TestTimeouts.c

 
#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 = { 0 };
  COMMTIMEOUTS timeouts2 = { 0 };
 
  timeouts.ReadIntervalTimeout = 1;
  timeouts.ReadTotalTimeoutMultiplier = 2;
  timeouts.ReadTotalTimeoutConstant = 3;
  timeouts.WriteTotalTimeoutMultiplier = 4;
  timeouts.WriteTotalTimeoutConstant = 5;
 
  if (!SetCommTimeouts(hComm, &timeouts))
  {
    (void)fprintf(stderr, "SetCommTimeouts failure, GetLastError: 0x%08x\n", GetLastError());
    return FALSE;
  }
 
  if (!GetCommTimeouts(hComm, &timeouts2))
  {
    (void)fprintf(stderr, "GetCommTimeouts failure, GetLastError: 0x%08x\n", GetLastError());
    return FALSE;
  }
 
  if (memcmp(&timeouts, &timeouts2, sizeof(COMMTIMEOUTS)) != 0)
  {
    (void)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))
  {
    (void)fprintf(
        stderr,
        "SetCommTimeouts succeeded with ReadIntervalTimeout and ReadTotalTimeoutConstant "
        "set to MAXULONG. GetLastError: 0x%08x\n",
        GetLastError());
    return FALSE;
  }
 
  if (GetLastError() != ERROR_INVALID_PARAMETER)
  {
    (void)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 = 0;
  HANDLE hComm = NULL;
 
  if (stat("/dev/ttyS0", &statbuf) < 0)
  {
    (void)fprintf(stderr, "/dev/ttyS0 not available, making the test to succeed though\n");
    return EXIT_SUCCESS;
  }
 
  result = DefineCommDevice("COM1", "/dev/ttyS0");
  if (!result)
  {
    (void)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)
  {
    (void)fprintf(stderr, "CreateFileA failure: 0x%x\n", GetLastError());
    return EXIT_FAILURE;
  }
 
  _comm_setServerSerialDriver(hComm, SerialDriverSerialSys);
  if (!test_generic(hComm))
  {
    (void)fprintf(stderr, "test_SerialSys failure\n");
    return EXIT_FAILURE;
  }
 
  _comm_setServerSerialDriver(hComm, SerialDriverSerCxSys);
  if (!test_generic(hComm))
  {
    (void)fprintf(stderr, "test_SerCxSys failure\n");
    return EXIT_FAILURE;
  }
 
  _comm_setServerSerialDriver(hComm, SerialDriverSerCx2Sys);
  if (!test_generic(hComm))
  {
    (void)fprintf(stderr, "test_SerCx2Sys failure\n");
    return EXIT_FAILURE;
  }
 
  if (!CloseHandle(hComm))
  {
    (void)fprintf(stderr, "CloseHandle failure, GetLastError()=%08x\n", GetLastError());
    return EXIT_FAILURE;
  }
 
  return EXIT_SUCCESS;
}