1509 lines
39 KiB
C
Executable File
1509 lines
39 KiB
C
Executable File
/*************************************************************************
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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: init.c *
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* Last rev: *
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* mods: *
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* comments: initializing a prolog session *
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* *
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*************************************************************************/
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#ifdef SCCS
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static char SccsId[] = "%W% %G%";
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#endif
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/*
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* The code from this file is used to initialize the environment for prolog
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*
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*/
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#include <stdlib.h>
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#include "Yap.h"
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#include "clause.h"
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#include "yapio.h"
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#include "alloc.h"
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#include "Foreign.h"
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#ifdef LOW_LEVEL_TRACER
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#include "tracer.h"
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#endif
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#ifdef YAPOR
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#ifdef YAPOR_COW
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#include <signal.h>
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#endif /* YAPOR_COW */
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#include "or.macros.h"
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#endif /* YAPOR */
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#if defined(YAPOR) || defined(TABLING)
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#if HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#if HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#if HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#endif /* YAPOR || TABLING */
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#if HAVE_STRING_H
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#include <string.h>
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#endif
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int Yap_output_msg = FALSE;
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#if DEBUG
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#define LOGFILE "logfile"
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#ifdef MACC
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static void InTTYLine(char *);
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#endif
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#endif
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static void SetOp(int, int, char *, Term);
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static void InitOps(void);
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static void InitDebug(void);
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static void CleanBack(PredEntry *, CPredicate, CPredicate, CPredicate);
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static void InitStdPreds(void);
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static void InitCodes(void);
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static void InitVersion(void);
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void exit(int);
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static void InitWorker(int wid);
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/************** YAP PROLOG GLOBAL VARIABLES *************************/
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/************* variables related to memory allocation ***************/
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ADDR Yap_HeapBase;
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/************** declarations local to init.c ************************/
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static char *optypes[] =
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{"", "xfx", "xfy", "yfx", "xf", "yf", "fx", "fy"};
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/* OS page size for memory allocation */
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size_t Yap_page_size;
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#if DEBUG
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#if COROUTINING
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int Yap_Portray_delays = FALSE;
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#endif
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#endif
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/**
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@defgroup Operators Summary of YAP Predefined Operators
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@ingroup Syntax
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@{
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The Prolog syntax caters for operators of three main kinds:
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+ prefix;
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+ infix;
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+ postfix.
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Each operator has precedence in the range 1 to 1200, and this
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precedence is used to disambiguate expressions where the structure of the
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term denoted is not made explicit using brackets. The operator of higher
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precedence is the main functor.
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If there are two operators with the highest precedence, the ambiguity
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is solved analyzing the types of the operators. The possible infix types are:
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_xfx_, _xfy_, and _yfx_.
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With an operator of type _xfx_ both sub-expressions must have lower
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precedence than the operator itself, unless they are bracketed (which
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assigns to them zero precedence). With an operator type _xfy_ only the
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left-hand sub-expression must have lower precedence. The opposite happens
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for _yfx_ type.
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A prefix operator can be of type _fx_ or _fy_.
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A postfix operator can be of type _xf_ or _yf_.
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The meaning of the notation is analogous to the above.
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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a + b * c
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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means
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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a + (b * c)
