757 lines
18 KiB
C
757 lines
18 KiB
C
/*************************************************************************
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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: Yap.C *
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* Last Rev: *
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* Mods: *
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* Comments: Yap's Main File *
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* *
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*************************************************************************/
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/* static char SccsId[] = "X 4.3.3"; */
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#include "config.h"
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#include "YapInterface.h"
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#ifdef CUT_C
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#include "cut_c.h"
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#endif
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#if (DefTrailSpace < MinTrailSpace)
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#undef DefTrailSpace
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#define DefTrailSpace MinTrailSpace
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#endif
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#if (DefStackSpace < MinStackSpace)
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#undef DefStackSpace
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#define DefStackSpace MinStackSpace
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#endif
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#if (DefHeapSpace < MinHeapSpace)
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#undef DefHeapSpace
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#define DefHeapSpace MinHeapSpace
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#endif
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#define DEFAULT_NUMBERWORKERS 1
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#define DEFAULT_SCHEDULERLOOP 10
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#define DEFAULT_DELAYEDRELEASELOAD 3
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#ifdef _MSC_VER /* Microsoft's Visual C++ Compiler */
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#ifdef HAVE_UNISTD_H
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#undef HAVE_UNISTD_H
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#endif
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#endif
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#include <stdio.h>
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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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#if HAVE_STDARG_H
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#include <stdarg.h>
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#endif
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#include <stdlib.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#if HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#if HAVE_CTYPE_H
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#include <ctype.h>
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#endif
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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 void PROTO(do_top_goal,(YAP_Term));
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static void PROTO(exec_top_level,(int, YAP_init_args *));
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#ifdef DEBUG
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static int output_msg;
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#endif
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#ifdef lint
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/* VARARGS1 */
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#endif
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#ifdef M_WILLIAMS
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long _stksize = 32000;
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#endif
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/* nf: Begin preprocessor code */
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#define MAXDEFS 100
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static char *def_var[MAXDEFS];
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static char *def_value[MAXDEFS];
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static int def_c=0;
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/* End preprocessor code */
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#ifdef USE_MYPUTC
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static void
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myputc (int ch)
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{
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putc(ch,stderr);
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}
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#endif
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static void
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do_top_goal (YAP_Term Goal)
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{
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#ifdef DEBUG
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if (output_msg)
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fprintf(stderr,"Entering absmi\n");
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#endif
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YAP_RunGoalOnce(Goal);
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}
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static void
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print_usage(void)
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{
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fprintf(stderr,"\n[ Valid switches for command line arguments: ]\n");
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fprintf(stderr," -? Shows this screen\n");
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fprintf(stderr," -b Boot file \n");
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fprintf(stderr," -dump-runtime-variables\n");
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fprintf(stderr," -f initialization file or \"none\"\n");
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fprintf(stderr," -g Run Goal Before Top-Level \n");
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fprintf(stderr," -z Run Goal Before Top-Level \n");
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fprintf(stderr," -q start with informational messages off\n");
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fprintf(stderr," -l load Prolog file\n");
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fprintf(stderr," -L run Prolog file and exit\n");
