0 if
an error occurred.
DataInputStream.readInt64
long readInt64(gio.cancellable.Cancellable cancellable = null)Reads a 64-bit/8-byte value from stream.
In order to get the correct byte order for this read operation, see [gio.data_input_stream.DataInputStream.getByteOrder] and [gio.data_input_stream.DataInputStream.setByteOrder].
If cancellable is not null, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error [gio.types.IOErrorEnum.Cancelled] will be returned.
Parameters
cancellable | optional #GCancellable object, null to ignore. |
Returns
a signed 64-bit/8-byte value read from stream or
Throws
[ErrorWrap]