C++ (Cpp) openSyslog Examples

Example #1

File: zm_logger.cpp Project: gtgt/ZoneMinder

Logger::Level Logger::syslogLevel( Logger::Level syslogLevel ) {
  if ( syslogLevel > NOOPT ) {
    syslogLevel = limit(syslogLevel);
    if ( mSyslogLevel != syslogLevel ) {
      if ( mSyslogLevel > NOLOG )
        closeSyslog();
      mSyslogLevel = syslogLevel;
      if ( mSyslogLevel > NOLOG )
        openSyslog();
    }
  }
  return( mSyslogLevel );
}

Example #2

File: PiGatewaySerial.cpp Project: Debianguru/Raspberry

/*
 * Main gateway logic
 */
int main(int argc, char **argv)
{
	struct pollfd fds;
	struct group* devGrp;
	
	MyGateway *gw = NULL;
	int status = EXIT_SUCCESS;
	int ret, c;
	
	while ((c = getopt (argc, argv, "d")) != -1) 
	{
    	switch (c)
      	{
      		case 'd':
        		daemonizeFlag = 1;
        		break;
        }
    }
	openSyslog();
	log(LOG_INFO,"Starting PiGatewaySerial...\n");
	log(LOG_INFO,"Protocol version - %s\n", LIBRARY_VERSION);

	/* register the signal handler */
	signal(SIGINT, handle_sigint);
	signal(SIGTERM, handle_sigint);
	signal(SIGUSR1, handle_sigusr1);
	
	/* create MySensors Gateway object */
#ifdef __PI_BPLUS
	gw = new MyGateway(RPI_BPLUS_GPIO_J8_22, RPI_BPLUS_GPIO_J8_24, BCM2835_SPI_SPEED_8MHZ, 1);
#else
	gw = new MyGateway(RPI_V2_GPIO_P1_22, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_8MHZ, 1);
#endif	
	if (gw == NULL)
	{
		log(LOG_ERR,"Could not create MyGateway! (%d) %s\n", errno, strerror(errno));
		status = EXIT_FAILURE;
		goto cleanup;
	}

	/* create PTY - Pseudo TTY device */
	ret = openpty(&pty_master, &pty_slave, NULL, NULL, NULL);
	if (ret != 0) 
	{
		log(LOG_ERR,"Could not create a PTY! (%d) %s\n", errno, strerror(errno));
		status = EXIT_FAILURE;
		goto cleanup;
	}
	errno = 0;
	devGrp = getgrnam(devGroupName);
	if(devGrp == NULL) 
	{
       log(LOG_ERR,"getgrnam: %s failed. (%d) %s\n", devGroupName, errno, strerror(errno));
       status = EXIT_FAILURE;
       goto cleanup;
    }
    ret = chown(ttyname(pty_slave),-1,devGrp->gr_gid);
    if (ret == -1) 
    {
    	log(LOG_ERR,"chown failed. (%d) %s\n", errno, strerror(errno));
    	status = EXIT_FAILURE;
    	goto cleanup;
    }
	ret = chmod(ttyname(pty_slave),ttyPermissions);
	if (ret != 0) 
	{
		log(LOG_ERR,"Could not change PTY permissions! (%d) %s\n", errno, strerror(errno));
		status = EXIT_FAILURE;
		goto cleanup;
	}
	log(LOG_INFO,"Created PTY '%s'\n", ttyname(pty_slave));
	
	/* create a symlink with predictable name to the PTY device */
	unlink(serial_tty);	// remove the symlink if it already exists
	ret = symlink(ttyname(pty_slave), serial_tty);
	if (ret != 0)
	{
		log(LOG_ERR,"Could not create a symlink '%s' to PTY! (%d) %s\n", serial_tty, errno, strerror(errno));
    	status = EXIT_FAILURE;
        goto cleanup;
	}
	log(LOG_INFO,"Gateway tty: %s\n", serial_tty);

	close(pty_slave);
	configure_master_fd(pty_master);

	fds.events = POLLRDNORM;
	fds.fd = pty_master;
	if (daemonizeFlag) daemonize();
	/* we are ready, initialize the Gateway */
	gw->begin(RF24_PA_LEVEL_GW, RF24_CHANNEL, RF24_DATARATE, &write_msg_to_pty);

	/* Do the work until interrupted */
	while(running)
	{
		/* process radio msgs */
		gw->processRadioMessage();
		
		/* process serial port msgs */
		ret = poll(&fds, 1, 500);
		if (ret == -1)
		{
			log(LOG_ERR,"poll() error (%d) %s\n", errno, strerror(errno));
			sleep(10);
		}
		else if (ret == 0)
		{
			/* timeout */
			continue;
		}
		else
		{
			if (fds.revents & POLLRDNORM)
			{
				char buff[256];
				ssize_t size;

				fds.revents = 0;
				size = read(pty_master, buff, sizeof(buff));
				if (size < 0)
				{
					log(LOG_ERR,"read error (%d) %s\n", errno, strerror(errno));
					continue;
				}
				buff[size] = '\0';
				
				gw->parseAndSend(buff);
			} else {
				sleep(60);
			}
		}
	}


cleanup:
	log(LOG_INFO,"Exiting...\n");
	if (gw)
		delete(gw);
	(void) unlink(serial_tty);
	closeSyslog();
	return status;
}