#endif
#ifndef EV_STANDALONE
-# include "config.h"
+# ifdef EV_CONFIG_H
+# include EV_CONFIG_H
+# else
+# include "config.h"
+# endif
# if HAVE_CLOCK_GETTIME
# ifndef EV_USE_MONOTONIC
/**/
-/* darwin simply cannot be helped */
-#ifdef __APPLE__
-# undef EV_USE_POLL
-# undef EV_USE_KQUEUE
-#endif
-
#ifndef CLOCK_MONOTONIC
# undef EV_USE_MONOTONIC
# define EV_USE_MONOTONIC 0
#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
#define EMPTY2(a,b) /* used to suppress some warnings */
-typedef struct ev_watcher *W;
-typedef struct ev_watcher_list *WL;
-typedef struct ev_watcher_time *WT;
+typedef ev_watcher *W;
+typedef ev_watcher_list *WL;
+typedef ev_watcher_time *WT;
static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
fd_event (EV_P_ int fd, int revents)
{
ANFD *anfd = anfds + fd;
- struct ev_io *w;
+ ev_io *w;
- for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
+ for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
{
int ev = w->events & revents;
{
int fd = fdchanges [i];
ANFD *anfd = anfds + fd;
- struct ev_io *w;
+ ev_io *w;
int events = 0;
- for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
+ for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
events |= w->events;
#if EV_SELECT_IS_WINSOCKET
anfd->reify = 0;
- method_modify (EV_A_ fd, anfd->events, events);
+ backend_modify (EV_A_ fd, anfd->events, events);
anfd->events = events;
}
static void
fd_kill (EV_P_ int fd)
{
- struct ev_io *w;
+ ev_io *w;
- while ((w = (struct ev_io *)anfds [fd].head))
+ while ((w = (ev_io *)anfds [fd].head))
{
ev_io_stop (EV_A_ w);
ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
}
}
-/* usually called after fork if method needs to re-arm all fds from scratch */
+/* usually called after fork if backend needs to re-arm all fds from scratch */
static void
fd_rearm_all (EV_P)
{
static int sigpipe [2];
static sig_atomic_t volatile gotsig;
-static struct ev_io sigev;
+static ev_io sigev;
static void
signals_init (ANSIG *base, int count)
}
static void
-sigcb (EV_P_ struct ev_io *iow, int revents)
+sigcb (EV_P_ ev_io *iow, int revents)
{
int signum;
/*****************************************************************************/
-static struct ev_child *childs [PID_HASHSIZE];
+static ev_child *childs [PID_HASHSIZE];
#ifndef _WIN32
-static struct ev_signal childev;
+static ev_signal childev;
#ifndef WCONTINUED
# define WCONTINUED 0
#endif
static void
-child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
+child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status)
{
- struct ev_child *w;
+ ev_child *w;
- for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
+ for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next)
if (w->pid == pid || !w->pid)
{
ev_priority (w) = ev_priority (sw); /* need to do it *now* */
}
static void
-childcb (EV_P_ struct ev_signal *sw, int revents)
+childcb (EV_P_ ev_signal *sw, int revents)
{
int pid, status;
if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
{
/* make sure we are called again until all childs have been reaped */
+ /* we need to do it this way so that the callback gets called before we continue */
ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
child_reap (EV_A_ sw, pid, pid, status);
- child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
+ child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
}
}
}
unsigned int
-ev_method (EV_P)
+ev_supported_backends (void)
+{
+ unsigned int flags = 0;
+
+ if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
+ if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
+ if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
+ if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
+ if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
+
+ return flags;
+}
+
+unsigned int
+ev_recommended_backends (void)
