*/
#ifndef EV_STANDALONE
# include "config.h"
+
+# if HAVE_CLOCK_GETTIME
+# define EV_USE_MONOTONIC 1
+# define EV_USE_REALTIME 1
+# endif
+
+# if HAVE_SELECT && HAVE_SYS_SELECT_H
+# define EV_USE_SELECT 1
+# endif
+
+# if HAVE_POLL && HAVE_POLL_H
+# define EV_USE_POLL 1
+# endif
+
+# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
+# define EV_USE_EPOLL 1
+# endif
+
+# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
+# define EV_USE_KQUEUE 1
+# endif
+
#endif
#include <math.h>
# define EV_USE_SELECT 1
#endif
-#ifndef EV_USEV_POLL
-# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */
+#ifndef EV_USE_POLL
+# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
#endif
#ifndef EV_USE_EPOLL
int events;
} ANPENDING;
-#ifdef EV_MULTIPLICITY
+#if EV_MULTIPLICITY
struct ev_loop
{
}
}
+/* susually called after fork if method needs to re-arm all fds from scratch */
+static void
+fd_rearm_all (EV_P)
+{
+ int fd;
+
+ /* this should be highly optimised to not do anything but set a flag */
+ for (fd = 0; fd < anfdmax; ++fd)
+ if (anfds [fd].events)
+ {
+ anfds [fd].events = 0;
+ fd_change (EV_A_ fd);
+ }
+}
+
/*****************************************************************************/
static void
static int sigpipe [2];
static sig_atomic_t volatile gotsig;
+static struct ev_io sigev;
static void
signals_init (ANSIG *base, int count)
#ifndef WIN32
+static struct ev_child *childs [PID_HASHSIZE];
+static struct ev_signal childev;
+
#ifndef WCONTINUED
# define WCONTINUED 0
#endif
#if EV_USE_EPOLL
# include "ev_epoll.c"
#endif
-#if EV_USEV_POLL
+#if EV_USE_POLL
# include "ev_poll.c"
#endif
#if EV_USE_SELECT
now_floor = mn_now;
rtmn_diff = rt_now - mn_now;
- if (pipe (sigpipe))
- return 0;
-
if (methods == EVMETHOD_AUTO)
- if (!enable_secure () && getenv ("LIBmethodS"))
- methods = atoi (getenv ("LIBmethodS"));
+ if (!enable_secure () && getenv ("LIBEV_METHODS"))
+ methods = atoi (getenv ("LIBEV_METHODS"));
else
methods = EVMETHOD_ANY;
#if EV_USE_EPOLL
if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
#endif
-#if EV_USEV_POLL
+#if EV_USE_POLL
if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
#endif
#if EV_USE_SELECT
if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
#endif
+ }
+}
- if (method)
- {
- ev_watcher_init (&sigev, sigcb);
- ev_set_priority (&sigev, EV_MAXPRI);
- siginit (EV_A);
-
-#ifndef WIN32
- ev_signal_init (&childev, childcb, SIGCHLD);
- ev_set_priority (&childev, EV_MAXPRI);
- ev_signal_start (EV_A_ &childev);
- ev_unref (EV_A); /* child watcher should not keep loop alive */
+void
+loop_destroy (EV_P)
+{
+#if EV_USE_KQUEUE
+ if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
+#endif
+#if EV_USE_EPOLL
+ if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
+#endif
+#if EV_USE_POLL
+ if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
+#endif
+#if EV_USE_SELECT
+ if (method == EVMETHOD_SELECT) select_destroy (EV_A);
#endif
- }
- }
- return method;
+ method = 0;
+ /*TODO*/
}
-#ifdef EV_MULTIPLICITY
+void
+loop_fork (EV_P)
+{
+ /*TODO*/
+#if EV_USE_EPOLL
+ if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
+#endif
+#if EV_USE_KQUEUE
+ if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
+#endif
+}
+#if EV_MULTIPLICITY
struct ev_loop *
ev_loop_new (int methods)
{
loop_init (EV_A_ methods);
- return loop;
+ if (ev_method (EV_A))
+ return loop;
+
+ return 0;
}
void
-ev_loop_delete (EV_P)
+ev_loop_destroy (EV_P)
{
- /*TODO*/
+ loop_destroy (EV_A);
free (loop);
}
+void
+ev_loop_fork (EV_P)
+{
+ loop_fork (EV_A);
+}
+
+#endif
+
+#if EV_MULTIPLICITY
+struct ev_loop default_loop_struct;
+static struct ev_loop *default_loop;
+
+struct ev_loop *
#else
+static int default_loop;
int
-ev_init (int methods)
+#endif
+ev_default_loop (int methods)
{
- loop_init ();
-}
+ if (sigpipe [0] == sigpipe [1])
+ if (pipe (sigpipe))
+ return 0;
+ if (!default_loop)
+ {
+#if EV_MULTIPLICITY
+ struct ev_loop *loop = default_loop = &default_loop_struct;
+#else
+ default_loop = 1;
#endif
-/*****************************************************************************/
+ loop_init (EV_A_ methods);
-void
-ev_fork_prepare (void)
-{
- /* nop */
+ if (ev_method (EV_A))
+ {
+ ev_watcher_init (&sigev, sigcb);
+ ev_set_priority (&sigev, EV_MAXPRI);
+ siginit (EV_A);
+
+#ifndef WIN32
+ ev_signal_init (&childev, childcb, SIGCHLD);
+ ev_set_priority (&childev, EV_MAXPRI);
+ ev_signal_start (EV_A_ &childev);
+ ev_unref (EV_A); /* child watcher should not keep loop alive */
+#endif
+ }
+ else
+ default_loop = 0;
