svn commit: trunk/uClibc/libc/sysdeps/linux/common
jocke at uclibc.org
jocke at uclibc.org
Tue Oct 23 11:47:01 UTC 2007
Author: jocke
Date: 2007-10-23 04:47:01 -0700 (Tue, 23 Oct 2007)
New Revision: 20318
Log:
Poll with zero timeout
Jean-Christian de Rivaz writes:
The attached patch solve an issue I faced while using the libdbus-glib
waiting for a D-Bus message or the end of a glib timer at the same time.
This specific case of use generate a poll call with a zero timeout. On
platformes with the glibc a zero timeout poll return immetiately even if
there is no file descriptor event. But on platformes with uClibc a zero
timeout poll block until a file descriptor event occurs.
Modified:
trunk/uClibc/libc/sysdeps/linux/common/poll.c
Changeset:
Modified: trunk/uClibc/libc/sysdeps/linux/common/poll.c
===================================================================
--- trunk/uClibc/libc/sysdeps/linux/common/poll.c 2007-10-23 09:49:56 UTC (rev 20317)
+++ trunk/uClibc/libc/sysdeps/linux/common/poll.c 2007-10-23 11:47:01 UTC (rev 20318)
@@ -38,6 +38,10 @@
tval.tv_sec = timeout / 1000;
tval.tv_nsec = (timeout % 1000) * 1000000;
ts = &tval;
+ } else if (timeout == 0) {
+ tval.tv_sec = 0;
+ tval.tv_nsec = 0;
+ ts = &tval;
}
return ppoll(fds, nfds, ts, NULL);
}
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