[pulseview.git] / pv / data / decoderstack.h

/*
 * This file is part of the PulseView project.
 *
 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#ifndef PULSEVIEW_PV_DATA_DECODERSTACK_H
#define PULSEVIEW_PV_DATA_DECODERSTACK_H

#include "signaldata.h"

#include <list>

#include <boost/shared_ptr.hpp>
#include <boost/thread.hpp>

#include <QObject>
#include <QString>

struct srd_decoder;
struct srd_probe;
struct srd_proto_data;

namespace DecoderStackTest {
class TwoDecoderStack;
}

namespace pv {

namespace view {
class LogicSignal;

namespace decode {
class Annotation;
}

}

namespace data {

namespace decode {
class Decoder;
}

class Logic;

class DecoderStack : public QObject, public SignalData
{
	Q_OBJECT

private:
	static const double DecodeMargin;
	static const double DecodeThreshold;
	static const int64_t DecodeChunkLength;

public:
	DecoderStack(const srd_decoder *const decoder);

	virtual ~DecoderStack();

	const std::list< boost::shared_ptr<decode::Decoder> >& stack() const;
	void push(boost::shared_ptr<decode::Decoder> decoder);

	const std::vector< boost::shared_ptr<pv::view::decode::Annotation> >
		annotations() const;

	QString error_message();

	void clear_snapshots();

	void begin_decode();

private:
	void decode_proc(boost::shared_ptr<data::Logic> data);

	static void annotation_callback(srd_proto_data *pdata,
		void *decoder);

signals:
	void new_decode_data();

private:

	/**
	 * This mutex prevents more than one decode operation occuring
	 * concurrently.
	 * @todo A proper solution should be implemented to allow multiple
	 * decode operations.
	 */
	static boost::mutex _global_decode_mutex;

	std::list< boost::shared_ptr<decode::Decoder> > _stack;

	mutable boost::mutex _mutex;
	std::vector< boost::shared_ptr<pv::view::decode::Annotation> >
		_annotations;
	QString _error_message;

	boost::thread _decode_thread;

	friend class DecoderStackTest::TwoDecoderStack;
};

} // namespace data
} // namespace pv

#endif // PULSEVIEW_PV_DATA_DECODERSTACK_H
Commit	Line	Data
	1	/*
	2	* This file is part of the PulseView project.
	3	*
	4	* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#ifndef PULSEVIEW_PV_DATA_DECODERSTACK_H
	22	#define PULSEVIEW_PV_DATA_DECODERSTACK_H
	23
	24	#include "signaldata.h"
	25
	26	#include <list>
	27
	28	#include <boost/shared_ptr.hpp>
	29	#include <boost/thread.hpp>
	30
	31	#include <QObject>
	32	#include <QString>
	33
	34	struct srd_decoder;
	35	struct srd_probe;
	36	struct srd_proto_data;
	37
	38	namespace DecoderStackTest {
	39	class TwoDecoderStack;
	40	}
	41
	42	namespace pv {
	43
	44	namespace view {
	45	class LogicSignal;
	46
	47	namespace decode {
	48	class Annotation;
	49	}
	50
	51	}
	52
	53	namespace data {
	54
	55	namespace decode {
	56	class Decoder;
	57	}
	58
	59	class Logic;
	60
	61	class DecoderStack : public QObject, public SignalData
	62	{
	63	Q_OBJECT
	64
	65	private:
	66	static const double DecodeMargin;
	67	static const double DecodeThreshold;
	68	static const int64_t DecodeChunkLength;
	69
	70	public:
	71	DecoderStack(const srd_decoder *const decoder);
	72
	73	virtual ~DecoderStack();
	74
	75	const std::list< boost::shared_ptr<decode::Decoder> >& stack() const;
	76	void push(boost::shared_ptr<decode::Decoder> decoder);
	77
	78	const std::vector< boost::shared_ptr<pv::view::decode::Annotation> >
	79	annotations() const;
	80
	81	QString error_message();
	82
	83	void clear_snapshots();
	84
	85	void begin_decode();
	86
	87	private:
	88	void decode_proc(boost::shared_ptr<data::Logic> data);
	89
	90	static void annotation_callback(srd_proto_data *pdata,
	91	void *decoder);
	92
	93	signals:
	94	void new_decode_data();
	95
	96	private:
	97
	98	/**
	99	* This mutex prevents more than one decode operation occuring
	100	* concurrently.
	101	* @todo A proper solution should be implemented to allow multiple
	102	* decode operations.
	103	*/
	104	static boost::mutex _global_decode_mutex;
	105
	106	std::list< boost::shared_ptr<decode::Decoder> > _stack;
	107
	108	mutable boost::mutex _mutex;
	109	std::vector< boost::shared_ptr<pv::view::decode::Annotation> >
	110	_annotations;
	111	QString _error_message;
	112
	113	boost::thread _decode_thread;
	114
	115	friend class DecoderStackTest::TwoDecoderStack;
	116	};
	117
	118	} // namespace data
	119	} // namespace pv
	120
	121	#endif // PULSEVIEW_PV_DATA_DECODERSTACK_H