michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:set ts=2 sw=2 sts=2 et cindent: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef MainThreadUtils_h_
michael@0: #define MainThreadUtils_h_
michael@0: 
michael@0: #include "nscore.h"
michael@0: #include "mozilla/threads/nsThreadIDs.h"
michael@0: 
michael@0: class nsIThread;
michael@0: 
michael@0: /**
michael@0:  * Get a reference to the main thread.
michael@0:  *
michael@0:  * @param result
michael@0:  *   The resulting nsIThread object.
michael@0:  */
michael@0: extern NS_COM_GLUE NS_METHOD
michael@0: NS_GetMainThread(nsIThread **result);
michael@0: 
michael@0: #if defined(MOZILLA_INTERNAL_API) && defined(XP_WIN)
michael@0: bool NS_IsMainThread();
michael@0: #elif defined(MOZILLA_INTERNAL_API) && defined(NS_TLS)
michael@0: // This is defined in nsThreadManager.cpp and initialized to `Main` for the
michael@0: // main thread by nsThreadManager::Init.
michael@0: extern NS_TLS mozilla::threads::ID gTLSThreadID;
michael@0: #ifdef MOZ_ASAN
michael@0: // Temporary workaround, see bug 895845
michael@0: MOZ_ASAN_BLACKLIST bool NS_IsMainThread();
michael@0: #else
michael@0: inline
michael@0: bool NS_IsMainThread()
michael@0: {
michael@0:   return gTLSThreadID == mozilla::threads::Main;
michael@0: }
michael@0: #endif
michael@0: #else
michael@0: /**
michael@0:  * Test to see if the current thread is the main thread.
michael@0:  *
michael@0:  * @returns true if the current thread is the main thread, and false
michael@0:  * otherwise.
michael@0:  */
michael@0: extern NS_COM_GLUE bool NS_IsMainThread();
michael@0: #endif
michael@0: 
michael@0: #endif // MainThreadUtils_h_