UINT CDiskSpeedDlg: : ZWrite (LPVOID lpParam)//thread 1 
{
. 
} 
UINT ThreadProc (LPVOID Param)//thread 2 
{
While (true) 
{
Sleep (1000); 
CProgressCtrl * Speed=(CProgressCtrl * Param); 

If (Speed - & gt; GetPos ()==nUpper) 
{
Speed - & gt; SetPos (nLower); 
} 
If (I % r!=0) 
{
break; 
} 
If (I % r==0) 
{
Speed - & gt; StepIt (); 
} 
} 
return 0; 
} 

I want to keep thread 2 normally open the effect of every 1 second to perform a thread for execution and 1,
Interface effect
Thread 1 is continuing to output data, the edit box (completed)
Thread by thread 1 2 changes to the global variable (I) to determine whether I meet the execution conditions of thread 2, if meet, does not meet the exit, but 2 threads to every 1 second to judge a what should I do?? Very urgent! Me how to change the above code should be??
Don't use the mutex or semaphore, if use what should I change

CodePudding user response:

Is to make the thread 2 every 1 seconds once, what should I do

CodePudding user response:

The first step is to open a thread to judge whether meet the conditions, does not meet the thread exits
Second, wait a second thread, open another judgment
Waiting for a second open thread again,,,,,,,,,,,,,,,,, how should I change??

CodePudding user response:

CRITICAL_SECTION m_CS;
InitializeCriticalSection (& amp; M_CS);
DeleteCriticalSection (& amp; M_CS);

The EnterCriticalSection (& amp; M_CS);
The operation I
LeaveCriticalSection (& amp; M_CS);

CodePudding user response:

Directly with a timer, cycle for 1 second

CodePudding user response:

In the thread control is a dangerous operation, ThreadProc has a problem, use a timer