Exemplo n.º 1
0
int mtev_json_object_to_fd(int fd, struct mtev_json_object *obj)
{
  const char *mtev_json_str;
  int ret;
  unsigned int wpos, wsize;

  if(!obj) {
    MC_ERROR("mtev_json_object_to_fd: object is null%s\n", "");
    return -1;
  }

  if(!(mtev_json_str = mtev_json_object_to_json_string(obj))) {
    return -1;
  }

  wsize = (unsigned int)(strlen(mtev_json_str) & UINT_MAX); /* CAW: probably unnecessary, but the most 64bit safe */
  wpos = 0;
  while(wpos < wsize) {
    if((ret = write(fd, mtev_json_str + wpos, wsize-wpos)) < 0) {
      MC_ERROR("mtev_json_object_to_fd: error writing fd %d: %s\n",
	     fd, strerror(errno));
      return -1;
    }

    /* because of the above check for ret < 0, we can safely cast and add */
    wpos += (unsigned int)ret;
  }

  return 0;

}
Exemplo n.º 2
0
struct json_object* json_object_from_file(char *filename)
{
  struct printbuf *pb;
  struct json_object *obj;
  char buf[JSON_FILE_BUF_SIZE];
  int fd, ret;

  if((fd = open(filename, O_RDONLY)) < 0) {
    MC_ERROR("json_object_from_file: error reading file %s: %s\n",
	     filename, strerror(errno));
    return error_ptr(-1);
  }
  if(!(pb = printbuf_new())) {
    MC_ERROR("json_object_from_file: printbuf_new failed\n");
    return error_ptr(-1);
  }
  while((ret = read(fd, buf, JSON_FILE_BUF_SIZE)) > 0) {
    printbuf_memappend(pb, buf, ret);
  }
  close(fd);
  if(ret < 0) {
    MC_ABORT("json_object_from_file: error reading file %s: %s\n",
	     filename, strerror(errno));
    printbuf_free(pb);
    return error_ptr(-1);
  }
  obj = json_tokener_parse(pb->buf);
  printbuf_free(pb);
  return obj;
}
Exemplo n.º 3
0
struct json_object* json_object_from_file(const char *filename)
{
  struct printbuf *pb;
  struct json_object *obj;
  char buf[JSON_FILE_BUF_SIZE];
  int ret;
  FILE * fd;

  if((fd = fopen(filename, "R")) < 0) {
    MC_ERROR("json_object_from_file: error reading file %s: %s\n",
	     filename, strerror(errno));
    return (struct json_object*)error_ptr(-1);
  }
  if(!(pb = printbuf_new())) {
    fclose(fd);
    MC_ERROR("json_object_from_file: printbuf_new failed\n");
    return (struct json_object*)error_ptr(-1);
  }
  while((ret = fread(buf,JSON_FILE_BUF_SIZE, sizeof(char), fd)) > 0) {
  //while((ret = fread(fd, buf, JSON_FILE_BUF_SIZE)) > 0) {
    printbuf_memappend(pb, buf, ret);
  }
  fclose(fd);
  if(ret < 0) {
    MC_ABORT("json_object_from_file: error reading file %s: %s\n",
	     filename, strerror(errno));
    printbuf_free(pb);
    return (struct json_object*)error_ptr(-1);
  }
  obj = json_tokener_parse(pb->buf);
  printbuf_free(pb);
  return obj;
}
Exemplo n.º 4
0
const char *json_type_to_name(enum json_type o_type)
{
	if (o_type < 0 || o_type >= NELEM(json_type_name))
	{
		MC_ERROR("json_type_to_name: type %d is out of range [0,%d]\n", o_type, NELEM(json_type_name));
		return NULL;
	}
	return json_type_name[o_type];
}
Exemplo n.º 5
0
void vrpn_3DMicroscribe::report_changes(vrpn_uint32 class_of_service)
{
	vrpn_Button::timestamp = timestamp;
	vrpn_Tracker::timestamp = timestamp;

