Update of /cvsroot/libphidget/libphidget/src/examples
In directory usw-pr-cvs1:/tmp/cvs-serv32501
Modified Files:
phidget_c.c servo_example.cc
Log Message:
Added better error checking to phidget_c.c (ignores warnings, or positive errors). Also added example4 to servo_example which shows how to derive a CServoController that can detect attach/detach events.
Index: phidget_c.c
===================================================================
RCS file: /cvsroot/libphidget/libphidget/src/examples/phidget_c.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** phidget_c.c 14 Sep 2002 01:25:16 -0000 1.4
--- phidget_c.c 16 Sep 2002 06:45:42 -0000 1.5
***************
*** 62,66 ****
phidgetTypeProductID (phidgetType (dev)), phidgetSerial (dev));
! if (phidgetLastError()!=LPE_NONE)
{
printf("error - %s\n",phidgetErrorString(phidgetLastError()));
--- 62,66 ----
phidgetTypeProductID (phidgetType (dev)), phidgetSerial (dev));
! if (phidgetLastError()<0)
{
printf("error - %s\n",phidgetErrorString(phidgetLastError()));
***************
*** 77,81 ****
// 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()));
--- 77,81 ----
// Move a single servo (will move servo 0 of a 1 or 4 servo controller)
! if (phidgetSingleServo (dev, k)<0)
{
printf("error - %s\n",phidgetErrorString(phidgetLastError()));
***************
*** 92,96 ****
// Close the phidget
! if (phidgetClose (dev)!=LPE_NONE)
{
printf("error - %s\n",phidgetErrorString(phidgetLastError()));
--- 92,96 ----
// Close the phidget
! if (phidgetClose (dev)<0)
{
printf("error - %s\n",phidgetErrorString(phidgetLastError()));
Index: servo_example.cc
===================================================================
RCS file: /cvsroot/libphidget/libphidget/src/examples/servo_example.cc,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** servo_example.cc 12 Sep 2002 03:19:48 -0000 1.4
--- servo_example.cc 16 Sep 2002 06:45:42 -0000 1.5
***************
*** 130,133 ****
--- 130,192 ----
};
+ /*
+ * A derived class that is a servo controller
+ */
+ void example4()
+ {
+ class CMyServoController : public CServoController
+ {
+ public:
+ CMyServoController(const CUID &uid) :
+ CServoController(uid)
+ {
+ printf(" CMyServoController: constructed\n");
+ }
+ ~CMyServoController()
+ {
+ printf(" CMyServoController: destructor\n");
+ }
+ virtual void onAttach()
+ {
+ CServoController::onAttach();
+ printf(" CMyServoController: attach\n");
+ }
+ virtual void onDetach()
+ {
+ CServoController::onDetach();
+ printf(" CMyServoController: deattach\n");
+ }
+ };
+
+ printf("example 4 - Bit more complex, construct our own derived servo controller\n");
+
+ // We have this brace to make sure all the stack objects get destroyed before we call cleanup,
+ // cleanup will throw an exception when it is called and objects are still out in the "world"
+ {
+ printf(" Request servo #0 from the servo controller\n");
+ CMyServoController servoController(servoPhidgetID);
+
+ printf(" Name:%s\n",servoController.name());
+ printf(" Servo Count:%d\n",servoController.servoCount());
+
+ printf(" Randomly moving all servos.\n");
+ for (int t=0;t<servoController.servoCount();t++)
+ {
+ servoController.servo(t,true)->position((rand()%1000)/1000.0);
+ }
+
+ printf(" Wait for them to move. this will delay for 10 seconds, good time to attach/detach it.\n");
+ time_t start=time(NULL);
+
+ while ((time(NULL)-start)<10)
+ {
+ CPhidgetManager::getInstance()->checkForEvents();
+ }
+ }
+
+ cleanup();
+ };
+
+
/**
***************
*** 152,155 ****
--- 211,215 ----
example2();
example3();
+ example4();
}
catch(const exception &e)
|
