59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_VM_RUNTIME_SEMAPHORE_HPP
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#define SHARE_VM_RUNTIME_SEMAPHORE_HPP
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#include "memory/allocation.hpp"
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#if defined(TARGET_OS_FAMILY_linux) || defined(TARGET_OS_FAMILY_solaris) || defined(TARGET_OS_FAMILY_aix)
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# include "semaphore_posix.hpp"
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#elif defined(TARGET_OS_FAMILY_bsd)
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# include "semaphore_bsd.hpp"
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#elif defined(TARGET_OS_FAMILY_windows)
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# include "semaphore_windows.hpp"
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#else
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# error "No semaphore implementation provided for this OS"
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#endif
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// Implements the limited, platform independent Semaphore API.
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class Semaphore : public CHeapObj<mtInternal> {
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SemaphoreImpl _impl;
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// Prevent copying and assignment of Semaphore instances.
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Semaphore(const Semaphore&);
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Semaphore& operator=(const Semaphore&);
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public:
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Semaphore(uint value = 0) : _impl(value) {}
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~Semaphore() {}
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void signal(uint count = 1) { _impl.signal(count); }
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void wait() { _impl.wait(); }
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};
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#endif // SHARE_VM_RUNTIME_SEMAPHORE_HPP
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