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authorNeal H. Walfield <neal@gnu.org>2008-12-17 15:22:19 +0100
committerNeal H. Walfield <neal@gnu.org>2008-12-17 15:22:19 +0100
commita7416b7c63f4954ff78eecf31e5146cb86cda6a6 (patch)
treea027dcf2b3549492ab77ae0d528bac6eba09ef18
parenta29cab0986973a39e3437e8cb287de408bd67263 (diff)
Add generic spin-lock.h file.
2008-12-17 Neal H. Walfield <neal@gnu.org> * sysdeps/generic/bits/spin-lock.h: New file.
-rw-r--r--libpthread/ChangeLog4
-rw-r--r--libpthread/sysdeps/generic/bits/spin-lock.h39
2 files changed, 43 insertions, 0 deletions
diff --git a/libpthread/ChangeLog b/libpthread/ChangeLog
index ac4abc6..ed6a689 100644
--- a/libpthread/ChangeLog
+++ b/libpthread/ChangeLog
@@ -1,5 +1,9 @@
2008-12-17 Neal H. Walfield <neal@gnu.org>
+ * sysdeps/generic/bits/spin-lock.h: New file.
+
+2008-12-17 Neal H. Walfield <neal@gnu.org>
+
* sysdeps/generic/bits/memory.h: New file.
2008-12-17 Neal H. Walfield <neal@gnu.org>
diff --git a/libpthread/sysdeps/generic/bits/spin-lock.h b/libpthread/sysdeps/generic/bits/spin-lock.h
new file mode 100644
index 0000000..c2ba332
--- /dev/null
+++ b/libpthread/sysdeps/generic/bits/spin-lock.h
@@ -0,0 +1,39 @@
+/* Machine-specific definitions for spin locks. Generic version.
+ Copyright (C) 2000, 2005, 2008 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/*
+ * Never include this file directly; use <pthread.h> or <cthreads.h> instead.
+ */
+
+#ifndef _BITS_SPIN_LOCK_H
+#define _BITS_SPIN_LOCK_H 1
+
+#include <features.h>
+
+__BEGIN_DECLS
+
+/* The type of a spin lock object. */
+typedef __volatile int __pthread_spinlock_t;
+
+/* Initializer for a spin lock object. */
+# define __SPIN_LOCK_INITIALIZER ((__pthread_spinlock_t) 0)
+
+__END_DECLS
+
+#endif /* bits/spin-lock.h */