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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as + and \* have the following types and precedences:
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:-op(500,yfx,'+').
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:-op(400,yfx,'*').
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Now defining
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:-op(700,xfy,'++').
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:-op(700,xfx,'=:=').
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a ++ b =:= c
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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means
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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a ++ (b =:= c)
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The following is the list of the declarations of the predefined operators:
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:-op(1200,fx,['?-', ':-']).
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:-op(1200,xfx,[':-','-->']).
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:-op(1150,fx,[block,dynamic,mode,public,multifile,meta_predicate,
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sequential,table,initialization]).
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:-op(1100,xfy,[';','|']).
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:-op(1050,xfy,->).
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:-op(1000,xfy,',').
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:-op(999,xfy,'.').
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:-op(900,fy,['\+', not]).
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:-op(900,fx,[nospy, spy]).
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:-op(700,xfx,[@>=,@=<,@<,@>,<,=,>,=:=,=\=,\==,>=,=<,==,\=,=..,is]).
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:-op(500,yfx,['\/','/\','+','-']).
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:-op(500,fx,['+','-']).
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:-op(400,yfx,['<<','>>','//','*','/']).
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:-op(300,xfx,mod).
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:-op(200,xfy,['^','**']).
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:-op(50,xfx,same).
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*/
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#define xfx 1
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#define xfy 2
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#define yfx 3
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#define xf 4
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#define yf 5
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#define fx 6
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#define fy 7
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int
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Yap_IsOpType(char *type)
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{
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int i;
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for (i = 1; i <= 7; ++i)
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if (strcmp(type, optypes[i]) == 0)
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break;
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return (i <= 7);
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}
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static int
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OpDec(int p, const char *type, Atom a, Term m)
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{
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int i;
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AtomEntry *ae = RepAtom(a);
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OpEntry *info;
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if (m == TermProlog)
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m = PROLOG_MODULE;
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else if (m == USER_MODULE)
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m = PROLOG_MODULE;
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for (i = 1; i <= 7; ++i)
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if (strcmp(type, optypes[i]) == 0)
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break;
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if (i > 7) {
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Yap_Error(DOMAIN_ERROR_OPERATOR_SPECIFIER,MkAtomTerm(Yap_LookupAtom(type)),"op/3");
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return(FALSE);
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}
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if (p) {
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if (i == 1 || i == 2 || i == 4)
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p |= DcrlpFlag;
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if (i == 1 || i == 3 || i == 6)
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p |= DcrrpFlag;
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}
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WRITE_LOCK(ae->ARWLock);
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info = Yap_GetOpPropForAModuleHavingALock(ae, m);
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if (EndOfPAEntr(info)) {
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info = (OpEntry *) Yap_AllocAtomSpace(sizeof(OpEntry));
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info->KindOfPE = Ord(OpProperty);
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info->OpModule = m;
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info->OpName = a;
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//LOCK(OpListLock);
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info->OpNext = OpList;
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OpList = info;
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//UNLOCK(OpListLock);
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AddPropToAtom(ae, (PropEntry *)info);
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INIT_RWLOCK(info->OpRWLock);
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WRITE_LOCK(info->OpRWLock);
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WRITE_UNLOCK(ae->ARWLock);
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info->Prefix = info->Infix = info->Posfix = 0;
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} else {
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WRITE_LOCK(info->OpRWLock);
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WRITE_UNLOCK(ae->ARWLock);
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}
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if (i <= 3) {
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if (trueGlobalPrologFlag(ISO_FLAG) &&
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info->Posfix != 0) /* there is a posfix operator */ {
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/* ISO dictates */
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WRITE_UNLOCK(info->OpRWLock);
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Yap_Error(PERMISSION_ERROR_CREATE_OPERATOR,MkAtomTerm(a),"op/3");
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return FALSE;
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}
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info->Infix = p;
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} else if (i <= 5) {
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if (trueGlobalPrologFlag(ISO_FLAG) &&
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info->Infix != 0) /* there is an infix operator */ {
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/* ISO dictates */
