Detailed Description

Request that is aware of threads waiting for it to complete.

Definition at line 30 of file request_with_waiters.h.

Inheritance diagram for stxxl::request_with_waiters:

Collaboration diagram for stxxl::request_with_waiters:

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

Public Member Functions inherited from stxxl::request
	request (const completion_handler &on_compl, file file, void buffer, offset_type offset, size_type bytes, request_type type)

virtual	~request () noexcept(false)

void	check_alignment () const

void	check_errors ()
	Rises an exception if there were error with the I/O. 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 *	get_buffer () const

file *	get_file () const

offset_type	get_offset () const

size_type	get_size () const

request_type	get_type () const

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

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

Public Member Functions inherited from stxxl::request_interface
virtual	~request_interface () noexcept(false)

virtual bool	cancel ()=0
	Cancel a request. More...

virtual bool	poll ()=0
	Polls the status of the request. More...

virtual void	wait (bool measure_time=true)=0
	Suspends calling thread until completion of the request. More...

Public Member Functions inherited from stxxl::atomic_counted_object
	atomic_counted_object ()
	new objects have zero reference count More...

	atomic_counted_object (const atomic_counted_object &)
	coping still creates a new object with zero reference count More...

	~atomic_counted_object ()

bool	dec_reference () const
	Call whenever resetting (i.e. overwriting) a pointer to the object. IMPORTANT: In case of self-assignment, call AFTER inc_reference(). More...

unsigned_type	get_reference_count () const
	Return the number of references to this object (for debugging) More...

void	inc_reference () const
	Call whenever setting a pointer to the object. More...

atomic_counted_object &	operator= (const atomic_counted_object &)
	assignment operator, leaves pointers unchanged More...

bool	unique () const
	Test if the counted_object is referenced by only one counting_ptr. More...

Protected Member Functions
bool	add_waiter (onoff_switch *sw)

void	delete_waiter (onoff_switch *sw)

void	notify_waiters ()

size_t	num_waiters ()
	returns number of waiters More...

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

Protected Member Functions inherited from stxxl::request_interface
virtual void	completed (bool canceled)=0

Private Attributes
std::set< onoff_switch * >	m_waiters

mutex	m_waiters_mutex

Additional Inherited Members
Public Types inherited from stxxl::request_interface
typedef stxxl::external_size_type	offset_type

enum	request_type { READ, WRITE }

typedef stxxl::internal_size_type	size_type

Protected Attributes inherited from stxxl::request
void *	m_buffer

size_type	m_bytes

compat_unique_ptr < stxxl::io_error >::result	m_error

file *	m_file

offset_type	m_offset

completion_handler	m_on_complete

request_type	m_type

Constructor & Destructor Documentation

stxxl::request_with_waiters::request_with_waiters	(	const completion_handler &	on_cmpl,
		file *	f,
		void *	buf,
		offset_type	off,
		size_type	b,
		request_type	t
	)

inline

Definition at line 44 of file request_with_waiters.h.

Member Function Documentation

bool stxxl::request_with_waiters::add_waiter ( onoff_switch * sw )

protectedvirtual

Implements stxxl::request_interface.

Definition at line 24 of file request_with_waiters.cpp.

void stxxl::request_with_waiters::delete_waiter ( onoff_switch * sw )

protectedvirtual

Implements stxxl::request_interface.

Definition at line 42 of file request_with_waiters.cpp.

void stxxl::request_with_waiters::notify_waiters ( )

protectedvirtual

Implements stxxl::request_interface.

Definition at line 48 of file request_with_waiters.cpp.

References _STXXL_FORCE_SEQUENTIAL, and stxxl::for_each().

size_t stxxl::request_with_waiters::num_waiters ( )

protected

returns number of waiters

Definition at line 57 of file request_with_waiters.cpp.

Member Data Documentation

std::set<onoff_switch*> stxxl::request_with_waiters::m_waiters

private

Definition at line 33 of file request_with_waiters.h.

mutex stxxl::request_with_waiters::m_waiters_mutex

private

Definition at line 32 of file request_with_waiters.h.

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

include/stxxl/bits/io/request_with_waiters.h
lib/io/request_with_waiters.cpp

Detailed Description

Public Member Functions

Protected Member Functions

Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation