//
//  RQDownloadOperation.h
//  TEST
//
//  Created by 张嵘 on 2018/10/22.
//  Copyright © 2018 张嵘. All rights reserved.
//

#import <Foundation/Foundation.h>

typedef void(^DownloadStatusChangedBlock)(void);

@class RQDownloadModel;

@interface RQDownloadOperation : NSOperation

@property (nonatomic, weak) RQDownloadModel * downloadModel;

@property (nonatomic, strong) NSURLSessionDataTask * downloadTask;

@property (nonatomic ,weak) NSURLSession *session;

//状态改变回调
@property (nonatomic, copy) DownloadStatusChangedBlock downloadStatusChangedBlock;

- (instancetype)initWithDownloadModel:(RQDownloadModel *)downloadModel andSession:(NSURLSession *)session;


- (void)suspend;
- (void)resume;

@end