#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

extern const int kRequestStoped;
extern const int kInvalidResponse;


@interface PingModel : NSObject;

@property (readonly) NSDate * _Nullable startDate;
@property (readonly) NSDate * _Nullable endDate;

@property (readonly) NSString * _Nonnull host;
@property (readonly) NSTimeInterval delay;

@end




@interface PingResult : NSObject

@property (readonly) NSInteger code;
@property (readonly) NSTimeInterval delay;
@property (readonly) NSString * _Nonnull host;

- (NSString *_Nullable)description;

@end



typedef void (^PingCompleteHandler)(NSArray<PingResult*>* _Nonnull results);
@interface PingHelper : NSObject

- (void)ping:(NSArray <NSString*>*_Nonnull)hosts count:(NSInteger)count
      timeout:(NSTimeInterval)timeout complete:(PingCompleteHandler _Nullable)complete;

@end

NS_ASSUME_NONNULL_END