/* ----------------------------------------------------------------------------
- * $Id: RtsAPI.c,v 1.2 1998/12/02 13:28:38 simonm Exp $
+ * $Id: RtsAPI.c,v 1.10 1999/11/02 15:05:59 simonmar Exp $
+ *
+ * (c) The GHC Team, 1998-1999
*
* API for invoking Haskell functions via the RTS
*
#include "Rts.h"
#include "Storage.h"
#include "RtsAPI.h"
+#include "SchedAPI.h"
#include "RtsFlags.h"
#include "RtsUtils.h"
rts_mkChar (char c)
{
StgClosure *p = (StgClosure *)allocate(CONSTR_sizeW(0,1));
- p->header.info = &CZh_con_info;
+ p->header.info = (const StgInfoTable*)&Czh_con_info;
p->payload[0] = (StgClosure *)((StgInt)c);
return p;
}
rts_mkInt (int i)
{
StgClosure *p = (StgClosure *)allocate(CONSTR_sizeW(0,1));
- p->header.info = &IZh_con_info;
+ p->header.info = (const StgInfoTable*)&Izh_con_info;
p->payload[0] = (StgClosure *)(StgInt)i;
return p;
}
instead of the one for Int8, but the types have identical
representation.
*/
- p->header.info = &IZh_con_info;
+ p->header.info = (const StgInfoTable*)&Izh_con_info;
/* Make sure we mask out the bits above the lowest 8 */
p->payload[0] = (StgClosure *)(StgInt)((unsigned)i & 0xff);
return p;
instead of the one for Int8, but the types have identical
representation.
*/
- p->header.info = &IZh_con_info;
+ p->header.info = (const StgInfoTable*)&Izh_con_info;
/* Make sure we mask out the relevant bits */
p->payload[0] = (StgClosure *)(StgInt)((unsigned)i & 0xffff);
return p;
{
StgClosure *p = (StgClosure *)allocate(CONSTR_sizeW(0,1));
/* see mk_Int8 comment */
- p->header.info = &IZh_con_info;
+ p->header.info = (const StgInfoTable*)&Izh_con_info;
p->payload[0] = (StgClosure *)(StgInt)i;
return p;
}
long long *tmp;
StgClosure *p = (StgClosure *)allocate(CONSTR_sizeW(0,2));
/* see mk_Int8 comment */
- p->header.info = &I64Zh_con_info;
+ p->header.info = (const StgInfoTable*)&I64zh_con_info;
tmp = (long long*)&(p->payload[0]);
*tmp = (StgInt64)i;
return p;
rts_mkWord (unsigned int i)
{
StgClosure *p = (StgClosure *)allocate(CONSTR_sizeW(0,1));
- p->header.info = &WZh_con_info;
+ p->header.info = (const StgInfoTable*)&Wzh_con_info;
p->payload[0] = (StgClosure *)(StgWord)i;
return p;
}
{
/* see rts_mkInt* comments */
StgClosure *p = (StgClosure *)allocate(CONSTR_sizeW(0,1));
- p->header.info = &WZh_con_info;
+ p->header.info = (const StgInfoTable*)&Wzh_con_info;
p->payload[0] = (StgClosure *)(StgWord)(w & 0xff);
return p;
}
{
/* see rts_mkInt* comments */
StgClosure *p = (StgClosure *)allocate(CONSTR_sizeW(0,1));
- p->header.info = &WZh_con_info;
+ p->header.info = (const StgInfoTable*)&Wzh_con_info;
p->payload[0] = (StgClosure *)(StgWord)(w & 0xffff);
return p;
}
{
/* see rts_mkInt* comments */
StgClosure *p = (StgClosure *)allocate(CONSTR_sizeW(0,1));
- p->header.info = &WZh_con_info;
+ p->header.info = (const StgInfoTable*)&Wzh_con_info;
p->payload[0] = (StgClosure *)(StgWord)w;
return p;
}
rts_mkWord64 (unsigned long long w)
{
unsigned long long *tmp;
- extern StgInfoTable W64Zh_con_info;
StgClosure *p = (StgClosure *)allocate(CONSTR_sizeW(0,2));
/* see mk_Int8 comment */
- p->header.info = &W64Zh_con_info;
+ p->header.info = (const StgInfoTable*)&W64zh_con_info;
tmp = (unsigned long long*)&(p->payload[0]);
- *tmp = (StgNat64)w;
+ *tmp = (StgWord64)w;
return p;
}
rts_mkFloat (float f)
{
StgClosure *p = (StgClosure *)allocate(CONSTR_sizeW(0,1));
- p->header.info = &FZh_con_info;
+ p->header.info = (const StgInfoTable*)&Fzh_con_info;
ASSIGN_FLT((P_)p->payload, (StgFloat)f);
return p;
}
rts_mkDouble (double d)
{
StgClosure *p = (StgClosure *)allocate(CONSTR_sizeW(0,sizeofW(StgDouble)));
- p->header.info = &DZh_con_info;
+ p->header.info = (const StgInfoTable*)&Dzh_con_info;
ASSIGN_DBL((P_)p->payload, (StgDouble)d);
return p;
}
rts_mkStablePtr (StgStablePtr s)
{
StgClosure *p = (StgClosure *)allocate(sizeofW(StgHeader)+1);
- p->header.info = &StablePtr_con_info;
+ p->header.info = (const StgInfoTable*)&StablePtr_con_info;
p->payload[0] = (StgClosure *)s;
return p;
}
rts_mkAddr (void *a)
{
StgClosure *p = (StgClosure *)allocate(sizeofW(StgHeader)+1);
- p->header.info = &AZh_con_info;
+ p->header.info = (const StgInfoTable*)&Azh_con_info;
p->payload[0] = (StgClosure *)a;
return p;
}
{
return rts_apply((StgClosure *)&unpackCString_closure, rts_mkAddr(s));
}
+#endif /* COMPILER */
HaskellObj
rts_apply (HaskellObj f, HaskellObj arg)
