ACE_POSIX_Asynch_Result Class Reference

#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 () const
	Number of bytes transferred by the operation.
const void *	act () const
	ACT associated with the operation.
int	success () const
	Did the operation succeed?
const void *	completion_key () const
u_long	error () const
	Error value if the operation fails.
ACE_HANDLE	event () const
	This returns ACE_INVALID_HANDLE on POSIX4 platforms.
u_long	offset () const
u_long	offset_high () const
int	priority () const
	Priority of the operation.
int	signal_number () const
int	post_completion (ACE_Proactor_Impl *proactor)
	Post this to the Proactor.
virtual	~ACE_POSIX_Asynch_Result ()
	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 ()
Public Member Functions inherited from ACE_Asynch_Result_Impl
virtual	~ACE_Asynch_Result_Impl ()
virtual void	complete (size_t bytes_transferred, int success, const void *completion_key, u_long error=0)=0
	This is called when the asynchronous operation completes.

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 Member Functions inherited from ACE_Asynch_Result_Impl
	ACE_Asynch_Result_Impl ()
	Do-nothing constructor.

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::~ACE_POSIX_Asynch_Result ( )

virtual

Destructor.

ACE_POSIX_Asynch_Result()

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

act()

const void * ACE_POSIX_Asynch_Result::act ( ) const

virtual

ACT associated with the operation.

Implements ACE_Asynch_Result_Impl.

bytes_transferred()

size_t ACE_POSIX_Asynch_Result::bytes_transferred ( ) const

virtual

Number of bytes transferred by the operation.

Implements ACE_Asynch_Result_Impl.

completion_key()

const void * ACE_POSIX_Asynch_Result::completion_key ( ) 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.

error()

u_long ACE_POSIX_Asynch_Result::error ( ) const

virtual

Error value if the operation fails.

Implements ACE_Asynch_Result_Impl.

event()

ACE_HANDLE ACE_POSIX_Asynch_Result::event ( ) const

virtual

This returns ACE_INVALID_HANDLE on POSIX4 platforms.

Implements ACE_Asynch_Result_Impl.

offset()

u_long ACE_POSIX_Asynch_Result::offset ( ) 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.

offset_high()

u_long ACE_POSIX_Asynch_Result::offset_high ( ) const

virtual

Implements ACE_Asynch_Result_Impl.

post_completion()

int ACE_POSIX_Asynch_Result::post_completion ( ACE_Proactor_Impl * proactor )

virtual

Post this to the Proactor.

Implements ACE_Asynch_Result_Impl.

priority()

int ACE_POSIX_Asynch_Result::priority ( ) const

virtual

Priority of the operation.

Implements ACE_Asynch_Result_Impl.

set_bytes_transferred()

void ACE_POSIX_Asynch_Result::set_bytes_transferred

(

size_t

nbytes

)

Simulate value to use in the post_completion ()

set_error()

void ACE_POSIX_Asynch_Result::set_error

(

u_long

errcode

)

Simulate error value to use in the post_completion ()

signal_number()

int ACE_POSIX_Asynch_Result::signal_number ( ) 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.

success()

int ACE_POSIX_Asynch_Result::success ( ) const

virtual

Did the operation succeed?

Implements ACE_Asynch_Result_Impl.

Member Data Documentation

act_

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.

bytes_transferred_

size_t ACE_POSIX_Asynch_Result::bytes_transferred_

protected

Bytes transferred by this operation.

completion_key_

const void* ACE_POSIX_Asynch_Result::completion_key_

protected

ACT associated with handle.

error_

u_long ACE_POSIX_Asynch_Result::error_

protected

Error if operation failed.

handler_proxy_

ACE_Handler::Proxy_Ptr ACE_POSIX_Asynch_Result::handler_proxy_

protected

Handler that will be called back.

success_

int ACE_POSIX_Asynch_Result::success_

protected

Success indicator.

---

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

• POSIX_Asynch_IO.h
• POSIX_Asynch_IO.cpp