/* -----------------------------------------------------------------------------
- * $Id: PrimOps.hc,v 1.6 1999/01/23 17:53:28 sof Exp $
+ * $Id: PrimOps.hc,v 1.84 2001/11/08 12:46:31 simonmar Exp $
+ *
+ * (c) The GHC Team, 1998-2000
*
* Primitive functions / data
*
* ---------------------------------------------------------------------------*/
+#include "Stg.h"
#include "Rts.h"
-#ifdef COMPILER
-
#include "RtsFlags.h"
#include "StgStartup.h"
#include "SchedAPI.h"
#include "RtsUtils.h"
#include "Storage.h"
#include "BlockAlloc.h" /* tmp */
-#include "StablePtr.h"
+#include "StablePriv.h"
+#include "StgRun.h"
+#include "Itimer.h"
+#include "Prelude.h"
/* ** temporary **
classes CCallable and CReturnable don't really exist, but the
compiler insists on generating dictionaries containing references
to GHC_ZcCCallable_static_info etc., so we provide dummy symbols
- for these.
+ for these. Some C compilers can't cope with zero-length static arrays,
+ so we have to make these one element long.
*/
-W_ GHC_ZcCCallable_static_info[0];
-W_ GHC_ZcCReturnable_static_info[0];
-
-#ifndef aix_TARGET_OS /* AIX gives link errors with this as a const (RO assembler section) */
-const
-#endif
- StgClosure *PrelBase_Bool_closure_tbl[] = {
- &False_closure,
- &True_closure
-};
-
+StgWord GHC_ZCCCallable_static_info[1];
+StgWord GHC_ZCCReturnable_static_info[1];
+
/* -----------------------------------------------------------------------------
Macros for Hand-written primitives.
-------------------------------------------------------------------------- */
*/
/*------ All Regs available */
-#ifdef REG_R8
+#if defined(REG_R8)
# define RET_P(a) R1.w = (W_)(a); JMP_(ENTRY_CODE(Sp[0]));
# define RET_N(a) RET_P(a)
R1.w = (W_)(a); R2.w = (W_)(b); R3.w = (W_)(c); R4.w = (W_)d; \
JMP_(ENTRY_CODE(Sp[0]));
+# define RET_NPNP(a,b,c,d) \
+ R1.w = (W_)(a); R2.w = (W_)(b); R3.w = (W_)(c); R4.w = (W_)(d); \
+ JMP_(ENTRY_CODE(Sp[0]));
+
# define RET_NNPNNP(a,b,c,d,e,f) \
R1.w = (W_)(a); R2.w = (W_)(b); R3.w = (W_)(c); \
R4.w = (W_)(d); R5.w = (W_)(e); R6.w = (W_)(f); \
JMP_(ENTRY_CODE(Sp[0]));
-#else
-
-#if defined(REG_R7) || defined(REG_R6) || defined(REG_R5) || \
- defined(REG_R4) || defined(REG_R3) || defined(REG_R2)
+#elif defined(REG_R7) || defined(REG_R6) || defined(REG_R5) || \
+ defined(REG_R4) || defined(REG_R3)
# error RET_n macros not defined for this setup.
-#else
+
+/*------ 2 Registers available */
+#elif defined(REG_R2)
+
+# define RET_P(a) R1.w = (W_)(a); JMP_(ENTRY_CODE(Sp[0]));
+# define RET_N(a) RET_P(a)
+
+# define RET_PP(a,b) R1.w = (W_)(a); R2.w = (W_)(b); \
+ JMP_(ENTRY_CODE(Sp[0]));
+# define RET_NN(a,b) RET_PP(a,b)
+# define RET_NP(a,b) RET_PP(a,b)
+
+# define RET_PPP(a,b,c) \
+ R1.w = (W_)(a); R2.w = (W_)(b); Sp[-1] = (W_)(c); Sp -= 1; \
+ JMP_(ENTRY_CODE(Sp[1]));
+# define RET_NNP(a,b,c) \
+ R1.w = (W_)(a); R2.w = (W_)(b); Sp[-1] = (W_)(c); Sp -= 1; \
+ JMP_(ENTRY_CODE(Sp[1]));
+
+# define RET_NNNP(a,b,c,d) \
+ R1.w = (W_)(a); \
+ R2.w = (W_)(b); \
+ /* Sp[-3] = ARGTAG(1); */ \
+ Sp[-2] = (W_)(c); \
+ Sp[-1] = (W_)(d); \
+ Sp -= 3; \
+ JMP_(ENTRY_CODE(Sp[3]));
+
+# define RET_NPNP(a,b,c,d) \
+ R1.w = (W_)(a); \
+ R2.w = (W_)(b); \
+ /* Sp[-3] = ARGTAG(1); */ \
+ Sp[-2] = (W_)(c); \
+ Sp[-1] = (W_)(d); \
+ Sp -= 3; \
+ JMP_(ENTRY_CODE(Sp[3]));
+
+# define RET_NNPNNP(a,b,c,d,e,f) \
+ R1.w = (W_)(a); \
+ R2.w = (W_)(b); \
+ Sp[-6] = (W_)(c); \
+ /* Sp[-5] = ARGTAG(1); */ \
+ Sp[-4] = (W_)(d); \
+ /* Sp[-3] = ARGTAG(1); */ \
+ Sp[-2] = (W_)(e); \
+ Sp[-1] = (W_)(f); \
+ Sp -= 6; \
+ JMP_(ENTRY_CODE(Sp[6]));
/*------ 1 Register available */
-#ifdef REG_R1
+#elif defined(REG_R1)
# define RET_P(a) R1.w = (W_)(a); JMP_(ENTRY_CODE(Sp[0]));
# define RET_N(a) RET_P(a)
Sp -= 5; \
JMP_(ENTRY_CODE(Sp[5]));
+# define RET_NPNP(a,b,c,d) \
+ R1.w = (W_)(a); \
+ Sp[-4] = (W_)(b); \
+ /* Sp[-3] = ARGTAG(1); */ \
+ Sp[-2] = (W_)(c); \
+ Sp[-1] = (W_)(d); \
+ Sp -= 4; \
+ JMP_(ENTRY_CODE(Sp[4]));
+
# define RET_NNPNNP(a,b,c,d,e,f) \
R1.w = (W_)(a); \
Sp[-1] = (W_)(f); \
#else /* 0 Regs available */
#define PUSH_P(o,x) Sp[-o] = (W_)(x)
