96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2015,
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Faculty of Mathematics and Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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*/
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#ifndef IPCPROTOCOL_H_
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#define IPCPROTOCOL_H_
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#include "ipc.h"
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//
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// This is supposed to define an order in which data is read and written
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// from and in the IPCLoopBuffer. To make sure there are no mismatches on client
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// and server
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// and to make communication easier.
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//
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// Some messages are defined below, didn't have the time to implement all
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// messages this way.
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//
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template <typename... MessageData>
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class IPCMessageBase {
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public:
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static bool read(IPCConnection* conn, MessageData... vals) {
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if (conn) {
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return readUnpack(conn, vals...);
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} else {
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return false;
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}
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}
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static bool write(IPCConnection* conn, MessageData... vals) {
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if (conn) {
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return writeUnpack(conn, vals...);
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} else {
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return false;
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}
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}
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private:
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template <typename First, typename... UnpackArgs>
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static bool readUnpack(IPCConnection* conn, First* first,
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UnpackArgs... vals) {
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if (conn->read(first)) {
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return readUnpack(conn, vals...);
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}
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return false;
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}
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static bool readUnpack(IPCConnection* conn) { return true; }
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template <typename First, typename... UnpackArgs>
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static bool writeUnpack(IPCConnection* conn, First* first,
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UnpackArgs... vals) {
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if (conn->write(first)) {
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return writeUnpack(conn, vals...);
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}
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return false;
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}
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static bool writeUnpack(IPCConnection* conn) { return true; }
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};
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typedef IPCMessageBase<IPCMessage*, bool*> IPCMessageBoolResult;
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typedef IPCMessageBase<IPCMessage*, std::set<int>*> IPCMessageIntSetResult;
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// refid, update, globalid, coords
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typedef IPCMessageBase<int*, bool*, unsigned int*, IPCArray<double>*>
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IPCMessageDistFilter;
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// refid, requestOnly, coords
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typedef IPCMessageBase<int*, bool*, IPCArray<double>*> IPCMessageDistAddRect;
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#endif /* IPCPROTOCOL_H_ */
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