#include <signal.h>
#ifndef _WIN32
-# include <unistd.h>
# include <sys/time.h>
# include <sys/wait.h>
+# include <unistd.h>
#else
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
#if __GNUC__ >= 3
# define expect(expr,value) __builtin_expect ((expr),(value))
-# define inline static inline
+# define inline_size static inline /* inline for codesize */
+# if EV_MINIMAL
+# define noinline __attribute__ ((noinline))
+# define inline_speed static noinline
+# else
+# define noinline
+# define inline_speed static inline
+# endif
#else
# define expect(expr,value) (expr)
-# define inline static
+# define inline_speed static
+# define inline_minimal static
+# define noinline
#endif
#define expect_false(expr) expect ((expr) != 0, 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? */
static void (*syserr_cb)(const char *msg);
-void ev_set_syserr_cb (void (*cb)(const char *msg))
+void
+ev_set_syserr_cb (void (*cb)(const char *msg))
{
syserr_cb = cb;
}
-static void
+static void noinline
syserr (const char *msg)
{
if (!msg)
static void *(*alloc)(void *ptr, long size);
-void ev_set_allocator (void *(*cb)(void *ptr, long size))
+void
+ev_set_allocator (void *(*cb)(void *ptr, long size))
{
alloc = cb;
}
#endif
}
-inline ev_tstamp
+ev_tstamp inline_size
get_clock (void)
{
#if EV_USE_MONOTONIC
/*****************************************************************************/
-static void
-anfds_init (ANFD *base, int count)
-{
- while (count--)
- {
- base->head = 0;
- base->events = EV_NONE;
- base->reify = 0;
-
- ++base;
- }
-}
-
-void
+void noinline
ev_feed_event (EV_P_ void *w, int revents)
{
W w_ = (W)w;
return;
}
- if (expect_false (!w_->cb))
- return;
-
w_->pending = ++pendingcnt [ABSPRI (w_)];
array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
}
-static void
+void inline_size
queue_events (EV_P_ W *events, int eventcnt, int type)
{
int i;
ev_feed_event (EV_A_ events [i], type);
}
-inline void
+/*****************************************************************************/
+
+void inline_size
+anfds_init (ANFD *base, int count)
+{
+ while (count--)
+ {
+ base->head = 0;
+ base->events = EV_NONE;
+ base->reify = 0;
+
+ ++base;
+ }
+}
+
+void inline_speed
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;
fd_event (EV_A_ fd, revents);
}
-/*****************************************************************************/
-
-inline void
+void inline_size
fd_reify (EV_P)
{
int i;
{
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
fdchangecnt = 0;
}
-static void
+void inline_size
fd_change (EV_P_ int fd)
{
if (expect_false (anfds [fd].reify))
fdchanges [fdchangecnt - 1] = fd;
}
-static void
+void inline_speed
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);
}
}
-inline int
+int inline_size
fd_valid (int fd)
{
#ifdef _WIN32
}
/* called on EBADF to verify fds */
-static void
+static void noinline
fd_ebadf (EV_P)
{
int fd;
}
/* called on ENOMEM in select/poll to kill some fds and retry */
-static void
+static void noinline
fd_enomem (EV_P)
{
int fd;
}
/* usually called after fork if backend needs to re-arm all fds from scratch */
-static void
+static void noinline
fd_rearm_all (EV_P)
{
int fd;
/*****************************************************************************/
-static void
+void inline_speed
upheap (WT *heap, int k)
{
WT w = heap [k];
}
-static void
+void inline_speed