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WRITE_UNLOCK(info->OpRWLock);
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Yap_Error(PERMISSION_ERROR_CREATE_OPERATOR,MkAtomTerm(a),"op/3");
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return FALSE;
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}
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info->Posfix = p;
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} else {
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info->Prefix = p;
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}
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WRITE_UNLOCK(info->OpRWLock);
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return (TRUE);
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}
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int
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Yap_OpDec(int p, char *type, Atom a, Term m)
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{
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return(OpDec(p,type,a,m));
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}
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static void
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SetOp(int p, int type, char *at, Term m)
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{
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#if DEBUG
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if (GLOBAL_Option[5])
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fprintf(stderr,"[setop %d %s %s]\n", p, optypes[type], at);
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#endif
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OpDec(p, optypes[type], Yap_LookupAtom(at), m);
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}
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/* Gets the info about an operator in a prop */
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Atom
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Yap_GetOp(OpEntry *pp, int *prio, int fix)
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{
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int n;
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SMALLUNSGN p;
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if (fix == 0) {
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p = pp->Prefix;
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if (p & DcrrpFlag)
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n = 6, *prio = (p ^ DcrrpFlag);
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else
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n = 7, *prio = p;
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} else if (fix == 1) {
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p = pp->Posfix;
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if (p & DcrlpFlag)
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n = 4, *prio = (p ^ DcrlpFlag);
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else
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n = 5, *prio = p;
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} else {
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p = pp->Infix;
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if ((p & DcrrpFlag) && (p & DcrlpFlag))
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n = 1, *prio = (p ^ (DcrrpFlag | DcrlpFlag));
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else if (p & DcrrpFlag)
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n = 3, *prio = (p ^ DcrrpFlag);
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else if (p & DcrlpFlag)
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n = 2, *prio = (p ^ DcrlpFlag);
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else
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n = 4, *prio = p;
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}
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return Yap_LookupAtom(optypes[n]);
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}
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typedef struct OPSTRUCT {
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char *opName;
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short int opType, opPrio;
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} Opdef;
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static Opdef Ops[] = {
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{":-", xfx, 1200},
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{"-->", xfx, 1200},
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{"?-", fx, 1200},
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{":-", fx, 1200},
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{"dynamic", fx, 1150},
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{"thread_local", fx, 1150},
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{"initialization", fx, 1150},
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{"volatile", fx, 1150},
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{"mode", fx, 1150},
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{"public", fx, 1150},
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{"multifile", fx, 1150},
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{"meta_predicate", fx, 1150},
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{"module_transparent", fx, 1150},
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{"discontiguous", fx, 1150},
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#ifdef YAPOR
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{"sequential", fx, 1150},
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#endif /* YAPOR */
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#ifdef TABLING
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{"table", fx, 1150},
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#endif /* TABLING */
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#ifndef UNCUTABLE
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{"uncutable", fx, 1150},
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#endif /*UNCUTABLE ceh:*/
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{"|", xfy, 1105},
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{";", xfy, 1100},
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/* {";", yf, 1100}, not allowed in ISO */
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{"->", xfy, 1050},
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{"*->", xfy, 1050},
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{",", xfy, 1000},
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{".", xfy, 999},
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{"\\+", fy, 900},
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{"not", fy, 900},
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{"=", xfx, 700},
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{"\\=", xfx, 700},
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{"is", xfx, 700},
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{"=..", xfx, 700},
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{"==", xfx, 700},
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{"\\==", xfx, 700},
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{"@<", xfx, 700},
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{"@>", xfx, 700},
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{"@=<", xfx, 700},
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{"@>=", xfx, 700},
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{"=@=", xfx, 700},
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{"\\=@=", xfx, 700},
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{"=:=", xfx, 700},
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{"=\\=", xfx, 700},
