ACE  6.4.2
Public Member Functions | Private Member Functions | Private Attributes | List of all members
ACE_Dev_Poll_Reactor::Token_Guard Class Reference

A helper class that helps grabbing, releasing and waiting on tokens for a thread that needs access to the reactor's token. More...

#include <Dev_Poll_Reactor.h>

Collaboration diagram for ACE_Dev_Poll_Reactor::Token_Guard:
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Public Member Functions

 Token_Guard (ACE_Dev_Poll_Reactor_Token &token)
 Constructor that will grab the token for us. More...
 
 ~Token_Guard (void)
 
void release_token (void)
 Release the token .. More...
 
int is_owner (void)
 
int acquire_quietly (ACE_Time_Value *max_wait=0)
 
int acquire (ACE_Time_Value *max_wait=0)
 

Private Member Functions

 Token_Guard (void)
 

Private Attributes

ACE_Dev_Poll_Reactor_Tokentoken_
 The Reactor token. More...
 
int owner_
 

Detailed Description

A helper class that helps grabbing, releasing and waiting on tokens for a thread that needs access to the reactor's token.

Constructor & Destructor Documentation

ACE_Dev_Poll_Reactor::Token_Guard::Token_Guard ( ACE_Dev_Poll_Reactor_Token token)
inline

Constructor that will grab the token for us.

ACE_Dev_Poll_Reactor::Token_Guard::~Token_Guard ( void  )
inline

Destructor. This will release the token if it hasn't been released till this point

ACE_Dev_Poll_Reactor::Token_Guard::Token_Guard ( void  )
private

Member Function Documentation

int ACE_Dev_Poll_Reactor::Token_Guard::acquire ( ACE_Time_Value max_wait = 0)

A helper method that acquires the token at a high priority, and does wake the current token holder.

int ACE_Dev_Poll_Reactor::Token_Guard::acquire_quietly ( ACE_Time_Value max_wait = 0)

A helper method that acquires the token 1) at a low priority, and 2) wait quietly for the token, not waking another thread. This is appropriate for cases where a thread wants to wait for and dispatch an event, not causing an existing waiter to relinquish the token.

int ACE_Dev_Poll_Reactor::Token_Guard::is_owner ( void  )
inline

Returns whether the thread that created this object owns the token or not.

void ACE_Dev_Poll_Reactor::Token_Guard::release_token ( void  )
inline

Release the token ..

Member Data Documentation

int ACE_Dev_Poll_Reactor::Token_Guard::owner_
private

Flag that indicate whether the thread that created this object owns the token or not. A value of 0 indicates that this class hasn't got the token (and hence the thread) and a value of 1 vice-versa.

ACE_Dev_Poll_Reactor_Token& ACE_Dev_Poll_Reactor::Token_Guard::token_
private

The Reactor token.


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