This commit was generated by cvs2svn to compensate for changes in r4,
which included commits to RCS files with non-trunk default branches. git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@5 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
This commit is contained in:
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949
C/grow.c
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949
C/grow.c
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@@ -0,0 +1,949 @@
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/*************************************************************************
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* *
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* YAP Prolog *
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* *
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* Yap Prolog was developed at NCCUP - Universidade do Porto *
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* *
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||||
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
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* *
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**************************************************************************
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* *
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* File: grow.c *
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* Last rev: Thu Feb 23 1989 vv *
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* mods: *
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* comments: Shifting the stacks *
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* *
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*************************************************************************/
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#include "Yap.h"
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#include "Yatom.h"
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||||
#include "Heap.h"
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#include "yapio.h"
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#include "alloc.h"
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||||
#include "sshift.h"
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||||
#include "compile.h"
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||||
#if HAVE_STRING_H
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#include <string.h>
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#endif
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static int heap_overflows = 0;
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static Int total_heap_overflow_time = 0;
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||||
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||||
int stack_overflows = 0;
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||||
static Int total_stack_overflow_time = 0;
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||||
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||||
int delay_overflows = 0;
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||||
static Int total_delay_overflow_time = 0;
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||||
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static int trail_overflows = 0;
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static Int total_trail_overflow_time = 0;
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||||
STATIC_PROTO(Int p_growheap, (void));
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STATIC_PROTO(Int p_growstack, (void));
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STATIC_PROTO(Int p_inform_trail_overflows, (void));
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STATIC_PROTO(Int p_inform_heap_overflows, (void));
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||||
STATIC_PROTO(Int p_inform_stack_overflows, (void));
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||||
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||||
/* #define undf7 */
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||||
/* #define undf5 */
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||||
STATIC_PROTO(void MoveGlobal, (void));
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STATIC_PROTO(void MoveLocalAndTrail, (void));
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STATIC_PROTO(void SetHeapRegs, (void));
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STATIC_PROTO(void SetStackRegs, (void));
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STATIC_PROTO(void AdjustTrail, (int));
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STATIC_PROTO(void AdjustLocal, (void));
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STATIC_PROTO(void AdjustGlobal, (void));
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STATIC_PROTO(void AdjustGrowStack, (void));
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STATIC_PROTO(int local_growheap, (long,int));
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STATIC_PROTO(void cpcellsd, (CELL *, CELL *, CELL));
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STATIC_PROTO(CELL AdjustAppl, (CELL));