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fprintf(stderr," -p extra path for file-search-path\n");
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fprintf(stderr," -hSize Heap area in Kbytes (default: %d, minimum: %d)\n",
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DefHeapSpace, MinHeapSpace);
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fprintf(stderr," -sSize Stack area in Kbytes (default: %d, minimum: %d)\n",
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DefStackSpace, MinStackSpace);
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fprintf(stderr," -tSize Trail area in Kbytes (default: %d, minimum: %d)\n",
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DefTrailSpace, MinTrailSpace);
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fprintf(stderr," -GSize Max Area for Global Stack\n");
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fprintf(stderr," -LSize Max Area for Local Stack (number must follow L)\n");
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fprintf(stderr," -TSize Max Area for Trail (number must follow L)\n");
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fprintf(stderr,"\n[Execution Modes]\n");
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fprintf(stderr," -J0 Interpreted mode (default)\n");
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fprintf(stderr," -J1 Mixed mode only for user predicates\n");
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fprintf(stderr," -J2 Mixed mode for all predicates\n");
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fprintf(stderr," -J3 Compile all user predicates\n");
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fprintf(stderr," -J4 Compile all predicates\n");
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#ifdef TABLING
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fprintf(stderr," -ts Maximum table space area in Mbytes (default: unlimited)\n");
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#endif /* TABLING */
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#if defined(ENV_COPY) || defined(ACOW) || defined(SBA)
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fprintf(stderr," -w Number of workers (default: %d)\n",
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DEFAULT_NUMBERWORKERS);
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fprintf(stderr," -sl Loop scheduler executions before look for hiden shared work (default: %d)\n",
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DEFAULT_SCHEDULERLOOP);
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fprintf(stderr," -d Value of delayed release of load (default: %d)\n",
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DEFAULT_DELAYEDRELEASELOAD);
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#endif /* ENV_COPY || ACOW || SBA */
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/* nf: Preprocessor */
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/* fprintf(stderr," -DVar=Name Persistent definition\n"); */
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fprintf(stderr,"\n");
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}
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static int
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myisblank(int c)
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{
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switch (c) {
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case ' ':
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case '\t':
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case '\n':
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case '\r':
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return TRUE;
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default:
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return FALSE;
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}
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}
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static char *
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add_end_dot(char arg[])
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{
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int sz = strlen(arg), i;
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i = sz;
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while (i && myisblank(arg[--i]));
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if (i && arg[i] != ',') {
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char *p = (char *)malloc(sz+2);
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if (!p)
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return NULL;
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strncpy(p,arg,sz);
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p[sz] = '.';
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p[sz+1] = '\0';
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return p;
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}
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return arg;
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}
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static int
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dump_runtime_variables(void)
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{
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fprintf(stdout,"CC=\"%s\"\n",YAP_CC);
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fprintf(stdout,"YAP_ROOTDIR=\"%s\"\n",YAP_ROOTDIR);
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fprintf(stdout,"YAP_LIBS=\"%s\"\n",YAP_LIBS);
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fprintf(stdout,"YAP_SHLIB_SUFFIX=\"%s\"\n",YAP_SHLIB_SUFFIX);
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fprintf(stdout,"YAP_VERSION=%d\n",YAP_VERSION);
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exit(0);
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return 1;
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}
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/*
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* proccess command line arguments: valid switches are: -b boot -s
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* stack area size (K) -h heap area size -a aux stack size -e
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* emacs_mode -m -DVar=Value reserved memory for alloc IF DEBUG -p if you
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* want to check out startup IF MAC -mpw if we are using the mpw
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* shell
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*/
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static int
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parse_yap_arguments(int argc, char *argv[], YAP_init_args *iap)
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{
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char *p;
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#ifdef USE_SYSTEM_MALLOC
