+++ /dev/null
-/* Loglan82 Compiler&Interpreter
- Copyright (C) 1993 Institute of Informatics, University of Warsaw
- Copyright (C) 1993, 1994 LITA, Pau
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- contacts: Andrzej.Salwicki@univ-pau.fr
-
-or Andrzej Salwicki
- LITA Departement d'Informatique
- Universite de Pau
- Avenue de l'Universite
- 64000 Pau FRANCE
- tel. ++33 59923154 fax. ++33 59841696
-
-=======================================================================
-*/
-
-#include "depend.h"
-#include "genint.h"
-#include "int.h"
-#include "process.h"
-#include "intproto.h"
-
-#include <stdio.h>
-
-/* File I/O routines */
-
-void loadfile(status, ftype, am, fp) /* Load parameters of current file */
-word status; /* expected status of file */
-word *ftype; /* file type */
-word *am; /* file object address */
-FILE **fp; /* file stream pointer */
-{
- word s;
- virtaddr virt;
-
- loadvirt(virt, currfile);
- if (member(&virt, am)) /* file object exists */
- {
- s = M[ *am+FSTAT ]; /* check status */
- if (status != s && status != UNKNOWN) errsignal(RTEILLIO);
- *ftype = M[ *am+FTYPE ];
- *fp = MF(*am+FFILE);
- }
- else errsignal(RTEREFTN); /* file not opened yet */
-} /* end loadfile */
-
-
-/* Open file object
- */
-
-void genfileobj(ftemp, ftyp, fnam, virt, am)
-bool ftemp; /* TRUE iff file is temporary */
-word ftyp; /* file type */
-char *fnam; /* file name */
-virtaddr *virt; /* output virtual address */
-word *am; /* output physical address */
-{
- word t1;
-
- request((word) APFILE, &t1, am); /* generate file object */
- virt->addr = t1;
- virt->mark = M[ t1+1 ];
- M[ *am+PROTNUM ] = FILEOBJECT;
- M[ *am+FSTAT ] = UNKNOWN;
- M[ *am+FTEMP ] = lbool(ftemp);
- M[ *am+FTYPE ] = ftyp;
- MN(*am+FNAME) = fnam;
-} /* end genfileobj */
-
-
-void reset(am) /* Prepare file for reading */
-word am;
-{
- FILE *fp;
-
- if (M[ am+FSTAT ] != UNKNOWN) /* first close file if opened */
- if (fclose(MF(am+FFILE))) errsignal(RTEIOERR);
- switch ((int) M[ am+FTYPE ])
- {
- case TEXTF : /* open text file for reading */
- fp = fopen(MN(am+FNAME), "r");
- M[ am+FSTAT ] = READING;
- break;
-
- case CHARF : /* open binary file for reading */
- case INTF :
- case REALF :
- fp = fopen(MN(am+FNAME), BINARYREAD);
- M[ am+FSTAT ] = READING;
- break;
-
- case DIRECT : /* open existing file for update */
- fp = fopen(MN(am+FNAME), DIRECTOLD);
- M[ am+FSTAT ] = UPDATING;
- break;
- }
- if (fp == NULL)
- {
- M[ am+FSTAT ] = UNKNOWN;
- errsignal(RTECNTOP);
- }
- MF(am+FFILE) = fp; /* store stream pointer */
-} /* end reset */
-
-
-void rewrite(am) /* Prepare file for writing */
-word am;
-{
- FILE *fp;
-
- if (M[ am+FSTAT ] != UNKNOWN) /* first close file if opened */
- if (fclose(MF(am+FFILE))) errsignal(RTEIOERR);
-
- switch ((int) M[ am+FTYPE ])
- {
- case TEXTF : /* open text file for writing */
- fp = fopen(MN(am+FNAME), "w");
- M[ am+FSTAT ] = WRITING;
- break;
-
- case CHARF : /* open binary file for writing */
- case INTF :
- case REALF :
- fp = fopen(MN(am+FNAME), BINARYWRITE);
- M[ am+FSTAT ] = WRITING;
- break;
-
- case DIRECT : /* create new file for update */
- fp = fopen(MN(am+FNAME), DIRECTNEW);
- M[ am+FSTAT ] = UPDATING;
- break;
- }
- if (fp == NULL)
- {
- M[ am+FSTAT ] = UNKNOWN;
- errsignal(RTECNTOP);
- }
- MF(am+FFILE) = fp; /* store stream pointer */
-} /* end rewrite */
-
-
-void delete(virt) /* Delete file */
-virtaddr *virt;
-{
- word am;
-
- if (member(virt, &am))
- {
- if (M[ am+FSTAT ] != UNKNOWN) /* first close file if opened */
- if (fclose(MF(am+FFILE))) errsignal(RTEIOERR);
- if (unlink(MN(am+FNAME))) errsignal(RTEIOERR); /* delete file */
- free(MN(am+FNAME)); /* free memory used by file name */
- disp(virt); /* and kill file object */