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{"<", xfx, 700},
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{">", xfx, 700},
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{"=<", xfx, 700},
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{">=", xfx, 700},
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{"as", xfx, 600},
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{":", xfy, 600},
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{"+", yfx, 500},
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{"-", yfx, 500},
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{"/\\", yfx, 500},
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{"\\/", yfx, 500},
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{"><", yfx, 500},
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{"#", yfx, 500},
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{"rdiv", yfx, 400},
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{"div", yfx, 400},
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{"xor", yfx, 400},
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{"*", yfx, 400},
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{"/", yfx, 400},
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{"//", yfx, 400},
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{"<<", yfx, 400},
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{">>", yfx, 400},
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{"mod", yfx, 400},
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{"rem", yfx, 400},
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{"+", fy, 200},
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{"-", fy, 200},
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{"\\", fy, 200},
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{"//", yfx, 400},
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{"**", xfx, 200},
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{"^", xfy, 200}
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};
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static void
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InitOps(void)
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{
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unsigned int i;
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for (i = 0; i < sizeof(Ops) / sizeof(*Ops); ++i)
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SetOp(Ops[i].opPrio, Ops[i].opType, Ops[i].opName, PROLOG_MODULE);
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}
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/// @}
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#if DEBUG
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#ifdef HAVE_ISATTY
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#include <unistd.h>
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#endif
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#endif
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static void
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InitDebug(void)
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{
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Atom At;
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#if DEBUG
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int i;
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for (i = 1; i < 20; ++i)
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GLOBAL_Option[i] = 0;
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if (Yap_output_msg) {
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char ch;
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#if HAVE_ISATTY
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if (!isatty (0)) {
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return;
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}
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#endif
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fprintf(stderr,"absmi address:%p\n", FunAdr(Yap_absmi));
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fprintf(stderr,"Set Trace Options:\n");
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fprintf(stderr,"a getch\t\tb token\t\tc Lookup\td LookupVar\ti Index\n");
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fprintf(stderr,"e SetOp\t\tf compile\tg icode\t\th boot\t\tl log\n");
|
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fprintf(stderr,"m Machine\t p parser\n");
|
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while ((ch = putchar(getchar())) != '\n')
|
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if (ch >= 'a' && ch <= 'z')
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GLOBAL_Option[ch - 'a' + 1] = 1;
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if (GLOBAL_Option['l' - 96]) {
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GLOBAL_logfile = fopen(LOGFILE, "w");
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if (GLOBAL_logfile == NULL) {
|
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fprintf(stderr,"can not open %s\n", LOGFILE);
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getchar();
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exit(0);
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}
|
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fprintf(stderr,"logging session to file 'logfile'\n");
|
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#ifdef MAC
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Yap_SetTextFile(LOGFILE);
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lp = my_line;
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curfile = Nill;
|
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#endif
|
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}
|
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}
|
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#endif
|
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/* Set at full leash */
|
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At = AtomLeash;
|
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Yap_PutValue(At, MkIntTerm(15));
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}
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|
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static UInt
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update_flags_from_prolog(UInt flags, PredEntry *pe)
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{
|
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if (pe->PredFlags & MetaPredFlag)
|
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flags |= MetaPredFlag;
|
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if (pe->PredFlags & SourcePredFlag)
|
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flags |= SourcePredFlag;
|
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if (pe->PredFlags & SequentialPredFlag)
|
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flags |= SequentialPredFlag;
|
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if (pe->PredFlags & UDIPredFlag)
|
|
flags |= UDIPredFlag;
|
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if (pe->PredFlags & ModuleTransparentPredFlag)
|
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flags |= ModuleTransparentPredFlag;
|
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if (pe->PredFlags & StandardPredFlag)
|
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flags |= StandardPredFlag;
|
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return flags;
|
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}
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|
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void
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Yap_InitCPred(const char *Name, UInt Arity, CPredicate code, pred_flags_t flags)
