/* * Copyright (C) 2013 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef ImportanceAssertion_h #define ImportanceAssertion_h #if PLATFORM(MAC) #if USE(APPLE_INTERNAL_SDK) #include <libproc_internal.h> #endif extern "C" int proc_denap_assertion_begin_with_msg(mach_msg_header_t*, uint64_t *); extern "C" int proc_denap_assertion_complete(uint64_t); namespace IPC { class ImportanceAssertion { WTF_MAKE_NONCOPYABLE(ImportanceAssertion); public: explicit ImportanceAssertion(mach_msg_header_t* header) : m_assertion(0) { proc_denap_assertion_begin_with_msg(header, &m_assertion); } ~ImportanceAssertion() { proc_denap_assertion_complete(m_assertion); } private: uint64_t m_assertion; }; } #endif // PLATFORM(MAC) #endif // ImportanceAssertion_h