X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fincludes%2FRtsAPI.h;h=1b6678905997cade16147a5dca9ac737c305eec6;hb=28a464a75e14cece5db40f2765a29348273ff2d2;hp=348e57a510f903326ed69dd45bfe250edb9e653f;hpb=3e7902302adba05d926ff9210026e19cd0b5a106;p=ghc-hetmet.git diff --git a/ghc/includes/RtsAPI.h b/ghc/includes/RtsAPI.h index 348e57a..1b66789 100644 --- a/ghc/includes/RtsAPI.h +++ b/ghc/includes/RtsAPI.h @@ -1,7 +1,6 @@ /* ---------------------------------------------------------------------------- - * $Id: RtsAPI.h,v 1.17 2000/08/29 13:34:21 qrczak Exp $ * - * (c) The GHC Team, 1998-1999 + * (c) The GHC Team, 1998-2004 * * API for invoking Haskell functions via the RTS * @@ -10,6 +9,12 @@ #ifndef RTSAPI_H #define RTSAPI_H +#ifdef __cplusplus +extern "C" { +#endif + +#include "HsFFI.h" + /* * Running the scheduler */ @@ -17,96 +22,134 @@ typedef enum { NoStatus, /* not finished yet */ Success, /* completed successfully */ Killed, /* uncaught exception */ - Interrupted, /* stopped in response to a call to interruptStgRts */ - Deadlock /* no threads to run, but main thread hasn't finished */ + Interrupted /* stopped in response to a call to interruptStgRts */ } SchedulerStatus; typedef StgClosure *HaskellObj; - -/* Make this compilable with Visual C++. We can't just use StgInt64 here, - * because this file should be compilable without reference to the rest - * of the RTS machinery. These are absolutely non-standard types, but - * I don't know what alternatives are safe if we don't #include anything - * here. +/* + * An abstract type representing the token returned by rts_lock() and + * used when allocating objects and threads in the RTS. */ -#if defined(__MSVC__) -typedef __int64 HsInt64_; -typedef unsigned __int64 HsWord64_; -#else -typedef long long HsInt64_; -typedef unsigned long long HsWord64_; -#endif +typedef struct Capability_ Capability; /* ---------------------------------------------------------------------------- Starting up and shutting down the Haskell RTS. ------------------------------------------------------------------------- */ -extern void startupHaskell ( int argc, char *argv[], void *init_root ); +extern void startupHaskell ( int argc, char *argv[], + void (*init_root)(void) ); extern void shutdownHaskell ( void ); extern void shutdownHaskellAndExit ( int exitCode ); -extern void setProgArgv ( int argc, char *argv[] ); extern void getProgArgv ( int *argc, char **argv[] ); +extern void setProgArgv ( int argc, char *argv[] ); + + +/* ---------------------------------------------------------------------------- + Locking. + + You have to surround all access to the RtsAPI with these calls. + ------------------------------------------------------------------------- */ + +// acquires a token which may be used to create new objects and +// evaluate them. +Capability *rts_lock (void); + +// releases the token acquired with rts_lock(). +void rts_unlock (Capability *token); /* ---------------------------------------------------------------------------- Building Haskell objects from C datatypes. ------------------------------------------------------------------------- */ -HaskellObj rts_mkChar ( unsigned int c ); -HaskellObj rts_mkInt ( int i ); -HaskellObj rts_mkInt8 ( int i ); -HaskellObj rts_mkInt16 ( int i ); -HaskellObj rts_mkInt32 ( int i ); -HaskellObj rts_mkWord ( unsigned int w ); -HaskellObj rts_mkWord8 ( unsigned int w ); -HaskellObj rts_mkWord16 ( unsigned int w ); -HaskellObj rts_mkWord32 ( unsigned int w ); -HaskellObj rts_mkInt64 ( HsInt64_ i ); -HaskellObj rts_mkWord64 ( HsWord64_ w ); -HaskellObj rts_mkFloat ( float f ); -HaskellObj rts_mkDouble ( double f ); -HaskellObj rts_mkStablePtr ( StgStablePtr s ); -HaskellObj rts_mkAddr ( void *a ); -HaskellObj rts_mkBool ( int b ); -HaskellObj rts_mkString ( char *s ); - -HaskellObj rts_apply ( HaskellObj, HaskellObj ); +HaskellObj rts_mkChar ( Capability *, HsChar c ); +HaskellObj rts_mkInt ( Capability *, HsInt i ); +HaskellObj rts_mkInt8 ( Capability *, HsInt8 i ); +HaskellObj rts_mkInt16 ( Capability *, HsInt16 i ); +HaskellObj rts_mkInt32 ( Capability *, HsInt32 i ); +HaskellObj rts_mkInt64 ( Capability *, HsInt64 i ); +HaskellObj rts_mkWord ( Capability *, HsWord w ); +HaskellObj rts_mkWord8 ( Capability *, HsWord8 w ); +HaskellObj rts_mkWord16 ( Capability *, HsWord16 w ); +HaskellObj rts_mkWord32 ( Capability *, HsWord32 w ); +HaskellObj rts_mkWord64 ( Capability *, HsWord64 w ); +HaskellObj rts_mkPtr ( Capability *, HsPtr a ); +HaskellObj rts_mkFunPtr ( Capability *, HsFunPtr a ); +HaskellObj rts_mkFloat ( Capability *, HsFloat f ); +HaskellObj rts_mkDouble ( Capability *, HsDouble f ); +HaskellObj rts_mkStablePtr ( Capability *, HsStablePtr s ); +HaskellObj rts_mkBool ( Capability *, HsBool b ); +HaskellObj rts_mkString ( Capability *, char *s ); + +HaskellObj rts_apply ( Capability *, HaskellObj, HaskellObj ); /* ---------------------------------------------------------------------------- Deconstructing Haskell objects ------------------------------------------------------------------------- */ -unsigned int rts_getChar ( HaskellObj ); -int rts_getInt ( HaskellObj ); -int rts_getInt32 ( HaskellObj ); -unsigned int rts_getWord ( HaskellObj ); -unsigned int rts_getWord32 ( HaskellObj ); -float rts_getFloat ( HaskellObj ); -double rts_getDouble ( HaskellObj ); -StgStablePtr rts_getStablePtr ( HaskellObj ); -void * rts_getAddr ( HaskellObj ); -int rts_getBool ( HaskellObj ); +HsChar rts_getChar ( HaskellObj ); +HsInt rts_getInt ( HaskellObj ); +HsInt8 rts_getInt8 ( HaskellObj ); +HsInt16 rts_getInt16 ( HaskellObj ); +HsInt32 rts_getInt32 ( HaskellObj ); +HsInt64 rts_getInt64 ( HaskellObj ); +HsWord rts_getWord ( HaskellObj ); +HsWord8 rts_getWord8 ( HaskellObj ); +HsWord16 rts_getWord16 ( HaskellObj ); +HsWord32 rts_getWord32 ( HaskellObj ); +HsWord64 rts_getWord64 ( HaskellObj ); +HsPtr rts_getPtr ( HaskellObj ); +HsFunPtr rts_getFunPtr ( HaskellObj ); +HsFloat rts_getFloat ( HaskellObj ); +HsDouble rts_getDouble ( HaskellObj ); +HsStablePtr rts_getStablePtr ( HaskellObj ); +HsBool rts_getBool ( HaskellObj ); /* ---------------------------------------------------------------------------- Evaluating Haskell expressions The versions ending in '_' allow you to specify an initial stack size. + Note that these calls may cause Garbage Collection, so all HaskellObj + references are rendered invalid by these calls. ------------------------------------------------------------------------- */ -SchedulerStatus -rts_eval ( HaskellObj p, /*out*/HaskellObj *ret ); +Capability * +rts_eval (Capability *, HaskellObj p, /*out*/HaskellObj *ret); -SchedulerStatus -rts_eval_ ( HaskellObj p, unsigned int stack_size, /*out*/HaskellObj *ret ); +Capability * +rts_eval_ (Capability *, HaskellObj p, unsigned int stack_size, + /*out*/HaskellObj *ret); -SchedulerStatus -rts_evalIO ( HaskellObj p, /*out*/HaskellObj *ret ); +Capability * +rts_evalIO (Capability *, HaskellObj p, /*out*/HaskellObj *ret); -SchedulerStatus -rts_evalLazyIO ( HaskellObj p, unsigned int stack_size, /*out*/HaskellObj *ret ); +Capability * +rts_evalStableIO (Capability *, HsStablePtr s, /*out*/HsStablePtr *ret); -#if defined(PAR) || defined(SMP) -SchedulerStatus -rts_evalNothing(unsigned int stack_size); -#endif +Capability * +rts_evalLazyIO (Capability *, HaskellObj p, /*out*/HaskellObj *ret); + +Capability * +rts_evalLazyIO_ (Capability *, HaskellObj p, unsigned int stack_size, + /*out*/HaskellObj *ret); void -rts_checkSchedStatus ( char* site, SchedulerStatus rc); +rts_checkSchedStatus (char* site, Capability *); + +SchedulerStatus +rts_getSchedStatus (Capability *cap); + +/* -------------------------------------------------------------------------- + Wrapper closures + + These are used by foreign export and foreign import "wrapper" stubs. + ----------------------------------------------------------------------- */ + +extern StgWord GHCziTopHandler_runIO_closure[]; +extern StgWord GHCziTopHandler_runNonIO_closure[]; +#define runIO_closure GHCziTopHandler_runIO_closure +#define runNonIO_closure GHCziTopHandler_runNonIO_closure + +/* ------------------------------------------------------------------------ */ + +#ifdef __cplusplus +} +#endif #endif /* RTSAPI_H */