| /* |
| * Copyright (C) 2020 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. |
| */ |
| |
| #import "config.h" |
| |
| #if USE(WEB_THREAD) |
| |
| #import "PlatformUtilities.h" |
| #import <Foundation/Foundation.h> |
| #import <WebCore/WebCoreThread.h> |
| #import <wtf/RetainPtr.h> |
| |
| namespace TestWebKitAPI { |
| |
| TEST(WebKitLegacy, NestedRunLoopUnderRunLoopObserverDoubleUnlock) |
| { |
| WebThreadEnable(); |
| |
| WebThreadLock(); |
| |
| __block BOOL spunInnerRunLoop = NO; |
| auto observer = adoptCF(CFRunLoopObserverCreateWithHandler(NULL, kCFRunLoopBeforeWaiting, NO, 2, ^(CFRunLoopObserverRef observer, CFRunLoopActivity activity) { |
| Util::spinRunLoop(1); |
| spunInnerRunLoop = YES; |
| })); |
| |
| CFRunLoopAddObserver(CFRunLoopGetMain(), observer.get(), kCFRunLoopCommonModes); |
| |
| // We must use a time-based instead of count-or-condition-based spin, |
| // so that we hit the above "before waiting" observer. |
| CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, true); |
| |
| EXPECT_TRUE(spunInnerRunLoop); |
| |
| // Spinning the runloop should have resulted in dropping the lock, |
| // and *not underflowing* the lock count (which is also reported as "locked"). |
| EXPECT_FALSE(WebThreadIsLocked()); |
| } |
| |
| } |
| |
| #endif |