Once synchronization object. More...

#include <base/concurrency/Once.h>

Public Member Functions
	Once () noexcept

bool	getToken ()

void	relinquishToken () noexcept

Detailed Description

Once synchronization object.

Once implementation with delayed resource allocation.

void myMethod() noexcept
{
  static Once once;
  if (once.getToken()) {
    // ...
    once.relinquishToken();
  }
}

See also: Event MutualExclusion Semaphore

Version: 1.0

Constructor & Destructor Documentation

◆ Once()

Once::Once ( )

noexcept

Initializes the synchronization object.

Member Function Documentation

◆ getToken()

bool Once::getToken ( )

inline

This method returns true for one thread only and only on the first invocation. All other threads are blocked until relinquishToken() is invoked by the thread for which getToken() returned true. Raises ResourceException if unable to allocate the required resources.

◆ relinquishToken()

void Once::relinquishToken ( )