/*!
  @header ECCacheItem
  @abstract Module of Encore
 
  @availability OS X, GNUstep
  @copyright 2004, 2005, 2006 Oliver Langer

  Author: Oliver Langer

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA

  <pre>
  -------------------------------------------------------------------------
  Modification history

  24.02.05 ola     initial version
  22.08.06 ola     license changed
  -------------------------------------------------------------------------
  </pre>
*/

#include <Encore/ECMemory.h>
#include <Encore/ECCacheItem.h>

@implementation ECCacheItem


- initWithObject: (id) objectToCache {
  self = [super init];
  self->cachedObject = [objectToCache retain];
  self->cacheReferenceCount = 1;
  return self;
}


- (void) dealloc {
  [self->cachedObject release];
  
  [super dealloc];
}


- (id) initWithCoder: (NSCoder *) decoder {
  NSNumber *storedRefCount;
  
  self = [super init];

  EC_AUTORELEASEPOOL_BEGIN
  
  self->cachedObject = [[decoder decodeObject] retain];
  storedRefCount = [decoder decodeObject];
  self->cacheReferenceCount = [storedRefCount unsignedIntValue];
  
  EC_AUTORELEASEPOOL_END

  return self;
}


- (void) encodeWithCoder: (NSCoder *) encoder {
  EC_AUTORELEASEPOOL_BEGIN
  [encoder encodeObject: self->cachedObject];
  [encoder encodeObject: [[[NSNumber alloc] 
    initWithUnsignedInt: self->cacheReferenceCount] autorelease]
  ];
  EC_AUTORELEASEPOOL_END
}

- cachedObject {
  return self->cachedObject;
}


- (void) incrementCacheReferenceCount {
  self->cacheReferenceCount++;
}


- (unsigned int) decrementCacheReferenceCount {
  self->cacheReferenceCount--;
  
  return self->cacheReferenceCount;
}


- (unsigned int) cacheReferenceCount {
  return self->cacheReferenceCount;
}
@end