downheap (WT *heap, int N, int k)
{
WT w = heap [k];
((W)heap [k])->active = k + 1;
}
-inline void
+void inline_size
adjustheap (WT *heap, int N, int k)
{
upheap (heap, k);
static int sigpipe [2];
static sig_atomic_t volatile gotsig;
-static struct ev_io sigev;
+static ev_io sigev;
-static void
+void inline_size
signals_init (ANSIG *base, int count)
{
while (count--)
}
}
-void
+void noinline
ev_feed_signal_event (EV_P_ int signum)
{
WL w;
}
static void
-sigcb (EV_P_ struct ev_io *iow, int revents)
+sigcb (EV_P_ ev_io *iow, int revents)
{
int signum;
ev_feed_signal_event (EV_A_ signum + 1);
}
-static void
+void inline_size
fd_intern (int fd)
{
#ifdef _WIN32
#endif
}
-static void
+static void noinline
siginit (EV_P)
{
fd_intern (sigpipe [0]);
/*****************************************************************************/
-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)
+void inline_speed
+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* */
}
}
+#ifndef WCONTINUED
+# define WCONTINUED 0
+#endif
+
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);
+ /* some systems define WCONTINUED but then fail to support it (linux 2.4) */
+ if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
+ if (!WCONTINUED
+ || errno != EINVAL
+ || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED)))
+ return;
- child_reap (EV_A_ sw, pid, pid, status);
- child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
- }
+ /* 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 feed_event catches that */
}
#endif
}
/* return true if we are running with elevated privileges and should ignore env variables */
-static int
+int inline_size
enable_secure (void)
{
#ifdef _WIN32
/* have to use the microsoft-never-gets-it-right macro */
array_free (fdchange, EMPTY0);
array_free (timer, EMPTY0);
-#if EV_PERIODICS
+#if EV_PERIODIC_ENABLE
array_free (periodic, EMPTY0);
#endif
array_free (idle, EMPTY0);
/*****************************************************************************/
-static int
+int inline_size
any_pending (EV_P)
{
int pri;
return 0;
}
-inline void
+void inline_speed
call_pending (EV_P)
{
int pri;
if (expect_true (p->w))
{
+ assert (("non-pending watcher on pending list", p->w->pending));
+
p->w->pending = 0;
EV_CB_INVOKE (p->w, p->events);
}
}
}
-inline void
+void inline_size
timers_reify (EV_P)
{
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)));
}
}
-#if EV_PERIODICS
-inline void
+#if EV_PERIODIC_ENABLE
+void inline_size
periodics_reify (EV_P)
{
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)));
}
}
-static void
+static void noinline
periodics_reschedule (EV_P)
{
int i;
/* 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);
}
#endif
-inline int
+int inline_size
time_update_monotonic (EV_P)
{
mn_now = get_clock ();
}
}
-inline void
+void inline_size
time_update (EV_P)
{
int i;
{
ev_tstamp odiff = rtmn_diff;
- for (i = 4; --i; ) /* loop a few times, before making important decisions */
+ /* loop a few times, before making important decisions.
+ * on the choice of "4": one iteration isn't enough,
+ * in case we get preempted during the calls to
+ * ev_time and get_clock. a second call is almost guarenteed
+ * to succeed in that case, though. and looping a few more times
+ * doesn't hurt either as we only do this on time-jumps or
+ * in the unlikely event of getting preempted here.
