raii_sample_02

/******************************************************************************
 * RAII (Resource Acquisition Is Initialization )
******************************************************************************/
/*	ex)
	raii_handle map_handle(
					CreateFileMapping(file_handle, NULL, PAGE_READONLY, 0, 1, NULL), 
					raii_CloseHandle
					);
	if (NULL == map_handle.get())
	{
		err...
	}
	
	//> U don't need call CloseHandle() manually. 
	//> When 'file_handle' enter out of this scope, raii_CloseHandle() function called automatically :-)

*/
typedef boost::shared_ptr< boost::remove_pointer<HANDLE>::type > raii_handle;
void raii_CloseHandle(_In_ HANDLE handle);

/* 
	raii_void_ptr ods_buf( malloc(ods_size), raii_free );
	if (NULL == ods_buf.get())
	{
		err...
	}
	...
	ods_buf.get();
	...


	raii_void_ptr map_ptr(
		MapViewOfFile(map_handle.get(), FILE_MAP_READ, 0, 0, 1), 
		raii_UnmapViewOfFile
		);
	if (NULL == map_ptr.get())
	{
		err...
	}

*/
typedef boost::shared_ptr< boost::remove_pointer<wchar_t*>::type > raii_wchar_ptr;
typedef boost::shared_ptr< boost::remove_pointer<char*>::type > raii_char_ptr;
typedef boost::shared_ptr< boost::remove_pointer<void*>::type > raii_void_ptr;
void raii_free(_In_ void* void_ptr);
void raii_UnmapViewOfFile(_In_ void* void_ptr);