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ACE_Test_and_Set Class Template Reference

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

#include <Test_and_Set.h>

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List of all members.

Public Methods

 ACE_Test_and_Set (TYPE initial_value=0)
TYPE is_set (void) const
 Returns true if we are set, else false. More...

TYPE set (TYPE)
 Sets the <is_set_> status, returning the original value of <is_set_>. More...

virtual int handle_signal (int signum, siginfo_t *=0, ucontext_t *=0)
 Called when object is signaled by OS (either via UNIX signals or when a Win32 object becomes signaled). More...


Private Attributes

TYPE is_set_
 Keeps track of our state. More...

ACE_LOCK lock_
 Protect the state from race conditions. More...


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   siginfo = 0,
ucontext_t   ucontext = 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    status
 

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::is_set_ [private]
 

Keeps track of our state.

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

Protect the state from race conditions.


The documentation for this class was generated from the following files:
Generated on Tue Aug 20 15:28:12 2002 for ACE by doxygen1.2.13.1 written by Dimitri van Heesch, © 1997-2001