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STATIC_PROTO(CELL AdjustPair, (CELL));
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||||
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||||
static void
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||||
cpcellsd(register CELL *Dest, register CELL *Org, CELL NOf)
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{
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#if HAVE_MEMMOVE
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memmove((void *)Dest, (void *)Org, NOf*sizeof(CELL));
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#else
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register Int n_of = NOf;
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for (; n_of >= 0; n_of--)
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*--Dest = *--Org;
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#endif
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}
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||||
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/* The old stack pointers */
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CELL *OldASP, *OldLCL0;
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tr_fr_ptr OldTR;
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CELL *OldGlobalBase, *OldH, *OldH0;
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ADDR OldTrailBase, OldTrailTop;
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ADDR OldHeapBase, OldHeapTop;
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Int
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GDiff,
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HDiff,
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LDiff,
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TrDiff,
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XDiff,
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DelayDiff;
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||||
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static void
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SetHeapRegs(void)
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{
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#ifdef undf7
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YP_fprintf(YP_stderr,"HeapBase = %x\tHeapTop=%x\nGlobalBase=%x\tGlobalTop=%x\nLocalBase=%x\tLocatTop=%x\n", HeapBase, HeapTop, GlobalBase, H, LCL0, ASP);
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#endif
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/* The old stack pointers */
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OldLCL0 = LCL0;
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OldASP = ASP;
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OldGlobalBase = (CELL *)GlobalBase;
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OldH = H;
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OldH0 = H0;
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OldTrailBase = TrailBase;
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OldTrailTop = TrailTop;
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OldTR = TR;
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||||
OldHeapBase = HeapBase;
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OldHeapTop = HeapTop;
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/* Adjust stack addresses */
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TrailBase = TrailAddrAdjust(TrailBase);
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||||
TrailTop = TrailAddrAdjust(TrailTop);
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||||
GlobalBase = DelayAddrAdjust(GlobalBase);
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||||
LocalBase = LocalAddrAdjust(LocalBase);
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||||
AuxSp = PtoDelayAdjust(AuxSp);
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||||
AuxTop = DelayAddrAdjust(AuxTop);
|
||||
/* The registers pointing to one of the stacks */
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ENV = PtoLocAdjust(ENV);
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ASP = PtoLocAdjust(ASP);
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H0 = PtoGloAdjust(H0);
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||||
LCL0 = PtoLocAdjust(LCL0);
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||||
H = PtoGloAdjust(H);
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||||
HB = PtoGloAdjust(HB);
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B = ChoicePtrAdjust(B);
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||||
if (TopB != NULL)
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||||
TopB = ChoicePtrAdjust(TopB);
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||||
if (DelayedB != NULL)
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||||
DelayedB = ChoicePtrAdjust(DelayedB);
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||||
#ifdef TABLING
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B_FZ = ChoicePtrAdjust(B_FZ);
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||||
BB = ChoicePtrAdjust(BB);
