rhubarb-lip-sync/lib/webrtc-8d2248ff/webrtc/base/maccocoathreadhelper.mm

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2016-06-21 20:13:05 +00:00
/*
* Copyright 2007 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
// Helper function for using Cocoa with Posix threading.
#import <assert.h>
#import <Foundation/Foundation.h>
#import "webrtc/base/maccocoathreadhelper.h"
namespace rtc {
// Cocoa must be "put into multithreading mode" before Cocoa functionality can
// be used on POSIX threads. The way to do that is to spawn one thread that may
// immediately exit.
void InitCocoaMultiThreading() {
if ([NSThread isMultiThreaded] == NO) {
// The sole purpose of this autorelease pool is to avoid a console
// message on Leopard that tells us we're autoreleasing the thread
// with no autorelease pool in place.
// Doing NSAutoreleasePool* hack = [[NSAutoreleasePool alloc] init];
// causes unused variable error.
NSAutoreleasePool* hack;
hack = [[NSAutoreleasePool alloc] init];
[NSThread detachNewThreadSelector:@selector(class)
toTarget:[NSObject class]
withObject:nil];
[hack drain];
}
assert([NSThread isMultiThreaded]);
}
} // namespace rtc