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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/. */
#include "CacheLog.h"
#include "CacheIndexIterator.h"
#include "CacheIndex.h"
#include "nsString.h"
#include "mozilla/DebugOnly.h"
namespace mozilla {
namespace net {
CacheIndexIterator::CacheIndexIterator(CacheIndex *aIndex, bool aAddNew)
: mStatus(NS_OK)
, mIndex(aIndex)
, mAddNew(aAddNew)
{
LOG(("CacheIndexIterator::CacheIndexIterator() [this=%p]", this));
}
CacheIndexIterator::~CacheIndexIterator()
{
LOG(("CacheIndexIterator::~CacheIndexIterator() [this=%p]", this));
Close();
}
nsresult
CacheIndexIterator::GetNextHash(SHA1Sum::Hash *aHash)
{
LOG(("CacheIndexIterator::GetNextHash() [this=%p]", this));
StaticMutexAutoLock lock(CacheIndex::sLock);
if (NS_FAILED(mStatus)) {
return mStatus;
}
if (!mRecords.Length()) {
CloseInternal(NS_ERROR_NOT_AVAILABLE);
return mStatus;
}
memcpy(aHash, mRecords[mRecords.Length() - 1]->mHash, sizeof(SHA1Sum::Hash));
mRecords.RemoveElementAt(mRecords.Length() - 1);
return NS_OK;
}
nsresult
CacheIndexIterator::Close()
{
LOG(("CacheIndexIterator::Close() [this=%p]", this));
StaticMutexAutoLock lock(CacheIndex::sLock);
return CloseInternal(NS_ERROR_NOT_AVAILABLE);
}
nsresult
CacheIndexIterator::CloseInternal(nsresult aStatus)
{
LOG(("CacheIndexIterator::CloseInternal() [this=%p, status=0x%08x]", this,
aStatus));
// Make sure status will be a failure
MOZ_ASSERT(NS_FAILED(aStatus));
if (NS_SUCCEEDED(aStatus)) {
aStatus = NS_ERROR_UNEXPECTED;
}
if (NS_FAILED(mStatus)) {
return NS_ERROR_NOT_AVAILABLE;
}
DebugOnly<bool> removed = mIndex->mIterators.RemoveElement(this);
MOZ_ASSERT(removed);
mStatus = aStatus;
return NS_OK;
}
void
CacheIndexIterator::AddRecord(CacheIndexRecord *aRecord)
{
LOG(("CacheIndexIterator::AddRecord() [this=%p, record=%p]", this, aRecord));
mRecords.AppendElement(aRecord);
}
bool
CacheIndexIterator::RemoveRecord(CacheIndexRecord *aRecord)
{
LOG(("CacheIndexIterator::RemoveRecord() [this=%p, record=%p]", this,
aRecord));
return mRecords.RemoveElement(aRecord);
}
bool
CacheIndexIterator::ReplaceRecord(CacheIndexRecord *aOldRecord,
CacheIndexRecord *aNewRecord)
{
LOG(("CacheIndexIterator::ReplaceRecord() [this=%p, oldRecord=%p, "
"newRecord=%p]", this, aOldRecord, aNewRecord));
if (RemoveRecord(aOldRecord)) {
AddRecord(aNewRecord);
return true;
}
return false;
}
} // namespace net
} // namespace mozilla
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