|
|
{
|
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CACHE_REGS
|
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Atom atom = NIL;
|
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PredEntry *pe = NULL;
|
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yamop *p_code;
|
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StaticClause *cl = NULL;
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Functor f = NULL;
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while (atom == NIL) {
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if (flags & UserCPredFlag)
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atom = Yap_LookupAtom(Name);
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else
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atom = Yap_FullLookupAtom(Name);
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if (atom == NIL && !Yap_growheap(FALSE, 0L, NULL)) {
|
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Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
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return;
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}
|
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}
|
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if (Arity) {
|
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while (!f) {
|
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f = Yap_MkFunctor(atom,Arity);
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if (!f && !Yap_growheap(FALSE, 0L, NULL)) {
|
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Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
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return;
|
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}
|
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}
|
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}
|
|
while (pe == NULL) {
|
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if (Arity)
|
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pe = RepPredProp(PredPropByFunc(f,CurrentModule));
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else
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pe = RepPredProp(PredPropByAtom(atom,CurrentModule));
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if (!pe && !Yap_growheap(FALSE, sizeof(PredEntry), NULL)) {
|
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Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
|
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return;
|
|
}
|
|
}
|
|
if (pe->PredFlags & CPredFlag) {
|
|
/* already exists */
|
|
flags = update_flags_from_prolog(flags, pe);
|
|
cl = ClauseCodeToStaticClause(pe->CodeOfPred);
|
|
if ((flags | StandardPredFlag | CPredFlag ) != pe->PredFlags) {
|
|
Yap_ClauseSpace -= cl->ClSize;
|
|
Yap_FreeCodeSpace((ADDR)cl);
|
|
cl = NULL;
|
|
}
|
|
}
|
|
p_code = cl->ClCode;
|
|
while (!cl) {
|
|
UInt sz;
|
|
|
|
if (flags & SafePredFlag) {
|
|
sz = (CELL)NEXTOP(NEXTOP(NEXTOP(p_code,Osbpp),p),l);
|
|
} else {
|
|
sz = (CELL)NEXTOP(NEXTOP(NEXTOP(NEXTOP(NEXTOP(p_code,e),p),Osbpp),p),l);
|
|
}
|
|
cl = (StaticClause *)Yap_AllocCodeSpace(sz);
|
|
if (!cl) {
|
|
if (!Yap_growheap(FALSE, sz, NULL)) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
|
|
return;
|
|
}
|
|
} else {
|
|
Yap_ClauseSpace += sz;
|
|
cl->ClFlags = StaticMask;
|
|
cl->ClNext = NULL;
|
|
cl->ClSize = sz;
|
|
cl->usc.ClLine = Yap_source_line_no();
|
|
p_code = cl->ClCode;
|
|
}
|
|
}
|
|
pe->CodeOfPred = p_code;
|
|
pe->PredFlags = flags | StandardPredFlag | CPredFlag;
|
|
pe->src.OwnerFile = Yap_ConsultingFile( PASS_REGS1 );
|
|
pe->cs.f_code = code;
|
|
if (!(flags & SafePredFlag)) {
|
|
p_code->opc = Yap_opcode(_allocate);
|
|
p_code = NEXTOP(p_code,e);
|
|
}
|
|
if (flags & UserCPredFlag)
|
|
p_code->opc = Yap_opcode(_call_usercpred);
|
|
else
|
|
p_code->opc = Yap_opcode(_call_cpred);
|
|
p_code->y_u.Osbpp.bmap = NULL;
|
|
p_code->y_u.Osbpp.s = -Signed(RealEnvSize);
|
|
p_code->y_u.Osbpp.p =
|
|
p_code->y_u.Osbpp.p0 =
|
|
pe;
|
|
p_code = NEXTOP(p_code,Osbpp);
|
|
if (!(flags & SafePredFlag)) {
|
|
p_code->opc = Yap_opcode(_deallocate);
|
|
p_code->y_u.p.p = pe;
|
|
p_code = NEXTOP(p_code,p);
|
|
}
|
|
p_code->opc = Yap_opcode(_procceed);
|
|
p_code->y_u.p.p = pe;
|
|
p_code = NEXTOP(p_code,p);
|
|
p_code->opc = Yap_opcode(_Ystop);
|
|
p_code->y_u.l.l = cl->ClCode;
|
|
pe->OpcodeOfPred = pe->CodeOfPred->opc;
|
|
}
|
|
|
|
bool
|
|
Yap_AddCallToFli( PredEntry *pe, CPredicate call )
|
|
{
|
|
yamop *p_code;
|
|
|
|
if (pe->PredFlags & BackCPredFlag) {
|
|
p_code = (yamop *)(pe->cs.p_code.FirstClause);
|
|
p_code->y_u.OtapFs.f = call;
|
|
return true;
|
|
} else if (pe->PredFlags & CPredFlag) {
|
|
pe->cs.f_code = call;
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool
|
|
Yap_AddRetryToFli( PredEntry *pe, CPredicate re )
|
|
{
|
|
yamop *p_code;
|
|
|
|
if (pe->PredFlags & BackCPredFlag) {
|
|
p_code = (yamop *)(pe->cs.p_code.FirstClause);
|
|
p_code = NEXTOP(p_code,OtapFs);
|
|
p_code->y_u.OtapFs.f = re;
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool
|
|
Yap_AddCutToFli( PredEntry *pe, CPredicate CUT )
|
|
{
|
|
yamop *p_code;
|
|
|
|
if (pe->PredFlags & BackCPredFlag) {
|
|
p_code = (yamop *)(pe->cs.p_code.FirstClause);
|
|
p_code = NEXTOP(p_code,OtapFs);
|
|
p_code = NEXTOP(p_code,OtapFs);
|
|
p_code->y_u.OtapFs.f = CUT;
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void
|
|
Yap_InitCmpPred(const char *Name, UInt Arity, CmpPredicate cmp_code, pred_flags_t flags)
|
|
{
|
|
CACHE_REGS
|
|
Atom atom = NIL;
|
|
PredEntry *pe = NULL;
|
|
yamop *p_code = NULL;
|
|
StaticClause *cl = NULL;
|
|
Functor f = NULL;
|
|
|
|
while (atom == NIL) {
|
|
atom = Yap_FullLookupAtom(Name);
|
|
if (atom == NIL && !Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
|
|
return;
|
|
}
|
|
}
|
|
if (Arity) {
|
|
while (!f) {
|
|
f = Yap_MkFunctor(atom,Arity);
|
|
if (!f && !Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
while (pe == NULL) {
|
|
if (Arity)
|
|
pe = RepPredProp(PredPropByFunc(f,CurrentModule));
|
|
else
|
|
pe = RepPredProp(PredPropByAtom(atom,CurrentModule));
|
|
if (!pe && !Yap_growheap(FALSE, sizeof(PredEntry), NULL)) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
|
|
return;
|
|
}
|
|
}
|
|
if (pe->PredFlags & BinaryPredFlag) {
|
|
flags = update_flags_from_prolog(flags, pe);
|
|
p_code = pe->CodeOfPred;
|
|
/* already exists */
|
|
} else {
|
|
while (!cl) {
|
|
UInt sz = sizeof(StaticClause)+(CELL)NEXTOP(NEXTOP(NEXTOP(((yamop *)NULL),plxxs),p),l);
|
|
cl = (StaticClause *)Yap_AllocCodeSpace(sz);
|
|
if (!cl) {
|
|
if (!Yap_growheap(FALSE, sz, NULL)) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
|
|
return;
|
|
}
|
|
} else {
|
|
Yap_ClauseSpace += sz;
|
|
cl->ClFlags = StaticMask|StandardPredFlag;
|
|
cl->ClNext = NULL;
|
|
cl->ClSize = sz;
|
|
cl->usc.ClLine = Yap_source_line_no();
|
|
p_code = cl->ClCode;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
//pe->PredFlags = flags | StandardPredFlag;
|
|
pe->CodeOfPred = p_code;
|
|
pe->cs.d_code = cmp_code;
|
|
pe->ModuleOfPred = CurrentModule;
|
|
p_code->opc = pe->OpcodeOfPred = Yap_opcode(_call_bfunc_xx);
|
|
p_code->y_u.plxxs.p = pe;
|
|
p_code->y_u.plxxs.f = FAILCODE;
|
|
p_code->y_u.plxxs.x1 = Yap_emit_x(1);
|
|
p_code->y_u.plxxs.x2 = Yap_emit_x(2);
|
|
p_code->y_u.plxxs.flags = Yap_compile_cmp_flags(pe);
|
|
p_code = NEXTOP(p_code,plxxs);
|
|
p_code->opc = Yap_opcode(_procceed);
|
|
p_code->y_u.p.p = pe;
|
|
p_code = NEXTOP(p_code,p);
|
|
p_code->opc = Yap_opcode(_Ystop);
|
|
p_code->y_u.l.l = cl->ClCode;
|
|
}
|
|
|
|
void
|
|
Yap_InitAsmPred(const char *Name, UInt Arity, int code, CPredicate def, pred_flags_t flags)
|
|
{
|
|
CACHE_REGS
|
|
Atom atom = NIL;
|
|
PredEntry *pe = NULL;
|
|
Functor f = NULL;
|
