/* -----------------------------------------------------------------------------
- * $Id: PrimOps.hc,v 1.53 2000/08/07 23:37:23 qrczak Exp $
+ * $Id: PrimOps.hc,v 1.95 2002/04/10 11:43:45 stolz Exp $
*
* (c) The GHC Team, 1998-2000
*
*
* ---------------------------------------------------------------------------*/
+#include "Stg.h"
#include "Rts.h"
#include "RtsFlags.h"
#include "Storage.h"
#include "BlockAlloc.h" /* tmp */
#include "StablePriv.h"
-#include "HeapStackCheck.h"
#include "StgRun.h"
#include "Itimer.h"
#include "Prelude.h"
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];
-
-
+StgWord GHC_ZCCCallable_static_info[1];
+StgWord GHC_ZCCReturnable_static_info[1];
+
/* -----------------------------------------------------------------------------
Macros for Hand-written 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, &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, 1)
-/* Char arrays really contain only 8-bit bytes for compatibility. */
-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)
{
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;
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);
/* -----------------------------------------------------------------------------
Foreign Object Primitives
-
-------------------------------------------------------------------------- */
-#ifndef PAR
FN_(mkForeignObjzh_fast)
{
/* R1.p = ptr to foreign object,
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,&MUT_ARR_PTRS_info);
+ SET_INFO((StgClosure *)R1.cl,&stg_MUT_ARR_PTRS_info);
recordMutable((StgMutClosure*)R1.cl);
TICK_RET_UNBOXED_TUP(1);
Weak Pointer Primitives
-------------------------------------------------------------------------- */
-#ifndef PAR
-
FN_(mkWeakzh_fast)
{
/* R1.p = key
FB_
if (R3.cl == NULL) {
- R3.cl = &NO_FINALIZER_closure;
+ R3.cl = &stg_NO_FINALIZER_closure;
}
HP_CHK_GEN_TICKY(sizeofW(StgWeak),R1_PTR|R2_PTR|R3_PTR, mkWeakzh_fast,);
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 = (StgDeadWeak *)R1.p;
/* already dead? */
- if (w->header.info == &DEAD_WEAK_info) {
- RET_NP(0,&NO_FINALIZER_closure);
+ if (w->header.info == &stg_DEAD_WEAK_info) {
+ RET_NP(0,&stg_NO_FINALIZER_closure);
}
/* kill it */
- w->header.info = &DEAD_WEAK_info;
+#ifdef PROFILING
+ // @LDV profiling
+ // A weak pointer is inherently used, so we do not need to call
+ // LDV_recordDead_FILL_SLOP_DYNAMIC():
+ // LDV_recordDead_FILL_SLOP_DYNAMIC((StgClosure *)w);
+ // or, LDV_recordDead():
+ // LDV_recordDead((StgClosure *)w, sizeofW(StgWeak) - sizeofW(StgProfHeader));
+ // Furthermore, when PROFILING is turned on, dead weak pointers are exactly as
+ // large as weak pointers, so there is no need to fill the slop, either.
+ // See stg_DEAD_WEAK_info in StgMiscClosures.hc.
+#endif
+ //
+ // Todo: maybe use SET_HDR() and remove LDV_recordCreate()?
+ //
+ w->header.info = &stg_DEAD_WEAK_info;
+#ifdef PROFILING
+ // @LDV profiling
+ LDV_recordCreate((StgClosure *)w);
+#endif
f = ((StgWeak *)w)->finalizer;
w->link = ((StgWeak *)w)->link;
/* return the finalizer */
- if (f == &NO_FINALIZER_closure) {
- RET_NP(0,&NO_FINALIZER_closure);
+ if (f == &stg_NO_FINALIZER_closure) {
+ RET_NP(0,&stg_NO_FINALIZER_closure);
} else {
RET_NP(1,f);
}
FE_
}
-#endif /* !PAR */
+FN_(deRefWeakzh_fast)
+{
+ /* R1.p = weak ptr */
+ StgWeak* w;
+ I_ code;
+ P_ val;
+ FB_
+ w = (StgWeak*)R1.p;
+ if (w->header.info == &stg_WEAK_info) {
+ code = 1;
+ val = (P_)((StgWeak *)w)->value;
+ } else {
+ code = 0;
+ val = (P_)w;
+ }
+ RET_NP(code,val);
+ FE_
+}
/* -----------------------------------------------------------------------------
Arbitrary-precision Integer operations.
