/* 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_FMT(GetGMPLog(), LogLevel::Debug,
"GMPMemoryStorage={}, " msg, \
fmt::ptr(this),
##__VA_ARGS__)
class GMPMemoryStorage : public GMPStorage {
public:
GMPMemoryStorage(
const nsACString& aNodeId,
const nsAString& aGMPName) {
LOG(
"Created GMPMemoryStorage, nodeId={}, gmpName={}",
PromiseFlatCString(aNodeId).get(),
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