//
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// RHSocketUtils.h
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// RHSocketKitDemo
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//
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// Created by zhuruhong on 15/12/23.
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// Copyright © 2015年 zhuruhong. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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@interface RHSocketUtils : NSObject
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/**
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* 反转字节序列
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*
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* @param srcData 原始字节NSData
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*
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* @return 反转序列后字节NSData
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*/
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+ (NSData *)dataWithReverse:(NSData *)srcData;
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/** 将数值转成字节。编码方式：低位在前，高位在后 */
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+ (NSData *)byteFromInt8:(int8_t)val;
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+ (NSData *)bytesFromInt16:(int16_t)val;
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+ (NSData *)bytesFromInt32:(int32_t)val;
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+ (NSData *)bytesFromInt64:(int64_t)val;
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+ (NSData *)bytesFromValue:(int64_t)value byteCount:(int)byteCount;
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+ (NSData *)bytesFromValue:(int64_t)value byteCount:(int)byteCount reverse:(BOOL)reverse;
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/** 将字节转成数值。解码方式：前序字节为低位，后续字节为高位 */
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+ (int8_t)int8FromBytes:(NSData *)data;
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+ (int16_t)int16FromBytes:(NSData *)data;
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+ (int32_t)int32FromBytes:(NSData *)data;
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+ (int64_t)int64FromBytes:(NSData *)data;
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+ (int64_t)valueFromBytes:(NSData *)data;
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+ (int64_t)valueFromBytes:(NSData *)data reverse:(BOOL)reverse;
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/** 将字符串转换为data。例如：返回8个字节的data， upano --> <7570616e 6f000000> */
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+ (NSData *)dataFromNormalString:(NSString *)normalString byteCount:(int)byteCount;
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/** 16进制字符串转换为data。24211D3498FF62AF --> <24211D34 98FF62AF> */
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+ (NSData *)dataFromHexString:(NSString *)hexString;
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/** data转换为16进制。<24211D34 98FF62AF> --> 24211D3498FF62AF */
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+ (NSString *)hexStringFromData:(NSData *)data;
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/** hex字符串转换为ascii码。00de0f1a8b24211D3498FF62AF --> 3030646530663161386232343231314433343938464636324146 */
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+ (NSString *)asciiStringFromHexString:(NSString *)hexString;
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/** ascii码转换为hex字符串。343938464636324146 --> 498FF62AF */
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+ (NSString *)hexStringFromASCIIString:(NSString *)asciiString;
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// Return line separators.
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+ (NSData *)CRLFData;
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+ (NSData *)CRData;
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+ (NSData *)LFData;
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+ (NSData *)ZeroData;
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@end
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