*** empty log message ***

[software/libev.git] / event.c

diff --git a/event.c b/event.c
index 75cd06b87a6103d791a5d688b617b3d8462185fe..714f3456daab9e643c21ade84958ab51c95e9404 100644 (file)
--- a/event.c
+++ b/event.c
@@ -4,36 +4,52 @@
  * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
  * All rights reserved.
  *
  * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
  * All rights reserved.
  *

- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, are permitted provided that the following conditions are met:
+ * 
+ *   1.  Redistributions of source code must retain the above copyright notice,
+ *       this list of conditions and the following disclaimer.
+ * 
+ *   2.  Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
+ * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
+ * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
+ * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.

  *
  *

- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *
- *     * Redistributions in binary form must reproduce the above
- *       copyright notice, this list of conditions and the following
- *       disclaimer in the documentation and/or other materials provided
- *       with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License ("GPL") version 2 or any later version,
+ * in which case the provisions of the GPL are applicable instead of
+ * the above. If you wish to allow the use of your version of this file
+ * only under the terms of the GPL and not to allow others to use your
+ * version of this file under the BSD license, indicate your decision
+ * by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL. If you do not delete the
+ * provisions above, a recipient may use your version of this file under
+ * either the BSD or the GPL.

  */
 
 #include <stddef.h>
 #include <stdlib.h>
  */
 
 #include <stddef.h>
 #include <stdlib.h>

-#include <sys/time.h>
+#include <assert.h>

 
 

-#include "event.h"
+#ifndef WIN32
+# include <sys/time.h>
+#endif
+
+#ifdef EV_EVENT_H
+# include EV_EVENT_H
+#else
+# include "event.h"
+#endif

 
 #if EV_MULTIPLICITY
 # define dLOOPev struct ev_loop *loop = (struct ev_loop *)ev->ev_base
 
 #if EV_MULTIPLICITY
 # define dLOOPev struct ev_loop *loop = (struct ev_loop *)ev->ev_base


@@ -49,7 +65,7 @@ struct event_base
   int dummy;
 };
 
   int dummy;
 };
 

-static struct event_base x_base, *x_cur;
+static struct event_base *x_cur;

 
 static void
 tv_set (struct timeval *tv, ev_tstamp at)
 
 static void
 tv_set (struct timeval *tv, ev_tstamp at)


@@ -82,9 +98,14 @@ const char *event_get_method (void)
 void *event_init (void)
 {
 #if EV_MULTIPLICITY
 void *event_init (void)
 {
 #if EV_MULTIPLICITY

-  x_cur = (struct event_base *)ev_loop_new (EVMETHOD_AUTO);
+  if (x_cur)
+    x_cur = (struct event_base *)ev_loop_new (EVFLAG_AUTO);
+  else
+    x_cur = (struct event_base *)ev_default_loop (EVFLAG_AUTO);

 #else
 #else

-  x_cur = &x_base;
+  assert (("multiple event bases not supported when not compiled with EV_MULTIPLICITY", !x_cur));
+
+  x_cur = (struct event_base *)(long)ev_default_loop (EVFLAG_AUTO);

 #endif
 
   return x_cur;
 #endif
 
   return x_cur;


@@ -95,7 +116,8 @@ void event_base_free (struct event_base *base)
   dLOOPbase;
 
 #if EV_MULTIPLICITY
   dLOOPbase;
 
 #if EV_MULTIPLICITY

-  ev_loop_delete (loop);
+  if (ev_default_loop (EVFLAG_AUTO) != loop)
+    ev_loop_destroy (loop);

 #endif
 }
 
 #endif
 }
 


@@ -127,13 +149,18 @@ x_cb (struct event *ev, int revents)
   revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL;
 
   ev->ev_res = revents;
   revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL;
 
   ev->ev_res = revents;

-  ev->ev_callback (ev->ev_fd, revents, ev->ev_arg);
+  ev->ev_callback (ev->ev_fd, (short)revents, ev->ev_arg);

 }
 
 static void
 x_cb_sig (EV_P_ struct ev_signal *w, int revents)
 {
 }
 
 static void
 x_cb_sig (EV_P_ struct ev_signal *w, int revents)
 {

-  x_cb ((struct event *)(((char *)w) - offsetof (struct event, iosig.sig)), revents);
+  struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.sig));
+
+  if (revents & EV_ERROR)
+    event_del (ev);
+
+  x_cb (ev, revents);

 }
 
 static void
 }
 
 static void


@@ -141,8 +168,8 @@ x_cb_io (EV_P_ struct ev_io *w, int revents)
 {
   struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.io));
 
 {
   struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.io));
 

