* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#ifndef EV_EMBED
+#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
# define EV_USE_KQUEUE 0
#endif
+#ifndef EV_USE_WIN32
+# ifdef WIN32
+# define EV_USE_WIN32 1
+# else
+# define EV_USE_WIN32 0
+# endif
+#endif
+
#ifndef EV_USE_REALTIME
# define EV_USE_REALTIME 1
#endif
#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
-#ifndef EV_EMBED
-# include "ev.h"
-#endif
+#include "ev.h"
#if __GNUC__ >= 3
# define expect(expr,value) __builtin_expect ((expr),(value))
static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
+#if WIN32
+/* note: the comment below could not be substantiated, but what would I care */
+/* MSDN says this is required to handle SIGFPE */
+volatile double SIGFPE_REQ = 0.0f;
+#endif
+
+/*****************************************************************************/
+
+static void (*syserr_cb)(const char *msg);
+
+void ev_set_syserr_cb (void (*cb)(const char *msg))
+{
+ syserr_cb = cb;
+}
+
+static void
+syserr (const char *msg)
+{
+ if (!msg)
+ msg = "(libev) system error";
+
+ if (syserr_cb)
+ syserr_cb (msg);
+ else
+ {
+ perror (msg);
+ abort ();
+ }
+}
+
+static void *(*alloc)(void *ptr, long size);
+
+void ev_set_allocator (void *(*cb)(void *ptr, long size))
+{
+ alloc = cb;
+}
+
+static void *
+ev_realloc (void *ptr, long size)
+{
+ ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
+
+ if (!ptr && size)
+ {
+ fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
+ abort ();
+ }
+
+ return ptr;
+}
+
+#define ev_malloc(size) ev_realloc (0, (size))
+#define ev_free(ptr) ev_realloc ((ptr), 0)
+
/*****************************************************************************/
typedef struct
{
- struct ev_watcher_list *head;
+ WL head;
unsigned char events;
unsigned char reify;
} ANFD;
#define array_roundsize(base,n) ((n) | 4 & ~3)
-#define array_needsize(base,cur,cnt,init) \
- if (expect_false ((cnt) > cur)) \
- { \
- int newcnt = cur; \
- do \
- { \
- newcnt = array_roundsize (base, newcnt << 1); \
- } \
- while ((cnt) > newcnt); \
- \
- base = realloc (base, sizeof (*base) * (newcnt)); \
- init (base + cur, newcnt - cur); \
- cur = newcnt; \
+#define array_needsize(base,cur,cnt,init) \
+ if (expect_false ((cnt) > cur)) \
+ { \
+ int newcnt = cur; \
+ do \
+ { \
+ newcnt = array_roundsize (base, newcnt << 1); \
+ } \
+ while ((cnt) > newcnt); \
+ \
+ base = ev_realloc (base, sizeof (*base) * (newcnt)); \
+ init (base + cur, newcnt - cur); \
+ cur = newcnt; \
+ }
+
+#define array_slim(stem) \
+ if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
+ { \
+ stem ## max = array_roundsize (stem ## cnt >> 1); \
+ base = ev_realloc (base, sizeof (*base) * (stem ## max)); \
+ fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
}
+#define array_free(stem, idx) \
+ ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
+
/*****************************************************************************/
static void
anfd->reify = 0;
- if (anfd->events != events)
- {
- method_modify (EV_A_ fd, anfd->events, events);
- anfd->events = events;
- }
+ method_modify (EV_A_ fd, anfd->events, events);
+ anfd->events = events;
}
fdchangecnt = 0;
static void
fd_change (EV_P_ int fd)
{
- if (anfds [fd].reify || fdchangecnt < 0)
+ if (anfds [fd].reify)
return;
anfds [fd].reify = 1;
static void
fd_enomem (EV_P)
{
- int fd = anfdmax;
+ int fd;
- while (fd--)
+ for (fd = anfdmax; fd--; )
if (anfds [fd].events)
{
- close (fd);
fd_kill (EV_A_ fd);
return;
}
}
-/* susually called after fork if method needs to re-arm all fds from scratch */
+/* usually called after fork if method needs to re-arm all fds from scratch */
static void
fd_rearm_all (EV_P)
{
if (anfds [fd].events)
{
anfds [fd].events = 0;
- fd_change (fd);
+ fd_change (EV_A_ fd);
}
}
while (k && heap [k >> 1]->at > w->at)
{
heap [k] = heap [k >> 1];
- heap [k]->active = k + 1;
+ ((W)heap [k])->active = k + 1;
k >>= 1;
}
heap [k] = w;
- heap [k]->active = k + 1;
+ ((W)heap [k])->active = k + 1;
}
break;
heap [k] = heap [j];
- heap [k]->active = k + 1;
+ ((W)heap [k])->active = k + 1;
k = j;
}
heap [k] = w;
- heap [k]->active = k + 1;
