/* 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::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));
StaticMutexAutoLock lock(CacheIndex::sLock);
ClearRecords(lock);
CloseInternal(NS_ERROR_NOT_AVAILABLE);
}
nsresult CacheIndexIterator::GetNextHash(SHA1Sum::Hash* aHash) {
LOG((
"CacheIndexIterator::GetNextHash() [this=%p]", this));
StaticMutexAutoLock lock(CacheIndex::sLock);
if (NS_FAILED(mStatus)) {
return mStatus;
}
if (mRecords.IsEmpty()) {
CloseInternal(NS_ERROR_NOT_AVAILABLE);
return mStatus;
}
CacheIndexRecordWrapper* record = *mRecords.begin();
memcpy(aHash, record->Get()->mHash,
sizeof(SHA1Sum::Hash));
mRecords.Remove(record);
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%08" PRIx32
"]",
this, static_cast<uint32_t>(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;
}
CacheIndex::sLock.AssertCurrentThreadOwns();
DebugOnly<
bool> removed = mIndex->mIterators.RemoveElement(this);
MOZ_ASSERT(removed);
mStatus = aStatus;
return NS_OK;
}
void CacheIndexIterator::ClearRecords(
const StaticMutexAutoLock& aProofOfLock) {
mRecords.Clear();
}
void CacheIndexIterator::AddRecord(CacheIndexRecordWrapper* aRecord,
const StaticMutexAutoLock& aProofOfLock) {
LOG((
"CacheIndexIterator::AddRecord() [this=%p, record=%p]", this, aRecord));
mRecords.Insert(aRecord);
}
bool CacheIndexIterator::RemoveRecord(CacheIndexRecordWrapper* aRecord,
const StaticMutexAutoLock& aProofOfLock) {
LOG((
"CacheIndexIterator::RemoveRecord() [this=%p, record=%p]", this,
aRecord));
return mRecords.EnsureRemoved(aRecord);
}
bool CacheIndexIterator::ReplaceRecord(
CacheIndexRecordWrapper* aOldRecord, CacheIndexRecordWrapper* aNewRecord,
const StaticMutexAutoLock& aProofOfLock) {
LOG(
(
"CacheIndexIterator::ReplaceRecord() [this=%p, oldRecord=%p, "
"newRecord=%p]",
this, aOldRecord, aNewRecord));
if (RemoveRecord(aOldRecord, aProofOfLock)) {
AddRecord(aNewRecord, aProofOfLock);
return true;
}
return false;
}
}
// namespace mozilla::net