1 /* ----------------------------------------------------------------------------
2 * $Id: RtsAPI.h,v 1.8 1999/11/02 15:05:52 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 */
22 AllBlocked, /* subtly different from Deadlock */
25 typedef StgClosure *HaskellObj;
27 /* ----------------------------------------------------------------------------
28 Starting up and shutting down the Haskell RTS.
29 ------------------------------------------------------------------------- */
30 extern void startupHaskell ( int argc, char *argv[] );
31 extern void shutdownHaskell ( void );
32 extern void shutdownHaskellAndExit ( int exitCode );
34 /* ----------------------------------------------------------------------------
35 Building Haskell objects from C datatypes.
36 ------------------------------------------------------------------------- */
37 HaskellObj rts_mkChar ( char c );
38 HaskellObj rts_mkInt ( int i );
39 HaskellObj rts_mkInt8 ( int i );
40 HaskellObj rts_mkInt16 ( int i );
41 HaskellObj rts_mkInt32 ( int i );
42 HaskellObj rts_mkInt64 ( long long i );
43 HaskellObj rts_mkWord ( unsigned int w );
44 HaskellObj rts_mkWord8 ( unsigned int w );
45 HaskellObj rts_mkWord16 ( unsigned int w );
46 HaskellObj rts_mkWord32 ( unsigned int w );
47 HaskellObj rts_mkWord64 ( unsigned long long w );
48 HaskellObj rts_mkFloat ( float f );
49 HaskellObj rts_mkDouble ( double f );
50 HaskellObj rts_mkStablePtr ( StgStablePtr s );
51 HaskellObj rts_mkAddr ( void *a );
52 HaskellObj rts_mkBool ( int b );
53 HaskellObj rts_mkString ( char *s );
55 HaskellObj rts_apply ( HaskellObj, HaskellObj );
57 /* ----------------------------------------------------------------------------
58 Deconstructing Haskell objects
59 ------------------------------------------------------------------------- */
60 char rts_getChar ( HaskellObj );
61 int rts_getInt ( HaskellObj );
62 int rts_getInt32 ( HaskellObj );
63 unsigned int rts_getWord ( HaskellObj );
64 unsigned int rts_getWord32 ( HaskellObj );
65 float rts_getFloat ( HaskellObj );
66 double rts_getDouble ( HaskellObj );
67 StgStablePtr rts_getStablePtr ( HaskellObj );
68 void * rts_getAddr ( HaskellObj );
69 int rts_getBool ( HaskellObj );
71 /* ----------------------------------------------------------------------------
72 Evaluating Haskell expressions
74 The versions ending in '_' allow you to specify an initial stack size.
75 ------------------------------------------------------------------------- */
77 rts_eval ( HaskellObj p, /*out*/HaskellObj *ret );
80 rts_eval_ ( HaskellObj p, unsigned int stack_size, /*out*/HaskellObj *ret );
83 rts_evalIO ( HaskellObj p, /*out*/HaskellObj *ret );
86 rts_evalLazyIO ( HaskellObj p, unsigned int stack_size, /*out*/HaskellObj *ret );
89 rts_checkSchedStatus ( char* site, SchedulerStatus rc);