+{
+ unsigned int flags = ev_supported_backends ();
+
+#ifndef __NetBSD__
+ /* kqueue is borked on everything but netbsd apparently */
+ /* it usually doesn't work correctly on anything but sockets and pipes */
+ flags &= ~EVBACKEND_KQUEUE;
+#endif
+#ifdef __APPLE__
+ // flags &= ~EVBACKEND_KQUEUE; for documentation
+ flags &= ~EVBACKEND_POLL;
+#endif
+
+ return flags;
+}
+
+unsigned int
+ev_embeddable_backends (void)
+{
+ return EVBACKEND_EPOLL
+ | EVBACKEND_KQUEUE
+ | EVBACKEND_PORT;
+}
+
+unsigned int
+ev_backend (EV_P)
{
- return method;
+ return backend;
}
static void
loop_init (EV_P_ unsigned int flags)
{
- if (!method)
+ if (!backend)
{
#if EV_USE_MONOTONIC
{
&& getenv ("LIBEV_FLAGS"))
flags = atoi (getenv ("LIBEV_FLAGS"));
- if (!(flags & EVMETHOD_ALL))
- {
- flags |= EVMETHOD_ALL;
-#if EV_USE_KQUEUE && !defined (__NetBSD__)
- /* kqueue is borked on everything but netbsd apparently */
- /* it usually doesn't work correctly on anything but sockets and pipes */
- flags &= ~EVMETHOD_KQUEUE;
-#endif
- }
+ if (!(flags & 0x0000ffffUL))
+ flags |= ev_recommended_backends ();
- method = 0;
+ backend = 0;
#if EV_USE_PORT
- if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
+ if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
#endif
#if EV_USE_KQUEUE
- if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
+ if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
#endif
#if EV_USE_EPOLL
- if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
+ if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
#endif
#if EV_USE_POLL
- if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
+ if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
#endif
#if EV_USE_SELECT
- if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
+ if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
#endif
ev_init (&sigev, sigcb);
int i;
#if EV_USE_PORT
- if (method == EVMETHOD_PORT ) port_destroy (EV_A);
+ if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
#endif
#if EV_USE_KQUEUE
- if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
+ if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
#endif
#if EV_USE_EPOLL
- if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
+ if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
#endif
#if EV_USE_POLL
- if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
+ if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
#endif
#if EV_USE_SELECT
- if (method == EVMETHOD_SELECT) select_destroy (EV_A);
+ if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
#endif
for (i = NUMPRI; i--; )
array_free (prepare, EMPTY0);
array_free (check, EMPTY0);
- method = 0;
+ backend = 0;
}
static void
loop_fork (EV_P)
{
#if EV_USE_PORT
- if (method == EVMETHOD_PORT ) port_fork (EV_A);
+ if (backend == EVBACKEND_PORT ) port_fork (EV_A);
#endif
#if EV_USE_KQUEUE
- if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
+ if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
#endif
#if EV_USE_EPOLL
- if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
+ if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
#endif
if (ev_is_active (&sigev))
loop_init (EV_A_ flags);
- if (ev_method (EV_A))
+ if (ev_backend (EV_A))
return loop;
return 0;
loop_init (EV_A_ flags);
- if (ev_method (EV_A))
+ if (ev_backend (EV_A))
{
siginit (EV_A);
struct ev_loop *loop = ev_default_loop_ptr;
#endif
- if (method)
+ if (backend)
postfork = 1;
}
{
while (timercnt && ((WT)timers [0])->at <= mn_now)
{
- struct ev_timer *w = timers [0];
+ ev_timer *w = timers [0];
assert (("inactive timer on timer heap detected", ev_is_active (w)));
{
while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
{
- struct ev_periodic *w = periodics [0];
+ ev_periodic *w = periodics [0];
assert (("inactive timer on periodic heap detected", ev_is_active (w)));