-  if (!(ev->ev_events & EV_PERSIST) && ev_is_active (w))
-    ev_io_stop (EV_A_ w);
+  if ((revents & EV_ERROR) || !(ev->ev_events & EV_PERSIST))
+    event_del (ev);

 
   x_cb (ev, revents);
 }
 
   x_cb (ev, revents);
 }


@@ -150,22 +177,21 @@ x_cb_io (EV_P_ struct ev_io *w, int revents)
 static void
 x_cb_to (EV_P_ struct ev_timer *w, int revents)
 {
 static void
 x_cb_to (EV_P_ struct ev_timer *w, int revents)
 {

-  x_cb ((struct event *)(((char *)w) - offsetof (struct event, to)), revents);
+  struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, to));
+
+  event_del (ev);
+
+  x_cb (ev, revents);

 }
 
 void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg)
 {
 }
 
 void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg)
 {

-  if (!ev->initialised)
-    {
-      ev->initialised = 1;
-
-      if (events & EV_SIGNAL)
-        ev_watcher_init (&ev->iosig.sig, x_cb_sig);
-      else
-        ev_watcher_init (&ev->iosig.io, x_cb_io);
+  if (events & EV_SIGNAL)
+    ev_init (&ev->iosig.sig, x_cb_sig);
+  else
+    ev_init (&ev->iosig.io, x_cb_io);

 
 

-      ev_watcher_init (&ev->to, x_cb_to);
-    }
+  ev_init (&ev->to, x_cb_to);

 
   ev->ev_base     = x_cur; /* not threadsafe, but its like libevent works */
   ev->ev_fd       = fd;
 
   ev->ev_base     = x_cur; /* not threadsafe, but its like libevent works */
   ev->ev_fd       = fd;


@@ -174,6 +200,7 @@ void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, v
   ev->ev_callback = cb;
   ev->ev_arg      = arg;
   ev->ev_res      = 0;
   ev->ev_callback = cb;
   ev->ev_arg      = arg;
   ev->ev_res      = 0;

+  ev->ev_flags    = EVLIST_INIT;

 }
 
 int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)
 }
 
 int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)


@@ -185,26 +212,41 @@ int event_add (struct event *ev, struct timeval *tv)
 {
   dLOOPev;
 
 {
   dLOOPev;
 

-  /* disable all watchers */
-  event_del (ev);
-

   if (ev->ev_events & EV_SIGNAL)
     {
   if (ev->ev_events & EV_SIGNAL)
     {

-      ev_signal_set (&ev->iosig.sig, ev->ev_fd);
-      ev_signal_start (EV_A_ &ev->iosig.sig);
+      if (!ev_is_active (&ev->iosig.sig))
+        {
+          ev_signal_set (&ev->iosig.sig, ev->ev_fd);
+          ev_signal_start (EV_A_ &ev->iosig.sig);
+
+          ev->ev_flags |= EVLIST_SIGNAL;
+        }

     }
   else if (ev->ev_events & (EV_READ | EV_WRITE))
     {
     }
   else if (ev->ev_events & (EV_READ | EV_WRITE))
     {

-      ev_io_set (&ev->iosig.io, ev->ev_fd, ev->ev_events & (EV_READ | EV_WRITE));
-      ev_io_start (EV_A_ &ev->iosig.io);
+      if (!ev_is_active (&ev->iosig.io))
+        {
+          ev_io_set (&ev->iosig.io, ev->ev_fd, ev->ev_events & (EV_READ | EV_WRITE));
+          ev_io_start (EV_A_ &ev->iosig.io);
+
+          ev->ev_flags |= EVLIST_INSERTED;
+        }

     }
 
   if (tv)
     {
     }
 
   if (tv)
     {

-      ev_timer_set (&ev->to, tv_get (tv), 0.);
-      ev_timer_start (EV_A_ &ev->to);
+      ev->to.repeat = tv_get (tv);
+      ev_timer_again (EV_A_ &ev->to);
+      ev->ev_flags |= EVLIST_TIMEOUT;
+    }
+  else
+    {
+      ev_timer_stop (EV_A_ &ev->to);
+      ev->ev_flags &= ~EVLIST_TIMEOUT;

     }
 
     }
 

+  ev->ev_flags |= EVLIST_ACTIVE;
+

   return 0;
 }
 
   return 0;
 }
 


@@ -213,44 +255,52 @@ int event_del (struct event *ev)
   dLOOPev;
 
   if (ev->ev_events & EV_SIGNAL)
   dLOOPev;
 
   if (ev->ev_events & EV_SIGNAL)

