop resumed in child */
+ EV_CLEANUP = 0x00040000, /* event loop resumed in child */
+ EV_ASYNC = 0x00080000, /* async intra-loop signal */
+ EV_CUSTOM = 0x01000000, /* for use by user code */
+ EV_ERROR = (int)0x80000000 /* 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;
#endif
-#ifndef EV_PROTOTYPES
-# define EV_PROTOTYPES 1
-#endif
-
-#define EV_VERSION_MAJOR 3
-#define EV_VERSION_MINOR 0
#ifndef EV_CB_DECLARE
# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
#endif
+/* not official, do not use */
+#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
+
/*
* struct member types:
* private: you may look at them, but not change them,
* or the array index + 1 in the pendings array.
*/
+#if EV_MINPRI == EV_MAXPRI
+# define EV_DECL_PRIORITY
+#elif !defined (EV_DECL_PRIORITY)
+# define EV_DECL_PRIORITY int priority;
+#endif
+
/* shared by all watchers */
#define EV_WATCHER(type) \
int active; /* private */ \
int pending; /* private */ \
- int priority; /* private */ \
+ EV_DECL_PRIORITY /* private */ \
EV_COMMON /* rw */ \
EV_CB_DECLARE (type) /* private */
ev_tstamp offset; /* rw */
ev_tstamp interval; /* rw */
- ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
+ ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now) EV_THROW; /* rw */
} ev_periodic;
/* invoked when the given signal has been received */
#if EV_FORK_ENABLE
/* the callback gets invoked before check in the child process when a fork was detected */
+/* revent EV_FORK */
typedef struct ev_fork
{
EV_WATCHER (ev_fork)
} ev_fork;
#endif
+#if EV_CLEANUP_ENABLE
+/* is invoked just before the loop gets destroyed */
+/* revent EV_CLEANUP */
+typedef struct ev_cleanup
+{
+ EV_WATCHER (ev_cleanup)
+} ev_cleanup;
+#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 */
ev_periodic periodic; /* unused */
ev_idle idle; /* unused */
ev_fork fork; /* private */
+#if EV_CLEANUP_ENABLE
+ ev_cleanup cleanup; /* unused */
+#endif
} ev_embed;
#endif
EV_ATOMIC_T sent; /* private */
} ev_async;
-# define ev_async_pending(w) ((w)->sent + 0)
+# define ev_async_pending(w) (+(w)->sent)
#endif
/* the presence of this union forces similar struct layout */
#if EV_FORK_ENABLE
struct ev_fork fork;
#endif
+#if EV_CLEANUP_ENABLE
+ struct ev_cleanup cleanup;
+#endif
#if EV_EMBED_ENABLE
struct ev_embed embed;
#endif
#endif
};
-/* bits for ev_default_loop and ev_loop_new */
-/* the default */
-#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
-/* flag bits */
-#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
-#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
+/* flag bits for ev_default_loop and ev_loop_new */
+enum {
+ /* the default */
+ EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
+ /* flag bits */
+ EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
+ EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
+ /* debugging/feature disable */
+ EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
+#if EV_COMPAT3
+ EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
+#endif
+ EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */
+ EVFLAG_NOSIGMASK = 0x00400000U /* avoid modifying the signal mask */
+};
+
/* method bits to be ored together */
-#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
-#define EVBACKEND_POLL 0x00000002U /* !win */
-#define EVBACKEND_EPOLL 0x00000004U /* linux */
-#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
-#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */
-#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
+enum {
+ EVBACKEND_SELECT = 0x00000001U, /* available just about anywhere */
+ EVBACKEND_POLL = 0x00000002U, /* !win, !aix, broken on osx */
+ EVBACKEND_EPOLL = 0x00000004U, /* linux */
+ EVBACKEND_KQUEUE = 0x00000008U, /* bsd, broken on osx */
+ EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 */ /* NYI */
+ EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
+ EVBACKEND_ALL = 0x0000003FU, /* all known backends */
+ EVBACKEND_MASK = 0x0000FFFFU /* all future backends */
+};
#if EV_PROTOTYPES
-int ev_version_major (void);
-int ev_version_minor (void);
+EV_API_DECL int ev_version_major (void) EV_THROW;
+EV_API_DECL int ev_version_minor (void) EV_THROW;
-unsigned int ev_supported_backends (void);
-unsigned int ev_recommended_backends (void);
-unsigned int ev_embeddable_backends (void);
+EV_API_DECL unsigned int ev_supported_backends (void) EV_THROW;
+EV_API_DECL unsigned int ev_recommended_backends (void) EV_THROW;
+EV_API_DECL unsigned int ev_embeddable_backends (void) EV_THROW;
-ev_tstamp ev_time (void);
-void ev_sleep (ev_tstamp delay); /* sleep for a while */
+EV_API_DECL ev_tstamp ev_time (void) EV_THROW;
+EV_API_DECL void ev_sleep (ev_tstamp delay) EV_THROW; /* sleep for a while */
/* Sets the allocation function to use, works like realloc.
