ibackend.h

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/*
 * Copyright (c) 2019 Roc Streaming authors
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
//! @file roc_sndio/ibackend.h
//! @brief Backend interface.
 
#ifndef ROC_SNDIO_IBACKEND_H_
#define ROC_SNDIO_IBACKEND_H_
 
#include "roc_core/array.h"
#include "roc_core/iarena.h"
#include "roc_sndio/config.h"
#include "roc_sndio/device_type.h"
#include "roc_sndio/driver.h"
#include "roc_sndio/idevice.h"
 
namespace roc {
namespace sndio {
 
//! Maximum number of backends.
static const size_t MaxBackends = 8;
 
//! Backend interface.
class IBackend {
public:
    virtual ~IBackend();
 
    //! Append supported drivers to the list.
    virtual void discover_drivers(core::Array<DriverInfo, MaxDrivers>& driver_list) = 0;
 
    //! Create and open a sink or source.
    virtual IDevice* open_device(DeviceType device_type,
                                 DriverType driver_type,
                                 const char* driver,
                                 const char* path,
                                 const Config& config,
                                 core::IArena& arena) = 0;
    //! Returns name of backend.
    virtual const char* name() const = 0;
};
 
} // namespace sndio
} // namespace roc
 
#endif // ROC_SNDIO_IBACKEND_H_