X-Git-Url: https://git.llucax.com/software/libev.git/blobdiff_plain/7eebd23082204e2dce00017f483f1e876ba3079a..0ffac6413d8a4f24745442b7ecae189178e2ee03:/ev.c

diff --git a/ev.c b/ev.c
index c6ed4b3..76dc021 100644
--- a/ev.c
+++ b/ev.c
@@ -28,6 +28,11 @@
  * (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"
 
@@ -48,7 +53,7 @@
 #  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
 #  define EV_USE_KQUEUE 1
 # endif
 
@@ -128,7 +133,11 @@
 #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 */
 
-#include "ev.h"
+#ifdef EV_H
+# include EV_H
+#else
+# include "ev.h"
+#endif
 
 #if __GNUC__ >= 3
 # define expect(expr,value)         __builtin_expect ((expr),(value))
@@ -217,19 +226,26 @@ typedef struct
 
 #if EV_MULTIPLICITY
 
-struct ev_loop
-{
-# define VAR(name,decl) decl;
-# include "ev_vars.h"
-};
-# undef VAR
-# include "ev_wrap.h"
+  struct ev_loop
+  {
+    ev_tstamp ev_rt_now;
+    #define VAR(name,decl) decl;
+      #include "ev_vars.h"
+    #undef VAR
+  };
+  #include "ev_wrap.h"
+
+  struct ev_loop default_loop_struct;
+  static struct ev_loop *default_loop;
 
 #else
 
-# define VAR(name,decl) static decl;
-# include "ev_vars.h"
-# undef VAR
+  ev_tstamp ev_rt_now;
+  #define VAR(name,decl) static decl;
+    #include "ev_vars.h"
+  #undef VAR
+
+  static int default_loop;
 
 #endif
 
@@ -264,11 +280,13 @@ get_clock (void)
   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)
 
@@ -511,6 +529,18 @@ downheap (WT *heap, int N, int k)
   ((W)heap [k])->active = k + 1;
 }
 
+inline void
+adjustheap (WT *heap, int N, int k, ev_tstamp at)
+{
+  ev_tstamp old_at = heap [k]->at;
+  heap [k]->at = at;
+
+  if (old_at < at)
+    downheap (heap, N, k);
+  else
+    upheap (heap, k);
+}
+
 /*****************************************************************************/
 
 typedef struct
@@ -563,6 +593,8 @@ sighandler (int signum)
 void
 ev_feed_signal_event (EV_P_ int signum)
 {
+  WL w;
+
 #if EV_MULTIPLICITY
   assert (("feeding signal events is only supported in the default loop", loop == default_loop));
 #endif
@@ -581,7 +613,6 @@ ev_feed_signal_event (EV_P_ int signum)
 static void
 sigcb (EV_P_ struct ev_io *iow, int revents)
 {
-  WL w;
   int signum;
 
 #ifdef WIN32
@@ -593,7 +624,7 @@ sigcb (EV_P_ struct ev_io *iow, int revents)
 
   for (signum = signalmax; signum--; )
     if (signals [signum].gotsig)
-      sigevent (EV_A_ signum + 1);
+      ev_feed_signal_event (EV_A_ signum + 1);
 }
 
 static void
@@ -715,10 +746,10 @@ loop_init (EV_P_ int methods)
       }
 #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 (methods == EVMETHOD_AUTO)
         if (!enable_secure () && getenv ("LIBEV_METHODS"))
@@ -743,7 +774,7 @@ loop_init (EV_P_ int methods)
       if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
 #endif
 
-      ev_watcher_init (&sigev, sigcb);
+      ev_init (&sigev, sigcb);
       ev_set_priority (&sigev, EV_MAXPRI);
     }
 }
@@ -843,13 +874,8 @@ ev_loop_fork (EV_P)
 #endif
 
 #if EV_MULTIPLICITY
-struct ev_loop default_loop_struct;
-static struct ev_loop *default_loop;
-
 struct ev_loop *
 #else
-static int default_loop;
-
 int
 #endif
 ev_default_loop (int methods)
@@ -945,7 +971,7 @@ call_pending (EV_P)
         if (p->w)
           {
             p->w->pending = 0;
-            p->w->cb (EV_A_ p->w, p->events);
+            EV_CB_INVOKE (p->w, p->events);
           }
       }
 }
@@ -976,7 +1002,7 @@ timers_reify (EV_P)
 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];
 
@@ -985,15 +1011,15 @@ periodics_reify (EV_P)
       /* first reschedule or stop timer */
       if (w->reschedule_cb)
         {
-          ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
+          ev_tstamp at = ((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 > rt_now));
+          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
@@ -1014,9 +1040,9 @@ periodics_reschedule (EV_P)
       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 */
@@ -1031,13 +1057,13 @@ 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;
     }
 }
@@ -1056,12 +1082,12 @@ time_update (EV_P)
 
           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;
             }
@@ -1074,18 +1100,18 @@ time_update (EV_P)
   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))
         {
           periodics_reschedule (EV_A);
 
           /* 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;
     }
 }
 
@@ -1135,8 +1161,8 @@ ev_loop (EV_P_ int flags)
       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)
@@ -1153,7 +1179,7 @@ ev_loop (EV_P_ int flags)
 
           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;
             }
 
@@ -1162,7 +1188,7 @@ ev_loop (EV_P_ int flags)
 
       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 */
@@ -1318,10 +1344,7 @@ ev_timer_again (EV_P_ struct ev_timer *w)
   if (ev_is_active (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, mn_now + w->repeat);
       else
         ev_timer_stop (EV_A_ w);
     }
@@ -1336,12 +1359,12 @@ 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);
@@ -1373,6 +1396,7 @@ ev_periodic_stop (EV_P_ struct ev_periodic *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);
 }
@@ -1561,14 +1585,14 @@ ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, vo
       once->cb  = cb;
       once->arg = arg;
 
-      ev_watcher_init (&once->io, once_cb_io);
+      ev_init (&once->io, once_cb_io);
       if (fd >= 0)
         {
           ev_io_set (&once->io, fd, events);
           ev_io_start (EV_A_ &once->io);
         }
 
-      ev_watcher_init (&once->to, once_cb_to);
+      ev_init (&once->to, once_cb_to);
       if (timeout >= 0.)
         {
           ev_timer_set (&once->to, timeout, 0.);
@@ -1577,3 +1601,7 @@ ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, vo
     }
 }
 
+#ifdef __cplusplus
+}
+#endif
+