Applied a patch from Vladimir Nikishkin for recent versions of gcc.
This commit is contained in:
Erick Gallesio
parent
12b2fafa17
commit
6bf9ee87b2
336
Src/io.c
336
Src/io.c
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@ -1,7 +1,7 @@
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/*
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* i o . c -- Low level I/O
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* i o . c -- Low level I/O
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*
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* Copyright © 1993-1999 Erick Gallesio - I3S-CNRS/ESSI <eg@unice.fr>
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* Copyright © 1993-2019 Erick Gallesio - I3S-CNRS/ESSI <eg@unice.fr>
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*
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*
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* Permission to use, copy, modify, distribute,and license this
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@ -13,9 +13,9 @@
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* This software is provided ``AS IS'' without express or implied
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* warranty.
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*
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* Author: Erick Gallesio [eg@kaolin.unice.fr]
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* Author: Erick Gallesio [eg@kaolin.unice.fr]
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* Creation date: ????
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* Last file update: 3-Sep-1999 20:20 (eg)
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* Last file update: 31-Oct-2019 15:55 (eg)
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*/
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#ifdef WIN32
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@ -29,19 +29,19 @@
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# include <ctype.h>
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# define TCL_EVENT_FLAG 0
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# ifdef HAVE_SYS_SELECT_H
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# include <sys/select.h> /* This seems to be useful only for AIX */
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# include <sys/select.h> /* This seems to be useful only for AIX */
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# endif
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# ifndef NO_FD_SET
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# define SELECT_MASK fd_set
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# else
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# ifndef _AIX
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typedef long fd_mask;
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typedef long fd_mask;
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# endif
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# if defined(_IBMR2)
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# define SELECT_MASK void
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# define SELECT_MASK void
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# else
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# define SELECT_MASK int
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# define SELECT_MASK int
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# endif
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# endif
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#endif
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@ -51,8 +51,8 @@
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#include "sport.h"
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#include "vport.h"
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#define BUFFER_SIZE 512
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#define SYSTEM(instr) { instr; }
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#define BUFFER_SIZE 512
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#define SYSTEM(instr) { instr; }
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#ifdef max
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@ -67,6 +67,10 @@
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# define READ_DATA_PENDING(fp) (max(0,(fp)->_egptr - (fp)->_gptr))
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# endif
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#endif
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#if (!defined (READ_DATA_PENDING)) && defined __GLIBC__
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# define READ_DATA_PENDING(fp) (max(0,(fp)->_IO_read_end - (fp)->_IO_read_ptr))
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#endif
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#if (!defined (READ_DATA_PENDING)) && defined __SLBF
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# define READ_DATA_PENDING(fp) (max(0,fp->_r))
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#endif
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@ -101,7 +105,7 @@ void STk_StdinProc()
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void STk_fill_stdin_buffer(char *s)
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{
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/* This procedure is called by the console to simulate the arrival of
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* characters on stdin. The string is GC protected */
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* characters on stdin. The string is GC protected */
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count = strlen(s);
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buffer = s;
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filled = 1;
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@ -110,9 +114,9 @@ void STk_fill_stdin_buffer(char *s)
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static int file_data_available(SCM port)
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{
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return ( (PORT_UNGETC(port) != EOF) ||
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((port == STk_stdin) && (bufidx < count)) ||
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(READ_DATA_PENDING(PORT_FILE(port))) );
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return ( (PORT_UNGETC(port) != EOF) ||
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((port == STk_stdin) && (bufidx < count)) ||
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(READ_DATA_PENDING(PORT_FILE(port))) );
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}
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@ -135,21 +139,21 @@ int STk_getc(SCM port)
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else {
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#ifdef USE_TK
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if (Tk_initialized && STk_interactivep) {
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filled = 0;
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while (!filled && !STk_control_C) {
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Tcl_DoOneEvent(TCL_EVENT_FLAG);
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if (Tk_GetNumMainWindows() <= 0) return EOF;
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}
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filled = 0;
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while (!filled && !STk_control_C) {
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Tcl_DoOneEvent(TCL_EVENT_FLAG);
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if (Tk_GetNumMainWindows() <= 0) return EOF;
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}
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}
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else
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STk_StdinProc();
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STk_StdinProc();
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#else
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STk_StdinProc();
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#endif
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if (count <= 0) return EOF;
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else {
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bufidx = 1;
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return *buffer;
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bufidx = 1;
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return *buffer;
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}
