CoolVLViewer/indra/llmessage/lltransfertargetfile.h

/**
 * @file lltransfertargetfile.h
 * @brief Transfer system for receiving a file.
 *
 * $LicenseInfo:firstyear=2006&license=viewergpl$
 *
 * Copyright (c) 2006-2009, Linden Research, Inc.
 *
 * Second Life Viewer Source Code
 * The source code in this file ("Source Code") is provided by Linden Lab
 * to you under the terms of the GNU General Public License, version 2.0
 * ("GPL"), unless you have obtained a separate licensing agreement
 * ("Other License"), formally executed by you and Linden Lab.  Terms of
 * the GPL can be found in doc/GPL-license.txt in this distribution, or
 * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
 *
 * There are special exceptions to the terms and conditions of the GPL as
 * it is applied to this Source Code. View the full text of the exception
 * in the file doc/FLOSS-exception.txt in this software distribution, or
 * online at
 * http://secondlifegrid.net/programs/open_source/licensing/flossexception
 *
 * By copying, modifying or distributing this software, you acknowledge
 * that you have read and understood your obligations described above,
 * and agree to abide by those obligations.
 *
 * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
 * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
 * COMPLETENESS OR PERFORMANCE.
 * $/LicenseInfo$
 */

#ifndef LL_LLTRANSFERTARGETFILE_H
#define LL_LLTRANSFERTARGETFILE_H

#include "lltransfermanager.h"

typedef void (*LLTTFCompleteCallback)(LLTSCode status, void* user_data);

class LLTransferTargetParamsFile : public LLTransferTargetParams
{
public:
	LLTransferTargetParamsFile()
	:	LLTransferTargetParams(LLTTT_FILE),
	 	mCompleteCallback(NULL),
	 	mUserData(NULL)
	{
	}

	LL_INLINE void setFilename(const std::string& filename)
	{
		mFilename = filename;
	}

	LL_INLINE void setCallback(LLTTFCompleteCallback cb, void* user_data)
	{
		mCompleteCallback = cb;
		mUserData = user_data;
	}

	friend class LLTransferTargetFile;

protected:
	std::string				mFilename;
	LLTTFCompleteCallback	mCompleteCallback;
	void*					mUserData;
};

class LLTransferTargetFile : public LLTransferTarget
{
protected:
	LOG_CLASS(LLTransferTargetFile);

public:
	LLTransferTargetFile(const LLUUID& uuid, LLTransferSourceType src_type);
	~LLTransferTargetFile() override;

	static void requestTransfer(LLTransferTargetChannel* channelp,
								const char* local_filename,
								const LLTransferSourceParams& source_params,
								LLTTFCompleteCallback callback);
protected:
	bool unpackParams(LLDataPacker& dp) override;
	void applyParams(const LLTransferTargetParams& params) override;
	LLTSCode dataCallback(S32 packet_id, U8* in_datap, S32 in_size) override;
	void completionCallback(LLTSCode status) override;

protected:
	LLTransferTargetParamsFile	mParams;
	LLFILE*						mFP;
};

#endif // LL_LLTRANSFERTARGETFILE_H