gr::blocks::file_source Class Reference

Read stream from file. More...

#include <file_source.h>

Inheritance diagram for gr::blocks::file_source:

List of all members.

Public Types
typedef boost::shared_ptr < file_source >	sptr
Public Member Functions
virtual bool	seek (long seek_point, int whence)=0
	seek file to seek_point relative to whence
virtual void	open (const char *filename, bool repeat)=0
	Opens a new file.
virtual void	close ()=0
	Close the file handle.
Static Public Member Functions
static sptr	make (size_t itemsize, const char *filename, bool repeat=false)
	Create a file source.

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Detailed Description

Read stream from file.

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Member Typedef Documentation

typedef boost::shared_ptr<file_source> gr::blocks::file_source::sptr

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Member Function Documentation

virtual void gr::blocks::file_source::close

(

)

[pure virtual]

Close the file handle.

Implemented in gr::blocks::file_source_impl.

static sptr gr::blocks::file_source::make	(	size_t	itemsize,
		const char *	filename,
		bool	repeat = false
	)		[static]

Create a file source.

Opens filename as a source of items into a flowgraph. The data is expected to be in binary format, item after item. The itemsize of the block determines the conversion from bits to items.

If repeat is turned on, the file will repeat the file after it's reached the end.

Parameters:

itemsize	the size of each item in the file, in bytes
filename	name of the file to source from
repeat	repeat file from start

virtual void gr::blocks::file_source::open	(	const char *	filename,
		bool	repeat
	)		[pure virtual]

Opens a new file.

Parameters:

filename	name of the file to source from
repeat	repeat file from start

Implemented in gr::blocks::file_source_impl.

virtual bool gr::blocks::file_source::seek	(	long	seek_point,
		int	whence
	)		[pure virtual]

seek file to seek_point relative to whence

Parameters:

seek_point	sample offset in file
whence	one of SEEK_SET, SEEK_CUR, SEEK_END (man fseek)

Implemented in gr::blocks::file_source_impl.

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

• file_source.h