libphidget-cvs-commits

[Jack S. <js...@us...>]

Update of /cvsroot/libphidget/libphidget/src/examples
In directory usw-pr-cvs1:/tmp/cvs-serv9040

Modified Files:
	phidget_c.c 
Log Message:
Added better error checks


Index: phidget_c.c
===================================================================
RCS file: /cvsroot/libphidget/libphidget/src/examples/phidget_c.c,v
retrieving revision 1.3
retrieving revision 1.4
diff -C2 -d -r1.3 -r1.4
*** phidget_c.c	12 Sep 2002 00:24:29 -0000	1.3
--- phidget_c.c	14 Sep 2002 01:25:16 -0000	1.4
***************
*** 17,82 ****
   * Simply goes thru all phidgets, looking for servos and then moving them slowly.
   */
! int
! main(int argn, char *argv[])
  {
!     int t, count;
!     struct phidget **phidgets;
  
!     printf("----------------------------------------\n");
!     printf("Phidgets Device driver test.\n\n\n");
  
!     // Initialize libphiget, here is where the devices are actually retrieved by the library
!     // We want the library to handle signals (passing it 1)
!     phidgetInit(1);
  
!     // Get an array of pointers to phidgets and a count of available phidgets
!     phidgets = phidgetGetPhidgets(&count);
  
!     printf("Device count:%d\n", count);
  
!     for (t = 0; t < count; t++) {
! 	unsigned char buffer[6];
! 	float k;
! 	struct phidget *dev = phidgetOpen(phidgets[t]);	// Open the phidget #t
  
! 	// Make sure we opened it successfully
! 	if (dev == NULL) {
! 	    printf("Can't open phidget:%s\n", phidgetErrorString(phidgetLastError()));
! 	    exit(0);
! 	}
! 	// Print out some information about this phidget
! 	printf
! 	    ("Phidget Name:%s  Vendor:0x0%x  Product:0x0%x  Serial#:%06d\n",
! 	     phidgetTypeName(phidgetType(dev)),
! 	     phidgetTypeVendorID(phidgetType(dev)), phidgetTypeProductID(phidgetType(dev)), phidgetSerial(dev));
  
! 	// Is it a servo controller
! 	if (phidgetTypeDeviceClass(phidgetType(dev)) == LP_SERVO_CONTROLLER) {
! 	    for (k = 0; k < 1; k += .1) {
! 		int i;
  
! 		// Move a single servo (will move servo 0 of a 1 or 4 servo controller)
! 		phidgetSingleServo(dev, k);
  
- 		// Wait a bit
- 		sleep(1);
  
! 		// Process any events that have occured, like attach/detach
! 		phidgetEvents();
! 	    }
! 	}
! 	// Close the phidget
! 	phidgetClose(dev);
  
! 	printf("Finished\n");
  
!     }
  
  
!     // done using all phidgets, free's phidget memory
!     phidgetDeinit();
  
-     printf("----------------------------------------\n");
  
!     return (0);
  }
--- 17,111 ----
   * Simply goes thru all phidgets, looking for servos and then moving them slowly.
   */
! int main (int argn, char *argv[])
  {
! 	int t, count;
! 	struct phidget **phidgets;
  
! 	printf ("----------------------------------------\n");
! 	printf ("Phidgets Device driver test.\n\n\n");
  
! 	// Initialize libphiget, here is where the devices are actually retrieved by the library
! 	// We want the library to handle signals (passing it 1)
! 	if (phidgetInit (1) != LPE_NONE)
! 	{
! 		printf("error - %s\n",phidgetErrorString(phidgetLastError()));
! 		return(1);
! 	}
  
! 	// Get an array of pointers to phidgets and a count of available phidgets
! 	phidgets = phidgetGetPhidgets (&count);
! 	if (phidgets==NULL)
! 	{
! 		printf("error - %s\n",phidgetErrorString(phidgetLastError()));
! 		return(2);
! 	}
  
! 	printf ("Device count:%d\n", count);
  
! 	for (t = 0; t < count; t++)
! 	{
! 		unsigned char buffer[6];
! 		float k;
! 		struct phidget *dev = phidgetOpen (phidgets[t]);	// Open the phidget #t
  
! 		// Make sure we opened it successfully
! 		if (dev==NULL)
! 		{
! 			printf("error - %s\n",phidgetErrorString(phidgetLastError()));
! 			return(3);
! 		}
  
! 		// Print out some information about this phidget
! 		printf ("Phidget Name:%s  Vendor:0x0%x  Product:0x0%x  Serial#:%06d\n",
! 			phidgetTypeName (phidgetType (dev)),
! 			phidgetTypeVendorID (phidgetType (dev)),
! 			phidgetTypeProductID (phidgetType (dev)), phidgetSerial (dev));
  
! 		if (phidgetLastError()!=LPE_NONE)
! 		{
! 			printf("error - %s\n",phidgetErrorString(phidgetLastError()));
! 			return(4);
! 		}
  
  
! 		// Is it a servo controller
! 		if (phidgetTypeDeviceClass (phidgetType (dev)) == LP_SERVO_CONTROLLER)
! 		{
! 			for (k = 0; k < 1; k += .1)
! 			{
! 				int i;
! 	
! 				// Move a single servo (will move servo 0 of a 1 or 4 servo controller)
! 				if (phidgetSingleServo (dev, k)!=LPE_NONE)
! 				{
! 					printf("error - %s\n",phidgetErrorString(phidgetLastError()));
! 					return(5);
! 				}
  
! 				// Wait a bit
! 				sleep (1);
  
! 				// Process any events that have occured, like attach/detach
! 				phidgetEvents ();
! 			}
! 		}
! 
! 		// Close the phidget
! 		if (phidgetClose (dev)!=LPE_NONE)
! 		{
! 			printf("error - %s\n",phidgetErrorString(phidgetLastError()));
! 			return(6);
! 		}
  
+ 		printf ("Finished\n");
  
! 	}
  
  
! 	// done using all phidgets, free's phidget memory
! 	phidgetDeinit ();
! 
! 	printf ("----------------------------------------\n");
! 
! 	return (0);
  }