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/*
* Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the License);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Runtime.InteropServices;
using System.Collections.Generic;
namespace Tizen.Network.Mtp
{
/// <summary>
/// A class for Mtp Storage informations. It allows applications to handle storage informations.
/// </summary>
public class MtpStorage : IDisposable
{
private int _deviceHandle = -1;
private int _storageHandle = -1;
private bool disposed = false;
private List<int> _objectHandleList = new List<int>();
private List<MtpObject> _objectList = new List<MtpObject>();
//private int _objectHandle = 0;
/// <summary>
/// The description.
/// </summary>
public string Description
{
get
{
IntPtr strPtr;
int ret = Interop.Mtp.StorageInformation.GetDescription(_deviceHandle, _storageHandle, out strPtr);
if (ret != (int)MtpError.None)
{
Log.Error(Globals.LogTag, "Failed to get description, Error - " + (MtpError)ret);
return "";
}
return Marshal.PtrToStringAnsi(strPtr);
}
}
/// <summary>
/// The free space.
/// </summary>
public UInt64 FreeSpace
{
get
{
UInt64 freeSpace;
int ret = Interop.Mtp.StorageInformation.GetFreeSpace(_deviceHandle, _storageHandle, out freeSpace);
if (ret != (int)MtpError.None)
{
Log.Error(Globals.LogTag, "Failed to get free space, Error - " + (MtpError)ret);
}
return freeSpace;
}
}
/// <summary>
/// The max capacity.
/// </summary>
public UInt64 MaxCapacity
{
get
{
UInt64 maxCapacity;
int ret = Interop.Mtp.StorageInformation.GetMaxCapacity(_deviceHandle, _storageHandle, out maxCapacity);
if (ret != (int)MtpError.None)
{
Log.Error(Globals.LogTag, "Failed to get free space, Error - " + (MtpError)ret);
}
return maxCapacity;
}
}
/// <summary>
/// The storage type.
/// </summary>
public MtpStorageType StorageType
{
get
{
int storageType;
int ret = Interop.Mtp.StorageInformation.GetStorageType(_deviceHandle, _storageHandle, out storageType);
if (ret != (int)MtpError.None)
{
Log.Error(Globals.LogTag, "Failed to get free space, Error - " + (MtpError)ret);
}
return (MtpStorageType)storageType;
}
}
/// <summary>
/// The volume identifier.
/// </summary>
public string VolumeIdentifier
{
get
{
IntPtr strPtr;
int ret = Interop.Mtp.StorageInformation.GetVolumeIdentifier(_deviceHandle, _storageHandle, out strPtr);
if (ret != (int)MtpError.None)
{
Log.Error(Globals.LogTag, "Failed to get volume identifier, Error - " + (MtpError)ret);
return "";
}
return Marshal.PtrToStringAnsi(strPtr);
}
}
internal MtpStorage(int deviceHandle, int storageHandle)
{
_deviceHandle = deviceHandle;
_storageHandle = storageHandle;
}
~MtpStorage()
{
Dispose(false);
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
private void Dispose(bool disposing)
{
if (disposed)
return;
if (disposing)
{
// Free managed objects.
/* foreach (SmartcardChannel channel in _basicChannelList)
{
channel.Dispose();
_basicChannelList.Remove(channel);
}
foreach (SmartcardChannel channel in _logicalChannelList)
{
channel.Dispose();
_logicalChannelList.Remove(channel);
}
*/ }
//Free unmanaged objects
disposed = true;
}
internal int GetHandle()
{
return _storageHandle;
}
/// <summary>
/// Gets the list of storages.
/// </summary>
/// <returns>List of storage objects.</returns>
public IEnumerable<MtpObject> GetObjectHandles(int parentHandle, MtpFileType fileType)
{
IntPtr objectPtr;
int count = 0;
int ret = Interop.Mtp.GetObjectHandles(_deviceHandle, _storageHandle, parentHandle, (int)fileType, out objectPtr, out count);
if (ret != (int)MtpError.None)
{
Log.Error(Globals.LogTag, "Failed to get object handle lists, Error - " + (MtpError)ret);
MtpErrorFactory.ThrowMtpException(ret);
}
for (int i = 0; i < count; i++)
{
int objectID = Marshal.ReadInt32(objectPtr);
MtpObject objectItem = new MtpObject(_deviceHandle, objectID);
_objectList.Add(objectItem);
objectPtr += sizeof(int);
}
return _objectList;
}
}
}
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