1 files changed, 110 insertions, 0 deletions
diff --git a/netwerk/cache2/CacheIndexIterator.cpp b/netwerk/cache2/CacheIndexIterator.cpp
new file mode 100644
index 0000000000..5f1a78470c
--- /dev/null
+++ b/netwerk/cache2/CacheIndexIterator.cpp
@@ -0,0 +1,110 @@
+/* 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