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109 lines
2.5 KiB
Mathematica
109 lines
2.5 KiB
Mathematica
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/* Implementation of auto release pool for delayed disposal
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Copyright (C) 1995 Free Software Foundation, Inc.
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Written by: R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
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Date: January 1995
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This file is part of the GNU Objective C Class Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <objects/stdobjects.h>
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#include <foundation/NSAutoreleasePool.h>
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#include <objects/collhash.h>
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#include <objects/eltfuncs.h>
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#include <objects/objc-malloc.h>
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/* Doesn't handle multi-threaded stuff.
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Doesn't handle exceptions. */
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/* Put the stuff from initialize into a runtime init function.
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This class should be made more efficient, especially:
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[[NSAutorelease alloc] init]
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[current_pool addObject:o] (REALLOC-case)
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*/
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static NSAutoreleasePool *current_pool = nil;
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#define DEFAULT_SIZE 64
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@implementation NSAutoreleasePool
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+ currentPool
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{
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return current_pool;
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}
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+ (void) addObject: anObj
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{
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[current_pool addObject:anObj];
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}
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- (void) addObject: anObj
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{
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released_count++;
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if (released_count == released_size)
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{
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released_size *= 2;
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OBJC_REALLOC(released, id, released_size);
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}
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released[released_count] = anObj;
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}
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- init
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{
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parent = current_pool;
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current_pool = self;
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OBJC_MALLOC(released, id, DEFAULT_SIZE);
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released_size = DEFAULT_SIZE;
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released_count = 0;
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return self;
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}
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- (id) retain
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{
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[self error:"Don't call `-retain' on a NSAutoreleasePool"];
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return self;
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}
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- (oneway void) release
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{
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[self dealloc];
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}
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- (void) dealloc
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{
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int i;
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if (parent)
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current_pool = parent;
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else
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current_pool = [[NSAutoreleasePool alloc] init];
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for (i = 0; i < released_count; i++)
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[released[i] release];
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OBJC_FREE(released);
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NSDeallocateObject(self);
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}
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- autorelease
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{
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[self error:"Don't call `-autorelease' on a NSAutoreleasePool"];
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return self;
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}
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@end
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