/* adjust periodics after time jump */
for (i = 0; i < periodiccnt; ++i)
{
- struct ev_periodic *w = periodics [i];
+ ev_periodic *w = periodics [i];
if (w->reschedule_cb)
((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
void
ev_loop (EV_P_ int flags)
{
- double block;
- loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
+ loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)
+ ? EVUNLOOP_ONE
+ : EVUNLOOP_CANCEL;
while (activecnt)
{
fd_reify (EV_A);
/* calculate blocking time */
+ {
+ double block;
- /* we only need this for !monotonic clock or timers, but as we basically
- always have timers, we just calculate it always */
+ if (flags & EVLOOP_NONBLOCK || idlecnt)
+ block = 0.; /* do not block at all */
+ else
+ {
+ /* update time to cancel out callback processing overhead */
#if EV_USE_MONOTONIC
- if (expect_true (have_monotonic))
- time_update_monotonic (EV_A);
- else
+ if (expect_true (have_monotonic))
+ time_update_monotonic (EV_A);
+ else
#endif
- {
- ev_rt_now = ev_time ();
- mn_now = ev_rt_now;
- }
+ {
+ ev_rt_now = ev_time ();
+ mn_now = ev_rt_now;
+ }
- if (flags & EVLOOP_NONBLOCK || idlecnt)
- block = 0.;
- else
- {
- block = MAX_BLOCKTIME;
+ block = MAX_BLOCKTIME;
- if (timercnt)
- {
- ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
- if (block > to) block = to;
- }
+ if (timercnt)
+ {
+ ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
+ if (block > to) block = to;
+ }
#if EV_PERIODICS
- if (periodiccnt)
- {
- ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
- if (block > to) block = to;
- }
+ if (periodiccnt)
+ {
+ ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
+ if (block > to) block = to;
+ }
#endif
- if (expect_false (block < 0.)) block = 0.;
- }
+ if (expect_false (block < 0.)) block = 0.;
+ }
- method_poll (EV_A_ block);
+ backend_poll (EV_A_ block);
+ }
/* update ev_rt_now, do magic */
time_update (EV_A);
periodics_reify (EV_A); /* absolute timers called first */
#endif
- /* queue idle watchers unless io or timers are pending */
+ /* queue idle watchers unless other events are pending */
if (idlecnt && !any_pending (EV_A))
queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
break;
}
- if (loop_done != 2)
- loop_done = 0;
+ if (loop_done == EVUNLOOP_ONE)
+ loop_done = EVUNLOOP_CANCEL;
}
void
/*****************************************************************************/
void
-ev_io_start (EV_P_ struct ev_io *w)
+ev_io_start (EV_P_ ev_io *w)
{
int fd = w->fd;
}
void
-ev_io_stop (EV_P_ struct ev_io *w)
+ev_io_stop (EV_P_ ev_io *w)
{
ev_clear_pending (EV_A_ (W)w);
if (expect_false (!ev_is_active (w)))
}
void
-ev_timer_start (EV_P_ struct ev_timer *w)
+ev_timer_start (EV_P_ ev_timer *w)
{
if (expect_false (ev_is_active (w)))
return;
assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
ev_start (EV_A_ (W)w, ++timercnt);
- array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
+ array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2);
timers [timercnt - 1] = w;
upheap ((WT *)timers, timercnt - 1);
}
void
-ev_timer_stop (EV_P_ struct ev_timer *w)
+ev_timer_stop (EV_P_ ev_timer *w)
{
ev_clear_pending (EV_A_ (W)w);
if (expect_false (!ev_is_active (w)))
}
void
-ev_timer_again (EV_P_ struct ev_timer *w)
+ev_timer_again (EV_P_ ev_timer *w)
{
if (ev_is_active (w))
{
#if EV_PERIODICS
void
-ev_periodic_start (EV_P_ struct ev_periodic *w)
+ev_periodic_start (EV_P_ ev_periodic *w)
{
if (expect_false (ev_is_active (w)))
return;
}
ev_start (EV_A_ (W)w, ++periodiccnt);
- array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
+ array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
periodics [periodiccnt - 1] = w;
upheap ((WT *)periodics, periodiccnt - 1);
}
void
-ev_periodic_stop (EV_P_ struct ev_periodic *w)
+ev_periodic_stop (EV_P_ ev_periodic *w)
{