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H_FZ = PtoGloAdjust(H_FZ);
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TR_FZ = PtoTRAdjust(TR_FZ);
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#endif
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TR = PtoTRAdjust(TR);
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YENV = PtoLocAdjust(YENV);
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if (IsOldGlobalPtr(S))
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S = PtoGloAdjust(S);
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if (MyTR)
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MyTR = PtoTRAdjust(MyTR);
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||||
#ifdef COROUTINING
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DelayedVars = AbsAppl(PtoGloAdjust(RepAppl(DelayedVars)));
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MutableList = AbsAppl(PtoGloAdjust(RepAppl(MutableList)));
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||||
AttsMutableList = AbsAppl(PtoGloAdjust(RepAppl(AttsMutableList)));
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||||
WokenGoals = AbsAppl(PtoGloAdjust(RepAppl(WokenGoals)));
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||||
#endif
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||||
}
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||||
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||||
static void
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SetStackRegs(void)
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{
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||||
/* The old local stack pointers */
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||||
OldLCL0 = LCL0;
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OldASP = ASP;
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OldH = H;
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OldH0 = H0;
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OldGlobalBase = (CELL *)GlobalBase;
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||||
OldTrailTop = TrailTop;
|
||||
OldTrailBase = TrailBase;
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||||
OldTR = TR;
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||||
OldHeapBase = HeapBase;
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||||
OldHeapTop = HeapTop;
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||||
/* The local and aux stack addresses */
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TrailBase = TrailAddrAdjust(TrailBase);
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||||
TrailTop = TrailAddrAdjust(TrailTop);
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||||
LocalBase = LocalAddrAdjust(LocalBase);
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||||
TR = PtoTRAdjust(TR);
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||||
/* The registers pointing to the local stack */
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||||
ENV = PtoLocAdjust(ENV);
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||||
ASP = PtoLocAdjust(ASP);
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||||
LCL0 = PtoLocAdjust(LCL0);
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||||
B = ChoicePtrAdjust(B);
|
||||
if (TopB != NULL)
|
||||
TopB = ChoicePtrAdjust(TopB);
|
||||
if (DelayedB != NULL)
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||||
DelayedB = ChoicePtrAdjust(DelayedB);
|
||||
#ifdef TABLING
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||||
B_FZ = ChoicePtrAdjust(B_FZ);
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||||
BB = ChoicePtrAdjust(BB);
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||||
TR_FZ = PtoTRAdjust(TR_FZ);
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||||
#endif
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||||
YENV = PtoLocAdjust(YENV);
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||||
if (MyTR)
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||||
MyTR = PtoTRAdjust(MyTR);
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||||
}
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||||
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||||
static void
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||||
MoveLocalAndTrail(void)
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||||
{
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||||
/* cpcellsd(To,From,NOfCells) - copy the cells downwards */
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||||
#if HAVE_MEMMOVE
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cpcellsd(ASP, OldASP, (CELL *)OldTR - OldASP);
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||||
#else
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||||
cpcellsd((CELL *)TR, (CELL *)OldTR, (CELL *)OldTR - OldASP);
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||||
#endif
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||||
}
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||||
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||||
static void
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||||
MoveGlobal(void)
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||||
