freerdp/winpr/libwinpr/comm/test/TestTimeouts.c

/**
 * WinPR: Windows Portable Runtime
 * Serial Communication API
 *
 * Copyright 2014 Hewlett-Packard Development Company, L.P.
 *
 * 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 <stdio.h>
#include <sys/stat.h>

#ifndef _WIN32
#include <termios.h>
#endif

#include <winpr/comm.h>
#include <winpr/crt.h>

#include "../comm.h"

static BOOL test_generic(HANDLE hComm)
{
	COMMTIMEOUTS timeouts, timeouts2;

	timeouts.ReadIntervalTimeout = 1;
	timeouts.ReadTotalTimeoutMultiplier = 2;
	timeouts.ReadTotalTimeoutConstant = 3;
	timeouts.WriteTotalTimeoutMultiplier = 4;
	timeouts.WriteTotalTimeoutConstant = 5;

	if (!SetCommTimeouts(hComm, &timeouts))
	{
		fprintf(stderr, "SetCommTimeouts failure, GetLastError: 0x%08x\n", GetLastError());
		return FALSE;
	}

	ZeroMemory(&timeouts2, sizeof(COMMTIMEOUTS));
	if (!GetCommTimeouts(hComm, &timeouts2))
	{
		fprintf(stderr, "GetCommTimeouts failure, GetLastError: 0x%08x\n", GetLastError());
		return FALSE;
	}

	if (memcmp(&timeouts, &timeouts2, sizeof(COMMTIMEOUTS)) != 0)
	{
		fprintf(stderr, "TestTimeouts failure, didn't get back the same timeouts.\n");
		return FALSE;
	}

	/* not supported combination */
	timeouts.ReadIntervalTimeout = MAXULONG;
	timeouts.ReadTotalTimeoutConstant = MAXULONG;
	if (SetCommTimeouts(hComm, &timeouts))
	{
		fprintf(stderr,
		        "SetCommTimeouts succeeded with ReadIntervalTimeout and ReadTotalTimeoutConstant "
		        "set to MAXULONG. GetLastError: 0x%08x\n",
		        GetLastError());
		return FALSE;
	}

	if (GetLastError() != ERROR_INVALID_PARAMETER)
	{
		fprintf(stderr,
		        "SetCommTimeouts failure, expected GetLastError to return ERROR_INVALID_PARAMETER "
		        "and got: 0x%08x\n",
		        GetLastError());
		return FALSE;
	}

	return TRUE;
}

int TestTimeouts(int argc, char* argv[])
{
	struct stat statbuf;
	BOOL result;
	HANDLE hComm;

	if (stat("/dev/ttyS0", &statbuf) < 0)
	{
		fprintf(stderr, "/dev/ttyS0 not available, making the test to succeed though\n");
		return EXIT_SUCCESS;
	}

	result = DefineCommDevice("COM1", "/dev/ttyS0");
	if (!result)
	{
		fprintf(stderr, "DefineCommDevice failure: 0x%x\n", GetLastError());
		return EXIT_FAILURE;
	}

	hComm = CreateFile("COM1", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
	if (hComm == INVALID_HANDLE_VALUE)
	{
		fprintf(stderr, "CreateFileA failure: 0x%x\n", GetLastError());
		return EXIT_FAILURE;
	}

	_comm_setServerSerialDriver(hComm, SerialDriverSerialSys);
	if (!test_generic(hComm))
	{
		fprintf(stderr, "test_SerialSys failure\n");
		return EXIT_FAILURE;
	}

	_comm_setServerSerialDriver(hComm, SerialDriverSerCxSys);
	if (!test_generic(hComm))
	{
		fprintf(stderr, "test_SerCxSys failure\n");
		return EXIT_FAILURE;
	}

	_comm_setServerSerialDriver(hComm, SerialDriverSerCx2Sys);
	if (!test_generic(hComm))
	{
		fprintf(stderr, "test_SerCx2Sys failure\n");
		return EXIT_FAILURE;
	}

	if (!CloseHandle(hComm))
	{
		fprintf(stderr, "CloseHandle failure, GetLastError()=%08x\n", GetLastError());
		return EXIT_FAILURE;
	}

	return EXIT_SUCCESS;
}