-#define PUSH_N(o,x) Sp[1-o] = (W_)(x); /* Sp[-o] = ARGTAG(1) */
+
+#ifdef DEBUG
+#define PUSH_N(o,x) Sp[1-o] = (W_)(x); Sp[-o] = ARG_TAG(1);
+#else
+#define PUSH_N(o,x) Sp[1-o] = (W_)(x);
+#endif
+
#define PUSHED(m) Sp -= (m); JMP_(ENTRY_CODE(Sp[m]));
/* Here's how to construct these macros:
# define RET_NP(a,b) PUSH_N(3,a); PUSH_P(1,b); PUSHED(3)
# define RET_PPP(a,b,c) PUSH_P(3,a); PUSH_P(2,b); PUSH_P(1,c); PUSHED(3)
-# define RET_NNP(a,b,c) PUSH_N(6,a); PUSH_N(4,b); PUSH_N(2,c); PUSHED(6)
+# define RET_NNP(a,b,c) PUSH_N(5,a); PUSH_N(3,b); PUSH_P(1,c); PUSHED(5)
# define RET_NNNP(a,b,c,d) PUSH_N(7,a); PUSH_N(5,b); PUSH_N(3,c); PUSH_P(1,d); PUSHED(7)
+# define RET_NPNP(a,b,c,d) PUSH_N(6,a); PUSH_P(4,b); PUSH_N(3,c); PUSH_P(1,d); PUSHED(6)
# define RET_NNPNNP(a,b,c,d,e,f) PUSH_N(10,a); PUSH_N(8,b); PUSH_P(6,c); PUSH_N(5,d); PUSH_N(3,e); PUSH_P(1,f); PUSHED(10)
#endif
-#endif
-#endif
-
/*-----------------------------------------------------------------------------
Array Primitives
#define BYTES_TO_STGWORDS(n) ((n) + sizeof(W_) - 1)/sizeof(W_)
-#define newByteArray(ty,scale) \
- FN_(new##ty##ArrayZh_fast) \
+FN_(newByteArrayzh_fast) \
{ \
- W_ stuff_size, size, n; \
+ W_ size, stuff_size, n; \
StgArrWords* p; \
FB_ \
- MAYBE_GC(NO_PTRS,new##ty##ArrayZh_fast); \
+ MAYBE_GC(NO_PTRS,newByteArrayzh_fast); \
n = R1.w; \
- stuff_size = BYTES_TO_STGWORDS(n*scale); \
+ stuff_size = BYTES_TO_STGWORDS(n); \
size = sizeofW(StgArrWords)+ stuff_size; \
p = (StgArrWords *)RET_STGCALL1(P_,allocate,size); \
TICK_ALLOC_PRIM(sizeofW(StgArrWords),stuff_size,0); \
- SET_HDR(p, &MUT_ARR_WORDS_info, CCCS); \
+ SET_HDR(p, &stg_ARR_WORDS_info, CCCS); \
p->words = stuff_size; \
TICK_RET_UNBOXED_TUP(1) \
RET_P(p); \
FE_ \
}
-newByteArray(Char, sizeof(C_))
-newByteArray(Int, sizeof(I_));
-newByteArray(Word, sizeof(W_));
-newByteArray(Addr, sizeof(P_));
-newByteArray(Float, sizeof(StgFloat));
-newByteArray(Double, sizeof(StgDouble));
-newByteArray(StablePtr, sizeof(StgStablePtr));
+FN_(newPinnedByteArrayzh_fast) \
+ { \
+ W_ size, stuff_size, n; \
+ StgArrWords* p; \
+ FB_ \
+ MAYBE_GC(NO_PTRS,newPinnedByteArrayzh_fast); \
+ n = R1.w; \
+ stuff_size = BYTES_TO_STGWORDS(n); \
+ size = sizeofW(StgArrWords)+ stuff_size; \
+ p = (StgArrWords *)RET_STGCALL1(P_,allocatePinned,size); \
+ TICK_ALLOC_PRIM(sizeofW(StgArrWords),stuff_size,0); \
+ SET_HDR(p, &stg_ARR_WORDS_info, CCCS); \
+ p->words = stuff_size; \
+ TICK_RET_UNBOXED_TUP(1) \
+ RET_P(p); \
+ FE_ \
+ }
-FN_(newArrayZh_fast)
+FN_(newArrayzh_fast)
{
W_ size, n, init;
StgMutArrPtrs* arr;
FB_
n = R1.w;
- MAYBE_GC(R2_PTR,newArrayZh_fast);
+ MAYBE_GC(R2_PTR,newArrayzh_fast);
size = sizeofW(StgMutArrPtrs) + n;
arr = (StgMutArrPtrs *)RET_STGCALL1(P_, allocate, size);
TICK_ALLOC_PRIM(sizeofW(StgMutArrPtrs), n, 0);
- SET_HDR(arr,&MUT_ARR_PTRS_info,CCCS);
+ SET_HDR(arr,&stg_MUT_ARR_PTRS_info,CCCS);
arr->ptrs = n;
init = R2.w;
FE_
}
-FN_(newMutVarZh_fast)
+FN_(newMutVarzh_fast)
{
StgMutVar* mv;
/* Args: R1.p = initialisation value */
FB_
- HP_CHK_GEN(sizeofW(StgMutVar), R1_PTR, newMutVarZh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgMutVar), R1_PTR, newMutVarzh_fast,);
TICK_ALLOC_PRIM(sizeofW(StgHeader)+1,1, 0); /* hack, dependent on rep. */
CCS_ALLOC(CCCS,sizeofW(StgMutVar));
mv = (StgMutVar *)(Hp-sizeofW(StgMutVar)+1);
- SET_HDR(mv,&MUT_VAR_info,CCCS);
+ SET_HDR(mv,&stg_MUT_VAR_info,CCCS);
mv->var = R1.cl;
TICK_RET_UNBOXED_TUP(1);
-------------------------------------------------------------------------- */
-#ifndef PAR
-FN_(makeForeignObjZh_fast)
+FN_(mkForeignObjzh_fast)
{
/* R1.p = ptr to foreign object,
*/
StgForeignObj *result;
FB_
- HP_CHK_GEN(sizeofW(StgForeignObj), NO_PTRS, makeForeignObjZh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgForeignObj), NO_PTRS, mkForeignObjzh_fast,);
TICK_ALLOC_PRIM(sizeofW(StgHeader),
sizeofW(StgForeignObj)-sizeofW(StgHeader), 0);
CCS_ALLOC(CCCS,sizeofW(StgForeignObj)); /* ccs prof */
result = (StgForeignObj *) (Hp + 1 - sizeofW(StgForeignObj));
- SET_HDR(result,&FOREIGN_info,CCCS);
+ SET_HDR(result,&stg_FOREIGN_info,CCCS);
result->data = R1.p;
/* returns (# s#, ForeignObj# #) */
RET_P(result);