	vrpn_Button::report_changes();
	if (d_connection) {
		char	msgbuf[1000];
		int	len = vrpn_Tracker::encode_to(msgbuf);
		if (d_connection->pack_message(len, timestamp,
			position_m_id, d_sender_id, msgbuf,
			vrpn_CONNECTION_LOW_LATENCY)) {
				MC_ERROR("Tracker: cannot write message: tossing\n");
			}
	} else {
		MC_ERROR("Tracker: No valid connection\n");
	}
}
Exemplo n.º 6
0
int json_object_to_file(char *filename, struct json_object *obj)
{
  const char *json_str;
  int ret;
  unsigned int wpos, wsize;
  FILE * fd;

  if(!obj) {
    MC_ERROR("json_object_to_file: object is null\n");
    return -1;
  }

  if((fd = fopen(filename, "W")) < 0) {
    MC_ERROR("json_object_to_file: error opening file %s: %s\n",
	     filename, strerror(errno));
    return -1;
  }

  if(!(json_str = json_object_to_json_string(obj))) {
    fclose(fd);
    return -1;
  }

  wsize = (unsigned int)(strlen(json_str) & UINT_MAX); /* CAW: probably unnecessary, but the most 64bit safe */
  wpos = 0;
  while(wpos < wsize) {
    if((ret = fwrite(json_str + wpos, wsize-wpos, sizeof(char), fd)) < 0) {
//    if((ret = write(fd, json_str + wpos, wsize-wpos)) < 0) {
      fclose(fd);
      MC_ERROR("json_object_to_file: error writing file %s: %s\n",
	     filename, strerror(errno));
      return -1;
    }

	/* because of the above check for ret < 0, we can safely cast and add */
    wpos += (unsigned int)ret;
  }

  fclose(fd);
  return 0;
}
Exemplo n.º 7
0
// This routine will reset the 3DMicroscribe, zeroing the Origin position,
// mode.
int	vrpn_3DMicroscribe::reset(void) 
{
#ifdef VRPN_USE_MICROSCRIBE
	int iResult;
	// ARM_FULL: ArmDll32 calculates and updates the Cartesian position and orientation of the stylus tip.
	iResult = ArmSetUpdate(ARM_FULL);
	
	if(iResult != ARM_SUCCESS) 
	{ 
		//error setting the update type, disconnect and end the thread
		MC_ERROR( "Unable to set the update type for the MicroScribe." );
		return -1;
	}

	//use mm instead of inches
	ArmSetLengthUnits(ARM_MM);
	//use radians instead of degrees
	//ArmSetAngleUnits(ARM_RADIANS);

	//get the position of the tip
	length_3D tipPosition;
	angle_3D tipVector;

	iResult = ArmGetTipPosition(&tipPosition); //retrieves the current stylus tip position in Cartesian coordinates
	iResult = ArmGetTipOrientationUnitVector(&tipVector); //retrieves the current stylus tip's unit vector orientation

	if(iResult == ARM_NOT_CONNECTED)
	{ 
		//error connecting
		MC_ERROR( "MicroScribe connection lost!" );
		return -1;
	}
	
#endif
	// We're now waiting for a response from the box
	status = STATUS_SYNCING;

	vrpn_gettimeofday(&timestamp, NULL);	// Set watchdog now
	return 0;
}
Exemplo n.º 8
0
int json_object_to_file_ext(const char *filename, struct json_object *obj, int flags)
{
  const char *json_str;
  int fd, ret;
  unsigned int wpos, wsize;

  if(!obj) {
    MC_ERROR("json_object_to_file: object is null\n");
    return -1;
  }

  if((fd = open(filename, O_WRONLY | O_TRUNC | O_CREAT, 0644)) < 0) {
    MC_ERROR("json_object_to_file: error opening file %s: %s\n",
	     filename, strerror(errno));
    return -1;
  }

  if(!(json_str = json_object_to_json_string_ext(obj,flags))) {
    close(fd);
    return -1;
  }

  wsize = (unsigned int)(strlen(json_str) & UINT_MAX); /* CAW: probably unnecessary, but the most 64bit safe */
  wpos = 0;
  while(wpos < wsize) {
    if((ret = write(fd, json_str + wpos, wsize-wpos)) < 0) {
      close(fd);
      MC_ERROR("json_object_to_file: error writing file %s: %s\n",
	     filename, strerror(errno));
      return -1;
    }

