ReactiveCocoa 异步压缩等处理

代码

- (void) uploadScene:(NSString*)path{    RACSignal *sg;    WS(ws);    sg = [[RACSignal createSignal:^RACDisposable *(id<RACSubscriber> subscriber) {        dispatch_async(dispatch_get_global_queue(0, 0),^(void){            [ws zipPath:path];            [subscriber sendNext:@"aa"];            [subscriber sendCompleted];        });        return nil;    }] deliverOnMainThread] ;    [sg subscribeNext:^(id  _Nullable x) {    } error:^(NSError * _Nullable error) {    }];}- (NSString *) zipPath:(NSString*)path{    //压缩zip文件,压缩文件名    ZipArchive *zip;    zip = [[ZipArchive alloc] init];    NSString*createZipPath = [path stringByAppendingPathComponent:@"scene.zip"];    //判断文件是否存在，如果存在则删除文件    NSFileManager * fileManager = [NSFileManager defaultManager];    @try    {        if([fileManager fileExistsAtPath:createZipPath])        {            if(![fileManager removeItemAtPath:createZipPath error:nil])            {            }        }    }    @catch(NSException * exception) {    }    [zip CreateZipFile2:createZipPath];    NSDirectoryEnumerator *dirEnum;    NSString *file,*str;;    //遍历这个目录的第一种方法：（深度遍历，会递归枚举它的内容）    dirEnum = [fileManager enumeratorAtPath:path];    while ((file = [dirEnum nextObject]) != nil)    {        //如果为zip文件，则跳过，不加入        if([file isEqualToString:@"scene.zip"]) continue;        str = [path stringByAppendingPathComponent:file];        [zip addFileToZip:str newname:file];        NSLog(@"%@",str);    }    [zip CloseZipFile2];    return createZipPath;}

记录下一个异步的栈，有空再补充分析下

 __36-[PTLVRSceneSettingsVC uploadScene:]_block_invoke.191  -[RACSubscriber sendNext:]  -[RACPassthroughSubscriber sendNext:]  __44-[RACSignal(Operations) deliverOnMainThread]_block_invoke_2.839  __44-[RACSignal(Operations) deliverOnMainThread]_block_invoke_3  main  __44-[RACSignal(Operations) deliverOnMainThread]_block_invoke_2  __44-[RACSignal(Operations) deliverOnMainThread]_block_invoke.838  -[RACSubscriber sendNext:]  -[RACPassthroughSubscriber sendNext:]  __36-[PTLVRSceneSettingsVC uploadScene:]_block_invoke_2  __36-[PTLVRSceneSettingsVC uploadScene:]_block_invoke  __30-[RACDynamicSignal subscribe:]_block_invoke  -[RACSubscriptionScheduler schedule:]  -[RACDynamicSignal subscribe:]  -[RACSignal(Subscription) subscribeNext:error:completed:]  __44-[RACSignal(Operations) deliverOnMainThread]_block_invoke  __30-[RACDynamicSignal subscribe:]_block_invoke  -[RACSubscriptionScheduler schedule:]  -[RACDynamicSignal subscribe:]  -[RACSignal(Subscription) subscribeNext:error:]  -[PTLVRSceneSettingsVC uploadScene:]  __39-[PTLVRSceneSettingsVC saveSceneStory:]_block_invoke