_PxHndcall()

PXROS-HR handler call.

APPLIES TO

1.0.0

SYNOPSIS
PxArg_t _PxHndcall (handler, task, varsize, parms...);
ARGUMENTS






handler




Function to be called in supervisor mode


















task




Calling task


















varsize




Total size of the arguments in bytes


















parms…​




Arguments for handler function

















DESCRIPTION










_PxHndcall calls the passed function handler with its arguments parms…​ in supervisor mode. Since the function is executed in the context of the calling task using the task stack, the function can only access data of the task context.



























USAGE








#include "pxdef.h"

#define UNUSED_TID 0 // TASK ID - argument not used
#define UNUSED_VARSIZE 0 // VARIABLE SIZE - argument not used

int HandlerFunc(va_list ap) {
 int arg1 = va_arg(ap, int);
 return arg1;
}

PxArg_t retval = _PxHndcall(HandlerFunc, UNUSED_TID, UNUSED_VARSIZE, arg1);