+ ((W)heap [k])->active = k + 1;
}
/*****************************************************************************/
typedef struct
{
- struct ev_watcher_list *head;
+ WL head;
sig_atomic_t volatile gotsig;
} ANSIG;
static int sigpipe [2];
static sig_atomic_t volatile gotsig;
+static struct ev_io sigev;
static void
signals_init (ANSIG *base, int count)
static void
sighandler (int signum)
{
+#if WIN32
+ signal (signum, sighandler);
+#endif
+
signals [signum - 1].gotsig = 1;
if (!gotsig)
static void
sigcb (EV_P_ struct ev_io *iow, int revents)
{
- struct ev_watcher_list *w;
+ WL w;
int signum;
read (sigpipe [0], &revents, 1);
#ifndef WIN32
+static struct ev_child *childs [PID_HASHSIZE];
+static struct ev_signal childev;
+
#ifndef WCONTINUED
# define WCONTINUED 0
#endif
for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
if (w->pid == pid || !w->pid)
{
- w->priority = sw->priority; /* need to do it *now* */
- w->rpid = pid;
- w->rstatus = status;
+ ev_priority (w) = ev_priority (sw); /* need to do it *now* */
+ w->rpid = pid;
+ w->rstatus = status;
event (EV_A_ (W)w, EV_CHILD);
}
}
#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
methods = EVMETHOD_ANY;
method = 0;
+#if EV_USE_WIN32
+ if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
+#endif
#if EV_USE_KQUEUE
if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
#endif
#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
+
+ ev_watcher_init (&sigev, sigcb);
+ ev_set_priority (&sigev, EV_MAXPRI);
}
}
void
loop_destroy (EV_P)
{
+ int i;
+
+#if EV_USE_WIN32
+ if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
+#endif
#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_USEV_POLL
+#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
+ for (i = NUMPRI; i--; )
+ array_free (pending, [i]);
+
+ array_free (fdchange, );
+ array_free (timer, );
+ array_free (periodic, );
+ array_free (idle, );
+ array_free (prepare, );
+ array_free (check, );
+
method = 0;
- /*TODO*/
}
-void
+static 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_is_active (&sigev))
+ {
+ /* default loop */
+
+ ev_ref (EV_A);
+ ev_io_stop (EV_A_ &sigev);
+ close (sigpipe [0]);
+ close (sigpipe [1]);
+
+ while (pipe (sigpipe))
+ syserr ("(libev) error creating pipe");
+
+ siginit (EV_A);
+ }
+
+ postfork = 0;
}
#if EV_MULTIPLICITY
struct ev_loop *
ev_loop_new (int methods)
{
- struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));
+ struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
+
+ memset (loop, 0, sizeof (struct ev_loop));
loop_init (EV_A_ methods);
- if (ev_methods (EV_A))
+ if (ev_method (EV_A))
return loop;
return 0;
ev_loop_destroy (EV_P)
{
loop_destroy (EV_A);
- free (loop);
+ ev_free (loop);
}
void
ev_loop_fork (EV_P)
{
- loop_fork (EV_A);
+ postfork = 1;
}
#endif
if (ev_method (EV_A))
{
- ev_watcher_init (&sigev, sigcb);
- ev_set_priority (&sigev, EV_MAXPRI);
siginit (EV_A);
#ifndef WIN32
}
void
-ev_default_fork (EV_P)
+ev_default_fork (void)
{
- loop_fork (EV_A);
-
- ev_io_stop (EV_A_ &sigev);
- close (sigpipe [0]);
- close (sigpipe [1]);
- pipe (sigpipe);
+#if EV_MULTIPLICITY
+ struct ev_loop *loop = default_loop;
+#endif
- ev_ref (EV_A); /* signal watcher */
- siginit (EV_A);
+ if (method)
+ postfork = 1;
}
/*****************************************************************************/
static void
timers_reify (EV_P)
{
- while (timercnt && timers [0]->at <= mn_now)
+ while (timercnt && ((WT)timers [0])->at <= mn_now)
{
struct ev_timer *w = timers [0];
+ assert (("inactive timer on timer heap detected", ev_is_active (w)));
+
/* first reschedule or stop timer */
if (w->repeat)
{
assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
- w->at = mn_now + w->repeat;
+ ((WT)w)->at = mn_now + w->repeat;
downheap ((WT *)timers, timercnt, 0);
}
else
static void
periodics_reify (EV_P)
{
- while (periodiccnt && periodics [0]->at <= rt_now)
+ while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
{
struct ev_periodic *w = periodics [0];
+ assert (("inactive timer on periodic heap detected", ev_is_active (w)));
+
/* first reschedule or stop timer */
if (w->interval)
{
- w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;
- assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
+ ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
+ assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
downheap ((WT *)periodics, periodiccnt, 0);
}
else
if (w->interval)
{
- ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
+ ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
if (fabs (diff) >= 1e-4)
{
/* adjust timers. this is easy, as the offset is the same for all */
for (i = 0; i < timercnt; ++i)
- timers [i]->at += rt_now - mn_now;
+ ((WT)timers [i])->at += rt_now - mn_now;
}
mn_now = rt_now;
call_pending (EV_A);
}
+ /* we might have forked, so reify kernel state if necessary */
+ if (expect_false (postfork))
+ loop_fork (EV_A);
+
/* update fd-related kernel structures */
fd_reify (EV_A);
if (timercnt)
{
- ev_tstamp to = timers [0]->at - mn_now + method_fudge;
+ ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
if (block > to) block = to;
}
if (periodiccnt)
{
- ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
+ ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
if (block > to) block = to;
}
if (ev_is_active (w))
return;
- w->at += mn_now;
+ ((WT)w)->at += mn_now;
assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
array_needsize (timers, timermax, timercnt, );
timers [timercnt - 1] = w;
upheap ((WT *)timers, timercnt - 1);
+
+ assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
}
void
if (!ev_is_active (w))
return;
- if (w->active < timercnt--)
+ assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
+
+ if (((W)w)->active < timercnt--)
{
- timers [w->active - 1] = timers [timercnt];
- downheap ((WT *)timers, timercnt, w->active - 1);
+ timers [((W)w)->active - 1] = timers [timercnt];
+ downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
}
- w->at = w->repeat;
+ ((WT)w)->at = w->repeat;
ev_stop (EV_A_ (W)w);
}
{
if (w->repeat)
{
- w->at = mn_now + w->repeat;
- downheap ((WT *)timers, timercnt, w->active - 1);
+ ((WT)w)->at = mn_now + w->repeat;
+ downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
}
else
ev_timer_stop (EV_A_ w);
/* this formula differs from the one in periodic_reify because we do not always round up */
if (w->interval)
- w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
+ ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
ev_start (EV_A_ (W)w, ++periodiccnt);
array_needsize (periodics, periodicmax, periodiccnt, );
periodics [periodiccnt - 1] = w;
upheap ((WT *)periodics, periodiccnt - 1);
+
+ assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
}
void
if (!ev_is_active (w))
return;
- if (w->active < periodiccnt--)
+ assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
+
+ if (((W)w)->active < periodiccnt--)
{
- periodics [w->active - 1] = periodics [periodiccnt];
- downheap ((WT *)periodics, periodiccnt, w->active - 1);
+ periodics [((W)w)->active - 1] = periodics [periodiccnt];
+ downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
}
ev_stop (EV_A_ (W)w);
if (ev_is_active (w))
return;
- idles [w->active - 1] = idles [--idlecnt];
+ idles [((W)w)->active - 1] = idles [--idlecnt];
ev_stop (EV_A_ (W)w);
}
if (ev_is_active (w))
return;
- prepares [w->active - 1] = prepares [--preparecnt];
+ prepares [((W)w)->active - 1] = prepares [--preparecnt];
ev_stop (EV_A_ (W)w);
}
if (ev_is_active (w))
return;
- checks [w->active - 1] = checks [--checkcnt];
+ checks [((W)w)->active - 1] = checks [--checkcnt];
ev_stop (EV_A_ (W)w);
}
array_needsize (signals, signalmax, w->signum, signals_init);
wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
- if (!w->next)
+ if (!((WL)w)->next)
{
+#if WIN32
+ signal (w->signum, sighandler);
+#else
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);
+#endif
}
}
ev_io_stop (EV_A_ &once->io);
ev_timer_stop (EV_A_ &once->to);
- free (once);
+ ev_free (once);
cb (revents, arg);
}
void
ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
{
- struct ev_once *once = malloc (sizeof (struct ev_once));
+ struct ev_once *once = ev_malloc (sizeof (struct ev_once));
if (!once)
cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
projects / software / libev.git / blobdiff