/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * thread creation * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

if(! SetCommMask (hCom, EV_RXCHAR)) 
{
AfxMessageBox (L "create mask failed"); 
} 
HThreadEvent=CreateThread (NULL, 0, (LPTHREAD_START_ROUTINE) ThreadProcEven, & amp; DwParam, 0, & amp; DwThreadID); 
If (hThreadEvent==INVALID_HANDLE_VALUE) 
{
AfxMessageBox (L "event thread creation failed"); 
} 
The else 
{
FEventRun=true; 
BlnOpened=true; 
} 

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * thread function * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
DWORD ThreadProcEven (LPVOID pParam) 
{
BYTE ah [20]. 
Cstrings myStr; 
DWORD dwRead dwRes; 
DWORD dwEvtMask, error; 
While (fEventRun) 
{
DwEvtMask=0; 
Eol. HEvent=CreateEvent (NULL, true, false, NULL);//EOL OVERLAPPED structure is set to no signal 
WaitCommEvent (hCom, & amp; DwEvtMask, & amp; Eol);//wait for the EOL into a signal 
The switch (dwEvtMask) 
{
Case EV_RXCHAR://when there is a character in the input buffer to perform a read operation 
{
Rol. HEvent=CreateEvent (NULL, true, false, NULL);//set the ROl to no signal 
If (Rol. HEvent==NULL) 
{
AfxMessageBox (L "hEvent empty"); 
return -1; 
} 
If (ReadFile (hCom, & amp; Ah, 5, NULL, & amp; Rol))//read the data in the ah 
{
if(! PurgeComm (hCom, PURGE_RXCLEAR))//clear input buffer 
{
Error=GetLastError (); 
MyStr. The Format (_T (" ERROR coed: [% d] "), the ERROR). 
AfxMessageBox (myStr);//display an error message 
} 
AfxMessageBox (L "successfully read data 1"); 
} 
The else 
{
DwRes=WaitForSingleObject (Rol. HEvent, 5000);//waiting for the read operation is completed 
The switch (dwRes) 
{
Case WAIT_OBJECT_0: 
{
AfxMessageBox (L "successful readout 2"); 
if(! PurgeComm (hCom, PURGE_RXCLEAR)) 
{
Error=GetLastError (); 
MyStr. The Format (_T (" ERROR coed: [% d] "), the ERROR). 
AfxMessageBox (myStr); 
} 
} 
break; 
Case WAIT_TIMEOUT: 
{
AfxMessageBox (L "timeout"); 
break; 
} 
} 
} 
} 
} 
} 
return 0; 
} 
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */




/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * off thread * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

FEventRun=false; 
The CloseHandle (hThreadEvent); 
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

When debugging computer kept crashing
360 the number has been risen debugging has been increased to 99% and then blue screen
What reason is this?????

CodePudding user response:

The while loop in memory leaks