FE_
}
-#endif
+
+/* These two are out-of-line for the benefit of the NCG */
+FN_(unsafeThawArrayzh_fast)
+{
+ FB_
+ SET_INFO((StgClosure *)R1.cl,&stg_MUT_ARR_PTRS_info);
+ recordMutable((StgMutClosure*)R1.cl);
+
+ TICK_RET_UNBOXED_TUP(1);
+ RET_P(R1.p);
+ FE_
+}
/* -----------------------------------------------------------------------------
Weak Pointer Primitives
-------------------------------------------------------------------------- */
-#ifndef PAR
-
-FN_(mkWeakZh_fast)
+FN_(mkWeakzh_fast)
{
/* R1.p = key
R2.p = value
- R3.p = finaliser
+ R3.p = finalizer (or NULL)
*/
StgWeak *w;
FB_
- HP_CHK_GEN(sizeofW(StgWeak), R1_PTR|R2_PTR|R3_PTR, mkWeakZh_fast,);
+ if (R3.cl == NULL) {
+ R3.cl = &stg_NO_FINALIZER_closure;
+ }
+
+ HP_CHK_GEN_TICKY(sizeofW(StgWeak),R1_PTR|R2_PTR|R3_PTR, mkWeakzh_fast,);
TICK_ALLOC_PRIM(sizeofW(StgHeader)+1, // +1 is for the link field
sizeofW(StgWeak)-sizeofW(StgHeader)-1, 0);
CCS_ALLOC(CCCS,sizeofW(StgWeak)); /* ccs prof */
w = (StgWeak *) (Hp + 1 - sizeofW(StgWeak));
- SET_HDR(w, &WEAK_info, CCCS);
+ SET_HDR(w, &stg_WEAK_info, CCCS);
w->key = R1.cl;
w->value = R2.cl;
- w->finaliser = R3.cl;
+ w->finalizer = R3.cl;
w->link = weak_ptr_list;
weak_ptr_list = w;
FE_
}
-FN_(deRefWeakZh_fast)
+FN_(finalizzeWeakzh_fast)
{
/* R1.p = weak ptr
*/
- StgWeak *w;
+ StgDeadWeak *w;
+ StgClosure *f;
FB_
-
- TICK_RET_UNBOXED_TUP(2);
- w = (StgWeak *)R1.p;
- if (w->header.info == &WEAK_info) {
- RET_NP(1, w->value);
+ TICK_RET_UNBOXED_TUP(0);
+ w = (StgDeadWeak *)R1.p;
+
+ /* already dead? */
+ if (w->header.info == &stg_DEAD_WEAK_info) {
+ RET_NP(0,&stg_NO_FINALIZER_closure);
+ }
+
+ /* kill it */
+ w->header.info = &stg_DEAD_WEAK_info;
+ f = ((StgWeak *)w)->finalizer;
+ w->link = ((StgWeak *)w)->link;
+
+ /* return the finalizer */
+ if (f == &stg_NO_FINALIZER_closure) {
+ RET_NP(0,&stg_NO_FINALIZER_closure);
} else {
- RET_NP(0, w);
+ RET_NP(1,f);
}
FE_
}
-#endif /* !PAR */
-
/* -----------------------------------------------------------------------------
Arbitrary-precision Integer operations.
-------------------------------------------------------------------------- */
-FN_(int2IntegerZh_fast)
+FN_(int2Integerzh_fast)
{
/* arguments: R1 = Int# */
FB_
val = R1.i;
- HP_CHK_GEN(sizeofW(StgArrWords)+1, NO_PTRS, int2IntegerZh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+1, NO_PTRS, int2Integerzh_fast,);
TICK_ALLOC_PRIM(sizeofW(StgArrWords),1,0);
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+1); /* ccs prof */
- p = stgCast(StgArrWords*,Hp)-1;
- SET_ARR_HDR(p, &ARR_WORDS_info, CCCS, 1);
+ p = (StgArrWords *)Hp - 1;
+ SET_ARR_HDR(p, &stg_ARR_WORDS_info, CCCS, 1);
/* mpz_set_si is inlined here, makes things simpler */
if (val < 0) {
s = 0;
}
- /* returns (# alloc :: Int#,
- size :: Int#,
+ /* returns (# size :: Int#,
data :: ByteArray#
#)
*/
- TICK_RET_UNBOXED_TUP(3);
- RET_NNP(1,s,p);
+ TICK_RET_UNBOXED_TUP(2);
+ RET_NP(s,p);
FE_
}
-FN_(word2IntegerZh_fast)
+FN_(word2Integerzh_fast)
{
/* arguments: R1 = Word# */
FB_
val = R1.w;
- HP_CHK_GEN(sizeofW(StgArrWords)+1, NO_PTRS, word2IntegerZh_fast,)
+ HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+1, NO_PTRS, word2Integerzh_fast,)
TICK_ALLOC_PRIM(sizeofW(StgArrWords),1,0);
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+1); /* ccs prof */
- p = stgCast(StgArrWords*,Hp)-1;
- SET_ARR_HDR(p, &ARR_WORDS_info, CCCS, 1);
+ p = (StgArrWords *)Hp - 1;
+ SET_ARR_HDR(p, &stg_ARR_WORDS_info, CCCS, 1);
if (val != 0) {
s = 1;
s = 0;
}
- /* returns (# alloc :: Int#,
- size :: Int#,
+ /* returns (# size :: Int#,
data :: ByteArray#
#)
*/
- TICK_RET_UNBOXED_TUP(3);
- RET_NNP(1,s,p);
+ TICK_RET_UNBOXED_TUP(2);
+ RET_NP(s,p);
FE_
}
-FN_(addr2IntegerZh_fast)
-{
- MP_INT result;
- char *str;
- FB_
-
- MAYBE_GC(NO_PTRS,addr2IntegerZh_fast);
-
- /* args: R1 :: Addr# */
- str = R1.a;
-
- /* Perform the operation */
- if (RET_STGCALL3(int, mpz_init_set_str,&result,(str),/*base*/10))
- abort();
-
- TICK_RET_UNBOXED_TUP(3);
- RET_NNP(result._mp_alloc, result._mp_size,
- result._mp_d - sizeofW(StgArrWords));
- FE_
-}
/*
* 'long long' primops for converting to/from Integers.
