Imported existing code

indra/llmessage/lltransfersourceasset.h

@@ -0,0 +1,107 @@
+/** 
+ * @file lltransfersourceasset.h
+ * @brief Transfer system for sending an asset.
+ *
+ * $LicenseInfo:firstyear=2006&license=viewergpl$
+ * 
+ * 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_LLTRANSFERSOURCEASSET_H
+#define LL_LLTRANSFERSOURCEASSET_H
+
+#include "lltransfermanager.h"
+#include "llassetstorage.h"
+
+class LLVFile;
+
+class LLTransferSourceParamsAsset : public LLTransferSourceParams
+{
+public:
+	LLTransferSourceParamsAsset();
+	virtual ~LLTransferSourceParamsAsset() {}
+	/*virtual*/ void packParams(LLDataPacker &dp) const;
+	/*virtual*/ BOOL unpackParams(LLDataPacker &dp);
+
+	void setAsset(const LLUUID &asset_id, const LLAssetType::EType asset_type);
+
+	LLUUID getAssetID() const						{ return mAssetID; }
+	LLAssetType::EType getAssetType() const			{ return mAssetType; }
+
+protected:
+	LLUUID				mAssetID;
+	LLAssetType::EType	mAssetType;
+};
+
+class LLTransferSourceAsset : public LLTransferSource
+{
+public:
+	LLTransferSourceAsset(const LLUUID &request_id, const F32 priority);
+	virtual ~LLTransferSourceAsset();
+
+	static void responderCallback(LLVFS *vfs, const LLUUID& uuid, LLAssetType::EType type,
+								  void *user_data, S32 result, LLExtStat ext_status );
+protected:
+	/*virtual*/ void initTransfer();
+	/*virtual*/ F32 updatePriority();
+	/*virtual*/ LLTSCode dataCallback(const S32 packet_id,
+									  const S32 max_bytes,
+									  U8 **datap,
+									  S32 &returned_bytes,
+									  BOOL &delete_returned);
+	/*virtual*/ void completionCallback(const LLTSCode status);
+
+	virtual void packParams(LLDataPacker& dp) const;
+	/*virtual*/ BOOL unpackParams(LLDataPacker &dp);
+
+protected:
+	LLTransferSourceParamsAsset mParams;
+	BOOL mGotResponse;
+
+	S32 mCurPos;
+};
+
+/**
+ * @brief Quick check to see if the asset allows direct download.
+ *
+ * This might not be the right place for this function call, but it
+ * originally started life inside the LLTransferSourceAsset code.
+ * @param type The type of asset.
+ * @return Returns true if the asset can be fetched by id.
+ */
+bool is_asset_fetch_by_id_allowed(LLAssetType::EType type);
+
+/**
+ * @brief Quick check to see if all asset data can be known by the viewer.
+ *
+ * This might not be the right place for this function call, but it
+ * originally started life inside the LLTransferSourceAsset code.
+ * @param type The type of asset.
+ * @return Returns true if the asset id can be transmitted to the viewer.
+ */
+bool is_asset_id_knowable(LLAssetType::EType type);
+
+#endif // LL_LLTRANSFERSOURCEASSET_H