This repository has been archived on 2023-08-20. You can view files and clone it, but cannot push or open issues or pull requests.
yap-6.3/console/yap.c
2010-01-26 23:24:15 +00:00

749 lines
18 KiB
C

/*************************************************************************
* *
* Yap Prolog *
* *
* Yap Prolog Was Developed At Nccup - Universidade Do Porto *
* *
* Copyright L.Damas, V.S.Costa And Universidade Do Porto 1985-1997 *
* *
**************************************************************************
* *
* File: Yap.C *
* Last Rev: *
* Mods: *
* Comments: Yap's Main File *
* *
*************************************************************************/
/* static char SccsId[] = "X 4.3.3"; */
#include "config.h"
#include "YapInterface.h"
#ifdef CUT_C
#include "cut_c.h"
#endif
#if (DefTrailSpace < MinTrailSpace)
#undef DefTrailSpace
#define DefTrailSpace MinTrailSpace
#endif
#if (DefStackSpace < MinStackSpace)
#undef DefStackSpace
#define DefStackSpace MinStackSpace
#endif
#if (DefHeapSpace < MinHeapSpace)
#undef DefHeapSpace
#define DefHeapSpace MinHeapSpace
#endif
#define DEFAULT_NUMBERWORKERS 1
#define DEFAULT_SCHEDULERLOOP 10
#define DEFAULT_DELAYEDRELEASELOAD 3
#ifdef _MSC_VER /* Microsoft's Visual C++ Compiler */
#ifdef HAVE_UNISTD_H
#undef HAVE_UNISTD_H
#endif
#endif
#include <stdio.h>
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#if HAVE_FCNTL_H
#include <fcntl.h>
#endif
#if HAVE_STDARG_H
#include <stdarg.h>
#endif
#include <stdlib.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_ERRNO_H
#include <errno.h>
#endif
#if HAVE_CTYPE_H
#include <ctype.h>
#endif
#if HAVE_STRING_H
#include <string.h>
#endif
static void PROTO(do_top_goal,(YAP_Term));
static void PROTO(exec_top_level,(int, YAP_init_args *));
#ifdef DEBUG
static int output_msg;
#endif
#ifdef lint
/* VARARGS1 */
#endif
#ifdef M_WILLIAMS
long _stksize = 32000;
#endif
/* nf: Begin preprocessor code */
#define MAXDEFS 100
static char *def_var[MAXDEFS];
static char *def_value[MAXDEFS];
static int def_c=0;
/* End preprocessor code */
#ifdef USE_MYPUTC
static void
myputc (int ch)
{
putc(ch,stderr);
}
#endif
static void
do_top_goal (YAP_Term Goal)
{
#ifdef DEBUG
if (output_msg)
fprintf(stderr,"Entering absmi\n");
#endif
YAP_RunGoalOnce(Goal);
}
static void
print_usage(void)
{
fprintf(stderr,"\n[ Valid switches for command line arguments: ]\n");
fprintf(stderr," -? Shows this screen\n");
fprintf(stderr," -b Boot file \n");
fprintf(stderr," -dump-runtime-variables\n");
fprintf(stderr," -f initialization file or \"none\"\n");
fprintf(stderr," -g Run Goal Before Top-Level \n");
fprintf(stderr," -z Run Goal Before Top-Level \n");
fprintf(stderr," -q start with informational messages off\n");
fprintf(stderr," -l load Prolog file\n");
fprintf(stderr," -L run Prolog file and exit\n");
fprintf(stderr," -p extra path for file-search-path\n");
fprintf(stderr," -h Heap area in Kbytes (default: %d, minimum: %d)\n",
DefHeapSpace, MinHeapSpace);
fprintf(stderr," -s Stack area in Kbytes (default: %d, minimum: %d)\n",
DefStackSpace, MinStackSpace);
fprintf(stderr," -t Trail area in Kbytes (default: %d, minimum: %d)\n",
DefTrailSpace, MinTrailSpace);
fprintf(stderr,"\n[Execution Modes]\n");
fprintf(stderr," -J0 Interpreted mode (default)\n");
fprintf(stderr," -J1 Mixed mode only for user predicates\n");
fprintf(stderr," -J2 Mixed mode for all predicates\n");
fprintf(stderr," -J3 Compile all user predicates\n");
fprintf(stderr," -J4 Compile all predicates\n");
#ifdef TABLING
fprintf(stderr," -ts Maximum table space area in Mbytes (default: unlimited)\n");
#endif /* TABLING */
#if defined(ENV_COPY) || defined(ACOW) || defined(SBA)
