Findroute (SwitchExecutive 3.00)

Hello

I've updated SwitchExecutive v2.1 v3.00.

I use Findroute() to get the path between 2 points of termination.

I don't want to use the desktop mode but if the user connects 2 times the same points I don't return an error:

Join the 2 Point Point1

Connect the Point1 at Point 2 (same connection, no errors, no reference incremented)

Disconnect the Point 1 and Point 2 (the 2 points are really disconnected)

I use Findroute() to see if the path already exists.

If the path already exists, then return only a warning, if not plug the 2 points.

It worked with SE 2.1 but it doesn't work with SE 3.0:

If I want to connect 2 points via a bus using the AutoComplete feature, Findroute returns the path already exists when I connect the 2 time points.

Directions: [MATRIX_1 / x 213-> MATRIX_1 /-> MATRIX_1 y1 / x 180]

If I want to connect 2 points manually (and a point connects directly to the bus), Findroute returns the path is available when I
connect the dots 2 times (she should return the path already exists).

Directions: [MATRIX_1 / x 213-> MATRIX_1/y1]

Why is there a difference in behavior between the 2 cases with SE 3.0? (He worked with SE 2.1).

Bruno

Thank you John and Sylvie.

I tested your patch and it works (sorry for the delay).

Just a clarification:

RouteSpec buffers dynamically allocated buffers (NISEBuffer *). The FindRoute() function must be called twice.

The first function call returns the value of routeSpecSize and the routeSpec is NULL.

Then dynamically allocate the routeSpec using routeSpecSize.

The second function call returns the routeSpec.

The FindRouteWorkaround must be called twice too.

I modified your function to dynamically allocate buffers.

int FindRouteWorkaround)
                            NISESession         
                            NISEConstString     
                            NISEConstString     
                            NISEBuffer *.        
                            NISEInt32 *.         
                            NISEInt32 *         routeCapability)
{
    NISEStatus      errorStatus            = 0;
    NISEInt32       routeSpecSize1         = 0;
    NISEInt32       routeSpecSize2         = 0;
    NISEInt32       routeCapability1       = 0;
    NISEInt32       routeCapability2       = 0;
    NISEBuffer *     routeSpec1             = NULL;
    NISEBuffer *     routeSpec2             = NULL;
If (routeSpec! = NULL)
    {
        routeSpec1 = calloc (* routeSpecSize, sizeof (NISEBuffer));
        routeSpec2 = calloc (* routeSpecSize, sizeof (NISEBuffer));
routeSpecSize1 = * routeSpecSize;
        routeSpecSize2 = * routeSpecSize;
    }
errorStatus = niSE_FindRoute (niSEHandle, chan1, chan2, routeSpec1, & routeSpecSize1, & routeCapability1);
    If (errorStatus! = 0)
    {       
        Return errorStatus;    
    }
errorStatus = niSE_FindRoute (niSEHandle, chan2, chan1, routeSpec2, & routeSpecSize2, & routeCapability2);   
    If (errorStatus! = 0)  
    {       
        Return errorStatus;    
    }

    {       
        If (routeSpec! = NULL)
            strcpy (routeSpec, routeSpec1);     
        * routeSpecSize = routeSpecSize1;      
        * routeCapability = routeCapability1;  
    
    Else if (routeCapability1 == 2)    
    {       
        If (routeSpec! = NULL)
            strcpy (routeSpec, routeSpec1);     
        * routeSpecSize = routeSpecSize1;      
        * routeCapability = routeCapability1;  
    }
    Else if (routeCapability2 == 2)    
    {       
        If (routeSpec! = NULL)
            strcpy (routeSpec, routeSpec2);     
        * routeSpecSize = routeSpecSize2;
        * routeCapability = routeCapability2;  
    }
If (routeSpec1)
    {
        free (routeSpec1);
        routeSpec1 = NULL;
    }
If (routeSpec2)
    {
        free (routeSpec2);
        routeSpec2 = NULL;
    }
return 0;
}

Bruno

Tags: NI Products

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