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+1); /* ccs prof */
p = (StgArrWords *)Hp - 1;
- SET_ARR_HDR(p, &ARR_WORDS_info, CCCS, 1);
+ SET_ARR_HDR(p, &stg_ARR_WORDS_info, CCCS, 1);
/* mpz_set_si is inlined here, makes things simpler */
if (val < 0) {
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+1); /* ccs prof */
p = (StgArrWords *)Hp - 1;
- SET_ARR_HDR(p, &ARR_WORDS_info, CCCS, 1);
+ SET_ARR_HDR(p, &stg_ARR_WORDS_info, CCCS, 1);
if (val != 0) {
s = 1;
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();
-
- /* returns (# size :: Int#,
- data :: ByteArray#
- #)
- */
- TICK_RET_UNBOXED_TUP(2);
- RET_NP(result._mp_size,
- result._mp_d - sizeofW(StgArrWords));
- FE_
-}
/*
* 'long long' primops for converting to/from Integers.
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+words_needed); /* ccs prof */
p = (StgArrWords *)(Hp-words_needed+1) - 1;
- SET_ARR_HDR(p, &ARR_WORDS_info, CCCS, words_needed);
+ SET_ARR_HDR(p, &stg_ARR_WORDS_info, CCCS, words_needed);
if ( val < 0LL ) {
neg = 1;
val = -val;
- }
+ }
hi = (W_)((LW_)val / 0x100000000ULL);
if ( words_needed == 2 ) {
- s = 2;
+ s = 2;
Hp[-1] = (W_)val;
Hp[0] = hi;
} else if ( val != 0 ) {
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+words_needed); /* ccs prof */
p = (StgArrWords *)(Hp-words_needed+1) - 1;
- SET_ARR_HDR(p, &ARR_WORDS_info, CCCS, words_needed);
+ SET_ARR_HDR(p, &stg_ARR_WORDS_info, CCCS, words_needed);
hi = (W_)((LW_)val / 0x100000000ULL);
if ( val >= 0x100000000ULL ) {
}
-#endif /* HAVE_LONG_LONG */
+#endif /* SUPPORT_LONG_LONGS */
/* ToDo: this is shockingly inefficient */
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_ \
+}
+
#define GMP_TAKE2_RET2(name,mp_fun) \
FN_(name) \
{ \
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);
-#ifndef FLOATS_AS_DOUBLES
+
+FN_(gcdIntzh_fast)
+{
+ /* R1 = the first Int#; R2 = the second Int# */
+ mp_limb_t aa;
+ I_ r;
+ FB_
+ aa = (mp_limb_t)(R1.i);
+ r = RET_STGCALL3(StgInt, mpn_gcd_1, (mp_limb_t *)(&aa), 1, (mp_limb_t)(R2.i));
+
+ R1.i = r;
+ /* Result parked in R1, return via info-pointer at TOS */
+ JMP_(ENTRY_CODE(Sp[0]));
+ FE_
+}
+
+FN_(gcdIntegerIntzh_fast)
+{
+ /* R1 = s1; R2 = d1; R3 = the int */
+ I_ r;
+ FB_
+ r = RET_STGCALL3(StgInt,mpn_gcd_1,(mp_limb_t *)(BYTE_ARR_CTS(R2.p)), R1.i, R3.i);
+
+ R1.i = r;
+ /* Result parked in R1, return via info-pointer at TOS */
+ JMP_(ENTRY_CODE(Sp[0]));
+ FE_
+}
+
+FN_(cmpIntegerIntzh_fast)
+{
+ /* R1 = s1; R2 = d1; R3 = the int */
+ I_ usize;
+ I_ vsize;
+ I_ v_digit;
+ mp_limb_t u_digit;
+ FB_
+
+ usize = R1.i;
+ vsize = 0;
+ v_digit = R3.i;
+
+ // paraphrased from mpz_cmp_si() in the GMP sources
+ if (v_digit > 0) {
+ vsize = 1;
+ } else if (v_digit < 0) {
+ vsize = -1;
+ v_digit = -v_digit;
+ }
+
+ if (usize != vsize) {
+ R1.i = usize - vsize; JMP_(ENTRY_CODE(Sp[0]));
+ }
+
