/usr/include/svxlink/AsyncAudioDeviceFactory.h is in libasyncaudio-dev 14.08.1-2.
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@file AsyncAudioDeviceFactory.h
@brief A class for handling audio device types
@author Tobias Blomberg / SM0SVX
@date 2009-12-26
\verbatim
Async - A library for programming event driven applications
Copyright (C) 2003-2013 Tobias Blomberg / SM0SVX
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
\endverbatim
*/
#ifndef ASYNC_AUDIO_DEVICE_FACTORY_INCLUDED
#define ASYNC_AUDIO_DEVICE_FACTORY_INCLUDED
/****************************************************************************
*
* System Includes
*
****************************************************************************/
#include <string>
#include <map>
/****************************************************************************
*
* Project Includes
*
****************************************************************************/
/****************************************************************************
*
* Local Includes
*
****************************************************************************/
/****************************************************************************
*
* Forward declarations
*
****************************************************************************/
/****************************************************************************
*
* Namespace
*
****************************************************************************/
namespace Async
{
/****************************************************************************
*
* Forward declarations of classes inside of the declared namespace
*
****************************************************************************/
class AudioDevice;
/****************************************************************************
*
* Defines & typedefs
*
****************************************************************************/
/**
* @brief Register a new audio device type
* @param _name The name of the audio device type
* @param _class The name of the class that handle the new audio device type
*/
#define REGISTER_AUDIO_DEVICE_TYPE(_name, _class) \
AudioDevice *create_ ## _class(const string& dev_name) \
{ return new _class(dev_name); } \
static bool _class ## _creator_registered = \
AudioDeviceFactory::instance()->registerCreator(_name, \
create_ ## _class)
/****************************************************************************
*
* Exported Global Variables
*
****************************************************************************/
/****************************************************************************
*
* Class definitions
*
****************************************************************************/
/**
@brief A factory class for audio devices
@author Tobias Blomberg / SM0SVX
@date 2009-12-26
This class is a factory class for creating audio devices. Use the
REGISTER_AUDIO_DEVICE_TYPE macro to register a new audio device type.
New audio device instances are created using the create method.
*/
class AudioDeviceFactory
{
public:
typedef AudioDevice* (*CreatorFunc)(const std::string &dev_designator);
/**
* @brief Get the factory singleton instance
* @return Returns the factory instance
*/
static AudioDeviceFactory *instance(void)
{
if (_instance == 0)
{
_instance = new AudioDeviceFactory;
}
return _instance;
}
/**
* @brief Destructor
*/
~AudioDeviceFactory(void);
/**
* @brief Register a new audio device type
* @param name The name of the audio device type (e.g. alsa, oss etc)
* @param creator A function that create the AudioDevice object
* @return Return \em true on success or else \em false
*/
bool registerCreator(const std::string &name, CreatorFunc creator);
/**
* @brief Create a new instance of the specified audio device type
* @param name The audio device type (e.g. alsa, oss etc)
* @param dev_name The audio device name (e.g. plughw:0, /dev/dsp etc)
* @return Returns an AudioDevice object
*/
AudioDevice *create(const std::string &name, const std::string &dev_name);
/**
* @brief List valid device types
* @return Returns a space separated list of valid device type names
*/
std::string validDevTypes(void) const;
protected:
/**
* @brief Default constuctor
*/
AudioDeviceFactory(void);
private:
typedef std::map<std::string, CreatorFunc> CreatorMap;
static AudioDeviceFactory *_instance;
CreatorMap creator_map;
AudioDeviceFactory(const AudioDeviceFactory&);
AudioDeviceFactory& operator=(const AudioDeviceFactory&);
}; /* class AudioDeviceFactory */
} /* namespace */
#endif /* ASYNC_AUDIO_DEVICE_FACTORY_INCLUDED */
/*
* This file has not been truncated
*/
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