TAO_LF_CH_Event Class Reference

Use the Leader/Follower loop to wait for one specific event in the invocation path. More...

#include <LF_CH_Event.h>

Inheritance diagram for TAO_LF_CH_Event:

Collaboration diagram for TAO_LF_CH_Event:

List of all members.

Public Member Functions
	TAO_LF_CH_Event (void)
	Constructor.
virtual	~TAO_LF_CH_Event (void)
	Destructor.
Private Types
typedef ACE_Hash_Map_Manager_Ex < TAO_LF_Follower *, int, ACE_Hash< void * > , ACE_Equal_To < TAO_LF_Follower * > , TAO_SYNCH_MUTEX >	HASH_MAP
Private Member Functions
virtual void	state_changed_i (int new_state)
	Validate and change the state.
virtual void	set_state (int new_state)
	Set the state irrespective of anything.
virtual int	bind (TAO_LF_Follower *follower)
	Bind a follower.
virtual int	unbind (TAO_LF_Follower *follower)
	Unbind the follower.
void	validate_state_change (int new_state)
Private Attributes
int	prev_state_
	The previous state that the LF_CH_Event was in.
HASH_MAP	followers_
Friends
class	TAO_LF_Multi_Event
int	successful (void) const
int	error_detected (void) const
virtual int	is_state_final (void)
	Check whether we have reached the final state..

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Detailed Description

Use the Leader/Follower loop to wait for one specific event in the invocation path.

Concrete event types and manipulation class which is used for connection handling purposes.

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Member Typedef Documentation

typedef ACE_Hash_Map_Manager_Ex<TAO_LF_Follower *, int, ACE_Hash<void *>, ACE_Equal_To<TAO_LF_Follower *>, TAO_SYNCH_MUTEX> TAO_LF_CH_Event::HASH_MAP [private]

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Constructor & Destructor Documentation

TAO_LF_CH_Event::TAO_LF_CH_Event

(

void

)

Constructor.

TAO_LF_CH_Event::~TAO_LF_CH_Event

(

void

)

[virtual]

Destructor.

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Member Function Documentation

int TAO_LF_CH_Event::bind

(

TAO_LF_Follower *

follower

)

[private, virtual]

Bind a follower.

An event can be waited on by at most one follower thread, this method is used to bind the waiting thread to the event, in order to let the event signal any important state changes.

This is virtual to allow the LF_Multi_Event derived type share the follower with all the subordinate LF_CH_Events.

Returns:

-1 if the LF_Event is already bound, 0 otherwise

Reimplemented from TAO_LF_Event.

int TAO_LF_CH_Event::error_detected

(

void

)

const [virtual]

Return 1 if an error was detected while waiting for the event

Implements TAO_LF_Event.

int TAO_LF_CH_Event::is_state_final

(

void

)

[protected, virtual]

Check whether we have reached the final state..

Implements TAO_LF_Event.

void TAO_LF_CH_Event::set_state

(

int

new_state

)

[private, virtual]

Set the state irrespective of anything.

Reimplemented from TAO_LF_Event.

void TAO_LF_CH_Event::state_changed_i

(

int

new_state

)

[private, virtual]

Validate and change the state.

Implements TAO_LF_Event.

int TAO_LF_CH_Event::successful

(

void

)

const [virtual]

Return 1 if the condition was satisfied successfully, 0 if it has not

Implements TAO_LF_Event.

int TAO_LF_CH_Event::unbind

(

TAO_LF_Follower *

follower

)

[private, virtual]

Unbind the follower.

Reimplemented from TAO_LF_Event.

void TAO_LF_CH_Event::validate_state_change

(

int

new_state

)

[private]

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Friends And Related Function Documentation

friend class TAO_LF_Multi_Event [friend]

The TAO_LF_Multi_Event class is another specialization of TAO_LF_Event, used for aggregating many connection handlers into a single event object.. It requires friendship so that it can check the is_state_final() flag on each of its contained connection handlers.

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Member Data Documentation

HASH_MAP TAO_LF_CH_Event::followers_ [private]

int TAO_LF_CH_Event::prev_state_ [private]

The previous state that the LF_CH_Event was in.

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

• LF_CH_Event.h
• LF_CH_Event.cpp