#ifdef SUPPORT_LONG_LONGS
-FN_(int64ToIntegerZh_fast)
+FN_(int64ToIntegerzh_fast)
{
/* arguments: L1 = Int64# */
StgInt64 val; /* to avoid aliasing */
W_ hi;
- I_ s,a, neg, words_needed;
+ I_ s, neg, words_needed;
StgArrWords* p; /* address of array result */
FB_
/* minimum is one word */
words_needed = 1;
}
- HP_CHK_GEN(sizeofW(StgArrWords)+words_needed, NO_PTRS, int64ToIntegerZh_fast,)
+ HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+words_needed, NO_PTRS, int64ToIntegerzh_fast,)
TICK_ALLOC_PRIM(sizeofW(StgArrWords),words_needed,0);
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+words_needed); /* ccs prof */
- p = stgCast(StgArrWords*,(Hp-words_needed+1))-1;
- SET_ARR_HDR(p, &ARR_WORDS_info, CCCS, words_needed);
-
- a = words_needed;
+ p = (StgArrWords *)(Hp-words_needed+1) - 1;
+ SET_ARR_HDR(p, &stg_ARR_WORDS_info, CCCS, words_needed);
if ( val < 0LL ) {
neg = 1;
val = -val;
- }
+ }
hi = (W_)((LW_)val / 0x100000000ULL);
- if ( a == 2 ) {
- s = 2;
+ if ( words_needed == 2 ) {
+ s = 2;
Hp[-1] = (W_)val;
Hp[0] = hi;
} else if ( val != 0 ) {
}
s = ( neg ? -s : s );
- /* returns (# alloc :: Int#,
- size :: Int#,
+ /* returns (# size :: Int#,
data :: ByteArray#
#)
*/
- TICK_RET_UNBOXED_TUP(3);
- RET_NNP(a,s,p);
+ TICK_RET_UNBOXED_TUP(2);
+ RET_NP(s,p);
FE_
}
-FN_(word64ToIntegerZh_fast)
+FN_(word64ToIntegerzh_fast)
{
/* arguments: L1 = Word64# */
- StgNat64 val; /* to avoid aliasing */
+ StgWord64 val; /* to avoid aliasing */
StgWord hi;
- I_ s,a,words_needed;
+ I_ s, words_needed;
StgArrWords* p; /* address of array result */
FB_
} else {
words_needed = 1;
}
- HP_CHK_GEN(sizeofW(StgArrWords)+words_needed, NO_PTRS, word64ToIntegerZh_fast,)
+ HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+words_needed, NO_PTRS, word64ToIntegerzh_fast,)
TICK_ALLOC_PRIM(sizeofW(StgArrWords),words_needed,0);
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+words_needed); /* ccs prof */
- p = stgCast(StgArrWords*,(Hp-words_needed+1))-1;
- SET_ARR_HDR(p, &ARR_WORDS_info, CCCS, words_needed);
-
- a = words_needed;
+ p = (StgArrWords *)(Hp-words_needed+1) - 1;
+ SET_ARR_HDR(p, &stg_ARR_WORDS_info, CCCS, words_needed);
hi = (W_)((LW_)val / 0x100000000ULL);
if ( val >= 0x100000000ULL ) {
s = 0;
}
- /* returns (# alloc :: Int#,
- size :: Int#,
+ /* returns (# size :: Int#,
data :: ByteArray#
#)
*/
- TICK_RET_UNBOXED_TUP(3);
- RET_NNP(a,s,p);
+ TICK_RET_UNBOXED_TUP(2);
+ RET_NP(s,p);
FE_
}
-#endif /* HAVE_LONG_LONG */
+#endif /* SUPPORT_LONG_LONGS */
/* ToDo: this is shockingly inefficient */
FN_(name) \
{ \
MP_INT arg1, arg2, result; \
- I_ a1, s1, a2, s2; \
+ I_ s1, s2; \
StgArrWords* d1; \
StgArrWords* d2; \
FB_ \
\
/* call doYouWantToGC() */ \
- MAYBE_GC(R3_PTR | R6_PTR, name); \
+ MAYBE_GC(R2_PTR | R4_PTR, name); \
\
- a1 = R1.i; \
- s1 = R2.i; \
- d1 = stgCast(StgArrWords*,R3.p); \
- a2 = R4.i; \
- s2 = R5.i; \
- d2 = stgCast(StgArrWords*,R6.p); \
+ d1 = (StgArrWords *)R2.p; \
+ s1 = R1.i; \
+ d2 = (StgArrWords *)R4.p; \
+ s2 = R3.i; \
\
- arg1._mp_alloc = (a1); \
+ arg1._mp_alloc = d1->words; \
arg1._mp_size = (s1); \
arg1._mp_d = (unsigned long int *) (BYTE_ARR_CTS(d1)); \
- arg2._mp_alloc = (a2); \
+ arg2._mp_alloc = d2->words; \
arg2._mp_size = (s2); \
arg2._mp_d = (unsigned long int *) (BYTE_ARR_CTS(d2)); \
\
/* Perform the operation */ \
STGCALL3(mp_fun,&result,&arg1,&arg2); \
\
- TICK_RET_UNBOXED_TUP(3); \
- RET_NNP(result._mp_alloc, \
- result._mp_size, \
- result._mp_d-sizeofW(StgArrWords)); \
+ TICK_RET_UNBOXED_TUP(2); \
+ RET_NP(result._mp_size, \
+ result._mp_d-sizeofW(StgArrWords)); \
+ FE_ \
+}
+
+#define GMP_TAKE1_RET1(name,mp_fun) \
+FN_(name) \
+{ \
+ MP_INT arg1, result; \
+ I_ s1; \
+ StgArrWords* d1; \
+ FB_ \
+ \
+ /* call doYouWantToGC() */ \
+ MAYBE_GC(R2_PTR, name); \
+ \
+ d1 = (StgArrWords *)R2.p; \
+ s1 = R1.i; \
+ \
+ arg1._mp_alloc = d1->words; \
+ arg1._mp_size = (s1); \
+ arg1._mp_d = (unsigned long int *) (BYTE_ARR_CTS(d1)); \
+ \
+ STGCALL1(mpz_init,&result); \
+ \
+ /* Perform the operation */ \
+ STGCALL2(mp_fun,&result,&arg1); \
+ \
+ TICK_RET_UNBOXED_TUP(2); \
+ RET_NP(result._mp_size, \
+ result._mp_d-sizeofW(StgArrWords)); \
FE_ \
}
FN_(name) \
{ \
MP_INT arg1, arg2, result1, result2; \
- I_ a1, s1, a2, s2; \
+ I_ s1, s2; \
StgArrWords* d1; \
StgArrWords* d2; \
FB_ \
\
/* call doYouWantToGC() */ \
- MAYBE_GC(R3_PTR | R6_PTR, name); \
+ MAYBE_GC(R2_PTR | R4_PTR, name); \
\
- a1 = R1.i; \
- s1 = R2.i; \
- d1 = stgCast(StgArrWords*,R3.p); \
- a2 = R4.i; \
- s2 = R5.i; \
- d2 = stgCast(StgArrWords*,R6.p); \
+ d1 = (StgArrWords *)R2.p; \
+ s1 = R1.i; \
+ d2 = (StgArrWords *)R4.p; \
+ s2 = R3.i; \
\
- arg1._mp_alloc = (a1); \
+ arg1._mp_alloc = d1->words; \
arg1._mp_size = (s1); \
arg1._mp_d = (unsigned long int *) (BYTE_ARR_CTS(d1)); \
- arg2._mp_alloc = (a2); \
+ arg2._mp_alloc = d2->words; \
arg2._mp_size = (s2); \
arg2._mp_d = (unsigned long int *) (BYTE_ARR_CTS(d2)); \
\
/* Perform the operation */ \
STGCALL4(mp_fun,&result1,&result2,&arg1,&arg2); \
\
