apps/showimage/ImageCache.cpp

94 		CacheEntry* entry = find->second;
96 		// Requeue cache entry to the end of the by-age list
97 		TRACE("requeue trace entry %s\n", ref.name);
98 		fCacheEntriesByAge.Remove(entry);
99 		fCacheEntriesByAge.Add(entry);
102 		_NotifyTarget(entry, target);
107 	QueueEntry* entry;
116 			TRACE("ignore entry %s\n", ref.name);
122 		// Push new entry to the queue
123 		entry = new(std::nothrow) QueueEntry();
124 		if (entry == NULL)
127 		entry->ref = ref;
128 		entry->page = page;
138 				delete entry;
144 			std::make_pair(entry->ref, entry->page), entry));
145 		fQueue.push_front(entry);
147 		entry = findQueue->second;
148 		TRACE("got entry %s from cache\n", entry->ref.name);
153 		entry->listeners.insert(*target);
166 		QueueEntry* entry = *fQueue.begin();
168 		delete entry;
189 	// get next queue entry
197 		QueueEntry* entry = *self->fQueue.begin();
198 		TRACE("%ld: got entry %s from queue.\n", find_thread(NULL),
199 			entry->ref.name);
204 		entry->status = self->_RetrieveImage(entry, &cacheEntry);
207 		self->fQueueMap.erase(std::make_pair(entry->ref, entry->page));
208 		self->_NotifyListeners(cacheEntry, entry);
211 		delete entry;
223 	CacheEntry* entry = new(std::nothrow) CacheEntry();
224 	if (entry == NULL)
227 	ObjectDeleter<CacheEntry> deleter(entry);
272 	entry->bitmapOwner = new(std::nothrow) BitmapOwner(bitmap);
273 	if (entry->bitmapOwner == NULL) {
278 	entry->ref = queueEntry->ref;
279 	entry->page = queueEntry->page;
280 	entry->bitmap = bitmap;
281 	entry->type = info.name;
282 	entry->mimeType = info.MIME;
288 		entry->pageCount = documentCount;
290 		entry->pageCount = 1;
293 	*_entry = entry;
298 		std::make_pair(entry->ref, entry->page), entry));
299 	fCacheEntriesByAge.Add(entry);
303 	TRACE("%ld: cached entry %s from queue (%" B_PRIu64 " bytes.\n",
304 		find_thread(NULL), entry->ref.name, fBytes);
310 		// Remove the oldest entry
311 		entry = fCacheEntriesByAge.RemoveHead();
312 		TRACE("%ld: purge cached entry %s from queue.\n", find_thread(NULL),
313 			entry->ref.name);
314 		fBytes -= entry->bitmap->BitsLength();
315 		fCacheMap.erase(std::make_pair(entry->ref, entry->page));
317 		entry->bitmapOwner->ReleaseReference();
318 		delete entry;
326 ImageCache::_NotifyListeners(CacheEntry* entry, QueueEntry* queueEntry)
334 	_BuildNotification(entry, notification);
341 		if (iterator->SendMessage(&notification) == B_OK && entry != NULL) {
342 			entry->bitmapOwner->AcquireReference();
350 ImageCache::_NotifyTarget(CacheEntry* entry, const BMessenger* target)
356 	_BuildNotification(entry, notification);
358 	if (target->SendMessage(&notification) == B_OK && entry != NULL) {
359 		entry->bitmapOwner->AcquireReference();
366 ImageCache::_BuildNotification(CacheEntry* entry, BMessage& message)
368 	if (entry == NULL)
371 	message.AddString("type", entry->type);
372 	message.AddString("mime", entry->mimeType);
373 	message.AddRef("ref", &entry->ref);
374 	message.AddInt32("page", entry->page);
375 	message.AddInt32("pageCount", entry->pageCount);
376 	message.AddPointer("bitmap", (void*)entry->bitmap);
377 	message.AddPointer("bitmapOwner", (void*)entry->bitmapOwner);