{
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||||
/*
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||||
* cpcellsd(To,From,NOfCells) - copy the cells downwards - in
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||||
* absmi.asm
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||||
*/
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||||
#if HAVE_MEMMOVE
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||||
cpcellsd((CELL *)GlobalBase, (CELL *)OldGlobalBase, OldH - (CELL *)OldGlobalBase);
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||||
#else
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||||
cpcellsd(H, OldH, OldH - (CELL *)OldGlobalBase);
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||||
#endif
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||||
}
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||||
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||||
static void
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||||
MoveGlobalOnly(void)
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{
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||||
/*
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||||
* cpcellsd(To,From,NOfCells) - copy the cells downwards - in
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||||
* absmi.asm
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||||
*/
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#if HAVE_MEMMOVE
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cpcellsd(H0, OldH0, OldH - OldH0);
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#else
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cpcellsd(H, OldH, OldH - OldH0);
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#endif
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}
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static inline CELL
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AdjustAppl(register CELL t0)
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||||
{
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register CELL *t = RepAppl(t0);
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if (IsOldGlobalPtr(t))
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return (AbsAppl(PtoGloAdjust(t)));
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else if (IsOldDelayPtr(t))
|
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return (AbsAppl(PtoDelayAdjust(t)));
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else if (IsOldTrailPtr(t))
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return (AbsAppl(CellPtoTRAdjust(t)));
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||||
else if (IsHeapP(t))
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return (AbsAppl(CellPtoHeapAdjust(t)));
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#ifdef DEBUG
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else {
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/* strange cell */
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||||
/* YP_fprintf(YP_stderr,"[ garbage appl %lx found in stacks by stack shifter ]\n", t0);*/
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}
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#endif
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return(t0);
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}
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static inline CELL
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AdjustPair(register CELL t0)
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{
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register CELL *t = RepPair(t0);
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if (IsOldGlobalPtr(t))
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return (AbsPair(PtoGloAdjust(t)));
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if (IsOldDelayPtr(t))
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return (AbsPair(PtoDelayAdjust(t)));
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if (IsOldTrailPtr(t))
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return (AbsPair(CellPtoTRAdjust(t)));
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||||
else if (IsHeapP(t))
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return (AbsPair(CellPtoHeapAdjust(t)));
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#ifdef DEBUG
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||||
/* YP_fprintf(YP_stderr,"[ garbage pair %lx found in stacks by stack shifter ]\n", t0);*/
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||||
#endif
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||||
return(t0);
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||||
}
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||||
static void
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||||
AdjustTrail(int adjusting_heap)
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||||
{
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||||
register tr_fr_ptr ptt;
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ptt = TR;
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/* moving the trail is simple */
