int checksum_test()
{
int ret = 0, send_times =0;
udt_pocketbuf packet;
u_32 check_sum,cs_tmp ;
int nReadNum = rand() %(_READ_SIZE-10) +1 ;
char *paddr ;
FILE *pf = fopen("3.pdf", "r+b") ;
if(!pf) {
printf("open file error!\n") ;
return -1;
}
init_udt_pocket(&(packet.pocket)) ;
paddr =pocket_data(&(packet.pocket));
POCKET_TYPE(&(packet.pocket)) = 3 ;
while(nReadNum=fread(paddr,1,nReadNum,pf)) {
calc_cs(&packet ,nReadNum) ;
nd_sleep(1);
check_sum = POCKET_CHECKSUM(&(packet.pocket)) ;
POCKET_CHECKSUM(&(packet.pocket)) = 0 ;
nReadNum += ndt_header_size(&(packet.pocket)) ;
cs_tmp = nd_checksum((NDUINT16*)&(packet.pocket),nReadNum) ;
if(cs_tmp!=check_sum) {
ndprintf("test checksum error check_sum=%d cs_tmp=%d\n", check_sum,cs_tmp);
getch() ;
exit(1);
}
else{
ndprintf("test check OK\n", ++send_times,ret);
}
nReadNum = rand() %(_READ_SIZE-10) +1 ;
}
fclose(pf) ;
//nd_connector_send(connect_handle,&msg_buf,ESF_URGENCY) ;
return 0;
}
uint16_t m68307_cpu_device::get_cs(offs_t address)
{
m68307_currentcs = calc_cs(address);
return m68307_currentcs;
}
