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/* -*- 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
#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