PxMcRelease()

Release a memory class object.

APPLIES TO

8.2.0

SYNOPSIS
PxMc_t PxMcRelease (PxMc_t Mc);
ARGUMENTS






Mc




Memory class object to be released

















RETURN VALUES






    

  • 

    Invalid memory class handle on success
    

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  • 

    Mc on failure
    

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ERROR CODES















PXERR_MC_ILLMC




Mc is not a valid memory class object








PXERR_MC_NOTEMPTY




Memory class delete failed: not empty








PXERR_OPOOL_ILLOPOOL




The object pool is not valid








PXERR_GLOBAL_ILLEGAL_CORE




The requested memory class is not on the same core








PXERR_TASK_ILLTASK




The task is not a valid task object








PXERR_INTERNAL_INCONSISTENCY




Inconsistency of internal structures









DESCRIPTION










PxMcRelease releases the memory class handle Mc by converting it into a generic object and releasing this object.






















IMPLEMENTATION GUIDELINES
















Before call






    

  • 

    Mc must be a valid PXROS-HR memory class created with a PxMcRequest call (V). The validity of Mc may also be checked by the PxMcIsValid macro (F). The memory class must be created on the same core as the caller runs on. The creator core id can be read with the macro PxMcCoreId and the own core id with PxGetCoreId (C).
    

    • 



















After call






    

  • 

    PxMcRelease returns the memory class object to the object pool it has been taken from. On success PxMcRelease returns the invalidated delay object. This may be checked with one of the following macros:
    

    

      

    • 

      PxMcIdIsValid() must be false.
      

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    • 

      PxMcIdGet() must be _PXIllegalObjId.
      

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    • 

      PxMcIdError() must be PXERR_NOERROR otherwise the returned error code has to be interpreted (C).
      

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Best Practice






    

  • 

    After PxMcRelease, the given memory class object Mc is no longer valid and may never be used as memory class object!
    

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SEE ALSO











USAGE








#include "pxdef.h"

PxMc_t Mc = PxMcRelease(Mc);

if (PxMsgIdIsValid (Mc)) {
    // Report error
}