* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
#ifndef EV_STANDALONE
# include "config.h"
# if HAVE_CLOCK_GETTIME
-# define EV_USE_MONOTONIC 1
-# define EV_USE_REALTIME 1
+# ifndef EV_USE_MONOTONIC
+# define EV_USE_MONOTONIC 1
+# endif
+# ifndef EV_USE_REALTIME
+# define EV_USE_REALTIME 1
+# endif
# endif
-# if HAVE_SELECT && HAVE_SYS_SELECT_H
+# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
# define EV_USE_SELECT 1
# endif
-# if HAVE_POLL && HAVE_POLL_H
+# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
# define EV_USE_POLL 1
# endif
-# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
+# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
# define EV_USE_EPOLL 1
# endif
-# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
+# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
# define EV_USE_KQUEUE 1
# endif
#include <signal.h>
-#ifndef WIN32
+#ifndef _WIN32
# include <unistd.h>
# include <sys/time.h>
# include <sys/wait.h>
+#else
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+# ifndef EV_SELECT_IS_WINSOCKET
+# define EV_SELECT_IS_WINSOCKET 1
+# endif
#endif
+
/**/
#ifndef EV_USE_MONOTONIC
#ifndef EV_USE_SELECT
# define EV_USE_SELECT 1
+# define EV_SELECT_USE_FD_SET 1
#endif
#ifndef EV_USE_POLL
-# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
+# ifdef _WIN32
+# define EV_USE_POLL 0
+# else
+# define EV_USE_POLL 1
+# endif
#endif
#ifndef EV_USE_EPOLL
# define EV_USE_KQUEUE 0
#endif
-#ifndef EV_USE_WIN32
-# ifdef WIN32
-# define EV_USE_WIN32 0 /* it does not exist, use select */
-# undef EV_USE_SELECT
-# define EV_USE_SELECT 1
-# else
-# define EV_USE_WIN32 0
-# endif
-#endif
-
#ifndef EV_USE_REALTIME
# define EV_USE_REALTIME 1
#endif
/**/
+/* 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 EV_USE_REALTIME 0
#endif
+#if EV_SELECT_IS_WINSOCKET
+# include <winsock.h>
+#endif
+
/**/
#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
#define ABSPRI(w) ((w)->priority - EV_MINPRI)
+#define EMPTY /* required for microsofts broken pseudo-c compiler */
+
typedef struct ev_watcher *W;
typedef struct ev_watcher_list *WL;
typedef struct ev_watcher_time *WT;
static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
-#include "ev_win32.c"
+#ifdef _WIN32
+# include "ev_win32.c"
+#endif
/*****************************************************************************/
WL head;
unsigned char events;
unsigned char reify;
+#if EV_SELECT_IS_WINSOCKET
+ SOCKET handle;
+#endif
} ANFD;
typedef struct
struct ev_loop
{
+ ev_tstamp ev_rt_now;
+ #define ev_rt_now ((loop)->ev_rt_now)
#define VAR(name,decl) decl;
#include "ev_vars.h"
#undef VAR
#else
+ ev_tstamp ev_rt_now;
#define VAR(name,decl) static decl;
#include "ev_vars.h"
#undef VAR
/*****************************************************************************/
-inline ev_tstamp
+ev_tstamp
ev_time (void)
{
#if EV_USE_REALTIME
return ev_time ();
}
+#if EV_MULTIPLICITY
ev_tstamp
ev_now (EV_P)
{
- return rt_now;
+ return ev_rt_now;
}
+#endif
-#define array_roundsize(type,n) ((n) | 4 & ~3)
+#define array_roundsize(type,n) (((n) | 4) & ~3)
#define array_needsize(type,base,cur,cnt,init) \
if (expect_false ((cnt) > cur)) \
fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
}
-/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
-/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
-#define array_free_microshit(stem) \
- ev_free (stem ## s); stem ## cnt = stem ## max = 0;
-
#define array_free(stem, idx) \
ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
events |= w->events;
+#if EV_SELECT_IS_WINSOCKET
+ if (events)
+ {
+ unsigned long argp;
+ anfd->handle = _get_osfhandle (fd);
+ assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
+ }
+#endif
+
anfd->reify = 0;
method_modify (EV_A_ fd, anfd->events, events);
static int
fd_valid (int fd)
{
-#ifdef WIN32
- return !!win32_get_osfhandle (fd);
+#ifdef _WIN32
+ return _get_osfhandle (fd) != -1;
#else
return fcntl (fd, F_GETFD) != -1;
#endif
((W)heap [k])->active = k + 1;
}
+inline void
+adjustheap (WT *heap, int N, int k)
+{
+ upheap (heap, k);
+ downheap (heap, N, k);
+}
+
/*****************************************************************************/
typedef struct
static void
sighandler (int signum)
{
-#if WIN32
+#if _WIN32
signal (signum, sighandler);
#endif
{
int old_errno = errno;
gotsig = 1;
-#ifdef WIN32
- send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
-#else
write (sigpipe [1], &signum, 1);
-#endif
errno = old_errno;
}
}
{
int signum;
-#ifdef WIN32
- recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
-#else
read (sigpipe [0], &revents, 1);
-#endif
gotsig = 0;
for (signum = signalmax; signum--; )
