| PMRELEASERECEIVEBUFFER(3) | PMRELEASERECEIVEBUFFER(3) | 
int pmReleaseReceiveBuffer(pmContext *pmc);
pmContext * | 
  pmc | 
  pmContext object | 
pmReleaseReceiveBuffer() releases a message buffer previously
received by pmReceive().pmc is of type PM_COMPOSITE then the context is
unlocked.
PM_SUCCESS | 
  Success | 
EIO | 
  Called before a message is received |