Request with basic properties like file and offset. More...

#include <request.h>

Inheritance diagram for request:

Collaboration diagram for request:

Public Member Functions
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.
void	error_occured (const char *msg)
	Inform the request object that an error occurred during the I/O execution.
void	error_occured (const std::string &msg)
	Inform the request object that an error occurred during the I/O execution.
void	check_errors () throw (stxxl::io_error)
	Rises an exception if there were error with the I/O.
Public Member Functions inherited from request_interface
virtual bool	add_waiter (onoff_switch *sw)=0
virtual void	delete_waiter (onoff_switch *sw)=0
virtual void	serve ()=0
virtual void	wait (bool measure_time=true)=0
	Suspends calling thread until completion of the request.
virtual bool	cancel ()=0
	Cancel a request.
virtual bool	poll ()=0
	Polls the status of the request.
virtual const char *	io_type () const =0
	Identifies the type of I/O implementation.

Protected Member Functions
void	completed ()
void	check_nref (bool after=false)
Protected Member Functions inherited from request_interface
virtual void	notify_waiters ()=0

Protected Attributes
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

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

Detailed Description

Request with basic properties like file and offset.

Member Function Documentation

void request::check_errors ( ) throw (stxxl::io_error)

inline

Rises an exception if there were error with the I/O.

void request::error_occured ( const char * msg )

inline

Inform the request object that an error occurred during the I/O execution.

void request::error_occured ( const std::string & msg )

inline

Inform the request object that an error occurred during the I/O execution.

std::ostream & request::print ( std::ostream & out ) const

virtual

Dumps properties of a request.

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