#include <thread/mutex.hpp>
#include <thread/postfix.hpp>

Mutex::Mutex(void)
: mhMutex(0), mMutexName("Mutex")
{
  PostFix postFix;
	postFix.postFix(mMutexName);
	mhMutex=::CreateMutex((LPSECURITY_ATTRIBUTES)0,FALSE,mMutexName);
}

Mutex::Mutex(const String &mutexName,BOOL postFixup)
: mhMutex(0)
{
  PostFix postFix;
	if(mutexName.isNull())return;
  mMutexName=mutexName;
  if(postFixup)postFix.postFix(mMutexName);
	mhMutex=::CreateMutex((LPSECURITY_ATTRIBUTES)0,FALSE,mMutexName);
}

WORD Mutex::requestMutex(DWORD waitTime,WORD alertable)const
{
	DWORD waitResult;

  if(!isOkay())return FALSE;
	waitResult=::WaitForSingleObjectEx(mhMutex,waitTime,alertable);
	if(WAIT_ABANDONED==waitResult)return FALSE;
	else if(WAIT_TIMEOUT==waitResult)return FALSE;
	else if(WAIT_OBJECT_0==waitResult)return TRUE;
	else return TRUE;
	return TRUE;
}

WORD Mutex::releaseMutex(void)const
{
  if(!isOkay())return FALSE;
	return ::ReleaseMutex(mhMutex);
}

WORD Mutex::closeMutex(void)
{
  if(!isOkay())return FALSE;
	::CloseHandle(mhMutex);
	mhMutex=0;
	return TRUE;
}