public Result Get(out SaveDataIndexerValue value, ref SaveDataAttribute key)
{
value = default;
lock (Locker)
{
Result rc = Initialize();
if (rc.IsFailure())
{
return(rc);
}
rc = EnsureKvDatabaseLoaded(false);
if (rc.IsFailure())
{
return(rc);
}
rc = KvDatabase.Get(ref key, SpanHelpers.AsByteSpan(ref value));
if (rc.IsFailure())
{
return(ResultFs.TargetNotFound.LogConverted(rc));
}
return(Result.Success);
}
}
public Result Add(out ulong saveDataId, ref SaveDataAttribute key)
{
saveDataId = default;
lock (Locker)
{
Result rc = Initialize();
if (rc.IsFailure())
{
return(rc);
}
rc = EnsureKvDatabaseLoaded(false);
if (rc.IsFailure())
{
return(rc);
}
SaveDataIndexerValue value = default;
rc = KvDatabase.Get(ref key, SpanHelpers.AsByteSpan(ref value));
if (rc.IsSuccess())
{
return(ResultFs.SaveDataPathAlreadyExists.Log());
}
LastPublishedId++;
ulong newSaveDataId = LastPublishedId;
value = new SaveDataIndexerValue {
SaveDataId = newSaveDataId
};
rc = KvDatabase.Set(ref key, SpanHelpers.AsByteSpan(ref value));
if (rc.IsFailure())
{
LastPublishedId--;
return(rc);
}
rc = AdjustOpenedInfoReaders(ref key);
if (rc.IsFailure())
{
return(rc);
}
saveDataId = newSaveDataId;
return(Result.Success);
}
}
public Result AddSystemSaveData(ref SaveDataAttribute key)
{
lock (Locker)
{
Result rc = Initialize();
if (rc.IsFailure())
{
return(rc);
}
rc = EnsureKvDatabaseLoaded(false);
if (rc.IsFailure())
{
return(rc);
}
foreach (KeyValuePair <SaveDataAttribute, byte[]> kvp in KvDatabase)
{
ref SaveDataIndexerValue value = ref Unsafe.As <byte, SaveDataIndexerValue>(ref kvp.Value[0]);
if (key.SaveDataId == value.SaveDataId)
{
return(ResultFs.SaveDataPathAlreadyExists.Log());
}
}
var newValue = new SaveDataIndexerValue
{
SaveDataId = key.SaveDataId
};
rc = KvDatabase.Set(ref key, SpanHelpers.AsByteSpan(ref newValue));
if (rc.IsFailure())
{
return(rc);
}
rc = AdjustOpenedInfoReaders(ref key);
if (rc.IsFailure())
{
return(rc);
}
return(rc);
}
public Result Commit()
{
lock (Locker)
{
Result rc = Initialize();
if (rc.IsFailure())
{
return(rc);
}
rc = EnsureKvDatabaseLoaded(false);
if (rc.IsFailure())
{
return(rc);
}
var mount = new Mounter();
try
{
rc = mount.Initialize(FsClient, MountName, SpaceId, SaveDataId);
if (rc.IsFailure())
{
return(rc);
}
rc = KvDatabase.WriteDatabaseToFile();
if (rc.IsFailure())
{
return(rc);
}
string idFilePath = $"{MountName}:/{LastIdFileName}";
rc = FsClient.OpenFile(out FileHandle handle, idFilePath, OpenMode.Write);
if (rc.IsFailure())
{
return(rc);
}
bool fileAlreadyClosed = false;
try
{
ulong lastId = LastPublishedId;
rc = FsClient.WriteFile(handle, 0, SpanHelpers.AsByteSpan(ref lastId), WriteOption.None);
if (rc.IsFailure())
{
return(rc);
}
rc = FsClient.FlushFile(handle);
if (rc.IsFailure())
{
return(rc);
}
FsClient.CloseFile(handle);
fileAlreadyClosed = true;
return(FsClient.Commit(MountName));
}
finally
{
if (!fileAlreadyClosed)
{
FsClient.CloseFile(handle);
}
}
}
finally
{
mount.Dispose();
}
}
}
