| /* |
| * Copyright (C) 2009, 2015 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 "LoaderRunLoopCF.h" |
| |
| #if USE(CFURLCONNECTION) |
| |
| #include <CoreFoundation/CoreFoundation.h> |
| #include <limits> |
| #include <mutex> |
| #include <wtf/AutodrainedPool.h> |
| #include <wtf/Condition.h> |
| #include <wtf/Lock.h> |
| #include <wtf/MainThread.h> |
| #include <wtf/Threading.h> |
| |
| namespace WebCore { |
| |
| static CFRunLoopRef loaderRunLoopObject = 0; |
| |
| static StaticLock loaderRunLoopMutex; |
| static StaticCondition loaderRunLoopConditionVariable; |
| |
| static void emptyPerform(void*) |
| { |
| } |
| |
| CFRunLoopRef loaderRunLoop() |
| { |
| ASSERT(isMainThread()); |
| |
| std::unique_lock<StaticLock> lock(loaderRunLoopMutex); |
| |
| if (!loaderRunLoopObject) { |
| Thread::create("WebCore: CFNetwork Loader", [] { |
| { |
| std::lock_guard<StaticLock> lock(loaderRunLoopMutex); |
| |
| loaderRunLoopObject = CFRunLoopGetCurrent(); |
| |
| // Must add a source to the run loop to prevent CFRunLoopRun() from exiting. |
| CFRunLoopSourceContext ctxt = {0, (void*)1 /*must be non-null*/, 0, 0, 0, 0, 0, 0, 0, emptyPerform}; |
| CFRunLoopSourceRef bogusSource = CFRunLoopSourceCreate(0, 0, &ctxt); |
| CFRunLoopAddSource(loaderRunLoopObject, bogusSource, kCFRunLoopDefaultMode); |
| |
| loaderRunLoopConditionVariable.notifyOne(); |
| } |
| |
| SInt32 result; |
| do { |
| AutodrainedPool pool; |
| result = CFRunLoopRunInMode(kCFRunLoopDefaultMode, std::numeric_limits<double>::max(), true); |
| } while (result != kCFRunLoopRunStopped && result != kCFRunLoopRunFinished); |
| }); |
| |
| loaderRunLoopConditionVariable.wait(lock, [] { return loaderRunLoopObject; }); |
| } |
| |
| return loaderRunLoopObject; |
| } |
| |
| } // namespace WebCore |
| |
| #endif // USE(CFURLCONNECTION) |