update CLib

git-svn-id: svn://kolibrios.org@614 a494cfbc-eb01-0410-851d-a64ba20cac60
2007-08-28 10:31:46 +00:00
parent 52facee6d5
commit 3be3768ce0
98 changed files with 9908 additions and 0 deletions
--- a/watcom/trunk/clib/streamio/fclose.c
+++ b/watcom/trunk/clib/streamio/fclose.c
@@ -0,0 +1,122 @@
+/****************************************************************************
+*
+*                            Open Watcom Project
+*
+*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
+*
+*  ========================================================================
+*
+*    This file contains Original Code and/or Modifications of Original
+*    Code as defined in and that are subject to the Sybase Open Watcom
+*    Public License version 1.0 (the 'License'). You may not use this file
+*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
+*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
+*    provided with the Original Code and Modifications, and is also
+*    available at www.sybase.com/developer/opensource.
+*
+*    The Original Code and all software distributed under the License are
+*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
+*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
+*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
+*    NON-INFRINGEMENT. Please see the License for the specific language
+*    governing rights and limitations under the License.
+*
+*  ========================================================================
+*
+* Description:  Platform independent fclose() implementation.
+*
+****************************************************************************/
+
+
+#include "variety.h"
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include "liballoc.h"
+#include "mf.h"
+#include <string.h>
+#include "fileacc.h"
+#include "tmpfname.h"
+#include "rtdata.h"
+#include "lseek.h"
+#include "streamio.h"
+#include "close.h"
+#include "flush.h"
+
+
+#ifndef __UNIX__
+void    (*__RmTmpFileFn)( FILE *fp );
+#endif
+
+
+int __doclose( FILE *fp, int close_handle )
+{
+    int         ret;
+
+    if( fp->_flag == 0 ) {
+        return( -1 );                       /* file already closed */
+    }
+    ret = 0;
+    if( fp->_flag & _DIRTY ) {
+        ret = __flush( fp );
+    }
+    _AccessFile( fp );
+/*
+ *      02-nov-92 G.Turcotte  Syncronize buffer pointer with the file pointer
+ *                        IEEE Std 1003.1-1988 B.8.2.3.2
+ *      03-nov-03 B.Oldeman Inlined ftell; we already know the buffer isn't
+ *                dirty (because of the flush), so only a "get" applies
+ */
+    if( fp->_cnt != 0 ) {                   /* if something in buffer */
+        __lseek( fileno( fp ), -fp->_cnt, SEEK_CUR );
+    }
+
+    if( close_handle ) {
+#if defined( __UNIX__ ) || defined( __NETWARE__ )
+        // we don't get to implement the close function on these systems
+        ret |= close( fileno( fp ) );
+#else
+        ret |= __close( fileno( fp ) );
+#endif
+    }
+    if( fp->_flag & _BIGBUF ) {     /* if we allocated the buffer */
+        lib_free( _FP_BASE(fp) );
+        _FP_BASE(fp) = NULL;
+    }
+#ifndef __UNIX__
+    /* this never happens under UNIX */
+    if( fp->_flag & _TMPFIL ) {     /* if this is a temporary file */
+        __RmTmpFileFn( fp );
+    }
+#endif
+    _ReleaseFile( fp );
+    return( ret );
+}
+
+int __shutdown_stream( FILE *fp, int close_handle )
+{
+    int         ret;
+
+    ret = __doclose( fp, close_handle );
+    __freefp( fp );
+    return( ret );
+}
+
+_WCRTLINK int fclose( FILE *fp )
+{
+    __stream_link       *link;
+
+    _AccessIOB();
+    link = _RWD_ostream;
+    for( ;; ) {
+        if( link == NULL ) {
+            _ReleaseIOB();
+            return( -1 );     /* file not open */
+        }
+        if( link->stream == fp ) break;
+        link = link->next;
+    }
+    _ReleaseIOB();
+    return( __shutdown_stream( fp, 1 ) );
+}