* It is used to allocate and free memory.
* or take some potentially destructive action.
* The default is your system realloc function.
*/
-void ev_set_allocator (void *(*cb)(void *ptr, long size));
+EV_API_DECL void ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW;
/* 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));
+EV_API_DECL void ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW;
#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 */
+EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_THROW;
+
+#ifdef EV_API_STATIC
+EV_API_DECL struct ev_loop *ev_default_loop_ptr;
+#endif
+
EV_INLINE struct ev_loop *
-ev_default_loop_uc (void)
+ev_default_loop_uc_ (void) EV_THROW
{
extern struct ev_loop *ev_default_loop_ptr;
return ev_default_loop_ptr;
}
-/* the default loop is the only one that handles signals and child watchers */
-/* you can call this as often as you like */
-EV_INLINE struct ev_loop *
-ev_default_loop (unsigned int flags)
+EV_INLINE int
+ev_is_default_loop (EV_P) EV_THROW
{
- struct ev_loop *loop = ev_default_loop_uc ();
-
- if (!loop)
- {
- extern struct ev_loop *ev_default_loop_init (unsigned int flags);
-
- loop = ev_default_loop_init (flags);
- }
-
- return loop;
+ return EV_A == EV_DEFAULT_UC;
}
/* 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_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)) EV_THROW;
-ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
-void ev_now_update (EV_P);
+EV_API_DECL ev_tstamp ev_now (EV_P) EV_THROW; /* time w.r.t. timers and the eventloop, updated after each poll */
#else
-int ev_default_loop (unsigned int flags); /* returns true when successful */
+EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)) EV_THROW; /* returns true when successful */
+
+EV_API_DECL ev_tstamp ev_rt_now;
EV_INLINE ev_tstamp
-ev_now (void)
+ev_now (void) EV_THROW
{
- extern ev_tstamp ev_rt_now;
-
return ev_rt_now;
}
-#endif /* multiplicity */
+/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
EV_INLINE int
-ev_is_default_loop (EV_P)
+ev_is_default_loop (void) EV_THROW
{
-#if EV_MULTIPLICITY
- extern struct ev_loop *ev_default_loop_ptr;
-
- return !!(EV_A == ev_default_loop_ptr);
-#else
return 1;
-#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 */
+#endif /* multiplicity */
+
+/* destroy event loops, also works for the default loop */
+EV_API_DECL void ev_loop_destroy (EV_P);
+
+/* this needs to be called after fork, to duplicate the loop */
+/* when you want to re-use it in the child */
/* 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);
+EV_API_DECL void ev_loop_fork (EV_P) EV_THROW;
+
+EV_API_DECL unsigned int ev_backend (EV_P) EV_THROW; /* backend in use by loop */
-unsigned int ev_backend (EV_P); /* backend in use by loop */
-unsigned int ev_loop_count (EV_P); /* number of loop iterations */
-unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
-void ev_loop_verify (EV_P); /* abort if loop data corrupted */
+EV_API_DECL void ev_now_update (EV_P) EV_THROW; /* update event loop time */
#if EV_WALK_ENABLE
/* walk (almost) all watchers in the loop of a given type, invoking the */
/* callback on every such watcher. The callback might stop the watcher, */
/* but do nothing else with the loop */
-void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w));
+EV_API_DECL void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW;
#endif
#endif /* prototypes */
-#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 */
+/* ev_run flags values */
+enum {
+ EVRUN_NOWAIT = 1, /* do not block/wait */
+ EVRUN_ONCE = 2 /* block *once* only */
+};
-#if EV_PROTOTYPES
-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 */
+/* ev_break how values */
+enum {
+ EVBREAK_CANCEL = 0, /* undo unloop */
+ EVBREAK_ONE = 1, /* unloop once */
+ EVBREAK_ALL = 2 /* unloop all 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 */
+#if EV_PROTOTYPES
+EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0));
+EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)) EV_THROW; /* break out of the loop */
/*
* 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
+ * keeps one reference. if you have a long-running 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);
+EV_API_DECL void ev_ref (EV_P) EV_THROW;
+EV_API_DECL void ev_unref (EV_P) EV_THROW;
/*
- * stop/start the timer handling.
