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/* -----------------------------------------------------------------------------
*
* (c) The GHC Team, 1998-2004
*
* Things visible externally to the RTS
*
* -------------------------------------------------------------------------- */
#ifndef RTSEXTERNAL_H
#define RTSEXTERNAL_H
/* The RTS public interface. */
#include "RtsAPI.h"
/* The standard FFI interface */
#include "HsFFI.h"
/* -----------------------------------------------------------------------------
Functions exported by the RTS for use in Stg code
-------------------------------------------------------------------------- */
#if IN_STG_CODE
extern void newCAF(void*);
#else
extern void newCAF(StgClosure*);
#endif
/* ToDo: remove? */
extern I_ genSymZh(void);
extern I_ resetGenSymZh(void);
/* Alternate to raise(3) for threaded rts, for OpenBSD */
extern int genericRaise(int sig);
/* Concurrency/Exception PrimOps. */
extern int cmp_thread(StgPtr tso1, StgPtr tso2);
extern int rts_getThreadId(StgPtr tso);
extern int forkOS_createThread ( HsStablePtr entry );
extern StgInt forkProcess(HsStablePtr *entry);
extern StgBool rtsSupportsBoundThreads(void);
/* grimy low-level support functions defined in StgPrimFloat.c */
extern StgDouble __encodeDouble (I_ size, StgByteArray arr, I_ e);
extern StgDouble __int_encodeDouble (I_ j, I_ e);
extern StgFloat __encodeFloat (I_ size, StgByteArray arr, I_ e);
extern StgFloat __int_encodeFloat (I_ j, I_ e);
extern StgInt isDoubleNaN(StgDouble d);
extern StgInt isDoubleInfinite(StgDouble d);
extern StgInt isDoubleDenormalized(StgDouble d);
extern StgInt isDoubleNegativeZero(StgDouble d);
extern StgInt isFloatNaN(StgFloat f);
extern StgInt isFloatInfinite(StgFloat f);
extern StgInt isFloatDenormalized(StgFloat f);
extern StgInt isFloatNegativeZero(StgFloat f);
/* Suspending/resuming threads around foreign calls */
extern void * suspendThread ( StgRegTable * );
extern StgRegTable * resumeThread ( void * );
/* scheduler stuff */
extern void stg_scheduleThread (StgRegTable *reg, struct StgTSO_ *tso);
/* Creating and destroying an adjustor thunk */
extern void* createAdjustor(int cconv, StgStablePtr hptr, StgFunPtr wptr,
char *typeString);
extern void freeHaskellFunctionPtr(void* ptr);
#if defined(mingw32_HOST_OS)
extern int rts_InstallConsoleEvent ( int action, StgStablePtr *handler );
extern void rts_ConsoleHandlerDone ( int ev );
#else
extern int stg_sig_install (int, int, StgStablePtr *, void *);
#endif
#if !defined(mingw32_HOST_OS)
extern StgInt *signal_handlers;
#endif
extern void setIOManagerPipe (int fd);
extern void* stgMallocBytesRWX(int len);
/* -----------------------------------------------------------------------------
Storage manager stuff exported
-------------------------------------------------------------------------- */
/* Prototype for an evacuate-like function */
typedef void (*evac_fn)(StgClosure **);
extern void performGC(void);
extern void performMajorGC(void);
extern void performGCWithRoots(void (*get_roots)(evac_fn));
extern HsInt64 getAllocations( void );
extern void revertCAFs( void );
extern void dirty_MUT_VAR(StgRegTable *reg, StgClosure *p);
#endif /* RTSEXTERNAL_H */
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