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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 >:

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

[legend]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.
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.

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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.

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Constructor & Destructor Documentation

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

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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_>.

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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.

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

• Test_and_Set.h
• Test_and_Set.cpp

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