0092414470
When a child process sends a documentsizechanged: message to the parent, to be forwarded to the client, parse it and update a cached status of the doucment, if available, and send an updated status: message to the client instead. Note that clients should not rely on getting only status: messages and never documentsizechanged: messages, though; the cache might be cleaned at any time even while the server is running. If there is no cached status of the document to update and re-use, we have to forward the documentsizechanged: message as such to the client.
44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef INCLUDED_TILECACHE_HPP
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#define INCLUDED_TILECACHE_HPP
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#include <fstream>
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#include <memory>
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#include <string>
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#include <Poco/Timestamp.h>
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class TileCache
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{
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public:
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TileCache(const std::string& docURL);
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std::unique_ptr<std::fstream> lookupTile(int part, int width, int height, int tilePosX, int tilePosY, int tileWidth, int tileHeight);
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void saveTile(int part, int width, int height, int tilePosX, int tilePosY, int tileWidth, int tileHeight, const char *data, size_t size);
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std::string getStatus();
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// The parameter is a status: message
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void saveStatus(const std::string& status);
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// The parameter is a documentsizechanged: message
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bool updateSizeInStatus(const std::string& status, std::string& newStatus);
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private:
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std::string cacheDirName();
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std::string cacheFileName(int part, int width, int height, int tilePosX, int tilePosY, int tileWidth, int tileHeight);
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Poco::Timestamp getLastModified();
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const std::string& _docURL;
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};
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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