- TICK_RET_UNBOXED_TUP(6); \
- RET_NNPNNP(result1._mp_alloc, \
- result1._mp_size, \
- result1._mp_d-sizeofW(StgArrWords), \
- result2._mp_alloc, \
- result2._mp_size, \
- result2._mp_d-sizeofW(StgArrWords)); \
+ TICK_RET_UNBOXED_TUP(4); \
+ RET_NPNP(result1._mp_size, \
+ result1._mp_d-sizeofW(StgArrWords), \
+ result2._mp_size, \
+ result2._mp_d-sizeofW(StgArrWords)); \
FE_ \
}
-GMP_TAKE2_RET1(plusIntegerZh_fast, mpz_add);
-GMP_TAKE2_RET1(minusIntegerZh_fast, mpz_sub);
-GMP_TAKE2_RET1(timesIntegerZh_fast, mpz_mul);
-GMP_TAKE2_RET1(gcdIntegerZh_fast, mpz_gcd);
-
-GMP_TAKE2_RET2(quotRemIntegerZh_fast, mpz_tdiv_qr);
-GMP_TAKE2_RET2(divModIntegerZh_fast, mpz_fdiv_qr);
-
-#ifndef FLOATS_AS_DOUBLES
-FN_(decodeFloatZh_fast)
+GMP_TAKE2_RET1(plusIntegerzh_fast, mpz_add);
+GMP_TAKE2_RET1(minusIntegerzh_fast, mpz_sub);
+GMP_TAKE2_RET1(timesIntegerzh_fast, mpz_mul);
+GMP_TAKE2_RET1(gcdIntegerzh_fast, mpz_gcd);
+GMP_TAKE2_RET1(quotIntegerzh_fast, mpz_tdiv_q);
+GMP_TAKE2_RET1(remIntegerzh_fast, mpz_tdiv_r);
+GMP_TAKE2_RET1(divExactIntegerzh_fast, mpz_divexact);
+GMP_TAKE2_RET1(andIntegerzh_fast, mpz_and);
+GMP_TAKE2_RET1(orIntegerzh_fast, mpz_ior);
+GMP_TAKE2_RET1(xorIntegerzh_fast, mpz_xor);
+GMP_TAKE1_RET1(complementIntegerzh_fast, mpz_com);
+
+GMP_TAKE2_RET2(quotRemIntegerzh_fast, mpz_tdiv_qr);
+GMP_TAKE2_RET2(divModIntegerzh_fast, mpz_fdiv_qr);
+
+FN_(decodeFloatzh_fast)
{
MP_INT mantissa;
I_ exponent;
/* arguments: F1 = Float# */
arg = F1;
- HP_CHK_GEN(sizeof(StgArrWords)+1, NO_PTRS, decodeFloatZh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+1, NO_PTRS, decodeFloatzh_fast,);
TICK_ALLOC_PRIM(sizeofW(StgArrWords),1,0);
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+1); /* ccs prof */
/* Be prepared to tell Lennart-coded __decodeFloat */
/* where mantissa._mp_d can be put (it does not care about the rest) */
- p = stgCast(StgArrWords*,Hp)-1;
- SET_ARR_HDR(p,&ARR_WORDS_info,CCCS,1)
+ p = (StgArrWords *)Hp - 1;
+ SET_ARR_HDR(p,&stg_ARR_WORDS_info,CCCS,1)
mantissa._mp_d = (void *)BYTE_ARR_CTS(p);
/* Perform the operation */
STGCALL3(__decodeFloat,&mantissa,&exponent,arg);
- /* returns: (R1 = Int# (expn), R2 = Int#, R3 = Int#, R4 = ByteArray#) */
- TICK_RET_UNBOXED_TUP(4);
- RET_NNNP(exponent,mantissa._mp_alloc,mantissa._mp_size,p);
+ /* returns: (Int# (expn), Int#, ByteArray#) */
+ TICK_RET_UNBOXED_TUP(3);
+ RET_NNP(exponent,mantissa._mp_size,p);
FE_
}
-#endif /* !FLOATS_AS_DOUBLES */
-#define DOUBLE_MANTISSA_SIZE (sizeof(StgDouble)/sizeof(W_))
-#define ARR_SIZE (sizeof(StgArrWords) + DOUBLE_MANTISSA_SIZE)
+#define DOUBLE_MANTISSA_SIZE (sizeofW(StgDouble))
+#define ARR_SIZE (sizeofW(StgArrWords) + DOUBLE_MANTISSA_SIZE)
-FN_(decodeDoubleZh_fast)
+FN_(decodeDoublezh_fast)
{ MP_INT mantissa;
I_ exponent;
StgDouble arg;
/* arguments: D1 = Double# */
arg = D1;
- HP_CHK_GEN(ARR_SIZE, NO_PTRS, decodeDoubleZh_fast,);
- TICK_ALLOC_PRIM(sizeof(StgArrWords),DOUBLE_MANTISSA_SIZE,0);
+ HP_CHK_GEN_TICKY(ARR_SIZE, NO_PTRS, decodeDoublezh_fast,);
+ TICK_ALLOC_PRIM(sizeofW(StgArrWords),DOUBLE_MANTISSA_SIZE,0);
CCS_ALLOC(CCCS,ARR_SIZE); /* ccs prof */
/* Be prepared to tell Lennart-coded __decodeDouble */
/* where mantissa.d can be put (it does not care about the rest) */
- p = stgCast(StgArrWords*,Hp-ARR_SIZE+1);
- SET_ARR_HDR(p, &ARR_WORDS_info, CCCS, DOUBLE_MANTISSA_SIZE);
+ p = (StgArrWords *)(Hp-ARR_SIZE+1);
+ SET_ARR_HDR(p, &stg_ARR_WORDS_info, CCCS, DOUBLE_MANTISSA_SIZE);
mantissa._mp_d = (void *)BYTE_ARR_CTS(p);
/* Perform the operation */
STGCALL3(__decodeDouble,&mantissa,&exponent,arg);
- /* returns: (R1 = Int# (expn), R2 = Int#, R3 = Int#, R4 = ByteArray#) */
- TICK_RET_UNBOXED_TUP(4);
- RET_NNNP(exponent,mantissa._mp_alloc,mantissa._mp_size,p);
+ /* returns: (Int# (expn), Int#, ByteArray#) */
+ TICK_RET_UNBOXED_TUP(3);
+ RET_NNP(exponent,mantissa._mp_size,p);
FE_
}
* Concurrency primitives
* -------------------------------------------------------------------------- */
-FN_(forkZh_fast)
+FN_(forkzh_fast)
{
FB_
/* args: R1 = closure to spark */
- if (closure_SHOULD_SPARK(stgCast(StgClosure*,R1.p))) {
+ MAYBE_GC(R1_PTR, forkzh_fast);
- MAYBE_GC(R1_PTR, forkZh_fast);
-
- /* create it right now, return ThreadID in R1 */
- R1.t = RET_STGCALL2(StgTSO *, createIOThread,
- RtsFlags.GcFlags.initialStkSize, R1.cl);
+ /* create it right now, return ThreadID in R1 */
+ R1.t = RET_STGCALL2(StgTSO *, createIOThread,
+ RtsFlags.GcFlags.initialStkSize, R1.cl);
+ STGCALL1(scheduleThread, R1.t);
- /* switch at the earliest opportunity */
- context_switch = 1;
- }
+ /* switch at the earliest opportunity */
+ context_switch = 1;
JMP_(ENTRY_CODE(Sp[0]));
FE_
}
-FN_(killThreadZh_fast)
+FN_(yieldzh_fast)
{
FB_
- /* args: R1.p = TSO to kill */
-
- /* The thread is dead, but the TSO sticks around for a while. That's why
- * we don't have to explicitly remove it from any queues it might be on.
- */
- STGCALL1(deleteThread, (StgTSO *)R1.p);
-
- /* We might have killed ourselves. In which case, better return to the
- * scheduler...
