ACE_Asynch_Connector< HANDLER > Class Template Reference

This class is an example of the Connector pattern. This class will establish new connections and create new HANDLER objects to handle the new connections. More...

#include <Asynch_Connector.h>

Inheritance diagram for ACE_Asynch_Connector< HANDLER >:

Collaboration diagram for ACE_Asynch_Connector< HANDLER >:

List of all members.

Public Member Functions
	ACE_Asynch_Connector (void)
	A do nothing constructor.
virtual	~ACE_Asynch_Connector (void)
	Virtual destruction.
virtual int	open (bool pass_addresses=false, ACE_Proactor *proactor=0, bool validate_new_connection=true)
virtual int	connect (const ACE_INET_Addr &remote_sap, const ACE_INET_Addr &local_sap=(const ACE_INET_Addr &) ACE_Addr::sap_any, int reuse_addr=1, const void *act=0)
	This initiates a new asynchronous connect.
virtual int	cancel (void)
virtual int	validate_connection (const ACE_Asynch_Connect::Result &result, const ACE_INET_Addr &remote, const ACE_INET_Addr &local)
virtual bool	pass_addresses (void) const
virtual void	pass_addresses (bool new_value)
virtual bool	validate_new_connection (void) const
virtual void	validate_new_connection (bool new_value)
Protected Member Functions
virtual void	handle_connect (const ACE_Asynch_Connect::Result &result)
	This is called when an outstanding accept completes.
void	parse_address (const ACE_Asynch_Connect::Result &result, ACE_INET_Addr &remote_address, ACE_INET_Addr &local_address)
	This parses the address from read buffer.
ACE_Asynch_Connect &	asynch_connect (void)
	Return the asynch Connect object.
virtual HANDLER *	make_handler (void)
Private Attributes
ACE_Asynch_Connect	asynch_connect_
	Asynch_Connect used to make life easier :-)
bool	pass_addresses_
	Flag that indicates if parsing of addresses is necessary.
bool	validate_new_connection_
	Flag that indicates if address validation is required.

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Detailed Description

template<class HANDLER>
class ACE_Asynch_Connector< HANDLER >

This class is an example of the Connector pattern. This class will establish new connections and create new HANDLER objects to handle the new connections.

Unlike the ACE_Connector, however, this class is designed to be used asynchronously with the ACE Proactor framework.

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Constructor & Destructor Documentation

template<class HANDLER >

ACE_Asynch_Connector< HANDLER >::ACE_Asynch_Connector

(

void

)

A do nothing constructor.

template<class HANDLER >

ACE_Asynch_Connector< HANDLER >::~ACE_Asynch_Connector

(

void

)

[virtual]

Virtual destruction.

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Member Function Documentation

template<class HANDLER >

ACE_Asynch_Connect & ACE_Asynch_Connector< HANDLER >::asynch_connect

(

void

)

[protected]

Return the asynch Connect object.

template<class HANDLER >

int ACE_Asynch_Connector< HANDLER >::cancel

(

void

)

[virtual]

This cancels all pending accepts operations that were issued by the calling thread.

Note:

On Windows, this method does not cancel connect operations issued by other threads.

On POSIX, delegates cancelation to ACE_POSIX_Asynch_Connect.

template<class HANDLER >

int ACE_Asynch_Connector< HANDLER >::connect	(	const ACE_INET_Addr &	remote_sap,
		const ACE_INET_Addr &	local_sap = (const ACE_INET_Addr &)ACE_Addr::sap_any,
		int	reuse_addr = 1,
		const void *	act = 0
	)		[virtual]

This initiates a new asynchronous connect.

template<class HANDLER >

void ACE_Asynch_Connector< HANDLER >::handle_connect

(

const ACE_Asynch_Connect::Result &

result

)

[protected, virtual]

This is called when an outstanding accept completes.

Reimplemented from ACE_Handler.

template<class HANDLER >

HANDLER * ACE_Asynch_Connector< HANDLER >::make_handler

(

void

)

[protected, virtual]

This is the template method used to create new handler. Subclasses must overwrite this method if a new handler creation strategy is required.

template<class HANDLER >

int ACE_Asynch_Connector< HANDLER >::open	(	bool	pass_addresses = false,
		ACE_Proactor *	proactor = 0,
		bool	validate_new_connection = true
	)		[virtual]

This opens asynch connector

template<class HANDLER >

void ACE_Asynch_Connector< HANDLER >::parse_address	(	const ACE_Asynch_Connect::Result &	result,
		ACE_INET_Addr &	remote_address,
		ACE_INET_Addr &	local_address
	)		[protected]

This parses the address from read buffer.

template<class HANDLER >

bool ACE_Asynch_Connector< HANDLER >::pass_addresses

(

void

)

const [virtual]

Set and get flag that indicates if parsing and passing of addresses to the service_handler is necessary.

template<class HANDLER >

void ACE_Asynch_Connector< HANDLER >::pass_addresses

(

bool

new_value

)

[virtual]

template<class HANDLER >

int ACE_Asynch_Connector< HANDLER >::validate_connection	(	const ACE_Asynch_Connect::Result &	result,
		const ACE_INET_Addr &	remote,
		const ACE_INET_Addr &	local
	)		[virtual]

Template method to validate peer before service is opened. This method is called when the connection attempt completes, whether it succeeded or failed, if the validate_connection argument to open() was non-zero or the validate_new_connection() method is called to turn this feature on. The default implementation returns 0. Users can (and probably should) reimplement this method to learn about the success or failure of the connection attempt. If the connection completed successfully, this method can be used to perform validation of the peer using it's address, running an authentication procedure (such as SSL) or anything else necessary or desireable. The return value from this method determines whether or not ACE will continue opening the service or abort the connection.

Parameters:

result	Result of the connection acceptance. Use result.success() to determine success or failure of the connection attempt.
remote	Peer's address. If the connection failed, this object is undefined.
local	Local address connection was completed from. If the connection failed, this object is undefined.

Return values:

-1	ACE_Asynch_Connector will close the connection, and the service will not be opened.
0	Service opening will proceeed.

Returns:

Return value is ignored if the connection attempt failed.

template<class HANDLER >

bool ACE_Asynch_Connector< HANDLER >::validate_new_connection

(

void

)

const [virtual]

Set and get flag that indicates if address validation is required.

template<class HANDLER >

void ACE_Asynch_Connector< HANDLER >::validate_new_connection

(

bool

new_value

)

[virtual]

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Member Data Documentation

template<class HANDLER >

ACE_Asynch_Connect ACE_Asynch_Connector< HANDLER >::asynch_connect_ [private]

Asynch_Connect used to make life easier :-)

template<class HANDLER >

bool ACE_Asynch_Connector< HANDLER >::pass_addresses_ [private]

Flag that indicates if parsing of addresses is necessary.

template<class HANDLER >

bool ACE_Asynch_Connector< HANDLER >::validate_new_connection_ [private]

Flag that indicates if address validation is required.

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

• Asynch_Connector.h
• Asynch_Connector.cpp