gr_vmcircbuf_factory Class Reference

abstract factory for creating circular buffers More...

#include <gr_vmcircbuf.h>

Inheritance diagram for gr_vmcircbuf_factory:

List of all members.

Public Member Functions
virtual const char *	name () const =0
	return name of this factory
virtual int	granularity ()=0
	return granularity of mapping, typically equal to page size
virtual gr_vmcircbuf *	make (int size)=0
	return a gr_vmcircbuf, or 0 if unable.

Protected Member Functions
	gr_vmcircbuf_factory ()
virtual	~gr_vmcircbuf_factory ()

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Detailed Description

abstract factory for creating circular buffers

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Constructor & Destructor Documentation

gr_vmcircbuf_factory::gr_vmcircbuf_factory ( )

inlineprotected

virtual gr_vmcircbuf_factory::~gr_vmcircbuf_factory ( )

protectedvirtual

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Member Function Documentation

virtual int gr_vmcircbuf_factory::granularity ( )

pure virtual

return granularity of mapping, typically equal to page size

Implemented in gr_vmcircbuf_createfilemapping_factory, gr_vmcircbuf_mmap_shm_open_factory, gr_vmcircbuf_mmap_tmpfile_factory, and gr_vmcircbuf_sysv_shm_factory.

Referenced by gr_vmcircbuf_sysconfig::granularity().

virtual gr_vmcircbuf* gr_vmcircbuf_factory::make ( int  size )

pure virtual

return a gr_vmcircbuf, or 0 if unable.

Call this to create a doubly mapped circular buffer.

Implemented in gr_vmcircbuf_createfilemapping_factory, gr_vmcircbuf_mmap_shm_open_factory, gr_vmcircbuf_mmap_tmpfile_factory, and gr_vmcircbuf_sysv_shm_factory.

Referenced by gr_vmcircbuf_sysconfig::make().

virtual const char* gr_vmcircbuf_factory::name ( ) const

pure virtual

return name of this factory

Implemented in gr_vmcircbuf_createfilemapping_factory, gr_vmcircbuf_mmap_shm_open_factory, gr_vmcircbuf_mmap_tmpfile_factory, and gr_vmcircbuf_sysv_shm_factory.

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

• gr_vmcircbuf.h