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}
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}
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@ -157,42 +161,42 @@ int STk_getc(SCM port)
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/* Otherwise */
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switch (TYPE(port)) {
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case tc_iport : for ( ; ; ) {
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errno = 0; /* OSF does not set errno to 0 before a read ! */
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SYSTEM(result=getc(PORT_FILE(port)));
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if (result != EOF || errno != EINTR) break;
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}
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return result;
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errno = 0; /* OSF does not set errno to 0 before a read ! */
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SYSTEM(result=getc(PORT_FILE(port)));
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if (result != EOF || errno != EINTR) break;
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}
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return result;
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case tc_isport: {
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register struct str_iob *f;
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register struct str_iob *f;
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f = (struct str_iob *) PORT_FILE(port);
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return (--(f->cnt)>=0? ((int)*f->ptr++): EOF);
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}
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f = (struct str_iob *) PORT_FILE(port);
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return (--(f->cnt)>=0? ((int)*f->ptr++): EOF);
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}
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case tc_ivport: {
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register struct virtual_iob *f;
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SCM proc_eof, proc_getc, res;
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register struct virtual_iob *f;
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SCM proc_eof, proc_getc, res;
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f = (struct virtual_iob *) PORT_FILE(port);
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f = (struct virtual_iob *) PORT_FILE(port);
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proc_eof = f->eofp;
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proc_getc = f->getc;
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proc_eof = f->eofp;
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proc_getc = f->getc;
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if (proc_eof == Ntruth || proc_getc == Ntruth) {
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/* No eof or getc_procedure => always EOF */
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return EOF;
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}
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if (proc_eof == Ntruth || proc_getc == Ntruth) {
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/* No eof or getc_procedure => always EOF */
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return EOF;
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}
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if (Apply1(proc_eof, port) == Ntruth) {
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/* Not eof */
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res = Apply1(proc_getc, port);
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return (res == STk_eof_object) ? EOF: CHAR(res);
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} else {
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/* eof procedure says we have an eof */
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return EOF;
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}
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}
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if (Apply1(proc_eof, port) == Ntruth) {
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/* Not eof */
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res = Apply1(proc_getc, port);
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return (res == STk_eof_object) ? EOF: CHAR(res);
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} else {
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/* eof procedure says we have an eof */
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return EOF;
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}
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}
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default: Err("INTERNAL ERROR in STk_getc", NIL);
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return 0;
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return 0;
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}
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}
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@ -210,37 +214,37 @@ int STk_putc(int c, SCM port)
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ENTER_PRIMITIVE("write-char");
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switch (TYPE(port)) {
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case tc_oport : SYSTEM(c=fputc(c, PORT_FILE(port)));
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/* Signal an error if write fails. We can't do better here */
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if (c == EOF) Serror("write error", NIL);
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break;
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/* Signal an error if write fails. We can't do better here */
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if (c == EOF) Serror("write error", NIL);
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break;
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case tc_osport: {
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register struct str_iob *f;
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register unsigned int tmp;
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register struct str_iob *f;
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register unsigned int tmp;
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f = (struct str_iob *) PORT_FILE(port);
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if (++f->cnt == f->bufsiz) {
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tmp = f->bufsiz;
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tmp += tmp/2;
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f->base = must_realloc(f->base, tmp);
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f->ptr = f->base + f->bufsiz - 1; /* base can move */
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f->bufsiz = tmp;
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}
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*f->ptr++ = (unsigned char) c;
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break;
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}
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f = (struct str_iob *) PORT_FILE(port);
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if (++f->cnt == f->bufsiz) {
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tmp = f->bufsiz;
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tmp += tmp/2;
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f->base = must_realloc(f->base, tmp);
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f->ptr = f->base + f->bufsiz - 1; /* base can move */
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f->bufsiz = tmp;
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}
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*f->ptr++ = (unsigned char) c;
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break;
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}
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case tc_ovport: {
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register struct virtual_iob *f;
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SCM res, proc;
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register struct virtual_iob *f;
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SCM res, proc;
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f = (struct virtual_iob *) PORT_FILE(port);
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proc = f->putc;