+ }
+
+ return default_loop;
}
void
-ev_fork_parent (void)
+ev_default_destroy (void)
{
- /* nop */
+#if EV_MULTIPLICITY
+ struct ev_loop *loop = default_loop;
+#endif
+
+ ev_ref (EV_A); /* child watcher */
+ ev_signal_stop (EV_A_ &childev);
+
+ ev_ref (EV_A); /* signal watcher */
+ ev_io_stop (EV_A_ &sigev);
+
+ close (sigpipe [0]); sigpipe [0] = 0;
+ close (sigpipe [1]); sigpipe [1] = 0;
+
+ loop_destroy (EV_A);
}
void
-ev_fork_child (void)
+ev_default_fork (void)
{
- /*TODO*/
-#if !EV_MULTIPLICITY
-#if EV_USE_EPOLL
- if (method == EVMETHOD_EPOLL)
- epoll_postfork_child (EV_A);
+#if EV_MULTIPLICITY
+ struct ev_loop *loop = default_loop;
#endif
+ loop_fork (EV_A);
+
ev_io_stop (EV_A_ &sigev);
close (sigpipe [0]);
close (sigpipe [1]);
pipe (sigpipe);
+
+ ev_ref (EV_A); /* signal watcher */
siginit (EV_A);
-#endif
}
/*****************************************************************************/
ev_stop (EV_A_ (W)w);
}
-#ifndef SA_RESTART
-# define SA_RESTART 0
-#endif
-
-void
-ev_signal_start (EV_P_ struct ev_signal *w)
-{
- if (ev_is_active (w))
- return;
-
- assert (("ev_signal_start called with illegal signal number", w->signum > 0));
-
- ev_start (EV_A_ (W)w, 1);
- array_needsize (signals, signalmax, w->signum, signals_init);
- wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
-
- if (!w->next)
- {
- struct sigaction sa;
- sa.sa_handler = sighandler;
- sigfillset (&sa.sa_mask);
- sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
- sigaction (w->signum, &sa, 0);
- }
-}
-
-void
-ev_signal_stop (EV_P_ struct ev_signal *w)
-{
- ev_clear_pending (EV_A_ (W)w);
- if (!ev_is_active (w))
- return;
-
- wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
- ev_stop (EV_A_ (W)w);
-
- if (!signals [w->signum - 1].head)
- signal (w->signum, SIG_DFL);
-}
-
void
ev_idle_start (EV_P_ struct ev_idle *w)
{
ev_stop (EV_A_ (W)w);
}
+#ifndef SA_RESTART
+# define SA_RESTART 0
+#endif
+
+void
+ev_signal_start (EV_P_ struct ev_signal *w)
+{
+#if EV_MULTIPLICITY
+ assert (("signal watchers are only supported in the default loop", loop == default_loop));
+#endif
+ if (ev_is_active (w))
+ return;
+
+ assert (("ev_signal_start called with illegal signal number", w->signum > 0));
+
+ ev_start (EV_A_ (W)w, 1);
+ array_needsize (signals, signalmax, w->signum, signals_init);
+ wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
+
+ if (!w->next)
+ {
+ struct sigaction sa;
+ sa.sa_handler = sighandler;
+ sigfillset (&sa.sa_mask);
+ sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
+ sigaction (w->signum, &sa, 0);
+ }
+}
+
+void
+ev_signal_stop (EV_P_ struct ev_signal *w)
+{
+ ev_clear_pending (EV_A_ (W)w);
+ if (!ev_is_active (w))
+ return;
+
+ wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
+ ev_stop (EV_A_ (W)w);
+
+ if (!signals [w->signum - 1].head)
+ signal (w->signum, SIG_DFL);
+}
+
void
ev_child_start (EV_P_ struct ev_child *w)
{
+#if EV_MULTIPLICITY
+ assert (("child watchers are only supported in the default loop", loop == default_loop));
+#endif
if (ev_is_active (w))
return;
}
}
-/*****************************************************************************/
-
-#if 0
-
-struct ev_io wio;
-
-static void
-sin_cb (struct ev_io *w, int revents)
-{
- fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
-}
-
-static void
-ocb (struct ev_timer *w, int revents)
-{
- //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
- ev_timer_stop (w);
- ev_timer_start (w);
-}
-
-static void
-scb (struct ev_signal *w, int revents)
-{
- fprintf (stderr, "signal %x,%d\n", revents, w->signum);
- ev_io_stop (&wio);
- ev_io_start (&wio);
-}
-
-static void
-gcb (struct ev_signal *w, int revents)
-{
- fprintf (stderr, "generic %x\n", revents);
-
-}
-
-int main (void)
-{
- ev_init (0);
-
- ev_io_init (&wio, sin_cb, 0, EV_READ);
- ev_io_start (&wio);
-
- struct ev_timer t[10000];
-
-#if 0
- int i;
- for (i = 0; i < 10000; ++i)
- {
- struct ev_timer *w = t + i;
- ev_watcher_init (w, ocb, i);
- ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
- ev_timer_start (w);
- if (drand48 () < 0.5)
- ev_timer_stop (w);
- }
-#endif
-
- struct ev_timer t1;
- ev_timer_init (&t1, ocb, 5, 10);
- ev_timer_start (&t1);
-
- struct ev_signal sig;
- ev_signal_init (&sig, scb, SIGQUIT);
- ev_signal_start (&sig);
-
- struct ev_check cw;
- ev_check_init (&cw, gcb);
- ev_check_start (&cw);
-
- struct ev_idle iw;
- ev_idle_init (&iw, gcb);
- ev_idle_start (&iw);
-
- ev_loop (0);
-
- return 0;
-}
-
-#endif
-
-
-
-
projects / software / libev.git / blobdiff