Request which serves an I/O by calling the synchronous routine of the file. More...

Inheritance diagram for serving_request:

Collaboration diagram for serving_request:

Public Member Functions
	serving_request (const completion_handler &on_cmpl, file f, void buf, offset_type off, size_type b, request_type t)

const char *	io_type () const
	Identifies the type of I/O implementation. More...

Public Member Functions inherited from request_with_state
void	wait (bool measure_time=true)
	Suspends calling thread until completion of the request. More...

bool	poll ()
	Polls the status of the request. More...

bool	cancel ()
	Cancel a request. More...

Public Member Functions inherited from request
int	nref ()

	request (const completion_handler &on_compl, file file__, void buffer_, offset_type offset_, size_type bytes_, request_type type_)

file *	get_file () const

void *	get_buffer () const

offset_type	get_offset () const

size_type	get_size () const

request_type	get_type () const

void	check_alignment () const

std::ostream &	print (std::ostream &out) const
	Dumps properties of a request. More...

void	error_occured (const char *msg)
	Inform the request object that an error occurred during the I/O execution. More...

void	error_occured (const std::string &msg)
	Inform the request object that an error occurred during the I/O execution. More...

void	check_errors () throw (stxxl::io_error)
	Rises an exception if there were error with the I/O. More...

Protected Member Functions
void	serve ()

void	completed ()

Protected Member Functions inherited from request_with_state
	request_with_state (const completion_handler &on_cmpl, file f, void buf, offset_type off, size_type b, request_type t)

Protected Member Functions inherited from request
void	check_nref (bool after=false)

Protected Member Functions inherited from request_with_waiters
bool	add_waiter (onoff_switch *sw)

void	delete_waiter (onoff_switch *sw)

void	notify_waiters ()

Additional Inherited Members
Public Types inherited from request_interface
enum	request_type { READ, WRITE }

typedef stxxl::external_size_type	offset_type

typedef stxxl::internal_size_type	size_type

Protected Types inherited from request_with_state
enum	request_state { OP = 0, DONE = 1, READY2DIE = 2 }

Protected Attributes inherited from request_with_state
state< request_state >	_state

Protected Attributes inherited from request
completion_handler	on_complete

int	ref_cnt

compat_unique_ptr < stxxl::io_error >::result	error

mutex	ref_cnt_mutex

file *	file_

void *	buffer

offset_type	offset

size_type	bytes

request_type	type

Detailed Description

Request which serves an I/O by calling the synchronous routine of the file.

Member Function Documentation

const char * serving_request::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

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