Add exceptions support to C++ interface.

[software/libev.git] / ev_port.c

diff --git a/ev_port.c b/ev_port.c
index d051671aa27f0487d970db7e4c7726a6cfe1859e..a84fb7b04770fc0394a5c082a222283585b3ff72 100644 (file)
--- a/ev_port.c
+++ b/ev_port.c
@@ -1,26 +1,40 @@
 /*
 /*

- * Copyright 2007      Marc Alexander Lehmann <libev@schmorp.de>
+ * libev solaris event port backend

  *
  *

- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
+ * All rights reserved.

  *
  *

- * 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.
+ * 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.

  *
  *

- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <sys/types.h>
  */
 
 #include <sys/types.h>


@@ -30,22 +44,14 @@
 #include <string.h>
 #include <errno.h>
 
 #include <string.h>
 #include <errno.h>
 

-static void
-port_modify (EV_P_ int fd, int oev, int nev)
+void inline_speed
+port_associate_and_check (EV_P_ int fd, int ev)

 {
 {

-  /* we need to reassociate no matter what, as closes are
-   * once more silently being discarded.
-   */
-  if (!nev)
-    {
-      if (oev)
-        port_dissociate (port_fd, PORT_SOURCE_FD, fd);
-    }
-  else if (0 >
+  if (0 >

       port_associate (
       port_associate (

-         port_fd, PORT_SOURCE_FD, fd,
-         (nev & EV_READ ? POLLIN : 0)
-         | (nev & EV_WRITE ? POLLOUT : 0),
+         backend_fd, PORT_SOURCE_FD, fd,
+         (ev & EV_READ ? POLLIN : 0)
+         | (ev & EV_WRITE ? POLLOUT : 0),

          0
       )
   )
          0
       )
   )


@@ -54,7 +60,22 @@ port_modify (EV_P_ int fd, int oev, int nev)
         fd_kill (EV_A_ fd);
       else
         syserr ("(libev) port_associate");
         fd_kill (EV_A_ fd);
       else
         syserr ("(libev) port_associate");

-    } 
+    }
+}
+
+static void
+port_modify (EV_P_ int fd, int oev, int nev)
+{
+  /* we need to reassociate no matter what, as closes are
+   * once more silently being discarded.
+   */
+  if (!nev)
+    {
+      if (oev)
+        port_dissociate (backend_fd, PORT_SOURCE_FD, fd);
+    }
+  else
+    port_associate_and_check (EV_A_ fd, nev);

 }
 
 static void
 }
 
 static void


@@ -66,7 +87,7 @@ port_poll (EV_P_ ev_tstamp timeout)
 
   ts.tv_sec  = (time_t)timeout;
   ts.tv_nsec = (long)(timeout - (ev_tstamp)ts.tv_sec) * 1e9;
 
   ts.tv_sec  = (time_t)timeout;
   ts.tv_nsec = (long)(timeout - (ev_tstamp)ts.tv_sec) * 1e9;

-  res = port_getn (port_fd, port_events, port_eventmax, &nget, &ts);
+  res = port_getn (backend_fd, port_events, port_eventmax, &nget, &ts);

 
   if (res < 0)
     { 
 
   if (res < 0)
     { 


@@ -89,31 +110,30 @@ port_poll (EV_P_ ev_tstamp timeout)
             | (port_events [i].portev_events & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0)
           );
 
             | (port_events [i].portev_events & (POLLIN | POLLERR | POLLHUP) ? EV_READ : 0)
           );
 

-          anfds [fd].events = 0; /* event received == disassociated */
-          fd_change (EV_A_ fd); /* need to reify later */
+          port_associate_and_check (EV_A_ fd, anfds [fd].events);

         }
     }
 
   if (expect_false (nget == port_eventmax))
     {
       ev_free (port_events);
         }
     }
 
   if (expect_false (nget == port_eventmax))
     {
       ev_free (port_events);

-      port_eventmax = array_roundsize (port_event_t, port_eventmax << 1);
+      port_eventmax = array_nextsize (sizeof (port_event_t), port_eventmax, port_eventmax + 1);

       port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
     }
 }
 
       port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
     }
 }
 

-static int
+int inline_size

 port_init (EV_P_ int flags)
 {
   /* Initalize the kernel queue */
 port_init (EV_P_ int flags)
 {
   /* Initalize the kernel queue */

-  if ((port_fd = port_create ()) < 0)
+  if ((backend_fd = port_create ()) < 0)

     return 0;
 
     return 0;
 

-  fcntl (port_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */
+  fcntl (backend_fd, F_SETFD, FD_CLOEXEC); /* not sure if necessary, hopefully doesn't hurt */

 
 

-  method_fudge  = 1e-3; /* needed to compensate for port_getn returning early */
-  method_modify = port_modify;
-  method_poll   = port_poll;
+  backend_fudge  = 1e-3; /* needed to compensate for port_getn returning early */
+  backend_modify = port_modify;
+  backend_poll   = port_poll;

 
   port_eventmax = 64; /* intiial number of events receivable per poll */
   port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);
 
   port_eventmax = 64; /* intiial number of events receivable per poll */
   port_events = (port_event_t *)ev_malloc (sizeof (port_event_t) * port_eventmax);


@@ -121,23 +141,21 @@ port_init (EV_P_ int flags)
   return EVBACKEND_PORT;
 }
 
   return EVBACKEND_PORT;
 }
 

-static void
+void inline_size

 port_destroy (EV_P)
 {
 port_destroy (EV_P)
 {

-  close (port_fd);
-

   ev_free (port_events);
 }
 
   ev_free (port_events);
 }
 

-static void
+void inline_size

 port_fork (EV_P)
 {
 port_fork (EV_P)
 {

-  close (port_fd);
+  close (backend_fd);

 
 

-  while ((port_fd = port_create ()) < 0)
+  while ((backend_fd = port_create ()) < 0)

     syserr ("(libev) port");
 
     syserr ("(libev) port");
 

-  fcntl (port_fd, F_SETFD, FD_CLOEXEC);
+  fcntl (backend_fd, F_SETFD, FD_CLOEXEC);

 
   /* re-register interest in fds */
   fd_rearm_all (EV_A);
 
   /* re-register interest in fds */
   fd_rearm_all (EV_A);