	/* because of the above check for ret < 0, we can safely cast and add */
    wpos += (unsigned int)ret;
  }

  close(fd);
  return 0;
}
Exemplo n.º 9
0
struct json_object* json_object_from_file(const char *filename)
{
  struct json_object *obj;
  int fd;

  if((fd = open(filename, O_RDONLY)) < 0) {
    MC_ERROR("json_object_from_file: error opening file %s: %s\n",
	     filename, strerror(errno));
    return NULL;
  }
  obj = json_object_from_fd(fd);
  close(fd);
  return obj;
}
Exemplo n.º 10
0
/*
 * Create a JSON object from already opened file descriptor.
 *
 * This function can be helpful, when you opened the file already,
 * e.g. when you have a temp file.
 * Note, that the fd must be readable at the actual position, i.e.
 * use lseek(fd, 0, SEEK_SET) before.
 */
struct json_object* json_object_from_fd(int fd)
{
  struct printbuf *pb;
  struct json_object *obj;
  char buf[JSON_FILE_BUF_SIZE];
  int ret;

  if(!(pb = printbuf_new())) {
    MC_ERROR("json_object_from_file: printbuf_new failed\n");
    return NULL;
  }
  while((ret = read(fd, buf, JSON_FILE_BUF_SIZE)) > 0) {
    printbuf_memappend(pb, buf, ret);
  }
  if(ret < 0) {
    MC_ERROR("json_object_from_fd: error reading fd %d: %s\n", fd, strerror(errno));
    printbuf_free(pb);
    return NULL;
  }
  obj = json_tokener_parse(pb->buf);
  printbuf_free(pb);
  return obj;
}
Exemplo n.º 11
0
struct mtev_json_object* mtev_json_object_from_file(char *filename)
{
  struct mtev_json_object *obj;
  int fd;

  if((fd = open(filename, O_RDONLY)) < 0) {
    MC_ERROR("mtev_json_object_from_file: error reading file %s: %s\n",
	     filename, strerror(errno));
    return (struct mtev_json_object*)error_ptr(-1);
  }
  obj = mtev_json_object_from_fd(fd);
  close(fd);
  return obj;
}
Exemplo n.º 12
0
int mtev_json_object_to_file(char *filename, struct mtev_json_object *obj)
{
  int fd, ret;

  if((fd = open(filename, O_WRONLY | O_TRUNC | O_CREAT, 0644)) < 0) {
    MC_ERROR("mtev_json_object_to_file: error opening file %s: %s\n",
	     filename, strerror(errno));
    return -1;
  }

  ret = mtev_json_object_to_fd(fd, obj);
  close(fd);
  return ret;
}
Exemplo n.º 13
0
int vrpn_3DMicroscribe::get_report(void)
{
#ifdef VRPN_USE_MICROSCRIBE
	length_3D tipPosition;
	angle_3D tipOri;
	DWORD buts;
	int iResult = ArmGetTipPosition(&tipPosition); //retrieves the current stylus tip position in Cartesian coordinates
	iResult = ArmGetTipOrientation(&tipOri); //retrieves the current stylus tip's unit vector orientation
	iResult = ArmGetButtonsState(&buts);
	if(iResult == ARM_NOT_CONNECTED)
	{ 
		//error connecting
		MC_ERROR( "MicroScribe connection lost!" );
		return 0;
	}

	//set the position, considering the scale, offset and origin matrix
	pos[0] = (tipPosition.y * m_Scale + m_OffSet[0])* MM_TO_METERS ;
	pos[1] = (tipPosition.z * m_Scale + m_OffSet[1])* MM_TO_METERS;
	pos[2] = (tipPosition.x * m_Scale + m_OffSet[2])* MM_TO_METERS;
	//vPosition = m_Matrix * vPosition + m_vPlaneOffset; extending the microscribe onto a plane 