|
|
|
while (atom == NIL) {
|
|
atom = Yap_FullLookupAtom(Name);
|
|
if (atom == NIL && !Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
|
|
return;
|
|
}
|
|
}
|
|
if (Arity) {
|
|
while (!f) {
|
|
f = Yap_MkFunctor(atom,Arity);
|
|
if (!f && !Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
while (pe == NULL) {
|
|
if (Arity)
|
|
pe = RepPredProp(PredPropByFunc(f,CurrentModule));
|
|
else
|
|
pe = RepPredProp(PredPropByAtom(atom,CurrentModule));
|
|
if (!pe && !Yap_growheap(FALSE, sizeof(PredEntry), NULL)) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
|
|
return;
|
|
}
|
|
}
|
|
flags |= AsmPredFlag | StandardPredFlag | (code);
|
|
if (pe->PredFlags & AsmPredFlag) {
|
|
flags = update_flags_from_prolog(flags, pe);
|
|
/* already exists */
|
|
}
|
|
pe->PredFlags = flags;
|
|
pe->cs.f_code = def;
|
|
pe->ModuleOfPred = CurrentModule;
|
|
if (def != NULL) {
|
|
yamop *p_code = ((StaticClause *)NULL)->ClCode;
|
|
StaticClause *cl;
|
|
|
|
if (pe->CodeOfPred == (yamop *)(&(pe->OpcodeOfPred))) {
|
|
if (flags & SafePredFlag) {
|
|
cl = (StaticClause *)Yap_AllocCodeSpace((CELL)NEXTOP(NEXTOP(NEXTOP(((yamop *)p_code),Osbpp),p),l));
|
|
} else {
|
|
cl = (StaticClause *)Yap_AllocCodeSpace((CELL)NEXTOP(NEXTOP(NEXTOP(NEXTOP(NEXTOP(((yamop *)p_code),e),Osbpp),p),p),l));
|
|
}
|
|
if (!cl) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"No Heap Space in InitAsmPred");
|
|
return;
|
|
}
|
|
Yap_ClauseSpace += (CELL)NEXTOP(NEXTOP(NEXTOP(((yamop *)p_code),Osbpp),p),l);
|
|
} else {
|
|
cl = ClauseCodeToStaticClause(pe->CodeOfPred);
|
|
}
|
|
cl->ClFlags = StaticMask;
|
|
cl->ClNext = NULL;
|
|
if (flags & SafePredFlag) {
|
|
cl->ClSize = (CELL)NEXTOP(NEXTOP(NEXTOP(((yamop *)p_code),Osbpp),e),e);
|
|
} else {
|
|
cl->ClSize = (CELL)NEXTOP(NEXTOP(NEXTOP(NEXTOP(NEXTOP(((yamop *)p_code),e),Osbpp),p),e),e);
|
|
}
|
|
cl->usc.ClLine = Yap_source_line_no();
|
|
p_code = cl->ClCode;
|
|
pe->CodeOfPred = p_code;
|
|
if (!(flags & SafePredFlag)) {
|
|
p_code->opc = Yap_opcode(_allocate);
|
|
p_code = NEXTOP(p_code,e);
|
|
}
|
|
p_code->opc = Yap_opcode(_call_cpred);
|
|
p_code->y_u.Osbpp.bmap = NULL;
|
|
p_code->y_u.Osbpp.s = -Signed(RealEnvSize);
|
|
p_code->y_u.Osbpp.p = p_code->y_u.Osbpp.p0 = pe;
|
|
p_code = NEXTOP(p_code,Osbpp);
|
|
if (!(flags & SafePredFlag)) {
|
|
p_code->opc = Yap_opcode(_deallocate);
|
|
p_code->y_u.p.p = pe;
|
|
p_code = NEXTOP(p_code,p);
|
|
}
|
|
p_code->opc = Yap_opcode(_procceed);
|
|
p_code->y_u.p.p = pe;
|
|
p_code = NEXTOP(p_code,p);
|
|
p_code->opc = Yap_opcode(_Ystop);
|
|
p_code->y_u.l.l = cl->ClCode;
|
|
pe->OpcodeOfPred = pe->CodeOfPred->opc;
|
|
} else {
|
|
pe->OpcodeOfPred = Yap_opcode(_undef_p);
|
|
pe->CodeOfPred = (yamop *)(&(pe->OpcodeOfPred));
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
CleanBack(PredEntry *pe, CPredicate Start, CPredicate Cont, CPredicate Cut)
|
|
{
|
|
yamop *code;
|
|
if (pe->cs.p_code.FirstClause != pe->cs.p_code.LastClause ||
|
|
pe->cs.p_code.TrueCodeOfPred != pe->cs.p_code.FirstClause ||
|
|
pe->CodeOfPred != pe->cs.p_code.FirstClause) {
|
|
Yap_Error(SYSTEM_ERROR_INTERNAL,TermNil,
|
|
"initiating a C Pred with backtracking");
|
|
return;
|
|
}
|
|
code = (yamop *)(pe->cs.p_code.FirstClause);
|
|
code->y_u.OtapFs.p = pe;
|
|
if (pe->PredFlags & UserCPredFlag)
|
|
code->opc = Yap_opcode(_try_userc);
|
|
else
|
|
code->opc = Yap_opcode(_try_c);
|
|
#ifdef YAPOR
|
|
INIT_YAMOP_LTT(code, 2);
|
|
PUT_YAMOP_SEQ(code);
|
|
#endif /* YAPOR */
|
|
code->y_u.OtapFs.f = Start;
|
|
code = NEXTOP(code,OtapFs);
|
|
if (pe->PredFlags & UserCPredFlag)
|
|
code->opc = Yap_opcode(_retry_userc);
|
|
else
|
|
code->opc = Yap_opcode(_retry_c);
|
|
#ifdef YAPOR
|
|
INIT_YAMOP_LTT(code, 1);
|
|
PUT_YAMOP_SEQ(code);
|
|
#endif /* YAPOR */
|
|
code->y_u.OtapFs.f = Cont;
|
|
code = NEXTOP(code,OtapFs);
|
|
if (pe->PredFlags & UserCPredFlag)
|
|
code->opc = Yap_opcode(_cut_c);
|
|
else
|
|
code->opc = Yap_opcode(_cut_userc);
|
|
code->y_u.OtapFs.p = pe;
|
|
code->y_u.OtapFs.f = Cut;
|
|
}
|
|
|
|
void
|
|
Yap_InitCPredBack(const char *Name, UInt Arity,
|
|
unsigned int Extra, CPredicate Start,
|
|
CPredicate Cont, pred_flags_t flags){
|
|
Yap_InitCPredBack_(Name,Arity,Extra,Start,Cont,NULL,flags);
|
|
}
|
|
|
|
void
|
|
Yap_InitCPredBackCut(const char *Name, UInt Arity,
|
|
unsigned int Extra, CPredicate Start,
|
|
CPredicate Cont,CPredicate Cut, pred_flags_t flags){
|
|
Yap_InitCPredBack_(Name,Arity,Extra,Start,Cont,Cut,flags);
|
|
}
|
|
|
|
void
|
|
Yap_InitCPredBack_(const char *Name, UInt Arity,
|
|
unsigned int Extra, CPredicate Start,
|
|
CPredicate Cont, CPredicate Cut, pred_flags_t flags)
|
|
{
|
|
CACHE_REGS
|
|
PredEntry *pe = NULL;
|
|
Atom atom = NIL;
|
|
Functor f = NULL;
|
|
|
|
while (atom == NIL) {
|
|
atom = Yap_FullLookupAtom(Name);
|
|
if (atom == NIL && !Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
|
|
return;
|
|
}
|
|
}
|
|
if (Arity) {
|
|
while (!f) {
|
|
f = Yap_MkFunctor(atom,Arity);
|
|
if (!f && !Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
while (pe == NULL) {
|
|
if (Arity)
|
|
pe = RepPredProp(PredPropByFunc(f,CurrentModule));
|
|
else
|
|
pe = RepPredProp(PredPropByAtom(atom,CurrentModule));
|
|
if (!pe && !Yap_growheap(FALSE, sizeof(PredEntry), NULL)) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"while initializing %s", Name);
|
|
return;
|
|
}
|
|
}
|
|
if (pe->cs.p_code.FirstClause != NIL)
|
|
{
|
|
flags = update_flags_from_prolog(flags, pe);
|
|
CleanBack(pe, Start, Cont, Cut);
|
|
}
|
|
else {
|
|
StaticClause *cl;
|
|
yamop *code = ((StaticClause *)NULL)->ClCode;
|
|
UInt sz = (CELL)NEXTOP(NEXTOP(NEXTOP(NEXTOP(code,OtapFs),OtapFs),OtapFs),l);
|
|
if (flags & UserCPredFlag)
|
|
pe->PredFlags = UserCPredFlag | BackCPredFlag| CompiledPredFlag | flags;
|
|
else
|
|
pe->PredFlags = CompiledPredFlag | StandardPredFlag | BackCPredFlag;
|
|
|
|
#ifdef YAPOR
|
|
pe->PredFlags |= SequentialPredFlag;
|
|
#endif /* YAPOR */
|
|
|
|
cl = (StaticClause *)Yap_AllocCodeSpace(sz);
|
|
|
|
if (cl == NULL) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP,TermNil,"No Heap Space in InitCPredBack");
|
|
return;
|
|
}
|
|
cl->ClFlags = StaticMask;
|
|
cl->ClNext = NULL;
|
|
Yap_ClauseSpace += sz;
|
|
cl->ClSize =
|
|
(CELL)NEXTOP(NEXTOP(NEXTOP(NEXTOP(code,OtapFs),OtapFs),OtapFs),e);
|
|
cl->usc.ClLine = Yap_source_line_no();
|
|
|
|
code = cl->ClCode;
|
|
pe->cs.p_code.TrueCodeOfPred = pe->CodeOfPred =
|
|
pe->cs.p_code.FirstClause = pe->cs.p_code.LastClause = code;
|
|
if (flags & UserCPredFlag)
|
|
pe->OpcodeOfPred = code->opc = Yap_opcode(_try_userc);
|
|
else
|
|
pe->OpcodeOfPred = code->opc = Yap_opcode(_try_c);
|
|
code->y_u.OtapFs.f = Start;
|
|
code->y_u.OtapFs.p = pe;
|
|
code->y_u.OtapFs.s = Arity;
|
|
code->y_u.OtapFs.extra = Extra;
|
|
#ifdef YAPOR
|
|
INIT_YAMOP_LTT(code, 2);
|
|
PUT_YAMOP_SEQ(code);
|
|
#endif /* YAPOR */
|
|
code = NEXTOP(code,OtapFs);
|
|
if (flags & UserCPredFlag)
|
|
code->opc = Yap_opcode(_retry_userc);
|
|
else
|
|
code->opc = Yap_opcode(_retry_c);
|
|
code->y_u.OtapFs.f = Cont;
|
|
code->y_u.OtapFs.p = pe;
|
|
code->y_u.OtapFs.s = Arity;
|
|
code->y_u.OtapFs.extra = Extra;
|
|
#ifdef YAPOR
|
|
INIT_YAMOP_LTT(code, 1);
|
|
PUT_YAMOP_SEQ(code);
|
|
#endif /* YAPOR */
|
|
code = NEXTOP(code,OtapFs);
|
|
if (flags & UserCPredFlag)
|
|
code->opc = Yap_opcode(_cut_userc);
|
|
else
|
|
code->opc = Yap_opcode(_cut_c);
|
|
code->y_u.OtapFs.f = Cut;
|
|
code->y_u.OtapFs.p = pe;
|
|
code->y_u.OtapFs.s = Arity;
|
|
code->y_u.OtapFs.extra = Extra;
|
|
code = NEXTOP(code,OtapFs);
|
|
code->opc = Yap_opcode(_Ystop);
|
|
code->y_u.l.l = cl->ClCode;
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
InitStdPreds(void)
|
|
{
|
|
Yap_InitCPreds();
|
|
Yap_InitBackCPreds();
|
|
BACKUP_MACHINE_REGS();
|
|
Yap_InitPlIO();
|
|
Yap_InitFlags(false);
|
|
#if HAVE_MPE
|
|