+ if (usize == 0) {
+ R1.i = 0; JMP_(ENTRY_CODE(Sp[0]));
+ }
+
+ u_digit = *(mp_limb_t *)(BYTE_ARR_CTS(R2.p));
+
+ if (u_digit == (mp_limb_t) (unsigned long) v_digit) {
+ R1.i = 0; JMP_(ENTRY_CODE(Sp[0]));
+ }
+
+ if (u_digit > (mp_limb_t) (unsigned long) v_digit) {
+ R1.i = usize;
+ } else {
+ R1.i = -usize;
+ }
+
+ JMP_(ENTRY_CODE(Sp[0]));
+ FE_
+}
+
+FN_(cmpIntegerzh_fast)
+{
+ /* R1 = s1; R2 = d1; R3 = s2; R4 = d2 */
+ I_ usize;
+ I_ vsize;
+ I_ size;
+ StgPtr up, vp;
+ int cmp;
+ FB_
+
+ // paraphrased from mpz_cmp() in the GMP sources
+ usize = R1.i;
+ vsize = R3.i;
+
+ if (usize != vsize) {
+ R1.i = usize - vsize; JMP_(ENTRY_CODE(Sp[0]));
+ }
+
+ if (usize == 0) {
+ R1.i = 0; JMP_(ENTRY_CODE(Sp[0]));
+ }
+
+ size = abs(usize);
+
+ up = BYTE_ARR_CTS(R2.p);
+ vp = BYTE_ARR_CTS(R4.p);
+
+ cmp = RET_STGCALL3(I_, mpn_cmp, (mp_limb_t *)up, (mp_limb_t *)vp, size);
+
+ if (cmp == 0) {
+ R1.i = 0; JMP_(ENTRY_CODE(Sp[0]));
+ }
+
+ if ((cmp < 0) == (usize < 0)) {
+ R1.i = 1;
+ } else {
+ R1.i = (-1);
+ }
+ /* Result parked in R1, return via info-pointer at TOS */
+ JMP_(ENTRY_CODE(Sp[0]));
+ FE_
+}
+
+FN_(integer2Intzh_fast)
+{
+ /* R1 = s; R2 = d */
+ I_ r, s;
+ FB_
+ s = R1.i;
+ if (s == 0)
+ r = 0;
+ else {
+ r = ((mp_limb_t *) (BYTE_ARR_CTS(R2.p)))[0];
+ if (s < 0) r = -r;
+ }
+ /* Result parked in R1, return via info-pointer at TOS */
+ R1.i = r;
+ JMP_(ENTRY_CODE(Sp[0]));
+ FE_
+}
+
+FN_(integer2Wordzh_fast)
+{
+ /* R1 = s; R2 = d */
+ I_ s;
+ W_ r;
+ FB_
+ s = R1.i;
+ if (s == 0)
+ r = 0;
+ else {
+ r = ((mp_limb_t *) (BYTE_ARR_CTS(R2.p)))[0];
+ if (s < 0) r = -r;
+ }
+ /* Result parked in R1, return via info-pointer at TOS */
+ R1.w = r;
+ JMP_(ENTRY_CODE(Sp[0]));
+ FE_
+}
+
+
FN_(decodeFloatzh_fast)
{
MP_INT mantissa;
/* Be prepared to tell Lennart-coded __decodeFloat */
/* where mantissa._mp_d can be put (it does not care about the rest) */
p = (StgArrWords *)Hp - 1;
- SET_ARR_HDR(p,&ARR_WORDS_info,CCCS,1)
+ SET_ARR_HDR(p,&stg_ARR_WORDS_info,CCCS,1)
mantissa._mp_d = (void *)BYTE_ARR_CTS(p);
/* Perform the operation */
RET_NNP(exponent,mantissa._mp_size,p);
FE_
}
-#endif /* !FLOATS_AS_DOUBLES */
#define DOUBLE_MANTISSA_SIZE (sizeofW(StgDouble))
#define ARR_SIZE (sizeofW(StgArrWords) + DOUBLE_MANTISSA_SIZE)
/* Be prepared to tell Lennart-coded __decodeDouble */
/* where mantissa.d can be put (it does not care about the rest) */
p = (StgArrWords *)(Hp-ARR_SIZE+1);
- SET_ARR_HDR(p, &ARR_WORDS_info, CCCS, DOUBLE_MANTISSA_SIZE);
+ SET_ARR_HDR(p, &stg_ARR_WORDS_info, CCCS, DOUBLE_MANTISSA_SIZE);
mantissa._mp_d = (void *)BYTE_ARR_CTS(p);
/* Perform the operation */
/* create it right now, return ThreadID in R1 */
R1.t = RET_STGCALL2(StgTSO *, createIOThread,
- RtsFlags.GcFlags.initialStkSize, R1.cl);
+ RtsFlags.GcFlags.initialStkSize, R1.cl);
STGCALL1(scheduleThread, R1.t);
