handle.cpp

来自「IO函数调用测试」· C++ 代码 · 共 35 行

#include "stdafx.h"
#include "TraceEvent.h"
#include "handle.h"

int CHandle::count = 0;

/****************************************************************************
*                           CHandle::closeTheHandle
* Result: void
*       
* Effect: 
*       This is actually the body of the destructor, but the C++
*	compiler erroneously diagnoses the __try/__finally as being illegal
*	in a destructor, so by moving it out to a separate method and
*	calling that method from the destructor we avoid this compiler bug.
****************************************************************************/

void CHandle::closeTheHandle()
   {
    __try {
    	    ::CloseHandle(h); 
	  }
    __except(EXCEPTION_EXECUTE_HANDLER) // STATUS_INVALID_HANDLE exception
    	  {
	   // ignore it!
	  }
   }

CHandle::~CHandle()
   {
    if(h == NULL) 
       return;
    closeTheHandle();
   }