X-Git-Url: https://git.llucax.com/software/libev.git/blobdiff_plain/f776d56f36abeed4a6091c2ec9b96363213ce2b2..d5b686568688adf526735190000d81a260db6c36:/ev.c

diff --git a/ev.c b/ev.c
index 7af2358..53491e1 100644
--- a/ev.c
+++ b/ev.c
@@ -94,6 +94,14 @@
 # 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
@@ -139,6 +147,12 @@ typedef struct ev_watcher_time *WT;
 
 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
+
 /*****************************************************************************/
 
 typedef struct
@@ -226,6 +240,17 @@ ev_now (EV_P)
       cur = newcnt;					\
     }
 
+#define array_slim(stem)					\
+  if (stem ## max < array_roundsize (stem ## cnt >> 2))		\
+    {								\
+      stem ## max = array_roundsize (stem ## cnt >> 1);		\
+      base = realloc (base, sizeof (*base) * (stem ## max));	\
+      fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
+    }
+
+#define array_free(stem, idx) \
+  free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
+
 /*****************************************************************************/
 
 static void
@@ -300,11 +325,8 @@ fd_reify (EV_P)
 
       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;
@@ -351,9 +373,9 @@ fd_ebadf (EV_P)
 static void
 fd_enomem (EV_P)
 {
-  int fd = anfdmax;
+  int fd;
 
-  while (fd--)
+  for (fd = anfdmax; fd--; )
     if (anfds [fd].events)
       {
         close (fd);
@@ -387,12 +409,12 @@ upheap (WT *heap, int k)
   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;
 
 }
 
@@ -412,12 +434,12 @@ downheap (WT *heap, int N, int k)
         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;
 }
 
 /*****************************************************************************/
@@ -450,6 +472,10 @@ signals_init (ANSIG *base, int count)
 static void
 sighandler (int signum)
 {
+#if WIN32
+  signal (signum, sighandler);
+#endif
+
   signals [signum - 1].gotsig = 1;
 
   if (!gotsig)
@@ -516,9 +542,9 @@ child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
   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);
       }
 }
@@ -610,6 +636,9 @@ loop_init (EV_P_ int methods)
           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
@@ -628,6 +657,11 @@ loop_init (EV_P_ int methods)
 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
@@ -641,6 +675,16 @@ loop_destroy (EV_P)
   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*/
 }
@@ -792,15 +836,17 @@ call_pending (EV_P)
 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
@@ -813,15 +859,17 @@ timers_reify (EV_P)
 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
@@ -843,7 +891,7 @@ periodics_reschedule (EV_P)
 
       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)
             {
@@ -914,7 +962,7 @@ time_update (EV_P)
 
           /* 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;
@@ -975,13 +1023,13 @@ ev_loop (EV_P_ int flags)
 
           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;
             }
 
@@ -1108,7 +1156,7 @@ ev_timer_start (EV_P_ struct ev_timer *w)
   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.));
 
@@ -1116,6 +1164,8 @@ ev_timer_start (EV_P_ struct ev_timer *w)
   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
@@ -1125,13 +1175,15 @@ ev_timer_stop (EV_P_ struct ev_timer *w)
   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);
 }
@@ -1143,8 +1195,8 @@ ev_timer_again (EV_P_ struct ev_timer *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);
@@ -1163,12 +1215,14 @@ ev_periodic_start (EV_P_ struct ev_periodic *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
@@ -1178,10 +1232,12 @@ ev_periodic_stop (EV_P_ struct ev_periodic *w)
   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);
@@ -1205,7 +1261,7 @@ ev_idle_stop (EV_P_ struct ev_idle *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);
 }
 
@@ -1227,7 +1283,7 @@ ev_prepare_stop (EV_P_ struct ev_prepare *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);
 }
 
@@ -1249,7 +1305,7 @@ ev_check_stop (EV_P_ struct ev_check *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);
 }
 
@@ -1272,13 +1328,17 @@ ev_signal_start (EV_P_ struct ev_signal *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
     }
 }