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master
Marc Alexander Lehmann 2007-11-01 11:11:22 +00:00
parent 9f919c2d1e
commit b3b3a857d8
3 changed files with 48 additions and 32 deletions
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46
ev.c
View File

@ -141,7 +141,8 @@ get_clock (void)
typedef struct
{
struct ev_io *head;
int events;
unsigned char events;
unsigned char reify;
} ANFD;
static ANFD *anfds;
@ -154,6 +155,8 @@ anfds_init (ANFD *base, int count)
{
base->head = 0;
base->events = EV_NONE;
base->reify = 0;
++base;
}
}
@ -227,7 +230,7 @@ fd_reify (void)
for (w = anfd->head; w; w = w->next)
events |= w->events;
anfd->events &= ~EV_REIFY;
anfd->reify = 0;
if (anfd->events != events)
{
@ -242,10 +245,10 @@ fd_reify (void)
static void
fd_change (int fd)
{
if (anfds [fd].events & EV_REIFY || fdchangecnt < 0)
if (anfds [fd].reify || fdchangecnt < 0)
return;
anfds [fd].events |= EV_REIFY;
anfds [fd].reify = 1;
++fdchangecnt;
array_needsize (fdchanges, fdchangemax, fdchangecnt, );
@ -264,7 +267,7 @@ fd_recheck (void)
while (anfds [fd].head)
{
ev_io_stop (anfds [fd].head);
event ((W)anfds [fd].head, EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT);
event ((W)anfds [fd].head, EV_ERROR | EV_READ | EV_WRITE);
}
}
@ -339,6 +342,7 @@ signals_init (ANSIG *base, int count)
{
base->head = 0;
base->gotsig = 0;
++base;
}
}
@ -540,8 +544,8 @@ timers_reify (void)
/* first reschedule or stop timer */
if (w->repeat)
{
assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
w->at = now + w->repeat;
assert (("timer timeout in the past, negative repeat?", w->at > now));
downheap ((WT *)timers, timercnt, 0);
}
else
@ -562,13 +566,13 @@ periodics_reify (void)
if (w->interval)
{
w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;
assert (("periodic timeout in the past, negative interval?", w->at > ev_now));
assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));
downheap ((WT *)periodics, periodiccnt, 0);
}
else
ev_periodic_stop (w); /* nonrepeating: stop timer */
event ((W)w, EV_TIMEOUT);
event ((W)w, EV_PERIODIC);
}
}
@ -733,7 +737,7 @@ wlist_del (WL *head, WL elem)
}
static void
ev_clear (W w)
ev_clear_pending (W w)
{
if (w->pending)
{
@ -764,6 +768,8 @@ ev_io_start (struct ev_io *w)
int fd = w->fd;
assert (("ev_io_start called with negative fd", fd >= 0));
ev_start ((W)w, 1);
array_needsize (anfds, anfdmax, fd + 1, anfds_init);
wlist_add ((WL *)&anfds[fd].head, (WL)w);
@ -774,7 +780,7 @@ ev_io_start (struct ev_io *w)
void
ev_io_stop (struct ev_io *w)
{
ev_clear ((W)w);
ev_clear_pending ((W)w);
if (!ev_is_active (w))
return;
@ -792,7 +798,7 @@ ev_timer_start (struct ev_timer *w)
w->at += now;
assert (("timer repeat value less than zero not allowed", w->repeat >= 0.));
assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
ev_start ((W)w, ++timercnt);
array_needsize (timers, timermax, timercnt, );
@ -803,7 +809,7 @@ ev_timer_start (struct ev_timer *w)
void
ev_timer_stop (struct ev_timer *w)
{
ev_clear ((W)w);
ev_clear_pending ((W)w);
if (!ev_is_active (w))
return;
@ -841,7 +847,7 @@ ev_periodic_start (struct ev_periodic *w)
if (ev_is_active (w))
return;
assert (("periodic interval value less than zero not allowed", w->interval >= 0.));
assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
/* this formula differs from the one in periodic_reify because we do not always round up */
if (w->interval)
@ -856,7 +862,7 @@ ev_periodic_start (struct ev_periodic *w)
void
ev_periodic_stop (struct ev_periodic *w)
{
ev_clear ((W)w);
ev_clear_pending ((W)w);
if (!ev_is_active (w))
return;
@ -875,6 +881,8 @@ ev_signal_start (struct ev_signal *w)
if (ev_is_active (w))
return;
assert (("ev_signal_start called with illegal signal number", w->signum > 0));
ev_start ((W)w, 1);
array_needsize (signals, signalmax, w->signum, signals_init);
wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
@ -892,7 +900,7 @@ ev_signal_start (struct ev_signal *w)
void
ev_signal_stop (struct ev_signal *w)
{
ev_clear ((W)w);
ev_clear_pending ((W)w);
if (!ev_is_active (w))
return;
@ -917,7 +925,7 @@ ev_idle_start (struct ev_idle *w)
void
ev_idle_stop (struct ev_idle *w)
{
ev_clear ((W)w);
ev_clear_pending ((W)w);
if (ev_is_active (w))
return;
@ -939,7 +947,7 @@ ev_prepare_start (struct ev_prepare *w)
void
ev_prepare_stop (struct ev_prepare *w)
{
ev_clear ((W)w);
ev_clear_pending ((W)w);
if (ev_is_active (w))
return;
@ -961,7 +969,7 @@ ev_check_start (struct ev_check *w)
void
ev_check_stop (struct ev_check *w)
{
ev_clear ((W)w);
ev_clear_pending ((W)w);
if (ev_is_active (w))
return;
@ -982,7 +990,7 @@ ev_child_start (struct ev_child *w)
void
ev_child_stop (struct ev_child *w)
{
ev_clear ((W)w);
ev_clear_pending ((W)w);
if (ev_is_active (w))
return;