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int BootMode = YAP_FULL_BOOT_FROM_PROLOG;
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#else
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int BootMode = YAP_BOOT_FROM_SAVED_CODE;
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#endif
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#ifdef MYDDAS_MYSQL
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char *myddas_temp;
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#endif
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unsigned long int *ssize;
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while (--argc > 0)
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{
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p = *++argv;
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if (*p == '-')
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switch (*++p)
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{
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case 'b':
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BootMode = YAP_BOOT_FROM_PROLOG;
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iap->YapPrologBootFile = *++argv;
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argc--;
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break;
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case '?':
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print_usage();
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exit(EXIT_SUCCESS);
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case 'q':
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iap->QuietMode = TRUE;
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break;
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#if defined(ENV_COPY) || defined(ACOW) || defined(SBA)
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case 'w':
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ssize = &(iap->NumberWorkers);
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goto GetSize;
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case 'd':
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if (!strcmp("dump-runtime-variables",p))
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return dump_runtime_variables();
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ssize = &(iap->DelayedReleaseLoad);
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goto GetSize;
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#else
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case 'd':
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if (!strcmp("dump-runtime-variables",p))
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return dump_runtime_variables();
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#endif /* ENV_COPY || ACOW || SBA */
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#ifdef USE_SOCKET
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case 'c': /* running as client */
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{
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char *host, *p1;
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long port;
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char *ptr;
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host = *++argv;
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argc--;
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if (host == NULL || host[0] == '-')
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YAP_Error(0,0L,"sockets must receive host to connect to");
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p1 = *++argv;
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argc--;
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if (p1 == NULL || p1[0] == '-')
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YAP_Error(0,0L,"sockets must receive port to connect to");
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port = strtol(p1, &ptr, 10);
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if (ptr == NULL || ptr[0] != '\0')
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YAP_Error(0,0L,"port argument to socket must be a number");
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YAP_InitSocks(host,port);
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}
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break;
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#endif
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#ifdef EMACS
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case 'e':
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emacs_mode = TRUE;
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{
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File fd;
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strcpy (emacs_tmp, ++p);
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if ((fd = fopen (emacs_tmp, "w")) == NIL)
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fprintf(stderr, "[ Warning: unable to communicate with emacs: failed to open %s ]\n", emacs_tmp);
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fclose (fd);
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unlink (emacs_tmp);
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p = *++argv;
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--argc;
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strcpy (emacs_tmp2, p);
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if ((fd = fopen (emacs_tmp2, "w")) == NIL)
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fprintf(stderr, "Unable to communicate with emacs: failed to open %s\n", emacs_tmp2);
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fclose (fd);
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unlink (emacs_tmp2);
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}
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break;
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#endif /* EMACS */
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case 'F':
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/* just ignore for now */
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argc--;
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argv++;
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break;
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case 'f':
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if (argc > 1 && argv[1][0] != '-') {
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argc--;
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argv++;
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if (!strcmp(*argv,"none")) {
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iap->FastBoot = TRUE;
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} else {
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iap->YapPrologRCFile = *argv;
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}
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break;
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}
