RTEMS 4.7.99.2 On-Line Library

Fixed Block Manager rel_blf - Release Fixed-Size Memory Block

RTEMS ITRON 3.0 API User's Guide

10.4.6: rel_blf - Release Fixed-Size Memory Block

CALLING SEQUENCE:

ER rel_blf(
  ID mpfid,
  VP blf
);

STATUS CODES:

E_OK - Normal Completion

E_ID - Invalid ID number (mpfid was invalid or could not be used)

E_NOEXS - Object does not exist (the memorypool specified by mpfid does not exist)

E_OACV - Object access violation (A mpfid less than -4 was specified from a user task. This is implementation dependent.)

E_PAR - Parameter error (blf is invalid or an attempt was made to return the memory block to the wrong memorypool)

DESCRIPTION:

This system call releases the memory block specified by blf and returns it to the fixed-size memorypool specified by mpfid. Executing rel_blf allows memory to be allocated to the next task waiting for memory allocation from the memorypool given by mpfid, thus releasing that task from its WAIT state.

NOTES:

The fixed-size memorypool to which the memory block is returned must be the same memorypool from which it was originally allocated. An E_PAR error will result if an attempt is made to return a memory block to another memorypool than that from which it was originally allocated.

RTEMS ITRON 3.0 API User's Guide