BroadcastStream.h

/*********************************************************************** Author: Zihan Chen (vczh) Licensed under https://github.com/vczh-libraries/License ***********************************************************************/

#ifndef VCZH_STREAM_BROADCASTSTREAM

#define VCZH_STREAM_BROADCASTSTREAM

#include "Interfaces.h"

namespace

{

namespace

stream

{

/// <summary>A <b>writable</b> stream that copy the written content to multiple output streams.</summary>

/// <remarks>

/// When writing happens, the boreadcast stream will only performance one write attempt to each output stream.

/// </remarks>

class

BroadcastStream

public

Object

public

virtual

IStream

{

typedef

collections

List

IStream

StreamList

;

protected

bool

closed

;

pos_t

position

;

StreamList

streams

;

public

/// <summary>Create a boradcast stream.</summary>

BroadcastStream

();

BroadcastStream

();

/// <summary>

/// Get the list of output streams.

/// You can change this list to subscribe or unsubscribe.

/// </summary>

/// <returns>The list of output streams.</returns>

StreamList

Targets

();

bool

CanRead

()

const

;

bool

CanWrite

()

const

;

bool

CanSeek

()

const

;

bool

CanPeek

()

const

;

bool

IsLimited

()

const

;

bool

IsAvailable

()

const

;

void

();

pos_t

Position

()

const

;

pos_t

Size

()

const

;

void

Seek

(

pos_t

_size

);

void

SeekFromBegin

(

pos_t

_size

);

void

SeekFromEnd

(

pos_t

_size

);

vint

Read

(

void

_buffer

vint

_size

);

vint

Write

(

void

_buffer

vint

_size

);

vint

Peek

(

void

_buffer

vint

_size

); }; } }

#endif