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iap->FastBoot = TRUE;
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break;
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#ifdef MYDDAS_MYSQL
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case 'm':
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if (strncmp(p,"myddas_",7) == 0)
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{
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iap->myddas = 1;
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if ((*argv)[0] == '\0')
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myddas_temp = *argv;
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else {
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argc--;
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if (argc == 0) {
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fprintf(stderr," [ YAP unrecoverable error: missing file name with option 'l' ]\n");
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exit(EXIT_FAILURE);
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}
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argv++;
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myddas_temp = *argv;
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}
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if (strstr(p,"user") != NULL)
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iap->myddas_user = myddas_temp;
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else if (strstr(p,"pass") != NULL)
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iap->myddas_pass = myddas_temp;
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else if (strstr(p,"db") != NULL)
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iap->myddas_db = myddas_temp;
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else if (strstr(p,"host") != NULL)
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iap->myddas_host = myddas_temp;
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else
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goto myddas_error_print;
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break;
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}
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#endif
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#ifdef MPWSHELL
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case 'm':
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if (*++p == 'p' && *++p == 'w' && *++p == '\0')
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mpwshell = TRUE;
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break;
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#endif
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// execution mode
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case 'J':
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switch (p[1]) {
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case '0':
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iap->ExecutionMode = YAPC_INTERPRETED;
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break;
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case '1':
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iap->ExecutionMode = YAPC_MIXED_MODE_USER;
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break;
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case '2':
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iap->ExecutionMode = YAPC_MIXED_MODE_ALL;
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break;
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case '3':
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iap->ExecutionMode = YAPC_COMPILE_USER;
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break;
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case '4':
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iap->ExecutionMode = YAPC_COMPILE_ALL;
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break;
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default:
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fprintf(stderr,"[ YAP unrecoverable error: unknown switch -%c%c ]\n", *p, p[1]);
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exit(EXIT_FAILURE);
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}
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p++;
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break;
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case 'G':
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ssize = &(iap->MaxGlobalSize);
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goto GetSize;
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break;
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case 's':
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case 'S':
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ssize = &(iap->StackSize);
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#if defined(ENV_COPY) || defined(ACOW) || defined(SBA)
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if (p[1] == 'l') {
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p++;
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ssize = &(iap->SchedulerLoop);
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}
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#endif /* ENV_COPY || ACOW || SBA */
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goto GetSize;
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case 'a':
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case 'A':
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ssize = &(iap->AttsSize);
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goto GetSize;
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case 'T':
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ssize = &(iap->MaxTrailSize);
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goto get_trail_size;
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case 't':
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ssize = &(iap->TrailSize);
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#ifdef TABLING
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if (p[1] == 's') {
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p++;
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ssize = &(iap->MaxTableSpaceSize);
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}
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#endif /* TABLING */
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get_trail_size:
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if (*++p == '\0')
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{
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if (argc > 1)
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--argc, p = *++argv;
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else
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{
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fprintf(stderr,"[ YAP unrecoverable error: missing size in flag %s ]", argv[0]);