+ * convenience function, wait for a single event, without registering an event watcher
+ * if timeout is < 0, do wait indefinitely
*/
-void ev_suspend (EV_P);
-void ev_resume (EV_P);
+EV_API_DECL void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW;
+
+# if EV_FEATURE_API
+EV_API_DECL unsigned int ev_iteration (EV_P) EV_THROW; /* number of loop iterations */
+EV_API_DECL unsigned int ev_depth (EV_P) EV_THROW; /* #ev_loop enters - #ev_loop leaves */
+EV_API_DECL void ev_verify (EV_P) EV_THROW; /* abort if loop data corrupted */
+
+EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW; /* sleep at least this time, default 0 */
+EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW; /* sleep at least this time, default 0 */
+
+/* advanced stuff for threading etc. support, see docs */
+EV_API_DECL void ev_set_userdata (EV_P_ void *data) EV_THROW;
+EV_API_DECL void *ev_userdata (EV_P) EV_THROW;
+typedef void (*ev_loop_callback)(EV_P);
+EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW;
+/* C++ doesn't allow the use of the ev_loop_callback typedef here, so we need to spell it out */
+EV_API_DECL void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW;
+
+EV_API_DECL unsigned int ev_pending_count (EV_P) EV_THROW; /* number of pending events, if any */
+EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */
/*
- * convenience function, wait for a single event, without registering an event watcher
- * if timeout is < 0, do wait indefinitely
+ * stop/start the timer handling.
*/
-void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
+EV_API_DECL void ev_suspend (EV_P) EV_THROW;
+EV_API_DECL void ev_resume (EV_P) EV_THROW;
+#endif
+
#endif
/* these may evaluate ev multiple times, and the other arguments at most once */
/* 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_watcher *)(void *)(ev))->active = \
+ ((ev_watcher *)(void *)(ev))->pending = 0; \
+ ev_set_priority ((ev), 0); \
ev_set_cb ((ev), cb_); \
} while (0)
#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
#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_async_set(ev) do { (ev)->sent = 0; } while (0)
+#define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */
+#define ev_async_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_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_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0)
#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_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)
+#define ev_cb_(ev) (ev)->cb /* rw */
+#define ev_cb(ev) (memmove (&ev_cb_ (ev), &((ev_watcher *)(ev))->cb, sizeof (ev_cb_ (ev))), (ev)->cb)
+
+#if EV_MINPRI == EV_MAXPRI
+# define ev_priority(ev) ((ev), EV_MINPRI)
+# define ev_set_priority(ev,pri) ((ev), (pri))
+#else
+# define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority))
+# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri)
+#endif
-#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
+#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
#ifndef ev_set_cb
-# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
+# define ev_set_cb(ev,cb_) (ev_cb_ (ev) = (cb_), memmove (&((ev_watcher *)(ev))->cb, &ev_cb_ (ev), sizeof (ev_cb_ (ev))))
#endif
/* stopping (enabling, adding) a watcher does nothing if it is already running */
-/* stopping (disabling, deleting) a watcher does nothing unless its already running */
+/* stopping (disabling, deleting) a watcher does nothing unless it's already running */
#if EV_PROTOTYPES
-/* feeds an event into a watcher as if the event actually occured */
+/* feeds an event into a watcher as if the event actually occurred */
/* 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);
+EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents) EV_THROW;
+EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW;
+#if EV_SIGNAL_ENABLE
+EV_API_DECL void ev_feed_signal (int signum) EV_THROW;
+EV_API_DECL void ev_feed_signal_event (EV_P_ int signum) EV_THROW;
+#endif
+EV_API_DECL void ev_invoke (EV_P_ void *w, int revents);
+EV_API_DECL int ev_clear_pending (EV_P_ void *w) EV_THROW;
-void ev_io_start (EV_P_ ev_io *w);
