/* * Copyright (C) 2017 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. */ #include "config.h" #include "RuntimeApplicationChecks.h" #include <wtf/NeverDestroyed.h> #include <wtf/Optional.h> #include <wtf/ProcessID.h> #include <wtf/RunLoop.h> namespace WebCore { #if !ASSERT_MSG_DISABLED static bool presentingApplicationPIDOverrideWasQueried; #endif static std::optional<int>& presentingApplicationPIDOverride() { static NeverDestroyed<std::optional<int>> pid; #if !ASSERT_MSG_DISABLED presentingApplicationPIDOverrideWasQueried = true; #endif return pid; } int presentingApplicationPID() { const auto& pid = presentingApplicationPIDOverride(); ASSERT(!pid || RunLoop::isMain()); return pid ? pid.value() : getCurrentProcessID(); } void setPresentingApplicationPID(int pid) { ASSERT(RunLoop::isMain()); ASSERT_WITH_MESSAGE(!presentingApplicationPIDOverrideWasQueried, "presentingApplicationPID() should not be called before setPresentingApplicationPID()"); presentingApplicationPIDOverride() = pid; } } // namespace WebCore