Binlog_ifile Class Reference

Binlog input file. More...

#include <binlog_istream.h>

Inheritance diagram for Binlog_ifile:

Public Member Functions
	Basic_binlog_ifile (Binlog_read_error *binlog_read_error)
	Basic_binlog_ifile (const Basic_binlog_ifile &)=delete
Public Member Functions inherited from Basic_binlog_ifile
	Basic_binlog_ifile (Binlog_read_error *binlog_read_error)
	Basic_binlog_ifile (const Basic_binlog_ifile &)=delete
Basic_binlog_ifile &	operator= (const Basic_binlog_ifile &)=delete
	~Basic_binlog_ifile () override
bool	open (const char *file_name)
	Open a binlog file. More...
void	close ()
	Close the binlog file it is reading. More...
ssize_t	read (unsigned char *buffer, size_t length) override
	Read some bytes from the input stream. More...
bool	seek (my_off_t position) override
	Puts the read position to a given offset. More...
my_off_t	position () const
bool	is_open () const
const std::string &	file_name () const
my_off_t	length () override
	Get length of the binlog file. More...
Public Member Functions inherited from Basic_seekable_istream
	~Basic_seekable_istream () override=default
Public Member Functions inherited from Basic_istream
virtual	~Basic_istream ()=default

Protected Member Functions
std::unique_ptr< Basic_seekable_istream >	open_file (const char *file_name) override
	Open the system layer file. More...

Additional Inherited Members
Protected Attributes inherited from Basic_binlog_ifile
Binlog_read_error *	m_error
	It is convenient for caller to share a Binlog_read_error object between streams. More...

Detailed Description

Binlog input file.

It is responsible for opening binlog files generated by the server itself, but not relaylog files.

Member Function Documentation

Basic_binlog_ifile() [1/2]

Basic_binlog_ifile::Basic_binlog_ifile

(

Binlog_read_error *

binlog_read_error

)

Parameters

[in]

binlog_read_error

Basic_binlog_ifile doesn't own an Binlog_read_error. So the caller should provide one to it. When error happens, the error type will be set into 'error'.

Basic_binlog_ifile() [2/2]

Basic_binlog_ifile::Basic_binlog_ifile ( const Basic_binlog_ifile &  )

delete

open_file()

std::unique_ptr< Basic_seekable_istream > Binlog_ifile::open_file ( const char *  file_name )

overrideprotectedvirtual

Open the system layer file.

It is the entry of the stream pipeline. Implementation is delegated to sub-classes. Sub-classes opens system layer files in different way.

Parameters

[in]

file_name

name of the binlog file which will be opened.

Implements Basic_binlog_ifile.

---

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

• sql/binlog_istream.h
• sql/binlog_istream.cc