0,0 → 1,92 |
/**************************************************************************** |
* |
* 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 __allocfp() implementation. |
* |
****************************************************************************/ |
|
|
#include "variety.h" |
#include <stdio.h> |
#include "liballoc.h" |
#include "fileacc.h" |
#include "rtdata.h" |
#include "streamio.h" |
|
#ifdef DLHEAP |
|
void _cdecl dlfree(void*); |
void _cdecl mf_init(); |
|
#define malloc dlmalloc |
#define free dlfree |
#define realloc dlrealloc |
|
#define lib_free dlfree |
#endif |
|
/* |
NOTE: This routine does not actually free the link/FILE structures. |
That is because code assumes that it can fclose the file and then |
freopen is a short time later. The __purgefp routine can be called |
to actually release the storage. |
*/ |
|
void __freefp( FILE * fp ) |
{ |
__stream_link **owner; |
__stream_link *link; |
|
_AccessIOB(); |
owner = &_RWD_ostream; |
for( ;; ) { |
link = *owner; |
if( link == NULL ) |
return; |
if( link->stream == fp ) |
break; |
owner = &link->next; |
} |
fp->_flag |= _READ | _WRITE; |
(*owner) = link->next; |
link->next = _RWD_cstream; |
_RWD_cstream = link; |
_ReleaseIOB(); |
} |
|
|
void __purgefp( void ) |
{ |
__stream_link *next; |
|
_AccessIOB(); |
while( _RWD_cstream != NULL ) { |
next = _RWD_cstream->next; |
lib_free( _RWD_cstream ); |
_RWD_cstream = next; |
} |
_ReleaseIOB(); |
} |