stxxl::wincall_file Class Reference

Detailed Description

Implementation of file based on Windows native I/O calls.

Definition at line 40 of file wincall_file.h.

Inheritance diagram for stxxl::wincall_file:

Collaboration diagram for stxxl::wincall_file:

Public Member Functions
	wincall_file (const std::string &filename, int mode, int queue_id=DEFAULT_QUEUE, int allocator_id=NO_ALLOCATOR)
	Constructs file object. More...
const char *	io_type () const
	Identifies the type of I/O implementation. More...
void	serve (const request *req) throw (io_error)
Public Member Functions inherited from stxxl::wfs_file_base
	~wfs_file_base ()
void	close_remove ()
	close and remove file More...
void	lock ()
	Locks file for reading and writing (acquires a lock in the file system). More...
void	set_size (offset_type newsize)
offset_type	size ()
	Returns size of the file. More...
Public Member Functions inherited from stxxl::file
virtual	~file ()
void	add_request_ref ()
virtual request_ptr	aread (void *buffer, offset_type pos, size_type bytes, const completion_handler &on_cmpl)=0
	Schedules an asynchronous read request to the file. More...
virtual request_ptr	awrite (void *buffer, offset_type pos, size_type bytes, const completion_handler &on_cmpl)=0
	Schedules an asynchronous write request to the file. More...
void	delete_request_ref ()
virtual void	discard (offset_type offset, offset_type size)
	Discard a region of the file (mark it unused). Some specialized file types may need to know freed regions. More...
virtual void	export_files (offset_type offset, offset_type length, std::string prefix)
virtual int	get_physical_device_id () const
int	get_request_nref ()
virtual void	set_size (offset_type newsize)=0
	Changes the size of the file. More...
Public Member Functions inherited from stxxl::disk_queued_file
	disk_queued_file (int queue_id, int allocator_id)
request_ptr	aread (void *buffer, offset_type pos, size_type bytes, const completion_handler &on_cmpl)
request_ptr	awrite (void *buffer, offset_type pos, size_type bytes, const completion_handler &on_cmpl)
virtual int	get_allocator_id () const
	Returns the file's allocator. More...
virtual int	get_queue_id () const
	Returns the identifier of the file's queue. More...

Additional Inherited Members
Public Types inherited from stxxl::file
typedef request::offset_type	offset_type
	the offset of a request, also the size of the file More...
enum	open_mode {   RDONLY = 1, WRONLY = 2, RDWR = 4, CREAT = 8,   DIRECT = 16, TRUNC = 32, SYNC = 64, NO_LOCK = 128,   REQUIRE_DIRECT = 256 }
	Definition of acceptable file open modes. More...
typedef request::size_type	size_type
	the size of a request More...
Static Public Member Functions inherited from stxxl::file
static int	unlink (const char *path)
	unlink path from filesystem More...
static int	truncate (const char *path, external_size_type length)
	truncate a path to given length. Use this only if you dont have a fileio-specific object, which provides truncate(). More...
Static Public Attributes inherited from stxxl::file
static const int	DEFAULT_QUEUE = -1
static const int	NO_ALLOCATOR = -1
static const int	NO_QUEUE = -2
Protected Types inherited from stxxl::wfs_file_base
typedef void *	HANDLE
Protected Member Functions inherited from stxxl::wfs_file_base
	wfs_file_base (const std::string &filename, int mode)
offset_type	_size ()
void	close ()
Protected Member Functions inherited from stxxl::file
	file ()
	Initializes file object. More...
Protected Attributes inherited from stxxl::wfs_file_base
offset_type	bytes_per_sector
mutex	fd_mutex
HANDLE	file_des
const std::string	filename
bool	locked
int	mode_

Constructor & Destructor Documentation

stxxl::wincall_file::wincall_file ( const std::string &  filename, int  mode, int  queue_id = DEFAULT_QUEUE, int  allocator_id = NO_ALLOCATOR  )

inline

Constructs file object.

Parameters

filename	path of file
mode	open mode, see stxxl::file::open_modes
queue_id	disk queue identifier
allocator_id	linked disk_allocator

Definition at line 48 of file wincall_file.h.

Member Function Documentation

const char* stxxl::wincall_file::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::wfs_file_base.

void stxxl::wincall_file::serve ( const request *  req ) throw ( io_error )

virtual

Implements stxxl::file.

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

• include/stxxl/bits/io/wincall_file.h