ev_clear_pending (EV_A_ (W)w);
if (expect_false (!ev_is_active (w)))
}
void
-ev_periodic_again (EV_P_ struct ev_periodic *w)
+ev_periodic_again (EV_P_ ev_periodic *w)
{
/* TODO: use adjustheap and recalculation */
ev_periodic_stop (EV_A_ w);
#endif
void
-ev_idle_start (EV_P_ struct ev_idle *w)
+ev_idle_start (EV_P_ ev_idle *w)
{
if (expect_false (ev_is_active (w)))
return;
ev_start (EV_A_ (W)w, ++idlecnt);
- array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
+ array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2);
idles [idlecnt - 1] = w;
}
void
-ev_idle_stop (EV_P_ struct ev_idle *w)
+ev_idle_stop (EV_P_ ev_idle *w)
{
ev_clear_pending (EV_A_ (W)w);
if (expect_false (!ev_is_active (w)))
}
void
-ev_prepare_start (EV_P_ struct ev_prepare *w)
+ev_prepare_start (EV_P_ ev_prepare *w)
{
if (expect_false (ev_is_active (w)))
return;
ev_start (EV_A_ (W)w, ++preparecnt);
- array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
+ array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
prepares [preparecnt - 1] = w;
}
void
-ev_prepare_stop (EV_P_ struct ev_prepare *w)
+ev_prepare_stop (EV_P_ ev_prepare *w)
{
ev_clear_pending (EV_A_ (W)w);
if (expect_false (!ev_is_active (w)))
}
void
-ev_check_start (EV_P_ struct ev_check *w)
+ev_check_start (EV_P_ ev_check *w)
{
if (expect_false (ev_is_active (w)))
return;
ev_start (EV_A_ (W)w, ++checkcnt);
- array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
+ array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2);
checks [checkcnt - 1] = w;
}
void
-ev_check_stop (EV_P_ struct ev_check *w)
+ev_check_stop (EV_P_ ev_check *w)
{
ev_clear_pending (EV_A_ (W)w);
if (expect_false (!ev_is_active (w)))
#endif
void
-ev_signal_start (EV_P_ struct ev_signal *w)
+ev_signal_start (EV_P_ ev_signal *w)
{
#if EV_MULTIPLICITY
assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
}
void
-ev_signal_stop (EV_P_ struct ev_signal *w)
+ev_signal_stop (EV_P_ ev_signal *w)
{
ev_clear_pending (EV_A_ (W)w);
if (expect_false (!ev_is_active (w)))
}
void
-ev_child_start (EV_P_ struct ev_child *w)
+ev_child_start (EV_P_ ev_child *w)
{
#if EV_MULTIPLICITY
assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
}
void
-ev_child_stop (EV_P_ struct ev_child *w)
+ev_child_stop (EV_P_ ev_child *w)
{
ev_clear_pending (EV_A_ (W)w);
if (expect_false (!ev_is_active (w)))
ev_stop (EV_A_ (W)w);
}
+#if EV_MULTIPLICITY
+void
+ev_embed_sweep (EV_P_ ev_embed *w)
+{
+ ev_loop (w->loop, EVLOOP_NONBLOCK);
+}
+
+static void
+embed_cb (EV_P_ ev_io *io, int revents)
+{
+ ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
+
+ if (ev_cb (w))
+ ev_feed_event (EV_A_ (W)w, EV_EMBED);
+ else
+ ev_embed_sweep (loop, w);
+}
+
+void
+ev_embed_start (EV_P_ ev_embed *w)
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ {
+ struct ev_loop *loop = w->loop;
+ assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
+ ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
+ }
+
+ ev_set_priority (&w->io, ev_priority (w));
+ ev_io_start (EV_A_ &w->io);
+ ev_start (EV_A_ (W)w, 1);
+}
+
+void
+ev_embed_stop (EV_P_ ev_embed *w)
+{
+ ev_clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ ev_io_stop (EV_A_ &w->io);
+ ev_stop (EV_A_ (W)w);
+}
+#endif
+
/*****************************************************************************/
struct ev_once
{
- struct ev_io io;
- struct ev_timer to;
+ ev_io io;
+ ev_timer to;
void (*cb)(int revents, void *arg);
void *arg;
};
}
static void
-once_cb_io (EV_P_ struct ev_io *w, int revents)
+once_cb_io (EV_P_ ev_io *w, int revents)
{
once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
}
static void
-once_cb_to (EV_P_ struct ev_timer *w, int revents)
+once_cb_to (EV_P_ ev_timer *w, int revents)
{
once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
}
projects / software / libev.git / blobdiff