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while (ptt != (tr_fr_ptr)TrailBase) {
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||||
register CELL reg = TrailTerm(ptt-1);
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ptt--;
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if (IsVarTerm(reg)) {
|
||||
if (IsOldLocalInTR(reg))
|
||||
TrailTerm(ptt) = LocalAdjust(reg);
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||||
else if (IsOldGlobal(reg))
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||||
TrailTerm(ptt) = GlobalAdjust(reg);
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||||
else if (IsOldDelay(reg))
|
||||
TrailTerm(ptt) = DelayAdjust(reg);
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||||
else if (IsOldTrail(reg))
|
||||
TrailTerm(ptt) = TrailAdjust(reg);
|
||||
else if (IsOldCode(reg)) {
|
||||
CELL *ptr;
|
||||
TrailTerm(ptt) = reg = CodeAdjust(reg);
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||||
ptr = (CELL *)reg;
|
||||
if (IsApplTerm(*ptr)) {
|
||||
*ptr = AdjustAppl(*ptr);
|
||||
} else if (IsPairTerm(*ptr)) {
|
||||
*ptr = AdjustAppl(*ptr);
|
||||
}
|
||||
#ifdef DEBUG
|
||||
else
|
||||
YP_fprintf(YP_stderr,"[ garbage heap ptr %p to %lx found in trail at %p by stack shifter ]\n", ptr, (unsigned long int)*ptr, ptt);
|
||||
#endif
|
||||
}
|
||||
} else if (IsPairTerm(reg)) {
|
||||
TrailTerm(ptt) = AdjustPair(reg);
|
||||
#ifdef MULTI_ASSIGNMENT_VARIABLES /* does not work with new structures */
|
||||
/* check it whether we are protecting a
|
||||
multi-assignment */
|
||||
} else if (IsApplTerm(reg)) {
|
||||
TrailTerm(ptt) = AdjustAppl(reg);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
static void
|
||||
AdjustLocal(void)
|
||||
{
|
||||
register CELL reg, *pt;
|
||||
|
||||
/* Adjusting the local */
|
||||
pt = LCL0;
|
||||
while (pt > ASP) {
|
||||
reg = *--pt;
|
||||
if (IsVarTerm(reg)) {
|
||||
if (IsOldLocal(reg))
|
||||
*pt = LocalAdjust(reg);
|
||||
else if (IsOldGlobal(reg))
|
||||
*pt = GlobalAdjust(reg);
|
||||
else if (IsOldDelay(reg))
|
||||
*pt = DelayAdjust(reg);
|
||||
else if (IsOldTrail(reg))
|
||||
*pt = TrailAdjust(reg);
|
||||
else if (IsOldCode(reg))
|
||||
*pt = CodeAdjust(reg);
|
||||
} else if (IsApplTerm(reg)) {
|
||||
*pt = AdjustAppl(reg);
|
||||
} else if (IsPairTerm(reg)) {
|
||||
*pt = AdjustPair(reg);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
static void
|
||||
AdjustGlobal(void)
|
||||
{
|
||||
register CELL *pt;
|
||||
|
||||
/*
|
||||
* to clean the global now that functors are just variables pointing to
|
||||
* the code
|
||||
*/
|
||||
pt = CellPtr(GlobalBase);
|
||||
while (pt < H) {
|
||||
register CELL reg;
|
||||
|
||||
reg = *pt;
|
||||
if (IsVarTerm(reg)) {
|
||||
if (IsOldGlobal(reg))
|
||||
*pt = GlobalAdjust(reg);
|
||||
if (IsOldDelay(reg))
|
||||
*pt = DelayAdjust(reg);
|
||||
else if (IsOldLocal(reg))
|
||||
*pt = LocalAdjust(reg);
|
||||
else if (IsOldCode(reg)) {
|
||||
Functor f;
|
||||
f = (Functor)(*pt = CodeAdjust(reg));
|
||||
if (f <= FunctorDouble && f >= FunctorLongInt) {
|
||||
/* skip bitmaps */
|
||||
switch((CELL)f) {
|
||||
case (CELL)FunctorDouble:
|
||||
#if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT
|
||||
pt += 3;
|
||||
#else
|
||||
pt += 2;
|
||||
#endif
|
||||
break;
|
||||
#if USE_GMP
|
||||
case (CELL)FunctorBigInt:
|
||||
{
|
||||
Int sz = 1+
|
||||
sizeof(MP_INT)+
|
||||
(((MP_INT *)(pt+1))->_mp_alloc*sizeof(mp_limb_t));
|
||||
pt += sz;
|
||||
}
|
||||
break;
|
||||
#endif
|
||||
case (CELL)FunctorLongInt:
|
||||
default:
|
||||
pt += 2;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
#ifdef MULTI_ASSIGNMENT_VARIABLES
|
||||
else if (IsOldTrail(reg))
|
||||
*pt = TrailAdjust(reg);
|
||||
#endif
|
||||
} else if (IsApplTerm(reg))
|
||||
*pt = AdjustAppl(reg);
|
||||
else if (IsPairTerm(reg))
|
||||
*pt = AdjustPair(reg);
|
||||
else if (IsAtomTerm(reg))
|
||||
*pt = AtomTermAdjust(reg);
|
||||
pt++;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* When growing the stack we need to adjust: the local stack cells pointing
|
||||
* to the local; the local stack cells and the X terms pointing to the global
|
||||
* (just once) the trail cells pointing both to the global and to the local
|
||||
*/
|
||||
void
|
||||
AdjustStacksAndTrail(void)
|
||||
{
|
||||
AdjustTrail(TRUE);
|
||||
AdjustLocal();
|
||||
AdjustGlobal();
|
||||
}
|
||||
|
||||
/*
|
||||
* When growing the stack we need to adjust: the local cells pointing to the
|
||||
* local; the trail cells pointing to the local
|
||||
*/
|
||||
static void
|
||||
AdjustGrowStack(void)
|
||||
{
|
||||
AdjustTrail(FALSE);
|
||||
AdjustLocal();
|
||||
}
|
||||
|
||||
void
|
||||
AdjustRegs(int n)
|
||||
{
|
||||
int i;
|
||||
CELL reg;
|
||||
|
||||
for (i = 1; i < n; ++i) {
|
||||
reg = (CELL) XREGS[i];
|
||||
if (IsVarTerm(reg)) {
|
||||
if (IsOldLocal(reg))
|
||||
reg = LocalAdjust(reg);
|
||||
else if (IsOldGlobal(reg))
|
||||
reg = GlobalAdjust(reg);
|
||||
else if (IsOldDelay(reg))
|
||||
reg = DelayAdjust(reg);
|
||||
else if (IsOldTrail(reg))
|
||||
reg = TrailAdjust(reg);
|
||||
else if (IsOldCode(reg))
|
||||
reg = CodeAdjust(reg);
|
||||
