1*d9f75844SAndroid Build Coastguard Worker/* 2*d9f75844SAndroid Build Coastguard Worker * Copyright 2018 The WebRTC Project Authors. All rights reserved. 3*d9f75844SAndroid Build Coastguard Worker * 4*d9f75844SAndroid Build Coastguard Worker * Use of this source code is governed by a BSD-style license 5*d9f75844SAndroid Build Coastguard Worker * that can be found in the LICENSE file in the root of the source 6*d9f75844SAndroid Build Coastguard Worker * tree. An additional intellectual property rights grant can be found 7*d9f75844SAndroid Build Coastguard Worker * in the file PATENTS. All contributing project authors may 8*d9f75844SAndroid Build Coastguard Worker * be found in the AUTHORS file in the root of the source tree. 9*d9f75844SAndroid Build Coastguard Worker */ 10*d9f75844SAndroid Build Coastguard Worker#include "rtc_base/system/cocoa_threading.h" 11*d9f75844SAndroid Build Coastguard Worker 12*d9f75844SAndroid Build Coastguard Worker#import <Foundation/Foundation.h> 13*d9f75844SAndroid Build Coastguard Worker 14*d9f75844SAndroid Build Coastguard Worker#include "rtc_base/checks.h" 15*d9f75844SAndroid Build Coastguard Worker 16*d9f75844SAndroid Build Coastguard Workervoid InitCocoaMultiThreading() { 17*d9f75844SAndroid Build Coastguard Worker static BOOL is_cocoa_multithreaded = [NSThread isMultiThreaded]; 18*d9f75844SAndroid Build Coastguard Worker if (!is_cocoa_multithreaded) { 19*d9f75844SAndroid Build Coastguard Worker // +[NSObject class] is idempotent. 20*d9f75844SAndroid Build Coastguard Worker [NSThread detachNewThreadSelector:@selector(class) toTarget:[NSObject class] withObject:nil]; 21*d9f75844SAndroid Build Coastguard Worker is_cocoa_multithreaded = YES; 22*d9f75844SAndroid Build Coastguard Worker RTC_DCHECK([NSThread isMultiThreaded]); 23*d9f75844SAndroid Build Coastguard Worker } 24*d9f75844SAndroid Build Coastguard Worker} 25