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if (proc == Ntruth) /* No putc function: return EOF */
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return EOF;
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else {
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res = Apply2(proc, STk_makechar(c), port);
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if (res == STk_eof_object) Serror("write error", NIL);
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}
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}
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f = (struct virtual_iob *) PORT_FILE(port);
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proc = f->putc;
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if (proc == Ntruth) /* No putc function: return EOF */
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return EOF;
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else {
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res = Apply2(proc, STk_makechar(c), port);
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if (res == STk_eof_object) Serror("write error", NIL);
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}
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}
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}
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return c;
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}
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@ -251,45 +255,45 @@ int STk_puts(char *s, SCM port)
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switch (TYPE(port)) {
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case tc_oport : {
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int result;
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int result;
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SYSTEM(result = fputs(s, PORT_FILE(port)));
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if (result == EOF) Serror("write-error", NIL);
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return result;
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}
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SYSTEM(result = fputs(s, PORT_FILE(port)));
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if (result == EOF) Serror("write-error", NIL);
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return result;
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}
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case tc_osport: {
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register struct str_iob *f;
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register unsigned int tmp;
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register struct str_iob *f;
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register unsigned int tmp;
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f = (struct str_iob *) PORT_FILE(port);
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for ( ; *s; s++) {
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if (++f->cnt == f->bufsiz) {
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tmp = f->bufsiz;
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tmp += tmp/2;
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f->base = must_realloc(f->base, tmp);
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f->ptr = f->base + f->bufsiz - 1; /* base can move */
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f->bufsiz = tmp;
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}
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*f->ptr++ = (unsigned char) *s;
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}
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return 0;
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}
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f = (struct str_iob *) PORT_FILE(port);
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for ( ; *s; s++) {
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if (++f->cnt == f->bufsiz) {
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tmp = f->bufsiz;
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tmp += tmp/2;
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f->base = must_realloc(f->base, tmp);
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f->ptr = f->base + f->bufsiz - 1; /* base can move */
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f->bufsiz = tmp;
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}
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*f->ptr++ = (unsigned char) *s;
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}
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return 0;
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}
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case tc_ovport: {
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register struct virtual_iob *f;
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SCM res, proc;
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register struct virtual_iob *f;
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SCM res, proc;
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f = (struct virtual_iob *) PORT_FILE(port);
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proc = f->puts;
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if (proc == Ntruth) /* No putc function: return EOF */
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return EOF;
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else {
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res = Apply2(proc, STk_makestring(s), port);
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if (res ==STk_eof_object) Serror("write error", NIL);
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}
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}
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/* NO BREAK */
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default: return 0;
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f = (struct virtual_iob *) PORT_FILE(port);
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proc = f->puts;
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if (proc == Ntruth) /* No putc function: return EOF */
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return EOF;
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else {
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res = Apply2(proc, STk_makestring(s), port);
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if (res ==STk_eof_object) Serror("write error", NIL);
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}
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}
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/* NO BREAK */
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default: return 0;
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}
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}
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@ -297,24 +301,24 @@ int STk_eof(SCM port)
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{
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switch (TYPE(port)) {
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case tc_iport : {
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int result;
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SYSTEM(result = feof(PORT_FILE(port)));
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return result;
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}
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int result;
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SYSTEM(result = feof(PORT_FILE(port)));
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return result;
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}
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case tc_isport: {
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register struct str_iob *f;
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f = (struct str_iob *) PORT_FILE(port);
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return f->cnt <= 0;
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}
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register struct str_iob *f;
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f = (struct str_iob *) PORT_FILE(port);
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return f->cnt <= 0;
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}
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case tc_ivport: {
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register struct virtual_iob *f;
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SCM proc;