} else if (IsApplTerm(reg))
|
||||
reg = AdjustAppl(reg);
|
||||
else if (IsPairTerm(reg))
|
||||
reg = AdjustPair(reg);
|
||||
XREGS[i] = (Term) reg;
|
||||
}
|
||||
}
|
||||
|
||||
/* Used by do_goal() when we're short of heap space */
|
||||
static int
|
||||
local_growheap(long size, int fix_code)
|
||||
{
|
||||
Int start_growth_time, growth_time;
|
||||
int gc_verbose;
|
||||
|
||||
/* adjust to a multiple of 256) */
|
||||
size = AdjustPageSize(size);
|
||||
if (!ExtendWorkSpace(size)) {
|
||||
return(FALSE);
|
||||
}
|
||||
start_growth_time = cputime();
|
||||
gc_verbose = is_gc_verbose();
|
||||
heap_overflows++;
|
||||
if (gc_verbose) {
|
||||
YP_fprintf(YP_stderr, "[HO] Heap overflow %d\n", heap_overflows);
|
||||
YP_fprintf(YP_stderr, "[HO] growing the heap %ld bytes\n", size);
|
||||
}
|
||||
ASP -= 256;
|
||||
TrDiff = LDiff = GDiff = DelayDiff = size;
|
||||
XDiff = HDiff = 0;
|
||||
YAPEnterCriticalSection();
|
||||
SetHeapRegs();
|
||||
MoveLocalAndTrail();
|
||||
if (fix_code) {
|
||||
CELL *SaveOldH = OldH;
|
||||
OldH = (CELL *)freep;
|
||||
MoveGlobal();
|
||||
OldH = SaveOldH;
|
||||
} else {
|
||||
MoveGlobal();
|
||||
}
|
||||
AdjustStacksAndTrail();
|
||||
AdjustRegs(MaxTemps);
|
||||
YAPLeaveCriticalSection();
|
||||
ASP += 256;
|
||||
growth_time = cputime()-start_growth_time;
|
||||
total_heap_overflow_time += growth_time;
|
||||
if (gc_verbose) {
|
||||
YP_fprintf(YP_stderr, "[HO] took %g sec\n", (double)growth_time/1000);
|
||||
YP_fprintf(YP_stderr, "[HO] Total of %g sec expanding heap \n", (double)total_heap_overflow_time/1000);
|
||||
}
|
||||
return(TRUE);
|
||||
}
|
||||
|
||||
/* Used by do_goal() when we're short of heap space */
|
||||
static int
|
||||
local_growglobal(long size)
|
||||
{
|
||||
Int start_growth_time, growth_time;
|
||||
int gc_verbose;
|
||||
|
||||
/* adjust to a multiple of 256) */
|
||||
size = AdjustPageSize(size);
|
||||
if (!ExtendWorkSpace(size)) {
|
||||
return(FALSE);
|
||||
}
|
||||
start_growth_time = cputime();
|
||||
gc_verbose = is_gc_verbose();
|
||||
delay_overflows++;
|
||||
if (gc_verbose) {
|
||||
YP_fprintf(YP_stderr, "[DO] Delay overflow %d\n", delay_overflows);
|
||||
YP_fprintf(YP_stderr, "[DO] growing the stacks %ld bytes\n", size);
|
||||
}
|
||||
ASP -= 256;
|
||||
TrDiff = LDiff = GDiff = size;
|
||||
XDiff = HDiff = DelayDiff = 0;
|
||||
YAPEnterCriticalSection();
|
||||
SetHeapRegs();
|
||||
MoveLocalAndTrail();
|
||||
MoveGlobalOnly();
|
||||
AdjustStacksAndTrail();
|
||||
AdjustRegs(MaxTemps);
|
||||
YAPLeaveCriticalSection();
|
||||
ASP += 256;
|
||||
growth_time = cputime()-start_growth_time;
|
||||
total_delay_overflow_time += growth_time;
|
||||
if (gc_verbose) {
|
||||
YP_fprintf(YP_stderr, "[DO] took %g sec\n", (double)growth_time/1000);
|
||||
YP_fprintf(YP_stderr, "[DO] Total of %g sec expanding stacks \n", (double)total_delay_overflow_time/1000);
|
||||
}
|
||||
return(TRUE);
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
fix_compiler_instructions(PInstr *cpc)
|
||||
{
|
||||
while (cpc != NULL) {
|
||||
PInstr *ncpc = cpc->nextInst;
|
||||
|
||||
switch(cpc->op) {
|
||||
/* check c_var for functions that point at variables */
|
||||
case get_var_op:
|
||||
case get_val_op:
|
||||
case unify_var_op:
|
||||
case unify_last_var_op:
|
||||
case unify_val_op:
|
||||
case unify_last_val_op:
|
||||
case put_var_op:
|
||||
case put_val_op:
|
||||
case write_var_op:
|
||||
case write_val_op:
|
||||
case f_var_op:
|
||||
case f_val_op:
|
||||
case fetch_args_for_bccall:
|
||||
case bccall_op:
|
||||
case save_pair_op:
|
||||
case save_appl_op:
|
||||
case save_b_op:
|
||||
case comit_b_op:
|
||||
cpc->rnd1 = GlobalAdjust(cpc->rnd1);
|
||||
break;
|
||||
default:
|
||||
/* hopefully nothing to do */
|
||||
break;
|
||||
}
|
||||
if (ncpc != NULL) {
|
||||
ncpc = (PInstr *)GlobalAddrAdjust((ADDR)(cpc->nextInst));
|
||||
cpc->nextInst = ncpc;
|
||||
}
|
||||
cpc = ncpc;
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef TABLING
|
||||
static void
|
||||
fix_tabling_info(void)
|
||||
{
|
||||
/* we must fix the dependency frames and the subgoal frames, as they are
|
||||
pointing back to the global stack. */
|
||||
struct dependency_frame *df;
|
||||
struct subgoal_frame *sg;
|
||||
|
||||
df = LOCAL_top_dep_fr;
|
||||
while (df != NULL) {
|
||||
if (DepFr_backchain_cp(df))
|
||||
DepFr_backchain_cp(df) = ChoicePtrAdjust(DepFr_backchain_cp(df));
|
||||
DepFr_leader_cp(df) = ChoicePtrAdjust(DepFr_leader_cp(df));
|
||||
DepFr_cons_cp(df) = ConsumerChoicePtrAdjust(DepFr_cons_cp(df));
|
||||
df = DepFr_next(df);
|
||||
}
|
||||
sg = LOCAL_top_sg_fr;
|
||||
while (sg != NULL) {
|
||||
SgFr_gen_cp(sg) = GeneratorChoicePtrAdjust(SgFr_gen_cp(sg));
|
||||
sg = SgFr_next(sg);
|
||||
}
|
||||
}
|
||||
#endif /* TABLING */
|
||||
|
||||
int
|
||||
growheap(int fix_code)
|
||||
{
|
||||
unsigned long size = sizeof(CELL) * 16 * 1024L;
|
||||
int shift_factor = (heap_overflows > 8 ? 8 : heap_overflows);
|
||||
unsigned long sz = size << shift_factor;
|
||||
|
||||
#ifdef FIXED_STACKS
|
||||
abort_optyap("noheapleft in function absmi");
|
||||
#endif
|
||||
if (SizeOfOverflow > sz)
|
||||
sz = AdjustPageSize(SizeOfOverflow);
|
||||
