本文整理汇总了C++中PassOwnPtr::isDiscardable方法的典型用法代码示例。如果您正苦于以下问题：C++ PassOwnPtr::isDiscardable方法的具体用法？C++ PassOwnPtr::isDiscardable怎么用？C++ PassOwnPtr::isDiscardable使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PassOwnPtr的用法示例。
在下文中一共展示了PassOwnPtr::isDiscardable方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: insertCacheInternal
void ImageDecodingStore::insertCacheInternal(PassOwnPtr<CacheEntry> cacheEntry)
{
if (!cacheEntry->isDiscardable())
incrementMemoryUsage(cacheEntry->memoryUsageInBytes());
TRACE_COUNTER1("webkit", "ImageDecodingStoreMemoryUsageBytes", m_memoryUsageInBytes);
// m_orderedCacheList is used to support LRU operations to reorder cache
// entries quickly.
m_orderedCacheList.append(cacheEntry.get());
CacheIdentifier key = cacheEntry->cacheKey();
// m_cacheMap is used for indexing and quick lookup of a cached image. It owns
// all cache entries.
m_cacheMap.add(key, cacheEntry);
TRACE_COUNTER1("webkit", "ImageDecodingStoreNumOfEntries", m_cacheMap.size());
// m_cachedSizeMap keeps all scaled sizes associated with an ImageFrameGenerator.
CachedSizeMap::AddResult result = m_cachedSizeMap.add(key.first, SizeSet());
result.iterator->value.add(key.second);
}示例2: insertCacheInternal
void ImageDecodingStore::insertCacheInternal(PassOwnPtr<T> cacheEntry, U* cacheMap, V* identifierMap)
{
const size_t cacheEntryBytes = cacheEntry->memoryUsageInBytes();
if (cacheEntry->isDiscardable())
m_discardableMemoryUsageInBytes += cacheEntryBytes;
else
m_heapMemoryUsageInBytes += cacheEntryBytes;
// m_orderedCacheList is used to support LRU operations to reorder cache
// entries quickly.
m_orderedCacheList.append(cacheEntry.get());
typename U::KeyType key = cacheEntry->cacheKey();
typename V::AddResult result = identifierMap->add(cacheEntry->generator(), typename V::MappedType());
result.storedValue->value.add(key);
cacheMap->add(key, cacheEntry);
TRACE_COUNTER1("webkit", "ImageDecodingStoreDiscardableMemoryUsageBytes", m_discardableMemoryUsageInBytes);
TRACE_COUNTER1("webkit", "ImageDecodingStoreHeapMemoryUsageBytes", m_heapMemoryUsageInBytes);
TRACE_COUNTER1("webkit", "ImageDecodingStoreNumOfImages", m_imageCacheMap.size());
TRACE_COUNTER1("webkit", "ImageDecodingStoreNumOfDecoders", m_decoderCacheMap.size());
}