- }
- else errsignal(RTEREFTN);
-} /* end delete */
-
-
-char *tempfilename() /* Generate temporary file name */
-{
- char *cp;
- static int tempcnt = 0;
-
- cp = ballocate(10);
- if (cp == NULL) errsignal(RTEMEMOV);
- sprintf(cp, "LOG%05d", tempcnt++);
- return (cp);
-} /* end tempfilename */
-
-
-bool testeof(fp) /* Test for end of file */
-FILE *fp;
-{
- int ch;
-
- ch = getc(fp);
- ungetc(ch, fp);
- return (ch == EOF);
-} /* end testeof */
-
-
-bool testeoln(fp) /* Test for end of line */
-FILE *fp;
-{
- int ch;
-
- ch = getc(fp);
- ungetc(ch, fp);
- return (ch == '\n');
-} /* end testeoln */
-
-
-void readln(fp) /* Skip to end of line */
-FILE *fp;
-{
- int ch,st;
- G_MESSAGE msg;
- if (fp == stdin)
- {
- read_line();
- }
- else
- while (ch != '\n' && ch != EOF)
- ch=getc(fp);
-
-} /* end readln */
-
-
-static char str[10];
-word readint(fp) /* Read integer */
-FILE *fp;
-{
- long i=0L;
- int j=0,c=0;
- int bool=0;
-
-
- while(c<'0' || c>'9'){
- if(c=='-') bool=1;
- else bool=0;
-
- c=fgetc(fp);
-
- if(c==EOF){
- errsignal(RTEBADFM);
- goto END;
- }
- }
-
- do{
- i=10*i+(c-'0');
- j++;
- c=fgetc(fp);
- }while(c>='0' && c<='9');
- if(c!=EOF) ungetc(c,fp);
- if (j == 0 ) errsignal(RTEBADFM);
- END:
- if(bool)
- return(-i);
- else
- return (i);
-} /* end readint */
-
-
-double readreal(fp) /* Read real */
-FILE *fp;
-{
- double r;
-
- if (fscanf(fp, "%lf", &r) != 1) errsignal(RTEBADFM);
- return (r);
-} /* end readreal */
-
-
-void writeint(n, field, fp) /* Write integer */
-word n, field;
-FILE *fp;
-{
- static char format[ 32 ];
-
- sprintf(format,"%*ld",(int)field, (long)n);
- if (fp == stdout) write_str(format); else
- if (fprintf(fp, "%*ld", (int)field, (long) n) == 0) errsignal(RTEIOERR);
-} /* end writeint */
-
-
-void writereal(r, field1, field2, fp) /* Write real */
-double r;
-word field1, field2;
-FILE *fp;
-{
- char format[ 32 ];
-
- sprintf(format, "%*.*lf", (int) field1, (int) field2,r);
- if (fp == stdout) write_str(format); else
- if (fprintf(fp,"%*.*lf", (int)field1, (int)field2, r) == 0)
- errsignal(RTEIOERR);
-} /* end writereal */
-
-
-void writestring(offset, field, fp) /* Write string */
-word offset;
-word field;
-FILE *fp;
-{
- word len, addr;
- int i;
- char *cp;
- char s[256];
-
- addr = strings+offset;
- len = M[ addr ];
- cp = (char *) &M[ addr+1 ]; /* pointer to first char of string */
- if (fp == stdout)
- {
- for(i=0;i<len;i++) s[i] = *cp++;
- s[len] = '\0';
- write_str(s);
- } else
- while (len-- > 0 && field-- != 0)
- if (putc(*cp++, fp) == EOF) errsignal(RTEIOERR);
-} /* end writestring */
-
-
-word directio(buf, len, action, fp) /* Perform direct access read/write */
-virtaddr *buf; /* buffer array */
-word len; /* number of bytes to transfer */
-#ifndef NO_PROTOTYPES
-int (*action)(char *,int,int,FILE *); /* fread() or fwrite() */
-#else
-int (*action)(); /* fread() or fwrite() */
-#endif
-FILE *fp; /* stream pointer */
-{
- word am, t1, result;
- int n;
-
- if (member(buf, &am)) /* file not none */
- {
- if (fseek(fp, 0L, 1)) errsignal(RTEIOERR); /* seek to current */
- /* position required */
- len = min(len, (M[ am ]-3)*sizeof(word)); /* check appetite */
- result = 0; /* number of bytes transfered */
- t1 = am+3; /* address in memory for transfer */
- while (len >= IOBLOCK) /* transfer full blocks */
- {
- n = (*action)((char *) &M[ t1 ], 1, IOBLOCK, fp);
- result += n;
- if (n != IOBLOCK) return(result);
- len -= IOBLOCK;
- t1 += IOBLOCK/sizeof(word);
- }
- if (len > 0) /* transfer last unfilled block */
- {
- n = (*action)((char *) &M[ t1 ], 1, (int) len, fp);
- result += n;
- }
- return(result);
- }
- else errsignal(RTEREFTN);
-} /* end directio */
-
projects / vlp.git / blobdiff