1 /* ----------------------------------------------------------------------------
2 * $Id: RtsAPI.h,v 1.30 2002/09/05 08:58:55 simonmar Exp $
4 * (c) The GHC Team, 1998-1999
6 * API for invoking Haskell functions via the RTS
8 * --------------------------------------------------------------------------*/
20 * Running the scheduler
23 NoStatus, /* not finished yet */
24 Success, /* completed successfully */
25 Killed, /* uncaught exception */
26 Interrupted /* stopped in response to a call to interruptStgRts */
29 typedef StgClosure *HaskellObj;
31 /* ----------------------------------------------------------------------------
32 Starting up and shutting down the Haskell RTS.
33 ------------------------------------------------------------------------- */
34 extern void startupHaskell ( int argc, char *argv[],
35 void (*init_root)(void) );
36 extern void shutdownHaskell ( void );
37 extern void shutdownHaskellAndExit ( int exitCode );
38 extern void setProgArgv ( int argc, char *argv[] );
39 extern void getProgArgv ( int *argc, char **argv[] );
41 /* ----------------------------------------------------------------------------
42 Building Haskell objects from C datatypes.
43 ------------------------------------------------------------------------- */
44 HaskellObj rts_mkChar ( HsChar c );
45 HaskellObj rts_mkInt ( HsInt i );
46 HaskellObj rts_mkInt8 ( HsInt8 i );
47 HaskellObj rts_mkInt16 ( HsInt16 i );
48 HaskellObj rts_mkInt32 ( HsInt32 i );
49 HaskellObj rts_mkInt64 ( HsInt64 i );
50 HaskellObj rts_mkWord ( HsWord w );
51 HaskellObj rts_mkWord8 ( HsWord8 w );
52 HaskellObj rts_mkWord16 ( HsWord16 w );
53 HaskellObj rts_mkWord32 ( HsWord32 w );
54 HaskellObj rts_mkWord64 ( HsWord64 w );
55 HaskellObj rts_mkPtr ( HsPtr a );
56 HaskellObj rts_mkFloat ( HsFloat f );
57 HaskellObj rts_mkDouble ( HsDouble f );
58 HaskellObj rts_mkStablePtr ( HsStablePtr s );
59 HaskellObj rts_mkBool ( HsBool b );
60 HaskellObj rts_mkString ( char *s );
62 HaskellObj rts_apply ( HaskellObj, HaskellObj );
64 /* ----------------------------------------------------------------------------
65 Deconstructing Haskell objects
66 ------------------------------------------------------------------------- */
67 HsChar rts_getChar ( HaskellObj );
68 HsInt rts_getInt ( HaskellObj );
69 HsInt8 rts_getInt8 ( HaskellObj );
70 HsInt16 rts_getInt16 ( HaskellObj );
71 HsInt32 rts_getInt32 ( HaskellObj );
72 HsInt64 rts_getInt64 ( HaskellObj );
73 HsWord rts_getWord ( HaskellObj );
74 HsWord8 rts_getWord8 ( HaskellObj );
75 HsWord16 rts_getWord16 ( HaskellObj );
76 HsWord32 rts_getWord32 ( HaskellObj );
77 HsWord64 rts_getWord64 ( HaskellObj );
78 HsPtr rts_getPtr ( HaskellObj );
79 HsFloat rts_getFloat ( HaskellObj );
80 HsDouble rts_getDouble ( HaskellObj );
81 HsStablePtr rts_getStablePtr ( HaskellObj );
82 HsBool rts_getBool ( HaskellObj );
84 /* ----------------------------------------------------------------------------
85 Evaluating Haskell expressions
87 The versions ending in '_' allow you to specify an initial stack size.
88 ------------------------------------------------------------------------- */
90 rts_eval ( HaskellObj p, /*out*/HaskellObj *ret );
93 rts_eval_ ( HaskellObj p, unsigned int stack_size, /*out*/HaskellObj *ret );
96 rts_evalIO ( HaskellObj p, /*out*/HaskellObj *ret );
98 #if defined(COMPILING_RTS_MAIN)
99 /* Used by the RTS' main() only */
101 rts_mainEvalIO ( HaskellObj p, /*out*/HaskellObj *ret );
105 rts_evalStableIO ( HsStablePtr s, /*out*/HsStablePtr *ret );
108 rts_evalLazyIO ( HaskellObj p, unsigned int stack_size, /*out*/HaskellObj *ret );
111 rts_checkSchedStatus ( char* site, SchedulerStatus rc);
113 /* --------------------------------------------------------------------------
116 These are used by foreign export and foreign import "wrapper" stubs.
117 ----------------------------------------------------------------------- */
119 extern StgClosure GHCziTopHandler_runIO_closure;
120 extern StgClosure GHCziTopHandler_runNonIO_closure;
121 #define runIO_closure (&GHCziTopHandler_runIO_closure)
122 #define runNonIO_closure (&GHCziTopHandler_runNonIO_closure)
124 /* ------------------------------------------------------------------------ */
130 #endif /* RTSAPI_H */