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authorYaniv Kamay <ykamay@redhat.com>2009-09-19 21:25:46 +0300
committerYaniv Kamay <ykamay@redhat.com>2009-10-14 15:06:41 +0200
commitc1b79eb035fa158fb2ac3bc8e559809611070016 (patch)
tree3348dd749a700dedf87c9b16fe8be77c62928df8 /client/x11/atomic_count.h
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Diffstat (limited to 'client/x11/atomic_count.h')
-rw-r--r--client/x11/atomic_count.h42
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diff --git a/client/x11/atomic_count.h b/client/x11/atomic_count.h
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+/*
+ Copyright (C) 2009 Red Hat, Inc.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 of
+ the License, or (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _H_ATOMIC_COUNT
+#define _H_ATOMIC_COUNT
+
+class AtomicCount {
+public:
+ AtomicCount(uint32_t count = 0) : _count (count) {}
+
+ uint32_t operator ++ ()
+ {
+ return __sync_add_and_fetch(&_count, 1);
+ }
+
+ uint32_t operator -- ()
+ {
+ return __sync_sub_and_fetch(&_count, 1);
+ }
+
+ operator uint32_t () { return _count;}
+
+private:
+ uint32_t _count;
+};
+
+#endif
+