Quelle CacheIndexIterator.cpp Sprache: C

/* 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.Length()) {
    CloseInternal(NS_ERROR_NOT_AVAILABLE);
    return mStatus;
  }

  memcpy(aHash, mRecords.PopLastElement()->Get()->mHash, sizeof(SHA1Sum::Hash));

  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.AppendElement(aRecord);
}

bool CacheIndexIterator::RemoveRecord(CacheIndexRecordWrapper* aRecord,
                                      const StaticMutexAutoLock& aProofOfLock) {
  LOG(("CacheIndexIterator::RemoveRecord() [this=%p, record=%p]", this,
       aRecord));

  return mRecords.RemoveElement(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

quality100%

¤ Dauer der Verarbeitung: 0.15 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.