fprintf(stderr," -w Number of workers (default: %d)\n",
DEFAULT_NUMBERWORKERS);
fprintf(stderr," -sl Loop scheduler executions before look for hiden shared work (default: %d)\n",
DEFAULT_SCHEDULERLOOP);
fprintf(stderr," -d Value of delayed release of load (default: %d)\n",
DEFAULT_DELAYEDRELEASELOAD);
#endif /* ENV_COPY || ACOW || SBA */
/* nf: Preprocessor */
/* fprintf(stderr," -DVar=Name Persistent definition\n"); */
fprintf(stderr,"\n");
}
static int
myisblank(int c)
{
switch (c) {
case ' ':
case '\t':
case '\n':
case '\r':
return TRUE;
default:
return FALSE;
}
}
static char *
add_end_dot(char arg[])
{
int sz = strlen(arg), i;
i = sz;
while (i && myisblank(arg[--i]));
if (i && arg[i] != ',') {
char *p = (char *)malloc(sz+2);
if (!p)
return NULL;
strncpy(p,arg,sz);
p[sz] = '.';
p[sz+1] = '\0';
return p;
}
return arg;
}
static int
dump_runtime_variables(void)
{
fprintf(stderr,"CC=\"%s\"\n",YAP_CC);
fprintf(stderr,"YAP_ROOTDIR=\"%s\"\n",YAP_ROOTDIR);
fprintf(stderr,"YAP_LIBS=\"%s\"\n",YAP_LIBS);
fprintf(stderr,"YAP_SHLIB_SUFFIX=\"%s\"\n",YAP_SHLIB_SUFFIX);
fprintf(stderr,"YAP_VERSION=%d\n",YAP_VERSION);
exit(0);
return 1;
}
/*
* proccess command line arguments: valid switches are: -b boot -s
* stack area size (K) -h heap area size -a aux stack size -e
* emacs_mode -m -DVar=Value reserved memory for alloc IF DEBUG -p if you
* want to check out startup IF MAC -mpw if we are using the mpw
* shell
*/
static int
parse_yap_arguments(int argc, char *argv[], YAP_init_args *iap)
{
char *p;
#ifdef USE_SYSTEM_MALLOC
int BootMode = YAP_FULL_BOOT_FROM_PROLOG;
#else
int BootMode = YAP_BOOT_FROM_SAVED_CODE;
#endif
#ifdef MYDDAS_MYSQL
char *myddas_temp;
#endif
unsigned long int *ssize;
while (--argc > 0)
{
p = *++argv;
if (*p == '-')
switch (*++p)
{
case 'b':
BootMode = YAP_BOOT_FROM_PROLOG;
iap->YapPrologBootFile = *++argv;
argc--;
break;
case '?':
print_usage();
exit(EXIT_SUCCESS);
case 'q':
iap->QuietMode = TRUE;
break;
#if defined(ENV_COPY) || defined(ACOW) || defined(SBA)
case 'w':
ssize = &(iap->NumberWorkers);
goto GetSize;
case 'd':
if (!strcmp("dump-runtime-variables",p))
return dump_runtime_variables();
ssize = &(iap->DelayedReleaseLoad);
goto GetSize;
#else
case 'd':
if (!strcmp("dump-runtime-variables",p))
return dump_runtime_variables();
#endif /* ENV_COPY || ACOW || SBA */
#ifdef USE_SOCKET
case 'c': /* running as client */
{
char *host, *p1;
long port;
char *ptr;
host = *++argv;
argc--;
if (host == NULL || host[0] == '-')
YAP_Error(0,0L,"sockets must receive host to connect to");
p1 = *++argv;
argc--;
if (p1 == NULL || p1[0] == '-')
YAP_Error(0,0L,"sockets must receive port to connect to");
port = strtol(p1, &ptr, 10);
if (ptr == NULL || ptr[0] != '\0')
YAP_Error(0,0L,"port argument to socket must be a number");
YAP_InitSocks(host,port);
}
break;
#endif
#ifdef EMACS
case 'e':
emacs_mode = TRUE;
{
File fd;
strcpy (emacs_tmp, ++p);
if ((fd = fopen (emacs_tmp, "w")) == NIL)
fprintf(stderr, "[ Warning: unable to communicate with emacs: failed to open %s ]\n", emacs_tmp);
fclose (fd);
unlink (emacs_tmp);
p = *++argv;
--argc;
strcpy (emacs_tmp2, p);
if ((fd = fopen (emacs_tmp2, "w")) == NIL)
fprintf(stderr, "Unable to communicate with emacs: failed to open %s\n", emacs_tmp2);
fclose (fd);
unlink (emacs_tmp2);
}
break;
#endif /* EMACS */
case 'f':
if (argc > 1 && argv[1][0] != '-') {
argc--;
argv++;
if (!strcmp(*argv,"none")) {
iap->FastBoot = TRUE;
} else {
iap->YapPrologRCFile = *argv;
}
break;
}
iap->FastBoot = TRUE;
break;
#ifdef MYDDAS_MYSQL
case 'm':
if (strncmp(p,"myddas_",7) == 0)
{
iap->myddas = 1;
if ((*argv)[0] == '\0')
myddas_temp = *argv;
else {
argc--;
if (argc == 0) {
fprintf(stderr," [ YAP unrecoverable error: missing file name with option 'l' ]\n");
exit(EXIT_FAILURE);
}
argv++;
myddas_temp = *argv;
}
if (strstr(p,"user") != NULL)
iap->myddas_user = myddas_temp;
else if (strstr(p,"pass") != NULL)
iap->myddas_pass = myddas_temp;
else if (strstr(p,"db") != NULL)
iap->myddas_db = myddas_temp;
else if (strstr(p,"host") != NULL)
iap->myddas_host = myddas_temp;
else
goto myddas_error_print;
break;
}
#endif
#ifdef MPWSHELL
case 'm':
if (*++p == 'p' && *++p == 'w' && *++p == '\0')
mpwshell = TRUE;
break;
#endif
// execution mode
case 'J':
switch (p[1]) {
case '0':
iap->ExecutionMode = YAPC_INTERPRETED;
break;
case '1':
iap->ExecutionMode = YAPC_MIXED_MODE_USER;
break;
case '2':
iap->ExecutionMode = YAPC_MIXED_MODE_ALL;
break;
case '3':
iap->ExecutionMode = YAPC_COMPILE_USER;
break;
case '4':
iap->ExecutionMode = YAPC_COMPILE_ALL;
break;
default:
fprintf(stderr,"[ YAP unrecoverable error: unknown switch -%c%c ]\n", *p, p[1]);
exit(EXIT_FAILURE);
}
p++;
break;
case 'G':
ssize = &(iap->MaxGlobalSize);
goto GetSize;
break;
case 's':
case 'S':
ssize = &(iap->StackSize);
#if defined(ENV_COPY) || defined(ACOW) || defined(SBA)
if (p[1] == 'l') {
p++;
ssize = &(iap->SchedulerLoop);
}
#endif /* ENV_COPY || ACOW || SBA */
goto GetSize;
case 'a':
case 'A':
ssize = &(iap->AttsSize);
goto GetSize;
case 'T':
ssize = &(iap->MaxTrailSize);
goto get_trail_size;
case 't':
ssize = &(iap->TrailSize);
#ifdef TABLING
if (p[1] == 's') {
p++;
ssize = &(iap->MaxTableSpaceSize);
}
#endif /* TABLING */
get_trail_size:
if (*++p == '\0')
{
if (argc > 1)
--argc, p = *++argv;
else
{
fprintf(stderr,"[ YAP unrecoverable error: missing size in flag %s ]", argv[0]);
print_usage();
exit(EXIT_FAILURE);
}
}
{
unsigned long int i = 0, ch;
while ((ch = *p++) >= '0' && ch <= '9')
i = i * 10 + ch - '0';
switch(ch) {
case 'M':
case 'm':
i *= 1024;
ch = *p++;
break;
case 'g':
i *= 1024*1024;
ch = *p++;
break;
case 'k':
case 'K':
ch = *p++;
break;
}
if (ch) {
iap->YapPrologTopLevelGoal = add_end_dot(*argv);
} else {
*ssize = i;
}
}
break;
case 'h':
case 'H':
ssize = &(iap->HeapSize);
GetSize:
if (*++p == '\0')
{
if (argc > 1)
--argc, p = *++argv;
else
{
fprintf(stderr,"[ YAP unrecoverable error: missing size in flag %s ]", argv[0]);
print_usage();
exit(EXIT_FAILURE);
}
}
{
unsigned long int i = 0, ch;
while ((ch = *p++) >= '0' && ch <= '9')
i = i * 10 + ch - '0';
switch(ch) {
case 'M':
case 'm':
i *= 1024;
ch = *p++;
break;
case 'g':
case 'G':
i *= 1024*1024;
ch = *p++;
break;
case 'k':
case 'K':
ch = *p++;
break;
}
if (ch)
{
fprintf(stderr,"[ YAP unrecoverable error: illegal size specification %s ]", argv[-1]);
YAP_Exit(1);
}
*ssize = i;
}
break;
#ifdef DEBUG
case 'P':
YAP_SetOutputMessage();
output_msg = TRUE;
break;
#endif
case 'L':
if (p[1] && p[1] >= '0' && p[1] <= '9') /* hack to emulate SWI's L local option */
{
ssize = &(iap->MaxStackSize);
goto GetSize;
}
iap->QuietMode = TRUE;
iap->HaltAfterConsult = TRUE;
case 'l':
p++;
if (!*++argv) {
fprintf(stderr,"%% YAP unrecoverable error: missing load file name\n");
exit(1);
} else if (!strcmp("--",*argv)) {
/* shell script, the next entry should be the file itself */
iap->YapPrologRCFile = argv[1];
argc = 1;
break;
} else {
iap->YapPrologRCFile = *argv;
argc--;
}
if (*p) {
/* we have something, usually, of the form:
-L --
FileName
ExtraArgs
*/
/* being called from a script */
while (*p && (*p == ' ' || *p == '\t'))
p++;
if (p[0] == '-' && p[1] == '-') {
/* ignore what is next */
argc = 1;
}
}
break;
/* run goal before top-level */
case 'g':
if ((*argv)[0] == '\0')
iap->YapPrologGoal = *argv;
else {
argc--;
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);
}