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authorUlrich Drepper <drepper@redhat.com>2007-10-05 20:32:30 +0000
committerUlrich Drepper <drepper@redhat.com>2007-10-05 20:32:30 +0000
commit6789aaaa979339534384a212e21e7731eaddf985 (patch)
treed36b34b772aae760bd521617a4514bab1f3e9db2 /sysdeps/unix/sysv/linux/sys
parent8e351378b76880f861bdcda8fc11d5769e310a00 (diff)
downloadglibc-6789aaaa979339534384a212e21e7731eaddf985.tar.gz
glibc-6789aaaa979339534384a212e21e7731eaddf985.tar.xz
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2007-10-04 Jakub Jelinek <jakub@redhat.com>
2007-10-03  Jakub Jelinek  <jakub@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/sys')
-rw-r--r--sysdeps/unix/sysv/linux/sys/eventfd.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sys/eventfd.h b/sysdeps/unix/sysv/linux/sys/eventfd.h
new file mode 100644
index 0000000000..1ebaea7b30
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/eventfd.h
@@ -0,0 +1,43 @@
+/* Copyright (C) 2007 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_EVENTFD_H
+#define	_SYS_EVENTFD_H	1
+
+#include <stdint.h>
+
+
+/* Type for event counter.  */
+typedef uint64_t eventfd_t;
+
+
+__BEGIN_DECLS
+
+/* Return file descriptor for generic event channel.  Set initial
+   value to COUNT.  */
+extern int eventfd (int __count, int __flags) __THROW;
+
+/* Read event counter and possibly wait for events.  */
+extern int eventfd_read (int __fd, eventfd_t *__value);
+
+/* Increment event counter.  */
+extern int eventfd_write (int __fd, eventfd_t value);
+
+__END_DECLS
+
+#endif /* sys/eventfd.h */