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print_usage();
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exit(EXIT_FAILURE);
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}
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}
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{
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unsigned long int i = 0, ch;
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while ((ch = *p++) >= '0' && ch <= '9')
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i = i * 10 + ch - '0';
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switch(ch) {
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case 'M':
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case 'm':
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i *= 1024;
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ch = *p++;
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break;
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case 'g':
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i *= 1024*1024;
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ch = *p++;
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break;
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case 'k':
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case 'K':
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ch = *p++;
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break;
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}
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if (ch) {
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iap->YapPrologTopLevelGoal = add_end_dot(*argv);
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} else {
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*ssize = i;
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}
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}
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break;
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case 'h':
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case 'H':
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ssize = &(iap->HeapSize);
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GetSize:
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if (*++p == '\0')
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{
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if (argc > 1)
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--argc, p = *++argv;
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else
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{
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fprintf(stderr,"[ YAP unrecoverable error: missing size in flag %s ]", argv[0]);
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print_usage();
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exit(EXIT_FAILURE);
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}
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}
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{
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unsigned long int i = 0, ch;
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while ((ch = *p++) >= '0' && ch <= '9')
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i = i * 10 + ch - '0';
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switch(ch) {
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case 'M':
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case 'm':
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i *= 1024;
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ch = *p++;
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break;
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case 'g':
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case 'G':
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i *= 1024*1024;
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ch = *p++;
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break;
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case 'k':
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case 'K':
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ch = *p++;
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break;
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}
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if (ch)
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{
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fprintf(stderr,"[ YAP unrecoverable error: illegal size specification %s ]", argv[-1]);
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YAP_Exit(1);
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}
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*ssize = i;
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}
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break;
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#ifdef DEBUG
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case 'P':
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YAP_SetOutputMessage();
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output_msg = TRUE;
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break;
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#endif
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case 'L':
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if (p[1] && p[1] >= '0' && p[1] <= '9') /* hack to emulate SWI's L local option */
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{
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ssize = &(iap->MaxStackSize);
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goto GetSize;
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}
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iap->QuietMode = TRUE;
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iap->HaltAfterConsult = TRUE;
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case 'l':
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p++;
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if (!*++argv) {
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fprintf(stderr,"%% YAP unrecoverable error: missing load file name\n");
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exit(1);
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} else if (!strcmp("--",*argv)) {
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/* shell script, the next entry should be the file itself */
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iap->YapPrologRCFile = argv[1];
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argc = 1;
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break;
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} else {
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iap->YapPrologRCFile = *argv;
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argc--;
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}
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if (*p) {
