internal unsafe void ReadFrom(IntPtr kp, int ks, IntPtr vp, int vs)
{
//Log.Debug($"Key = {StringHelper.ToHexString(kv.KeyPtr, kv.KeySize.ToInt32())}");
//Log.Debug($"Value = {StringHelper.ToHexString(kv.ValuePtr, kv.ValueSize.ToInt32())}");
byte *keyPtr = (byte *)kp.ToPointer();
int keySize = ks - 2;
if (keyPtr[0] == BlobStore.KEY_TYPE_PATH)
{
IsFile = false;
var keySpan = new ReadOnlySpan <byte>(keyPtr + 2, keySize);
int sepIndex = keySpan.LastIndexOf((byte)0) + 1;
Name = new string((sbyte *)(keyPtr + 2), sepIndex, keySize - sepIndex, System.Text.Encoding.UTF8);
BlobPath path = new BlobPath();
path.ReadFrom(vp);
Size = (int)path.GetChunksUsedSize();
}
else if (keyPtr[0] == BlobStore.KEY_TYPE_FILE)
{
IsFile = true;
Name = new string((sbyte *)(keyPtr + 19), 0, keySize - 17, System.Text.Encoding.UTF8);
BlobFile *filePtr = (BlobFile *)vp.ToPointer();
Size = (int)filePtr->Size;
}
else
{
throw new Exception("Unkonwn key type");
}
}
private static async ValueTask <BlobFile> GetFileMetaAsync(byte appId, string path)
{
if (string.IsNullOrEmpty(path))
{
throw new ArgumentNullException(nameof(path));
}
var pathData = System.Text.Encoding.UTF8.GetBytes(path);
if (pathData.Length > MaxPathSize)
{
throw new ArgumentException("Path length out of range", nameof(path));
}
IntPtr pathPtr;
unsafe
{
//暂复制路径
var pathDataPtr = stackalloc byte[pathData.Length + 1];
pathDataPtr[0] = (byte)BlobReadType.kGetFileMeta;
pathPtr = new IntPtr(pathDataPtr);
Marshal.Copy(pathData, 0, pathPtr + 1, pathData.Length);
}
ulong metaRaftGroupId = (ulong)appId << IdUtil.RAFTGROUPID_APPID_OFFSET;
INativeData res = await StoreApi.Api.ReadIndexByGetAsync(metaRaftGroupId, pathPtr, (uint)(pathData.Length + 1));
unsafe
{
BlobFile *srcPtr = (BlobFile *)res.DataPtr.ToPointer();
return(*srcPtr);
}
}