/* switch at the earliest opportunity */
context_switch = 1;
+ RET_P(R1.t);
+ FE_
+}
+
+FN_(forkProcesszh_fast)
+{
+ pid_t pid;
+
+ FB_
+ /* args: none */
+ /* result: Pid */
+
+ R1.i = RET_STGCALL1(StgInt, forkProcess, CurrentTSO);
+
JMP_(ENTRY_CODE(Sp[0]));
+
FE_
}
FE_
}
+FN_(myThreadIdzh_fast)
+{
+ /* no args. */
+ FB_
+ RET_P((P_)CurrentTSO);
+ FE_
+}
+
+FN_(labelThreadzh_fast)
+{
+ FB_
+ /* args: R1.p = Addr# */
+#ifdef DEBUG
+ STGCALL2(labelThread,CurrentTSO,(char *)R1.p);
+#endif
+ FE_
+}
+
+
+/* -----------------------------------------------------------------------------
+ * 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_(isEmptyMVarzh_fast)
+{
+ /* args: R1 = MVar closure */
+ I_ r;
+ FB_
+ r = (I_)((GET_INFO((StgMVar*)(R1.p))) == &stg_EMPTY_MVAR_info);
+ RET_N(r);
+ FE_
+}
+
+
FN_(newMVarzh_fast)
{
StgMVar *mvar;
CCS_ALLOC(CCCS,sizeofW(StgMVar)); /* ccs prof */
mvar = (StgMVar *) (Hp - sizeofW(StgMVar) + 1);
- SET_HDR(mvar,&EMPTY_MVAR_info,CCCS);
- 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_
}
+/* If R1 isn't available, pass it on the stack */
+#ifdef REG_R1
+#define PerformTake(tso, value) ({ \
+ (tso)->sp[1] = (W_)value; \
+ (tso)->sp[0] = (W_)&stg_gc_unpt_r1_info; \
+ })
+#else
+#define PerformTake(tso, value) ({ \
+ (tso)->sp[1] = (W_)value; \
+ (tso)->sp[0] = (W_)&stg_ut_1_0_unreg_info; \
+ })
+#endif
+
+
+#define PerformPut(tso) ({ \
+ StgClosure *val = (StgClosure *)(tso)->sp[2]; \
+ (tso)->sp[2] = (W_)&stg_gc_noregs_info; \
+ (tso)->sp += 2; \
+ val; \
+ })
+
FN_(takeMVarzh_fast)
{
StgMVar *mvar;
/* If the MVar is empty, put ourselves on its blocking queue,
* and wait until we're woken up.
*/
- if (info == &EMPTY_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;
#ifdef SMP
/* unlock the MVar */
- mvar->header.info = &EMPTY_MVAR_info;
+ mvar->header.info = &stg_EMPTY_MVAR_info;
#endif
- BLOCK(R1_PTR, takeMVarzh_fast);
+ JMP_(stg_block_takemvar);
}
+ /* we got the value... */
val = mvar->value;
- mvar->value = (StgClosure *)&END_TSO_QUEUE_closure;
- /* do this last... we might have locked the MVar in the SMP case,
- * and writing the info pointer will unlock it.
- */
- SET_INFO(mvar,&EMPTY_MVAR_info);
+ 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);
- TICK_RET_UNBOXED_TUP(1);
- RET_P(val);
+ /* 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_
}
info = GET_INFO(mvar);
#endif
- if (info == &EMPTY_MVAR_info) {
+ if (info == &stg_EMPTY_MVAR_info) {
#ifdef SMP
- /* unlock the MVar */
- mvar->header.info = &EMPTY_MVAR_info;
+ /* 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, &NO_FINALIZER_closure);
+ /* 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;
- mvar->value = (StgClosure *)&END_TSO_QUEUE_closure;
- /* do this last... we might have locked the MVar in the SMP case,
- * and writing the info pointer will unlock it.
