Mercurial > hg > graal-compiler
view agent/src/os/win32/Monitor.hpp @ 1639:9ee05c8ab82f
Merge
author | ysr |
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date | Mon, 12 Jul 2010 12:53:52 -0700 |
parents | c18cbe5936b8 |
children |
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/* * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef _MONITOR_ #define _MONITOR_ #include <windows.h> class Monitor { public: Monitor(); ~Monitor(); void lock(); void unlock(); // Default time is forever (i.e, zero). Returns true if it times-out, otherwise // false. bool wait(long timeout = 0); bool notify(); bool notifyAll(); private: HANDLE owner(); void setOwner(HANDLE owner); bool ownedBySelf(); HANDLE _owner; long _lock_count; HANDLE _lock_event; // Auto-reset event for blocking in lock() HANDLE _wait_event; // Manual-reset event for notifications long _counter; // Current number of notifications long _waiters; // Number of threads waiting for notification long _tickets; // Number of waiters to be notified }; #endif // #defined _MONITOR_