boostdatadeal.cpp

把C语言的thread和socket封装了一层.希望能给初学者带来帮助.

#include "BoostDataDeal.h"
int BoostDataDeal::rxdata_check(char *buff)
{
	char *check;
	int i=0,j,len,num;
	unsigned char vc=0;
	unsigned char uc;
	check=buff;
	if(check[i++]!='B')
	{
		return -1;
	}
	if(check[i++]!='O')
	{
		return -1;
	}
	if(check[i++]!='O')
	{
		return -1;
	}
	if(check[i++]!='S')
	{
		return -1;
	}
	if(check[i++]!='T')
	{
		return -1;
	}   
	len=check[i++];
	vc=len;
	i+=3;
	num=check[i++];
	for(j=i+len;i<j;i++)
	{
		vc^=check[i];
	}
    uc=check[i];
    if(uc!=vc)
	{
		return -1;
	}
    i++;
	if(check[i++]!='E')
	{       
		return -1;
	}
	if(check[i++]!='N')
	{
		return -1;
	}	
	if(check[i]!='D')
	{
		return -1;
	}
    return num;

}

int BoostDataDeal::udata_deal(char *buff1,char *buff2,char j,int l)
{
	char *check,llpp[]={13,10};
	int i,k,len;
	unsigned char vc=0;
	i=0;
	len=l;
	check=buff1;
	buff2[i++]='B';
	buff2[i++]='O';
	buff2[i++]='O';
	buff2[i++]='S';
	buff2[i++]='T';
	buff2[i]=len;
	vc^=buff2[i];
	i++;  
	buff2[i++]='C';
	buff2[i++]='O';
	buff2[i++]='M';
	buff2[i++]=j;
	for(k=0;k<len;k++)
	{
		buff2[i]=check[k];
		vc^=buff2[i];
		i++;  
	}  
	buff2[i++]=vc;
	buff2[i++]='E';
	buff2[i++]='N';
	buff2[i++]='D';
    buff2[i++]=llpp[0];
	buff2[i++]=llpp[1];
	return 0;
}