1 /* ----------------------------------------------------------------------------
2 * $Id: RtsAPI.h,v 1.10 2000/03/30 12:03:31 simonmar Exp $
4 * (c) The GHC Team, 1998-1999
6 * API for invoking Haskell functions via the RTS
8 * --------------------------------------------------------------------------*/
14 * Running the scheduler
17 NoStatus, /* not finished yet */
19 Killed, /* another thread killed us */
20 Interrupted, /* stopped in response to a call to interruptStgRts */
21 Deadlock /* no threads to run, but main thread hasn't finished */
24 typedef StgClosure *HaskellObj;
26 /* ----------------------------------------------------------------------------
27 Starting up and shutting down the Haskell RTS.
28 ------------------------------------------------------------------------- */
29 extern void startupHaskell ( int argc, char *argv[], void *init_root );
30 extern void shutdownHaskell ( void );
31 extern void shutdownHaskellAndExit ( int exitCode );
33 /* ----------------------------------------------------------------------------
34 Building Haskell objects from C datatypes.
35 ------------------------------------------------------------------------- */
36 HaskellObj rts_mkChar ( char c );
37 HaskellObj rts_mkInt ( int i );
38 HaskellObj rts_mkInt8 ( int i );
39 HaskellObj rts_mkInt16 ( int i );
40 HaskellObj rts_mkInt32 ( int i );
41 HaskellObj rts_mkInt64 ( long long i );
42 HaskellObj rts_mkWord ( unsigned int w );
43 HaskellObj rts_mkWord8 ( unsigned int w );
44 HaskellObj rts_mkWord16 ( unsigned int w );
45 HaskellObj rts_mkWord32 ( unsigned int w );
46 HaskellObj rts_mkWord64 ( unsigned long long w );
47 HaskellObj rts_mkFloat ( float f );
48 HaskellObj rts_mkDouble ( double f );
49 HaskellObj rts_mkStablePtr ( StgStablePtr s );
50 HaskellObj rts_mkAddr ( void *a );
51 HaskellObj rts_mkBool ( int b );
52 HaskellObj rts_mkString ( char *s );
54 HaskellObj rts_apply ( HaskellObj, HaskellObj );
56 /* ----------------------------------------------------------------------------
57 Deconstructing Haskell objects
58 ------------------------------------------------------------------------- */
59 char rts_getChar ( HaskellObj );
60 int rts_getInt ( HaskellObj );
61 int rts_getInt32 ( HaskellObj );
62 unsigned int rts_getWord ( HaskellObj );
63 unsigned int rts_getWord32 ( HaskellObj );
64 float rts_getFloat ( HaskellObj );
65 double rts_getDouble ( HaskellObj );
66 StgStablePtr rts_getStablePtr ( HaskellObj );
67 void * rts_getAddr ( HaskellObj );
68 int rts_getBool ( HaskellObj );
70 /* ----------------------------------------------------------------------------
71 Evaluating Haskell expressions
73 The versions ending in '_' allow you to specify an initial stack size.
74 ------------------------------------------------------------------------- */
76 rts_eval ( HaskellObj p, /*out*/HaskellObj *ret );
79 rts_eval_ ( HaskellObj p, unsigned int stack_size, /*out*/HaskellObj *ret );
82 rts_evalIO ( HaskellObj p, /*out*/HaskellObj *ret );
85 rts_evalLazyIO ( HaskellObj p, unsigned int stack_size, /*out*/HaskellObj *ret );
88 rts_checkSchedStatus ( char* site, SchedulerStatus rc);