/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "GMPLog.h"
#include "GMPStorage.h"
#include "nsClassHashtable.h"
namespace mozilla::gmp {
#define LOG(msg, ...) \
MOZ_LOG(GetGMPLog(), LogLevel::Debug, \
(
"GMPMemoryStorage=%p, " msg,
this,
##__VA_ARGS__))
class GMPMemoryStorage :
public GMPStorage {
public:
GMPMemoryStorage(
const nsACString& aNodeId,
const nsAString& aGMPName) {
LOG(
"Created GMPMemoryStorage, nodeId=%s, gmpName=%s",
aNodeId.BeginReading(), NS_ConvertUTF16toUTF8(aGMPName).get());
}
~GMPMemoryStorage() { LOG(
"Destroyed GMPMemoryStorage"); }
GMPErr Open(
const nsACString& aRecordName) override {
MOZ_ASSERT(!IsOpen(aRecordName));
Record* record = mRecords.GetOrInsertNew(aRecordName);
record->mIsOpen =
true;
return GMPNoErr;
}
bool IsOpen(
const nsACString& aRecordName)
const override {
const Record* record = mRecords.Get(aRecordName);
if (!record) {
return false;
}
return record->mIsOpen;
}
GMPErr Read(
const nsACString& aRecordName,
nsTArray<uint8_t>& aOutBytes) override {
const Record* record = mRecords.Get(aRecordName);
if (!record) {
return GMPGenericErr;
}
aOutBytes = record->mData.Clone();
return GMPNoErr;
}
GMPErr Write(
const nsACString& aRecordName,
const nsTArray<uint8_t>& aBytes) override {
Record* record = nullptr;
if (!mRecords.Get(aRecordName, &record)) {
return GMPClosedErr;
}
record->mData = aBytes.Clone();
return GMPNoErr;
}
void Close(
const nsACString& aRecordName) override {
Record* record = nullptr;
if (!mRecords.Get(aRecordName, &record)) {
return;
}
if (!record->mData.Length()) {
// Record is empty, delete.
mRecords.Remove(aRecordName);
}
else {
record->mIsOpen =
false;
}
}
private:
struct Record {
nsTArray<uint8_t> mData;
bool mIsOpen =
false;
};
nsClassHashtable<nsCStringHashKey, Record> mRecords;
};
already_AddRefed<GMPStorage> CreateGMPMemoryStorage(
const nsACString& aNodeId,
const nsAString& aGMPName) {
return RefPtr<GMPStorage>(
new GMPMemoryStorage(aNodeId, aGMPName)).forget();
}
#undef LOG
}
// namespace mozilla::gmp