- */
- if ((StgTSO *)R1.p == CurrentTSO) {
- JMP_(stg_stop_thread_entry); /* leave semi-gracefully */
- }
-
- JMP_(ENTRY_CODE(Sp[0]));
+ JMP_(stg_yield_noregs);
FE_
}
-FN_(newMVarZh_fast)
+/* -----------------------------------------------------------------------------
+ * MVar primitives
+ *
+ * take & putMVar work as follows. Firstly, an important invariant:
+ *
+ * If the MVar is full, then the blocking queue contains only
+ * threads blocked on putMVar, and if the MVar is empty then the
+ * blocking queue contains only threads blocked on takeMVar.
+ *
+ * takeMvar:
+ * MVar empty : then add ourselves to the blocking queue
+ * MVar full : remove the value from the MVar, and
+ * blocking queue empty : return
+ * blocking queue non-empty : perform the first blocked putMVar
+ * from the queue, and wake up the
+ * thread (MVar is now full again)
+ *
+ * putMVar is just the dual of the above algorithm.
+ *
+ * How do we "perform a putMVar"? Well, we have to fiddle around with
+ * the stack of the thread waiting to do the putMVar. See
+ * stg_block_putmvar and stg_block_takemvar in HeapStackCheck.c for
+ * the stack layout, and the PerformPut and PerformTake macros below.
+ *
+ * It is important that a blocked take or put is woken up with the
+ * take/put already performed, because otherwise there would be a
+ * small window of vulnerability where the thread could receive an
+ * exception and never perform its take or put, and we'd end up with a
+ * deadlock.
+ *
+ * -------------------------------------------------------------------------- */
+
+FN_(newMVarzh_fast)
{
StgMVar *mvar;
FB_
/* args: none */
- HP_CHK_GEN(sizeofW(StgMVar), NO_PTRS, newMVarZh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgMVar), NO_PTRS, newMVarzh_fast,);
TICK_ALLOC_PRIM(sizeofW(StgMutVar)-1, // consider head,tail,link as admin wds
1, 0);
CCS_ALLOC(CCCS,sizeofW(StgMVar)); /* ccs prof */
mvar = (StgMVar *) (Hp - sizeofW(StgMVar) + 1);
- SET_INFO(mvar,&EMPTY_MVAR_info);
- mvar->head = mvar->tail = (StgTSO *)&END_TSO_QUEUE_closure;
- mvar->value = (StgClosure *)&END_TSO_QUEUE_closure;
+ SET_HDR(mvar,&stg_EMPTY_MVAR_info,CCCS);
+ mvar->head = mvar->tail = (StgTSO *)&stg_END_TSO_QUEUE_closure;
+ mvar->value = (StgClosure *)&stg_END_TSO_QUEUE_closure;
TICK_RET_UNBOXED_TUP(1);
RET_P(mvar);
FE_
}
-FN_(takeMVarZh_fast)
+#define PerformTake(tso, value) ({ \
+ (tso)->sp[1] = (W_)value; \
+ (tso)->sp[0] = (W_)&stg_gc_unpt_r1_ret_info; \
+ })
+
+#define PerformPut(tso) ({ \
+ StgClosure *val = (StgClosure *)(tso)->sp[2]; \
+ (tso)->sp[2] = (W_)&stg_gc_noregs_ret_info; \
+ (tso)->sp += 2; \
+ val; \
+ })
+
+FN_(takeMVarzh_fast)
{
StgMVar *mvar;
StgClosure *val;
+ const StgInfoTable *info;
FB_
/* args: R1 = MVar closure */
mvar = (StgMVar *)R1.p;
+#ifdef SMP
+ info = LOCK_CLOSURE(mvar);
+#else
+ info = GET_INFO(mvar);
+#endif
+
/* If the MVar is empty, put ourselves on its blocking queue,
* and wait until we're woken up.
*/
- if (GET_INFO(mvar) != &FULL_MVAR_info) {
- if (mvar->head == (StgTSO *)&END_TSO_QUEUE_closure) {
+ if (info == &stg_EMPTY_MVAR_info) {
+ if (mvar->head == (StgTSO *)&stg_END_TSO_QUEUE_closure) {
mvar->head = CurrentTSO;
} else {
mvar->tail->link = CurrentTSO;
}
- CurrentTSO->link = (StgTSO *)&END_TSO_QUEUE_closure;
+ CurrentTSO->link = (StgTSO *)&stg_END_TSO_QUEUE_closure;
+ CurrentTSO->why_blocked = BlockedOnMVar;
+ CurrentTSO->block_info.closure = (StgClosure *)mvar;
mvar->tail = CurrentTSO;
- BLOCK(R1_PTR, takeMVarZh_fast);
+#ifdef SMP
+ /* unlock the MVar */
+ mvar->header.info = &stg_EMPTY_MVAR_info;
+#endif
+ JMP_(stg_block_takemvar);
}
- SET_INFO(mvar,&EMPTY_MVAR_info);
+ /* we got the value... */
val = mvar->value;
- mvar->value = (StgClosure *)&END_TSO_QUEUE_closure;
- TICK_RET_UNBOXED_TUP(1);
- RET_P(val);
+ if (mvar->head != (StgTSO *)&stg_END_TSO_QUEUE_closure) {
+ /* There are putMVar(s) waiting...
+ * wake up the first thread on the queue
+ */
+ ASSERT(mvar->head->why_blocked == BlockedOnMVar);
+
+ /* actually perform the putMVar for the thread that we just woke up */
+ mvar->value = PerformPut(mvar->head);
+
+#if defined(GRAN) || defined(PAR)
+ /* ToDo: check 2nd arg (mvar) is right */
+ mvar->head = RET_STGCALL2(StgTSO *,unblockOne,mvar->head,mvar);
+#else
+ mvar->head = RET_STGCALL1(StgTSO *,unblockOne,mvar->head);
+#endif
+ if (mvar->head == (StgTSO *)&stg_END_TSO_QUEUE_closure) {
+ mvar->tail = (StgTSO *)&stg_END_TSO_QUEUE_closure;
+ }
+#ifdef SMP
+ /* unlock in the SMP case */
+ SET_INFO(mvar,&stg_FULL_MVAR_info);
+#endif
+ TICK_RET_UNBOXED_TUP(1);
+ RET_P(val);
+ } else {
+ /* No further putMVars, MVar is now empty */
+
+ /* do this last... we might have locked the MVar in the SMP case,
+ * and writing the info pointer will unlock it.
