apps/showimage/ImageCache.cpp

97 		CacheEntry* entry = find->second;
99 		// Requeue cache entry to the end of the by-age list
100 		TRACE("requeue trace entry %s\n", ref.name);
101 		fCacheEntriesByAge.Remove(entry);
102 		fCacheEntriesByAge.Add(entry);
105 		_NotifyTarget(entry, target);
110 	QueueEntry* entry;
119 			TRACE("ignore entry %s\n", ref.name);
125 		// Push new entry to the queue
126 		entry = new(std::nothrow) QueueEntry();
127 		if (entry == NULL)
130 		entry->ref = ref;
131 		entry->page = page;
141 				delete entry;
147 			std::make_pair(entry->ref, entry->page), entry));
148 		fQueue.push_front(entry);
150 		entry = findQueue->second;
151 		TRACE("got entry %s from cache\n", entry->ref.name);
156 		entry->listeners.insert(*target);
169 	// get next queue entry
177 		QueueEntry* entry = *self->fQueue.begin();
178 		TRACE("%ld: got entry %s from queue.\n", find_thread(NULL),
179 			entry->ref.name);
184 		entry->status = self->_RetrieveImage(entry, &cacheEntry);
187 		self->fQueueMap.erase(std::make_pair(entry->ref, entry->page));
188 		self->_NotifyListeners(cacheEntry, entry);
191 		delete entry;
203 	CacheEntry* entry = new(std::nothrow) CacheEntry();
204 	if (entry == NULL)
207 	ObjectDeleter<CacheEntry> deleter(entry);
252 	entry->bitmapOwner = new(std::nothrow) BitmapOwner(bitmap);
253 	if (entry->bitmapOwner == NULL) {
258 	entry->ref = queueEntry->ref;
259 	entry->page = queueEntry->page;
260 	entry->bitmap = bitmap;
261 	entry->type = info.name;
262 	entry->mimeType = info.MIME;
268 		entry->pageCount = documentCount;
270 		entry->pageCount = 1;
273 	*_entry = entry;
278 		std::make_pair(entry->ref, entry->page), entry));
279 	fCacheEntriesByAge.Add(entry);
283 	TRACE("%ld: cached entry %s from queue (%" B_PRIu64 " bytes.\n",
284 		find_thread(NULL), entry->ref.name, fBytes);
290 		// Remove the oldest entry
291 		entry = fCacheEntriesByAge.RemoveHead();
292 		TRACE("%ld: purge cached entry %s from queue.\n", find_thread(NULL),
293 			entry->ref.name);
294 		fBytes -= entry->bitmap->BitsLength();
295 		fCacheMap.erase(std::make_pair(entry->ref, entry->page));
297 		entry->bitmapOwner->ReleaseReference();
298 		delete entry;
306 ImageCache::_NotifyListeners(CacheEntry* entry, QueueEntry* queueEntry)
314 	_BuildNotification(entry, notification);
321 		if (iterator->SendMessage(&notification) == B_OK && entry != NULL) {
322 			entry->bitmapOwner->AcquireReference();
330 ImageCache::_NotifyTarget(CacheEntry* entry, const BMessenger* target)
336 	_BuildNotification(entry, notification);
338 	if (target->SendMessage(&notification) == B_OK && entry != NULL) {
339 		entry->bitmapOwner->AcquireReference();
346 ImageCache::_BuildNotification(CacheEntry* entry, BMessage& message)
348 	if (entry == NULL)
351 	message.AddString("type", entry->type);
352 	message.AddString("mime", entry->mimeType);
353 	message.AddRef("ref", &entry->ref);
354 	message.AddInt32("page", entry->page);
355 	message.AddInt32("pageCount", entry->pageCount);
356 	message.AddPointer("bitmap", (void*)entry->bitmap);
357 	message.AddPointer("bitmapOwner", (void*)entry->bitmapOwner);