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/*
Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 Her Majesty
the Queen in Right of Canada (Communications Research Center Canada)
Copyright (C) 2018
Matthias P. Braendli, matthias.braendli@mpb.li
http://opendigitalradio.org
*/
/*
This file is part of ODR-DabMod.
ODR-DabMod is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
ODR-DabMod is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ODR-DabMod. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "ModPlugin.h"
#include <memory>
#include <sys/types.h>
#include <vector>
#include <list>
#include <cstdio>
using Metadata_vec_sptr = std::shared_ptr<std::vector<flowgraph_metadata> >;
class Node
{
public:
Node(std::shared_ptr<ModPlugin> plugin);
~Node();
Node(const Node&) = delete;
Node& operator=(const Node&) = delete;
std::shared_ptr<ModPlugin> plugin() { return myPlugin; }
int process();
time_t processTime() const;
void addProcessTime(time_t time);
void addOutputBuffer(Buffer::sptr& buffer, Metadata_vec_sptr& md);
void removeOutputBuffer(Buffer::sptr& buffer, Metadata_vec_sptr& md);
void addInputBuffer(Buffer::sptr& buffer, Metadata_vec_sptr& md);
void removeInputBuffer(Buffer::sptr& buffer, Metadata_vec_sptr& md);
protected:
std::list<Buffer::sptr> myInputBuffers;
std::list<Buffer::sptr> myOutputBuffers;
std::list<Metadata_vec_sptr> myInputMetadata;
std::list<Metadata_vec_sptr> myOutputMetadata;
#if TRACE
std::list<FILE*> myDebugFiles;
#endif
std::shared_ptr<ModPlugin> myPlugin;
time_t myProcessTime = 0;
};
class Edge
{
public:
Edge(std::shared_ptr<Node>& src, std::shared_ptr<Node>& dst);
~Edge();
Edge(const Edge&) = delete;
Edge& operator=(const Edge&) = delete;
protected:
std::shared_ptr<Node> mySrcNode;
std::shared_ptr<Node> myDstNode;
std::shared_ptr<Buffer> myBuffer;
std::shared_ptr<std::vector<flowgraph_metadata> > myMetadata;
};
class Flowgraph
{
public:
Flowgraph(bool showProcessTime);
virtual ~Flowgraph();
Flowgraph(const Flowgraph&) = delete;
Flowgraph& operator=(const Flowgraph&) = delete;
void connect(std::shared_ptr<ModPlugin> input,
std::shared_ptr<ModPlugin> output);
bool run();
protected:
std::vector<std::shared_ptr<Node> > nodes;
std::vector<std::shared_ptr<Edge> > edges;
time_t myProcessTime = 0;
bool myShowProcessTime;
};
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