+ */
+ SET_INFO(mvar,&stg_EMPTY_MVAR_info);
+ mvar->value = (StgClosure *)&stg_END_TSO_QUEUE_closure;
+ TICK_RET_UNBOXED_TUP(1);
+ RET_P(val);
+ }
+ FE_
+}
+
+FN_(tryTakeMVarzh_fast)
+{
+ StgMVar *mvar;
+ StgClosure *val;
+ const StgInfoTable *info;
+
+ FB_
+ /* args: R1 = MVar closure */
+
+ mvar = (StgMVar *)R1.p;
+
+#ifdef SMP
+ info = LOCK_CLOSURE(mvar);
+#else
+ info = GET_INFO(mvar);
+#endif
+
+ if (info == &stg_EMPTY_MVAR_info) {
+
+#ifdef SMP
+ /* unlock the MVar */
+ SET_INFO(mvar,&stg_EMPTY_MVAR_info);
+#endif
+
+ /* HACK: we need a pointer to pass back,
+ * so we abuse NO_FINALIZER_closure
+ */
+ RET_NP(0, &stg_NO_FINALIZER_closure);
+ }
+
+ /* we got the value... */
+ val = mvar->value;
+
+ if (mvar->head != (StgTSO *)&stg_END_TSO_QUEUE_closure) {
+ /* There are putMVar(s) waiting...
+ * wake up the first thread on the queue
+ */
+ ASSERT(mvar->head->why_blocked == BlockedOnMVar);
+
+ /* actually perform the putMVar for the thread that we just woke up */
+ mvar->value = PerformPut(mvar->head);
+
+#if defined(GRAN) || defined(PAR)
+ /* ToDo: check 2nd arg (mvar) is right */
+ mvar->head = RET_STGCALL2(StgTSO *,unblockOne,mvar->head,mvar);
+#else
+ mvar->head = RET_STGCALL1(StgTSO *,unblockOne,mvar->head);
+#endif
+ if (mvar->head == (StgTSO *)&stg_END_TSO_QUEUE_closure) {
+ mvar->tail = (StgTSO *)&stg_END_TSO_QUEUE_closure;
+ }
+#ifdef SMP
+ /* unlock in the SMP case */
+ SET_INFO(mvar,&stg_FULL_MVAR_info);
+#endif
+ TICK_RET_UNBOXED_TUP(1);
+ RET_P(val);
+ } else {
+ /* No further putMVars, MVar is now empty */
+
+ /* do this last... we might have locked the MVar in the SMP case,
+ * and writing the info pointer will unlock it.
+ */
+ SET_INFO(mvar,&stg_EMPTY_MVAR_info);
+ mvar->value = (StgClosure *)&stg_END_TSO_QUEUE_closure;
+ TICK_RET_UNBOXED_TUP(1);
+ RET_P(val);
+ }
FE_
}
-FN_(putMVarZh_fast)
+FN_(putMVarzh_fast)
{
StgMVar *mvar;
- StgTSO *tso;
+ const StgInfoTable *info;
FB_
/* args: R1 = MVar, R2 = value */
mvar = (StgMVar *)R1.p;
- if (GET_INFO(mvar) == &FULL_MVAR_info) {
- fflush(stdout);
- fprintf(stderr, "putMVar#: MVar already full.\n");
- stg_exit(EXIT_FAILURE);
+
+#ifdef SMP
+ info = LOCK_CLOSURE(mvar);
+#else
+ info = GET_INFO(mvar);
+#endif
+
+ if (info == &stg_FULL_MVAR_info) {
+ if (mvar->head == (StgTSO *)&stg_END_TSO_QUEUE_closure) {
+ mvar->head = CurrentTSO;
+ } else {
+ mvar->tail->link = CurrentTSO;
+ }
+ CurrentTSO->link = (StgTSO *)&stg_END_TSO_QUEUE_closure;
+ CurrentTSO->why_blocked = BlockedOnMVar;
+ CurrentTSO->block_info.closure = (StgClosure *)mvar;
+ mvar->tail = CurrentTSO;
+
+#ifdef SMP
+ /* unlock the MVar */
+ SET_INFO(mvar,&stg_FULL_MVAR_info);
+#endif
+ JMP_(stg_block_putmvar);
}
- SET_INFO(mvar,&FULL_MVAR_info);
- mvar->value = R2.cl;
+ if (mvar->head != (StgTSO *)&stg_END_TSO_QUEUE_closure) {
+ /* There are takeMVar(s) waiting: wake up the first one
+ */
+ ASSERT(mvar->head->why_blocked == BlockedOnMVar);
- /* wake up the first thread on the queue,
- * it will continue with the takeMVar operation and mark the MVar
- * empty again.
- */
- tso = mvar->head;
- if (tso != (StgTSO *)&END_TSO_QUEUE_closure) {
- PUSH_ON_RUN_QUEUE(tso);
- mvar->head = tso->link;
- tso->link = (StgTSO *)&END_TSO_QUEUE_closure;
- if (mvar->head == (StgTSO *)&END_TSO_QUEUE_closure) {
- mvar->tail = (StgTSO *)&END_TSO_QUEUE_closure;
- }
+ /* actually perform the takeMVar */
+ PerformTake(mvar->head, R2.cl);
+
+#if defined(GRAN) || defined(PAR)
+ /* ToDo: check 2nd arg (mvar) is right */
+ mvar->head = RET_STGCALL2(StgTSO *,unblockOne,mvar->head,mvar);
+#else
+ mvar->head = RET_STGCALL1(StgTSO *,unblockOne,mvar->head);
+#endif
+ if (mvar->head == (StgTSO *)&stg_END_TSO_QUEUE_closure) {
+ mvar->tail = (StgTSO *)&stg_END_TSO_QUEUE_closure;
+ }
+#ifdef SMP
+ /* unlocks the MVar in the SMP case */
+ SET_INFO(mvar,&stg_EMPTY_MVAR_info);
+#endif
+ JMP_(ENTRY_CODE(Sp[0]));
+ } else {
+ /* No further takes, the MVar is now full. */
+ mvar->value = R2.cl;
+ /* unlocks the MVar in the SMP case */
+ SET_INFO(mvar,&stg_FULL_MVAR_info);
+ JMP_(ENTRY_CODE(Sp[0]));
}
- /* ToDo: yield here for better communication performance? */
- JMP_(ENTRY_CODE(Sp[0]));
+ /* ToDo: yield afterward for better communication performance? */
+ FE_
+}
+
+FN_(tryPutMVarzh_fast)
+{
+ StgMVar *mvar;
+ const StgInfoTable *info;
+
+ FB_
+ /* args: R1 = MVar, R2 = value */
+
+ mvar = (StgMVar *)R1.p;
+
+#ifdef SMP
+ info = LOCK_CLOSURE(mvar);
+#else
+ info = GET_INFO(mvar);
+#endif
+
+ if (info == &stg_FULL_MVAR_info) {
+
+#ifdef SMP
+ /* unlock the MVar */
+ mvar->header.info = &stg_FULL_MVAR_info;
+#endif
+
+ RET_N(0);
+ }
+
+ if (mvar->head != (StgTSO *)&stg_END_TSO_QUEUE_closure) {
+ /* There are takeMVar(s) waiting: wake up the first one
+ */
+ ASSERT(mvar->head->why_blocked == BlockedOnMVar);
