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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1992-2001 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _MULTIMEDIA_AUDIODEVICECTL_H
#define _MULTIMEDIA_AUDIODEVICECTL_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <AudioDevice.h>
#ifdef __cplusplus
extern "C" {
#endif
// This is the audio control device class
//
// The audio control device cannot be read or written.
class AudioDevicectl : public AudioDevice {
private:
AudioDevicectl operator=(AudioDevicectl); // Assignment is illegal
protected:
public:
// Constructor with path
AudioDevicectl(
const char *path = ""); // default device
virtual ~AudioDevicectl() {} // Destructor
// class AudioDevice methods specialized here
virtual AudioError tryopen(
const char *, int); // open with a given pathname
// class Audio methods specialized here
virtual AudioHdr GetReadHeader(); // Get header
// Device control and status functions
// Turn SIGPOLL on/off
virtual AudioError SetSignal(
Boolean on);
// No-op methods
virtual AudioError Create()
{ return (RaiseError(AUDIO_ERR_NOEFFECT)); }
virtual AudioError ReadData(void*, size_t&, Double&)
{ return (RaiseError(AUDIO_ERR_NOEFFECT)); }
virtual AudioError WriteData(void*, size_t&, Double&)
{ return (RaiseError(AUDIO_ERR_NOEFFECT)); }
virtual AudioError SetHeader(const AudioHdr&)
{ return (RaiseError(AUDIO_ERR_NOEFFECT)); }
virtual AudioError SetReadHeader(AudioHdr&)
{ return (RaiseError(AUDIO_ERR_NOEFFECT)); }
virtual AudioError SetWriteHeader(AudioHdr&)
{ return (RaiseError(AUDIO_ERR_NOEFFECT)); }
virtual AudioError WriteEof()
{ return (RaiseError(AUDIO_ERR_NOEFFECT)); }
virtual AudioError Flush(const FileAccess)
{ return (RaiseError(AUDIO_ERR_NOEFFECT)); }
virtual AudioError DrainOutput()
{ return (RaiseError(AUDIO_ERR_NOEFFECT)); }
virtual Boolean isDevice() const { return (TRUE); } // XXX ??
virtual Boolean isDevicectl() const { return (TRUE); }
};
#ifdef __cplusplus
}
#endif
#endif /* !_MULTIMEDIA_AUDIODEVICECTL_H */
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