ap->payload[0] = (P_)arg;
return (StgClosure *)ap;
}
-#endif /* COMPILER */
/* ----------------------------------------------------------------------------
Deconstructing Haskell objects
char
rts_getChar (HaskellObj p)
{
- if (p->header.info == &CZh_con_info || p->header.info == &CZh_static_info) {
+ if ( p->header.info == (const StgInfoTable*)&Czh_con_info ||
+ p->header.info == (const StgInfoTable*)&Czh_static_info) {
return (char)(StgWord)(p->payload[0]);
} else {
barf("getChar: not a Char");
int
rts_getInt (HaskellObj p)
{
- if (p->header.info == &IZh_con_info || p->header.info == &IZh_static_info) {
+ if ( 1 ||
+ p->header.info == (const StgInfoTable*)&Izh_con_info ||
+ p->header.info == (const StgInfoTable*)&Izh_static_info ) {
+ return (int)(p->payload[0]);
+ } else {
+ barf("getInt: not an Int");
+ }
+}
+
+int
+rts_getInt32 (HaskellObj p)
+{
+ if ( 1 ||
+ p->header.info == (const StgInfoTable*)&Izh_con_info ||
+ p->header.info == (const StgInfoTable*)&Izh_static_info ) {
return (int)(p->payload[0]);
} else {
barf("getInt: not an Int");
unsigned int
rts_getWord (HaskellObj p)
{
- if (p->header.info == &WZh_con_info || p->header.info == &WZh_static_info) {
+ if ( 1 || /* see above comment */
+ p->header.info == (const StgInfoTable*)&Wzh_con_info ||
+ p->header.info == (const StgInfoTable*)&Wzh_static_info ) {
+ return (unsigned int)(p->payload[0]);
+ } else {
+ barf("getWord: not a Word");
+ }
+}
+
+unsigned int
+rts_getWord32 (HaskellObj p)
+{
+ if ( 1 || /* see above comment */
+ p->header.info == (const StgInfoTable*)&Wzh_con_info ||
+ p->header.info == (const StgInfoTable*)&Wzh_static_info ) {
return (unsigned int)(p->payload[0]);
} else {
barf("getWord: not a Word");
float
rts_getFloat (HaskellObj p)
{
- if (p->header.info == &FZh_con_info || p->header.info == &FZh_static_info) {
+ if ( p->header.info == (const StgInfoTable*)&Fzh_con_info ||
+ p->header.info == (const StgInfoTable*)&Fzh_static_info ) {
return (float)(PK_FLT((P_)p->payload));
} else {
barf("getFloat: not a Float");
double
rts_getDouble (HaskellObj p)
{
- if (p->header.info == &DZh_con_info || p->header.info == &DZh_static_info) {
+ if ( p->header.info == (const StgInfoTable*)&Dzh_con_info ||
+ p->header.info == (const StgInfoTable*)&Dzh_static_info ) {
return (double)(PK_DBL((P_)p->payload));
} else {
barf("getDouble: not a Double");
StgStablePtr
rts_getStablePtr (HaskellObj p)
{
- if (p->header.info == &StablePtr_con_info ||
- p->header.info == &StablePtr_static_info) {
+ if ( p->header.info == (const StgInfoTable*)&StablePtr_con_info ||
+ p->header.info == (const StgInfoTable*)&StablePtr_static_info ) {
return (StgStablePtr)(p->payload[0]);
} else {
barf("getStablePtr: not a StablePtr");
void *
rts_getAddr (HaskellObj p)
{
- if (p->header.info == &AZh_con_info || p->header.info == &AZh_static_info) {
+ if ( p->header.info == (const StgInfoTable*)&Azh_con_info ||
+ p->header.info == (const StgInfoTable*)&Azh_static_info ) {
+
return (void *)(p->payload[0]);
} else {
barf("getAddr: not an Addr");
rts_eval (HaskellObj p, /*out*/HaskellObj *ret)
{
StgTSO *tso = createGenThread(RtsFlags.GcFlags.initialStkSize, p);
- return schedule(tso, ret);
+ scheduleThread(tso);
+ return waitThread(tso, ret);
}
SchedulerStatus
rts_eval_ (HaskellObj p, unsigned int stack_size, /*out*/HaskellObj *ret)
{
StgTSO *tso = createGenThread(stack_size, p);
- return schedule(tso, ret);
+ scheduleThread(tso);
+ return waitThread(tso, ret);
}
+/*
+ * rts_evalIO() evaluates a value of the form (IO a), forcing the action's
+ * result to WHNF before returning.
+ */
SchedulerStatus
rts_evalIO (HaskellObj p, /*out*/HaskellObj *ret)
{
- StgTSO *tso = createIOThread(RtsFlags.GcFlags.initialStkSize, p);
- return schedule(tso, ret);
+ StgTSO* tso = createStrictIOThread(RtsFlags.GcFlags.initialStkSize, p);
+ scheduleThread(tso);
+ return waitThread(tso, ret);
}
+/*
+ * Like rts_evalIO(), but doesn't force the action's result.
+ */
SchedulerStatus
-rts_evalIO_ (HaskellObj p, unsigned int stack_size, /*out*/HaskellObj *ret)
+rts_evalLazyIO (HaskellObj p, unsigned int stack_size, /*out*/HaskellObj *ret)
{
StgTSO *tso = createIOThread(stack_size, p);
- return schedule(tso, ret);
+ scheduleThread(tso);
+ return waitThread(tso, ret);
}
/* Convenience function for decoding the returned status. */