+
+ /* actually perform the takeMVar */
+ PerformTake(mvar->head, R2.cl);
+
+#if defined(GRAN) || defined(PAR)
+ /* ToDo: check 2nd arg (mvar) is right */
+ mvar->head = RET_STGCALL2(StgTSO *,unblockOne,mvar->head,mvar);
+#else
+ mvar->head = RET_STGCALL1(StgTSO *,unblockOne,mvar->head);
+#endif
+ if (mvar->head == (StgTSO *)&stg_END_TSO_QUEUE_closure) {
+ mvar->tail = (StgTSO *)&stg_END_TSO_QUEUE_closure;
+ }
+#ifdef SMP
+ /* unlocks the MVar in the SMP case */
+ SET_INFO(mvar,&stg_EMPTY_MVAR_info);
+#endif
+ JMP_(ENTRY_CODE(Sp[0]));
+ } else {
+ /* No further takes, the MVar is now full. */
+ mvar->value = R2.cl;
+ /* unlocks the MVar in the SMP case */
+ SET_INFO(mvar,&stg_FULL_MVAR_info);
+ JMP_(ENTRY_CODE(Sp[0]));
+ }
+
+ /* ToDo: yield afterward for better communication performance? */
FE_
}
Stable pointer primitives
------------------------------------------------------------------------- */
-FN_(makeStablePtrZh_fast)
+FN_(makeStableNamezh_fast)
+{
+ StgWord index;
+ StgStableName *sn_obj;
+ FB_
+
+ HP_CHK_GEN_TICKY(sizeofW(StgStableName), R1_PTR, makeStableNamezh_fast,);
+ TICK_ALLOC_PRIM(sizeofW(StgHeader),
+ sizeofW(StgStableName)-sizeofW(StgHeader), 0);
+ CCS_ALLOC(CCCS,sizeofW(StgStableName)); /* ccs prof */
+
+ index = RET_STGCALL1(StgWord,lookupStableName,R1.p);
+
+ /* Is there already a StableName for this heap object? */
+ if (stable_ptr_table[index].sn_obj == NULL) {
+ sn_obj = (StgStableName *) (Hp - sizeofW(StgStableName) + 1);
+ SET_HDR(sn_obj,&stg_STABLE_NAME_info,CCCS);
+ sn_obj->sn = index;
+ stable_ptr_table[index].sn_obj = (StgClosure *)sn_obj;
+ } else {
+ (StgClosure *)sn_obj = stable_ptr_table[index].sn_obj;
+ }
+
+ TICK_RET_UNBOXED_TUP(1);
+ RET_P(sn_obj);
+}
+
+/* -----------------------------------------------------------------------------
+ Bytecode object primitives
+ ------------------------------------------------------------------------- */
+
+FN_(newBCOzh_fast)
+{
+ /* R1.p = instrs
+ R2.p = literals
+ R3.p = ptrs
+ R4.p = itbls
+ */
+ StgBCO *bco;
+ FB_
+
+ HP_CHK_GEN_TICKY(sizeofW(StgBCO),R1_PTR|R2_PTR|R3_PTR|R4_PTR, newBCOzh_fast,);
+ TICK_ALLOC_PRIM(sizeofW(StgHeader), sizeofW(StgBCO)-sizeofW(StgHeader), 0);
+ CCS_ALLOC(CCCS,sizeofW(StgBCO)); /* ccs prof */
+ bco = (StgBCO *) (Hp + 1 - sizeofW(StgBCO));
+ SET_HDR(bco, &stg_BCO_info, CCCS);
+
+ bco->instrs = (StgArrWords*)R1.cl;
+ bco->literals = (StgArrWords*)R2.cl;
+ bco->ptrs = (StgMutArrPtrs*)R3.cl;
+ bco->itbls = (StgArrWords*)R4.cl;
+
+ TICK_RET_UNBOXED_TUP(1);
+ RET_P(bco);
+ FE_
+}
+
+FN_(mkApUpd0zh_fast)
{
- StgInt stable_ptr;
- FB_
+ /* R1.p = the fn for the AP_UPD
+ */
+ StgAP_UPD* ap;
+ FB_
+ HP_CHK_GEN_TICKY(AP_sizeW(0), R1_PTR, mkApUpd0zh_fast,);
+ TICK_ALLOC_PRIM(sizeofW(StgHeader), AP_sizeW(0)-sizeofW(StgHeader), 0);
+ CCS_ALLOC(CCCS,AP_sizeW(0)); /* ccs prof */
+ ap = (StgAP_UPD *) (Hp + 1 - AP_sizeW(0));
+ SET_HDR(ap, &stg_AP_UPD_info, CCCS);
+
+ ap->n_args = 0;
+ ap->fun = R1.cl;
- if (stable_ptr_free == NULL) {
- enlargeStablePtrTable();
+ TICK_RET_UNBOXED_TUP(1);
+ RET_P(ap);
+ FE_
+}
+
+/* -----------------------------------------------------------------------------
+ Thread I/O blocking primitives
+ -------------------------------------------------------------------------- */
+
+FN_(waitReadzh_fast)
+{
+ FB_
+ /* args: R1.i */
+ ASSERT(CurrentTSO->why_blocked == NotBlocked);
+ CurrentTSO->why_blocked = BlockedOnRead;
+ CurrentTSO->block_info.fd = R1.i;
+ ACQUIRE_LOCK(&sched_mutex);
+ APPEND_TO_BLOCKED_QUEUE(CurrentTSO);
+ RELEASE_LOCK(&sched_mutex);
+ JMP_(stg_block_noregs);
+ FE_
+}
+
+FN_(waitWritezh_fast)
+{
+ FB_
+ /* args: R1.i */
+ ASSERT(CurrentTSO->why_blocked == NotBlocked);
+ CurrentTSO->why_blocked = BlockedOnWrite;
+ CurrentTSO->block_info.fd = R1.i;
+ ACQUIRE_LOCK(&sched_mutex);
+ APPEND_TO_BLOCKED_QUEUE(CurrentTSO);
+ RELEASE_LOCK(&sched_mutex);
+ JMP_(stg_block_noregs);
+ FE_
+}
+
+FN_(delayzh_fast)
+{
+ StgTSO *t, *prev;
+ nat target;
+ FB_
+ /* args: R1.i */
+ ASSERT(CurrentTSO->why_blocked == NotBlocked);
+ CurrentTSO->why_blocked = BlockedOnDelay;
+
+ ACQUIRE_LOCK(&sched_mutex);
+
+ target = (R1.i / (TICK_MILLISECS*1000)) + getourtimeofday();
+ CurrentTSO->block_info.target = target;
+
+ /* Insert the new thread in the sleeping queue. */
+ prev = NULL;
+ t = sleeping_queue;
+ while (t != END_TSO_QUEUE && t->block_info.target < target) {
+ prev = t;
+ t = t->link;
}
- stable_ptr = stable_ptr_free - stable_ptr_table;
- (P_)stable_ptr_free = *stable_ptr_free;
- stable_ptr_table[stable_ptr] = R1.p;
+ CurrentTSO->link = t;
+ if (prev == NULL) {
+ sleeping_queue = CurrentTSO;
+ } else {
+ prev->link = CurrentTSO;
+ }
- R1.i = stable_ptr;
- JMP_(ENTRY_CODE(Sp[0]));
+ RELEASE_LOCK(&sched_mutex);
+ JMP_(stg_block_noregs);
FE_
}
-#endif /* COMPILER */