Rev 359 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 359 | serge | 1 | /**************************************************************************** |
| 2 | * |
||
| 3 | * Open Watcom Project |
||
| 4 | * |
||
| 5 | * Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved. |
||
| 6 | * |
||
| 7 | * ======================================================================== |
||
| 8 | * |
||
| 9 | * This file contains Original Code and/or Modifications of Original |
||
| 10 | * Code as defined in and that are subject to the Sybase Open Watcom |
||
| 11 | * Public License version 1.0 (the 'License'). You may not use this file |
||
| 12 | * except in compliance with the License. BY USING THIS FILE YOU AGREE TO |
||
| 13 | * ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is |
||
| 14 | * provided with the Original Code and Modifications, and is also |
||
| 15 | * available at www.sybase.com/developer/opensource. |
||
| 16 | * |
||
| 17 | * The Original Code and all software distributed under the License are |
||
| 18 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
||
| 19 | * EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM |
||
| 20 | * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF |
||
| 21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR |
||
| 22 | * NON-INFRINGEMENT. Please see the License for the specific language |
||
| 23 | * governing rights and limitations under the License. |
||
| 24 | * |
||
| 25 | * ======================================================================== |
||
| 26 | * |
||
| 27 | * Description: Platform independent fclose() implementation. |
||
| 28 | * |
||
| 29 | ****************************************************************************/ |
||
| 30 | |||
| 31 | |||
| 32 | #include "variety.h" |
||
| 33 | #include |
||
| 34 | #include |
||
| 35 | #include |
||
| 36 | #include "liballoc.h" |
||
| 37 | #include "mf.h" |
||
| 38 | #include |
||
| 39 | #include "fileacc.h" |
||
| 40 | #include "tmpfname.h" |
||
| 41 | #include "rtdata.h" |
||
| 42 | #include "lseek.h" |
||
| 43 | #include "streamio.h" |
||
| 44 | #include "close.h" |
||
| 45 | #include "flush.h" |
||
| 46 | |||
| 47 | |||
| 48 | #ifndef __UNIX__ |
||
| 49 | void (*__RmTmpFileFn)( FILE *fp ); |
||
| 50 | #endif |
||
| 51 | |||
| 52 | |||
| 53 | int __doclose( FILE *fp, int close_handle ) |
||
| 54 | { |
||
| 55 | int ret; |
||
| 56 | |||
| 57 | if( fp->_flag == 0 ) { |
||
| 58 | return( -1 ); /* file already closed */ |
||
| 59 | } |
||
| 60 | ret = 0; |
||
| 61 | if( fp->_flag & _DIRTY ) { |
||
| 62 | ret = __flush( fp ); |
||
| 63 | } |
||
| 64 | _AccessFile( fp ); |
||
| 65 | /* |
||
| 66 | * 02-nov-92 G.Turcotte Syncronize buffer pointer with the file pointer |
||
| 67 | * IEEE Std 1003.1-1988 B.8.2.3.2 |
||
| 68 | * 03-nov-03 B.Oldeman Inlined ftell; we already know the buffer isn't |
||
| 69 | * dirty (because of the flush), so only a "get" applies |
||
| 70 | */ |
||
| 71 | if( fp->_cnt != 0 ) { /* if something in buffer */ |
||
| 72 | __lseek( fileno( fp ), -fp->_cnt, SEEK_CUR ); |
||
| 73 | } |
||
| 74 | |||
| 75 | if( close_handle ) { |
||
| 76 | #if defined( __UNIX__ ) || defined( __NETWARE__ ) |
||
| 77 | // we don't get to implement the close function on these systems |
||
| 78 | ret |= close( fileno( fp ) ); |
||
| 79 | #else |
||
| 80 | ret |= __close( fileno( fp ) ); |
||
| 81 | #endif |
||
| 82 | } |
||
| 83 | if( fp->_flag & _BIGBUF ) { /* if we allocated the buffer */ |
||
| 84 | lib_free( _FP_BASE(fp) ); |
||
| 85 | _FP_BASE(fp) = NULL; |
||
| 86 | } |
||
| 87 | #ifndef __UNIX__ |
||
| 88 | /* this never happens under UNIX */ |
||
| 89 | if( fp->_flag & _TMPFIL ) { /* if this is a temporary file */ |
||
| 90 | __RmTmpFileFn( fp ); |
||
| 91 | } |
||
| 92 | #endif |
||
| 93 | _ReleaseFile( fp ); |
||
| 94 | return( ret ); |
||
| 95 | } |
||
| 96 | |||
| 97 | int __shutdown_stream( FILE *fp, int close_handle ) |
||
| 98 | { |
||
| 99 | int ret; |
||
| 100 | |||
| 101 | ret = __doclose( fp, close_handle ); |
||
| 102 | __freefp( fp ); |
||
| 103 | return( ret ); |
||
| 104 | } |
||
| 105 | |||
| 106 | _WCRTLINK int fclose( FILE *fp ) |
||
| 107 | { |
||
| 108 | __stream_link *link; |
||
| 109 | |||
| 110 | _AccessIOB(); |
||
| 111 | link = _RWD_ostream; |
||
| 112 | for( ;; ) { |
||
| 113 | if( link == NULL ) { |
||
| 114 | _ReleaseIOB(); |
||
| 115 | return( -1 ); /* file not open */ |
||
| 116 | } |
||
| 117 | if( link->stream == fp ) break; |
||
| 118 | link = link->next; |
||
| 119 | } |
||
| 120 | _ReleaseIOB(); |
||
| 121 | return( __shutdown_stream( fp, 1 ) ); |
||
| 122 | } |