ACE_Test_and_Set< ACE_LOCK, TYPE > Class Template Reference

Implements the classic ``test and set'' operation. More...

#include <Test_and_Set.h>

Inheritance diagram for ACE_Test_and_Set< ACE_LOCK, TYPE >:

Inheritance graph
[legend]
Collaboration diagram for ACE_Test_and_Set< ACE_LOCK, TYPE >:

Collaboration graph
[legend]
List of all members.

Public Member Functions

 ACE_Test_and_Set (TYPE initial_value=0)
TYPE is_set (void) const
 Returns true if we are set, else false.
TYPE set (TYPE)
virtual int handle_signal (int signum, siginfo_t *=0, ucontext_t *=0)

Private Attributes

TYPE is_set_
 Keeps track of our state.
ACE_LOCK lock_
 Protect the state from race conditions.

Detailed Description

template<class ACE_LOCK, class TYPE>
class ACE_Test_and_Set< ACE_LOCK, TYPE >

Implements the classic ``test and set'' operation.

This class keeps track of the status of <is_set_>, which can be set based on various events (such as receipt of a signal). This class is derived from <ACE_Event_Handler> so that it can be "signaled" by a Reactor when a signal occurs. We assume that <TYPE> is a data type that can be assigned the value 0 or 1.


Constructor & Destructor Documentation

template<class ACE_LOCK, class TYPE>
ACE_Test_and_Set< ACE_LOCK, TYPE >::ACE_Test_and_Set TYPE  initial_value = 0  ) 
 


Member Function Documentation

template<class ACE_LOCK, class TYPE>
int ACE_Test_and_Set< ACE_LOCK, TYPE >::handle_signal int  signum,
siginfo_t = 0,
ucontext_t = 0
[virtual]
 

Called when object is signaled by OS (either via UNIX signals or when a Win32 object becomes signaled).

Reimplemented from ACE_Event_Handler.

template<class ACE_LOCK, class TYPE>
TYPE ACE_Test_and_Set< ACE_LOCK, TYPE >::is_set void   )  const
 

Returns true if we are set, else false.

template<class ACE_LOCK, class TYPE>
TYPE ACE_Test_and_Set< ACE_LOCK, TYPE >::set TYPE   ) 
 

Sets the <is_set_> status, returning the original value of <is_set_>.


Member Data Documentation

template<class ACE_LOCK, class TYPE>
TYPE ACE_Test_and_Set< ACE_LOCK, TYPE >::is_set_ [private]
 

Keeps track of our state.

template<class ACE_LOCK, class TYPE>
ACE_LOCK ACE_Test_and_Set< ACE_LOCK, TYPE >::lock_ [private]
 

Protect the state from race conditions.


The documentation for this class was generated from the following files:
Generated on Wed Nov 23 15:50:51 2005 for ACE by  doxygen 1.4.5