32
ev.h
View File

@ -33,18 +33,18 @@
typedef double ev_tstamp;
/* 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_REIFY 0x04 /* private */
#define EV_TIMEOUT 0x000100
#define EV_SIGNAL 0x000200
#define EV_IDLE 0x000400
#define EV_CHECK 0x000800
#define EV_PREPARE 0x001000
#define EV_CHILD 0x002000
#define EV_ERROR 0x800000 /* sent when an error occurs */
#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 */
#ifndef EV_COMMON
@ -95,6 +95,7 @@ struct ev_watcher_time {
};
/* invoked after a specific time, repeatable (based on monotonic clock) */
/* revent EV_TIMEOUT */
struct ev_timer
{
EV_WATCHER_TIME (ev_timer);
@ -103,6 +104,7 @@ struct ev_timer
};
/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
/* revent EV_PERIODIC */
struct ev_periodic
{
EV_WATCHER_TIME (ev_periodic);
@ -111,6 +113,7 @@ struct ev_periodic
};
/* invoked when fd is either EV_READable or EV_WRITEable */
/* revent EV_READ, EV_WRITE */
struct ev_io
{
EV_WATCHER_LIST (ev_io);
@ -120,6 +123,7 @@ struct ev_io
};
/* invoked when the given signal has been received */
/* revent EV_SIGNAL */
struct ev_signal
{
EV_WATCHER_LIST (ev_signal);
@ -128,6 +132,7 @@ struct ev_signal
};
/* invoked when the nothing else needs to be done, keeps the process from blocking */
/* revent EV_IDLE */
struct ev_idle
{
EV_WATCHER (ev_idle);
@ -135,18 +140,21 @@ struct ev_idle
/* 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
{
EV_WATCHER (ev_prepare);
};
/* invoked for each run of the mainloop, just after the blocking call */
/* revent EV_CHECK */
struct ev_check
{
EV_WATCHER (ev_check);
};
/* invoked when sigchld is received and waitpid indicates the givne pid */
/* revent EV_CHILD */
struct ev_child
{
EV_WATCHER_LIST (ev_child);

2
ev_epoll.c
View File

@ -55,7 +55,7 @@ epoll_postfork_child (void)
/* re-register interest in fds */
for (fd = 0; fd < anfdmax; ++fd)
if (anfds [fd].events && !(anfds [fd].events & EV_REIFY))//D
if (anfds [fd].events)//D
epoll_modify (fd, EV_NONE, anfds [fd].events);
}