CachedPage* PageCache::get(HistoryItem& item, Page* page)
{
CachedPage* cachedPage = item.m_cachedPage.get();
if (!cachedPage) {
if (item.m_pruningReason != PruningReason::None)
logPageCacheFailureDiagnosticMessage(page, pruningReasonToDiagnosticLoggingKey(item.m_pruningReason));
return nullptr;
}
if (cachedPage->hasExpired() || (page && page->isResourceCachingDisabled())) {
LOG(PageCache, "Not restoring page for %s from back/forward cache because cache entry has expired", item.url().string().ascii().data());
logPageCacheFailureDiagnosticMessage(page, DiagnosticLoggingKeys::expiredKey());
remove(item);
return nullptr;
}
return cachedPage;
}
std::unique_ptr<CachedPage> PageCache::take(HistoryItem& item, Page* page)
{
if (!item.m_cachedPage) {
if (item.m_pruningReason != PruningReason::None)
logPageCacheFailureDiagnosticMessage(page, pruningReasonToDiagnosticLoggingKey(item.m_pruningReason));
return nullptr;
}
std::unique_ptr<CachedPage> cachedPage = WTF::move(item.m_cachedPage);
m_items.remove(&item);
if (cachedPage->hasExpired()) {
LOG(PageCache, "Not restoring page for %s from back/forward cache because cache entry has expired", item.url().string().ascii().data());
logPageCacheFailureDiagnosticMessage(page, DiagnosticLoggingKeys::expiredKey());
return nullptr;
}
return cachedPage;
}