- */
- SET_INFO(mvar,&EMPTY_MVAR_info);
+ 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
+ } else {
+ /* No further putMVars, MVar is now empty */
+ mvar->value = (StgClosure *)&stg_END_TSO_QUEUE_closure;
+
+ /* 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);
+ }
TICK_RET_UNBOXED_TUP(1);
- RET_NP(1,val);
+ RET_NP((I_)1, val);
FE_
}
info = GET_INFO(mvar);
#endif
- if (info == &FULL_MVAR_info) {
-#ifdef INTERPRETER
- fprintf(stderr, "fatal: put on a full MVar in Hugs; aborting\n" );
- exit(1);
-#else
- R1.cl = (StgClosure *)PutFullMVar_closure;
- JMP_(raisezh_fast);
+ 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);
}
- 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.
- */
- if (mvar->head != (StgTSO *)&END_TSO_QUEUE_closure) {
- ASSERT(mvar->head->why_blocked == BlockedOnMVar);
-#if defined(GRAN)
- mvar->head = RET_STGCALL2(StgTSO *,unblockOne,mvar->head,mvar);
-#elif defined(PAR)
- // ToDo: check 2nd arg (mvar) is right
- mvar->head = RET_STGCALL2(StgTSO *,unblockOne,mvar->head,mvar);
+ /* 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);
+ mvar->head = RET_STGCALL1(StgTSO *,unblockOne,mvar->head);
#endif
- if (mvar->head == (StgTSO *)&END_TSO_QUEUE_closure) {
- mvar->tail = (StgTSO *)&END_TSO_QUEUE_closure;
- }
+ 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]));
}
- /* unlocks the MVar in the SMP case */
- SET_INFO(mvar,&FULL_MVAR_info);
+ /* ToDo: yield afterward for better communication performance? */
+ FE_
+}
- /* ToDo: yield here for better communication performance? */
- JMP_(ENTRY_CODE(Sp[0]));
+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_
}
/* Is there already a StableName for this heap object? */
if (stable_ptr_table[index].sn_obj == NULL) {
sn_obj = (StgStableName *) (Hp - sizeofW(StgStableName) + 1);
- sn_obj->header.info = &STABLE_NAME_info;
+ SET_HDR(sn_obj,&stg_STABLE_NAME_info,CCCS);
sn_obj->sn = index;
stable_ptr_table[index].sn_obj = (StgClosure *)sn_obj;
} else {
RET_P(sn_obj);
}
+
+FN_(makeStablePtrzh_fast)
+{
+ /* Args: R1 = a */
+ StgStablePtr sp;
+ FB_
+ MAYBE_GC(R1_PTR, makeStablePtrzh_fast);
+ sp = RET_STGCALL1(StgStablePtr,getStablePtr,R1.p);
+ RET_N(sp);
+ FE_
+}
+
+FN_(deRefStablePtrzh_fast)
+{
+ /* Args: R1 = the stable ptr */
+ P_ r;
+ StgStablePtr sp;
+ FB_
+ sp = (StgStablePtr)R1.w;
+ r = stable_ptr_table[(StgWord)sp].addr;
+ RET_P(r);
+ FE_
+}
+
+/* -----------------------------------------------------------------------------
+ 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)
+{
+ /* 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;
+
+ TICK_RET_UNBOXED_TUP(1);
+ RET_P(ap);
+ FE_
+}
+
/* -----------------------------------------------------------------------------
Thread I/O blocking primitives
-------------------------------------------------------------------------- */
FN_(delayzh_fast)
{
+ StgTSO *t, *prev;
+ nat target;
FB_
/* args: R1.i */
ASSERT(CurrentTSO->why_blocked == NotBlocked);
ACQUIRE_LOCK(&sched_mutex);
- /* Add on ticks_since_select, since these will be subtracted at
- * the next awaitEvent call.
- */
-#if defined(HAVE_SETITIMER) || defined(mingw32_TARGET_OS)
- CurrentTSO->block_info.delay = R1.i + ticks_since_select;
-#else
- CurrentTSO->block_info.target = R1.i + getourtimeofday();
-#endif
+ target = (R1.i / (TICK_MILLISECS*1000)) + getourtimeofday();
+ CurrentTSO->block_info.target = target;
- APPEND_TO_BLOCKED_QUEUE(CurrentTSO);
+ /* 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;
+ }
+
+ CurrentTSO->link = t;
+ if (prev == NULL) {
+ sleeping_queue = CurrentTSO;
+ } else {
+ prev->link = CurrentTSO;
+ }
RELEASE_LOCK(&sched_mutex);
JMP_(stg_block_noregs);
FE_
}
-
projects / ghc-hetmet.git / blobdiff