-    {
-      /* sig */
-      if (ev_is_active (&ev->iosig.sig))
-        ev_signal_stop (EV_A_ &ev->iosig.sig);
-    }
-  else
-    {
-      /* io */
-      if (ev_is_active (&ev->iosig.io))
-        ev_io_stop (EV_A_ &ev->iosig.io);
-    }
+    ev_signal_stop (EV_A_ &ev->iosig.sig);
+  else if (ev->ev_events & (EV_READ | EV_WRITE))
+    ev_io_stop (EV_A_ &ev->iosig.io);

 
   if (ev_is_active (&ev->to))
     ev_timer_stop (EV_A_ &ev->to);
 
 
   if (ev_is_active (&ev->to))
     ev_timer_stop (EV_A_ &ev->to);
 

+  ev->ev_flags = EVLIST_INIT;
+

   return 0;
 }
 
   return 0;
 }
 

-int event_pending (struct event *ev, short events, struct timeval *tv)
+void event_active (struct event *ev, int res, short ncalls)

 {
   dLOOPev;
 
 {
   dLOOPev;
 

+  if (res & EV_TIMEOUT)
+    ev_feed_event (EV_A_ &ev->to, res & EV_TIMEOUT);
+
+  if (res & EV_SIGNAL)
+    ev_feed_event (EV_A_ &ev->iosig.sig, res & EV_SIGNAL);
+
+  if (res & (EV_READ | EV_WRITE))
+    ev_feed_event (EV_A_ &ev->iosig.io, res & (EV_READ | EV_WRITE));
+}
+
+int event_pending (struct event *ev, short events, struct timeval *tv)
+{

   short revents = 0;
   short revents = 0;

+  dLOOPev;
+

 
   if (ev->ev_events & EV_SIGNAL)
     {
       /* sig */
 
   if (ev->ev_events & EV_SIGNAL)
     {
       /* sig */

-      if (ev->iosig.sig.pending)
+      if (ev_is_active (&ev->iosig.sig) || ev_is_pending (&ev->iosig.sig))

         revents |= EV_SIGNAL;
     }
         revents |= EV_SIGNAL;
     }

-  else
+  else if (ev->ev_events & (EV_READ | EV_WRITE))

     {
       /* io */
     {
       /* io */

-      if (ev->iosig.io.pending)
+      if (ev_is_active (&ev->iosig.io) || ev_is_pending (&ev->iosig.io))

         revents |= ev->ev_events & (EV_READ | EV_WRITE);
     }
 
         revents |= ev->ev_events & (EV_READ | EV_WRITE);
     }
 

-  if (ev->to.pending)
+  if (ev->ev_events & EV_TIMEOUT || ev_is_active (&ev->to) || ev_is_pending (&ev->to))

     {
       revents |= EV_TIMEOUT;
 
     {
       revents |= EV_TIMEOUT;
 


@@ -299,13 +349,13 @@ x_loopexit_cb (int revents, void *base)
 {
   dLOOPbase;
 
 {
   dLOOPbase;
 

-  ev_unloop (EV_A_ EVUNLOOP_ONCE);
+  ev_unloop (EV_A_ EVUNLOOP_ONE);

 }
 
 int event_base_loopexit (struct event_base *base, struct timeval *tv)
 {
 }
 
 int event_base_loopexit (struct event_base *base, struct timeval *tv)
 {

-  dLOOPbase;

   ev_tstamp after = tv_get (tv);
   ev_tstamp after = tv_get (tv);

+  dLOOPbase;

 
   ev_once (EV_A_ -1, 0, after >= 0. ? after : 0., x_loopexit_cb, (void *)base);
 
 
   ev_once (EV_A_ -1, 0, after >= 0. ? after : 0., x_loopexit_cb, (void *)base);
 


@@ -322,16 +372,16 @@ struct x_once
 static void
 x_once_cb (int revents, void *arg)
 {
 static void
 x_once_cb (int revents, void *arg)
 {

-  struct x_once *once = arg;
+  struct x_once *once = (struct x_once *)arg;

 
 

-  once->cb (once->fd, revents, once->arg);
+  once->cb (once->fd, (short)revents, once->arg);

   free (once);
 }
 
 int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)
 {
   free (once);
 }
 
 int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv)
 {

+  struct x_once *once = (struct x_once *)malloc (sizeof (struct x_once));

   dLOOPbase;
   dLOOPbase;

-  struct x_once *once = malloc (sizeof (struct x_once));

 
   if (!once)
     return -1;
 
   if (!once)
     return -1;


@@ -347,7 +397,7 @@ int event_base_once (struct event_base *base, int fd, short events, void (*cb)(i
 
 int event_base_priority_init (struct event_base *base, int npri)
 {
 
 int event_base_priority_init (struct event_base *base, int npri)
 {

-  dLOOPbase;
+  /*dLOOPbase;*/

 
   return 0;
 }
 
   return 0;
 }