Monitor Process Thread

[[email protected]]

I have created 3 threads in my code:

#include <windows.h>
#include <strsafe.h>

#define MAX_THREADS 3
#define BUF_SIZE 255

typedef struct _MyData {
int val1;
int val2;
} MYDATA, *PMYDATA;

DWORD WINAPI ThreadProc( LPVOID lpParam )
{
HANDLE hStdout;
PMYDATA pData;

TCHAR msgBuf[BUF_SIZE];
size_t cchStringSize;
DWORD dwChars;

hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
if( hStdout == INVALID_HANDLE_VALUE )
return 1;

// Cast the parameter to the correct data type.

pData = (PMYDATA)lpParam;

// Print the parameter values using thread-safe functions.

StringCchPrintf(msgBuf, BUF_SIZE, TEXT("Parameters = %d, %d\n"),
pData->val1, pData->val2);
StringCchLength(msgBuf, BUF_SIZE, &cchStringSize);
WriteConsole(hStdout, msgBuf, cchStringSize, &dwChars, NULL);

// Free the memory allocated by the caller for the thread
// data structure.

HeapFree(GetProcessHeap(), 0, pData);

return 0;
}

void main()
{
PMYDATA pData;
DWORD dwThreadId[MAX_THREADS];
HANDLE hThread[MAX_THREADS];
int i;

// Create MAX_THREADS worker threads.

for( i=0; i<MAX_THREADS; i++ )
{
// Allocate memory for thread data.

pData = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(MYDATA));

if( pData == NULL )
ExitProcess(2);

// Generate unique data for each thread.

pData->val1 = i;
pData->val2 = i+100;

hThread[i] = CreateThread(
NULL, // default security attributes
0, // use default stack size
ThreadProc, // thread function
pData, // argument to thread function
0, // use default creation flags
&dwThreadId[i]); // returns the thread identifier

// Check the return value for success.

if (hThread[i] == NULL)
{
ExitProcess(i);
}
}

// Wait until all threads have terminated.

WaitForMultipleObjects(MAX_THREADS, hThread, TRUE, INFINITE);

// Close all thread handles upon completion.

for(i=0; i<MAX_THREADS; i++)
{
CloseHandle(hThread[i]);
}
}

But in tools like performance monitor, process explorer it show only one thread count.
What may be the reason that even after creating 3 threads these tools are showing only one?
Why I am not getting the thread count of 3?

[itsmeandnobodyelse]

Please use [c o d e] [/c o d e] tags or the code is hardly readable.

In the ThreadProc I don't see an infinite loop or any wait operation. If so, the threads would end within very little time and only the main thread shows in the tools.

[itsmeandnobodyelse]

Note, your thread count must be 4 if all three additional threads were running.

You could do a Sleep(20000); into the thread function and you should see the correct count for 20 seconds.

[[email protected]]

Thanks Itsme for the reply.