+ */
+ for (i = 4; --i; )
{
rtmn_diff = ev_rt_now - mn_now;
now_floor = mn_now;
}
-# if EV_PERIODICS
+# if EV_PERIODIC_ENABLE
periodics_reschedule (EV_A);
# endif
/* no timer adjustment, as the monotonic clock doesn't jump */
if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
{
-#if EV_PERIODICS
+#if EV_PERIODIC_ENABLE
periodics_reschedule (EV_A);
#endif
if (block > to) block = to;
}
-#if EV_PERIODICS
+#if EV_PERIODIC_ENABLE
if (periodiccnt)
{
ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
/* queue pending timers and reschedule them */
timers_reify (EV_A); /* relative timers called last */
-#if EV_PERIODICS
+#if EV_PERIODIC_ENABLE
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);
/*****************************************************************************/
-inline void
+void inline_size
wlist_add (WL *head, WL elem)
{
elem->next = *head;
*head = elem;
}
-inline void
+void inline_size
wlist_del (WL *head, WL elem)
{
while (*head)
}
}
-inline void
+void inline_speed
ev_clear_pending (EV_P_ W w)
{
if (w->pending)
}
}
-inline void
+void inline_speed
ev_start (EV_P_ W w, int active)
{
if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
ev_ref (EV_A);
}
-inline void
+void inline_size
ev_stop (EV_P_ W w)
{
ev_unref (EV_A);
/*****************************************************************************/
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
+#if EV_PERIODIC_ENABLE
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)))
return;
- idles [((W)w)->active - 1] = idles [--idlecnt];
+ {
+ int active = ((W)w)->active;
+ idles [active - 1] = idles [--idlecnt];
+ ((W)idles [active - 1])->active = active;
+ }
+
ev_stop (EV_A_ (W)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)))
return;
- prepares [((W)w)->active - 1] = prepares [--preparecnt];
+ {
+ int active = ((W)w)->active;
+ prepares [active - 1] = prepares [--preparecnt];
+ ((W)prepares [active - 1])->active = active;
+ }
+
ev_stop (EV_A_ (W)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)))
return;
- checks [((W)w)->active - 1] = checks [--checkcnt];
+ {
+ int active = ((W)w)->active;
+ checks [active - 1] = checks [--checkcnt];
+ ((W)checks [active - 1])->active = active;
+ }
+
ev_stop (EV_A_ (W)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
+#if EV_EMBED_ENABLE
+void noinline
+ev_embed_sweep (EV_P_ ev_embed *w)
+{
+ ev_loop (w->loop, EVLOOP_NONBLOCK);
+}
+
static void
-embed_cb (EV_P_ struct ev_io *io, int revents)
+embed_cb (EV_P_ ev_io *io, int revents)
{
- struct ev_embed *w = (struct ev_embed *)(((char *)io) - offsetof (struct ev_embed, io));
+ ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
- ev_feed_event (EV_A_ (W)w, EV_EMBED);
- ev_loop (w->loop, EVLOOP_NONBLOCK);
+ 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_ struct ev_embed *w)
+ev_embed_start (EV_P_ ev_embed *w)
{
if (expect_false (ev_is_active (w)))
return;
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_ struct ev_embed *w)
+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
+
+#if EV_STAT_ENABLE
+
+# ifdef _WIN32
+# define lstat(a,b) stat(a,b)
+# endif
+
+void
+ev_stat_stat (EV_P_ ev_stat *w)
+{
+ if (lstat (w->path, &w->attr) < 0)
+ w->attr.st_nlink = 0;
+ else if (!w->attr.st_nlink)
+ w->attr.st_nlink = 1;
+}
+
+static void
+stat_timer_cb (EV_P_ ev_timer *w_, int revents)
+{
+ ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
+
+ /* we copy this here each the time so that */
+ /* prev has the old value when the callback gets invoked */
+ w->prev = w->attr;
+ ev_stat_stat (EV_A_ w);
+
+ if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata)))
+ ev_feed_event (EV_A_ w, EV_STAT);
+}
+
+void
+ev_stat_start (EV_P_ ev_stat *w)
+{
+ if (expect_false (ev_is_active (w)))
+ return;
+
+ /* since we use memcmp, we need to clear any padding data etc. */
+ memset (&w->prev, 0, sizeof (ev_statdata));
+ memset (&w->attr, 0, sizeof (ev_statdata));
+
+ ev_stat_stat (EV_A_ w);
+
+ ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval);
+ ev_set_priority (&w->timer, ev_priority (w));
+ ev_timer_start (EV_A_ &w->timer);
+
+ ev_start (EV_A_ (W)w, 1);
+}
+
+void
+ev_stat_stop (EV_P_ ev_stat *w)
+{
+ ev_clear_pending (EV_A_ (W)w);
+ if (expect_false (!ev_is_active (w)))
+ return;
+
+ ev_timer_stop (EV_A_ &w->timer);
+
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);
}
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