Method GlobalPortLock

src/remote/server/server.cpp:877–901

{
public:
	explicit GlobalPortLock(int id)
		: handle(INVALID_HANDLE_VALUE)
	{
		if (id)
		{
			TEXT mutex_name[MAXPATHLEN];
			fb_utils::snprintf(mutex_name, sizeof(mutex_name), "FirebirdPortMutex%d", id);
			fb_utils::prefix_kernel_object_name(mutex_name, sizeof(mutex_name));

			if (!(handle = CreateMutex(ISC_get_security_desc(), FALSE, mutex_name)))
			{
				// MSDN: if the caller has limited access rights, the function will fail with
				// ERROR_ACCESS_DENIED and the caller should use the OpenMutex function.
				if (GetLastError() == ERROR_ACCESS_DENIED)
					system_call_failed::raise("CreateMutex - cannot open existing mutex");
				else
					system_call_failed::raise("CreateMutex");
			}

			if (WaitForSingleObject(handle, INFINITE) == WAIT_FAILED)
			{
				system_call_failed::raise("WaitForSingleObject");
			}
		}
	}

	~GlobalPortLock()
	{