CDDrive::Reader Class Reference

The Reader uses a separate thread to load data into the CDDrive's ring buffer. More...

#include <cd_drive.h>

Collaboration diagram for CDDrive::Reader:

Public Types
enum	Action { Idle , Load , Exit }
	Actions are taken consecutively. Setting an action on the Reader takes effect after its current action. More...

Public Member Functions
	Reader (CDDrive &drive)
	Reader constructor.
	~Reader ()
	Reader destructor.
void	action (const Action action)
	Set the next action for the Reader.
Action	action ()
	Returns the current Reader action in a thread-safe way.
void	track (const int track)
	Seeks to the given track on the disc using 1-based indexing.
void	buffer (const int buffer)
	Sets the index of the buffer in the CDDrive's ring buffer to read samples into.
void	load ()
	Fills the current buffer with audio samples.
void	loop ()
	The execution loop performed by the thread.

Private Attributes
CDDrive &	_drive
	The parent CDDrive.
Action	_action
	The current or next action to be taken by the Reader.
int	_buffer
	The index of the buffer in the CDDrive's ring buffer to read samples into.
cdrom_paranoia_t *	_paranoia
	cdio handle to the sample reader.
std::mutex	_action_lock
	Provides mutually exclusive access to the _action member between the the application thread and the Reader thread.
std::thread	_thread
	The thread used to run loop().

Detailed Description

The Reader uses a separate thread to load data into the CDDrive's ring buffer.

Definition at line 172 of file cd_drive.h.

Member Enumeration Documentation

Action

enum CDDrive::Reader::Action

Actions are taken consecutively. Setting an action on the Reader takes effect after its current action.

Enumerator
Idle
Load
Exit

Definition at line 177 of file cd_drive.h.

Constructor & Destructor Documentation

Reader()

CDDrive::Reader::Reader

(

CDDrive &

drive

)

Reader constructor.

Parameters

[in]

drive

The parent CDDrive.

Definition at line 9 of file cd_drive.cc.

~Reader()

CDDrive::Reader::~Reader

(

)

Reader destructor.

Definition at line 19 of file cd_drive.cc.

Member Function Documentation

action() [1/2]

CDDrive::Reader::Action CDDrive::Reader::action

(

)

Returns the current Reader action in a thread-safe way.

Returns

The current action.

Definition at line 42 of file cd_drive.cc.

action() [2/2]

void CDDrive::Reader::action

(

const Action

action

)

Set the next action for the Reader.

Parameters

[in]

action

The action to take.

Definition at line 26 of file cd_drive.cc.

buffer()

void CDDrive::Reader::buffer

(

const int

buffer

)

Sets the index of the buffer in the CDDrive's ring buffer to read samples into.

Parameters

[in]

buffer

The index of the buffer (0 or 1).

Definition at line 38 of file cd_drive.cc.

load()

void CDDrive::Reader::load

(

)

Fills the current buffer with audio samples.

Definition at line 61 of file cd_drive.cc.

loop()

void CDDrive::Reader::loop

(

)

The execution loop performed by the thread.

Definition at line 77 of file cd_drive.cc.

track()

void CDDrive::Reader::track

(

const int

track

)

Seeks to the given track on the disc using 1-based indexing.

Parameters

[in]

track

The track to seek to .

Definition at line 32 of file cd_drive.cc.

Member Data Documentation

_action

Action CDDrive::Reader::_action

private

The current or next action to be taken by the Reader.

Definition at line 212 of file cd_drive.h.

_action_lock

std::mutex CDDrive::Reader::_action_lock

private

Provides mutually exclusive access to the _action member between the the application thread and the Reader thread.

Definition at line 220 of file cd_drive.h.

_buffer

int CDDrive::Reader::_buffer

private

The index of the buffer in the CDDrive's ring buffer to read samples into.

Definition at line 214 of file cd_drive.h.

_drive

CDDrive& CDDrive::Reader::_drive

private

The parent CDDrive.

Definition at line 210 of file cd_drive.h.

_paranoia

cdrom_paranoia_t* CDDrive::Reader::_paranoia

private

cdio handle to the sample reader.

Definition at line 216 of file cd_drive.h.

_thread

std::thread CDDrive::Reader::_thread

private

The thread used to run loop().

Definition at line 224 of file cd_drive.h.

---

The documentation for this class was generated from the following files:

• src/cd/cd_drive.h
• src/cd/cd_drive.cc