do not support multiple event bases. period.

[software/libev.git] / ev_epoll.c

diff --git a/ev_epoll.c b/ev_epoll.c
index c6d3af53274e148546af1539f12725de02b14ef4..a7918aff9a74fe7b091f0b18ccb2d4f14032cb51 100644 (file)
--- a/ev_epoll.c
+++ b/ev_epoll.c
@@ -1,4 +1,6 @@
 /*
+ * libev epoll fd activity backend
+ *
  * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
  * All rights reserved.
  *
@@ -37,7 +39,7 @@ epoll_modify (int fd, int oev, int nev)
   int mode = nev ? oev ? EPOLL_CTL_MOD : EPOLL_CTL_ADD : EPOLL_CTL_DEL;
 
   struct epoll_event ev;
-  ev.data.fd = fd;
+  ev.data.u64 = fd; /* use u64 to fully initialise the struct, for nicer strace etc. */
   ev.events =
       (nev & EV_READ ? EPOLLIN : 0)
       | (nev & EV_WRITE ? EPOLLOUT : 0);
@@ -45,7 +47,8 @@ epoll_modify (int fd, int oev, int nev)
   epoll_ctl (epoll_fd, mode, fd, &ev);
 }
 
-void epoll_postfork_child (void)
+static void
+epoll_postfork_child (void)
 {
   int fd;
 
@@ -54,14 +57,15 @@ void epoll_postfork_child (void)
 
   /* re-register interest in fds */
   for (fd = 0; fd < anfdmax; ++fd)
-    if (anfds [fd].wev)
-      epoll_modify (fd, EV_NONE, anfds [fd].wev);
+    if (anfds [fd].events)//D
+      epoll_modify (fd, EV_NONE, anfds [fd].events);
 }
 
 static struct epoll_event *events;
 static int eventmax;
 
-static void epoll_poll (ev_tstamp timeout)
+static void
+epoll_poll (ev_tstamp timeout)
 {
   int eventcnt = epoll_wait (epoll_fd, events, eventmax, ceil (timeout * 1000.));
   int i;
@@ -71,21 +75,22 @@ static void epoll_poll (ev_tstamp timeout)
 
   for (i = 0; i < eventcnt; ++i)
     fd_event (
-      events [i].data.fd,
+      events [i].data.u64,
       (events [i].events & (EPOLLOUT | EPOLLERR | EPOLLHUP) ? EV_WRITE : 0)
       | (events [i].events & (EPOLLIN | EPOLLERR | EPOLLHUP) ? EV_READ : 0)
     );
 
   /* if the receive array was full, increase its size */
-  if (eventcnt == eventmax)
+  if (expect_false (eventcnt == eventmax))
     {
       free (events);
-      eventmax += eventmax >> 1;
+      eventmax = array_roundsize (events, eventmax << 1);
       events = malloc (sizeof (struct epoll_event) * eventmax);
     }
 }
 
-void epoll_init (int flags)
+static void
+epoll_init (int flags)
 {
   epoll_fd = epoll_create (256);
 
@@ -102,3 +107,4 @@ void epoll_init (int flags)
   eventmax = 64; /* intiial number of events receivable per poll */
   events = malloc (sizeof (struct epoll_event) * eventmax);
 }
+