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// Copyright 2014-Present Zwopple Limited
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#import "PSWebSocketNetworkThread.h"
@interface PSWebSocketNetworkThread() {
dispatch_group_t _waitGroup;
}
@property (nonatomic, strong) NSRunLoop *runLoop;
@end
@implementation PSWebSocketNetworkThread
#pragma mark - Singleton
+ (instancetype)sharedNetworkThread {
static id sharedNetworkThread = nil;
static dispatch_once_t sharedNetworkThreadOnce = 0;
dispatch_once(&sharedNetworkThreadOnce, ^{
sharedNetworkThread = [[self alloc] init];
});
return sharedNetworkThread;
}
#pragma mark - Properties
- (NSRunLoop *)runLoop {
dispatch_group_wait(_waitGroup, DISPATCH_TIME_FOREVER);
return _runLoop;
}
#pragma mark - Initialization
- (instancetype)init {
if((self = [super init])) {
_waitGroup = dispatch_group_create();
dispatch_group_enter(_waitGroup);
[self start];
}
return self;
}
- (void)main {
@autoreleasepool {
_runLoop = [NSRunLoop currentRunLoop];
dispatch_group_leave(_waitGroup);
NSTimer *timer = [[NSTimer alloc] initWithFireDate:[NSDate distantFuture] interval:0.0 target:self selector:@selector(self) userInfo:nil repeats:NO];
[_runLoop addTimer:timer forMode:NSDefaultRunLoopMode];
NSRunLoop *runLoop = _runLoop;
while([runLoop runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]]) {
// no-op
}
[NSException raise:NSInternalInconsistencyException format:@"PSWebSocketNetworkThread should never exit."];
}
}
@end