UDP切包发送。避免发送内容大于MTU

struct PS_Buf

{

char * data_buf;

char * ptr;

int len;

};

int sendlen;

void STDCALL CIvms8200::StreamCallBack(long RealHandle, int StreamType, const char *Data, int DataLen, const char *DecoderTag, void *UserData)

{

if(flag_t == 0)

{

flag_t = 1;

fp = fopen("C:\\Users\\Administrator\\Desktop\\TaiZhou\\API.ps","wb");

fp_t = fopen("C:\\Users\\Administrator\\Desktop\\TaiZhou\\UDP.ps","wb");

}

fwrite(Data,DataLen,1,fp);

CALL_INFO_ST *pItem = static_cast<CALL_INFO_ST *>(UserData);

PS_Buf PS = {0};

PS.data_buf = (char*)Data;

PS.len = DataLen;

PS.ptr = PS.data_buf;

while(PS.len >= 0)

{

if(PS.len >= 1316)

{

sendlen = sendto(pItem->iSocket, (const char *)PS.ptr, 1316, 0, (SOCKADDR *)&pItem->addr, sizeof(SOCKADDR));

fwrite(PS.ptr,sendlen,1,fp_t);

PS.ptr += sendlen;

}else if(PS.len >0)

{

sendlen = sendto(pItem->iSocket, (const char *)PS.ptr, PS.len, 0, (SOCKADDR *)&pItem->addr, sizeof(SOCKADDR));

fwrite(PS.ptr,PS.len,1,fp_t);

}

PS.len -= sendlen;

printf("data size is ------->%d\n",PS.len);

}

//sendto(pItem->iSocket, (const char *)Data, DataLen, 0, (SOCKADDR *)&pItem->addr, sizeof(SOCKADDR));

}