#include <POSIX_Asynch_IO.h>

Inheritance diagram for ACE_POSIX_Asynch_Result:

Collaboration diagram for ACE_POSIX_Asynch_Result:

Public Member Functions
size_t	bytes_transferred (void) const
	Number of bytes transferred by the operation.
const void *	act (void) const
	ACT associated with the operation.
int	success (void) const
	Did the operation succeed?
const void *	completion_key (void) const
u_long	error (void) const
	Error value if the operation fails.
ACE_HANDLE	event (void) const
	This returns ACE_INVALID_HANDLE on POSIX4 platforms.
u_long	offset (void) const
u_long	offset_high (void) const
int	priority (void) const
	Priority of the operation.
int	signal_number (void) const
int	post_completion (ACE_Proactor_Impl *proactor)
	Post `this` to the Proactor.
virtual	~ACE_POSIX_Asynch_Result (void)
	Destructor.
void	set_error (u_long errcode)
	Simulate error value to use in the post_completion ()
void	set_bytes_transferred (size_t nbytes)
	Simulate value to use in the post_completion ()
Protected Member Functions
	ACE_POSIX_Asynch_Result (const ACE_Handler::Proxy_Ptr &handler_proxy, const void *act, ACE_HANDLE event, u_long offset, u_long offset_high, int priority, int signal_number)
	Constructor. <Event> is not used on POSIX.
Protected Attributes
ACE_Handler::Proxy_Ptr	handler_proxy_
	Handler that will be called back.
const void *	act_
size_t	bytes_transferred_
	Bytes transferred by this operation.
int	success_
	Success indicator.
const void *	completion_key_
	ACT associated with handle.
u_long	error_
	Error if operation failed.

Detailed Description

This class provides concrete implementation for ACE_Asynch_Result for POSIX4 platforms. This class extends aiocb and makes it more useful.

Constructor & Destructor Documentation

ACE_POSIX_Asynch_Result::~ACE_POSIX_Asynch_Result ( void )

virtual

Destructor.

ACE_POSIX_Asynch_Result::ACE_POSIX_Asynch_Result	(	const ACE_Handler::Proxy_Ptr &	handler_proxy,
		const void *	act,
		ACE_HANDLE	event,
		u_long	offset,
		u_long	offset_high,
		int	priority,
		int	signal_number
	)

protected

Constructor. <Event> is not used on POSIX.

Member Function Documentation

const void * ACE_POSIX_Asynch_Result::act ( void ) const

virtual

ACT associated with the operation.

Implements ACE_Asynch_Result_Impl.

size_t ACE_POSIX_Asynch_Result::bytes_transferred ( void ) const

virtual

Number of bytes transferred by the operation.

Implements ACE_Asynch_Result_Impl.

const void * ACE_POSIX_Asynch_Result::completion_key ( void ) const

virtual

This is the ACT associated with the handle on which the Asynch_Operation takes place.

Note:: This is not implemented for POSIX4 platforms.

Implements ACE_Asynch_Result_Impl.

u_long ACE_POSIX_Asynch_Result::error ( void ) const

virtual

Error value if the operation fails.

Implements ACE_Asynch_Result_Impl.

ACE_HANDLE ACE_POSIX_Asynch_Result::event ( void ) const

virtual

This returns ACE_INVALID_HANDLE on POSIX4 platforms.

Implements ACE_Asynch_Result_Impl.

u_long ACE_POSIX_Asynch_Result::offset ( void ) const

virtual

This really make sense only when doing file I/O.

@ On POSIX4-Unix, offset_high should be supported using aiocb64.

Implements ACE_Asynch_Result_Impl.

u_long ACE_POSIX_Asynch_Result::offset_high ( void ) const

virtual

Implements ACE_Asynch_Result_Impl.

int ACE_POSIX_Asynch_Result::post_completion ( ACE_Proactor_Impl * proactor )

virtual

Post this to the Proactor.

Implements ACE_Asynch_Result_Impl.

int ACE_POSIX_Asynch_Result::priority ( void ) const

virtual

Priority of the operation.

Implements ACE_Asynch_Result_Impl.

void ACE_POSIX_Asynch_Result::set_bytes_transferred ( size_t nbytes )

Simulate value to use in the post_completion ()

void ACE_POSIX_Asynch_Result::set_error ( u_long errcode )

Simulate error value to use in the post_completion ()

int ACE_POSIX_Asynch_Result::signal_number ( void ) const

virtual

POSIX4 realtime signal number to be used for the operation. <signal_number> ranges from SIGRTMIN to SIGRTMAX. By default, SIGRTMIN is used to issue <aio_> calls.

Implements ACE_Asynch_Result_Impl.

int ACE_POSIX_Asynch_Result::success ( void ) const

virtual

Did the operation succeed?

Implements ACE_Asynch_Result_Impl.

Member Data Documentation

const void* ACE_POSIX_Asynch_Result::act_

protected

ACT for this operation. We could use <aiocb::aio_sigevent.sigev_value.sival_ptr> for this. But it doesnot provide the constness, so this may be better.

size_t ACE_POSIX_Asynch_Result::bytes_transferred_

protected

Bytes transferred by this operation.

const void* ACE_POSIX_Asynch_Result::completion_key_

protected

ACT associated with handle.

u_long ACE_POSIX_Asynch_Result::error_

protected

Error if operation failed.

ACE_Handler::Proxy_Ptr ACE_POSIX_Asynch_Result::handler_proxy_

protected

Handler that will be called back.