ev_feed_signal_event (EV_A_ signum + 1);
}
+inline void
+fd_intern (int fd)
+{
+#ifdef _WIN32
+ int arg = 1;
+ ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
+#else
+ fcntl (fd, F_SETFD, FD_CLOEXEC);
+ fcntl (fd, F_SETFL, O_NONBLOCK);
+#endif
+}
+
static void
siginit (EV_P)
{
-#ifndef WIN32
- fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
- fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
-
- /* rather than sort out wether we really need nb, set it */
- fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
- fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
-#endif
+ fd_intern (sigpipe [0]);
+ fd_intern (sigpipe [1]);
ev_io_set (&sigev, sigpipe [0], EV_READ);
ev_io_start (EV_A_ &sigev);
static struct ev_child *childs [PID_HASHSIZE];
-#ifndef WIN32
+#ifndef _WIN32
static struct ev_signal childev;
static int
enable_secure (void)
{
-#ifdef WIN32
+#ifdef _WIN32
return 0;
#else
return getuid () != geteuid ()
}
static void
-loop_init (EV_P_ int methods)
+loop_init (EV_P_ unsigned int flags)
{
if (!method)
{
}
#endif
- rt_now = ev_time ();
+ ev_rt_now = ev_time ();
mn_now = get_clock ();
now_floor = mn_now;
- rtmn_diff = rt_now - mn_now;
+ rtmn_diff = ev_rt_now - mn_now;
+
+ if (!(flags & EVMETHOD_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
+ flags = atoi (getenv ("LIBEV_FLAGS"));
- if (methods == EVMETHOD_AUTO)
- if (!enable_secure () && getenv ("LIBEV_METHODS"))
- methods = atoi (getenv ("LIBEV_METHODS"));
- else
- methods = EVMETHOD_ANY;
+ if (!(flags & 0x0000ffff))
+ flags |= 0x0000ffff;
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);
+ if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
#endif
#if EV_USE_EPOLL
- if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
+ if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
#endif
#if EV_USE_POLL
- if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
+ if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
#endif
#if EV_USE_SELECT
- if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
+ if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
#endif
ev_init (&sigev, sigcb);
{
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
array_free (pending, [i]);
/* have to use the microsoft-never-gets-it-right macro */
- array_free_microshit (fdchange);
- array_free_microshit (timer);
- array_free_microshit (periodic);
- array_free_microshit (idle);
- array_free_microshit (prepare);
- array_free_microshit (check);
+ array_free (fdchange, EMPTY);
+ array_free (timer, EMPTY);
+#if EV_PERIODICS
+ array_free (periodic, EMPTY);
+#endif
+ array_free (idle, EMPTY);
+ array_free (prepare, EMPTY);
+ array_free (check, EMPTY);
method = 0;
}
#if EV_MULTIPLICITY
struct ev_loop *
-ev_loop_new (int methods)
+ev_loop_new (unsigned int flags)
{
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);
+ loop_init (EV_A_ flags);
if (ev_method (EV_A))
return loop;
#else
int
#endif
-ev_default_loop (int methods)
+ev_default_loop (unsigned int methods)
{
if (sigpipe [0] == sigpipe [1])
if (pipe (sigpipe))
{
siginit (EV_A);
-#ifndef WIN32
+#ifndef _WIN32
ev_signal_init (&childev, childcb, SIGCHLD);
ev_set_priority (&childev, EV_MAXPRI);
ev_signal_start (EV_A_ &childev);
struct ev_loop *loop = default_loop;
#endif
-#ifndef WIN32
+#ifndef _WIN32
ev_ref (EV_A); /* child watcher */
ev_signal_stop (EV_A_ &childev);
#endif
if (w->repeat)
{
assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
- ((WT)w)->at = mn_now + w->repeat;
+
+ ((WT)w)->at += w->repeat;
+ if (((WT)w)->at < mn_now)
+ ((WT)w)->at = mn_now;
+
downheap ((WT *)timers, timercnt, 0);
}
else
}
}
+#if EV_PERIODICS
static void
periodics_reify (EV_P)
{
- while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
+ while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
{
struct ev_periodic *w = periodics [0];
/* first reschedule or stop timer */
if (w->reschedule_cb)
{
- ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
-
- assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
+ ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
+ assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
downheap ((WT *)periodics, periodiccnt, 0);
}
else if (w->interval)
{
- ((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));
+ ((WT)w)->at += floor ((ev_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 > ev_rt_now));
downheap ((WT *)periodics, periodiccnt, 0);
}
else
struct ev_periodic *w = periodics [i];
if (w->reschedule_cb)
- ((WT)w)->at = w->reschedule_cb (w, rt_now);
+ ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
else if (w->interval)
- ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
+ ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
}
/* now rebuild the heap */
for (i = periodiccnt >> 1; i--; )
downheap ((WT *)periodics, periodiccnt, i);
}
+#endif
inline int
time_update_monotonic (EV_P)
if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
{
- rt_now = rtmn_diff + mn_now;
+ ev_rt_now = rtmn_diff + mn_now;
return 0;
}
else
{
now_floor = mn_now;
- rt_now = ev_time ();
+ ev_rt_now = ev_time ();
return 1;
}
}
for (i = 4; --i; ) /* loop a few times, before making important decisions */
{
- rtmn_diff = rt_now - mn_now;
+ rtmn_diff = ev_rt_now - mn_now;
if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
return; /* all is well */
- rt_now = ev_time ();
+ ev_rt_now = ev_time ();
mn_now = get_clock ();
now_floor = mn_now;
}
+# if EV_PERIODICS
periodics_reschedule (EV_A);
+# endif
/* no timer adjustment, as the monotonic clock doesn't jump */
/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
}
else
#endif
{
- rt_now = ev_time ();
+ ev_rt_now = ev_time ();
- if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
+ if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
{
+#if EV_PERIODICS
periodics_reschedule (EV_A);
+#endif
/* adjust timers. this is easy, as the offset is the same for all */
for (i = 0; i < timercnt; ++i)
- ((WT)timers [i])->at += rt_now - mn_now;
+ ((WT)timers [i])->at += ev_rt_now - mn_now;
}
- mn_now = rt_now;
+ mn_now = ev_rt_now;
}
}
else
#endif
{
- rt_now = ev_time ();
- mn_now = rt_now;
+ ev_rt_now = ev_time ();
+ mn_now = ev_rt_now;
}
if (flags & EVLOOP_NONBLOCK || idlecnt)
if (block > to) block = to;
}
+#if EV_PERIODICS
if (periodiccnt)
{
- ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
+ ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
if (block > to) block = to;
}
+#endif
if (block < 0.) block = 0.;
}
method_poll (EV_A_ block);
- /* update rt_now, do magic */
+ /* update ev_rt_now, do magic */
time_update (EV_A);
/* queue pending timers and reschedule them */
timers_reify (EV_A); /* relative timers called last */
+#if EV_PERIODICS
periodics_reify (EV_A); /* absolute timers called first */
+#endif
/* queue idle watchers unless io or timers are pending */
if (idlecnt && !any_pending (EV_A))
if (!ev_is_active (w))
return;
+ assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
+
wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
ev_stop (EV_A_ (W)w);
if (((W)w)->active < timercnt--)
{
timers [((W)w)->active - 1] = timers [timercnt];
- downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
+ adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
}
- ((WT)w)->at = w->repeat;
+ ((WT)w)->at -= mn_now;
ev_stop (EV_A_ (W)w);
}
if (w->repeat)
{
((WT)w)->at = mn_now + w->repeat;
- downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
+ adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
}
else
ev_timer_stop (EV_A_ w);
ev_timer_start (EV_A_ w);
}
+#if EV_PERIODICS
void
ev_periodic_start (EV_P_ struct ev_periodic *w)
{
return;
if (w->reschedule_cb)
- ((WT)w)->at = w->reschedule_cb (w, rt_now);
+ ((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
else if (w->interval)
{
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 */
- ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
+ ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
}
ev_start (EV_A_ (W)w, ++periodiccnt);
if (((W)w)->active < periodiccnt--)
{
periodics [((W)w)->active - 1] = periodics [periodiccnt];
- downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
+ adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
}
ev_stop (EV_A_ (W)w);
void
ev_periodic_again (EV_P_ struct ev_periodic *w)
{
+ /* TODO: use adjustheap and recalculation */
ev_periodic_stop (EV_A_ w);
ev_periodic_start (EV_A_ w);
}
+#endif
void
ev_idle_start (EV_P_ struct ev_idle *w)
ev_idle_stop (EV_P_ struct ev_idle *w)
{
ev_clear_pending (EV_A_ (W)w);
- if (ev_is_active (w))
+ if (!ev_is_active (w))
return;
idles [((W)w)->active - 1] = idles [--idlecnt];
ev_prepare_stop (EV_P_ struct ev_prepare *w)
{
ev_clear_pending (EV_A_ (W)w);
- if (ev_is_active (w))
+ if (!ev_is_active (w))
return;
prepares [((W)w)->active - 1] = prepares [--preparecnt];
ev_check_stop (EV_P_ struct ev_check *w)
{
ev_clear_pending (EV_A_ (W)w);
- if (ev_is_active (w))
+ if (!ev_is_active (w))
return;
checks [((W)w)->active - 1] = checks [--checkcnt];
if (!((WL)w)->next)
{
-#if WIN32
+#if _WIN32
signal (w->signum, sighandler);
#else
struct sigaction sa;
ev_child_stop (EV_P_ struct ev_child *w)
{
ev_clear_pending (EV_A_ (W)w);
- if (ev_is_active (w))
+ if (!ev_is_active (w))
return;
wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
}
}
+#ifdef __cplusplus
+}
+#endif
+
projects / software / libev.git / blobdiff