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register struct virtual_iob *f;
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SCM proc;
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f = (struct virtual_iob *) PORT_FILE(port);
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proc = f->eofp;
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return (proc == Ntruth) ? 1 : (Apply1(proc, port) != Ntruth);
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}
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f = (struct virtual_iob *) PORT_FILE(port);
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proc = f->eofp;
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return (proc == Ntruth) ? 1 : (Apply1(proc, port) != Ntruth);
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}
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default: return 1; /* always EOF on output files */
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}
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}
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@ -323,18 +327,18 @@ int STk_internal_flush(SCM port)
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{
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switch (TYPE(port)) {
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case tc_oport : {
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int result;
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SYSTEM(result = fflush(PORT_FILE(port)));
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return result;
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}
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int result;
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SYSTEM(result = fflush(PORT_FILE(port)));
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return result;
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}
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case tc_ovport: {
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register struct virtual_iob *f;
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SCM proc;
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register struct virtual_iob *f;
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SCM proc;
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f = (struct virtual_iob *) PORT_FILE(port);
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proc = f->flush;
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return (proc == Ntruth) ? 0 : (Apply1(proc, port) != Ntruth);
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}
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f = (struct virtual_iob *) PORT_FILE(port);
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proc = f->flush;
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return (proc == Ntruth) ? 0 : (Apply1(proc, port) != Ntruth);
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}
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default: return 0; /* i.e. always works on other ports */
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}
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}
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@ -343,44 +347,44 @@ int STk_internal_char_readyp(SCM port)
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{
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switch (TYPE(port)) {
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case tc_iport : {
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if (file_data_available(port)) return 1;
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if (file_data_available(port)) return 1;
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#ifdef WIN32
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panic("char-ready?: Not yet implemented!");
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panic("char-ready?: Not yet implemented!");
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#else
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# ifdef HAVE_SELECT
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{
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SELECT_MASK readfds;
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struct timeval timeout;
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int f = fileno(PORT_FILE(port));
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{
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SELECT_MASK readfds;
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struct timeval timeout;
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int f = fileno(PORT_FILE(port));
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FD_ZERO(&readfds);
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FD_SET(f, &readfds);
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timeout.tv_sec = timeout.tv_usec = 0;
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return (select(f+1, &readfds, NULL, NULL, &timeout));
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}
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FD_ZERO(&readfds);
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FD_SET(f, &readfds);
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timeout.tv_sec = timeout.tv_usec = 0;
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return (select(f+1, &readfds, NULL, NULL, &timeout));
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}
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# else
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# ifdef FIONREAD
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{
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int result;
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{
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int result;
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|
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ioctl(fileno(PORT_FILE(port)), FIONREAD, &result);
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return result;
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}
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ioctl(fileno(PORT_FILE(port)), FIONREAD, &result);
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return result;
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}
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# else
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return 1;
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return 1;
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# endif
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# endif
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#endif
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}
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}
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case tc_isport: return 1;
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case tc_ivport: {
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register struct virtual_iob *f;
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SCM proc;
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register struct virtual_iob *f;
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SCM proc;
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f = (struct virtual_iob *) PORT_FILE(port);
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proc = f->readyp;
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return (proc == Ntruth) ? 1 : (Apply1(proc, port) != Ntruth);
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}
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f = (struct virtual_iob *) PORT_FILE(port);
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proc = f->readyp;
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return (proc == Ntruth) ? 1 : (Apply1(proc, port) != Ntruth);
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}
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default: return 1; /* always EOF on output files */
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}
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}
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|
|
@ -398,13 +402,13 @@ void STk_close(SCM port)
|
|||
|
||||
case tc_ivport:
|
||||
case tc_ovport: {
|
||||
register struct virtual_iob *f;
|
||||
SCM proc;
|
||||
register struct virtual_iob *f;
|
||||
SCM proc;
|
||||
|
||||
f = (struct virtual_iob *) PORT_FILE(port);
|
||||
proc = f->close;
|
||||
if (proc != Ntruth) Apply1(proc, port);
|
||||
}
|
||||
f = (struct virtual_iob *) PORT_FILE(port);
|
||||
proc = f->close;
|
||||
if (proc != Ntruth) Apply1(proc, port);
|
||||
}
|
||||
}
|
||||
PORT_FLAGS(port) |= PORT_CLOSED;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue