internal static void GetTrack(MtpDeviceHandle handle, uint trackId, string destPath, ProgressFunction callback, IntPtr data)
{
if (LIBMTP_Get_Track_To_File(handle, trackId, destPath, callback, data) != 0)
{
LibMtpException.CheckErrorStack(handle);
throw new LibMtpException(ErrorCode.General, "Could not download track from the device");
}
}
internal static void SendTrack(MtpDeviceHandle handle, string path, ref TrackStruct metadata, ProgressFunction callback, IntPtr data)
{
if (LIBMTP_Send_Track_From_File(handle, path, ref metadata, callback, data) != 0)
{
LibMtpException.CheckErrorStack(handle);
throw new LibMtpException(ErrorCode.General, "Could not upload the track");
}
}
internal static void DeleteObject(MtpDeviceHandle handle, uint object_id)
{
if (LIBMTP_Delete_Object(handle, object_id) != 0)
{
LibMtpException.CheckErrorStack(handle);
throw new LibMtpException(ErrorCode.General, "Could not delete the track");
}
}
internal static void GetBatteryLevel(MtpDeviceHandle handle, out ushort maxLevel, out ushort currentLevel)
{
int result = LIBMTP_Get_Batterylevel(handle, out maxLevel, out currentLevel);
if (result != 0)
{
LibMtpException.CheckErrorStack(handle);
throw new LibMtpException(ErrorCode.General, "Could not retrieve battery stats");
}
}
internal static uint CreateFolder(MtpDeviceHandle handle, string name, uint parentId)
{
uint result = LIBMTP_Create_Folder(handle, name, parentId, 0);
if (result == 0)
{
LibMtpException.CheckErrorStack(handle);
throw new LibMtpException(ErrorCode.General, "Could not create folder on the device");
}
return(result);
}
internal static void CheckErrorStack(MtpDeviceHandle handle)
{
IntPtr ptr = MtpDevice.GetErrorStack(handle);
if (ptr == IntPtr.Zero)
{
return;
}
LibMtpException ex = null;
while (ptr != IntPtr.Zero)
{
Error e = (Error)Marshal.PtrToStructure(ptr, typeof(Error));
ex = new LibMtpException(e.errornumber, e.error_text, ex);
ptr = e.next;
}
// Once we throw the exception, clear the error stack
MtpDevice.ClearErrorStack(handle);
throw ex;
}
internal static void CheckErrorStack(MtpDeviceHandle handle)
{
IntPtr ptr = MtpDevice.GetErrorStack (handle);
if (ptr == IntPtr.Zero)
return;
LibMtpException ex = null;
while (ptr != IntPtr.Zero) {
Error e = (Error)Marshal.PtrToStructure (ptr, typeof(Error));
ex = new LibMtpException (e.errornumber, e.error_text, ex);
ptr = e.next;
}
// Once we throw the exception, clear the error stack
MtpDevice.ClearErrorStack (handle);
throw ex;
}