Yap_InitMPE ();
|
|
#endif
|
|
}
|
|
|
|
|
|
static void
|
|
InitPredHash(void)
|
|
{
|
|
UInt i;
|
|
|
|
PredHash = (PredEntry **)Yap_AllocAtomSpace(sizeof(PredEntry **) * PredHashInitialSize);
|
|
PredHashTableSize = PredHashInitialSize;
|
|
if (PredHash == NULL) {
|
|
Yap_Error(SYSTEM_ERROR_FATAL,MkIntTerm(0),"allocating initial predicate hash table");
|
|
}
|
|
for (i = 0; i < PredHashTableSize; ++i) {
|
|
PredHash[i] = NULL;
|
|
}
|
|
INIT_RWLOCK(PredHashRWLock);
|
|
}
|
|
|
|
static void
|
|
InitEnvInst(yamop start[2], yamop **instp, op_numbers opc, PredEntry *pred)
|
|
{
|
|
yamop *ipc = start;
|
|
|
|
/* make it look like the instruction is preceeded by a call instruction */
|
|
ipc->opc = Yap_opcode(_call);
|
|
ipc->y_u.Osbpp.s = -Signed(RealEnvSize);
|
|
ipc->y_u.Osbpp.bmap = NULL;
|
|
ipc->y_u.Osbpp.p = pred;
|
|
ipc->y_u.Osbpp.p0 = pred;
|
|
ipc = NEXTOP(ipc, Osbpp);
|
|
ipc->opc = Yap_opcode(opc);
|
|
*instp = ipc;
|
|
}
|
|
|
|
static void
|
|
InitOtaplInst(yamop start[1], OPCODE opc, PredEntry *pe)
|
|
{
|
|
yamop *ipc = start;
|
|
|
|
/* this is a place holder, it should not really be used */
|
|
ipc->opc = Yap_opcode(opc);
|
|
ipc->y_u.Otapl.s = 0;
|
|
ipc->y_u.Otapl.p = pe;
|
|
ipc->y_u.Otapl.d = NULL;
|
|
#ifdef YAPOR
|
|
INIT_YAMOP_LTT(ipc, 1);
|
|
#endif /* YAPOR */
|
|
#ifdef TABLING
|
|
ipc->y_u.Otapl.te = NULL;
|
|
#endif /* TABLING */
|
|
}
|
|
|
|
static void
|
|
InitDBErasedMarker(void)
|
|
{
|
|
Yap_heap_regs->db_erased_marker =
|
|
(DBRef)Yap_AllocCodeSpace(sizeof(DBStruct));
|
|
Yap_LUClauseSpace += sizeof(DBStruct);
|
|
Yap_heap_regs->db_erased_marker->id = FunctorDBRef;
|
|
Yap_heap_regs->db_erased_marker->Flags = ErasedMask;
|
|
Yap_heap_regs->db_erased_marker->Code = NULL;
|
|
Yap_heap_regs->db_erased_marker->DBT.DBRefs = NULL;
|
|
Yap_heap_regs->db_erased_marker->Parent = NULL;
|
|
}
|
|
|
|
static void
|
|
InitLogDBErasedMarker(void)
|
|
{
|
|
Yap_heap_regs->logdb_erased_marker =
|
|
(LogUpdClause *)Yap_AllocCodeSpace(sizeof(LogUpdClause)+(UInt)NEXTOP((yamop*)NULL,e));
|
|
Yap_LUClauseSpace += sizeof(LogUpdClause)+(UInt)NEXTOP((yamop*)NULL,e);
|
|
Yap_heap_regs->logdb_erased_marker->Id = FunctorDBRef;
|
|
Yap_heap_regs->logdb_erased_marker->ClFlags = ErasedMask|LogUpdMask;
|
|
Yap_heap_regs->logdb_erased_marker->lusl.ClSource = NULL;
|
|
Yap_heap_regs->logdb_erased_marker->ClRefCount = 0;
|
|
Yap_heap_regs->logdb_erased_marker->ClExt = NULL;
|
|
Yap_heap_regs->logdb_erased_marker->ClPrev = NULL;
|
|
Yap_heap_regs->logdb_erased_marker->ClNext = NULL;
|
|
Yap_heap_regs->logdb_erased_marker->ClSize = (UInt)NEXTOP(((LogUpdClause *)NULL)->ClCode,e);
|
|
Yap_heap_regs->logdb_erased_marker->ClCode->opc = Yap_opcode(_op_fail);
|
|
INIT_CLREF_COUNT(Yap_heap_regs->logdb_erased_marker);
|
|
}
|
|
|
|
static void
|
|
InitSWIAtoms(void)
|
|
{
|
|
MaxAtomTranslations = N_SWI_ATOMS ;
|
|
MaxFunctorTranslations = N_SWI_FUNCTORS ;
|
|
SWI_Atoms = (Atom *)malloc(sizeof(Atom)*MaxAtomTranslations);
|
|
SWI_Functors = (Functor *)malloc(sizeof(Functor)*2*N_SWI_ATOMS);
|
|
}
|
|
|
|
static void
|
|
InitEmptyWakeups(void)
|
|
{
|
|
}
|
|
|
|
static void
|
|
InitAtoms(void)
|
|
{
|
|
int i;
|
|
AtomHashTableSize = MaxHash;
|
|
HashChain = (AtomHashEntry *)Yap_AllocAtomSpace(sizeof(AtomHashEntry) * MaxHash);
|
|
if (HashChain == NULL) {
|
|
Yap_Error(SYSTEM_ERROR_FATAL,MkIntTerm(0),"allocating initial atom table");
|
|
}
|
|
for (i = 0; i < MaxHash; ++i) {
|
|
INIT_RWLOCK(HashChain[i].AERWLock);
|
|
HashChain[i].Entry = NIL;
|
|
}
|
|
NOfAtoms = 0;
|
|
#if OLD_STYLE_INITIAL_ATOMS
|
|
Yap_LookupAtomWithAddress("**",(AtomEntry *)&(SF_STORE->AtFoundVar));
|
|
Yap_ReleaseAtom(AtomFoundVar);
|
|
Yap_LookupAtomWithAddress("?",(AtomEntry *)&(SF_STORE->AtFreeTerm));
|
|
Yap_ReleaseAtom(AtomFreeTerm);
|
|
Yap_LookupAtomWithAddress("[]",(AtomEntry *)&(SF_STORE->AtNil));
|
|
Yap_LookupAtomWithAddress(".",(AtomEntry *)&(SF_STORE->AtDot));
|
|
#else
|
|
SF_STORE->AtFoundVar = Yap_LookupAtom("**");
|
|
Yap_ReleaseAtom(AtomFoundVar);
|
|
SF_STORE->AtFreeTerm = Yap_LookupAtom("?");
|
|
Yap_ReleaseAtom(AtomFreeTerm);
|
|
SF_STORE->AtNil = Yap_LookupAtom("[]");
|
|
SF_STORE->AtDot = Yap_LookupAtom(".");
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
InitWideAtoms(void)
|
|
{
|
|
int i;
|
|
|
|
WideAtomHashTableSize = MaxWideHash;
|
|
WideHashChain = (AtomHashEntry *)Yap_AllocAtomSpace(sizeof(AtomHashEntry) * MaxWideHash);
|
|
if (WideHashChain == NULL) {
|
|
Yap_Error(SYSTEM_ERROR_FATAL,MkIntTerm(0),"allocating wide atom table");
|
|
}
|
|
for (i = 0; i < MaxWideHash; ++i) {
|
|
INIT_RWLOCK(WideHashChain[i].AERWLock);
|
|
WideHashChain[i].Entry = NIL;
|
|
}
|
|
NOfWideAtoms = 0;
|
|
}
|
|
|
|
static void
|
|
InitInvisibleAtoms(void)
|
|
{
|
|
/* initialize invisible chain */
|
|
Yap_heap_regs->invisiblechain.Entry = NIL;
|
|
INIT_RWLOCK(Yap_heap_regs->invisiblechain.AERWLock);
|
|
}
|
|
|
|
|
|
#ifdef YAPOR
|
|
void Yap_init_yapor_workers(void) {
|
|
CACHE_REGS
|
|
int proc;
|
|
#ifdef YAPOR_THREADS
|
|
return;
|
|
#endif /* YAPOR_THREADS */
|
|
#ifdef YAPOR_COW
|
|
GLOBAL_master_worker = getpid();
|
|
if (GLOBAL_number_workers > 1) {
|
|
int son;
|
|
son = fork();
|
|
if (son == -1)
|
|
Yap_Error(SYSTEM_ERROR_FATAL, TermNil, "fork error (Yap_init_yapor_workers)");
|
|
if (son > 0) {
|
|
/* I am the father, I must stay here and wait for my children to all die */
|
|
struct sigaction sigact;
|
|
sigact.sa_handler = SIG_DFL;
|
|
sigemptyset(&sigact.sa_mask);
|
|
sigact.sa_flags = SA_RESTART;
|
|
sigaction(SIGINT, &sigact, NULL);
|
|
pause();
|
|
exit(0);
|
|
} else
|
|
GLOBAL_worker_pid(0) = getpid();
|
|
}
|
|
#endif /* YAPOR_COW */
|
|
for (proc = 1; proc < GLOBAL_number_workers; proc++) {
|
|
int son;
|
|
son = fork();
|
|
if (son == -1)
|
|
Yap_Error(SYSTEM_ERROR_FATAL, TermNil, "fork error (Yap_init_yapor_workers)");
|
|
if (son == 0) {
|
|
/* new worker */
|
|
worker_id = proc;
|
|
Yap_remap_yapor_memory();
|
|
LOCAL = REMOTE(worker_id);
|
|
memcpy(REMOTE(worker_id), REMOTE(0), sizeof(struct worker_local));
|
|
InitWorker(worker_id);
|
|
break;
|
|
} else
|
|
GLOBAL_worker_pid(proc) = son;
|
|
}
|
|
}
|
|
#endif /* YAPOR */
|
|
|
|
|
|
#ifdef THREADS
|
|
static void
|
|
InitThreadHandle(int wid)
|
|
{
|
|
REMOTE_ThreadHandle(wid).in_use = FALSE;
|
|
REMOTE_ThreadHandle(wid).zombie = FALSE;
|
|
REMOTE_ThreadHandle(wid).local_preds = NULL;
|
|
#ifdef LOW_LEVEL_TRACER
|
|
REMOTE_ThreadHandle(wid).thread_inst_count = 0LL;
|
|
#endif
|
|
pthread_mutex_init(&(REMOTE_ThreadHandle(wid).tlock), NULL);
|
|
pthread_mutex_init(&(REMOTE_ThreadHandle(wid).tlock_status), NULL);
|
|
REMOTE_ThreadHandle(wid).tdetach = (CELL)0;
|
|
REMOTE_ThreadHandle(wid).cmod = (CELL)0;
|
|
{
|
|
mbox_t * mboxp = &REMOTE_ThreadHandle(wid).mbox_handle;
|
|
pthread_mutex_t *mutexp;
|
|
pthread_cond_t *condp;
|
|
struct idb_queue *msgsp;
|
|
|
|
mboxp->name = MkIntTerm(0);
|
|
condp = & mboxp->cond;
|
|
pthread_cond_init(condp, NULL);
|
|
mutexp = & mboxp->mutex;
|
|
pthread_mutex_init(mutexp, NULL);
|
|
msgsp = & mboxp->msgs;
|
|
mboxp->nmsgs = 0;
|
|
mboxp->nclients = 0;
|
|
mboxp->open = true;
|
|
Yap_init_tqueue(msgsp);
|
|
}
|
|
|
|
}
|
|
|
|
int
|
|
Yap_InitThread(int new_id)
|
|
{
|
|
struct worker_local *new_s;
|
|
if (new_id) {
|
|
if (!(new_s = (struct worker_local *)calloc(sizeof(struct worker_local), 1)))
|
|
return FALSE;
|
|
Yap_local[new_id] = new_s;
|
|
if (!((REGSTORE *)pthread_getspecific(Yap_yaamregs_key))) {
|
|
REGSTORE *rs = (REGSTORE *)calloc(sizeof(REGSTORE),1);
|
|
pthread_setspecific(Yap_yaamregs_key, (const void *)rs);
|
|
REMOTE_ThreadHandle(new_id).default_yaam_regs = rs;
|
|
REMOTE_ThreadHandle(new_id).current_yaam_regs = rs;
|
|
rs->worker_id_ = new_id;
|
|
rs->worker_local_ = REMOTE(new_id);
|
|
}
|
|
}
|
|
InitWorker(new_id);
|
|
return TRUE;
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