-void ev_io_stop (EV_P_ ev_io *w);
+EV_API_DECL void ev_io_start (EV_P_ ev_io *w) EV_THROW;
+EV_API_DECL void ev_io_stop (EV_P_ ev_io *w) EV_THROW;
-void ev_timer_start (EV_P_ ev_timer *w);
-void ev_timer_stop (EV_P_ ev_timer *w);
+EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w) EV_THROW;
+EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w) EV_THROW;
/* 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);
+EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w) EV_THROW;
+/* return remaining time */
+EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW;
#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);
+EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW;
+EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW;
+EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW;
#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);
+#if EV_SIGNAL_ENABLE
+EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w) EV_THROW;
+EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w) EV_THROW;
+#endif
/* only supported in the default loop */
-void ev_child_start (EV_P_ ev_child *w);
-void ev_child_stop (EV_P_ ev_child *w);
+# if EV_CHILD_ENABLE
+EV_API_DECL void ev_child_start (EV_P_ ev_child *w) EV_THROW;
+EV_API_DECL void ev_child_stop (EV_P_ ev_child *w) EV_THROW;
+# endif
# 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);
+EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w) EV_THROW;
+EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w) EV_THROW;
+EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w) EV_THROW;
# endif
# if EV_IDLE_ENABLE
-void ev_idle_start (EV_P_ ev_idle *w);
-void ev_idle_stop (EV_P_ ev_idle *w);
+EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w) EV_THROW;
+EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w) EV_THROW;
# endif
-void ev_prepare_start (EV_P_ ev_prepare *w);
-void ev_prepare_stop (EV_P_ ev_prepare *w);
+#if EV_PREPARE_ENABLE
+EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW;
+EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW;
+#endif
-void ev_check_start (EV_P_ ev_check *w);
-void ev_check_stop (EV_P_ ev_check *w);
+#if EV_CHECK_ENABLE
+EV_API_DECL void ev_check_start (EV_P_ ev_check *w) EV_THROW;
+EV_API_DECL void ev_check_stop (EV_P_ ev_check *w) EV_THROW;
+#endif
# if EV_FORK_ENABLE
-void ev_fork_start (EV_P_ ev_fork *w);
-void ev_fork_stop (EV_P_ ev_fork *w);
+EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w) EV_THROW;
+EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w) EV_THROW;
+# endif
+
+# if EV_CLEANUP_ENABLE
+EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW;
+EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW;
# 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);
+EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w) EV_THROW;
+EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w) EV_THROW;
+EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW;
# endif
# if EV_ASYNC_ENABLE
-void ev_async_start (EV_P_ ev_async *w);
-void ev_async_stop (EV_P_ ev_async *w);
-void ev_async_send (EV_P_ ev_async *w);
+EV_API_DECL void ev_async_start (EV_P_ ev_async *w) EV_THROW;
+EV_API_DECL void ev_async_stop (EV_P_ ev_async *w) EV_THROW;
+EV_API_DECL void ev_async_send (EV_P_ ev_async *w) EV_THROW;
# endif
+#if EV_COMPAT3
+ #define EVLOOP_NONBLOCK EVRUN_NOWAIT
+ #define EVLOOP_ONESHOT EVRUN_ONCE
+ #define EVUNLOOP_CANCEL EVBREAK_CANCEL
+ #define EVUNLOOP_ONE EVBREAK_ONE
+ #define EVUNLOOP_ALL EVBREAK_ALL
+ #if EV_PROTOTYPES
+ EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
+ EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
+ EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
+ EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); }
+ #if EV_FEATURE_API
+ EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); }
+ EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); }
+ EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
+ #endif
+ #endif
+#else
+ typedef struct ev_loop ev_loop;
#endif
-#ifdef __cplusplus
-}
#endif
+EV_CPP(})
+
#endif
projects / sojka / libev.git / blobdiff