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/* we have something, usually, of the form:
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-L --
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FileName
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ExtraArgs
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*/
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/* being called from a script */
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while (*p && (*p == ' ' || *p == '\t'))
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p++;
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if (p[0] == '-' && p[1] == '-') {
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/* ignore what is next */
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argc = 1;
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}
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}
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break;
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/* run goal before top-level */
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case 'g':
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if ((*argv)[0] == '\0')
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iap->YapPrologGoal = *argv;
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else {
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argc--;
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if (argc == 0) {
|
|
fprintf(stderr," [ YAP unrecoverable error: missing initialization goal for option 'g' ]\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
argv++;
|
|
iap->YapPrologGoal = *argv;
|
|
}
|
|
break;
|
|
/* run goal as top-level */
|
|
case 'z':
|
|
if ((*argv)[0] == '\0')
|
|
iap->YapPrologTopLevelGoal = *argv;
|
|
else {
|
|
argc--;
|
|
if (argc == 0) {
|
|
fprintf(stderr," [ YAP unrecoverable error: missing goal for option 'z' ]\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
argv++;
|
|
iap->YapPrologTopLevelGoal = add_end_dot(*argv);
|
|
}
|
|
break;
|
|
case 'p':
|
|
if ((*argv)[0] == '\0')
|
|
iap->YapPrologAddPath = *argv;
|
|
else {
|
|
argc--;
|
|
if (argc == 0) {
|
|
fprintf(stderr," [ YAP unrecoverable error: missing paths for option 'p' ]\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
argv++;
|
|
iap->YapPrologAddPath = *argv;
|
|
}
|
|
break;
|
|
/* nf: Begin preprocessor code */
|
|
case 'D':
|
|
{
|
|
char *var, *value;
|
|
++p;
|
|
var = p;
|
|
if (var == NULL || *var=='\0')
|
|
break;
|
|
while(*p!='=' && *p!='\0') ++p;
|
|
if ( *p=='\0' ) break;
|
|
*p='\0';
|
|
++p;
|
|
value=p;
|
|
if ( *value == '\0' ) break;
|
|
++def_c;
|
|
def_var[def_c-1]=var;
|
|
def_value[def_c-1]=value;
|
|
break;
|
|
}
|
|
/* End preprocessor code */
|
|
case '-':
|
|
/* skip remaining arguments */
|
|
argc = 1;
|
|
break;
|
|
default:
|
|
{
|
|
#ifdef MYDDAS_MYSQL
|
|
myddas_error_print :
|
|
#endif
|
|
fprintf(stderr,"[ YAP unrecoverable error: unknown switch -%c ]\n", *p);
|
|
#ifdef MYDDAS_MYSQL
|
|
myddas_error :
|
|
#endif
|
|
print_usage();
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
else {
|
|
iap->SavedState = p;
|
|
}
|
|
}
|
|
#ifdef MYDDAS_MYSQL
|
|
/* Check MYDDAS Arguments */
|
|
if (iap->myddas_user != NULL || iap->myddas_pass != NULL
|
|
|| iap->myddas_db != NULL || iap->myddas_host != NULL)
|
|
if (iap->myddas_user == NULL || iap->myddas_db == NULL){
|
|
fprintf(stderr,"[ YAP unrecoverable error: Missing Mandatory Arguments for MYDDAS ]\n");
|
|
goto myddas_error;
|
|
}
|
|
#endif
|
|
return BootMode;
|
|
}
|
|
|
|
static int
|
|
init_standard_system(int argc, char *argv[], YAP_init_args *iap)
|
|
{
|
|
int BootMode;
|
|
|
|
iap->SavedState = NULL;
|
|
iap->HeapSize = 0;
|
|
iap->StackSize = 0;
|
|
iap->TrailSize = 0;
|
|
iap->AttsSize = 0;
|
|
iap->MaxAttsSize = 0;
|
|
iap->MaxHeapSize = 0;
|
|
iap->MaxStackSize = 0;
|
|
iap->MaxGlobalSize = 0;
|
|
iap->MaxTrailSize = 0;
|
|
iap->YapLibDir = NULL;
|
|
iap->YapPrologBootFile = NULL;
|
|
iap->YapPrologInitFile = NULL;
|
|
iap->YapPrologRCFile = NULL;
|
|
iap->YapPrologGoal = NULL;
|
|
iap->YapPrologTopLevelGoal = NULL;
|
|
iap->YapPrologAddPath = NULL;
|
|
iap->HaltAfterConsult = FALSE;
|
|
iap->FastBoot = FALSE;
|
|
iap->MaxTableSpaceSize = 0;
|
|
iap->NumberWorkers = DEFAULT_NUMBERWORKERS;
|
|
iap->SchedulerLoop = DEFAULT_SCHEDULERLOOP;
|
|
iap->DelayedReleaseLoad = DEFAULT_DELAYEDRELEASELOAD;
|
|
iap->PrologShouldHandleInterrupts = TRUE;
|
|
iap->ExecutionMode = YAPC_INTERPRETED;
|
|
iap->Argc = argc;
|
|
iap->Argv = argv;
|
|
#ifdef MYDDAS_MYSQL
|
|
iap->myddas = 0;
|
|
iap->myddas_user = NULL;
|
|
iap->myddas_pass = NULL;
|
|
iap->myddas_db = NULL;
|
|
iap->myddas_host = NULL;
|
|
#endif
|
|
iap->ErrorNo = 0;
|
|
iap->ErrorCause = NULL;
|
|
iap->QuietMode = FALSE;
|
|
|
|
BootMode = parse_yap_arguments(argc,argv,iap);
|
|
|
|
/* init memory */
|
|
if (BootMode == YAP_BOOT_FROM_PROLOG ||
|
|
BootMode == YAP_FULL_BOOT_FROM_PROLOG) {
|
|
int NewBootMode = YAP_Init(iap);
|
|
if (NewBootMode != YAP_BOOT_FROM_PROLOG && BootMode != YAP_FULL_BOOT_FROM_PROLOG)
|
|
BootMode = NewBootMode;
|
|
} else {
|
|
BootMode = YAP_Init(iap);
|
|
}
|
|
if (iap->ErrorNo) {
|
|
/* boot failed */
|
|
YAP_Error(iap->ErrorNo,0L,iap->ErrorCause);
|
|
}
|
|
return BootMode;
|
|
}
|
|
|
|
|
|
static void
|
|
exec_top_level(int BootMode, YAP_init_args *iap)
|
|
{
|
|
YAP_Term atomfalse;
|
|
YAP_Atom livegoal;
|
|
|
|
if (BootMode == YAP_BOOT_FROM_SAVED_STACKS)
|
|
{
|
|
/* continue executing from the frozen stacks */
|
|
YAP_ContinueGoal();
|
|
}
|
|
/* the top-level is now ready */
|
|
|
|
/* read it before case someone, that is, Ashwin, hides
|
|
the atom false away ;-).
|
|
*/
|
|
livegoal = YAP_FullLookupAtom("$live");
|
|
atomfalse = YAP_MkAtomTerm (YAP_FullLookupAtom("$false"));
|
|
while (YAP_GetValue (livegoal) != atomfalse) {
|
|
YAP_Reset();
|
|
do_top_goal (YAP_MkAtomTerm (livegoal));
|
|
}
|
|
YAP_Exit(EXIT_SUCCESS);
|
|
}
|
|
|
|
#ifdef LIGHT
|
|
int
|
|
_main (int argc, char **argv)
|
|
#else
|
|
int
|
|
main (int argc, char **argv)
|
|
#endif
|
|
{
|
|
int BootMode;
|
|
YAP_init_args init_args;
|
|
int i;
|
|
|
|
|
|
BootMode = init_standard_system(argc, argv, &init_args);
|
|
if (BootMode == YAP_BOOT_ERROR) {
|
|
fprintf(stderr,"[ FATAL ERROR: could not find saved state ]\n");
|
|
exit(1);
|
|
}
|
|
/* Begin preprocessor code */
|
|
{
|
|
// load the module
|
|
YAP_Term mod_arg[1];
|
|
mod_arg[0] = YAP_MkAtomTerm(YAP_LookupAtom("ypp"));
|
|
YAP_RunGoalOnce(YAP_MkApplTerm(YAP_MkFunctor(YAP_LookupAtom("use_module"),1), 1, mod_arg));
|
|
// process the definitions
|
|
for(i=0;i<def_c;++i) {
|
|
YAP_Term t_args[2],t_goal;
|
|
t_args[0] = YAP_MkAtomTerm(YAP_LookupAtom(def_var[i]));
|
|
t_args[1] = YAP_MkAtomTerm(YAP_LookupAtom(def_value[i]));
|
|
t_goal = YAP_MkApplTerm(YAP_MkFunctor(YAP_LookupAtom("ypp_define"),2), 2, t_args);
|
|
YAP_RunGoalOnce(t_goal);
|
|
}
|
|
}
|
|
YAP_ClearExceptions();
|
|
/* End preprocessor code */
|
|
|
|
exec_top_level(BootMode, &init_args);
|
|
|
|
return(0);
|
|
}
|
|
|