InitScratchPad(int wid)
|
|
{
|
|
REMOTE_ScratchPad(wid).ptr = NULL;
|
|
REMOTE_ScratchPad(wid).sz = SCRATCH_START_SIZE;
|
|
REMOTE_ScratchPad(wid).msz = SCRATCH_START_SIZE;
|
|
}
|
|
|
|
static CELL *
|
|
InitHandles(int wid) {
|
|
size_t initial_slots = 1024;
|
|
CELL *handles;
|
|
|
|
REMOTE_CurSlot(wid) = 1;
|
|
REMOTE_NSlots(wid) = initial_slots;
|
|
handles = calloc(initial_slots , sizeof(CELL));
|
|
|
|
if(handles == NULL) {
|
|
Yap_Error(SYSTEM_ERROR_INTERNAL, 0 /* TermNil */, "No space for handles at " __FILE__ " : %d", __LINE__);
|
|
}
|
|
|
|
RESET_VARIABLE(handles);
|
|
return handles;
|
|
}
|
|
|
|
void
|
|
Yap_CloseScratchPad(void)
|
|
{
|
|
CACHE_REGS
|
|
Yap_FreeCodeSpace(LOCAL_ScratchPad.ptr);
|
|
LOCAL_ScratchPad.sz = SCRATCH_START_SIZE;
|
|
LOCAL_ScratchPad.msz = SCRATCH_START_SIZE;
|
|
}
|
|
|
|
#include "iglobals.h"
|
|
#include "ilocals.h"
|
|
|
|
|
|
#if defined(YAPOR_COPY) || defined(YAPOR_COW) || defined(YAPOR_SBA)
|
|
struct global_data *Yap_global;
|
|
long Yap_worker_area_size;
|
|
#else
|
|
struct global_data Yap_Global;
|
|
#endif
|
|
|
|
#if defined(THREADS)
|
|
struct worker_local *Yap_local[MAX_THREADS];
|
|
#elif defined(YAPOR)
|
|
struct worker_local *Yap_local;
|
|
#else /* !THREADS && !YAPOR */
|
|
struct worker_local Yap_local;
|
|
#endif
|
|
|
|
static void
|
|
InitCodes(void)
|
|
{
|
|
CACHE_REGS
|
|
#if THREADS
|
|
int wid;
|
|
for (wid = 1; wid < MAX_THREADS; wid++) {
|
|
Yap_local[wid] = NULL;
|
|
}
|
|
#endif
|
|
#include "ihstruct.h"
|
|
#if THREADS
|
|
Yap_InitThread(0);
|
|
#endif /* THREADS */
|
|
InitGlobal();
|
|
#if !THREADS
|
|
InitWorker(0);
|
|
#endif /* THREADS */
|
|
Yap_InitFirstWorkerThreadHandle();
|
|
/* make sure no one else can use these two atoms */
|
|
LOCAL_SourceModule = CurrentModule = 0;
|
|
Yap_ReleaseAtom(AtomOfTerm(TermRefoundVar));
|
|
/* flags require atom table done, but must be done as soon as possible,
|
|
definitely before any predicate initialization */
|
|
// Yap_InitFlags(); moved to HEAPFIELDS
|
|
/* make sure we have undefp defined */
|
|
/* predicates can only be defined after this point */
|
|
{
|
|
/* make sure we know about the module predicate */
|
|
PredEntry *modp = RepPredProp(PredPropByFunc(FunctorModule,PROLOG_MODULE));
|
|
modp->PredFlags |= MetaPredFlag;
|
|
}
|
|
#ifdef YAPOR
|
|
Yap_heap_regs->getwork_code->y_u.Otapl.p = RepPredProp(PredPropByAtom(AtomGetwork, PROLOG_MODULE));
|
|
Yap_heap_regs->getwork_seq_code->y_u.Otapl.p = RepPredProp(PredPropByAtom(AtomGetworkSeq, PROLOG_MODULE));
|
|
#endif /* YAPOR */
|
|
|
|
}
|
|
|
|
|
|
static void
|
|
InitVersion(void)
|
|
{
|
|
Yap_PutValue(AtomVersionNumber,
|
|
MkAtomTerm(Yap_LookupAtom(YAP_FULL_VERSION)));
|
|
}
|
|
|
|
void
|
|
Yap_InitWorkspace(UInt Heap, UInt Stack, UInt Trail, UInt Atts, UInt max_table_size,
|
|
int n_workers, int sch_loop, int delay_load)
|
|
{
|
|
CACHE_REGS
|
|
|
|
/* initialize system stuff */
|
|
#if PUSH_REGS
|
|
#ifdef THREADS
|
|
if (!(Yap_local[0] = (struct worker_local *)calloc(sizeof(struct worker_local), 1)))
|
|
return;
|
|
pthread_key_create(&Yap_yaamregs_key, NULL);
|
|
pthread_setspecific(Yap_yaamregs_key, (const void *)&Yap_standard_regs);
|
|
GLOBAL_master_thread = pthread_self();
|
|
#else
|
|
/* In this case we need to initialize the abstract registers */
|
|
Yap_regp = &Yap_standard_regs;
|
|
/* the emulator will eventually copy them to its own local
|
|
register array, but for now they exist */
|
|
#endif
|
|
#endif /* PUSH_REGS */
|
|
|
|
#ifdef THREADS
|
|
Yap_regp = ((REGSTORE *)pthread_getspecific(Yap_yaamregs_key));
|
|
LOCAL = REMOTE(0);
|
|
#endif /* THREADS */
|
|
#if defined(YAPOR_COPY) || defined(YAPOR_COW) || defined(YAPOR_SBA)
|
|
LOCAL = REMOTE(0);
|
|
#endif /* YAPOR_COPY || YAPOR_COW || YAPOR_SBA */
|
|
if (Heap < MinHeapSpace)
|
|
Heap = MinHeapSpace;
|
|
Heap = AdjustPageSize(Heap * K);
|
|
Heap /= (K);
|
|
/* sanity checking for data areas */
|
|
if (Trail < MinTrailSpace)
|
|
Trail = MinTrailSpace;
|
|
Trail = AdjustPageSize(Trail * K);
|
|
Trail /= (K);
|
|
if (Stack < MinStackSpace)
|
|
Stack = MinStackSpace;
|
|
Stack = AdjustPageSize(Stack * K);
|
|
Stack /= (K);
|
|
if (!Atts)
|
|
Atts = 2048*sizeof(CELL);
|
|
else
|
|
Atts = AdjustPageSize(Atts * K);
|
|
Atts /= (K);
|
|
#if defined(THREADS) || defined(YAPOR)
|
|
worker_id = 0;
|
|
#endif /* YAPOR || THREADS */
|
|
#ifdef YAPOR
|
|
if (n_workers > MAX_WORKERS)
|
|
Yap_Error(SYSTEM_ERROR_INTERNAL, TermNil, "excessive number of workers");
|
|
#ifdef YAPOR_COPY
|
|
INFORMATION_MESSAGE("YapOr: copy model with %d worker%s", n_workers, n_workers == 1 ? "":"s");
|
|
#elif YAPOR_COW
|
|
INFORMATION_MESSAGE("YapOr: acow model with %d worker%s", n_workers, n_workers == 1 ? "":"s");
|
|
#elif YAPOR_SBA
|
|
INFORMATION_MESSAGE("YapOr: sba model with %d worker%s", n_workers, n_workers == 1 ? "":"s");
|
|
#elif YAPOR_THREADS
|
|
INFORMATION_MESSAGE("YapOr: threads model with %d worker%s", n_workers, n_workers == 1 ? "":"s");
|
|
#endif /* YAPOR_COPY - YAPOR_COW - YAPOR_SBA - YAPOR_THREADS */
|
|
#endif /* YAPOR */
|
|
#if defined(YAPOR_COPY) || defined(YAPOR_COW) || defined(YAPOR_SBA)
|
|
Yap_init_yapor_stacks_memory(Trail, Heap, Stack+Atts, n_workers);
|
|
#else
|
|
Yap_InitMemory(Trail, Heap, Stack+Atts);
|
|
#endif
|
|
#if defined(YAPOR) || defined(TABLING)
|
|
Yap_init_global_optyap_data(max_table_size, n_workers, sch_loop, delay_load);
|
|
#endif /* YAPOR || TABLING */
|
|
|
|
Yap_AttsSize = Atts;
|
|
Yap_InitTime( 0 );
|
|
/* InitAbsmi must be done before InitCodes */
|
|
/* This must be done before initializing predicates */
|
|
#ifdef MPW
|
|
Yap_InitAbsmi(REGS, FunctorList);
|
|
#else
|
|
Yap_InitAbsmi();
|
|
#endif
|
|
InitCodes();
|
|
InitOps();
|
|
InitDebug();
|
|
InitVersion();
|
|
#if THREADS
|
|
/* make sure we use the correct value of regcache */
|
|
regcache = ((REGSTORE *)pthread_getspecific(Yap_yaamregs_key));
|
|
#endif
|
|
#if USE_SYSTEM_MALLOC
|
|
if (Trail < MinTrailSpace)
|
|
Trail = MinTrailSpace;
|
|
if (Stack < MinStackSpace)
|
|
Stack = MinStackSpace;
|
|
if (!(LOCAL_GlobalBase = (ADDR)malloc((Trail+Stack)*1024))) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP, 0, "could not allocate stack space for main thread");
|
|
Yap_exit(1);
|
|
}
|
|
#if THREADS
|
|
/* don't forget this is a thread */
|
|
LOCAL_ThreadHandle.stack_address = LOCAL_GlobalBase;
|
|
LOCAL_ThreadHandle.tsize = Trail;
|
|
LOCAL_ThreadHandle.ssize = Stack;
|
|
#endif
|
|
#endif
|
|
GLOBAL_AllowGlobalExpansion = TRUE;
|
|
GLOBAL_AllowLocalExpansion = TRUE;
|
|
GLOBAL_AllowTrailExpansion = TRUE;
|
|
Yap_InitExStacks (0, Trail, Stack);
|
|
Yap_InitYaamRegs( 0 );
|
|
InitStdPreds();
|
|
/* make sure tmp area is available */
|
|
{
|
|
Yap_ReleasePreAllocCodeSpace(Yap_PreAllocCodeSpace());
|
|
}
|
|
}
|
|
|
|
int
|
|
Yap_HaltRegisterHook (HaltHookFunc f, void * env)
|
|
{
|
|
struct halt_hook *h;
|
|
|
|
if (!(h = (struct halt_hook *)Yap_AllocCodeSpace(sizeof(struct halt_hook))))
|
|
return FALSE;
|
|
h->environment = env;
|
|
h->hook = f;
|
|
LOCK(GLOBAL_BGL);
|
|
h->next = GLOBAL_HaltHooks;
|
|
GLOBAL_HaltHooks = h;
|
|
UNLOCK(GLOBAL_BGL);
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
run_halt_hooks(int code)
|
|
{
|
|
struct halt_hook *hooke = GLOBAL_HaltHooks;
|
|
|
|
while (hooke) {
|
|
hooke->hook(code, hooke->environment);
|
|
hooke = hooke->next;
|
|
}
|
|
}
|
|
|
|
void
|
|
Yap_exit (int value)
|
|
{
|
|
CACHE_REGS
|
|
void closeFiles(int all);
|
|
#if defined(YAPOR_COPY) || defined(YAPOR_COW) || defined(YAPOR_SBA)
|
|
Yap_unmap_yapor_memory();
|
|
#endif /* YAPOR_COPY || YAPOR_COW || YAPOR_SBA */
|
|
|
|
if (! (LOCAL_PrologMode & BootMode) ) {
|
|
#ifdef LOW_PROF
|
|
remove("PROFPREDS");
|
|
remove("PROFILING");
|
|
#endif
|
|
run_halt_hooks(value);
|
|
Yap_ShutdownLoadForeign();
|
|
}
|
|
Yap_CloseStreams (false);
|
|
exit(value);
|
|
}
|