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Bug 1182977 - Use PLDHashTable::Iterator in dom/storage/. r=khuey.

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This commit is contained in:
Nicholas Nethercote 2015-07-21 23:54:12 -07:00
parent 0c59dad482
commit 4cebc0675d
2 changed files with 17 additions and 50 deletions
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64
dom/storage/DOMStorageManager.cpp
View File

@ -472,34 +472,18 @@ DOMStorageManager::GetLocalStorageForPrincipal(nsIPrincipal* aPrincipal,
return CreateStorage(nullptr, aPrincipal, aDocumentURI, aPrivate, aRetval);
}
namespace {
class ClearCacheEnumeratorData
void
DOMStorageManager::ClearCaches(uint32_t aUnloadFlags,
const nsACString& aKeyPrefix)
{
public:
explicit ClearCacheEnumeratorData(uint32_t aFlags)
: mUnloadFlags(aFlags)
{}
for (auto iter = mCaches.Iter(); !iter.Done(); iter.Next()) {
DOMStorageCache* cache = iter.Get()->cache();
nsCString& key = const_cast<nsCString&>(cache->Scope());
uint32_t mUnloadFlags;
nsCString mKeyPrefix;
};
} // namespace
PLDHashOperator
DOMStorageManager::ClearCacheEnumerator(DOMStorageCacheHashKey* aEntry, void* aClosure)
{
DOMStorageCache* cache = aEntry->cache();
nsCString& key = const_cast<nsCString&>(cache->Scope());
ClearCacheEnumeratorData* data = static_cast<ClearCacheEnumeratorData*>(aClosure);
if (data->mKeyPrefix.IsEmpty() || StringBeginsWith(key, data->mKeyPrefix)) {
cache->UnloadItems(data->mUnloadFlags);
if (aKeyPrefix.IsEmpty() || StringBeginsWith(key, aKeyPrefix)) {
cache->UnloadItems(aUnloadFlags);
}
}
return PL_DHASH_NEXT;
}
nsresult
@ -507,37 +491,27 @@ DOMStorageManager::Observe(const char* aTopic, const nsACString& aScopePrefix)
{
// Clear everything, caches + database
if (!strcmp(aTopic, "cookie-cleared")) {
ClearCacheEnumeratorData data(DOMStorageCache::kUnloadComplete);
mCaches.EnumerateEntries(ClearCacheEnumerator, &data);
ClearCaches(DOMStorageCache::kUnloadComplete, EmptyCString());
return NS_OK;
}
// Clear from caches everything that has been stored
// while in session-only mode
if (!strcmp(aTopic, "session-only-cleared")) {
ClearCacheEnumeratorData data(DOMStorageCache::kUnloadSession);
data.mKeyPrefix = aScopePrefix;
mCaches.EnumerateEntries(ClearCacheEnumerator, &data);
ClearCaches(DOMStorageCache::kUnloadSession, aScopePrefix);
return NS_OK;
}
// Clear everything (including so and pb data) from caches and database
// for the gived domain and subdomains.
if (!strcmp(aTopic, "domain-data-cleared")) {
ClearCacheEnumeratorData data(DOMStorageCache::kUnloadComplete);
data.mKeyPrefix = aScopePrefix;
mCaches.EnumerateEntries(ClearCacheEnumerator, &data);
ClearCaches(DOMStorageCache::kUnloadComplete, aScopePrefix);
return NS_OK;
}
// Clear all private-browsing caches
if (!strcmp(aTopic, "private-browsing-data-cleared")) {
ClearCacheEnumeratorData data(DOMStorageCache::kUnloadPrivate);
mCaches.EnumerateEntries(ClearCacheEnumerator, &data);
ClearCaches(DOMStorageCache::kUnloadPrivate, EmptyCString());
return NS_OK;
}
@ -549,18 +523,13 @@ DOMStorageManager::Observe(const char* aTopic, const nsACString& aScopePrefix)
return NS_OK;
}
ClearCacheEnumeratorData data(DOMStorageCache::kUnloadComplete);
data.mKeyPrefix = aScopePrefix;
mCaches.EnumerateEntries(ClearCacheEnumerator, &data);
ClearCaches(DOMStorageCache::kUnloadComplete, aScopePrefix);
return NS_OK;
}
if (!strcmp(aTopic, "profile-change")) {
// For case caches are still referenced - clear them completely
ClearCacheEnumeratorData data(DOMStorageCache::kUnloadComplete);
mCaches.EnumerateEntries(ClearCacheEnumerator, &data);
ClearCaches(DOMStorageCache::kUnloadComplete, EmptyCString());
mCaches.Clear();
return NS_OK;
}
@ -588,8 +557,7 @@ DOMStorageManager::Observe(const char* aTopic, const nsACString& aScopePrefix)
}
// This immediately completely reloads all caches from the database.
ClearCacheEnumeratorData data(DOMStorageCache::kTestReload);
mCaches.EnumerateEntries(ClearCacheEnumerator, &data);
ClearCaches(DOMStorageCache::kTestReload, EmptyCString());
return NS_OK;
}

3
dom/storage/DOMStorageManager.h
View File

@ -99,8 +99,7 @@ private:
bool mLowDiskSpace;
bool IsLowDiskSpace() const { return mLowDiskSpace; };
static PLDHashOperator ClearCacheEnumerator(DOMStorageCacheHashKey* aCache,
void* aClosure);
void ClearCaches(uint32_t aUnloadFlags, const nsACString& aKeyPrefix);
protected:
// Keeps usage cache objects for eTLD+1 scopes we have touched.