PxTraceAssignBuffer()

Set a new trace buffer.

APPLIES TO

8.2.0

SYNOPSIS
PxError_t PxTraceAssignBuffer (PxAligned_t *trcbuffer, PxULong_t capacity, PxULong_t size);
ARGUMENTS






trcbuffer




The new trace buffer


















capacity




Number of trace buffer entries


















size




The size of a trace buffer entry in Byte

















ERROR CODES















PXERR_ACCESS_RIGHT




The calling task does not have the right to set the trace buffer








PXERR_PROT_PERMISSION




The calling task or kernel has no access to the passed buffer








PXERR_SERVICE_NOT_CONFIGURED




Service has not been configured into your PXROS








PXERR_ILLEGAL_ACCESS




No access permission for protection type









DESCRIPTION










PxTraceAssignBuffer assigns a circular buffer to the PXROS trace mechanism. The buffer size must be a multiple of the size of a PxTrace entry (actual 24 bytes).






















IMPLEMENTATION GUIDELINES
















Before call






    

  • 

    trcbuffer must be a pointer to a valid data area.
    

    • 

  • 

    capacity must be a plausible value given as a constant (V) or a variable (C).
    

    • 



















After call






    

  • 

    The function returns PXERR_NOERROR if the trace buffer could be assigned. Any other return value describes an error, which has to be interpreted (C).
    

    • 



















Best Practice






    

  • 

    No restrictions
    

    • 






























USAGE








#include "pxdef.h"

PxError_t Err = PxTraceAssignBuffer(trcbuffer, 2, PXV_ENTRY_SIZE);

if (Err != PXERR_NOERROR) {
    // Report error
}