	//set the orientation, considering the origin matrix
	float ori[3]={tipOri.y, tipOri.z, tipOri.x};
	ConvertOriToQuat(ori);

	
    status = STATUS_READING;        // ready to process event packet
    vrpn_gettimeofday(&timestamp, NULL); // set timestamp of this event
  
    buttons[0]  = ((buts & 0x02) != 0); // button 1
    buttons[1]  = ((buts & 0x01) != 0); // button 2

#endif

  report_changes();        // Report updates to VRPN
  return 0;
}
Exemplo n.º 14
0
struct mtev_json_object *mtev_json_object_from_fd(int fd)
{
  struct jl_printbuf *pb;
  struct mtev_json_object *obj;
  char buf[JSON_FILE_BUF_SIZE];
  int ret;

  if(!(pb = jl_printbuf_new())) {
    MC_ERROR("mtev_json_object_from_fd: jl_printbuf_new failed%s\n", "");
    return (struct mtev_json_object*)error_ptr(-1);
  }
  while((ret = read(fd, buf, JSON_FILE_BUF_SIZE)) > 0) {
    jl_printbuf_memappend(pb, buf, ret);
  }
  if(ret < 0) {
    MC_ABORT("mtev_json_object_from_fd: error reading fd %d: %s\n",
	     fd, strerror(errno));
    jl_printbuf_free(pb);
    return (struct mtev_json_object*)error_ptr(-1);
  }
  obj = mtev_json_tokener_parse(pb->buf);
  jl_printbuf_free(pb);
  return obj;
}
Exemplo n.º 15
0
// This creates a vrpn_3DMicroscribe and sets it to reset mode.
vrpn_3DMicroscribe::vrpn_3DMicroscribe (const char * name, vrpn_Connection * c,
					const char * Port, long int BaudRate,
					float OffsetX/* = 0.0f*/,
					float OffsetY/* = 0.0f*/,
					float OffsetZ/* = 0.0f*/,
					float Scale/*=1.0f*/):
		vrpn_Tracker(name, c),
		vrpn_Button_Filter(name, c),
		_numbuttons(2)
{
	// Set the parameters in the parent classes
	vrpn_Button::num_buttons = _numbuttons;
	
	if(!strcmp(Port, "COM1") )
		m_PortNumber=1;
	else if(!strcmp(Port, "COM2") )
		m_PortNumber=2;
	else if(!strcmp(Port, "COM3") )
		m_PortNumber=3;
	else if(!strcmp(Port, "COM4") )
		m_PortNumber=4;
	m_BaudRate=BaudRate;
	m_OffSet[0]=OffsetX; m_OffSet[1]=OffsetY; m_OffSet[2]=OffsetZ;
	m_Scale=Scale;

	// Set the status of the buttons and analogs to 0 to start
	clear_values();

#ifdef VRPN_USE_MICROSCRIBE
	int iResult;
	iResult=ArmStart(NULL);
	if(ARM_SUCCESS != iResult)
	{
		//error starting the MicroScribe drivers
		MC_ERROR( "Unable to start MicroScribe ArmDll32." );
		return;
	}

	//don't use error handlers
	iResult = ArmSetErrorHandlerFunction(NO_HCI_HANDLER, NULL);
	iResult = ArmSetErrorHandlerFunction(BAD_PORT_HANDLER, NULL);
	iResult = ArmSetErrorHandlerFunction(CANT_OPEN_HANDLER, NULL);
	iResult = ArmSetErrorHandlerFunction(CANT_BEGIN_HANDLER, NULL);

	//connect to the correct port
	switch(m_PortNumber)
	{
	case 1:
		iResult = ArmConnect(1, m_BaudRate);
		break;
	case 2:
		iResult = ArmConnect(2, m_BaudRate);
		break;
	case 3:
		iResult = ArmConnect(3, m_BaudRate);
		break;
	case 4:
		iResult = ArmConnect(4, m_BaudRate);
		break;
	default:
		iResult = ArmConnect(0, 0); //try all available ports and baud rates
		break;
	}

	if(ARM_SUCCESS != iResult)
	{ 
		//error connecting, end the thread
		ArmEnd();
		MC_ERROR( "Unable to connect to the MicroScribe." );
		return;
	}

#endif
	// Set the mode to reset
	status = STATUS_RESETTING;
}