Sprite 1984 - 1993/Sprite 1984 - 1993.iso/src/lib/c/stdio/RCS/StdioFileCloseProc.c,v

Text File | 1991-12-03 | 4.4 KB | 212 lines

head     1.5;
branch   ;
access   ;
symbols  sprited:1.5.1;
locks    ; strict;
comment  @ * @;


1.5
date     90.09.11.14.27.18;  author kupfer;  state Exp;
branches 1.5.1.1;
next     1.4;

1.4
date     89.11.04.21.50.19;  author douglis;  state Exp;
branches ;
next     1.3;

1.3
date     89.06.19.14.15.10;  author jhh;  state Exp;
branches ;
next     1.2;

1.2
date     88.07.20.18.11.40;  author ouster;  state Exp;
branches ;
next     1.1;

1.1
date     88.06.10.16.23.29;  author ouster;  state Exp;
branches ;
next     ;

1.5.1.1
date     91.12.02.19.53.06;  author kupfer;  state Exp;
branches ;
next     ;


desc
@@


1.5
log
@Use function prototypes. Lint.
@
text
@/*
 * StdioFileCloseProc.c --
 *
 *    Source code for the "StdioFileCloseProc" library procedure.
 *
 * Copyright 1988 Regents of the University of California
 * Permission to use, copy, modify, and distribute this
 * software and its documentation for any purpose and without
 * fee is hereby granted, provided that the above copyright
 * notice appear in all copies.  The University of California
 * makes no representations about the suitability of this
 * software for any purpose.  It is provided "as is" without
 * express or implied warranty.
 */

#ifndef lint
static char rcsid[] = "$Header: /sprite/src/lib/c/stdio/RCS/StdioFileCloseProc.c,v 1.4 89/11/04 21:50:19 douglis Exp Locker: kupfer $ SPRITE (Berkeley)";
#endif not lint

#include "stdio.h"
#include "fileInt.h"
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>

/*
 *----------------------------------------------------------------------
 *
 * StdioFileCloseProc --
 *
 *    This procedure is used as the closeProc for all streams
 *    that are associated with files.  It just closes the file
 *    associated with the stream.
 *
 * Results:
 *    Returns 0 if all went well, or EOF if there was an error during
 *    the close operation.
 *
 * Side effects:
 *    A file is closed.
 *
 *----------------------------------------------------------------------
 */

int
StdioFileCloseProc(stream)
    register FILE *stream;    /* Stream to be closed.  The clientData
                 * field of the stream contains the id to
                 * use when talking to the operating system
                 * about the stream. */
{
    register FILE *prev;

    /*
     * Careful!  Don't free the buffer unless we allocated it.
     */

    if ((stream->buffer != stdioTempBuffer)
        && (stream->buffer != stdioStderrBuffer)
        && (stream->buffer != NULL)
        && !(stream->flags & STDIO_NOT_OUR_BUF)) {
    free((char *) stream->buffer);
    stream->buffer = NULL;
    stream->bufSize = 0;
    }
    stream->flags = 0;
    stream->readCount = stream->writeCount = 0;
    if (close((int) stream->clientData) != 0) {
    stream->status = errno;
    return EOF;
    }

    /*
     * Free the stream's struct unless it's one of the ones statically
     * allocated for a standard channel.
     */

    if ((stream != stdin) && (stream != stdout) && (stream != stderr)) {
    if (stdioFileStreams == stream) {
        stdioFileStreams = stream->nextPtr;
    } else {
        for (prev = stdioFileStreams; prev != NULL;
            prev = prev->nextPtr) {
        if (prev->nextPtr == stream) {
            prev->nextPtr = stream->nextPtr;
            break;
        }
        }
    }
    free((char *) stream);
    }
    return 0;
}
@


1.5.1.1
log
@Initial branch for Sprite server.
@
text
@d17 1
a17 1
static char rcsid[] = "$Header: /sprite/src/lib/c/stdio/RCS/StdioFileCloseProc.c,v 1.5 90/09/11 14:27:18 kupfer Exp $ SPRITE (Berkeley)";
@


1.4
log
@fixes for freopen
@
text
@d17 1
a17 1
static char rcsid[] = "$Header: /sprite/src/lib/c/stdio/RCS/StdioFileCloseProc.c,v 1.3 89/06/19 14:15:10 jhh Exp Locker: douglis $ SPRITE (Berkeley)";
d22 1
d24 1
@


1.3
log
@Made stderr buffer static
@
text
@d17 1
a17 1
static char rcsid[] = "$Header: StdioFileCloseProc.c,v 1.2 88/07/20 18:11:40 ouster Exp $ SPRITE (Berkeley)";
d62 1
@


1.2
log
@Change file streams so that fdopen can be called more than once
for a given stream id, and get separate buffers.
@
text
@d17 1
a17 1
static char rcsid[] = "$Header: StdioFileCloseProc.c,v 1.1 88/06/10 16:23:29 ouster Exp $ SPRITE (Berkeley)";
d57 1
@


1.1
log
@Initial revision
@
text
@d17 1
a17 1
static char rcsid[] = "$Header: atoi.c,v 1.1 88/04/28 17:20:23 ouster Exp $ SPRITE (Berkeley)";
d50 2
d70 2
a71 2
     * Don't free the statically-allocated structures for the standard
     * streams, either.
d75 12
a86 2
        stdioFileStreams[(int) stream->clientData] = NULL;
        free((char *) stream);
@