text: /**
   * CTest for winpr's SetLastError/GetLastError
   *
   * Copyright 2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
   * Copyright 2013 Thincast Technologies GmbH
   * Copyright 2013 Norbert Federa <norbert.federa@thincast.com>
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #include <winpr/crt.h>
  #include <winpr/wlog.h>
  #include <winpr/synch.h>
  #include <winpr/thread.h>
  #include <winpr/interlocked.h>
  
  #include <winpr/error.h>
  
  static int status = 0;
  
  LONG *pLoopCount = NULL;
  BOOL bStopTest = FALSE;
  
  static void* test_error_thread(void* arg)
  {
  	int id;
  	DWORD dwErrorSet;
  	DWORD dwErrorGet;
  
  	id = (int) (size_t) arg;
  
  	do {
  		dwErrorSet = (DWORD)rand();
  		SetLastError(dwErrorSet);
  		if ((dwErrorGet = GetLastError()) != dwErrorSet)
  		{
  			printf("GetLastError() failure (thread %d): Expected: 0x%04X, Actual: 0x%04X\n",
  				id, dwErrorSet, dwErrorGet);
  			if (!status)
  				status = -1;
  			break;
  		}
  		InterlockedIncrement(pLoopCount);
  	} while (!status && !bStopTest);
  
  	return NULL;
  }
  
  int TestErrorSetLastError(int argc, char* argv[])
  {
  	DWORD error;
  	HANDLE threads[4];
  	int i;
  
  	/* We must initialize WLog here. It will check for settings
  	 * in the environment and if the variables are not set, the last
  	 * error state is changed... */
  	WLog_GetRoot();
  
  	SetLastError(ERROR_ACCESS_DENIED);
  
  	error = GetLastError();
  
  	if (error != ERROR_ACCESS_DENIED)
  	{
  		printf("GetLastError() failure: Expected: 0x%04X, Actual: 0x%04X\n",
  				ERROR_ACCESS_DENIED, error);
  		return -1;
  	}
  
  	pLoopCount = _aligned_malloc(sizeof(LONG), sizeof(LONG));
  	if (!pLoopCount)
  	{
  		printf("Unable to allocate memory\n");
  		return -1;
  	}
  	*pLoopCount = 0;
  
  	for (i = 0; i < 4; i++)
  	{
  		if (!(threads[i] = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE) test_error_thread, (void*) (size_t) 0, 0, NULL)))
  		{
  			printf("Failed to create thread #%d\n", i);
  			return -1;
  		}
  	}
  
  	// let the threads run for at least 2 seconds
  	Sleep(2000);
  	bStopTest = TRUE;
  
  	WaitForSingleObject(threads[0], INFINITE);
  	WaitForSingleObject(threads[1], INFINITE);
  	WaitForSingleObject(threads[2], INFINITE);
  	WaitForSingleObject(threads[3], INFINITE);
  
  	CloseHandle(threads[0]);
  	CloseHandle(threads[1]);
  	CloseHandle(threads[2]);
  	CloseHandle(threads[3]);
  
  	error = GetLastError();
  
  	if (error != ERROR_ACCESS_DENIED)
  	{
  		printf("GetLastError() failure: Expected: 0x%04X, Actual: 0x%04X\n",
  				ERROR_ACCESS_DENIED, error);
  		return -1;
  	}
  
  	if (*pLoopCount < 4)
  	{
  		printf("Error: unexpected loop count\n");
  		return -1;
  	}
  
  	printf("Completed %d iterations.\n", *pLoopCount);
  
  	return status;
  }
  
  