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ost::FixedBuffer

NAME

ost::FixedBuffer −

A buffer class that holds a known capacity of fixed sized objects defined during creation.

SYNOPSIS

#include <buffer.h>

Inherits ost::Buffer.

Public Member Functions

FixedBuffer (size_t capacity, size_t objsize)
Create a buffer of known capacity for objects of a specified size.

FixedBuffer
(const FixedBuffer &fb)
Create a copy of an existing fixed size buffer and duplicate it’s contents.

virtual ~FixedBuffer ()
Destroy the fixed buffer and free the memory used to store objects.

FixedBuffer
& operator= (const FixedBuffer &fb)
bool isValid (void)

Protected Member Functions

size_t onPeek (void *buf)
Return the first object in the buffer.

size_t onWait (void *buf)
Wait for and return a fixed object in the buffer.

size_t onPost (void *buf)
Post an object of the appropriate size into the buffer.

Detailed Description

A buffer class that holds a known capacity of fixed sized objects defined during creation.

Author:

David Sugar <dyfet AT ostel DOT com> producer/consumer buffer for fixed size objects.

Constructor & Destructor Documentation

ost::FixedBuffer::FixedBuffer (size_t capacity, size_t objsize)
Create a buffer of known capacity for objects of a specified size. Parameters:

capacity of the buffer.
objsize
for each object held in the buffer.

ost::FixedBuffer::FixedBuffer (const FixedBuffer & fb)
Create a copy of an existing fixed size buffer and duplicate it’s contents. Parameters:

fb existing FixedBuffer object.

virtual ost::FixedBuffer::~FixedBuffer () [virtual]
Destroy the fixed buffer and free the memory used to store objects.

Member Function Documentation

bool ost::FixedBuffer::isValid (void) [virtual]
Reimplemented from ost::Buffer.

size_t ost::FixedBuffer::onPeek (void * buf) [protected, virtual]
Return the first object in the buffer. Returns:

predefined size of this buffers objects.

Parameters:

buf pointer to copy contents of head of buffer to.

Implements ost::Buffer.

size_t ost::FixedBuffer::onPost (void * buf) [protected, virtual]
Post an object of the appropriate size into the buffer. Returns:

predefined size of this buffers objects.

Parameters:

buf pointer to data to copy into the buffer.

Implements ost::Buffer.

size_t ost::FixedBuffer::onWait (void * buf) [protected, virtual]
Wait for and return a fixed object in the buffer. Returns:

predefined size of this buffers objects.

Parameters:

buf pointer to hold object returned from the buffer.

Implements ost::Buffer.

FixedBuffer& ost::FixedBuffer::operator= (const FixedBuffer & fb)

Author

Generated automatically by Doxygen for GNU CommonC++ from the source code.

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