mutex.c File Reference

#include <windows.h>
#include <string.h>
#include <stdio.h>

Include dependency graph for mutex.c:

Go to the source code of this file.

Functions
void	dprintf (char *fmt,...)
DWORD WINAPI	thread1 (LPVOID crap)
DWORD WINAPI	thread2 (LPVOID crap)
int	main (int argc, char *argv[])

Variables
HANDLE	OutputHandle
HANDLE	InputHandle
HANDLE	hThread [2]
DWORD	dwCounter = 0
HANDLE	hMutex

Function Documentation

dprintf()

void dprintf	(	char *	fmt,
			...
	)

Definition at line 14 of file mutex.c.

{
   va_list args;
   char buffer[255];
 
   va_start(args,fmt);
   vsprintf(buffer,fmt,args);
   WriteConsoleA(OutputHandle, buffer, strlen(buffer), NULL, NULL);
   va_end(args);
}

main()

int main	(	int argc	,
		char *	argv[]
	)

Definition at line 88 of file mutex.c.

{
  DWORD dwError;
  DWORD id1,id2;
 
  AllocConsole();
  InputHandle = GetStdHandle(STD_INPUT_HANDLE);
  OutputHandle =  GetStdHandle(STD_OUTPUT_HANDLE);
 
  dprintf("Calling CreateMutex()\n");
  hMutex = CreateMutexW(NULL, FALSE, L"TestMutex");
  if (hMutex == INVALID_HANDLE_VALUE)
    {
      dprintf("CreateMutex() failed! Error: %lu\n", GetLastError());
      return 0;
    }
  dprintf("CreateMutex() succeeded!\n");
 
  hThread[0] = CreateThread(0, 0, thread1, 0, 0, &id1);
  hThread[1] = CreateThread(0, 0, thread2, 0, 0, &id2);
 
  dprintf("Calling WaitForMultipleObject()\n");
  dwError = WaitForMultipleObjects(2, hThread, TRUE, INFINITE);
  dprintf("WaitForMultipleObject() Error: %lu\n", dwError);
 
  CloseHandle(hThread[0]);
  CloseHandle(hThread[1]);
 
  CloseHandle(hMutex);
 
  dprintf("Main thread done!\n");
 
  return 0;
}

thread1()

DWORD WINAPI thread1

(

LPVOID

crap

)

Definition at line 26 of file mutex.c.

{
  DWORD dwError = 0;
  DWORD i;
 
  dprintf("Thread 1 running!\n");
 
  for (i = 0; i < 10; i++)
    {
      dwError = WaitForSingleObject(hMutex, INFINITE);
      if (dwError == WAIT_FAILED)
    {
      dprintf("Thread2: WaitForSingleObject failed!\n");
      return 1;
    }
      else if (dwError == WAIT_ABANDONED_0)
    {
      dprintf("Thread2: WaitForSingleObject returned WAIT_ABANDONED_0\n");
    }
 
      dprintf("Thread1: dwCounter : %lu -->", dwCounter);
      dwCounter++;
      dprintf(" %lu\n", dwCounter);
      ReleaseMutex(hMutex);
    }
 
  dprintf("Thread 1 done!\n");
 
  return 1;
}

Referenced by main().

thread2()

DWORD WINAPI thread2

(

LPVOID

crap

)

Definition at line 57 of file mutex.c.

{
  DWORD dwError = 0;
  DWORD i;
  dprintf("Thread 2 running!\n");
 
  for (i = 0; i < 10; i++)
    {
      dwError = WaitForSingleObject(hMutex, INFINITE);
      if (dwError == WAIT_FAILED)
    {
      dprintf("Thread2: WaitForSingleObject failed!\n");
      return 1;
    }
      else if (dwError == WAIT_ABANDONED_0)
    {
      dprintf("Thread2: WaitForSingleObject returned WAIT_ABANDONED_0\n");
    }
 
      dprintf("Thread2: dwCounter : %lu -->", dwCounter);
      dwCounter++;
      dprintf(" %lu\n", dwCounter);
      ReleaseMutex(hMutex);
    }
 
  dprintf("Thread 2 done!\n");
 
  return 1;
}

Referenced by main().

Variable Documentation

dwCounter

DWORD dwCounter = 0

Definition at line 10 of file mutex.c.

Referenced by GetTextSid(), GetTextualSid(), thread1(), and thread2().

hMutex

HANDLE hMutex

Definition at line 11 of file mutex.c.

Referenced by _tWinMain(), CloseSharedMemory(), ATL::CMutex::Create(), CreateProfileMutex(), CSafeMutex::Enter(), K32CreateDBMonMutex(), main(), NPCancelConnection(), NPEnumResource(), NPGetConnection(), ATL::CMutex::Open(), ParseCmdAndExecute(), ReleaseMutex(), StoreConnectionInfo(), TF_IsCtfmonRunning(), thread1(), thread2(), UManStartDlg(), and wWinMain().

hThread

HANDLE hThread[2]

Definition at line 9 of file mutex.c.

Referenced by main().

InputHandle

HANDLE InputHandle

Definition at line 7 of file mutex.c.

Referenced by main().

OutputHandle

HANDLE OutputHandle

Definition at line 6 of file mutex.c.

Referenced by dprintf(), and main().