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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef CacheIndexIterator__h__
#define CacheIndexIterator__h__
#include "nsTArray.h"
#include "nsCOMPtr.h"
#include "mozilla/SHA1.h"
#include "mozilla/StaticMutex.h"
namespace mozilla {
namespace net {
class CacheIndex;
class CacheIndexRecordWrapper;
class CacheIndexIterator {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(CacheIndexIterator)
CacheIndexIterator(CacheIndex* aIndex, bool aAddNew);
protected:
virtual ~CacheIndexIterator();
public:
// Returns a hash of a next entry. If there is no entry NS_ERROR_NOT_AVAILABLE
// is returned and the iterator is closed. Other error is returned when the
// iterator is closed for other reason, e.g. shutdown.
nsresult GetNextHash(SHA1Sum::Hash* aHash);
// Closes the iterator. This means the iterator is removed from the list of
// iterators in CacheIndex.
nsresult Close();
protected:
friend class CacheIndex;
nsresult CloseInternal(nsresult aStatus);
bool ShouldBeNewAdded() { return mAddNew; }
virtual void AddRecord(CacheIndexRecordWrapper* aRecord,
const StaticMutexAutoLock& aProofOfLock);
bool RemoveRecord(CacheIndexRecordWrapper* aRecord,
const StaticMutexAutoLock& aProofOfLock);
bool ReplaceRecord(CacheIndexRecordWrapper* aOldRecord,
CacheIndexRecordWrapper* aNewRecord,
const StaticMutexAutoLock& aProofOfLock);
void ClearRecords(const StaticMutexAutoLock& aProofOfLock);
nsresult mStatus;
RefPtr<CacheIndex> mIndex;
nsTArray<RefPtr<CacheIndexRecordWrapper>> mRecords;
bool mAddNew;
};
} // namespace net
} // namespace mozilla
#endif
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