while(sz >= sizeof(CELL) * 16 * 1024L && !local_growheap(sz, fix_code)) {
|
||||
size = size/2;
|
||||
sz = size << shift_factor;
|
||||
}
|
||||
/* we must fix an instruction chain */
|
||||
if (fix_code) {
|
||||
PInstr *cpc = CodeStart;
|
||||
if (cpc != NULL) {
|
||||
CodeStart = cpc = (PInstr *)GlobalAddrAdjust((ADDR)cpc);
|
||||
}
|
||||
fix_compiler_instructions(cpc);
|
||||
cpc = BlobsStart;
|
||||
if (cpc != NULL) {
|
||||
BlobsStart = cpc = (PInstr *)GlobalAddrAdjust((ADDR)cpc);
|
||||
}
|
||||
fix_compiler_instructions(cpc);
|
||||
}
|
||||
#ifdef TABLING
|
||||
fix_tabling_info();
|
||||
#endif
|
||||
return(sz >= sizeof(CELL) * 16 * 1024L);
|
||||
}
|
||||
|
||||
int
|
||||
growglobal(void)
|
||||
{
|
||||
unsigned long sz = sizeof(CELL) * 16 * 1024L;
|
||||
|
||||
#ifdef FIXED_STACKS
|
||||
abort_optyap("noheapleft in function absmi");
|
||||
#endif
|
||||
if (!local_growglobal(sz))
|
||||
return(FALSE);
|
||||
#ifdef TABLING
|
||||
fix_tabling_info();
|
||||
#endif
|
||||
return(TRUE);
|
||||
}
|
||||
|
||||
|
||||
/* Used by do_goal() when we're short of stack space */
|
||||
int
|
||||
growstack(long size)
|
||||
{
|
||||
Int start_growth_time, growth_time;
|
||||
int gc_verbose;
|
||||
|
||||
#ifdef FIXED_STACKS
|
||||
abort_optyap("nostackleft in function absmi");
|
||||
#endif
|
||||
/* adjust to a multiple of 256) */
|
||||
size = AdjustPageSize(size);
|
||||
if (!ExtendWorkSpace(size)) {
|
||||
return(FALSE);
|
||||
}
|
||||
start_growth_time = cputime();
|
||||
gc_verbose = is_gc_verbose();
|
||||
stack_overflows++;
|
||||
if (gc_verbose) {
|
||||
YP_fprintf(YP_stderr, "[SO] Stack overflow %d\n", stack_overflows);
|
||||
YP_fprintf(YP_stderr, "[SO] Heap: %8ld cells (%p-%p)\n", (unsigned long int)(H-(CELL *)GlobalBase),GlobalBase,H);
|
||||
YP_fprintf(YP_stderr, "[SO] Local:%8ld cells (%p-%p)\n", (unsigned long int)(LCL0-ASP),LCL0,ASP);
|
||||
YP_fprintf(YP_stderr, "[SO] Trail:%8ld cells (%p-%p)\n",
|
||||
(unsigned long int)(TR-(tr_fr_ptr)TrailBase),TrailBase,TR);
|
||||
YP_fprintf(YP_stderr, "[SO] growing the stacks %ld bytes\n", size);
|
||||
}
|
||||
TrDiff = LDiff = size;
|
||||
XDiff = HDiff = GDiff = DelayDiff = 0;
|
||||
ASP -= 256;
|
||||
YAPEnterCriticalSection();
|
||||
SetStackRegs();
|
||||
MoveLocalAndTrail();
|
||||
AdjustGrowStack();
|
||||
AdjustRegs(MaxTemps);
|
||||
#ifdef TABLING
|
||||
fix_tabling_info();
|
||||
#endif
|
||||
YAPLeaveCriticalSection();
|
||||
CreepFlag = MinStackGap*(stack_overflows+1);
|
||||
ASP += 256;
|
||||
growth_time = cputime()-start_growth_time;
|
||||
total_stack_overflow_time += growth_time;
|
||||
if (gc_verbose) {
|
||||
YP_fprintf(YP_stderr, "[SO] took %g sec\n", (double)growth_time/1000);
|
||||
YP_fprintf(YP_stderr, "[SO] Total of %g sec expanding stacks \n", (double)total_stack_overflow_time/1000);
|
||||
}
|
||||
return(TRUE);
|
||||
}
|
||||
|
||||
static void
|
||||
AdjustVarTable(VarEntry *ves)
|
||||
{
|
||||
ves->VarAdr = TermNil;
|
||||
if (ves->VarRight != NULL) {
|
||||
ves->VarRight = (VarEntry *)TrailAddrAdjust((ADDR)(ves->VarRight));
|
||||
AdjustVarTable(ves->VarRight);
|
||||
}
|
||||
if (ves->VarLeft != NULL) {
|
||||
ves->VarLeft = (VarEntry *)TrailAddrAdjust((ADDR)(ves->VarLeft));
|
||||
AdjustVarTable(ves->VarLeft);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
If we have to shift while we are scanning we need to adjust all
|
||||
pointers created by the scanner (Tokens and Variables)
|
||||
*/
|
||||
static void
|
||||
AdjustScannerStacks(TokEntry **tksp, VarEntry **vep)
|
||||
{
|
||||
TokEntry *tks = *tksp;
|
||||
VarEntry *ves = *vep;
|
||||
|
||||
if (tks != NULL) {
|
||||
tks = *tksp = (TokEntry *)TrailAddrAdjust((ADDR)tks);
|
||||
}
|
||||
while (tks != NULL) {
|
||||
TokEntry *tktmp;
|
||||
|
||||
switch (tks->Tok) {
|
||||
case Var_tok:
|
||||
case String_tok:
|
||||
tks->TokInfo = TrailAdjust(tks->TokInfo);
|
||||
break;
|
||||
case Name_tok:
|
||||
tks->TokInfo = (Term)AtomAdjust((Atom)(tks->TokInfo));
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
tktmp = tks->TokNext;
|
||||
if (tktmp != NULL) {
|
||||
tktmp = (TokEntry *)TrailAddrAdjust((ADDR)tktmp);
|
||||
tks->TokNext = tktmp;
|
||||
}
|
||||
tks = tktmp;
|
||||
}
|
||||
if (ves != NULL) {
|
||||
ves = *vep = (VarEntry *)TrailAddrAdjust((ADDR)ves);
|
||||
AdjustVarTable(ves);
|
||||
}
|
||||
ves = AnonVarTable;
|
||||
if (ves != NULL) {
|
||||
ves = AnonVarTable = (VarEntry *)TrailAddrAdjust((ADDR)ves);
|
||||
}
|
||||
while (ves != NULL) {
|
||||
VarEntry *vetmp = ves->VarLeft;
|
||||
if (vetmp != NULL) {
|
||||
vetmp = (VarEntry *)TrailAddrAdjust((ADDR)vetmp);
|
||||
ves->VarLeft = vetmp;
|
||||
}
|
||||
ves->VarAdr = TermNil;
|
||||
ves = vetmp;
|
||||
}
|
||||
}
|
||||
|
||||
/* Used by parser when we're short of stack space */
|
||||
int
|
||||
growstack_in_parser(tr_fr_ptr *old_trp, TokEntry **tksp, VarEntry **vep)
|
||||
{
|
||||
Int start_growth_time, growth_time;
|
||||
int gc_verbose;
|
||||
long size = sizeof(CELL)*(LCL0-(CELL *)GlobalBase);
|
||||
|
||||
#ifdef FIXED_STACKS
|
||||
abort_optyap("nostackleft in parser");
|
||||
#endif
|
||||
/* adjust to a multiple of 256) */
|
||||
size = AdjustPageSize(size);
|
||||
if (!ExtendWorkSpace(size)) {
