IOS 多线程-pthread

#import <pthread.h>

@interface HMViewController ()
- (IBAction)btnClick;

@end

@implementation HMViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


void *run(void *data) {
    
    NSThread *current = [NSThread currentThread];
    
    for (int i = 0; i<20000; i++) {
        NSLog(@"run---%@", current);
    }
    
    return NULL;
}

- (IBAction)btnClick {
    // 1.获得当前的线程
    NSThread *current = [NSThread currentThread];
    NSLog(@"btnClick---%@", current);
    
    // 2.执行一些耗时操作 : 创建一条子线程
    pthread_t threadId;
    pthread_create(&threadId, NULL, run, NULL);
}
@end