private unsafe static int Read(
out IntPtr buffer_p,
out UIntPtr len_p,
out GitObjectType type_p,
IntPtr backend,
ref GitOid oid)
{
buffer_p = IntPtr.Zero;
len_p = UIntPtr.Zero;
type_p = GitObjectType.Bad;
OdbBackend odbBackend = MarshalOdbBackend(backend);
if (odbBackend == null)
{
return((int)GitErrorCode.Error);
}
Stream dataStream = null;
try
{
ObjectType objectType;
int toReturn = odbBackend.Read(new ObjectId(oid), out dataStream, out objectType);
if (toReturn != 0)
{
return(toReturn);
}
// Caller is expected to give us back a stream created with the Allocate() method.
var memoryStream = dataStream as UnmanagedMemoryStream;
if (memoryStream == null)
{
return((int)GitErrorCode.Error);
}
len_p = new UIntPtr((ulong)memoryStream.Capacity);
type_p = objectType.ToGitObjectType();
memoryStream.Seek(0, SeekOrigin.Begin);
buffer_p = new IntPtr(memoryStream.PositionPointer);
}
catch (Exception ex)
{
Proxy.giterr_set_str(GitErrorCategory.Odb, ex);
return((int)GitErrorCode.Error);
}
finally
{
if (dataStream != null)
{
dataStream.Dispose();
}
}
return((int)GitErrorCode.Ok);
}
private unsafe static int Read(
out IntPtr buffer_p,
out UIntPtr len_p,
out GitObjectType type_p,
IntPtr backend,
ref GitOid oid)
{
buffer_p = IntPtr.Zero;
len_p = UIntPtr.Zero;
type_p = GitObjectType.Bad;
OdbBackend odbBackend = GCHandle.FromIntPtr(Marshal.ReadIntPtr(backend, GitOdbBackend.GCHandleOffset)).Target as OdbBackend;
if (odbBackend != null)
{
Stream dataStream = null;
GitObjectType objectType;
try
{
int toReturn = odbBackend.Read(oid.Id, out dataStream, out objectType);
if (0 == toReturn)
{
// Caller is expected to give us back a stream created with the Allocate() method.
UnmanagedMemoryStream memoryStream = dataStream as UnmanagedMemoryStream;
if (null == memoryStream)
{
return((int)GitErrorCode.Error);
}
len_p = new UIntPtr((ulong)memoryStream.Capacity);
type_p = objectType;
memoryStream.Seek(0, SeekOrigin.Begin);
buffer_p = new IntPtr(memoryStream.PositionPointer);
}
return(toReturn);
}
catch (Exception ex)
{
Proxy.giterr_set_str(GitErrorCategory.Odb, ex);
}
finally
{
if (null != dataStream)
{
dataStream.Dispose();
}
}
}
return((int)GitErrorCode.Error);
}