|
||||
return(FALSE);
|
||||
}
|
||||
start_growth_time = cputime();
|
||||
gc_verbose = is_gc_verbose();
|
||||
stack_overflows++;
|
||||
if (gc_verbose) {
|
||||
YP_fprintf(YP_stderr, "[SO] Stack overflow %d\n", stack_overflows);
|
||||
YP_fprintf(YP_stderr, "[SO] Heap: %8ld cells (%p-%p)\n", (unsigned long int)(H-(CELL *)GlobalBase),(CELL *)GlobalBase,H);
|
||||
YP_fprintf(YP_stderr, "[SO] Local:%8ld cells (%p-%p)\n", (unsigned long int)(LCL0-ASP),LCL0,ASP);
|
||||
YP_fprintf(YP_stderr, "[SO] Trail:%8ld cells (%p-%p)\n",
|
||||
(unsigned long int)(TR-(tr_fr_ptr)TrailBase),TrailBase,TR);
|
||||
YP_fprintf(YP_stderr, "[SO] growing the stacks %ld bytes\n", size);
|
||||
}
|
||||
TrDiff = LDiff = size;
|
||||
XDiff = HDiff = GDiff = DelayDiff = 0;
|
||||
ASP -= 256;
|
||||
YAPEnterCriticalSection();
|
||||
SetStackRegs();
|
||||
MoveLocalAndTrail();
|
||||
AdjustScannerStacks(tksp, vep);
|
||||
{
|
||||
tr_fr_ptr nTR = TR;
|
||||
*old_trp = TR = PtoTRAdjust(*old_trp);
|
||||
AdjustGrowStack();
|
||||
TR = nTR;
|
||||
}
|
||||
AdjustRegs(MaxTemps);
|
||||
YAPLeaveCriticalSection();
|
||||
CreepFlag = MinStackGap*(stack_overflows+1);
|
||||
ASP += 256;
|
||||
growth_time = cputime()-start_growth_time;
|
||||
total_stack_overflow_time += growth_time;
|
||||
if (gc_verbose) {
|
||||
YP_fprintf(YP_stderr, "[SO] took %g sec\n", (double)growth_time/1000);
|
||||
YP_fprintf(YP_stderr, "[SO] Total of %g sec expanding stacks \n", (double)total_stack_overflow_time/1000);
|
||||
}
|
||||
return(TRUE);
|
||||
}
|
||||
|
||||
|
||||
/* Used by do_goal() when we're short of stack space */
|
||||
int
|
||||
growtrail(long size)
|
||||
{
|
||||
Int start_growth_time = cputime(), growth_time;
|
||||
int gc_verbose = is_gc_verbose();
|
||||
|
||||
#ifdef FIXED_STACKS
|
||||
abort_optyap("notrailleft in function absmi");
|
||||
#endif
|
||||
/* adjust to a multiple of 256) */
|
||||
size = AdjustPageSize(size);
|
||||
trail_overflows++;
|
||||
if (gc_verbose) {
|
||||
YP_fprintf(YP_stderr, "[TO] Trail overflow %d\n", trail_overflows);
|
||||
YP_fprintf(YP_stderr, "[TO] growing the trail %ld bytes\n", size);
|
||||
}
|
||||
if (!ExtendWorkSpace(size)) {
|
||||
return(FALSE);
|
||||
}
|
||||
YAPEnterCriticalSection();
|
||||
TrailTop += size;
|
||||
YAPLeaveCriticalSection();
|
||||
growth_time = cputime()-start_growth_time;
|
||||
total_trail_overflow_time += growth_time;
|
||||
if (gc_verbose) {
|
||||
YP_fprintf(YP_stderr, "[TO] took %g sec\n", (double)growth_time/1000);
|
||||
YP_fprintf(YP_stderr, "[TO] Total of %g sec expanding stacks \n", (double)total_stack_overflow_time/1000);
|
||||
}
|
||||
return(TRUE);
|
||||
}
|
||||
|
||||
|
||||
static Int
|
||||
p_inform_trail_overflows(void)
|
||||
{
|
||||
Term tn = MkIntTerm(trail_overflows);
|
||||
Term tt = MkIntegerTerm(total_trail_overflow_time);
|
||||
|
||||
return(unify(tn, ARG1) && unify(tt, ARG2));
|
||||
}
|
||||
|
||||
/* :- grow_heap(Size) */
|
||||
static Int
|
||||
p_growheap(void)
|
||||
{
|
||||
Int diff;
|
||||
Term t1 = Deref(ARG1);
|
||||
|
||||
if (IsVarTerm(t1)) {
|
||||
Error(INSTANTIATION_ERROR, t1, "grow_heap/1");
|
||||
return(FALSE);
|
||||
} else if (!IsIntTerm(t1)) {
|
||||
Error(TYPE_ERROR_INTEGER, t1, "grow_heap/1");
|
||||
return(FALSE);
|
||||
}
|
||||
diff = IntOfTerm(t1);
|
||||
if (diff < 0) {
|
||||
Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, t1, "grow_heap/1");
|
||||
}
|
||||
return(local_growheap(diff, FALSE));
|
||||
}
|
||||
|
||||
static Int
|
||||
p_inform_heap_overflows(void)
|
||||
{
|
||||
Term tn = MkIntTerm(heap_overflows);
|
||||
Term tt = MkIntegerTerm(total_heap_overflow_time);
|
||||
|
||||
return(unify(tn, ARG1) && unify(tt, ARG2));
|
||||
}
|
||||
|
||||
/* :- grow_stack(Size) */
|
||||
static Int
|
||||
p_growstack(void)
|
||||
{
|
||||
Int diff;
|
||||
Term t1 = Deref(ARG1);
|
||||
|
||||
if (IsVarTerm(t1)) {
|
||||
Error(INSTANTIATION_ERROR, t1, "grow_stack/1");
|
||||
return(FALSE);
|
||||
} else if (!IsIntTerm(t1)) {
|
||||
Error(TYPE_ERROR_INTEGER, t1, "grow_stack/1");
|
||||
return(FALSE);
|
||||
}
|
||||
diff = IntOfTerm(t1);
|
||||
if (diff < 0) {
|
||||
Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, t1, "grow_stack/1");
|
||||
}
|
||||
return(growstack(diff));
|
||||
}
|
||||
|
||||
static Int
|
||||
p_inform_stack_overflows(void)
|
||||
{
|
||||
Term tn = MkIntTerm(stack_overflows);
|
||||
Term tt = MkIntegerTerm(total_stack_overflow_time);
|
||||
|
||||
return(unify(tn, ARG1) && unify(tt, ARG2));
|
||||
|
||||
}
|
||||
|
||||
Int total_stack_shift_time(void)
|
||||
{
|
||||
return(total_heap_overflow_time+
|
||||
total_stack_overflow_time+
|
||||
total_trail_overflow_time);
|
||||
}
|
||||
|
||||
void
|
||||
InitGrowPreds(void)
|
||||
{
|
||||
InitCPred("$grow_heap", 1, p_growheap, SafePredFlag);
|
||||
InitCPred("$grow_stack", 1, p_growstack, SafePredFlag);
|
||||
InitCPred("$inform_trail_overflows", 2, p_inform_trail_overflows, SafePredFlag);
|
||||
InitCPred("$inform_heap_overflows", 2, p_inform_heap_overflows, SafePredFlag);
|
||||
InitCPred("$inform_stack_overflows", 2, p_inform_stack_overflows, SafePredFlag);
|
||||
init_gc();
|
||||
}
|
||||
Reference in New Issue
Block a user