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/* -----------------------------------------------------------------------------
*
* (c) The GHC Team, 2001
* Author: Sungwoo Park
*
* Retainer profiling interface.
*
* ---------------------------------------------------------------------------*/
#ifndef RETAINERPROFILE_H
#define RETAINERPROFILE_H
#ifdef PROFILING
#include "RetainerSet.h"
#include "BeginPrivate.h"
void initRetainerProfiling ( void );
void endRetainerProfiling ( void );
void retainerProfile ( void );
void resetStaticObjectForRetainerProfiling( StgClosure *static_objects );
// flip is either 1 or 0, changed at the beginning of retainerProfile()
// It is used to tell whether a retainer set has been touched so far
// during this pass.
extern StgWord flip;
// extract the retainer set field from c
#define RSET(c) ((c)->header.prof.hp.rs)
#define isRetainerSetFieldValid(c) \
((((StgWord)(c)->header.prof.hp.rs & 1) ^ flip) == 0)
static inline RetainerSet *
retainerSetOf( StgClosure *c )
{
ASSERT( isRetainerSetFieldValid(c) );
// StgWord has the same size as pointers, so the following type
// casting is okay.
return (RetainerSet *)((StgWord)RSET(c) ^ flip);
}
// Used by Storage.c:memInventory()
#ifdef DEBUG
extern W_ retainerStackBlocks ( void );
#endif
#include "EndPrivate.h"
#endif /* PROFILING */
#endif /* RETAINERPROFILE_H */
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