我如何确保只有在所有线程都已完成目标执行时才关闭我的应用程序-c

Question

我有以下代码

@interface MCMCustomURLSchemeHandler : NSObject
- (void)getUrl:(NSAppleEventDescriptor *)event
withReplyEvent:(NSAppleEventDescriptor *)replyEvent;
@end

@implementation MCMCustomURLSchemeHandler

- (void)getUrl:(NSAppleEventDescriptor *)event
withReplyEvent:(NSAppleEventDescriptor *)replyEvent
{
    // Get the URL
    NSString *urlStr = [[event paramDescriptorForKeyword:keyDirectObject]
                        stringValue];
    NSLog(@" CUSTOM URL %@", urlStr);

    //TODO: Your custom URL handling code here
}

@end

@interface MyObject : NSObject
+(void)aMethod:(id)param;
@end

@implementation MyObject
+(void)aMethod:(id)param{

    @autoreleasepool {
    [NSApp activateIgnoringOtherApps:YES];
    NSAppleScript *script = [[NSAppleScript alloc] initWithSource:scriptToLaunch];
    [script executeAndReturnError:nil];

    NSLog(@"hitting this point");
    }
}
@end

int main(int argc, char *argv[]) {
    @autoreleasepool {

    MCMCustomURLSchemeHandler *mcmCustomURLHandler = [[MCMCustomURLSchemeHandler alloc] init];

    NSAppleEventManager *em = [NSAppleEventManager sharedAppleEventManager];
    [em
     setEventHandler:mcmCustomURLHandler
     andSelector:@selector(getUrl:withReplyEvent:)
     forEventClass:kInternetEventClass
     andEventID:kAEGetURL];

        [NSThread detachNewThreadSelector:@selector(aMethod:) toTarget:[MyObject class] withObject:nil];

        //sleep(10000);
        return 0;
    }
}

在MyObject方法中，我正在启动一个Jar。直到我退出我的Jar，我没有得到回调。

当我的线程正在收听Jar时，如何确保我的应用程序继续处于运行状态。

我需要应用程序处于功能位置（睡眠不会帮助），因为它必须侦听其他一些事件（自定义URL）。