stxxl::ufs_file_base Class Reference

Base for UNIX file system implementations. More...

#include <ufs_file_base.h>

Inheritance diagram for stxxl::ufs_file_base:

Collaboration diagram for stxxl::ufs_file_base:

List of all members.

Public Member Functions
	~ufs_file_base ()
offset_type	size ()
	Returns size of the file.
void	set_size (offset_type newsize)
	Changes the size of the file.
void	lock ()
	Locks file for reading and writing (acquires a lock in the file system)
const char *	io_type () const
	Identifies the type of I/O implementation.
void	remove ()
void	unlink ()
Protected Member Functions
	ufs_file_base (const std::string &filename, int mode)
offset_type	_size ()
void	close ()
Protected Attributes
mutex	fd_mutex
int	file_des
int	mode_
const std::string	filename

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Detailed Description

Base for UNIX file system implementations.

Definition at line 30 of file ufs_file_base.h.

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Constructor & Destructor Documentation

stxxl::ufs_file_base::ufs_file_base	(	const std::string &	filename,
		int	mode
	)		[protected]

Definition at line 36 of file ufs_file_base.cpp.

References stxxl::file::CREAT, stxxl::file::DIRECT, file_des, lock(), stxxl::file::NO_LOCK, O_DIRECT, O_DSYNC, O_RSYNC, O_SYNC, stxxl::file::RDONLY, stxxl::file::RDWR, STXXL_THROW2, stxxl::file::SYNC, stxxl::file::TRUNC, and stxxl::file::WRONLY.

stxxl::ufs_file_base::~ufs_file_base

(

)

Definition at line 100 of file ufs_file_base.cpp.

References close().

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Member Function Documentation

file::offset_type stxxl::ufs_file_base::_size

(

)

[protected]

Definition at line 134 of file ufs_file_base.cpp.

References file_des, and stxxl_check_ge_0.

Referenced by set_size(), and size().

void stxxl::ufs_file_base::close

(

)

[protected]

Definition at line 105 of file ufs_file_base.cpp.

References fd_mutex, file_des, and stxxl_function_error.

Referenced by remove(), and ~ufs_file_base().

const char * stxxl::ufs_file_base::io_type

(

)

const [virtual]

Identifies the type of I/O implementation.

Returns:

pointer to null terminated string of characters, containing the name of I/O implementation

Reimplemented from stxxl::file.

Reimplemented in stxxl::sim_disk_file, stxxl::mmap_file, and stxxl::syscall_file.

Definition at line 31 of file ufs_file_base.cpp.

void stxxl::ufs_file_base::lock

(

)

[virtual]

Locks file for reading and writing (acquires a lock in the file system)

Implements stxxl::file.

Definition at line 118 of file ufs_file_base.cpp.

References fd_mutex, file_des, filename, mode_, stxxl::file::RDONLY, and STXXL_THROW2.

Referenced by stxxl::create_file(), and ufs_file_base().

void stxxl::ufs_file_base::remove

(

)

[virtual]

Reimplemented from stxxl::file.

Definition at line 184 of file ufs_file_base.cpp.

References close(), and filename.

Referenced by unlink().

void stxxl::ufs_file_base::set_size

(

offset_type

newsize

)

[virtual]

Changes the size of the file.

Parameters:

newsize

new file size

Implements stxxl::file.

Reimplemented in stxxl::sim_disk_file.

Definition at line 152 of file ufs_file_base.cpp.

References _size(), fd_mutex, file_des, mode_, stxxl::file::RDONLY, and stxxl_check_ge_0.

Referenced by main().

file::offset_type stxxl::ufs_file_base::size

(

)

[virtual]

Returns size of the file.

Returns:

file size in bytes

Implements stxxl::file.

Definition at line 146 of file ufs_file_base.cpp.

References _size(), and fd_mutex.

Referenced by main().

void stxxl::ufs_file_base::unlink

(

)

Definition at line 190 of file ufs_file_base.cpp.

References filename, and remove().

Referenced by stxxl::create_file().

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Member Data Documentation

mutex stxxl::ufs_file_base::fd_mutex [protected]

Definition at line 33 of file ufs_file_base.h.

Referenced by close(), lock(), set_size(), and size().

int stxxl::ufs_file_base::file_des [protected]

Definition at line 34 of file ufs_file_base.h.

Referenced by _size(), close(), lock(), set_size(), and ufs_file_base().

const std::string stxxl::ufs_file_base::filename [protected]

Definition at line 36 of file ufs_file_base.h.

Referenced by lock(), remove(), and unlink().

int stxxl::ufs_file_base::mode_ [protected]

Definition at line 35 of file ufs_file_base.h.

Referenced by lock(), and set_size().

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

• include/stxxl/bits/io/ufs_file_base.h
• io/ufs_file_base.cpp