core.sync.barrier - D Programming Language - Digital Mars

D Programming Language 2.0

# core.sync.barrier

The barrier module provides a primitive for synchronizing the progress of a group of threads.

License:
Boost License 1.0

Authors:
Sean Kelly

Source:
core/sync/barrier.d

class Barrier;
  This class represents a barrier across which threads may only travel in groups of a specific size.

  Examples:

      int  numThreads = 10;
      auto barrier    = new Barrier( numThreads );
      auto synInfo    = new Object;
      int  numReady   = 0;
      int  numPassed  = 0;

      void threadFn()
      {
          synchronized( synInfo )
          {
              ++numReady;
          }
          barrier.wait();
          synchronized( synInfo )
          {
              ++numPassed;
          }
      }

      auto group = new ThreadGroup;

      for( int i = 0; i < numThreads; ++i )
      {
          group.create( &threadFn );
      }
      group.joinAll();
      assert( numReady == numThreads && numPassed == numThreads );

  this(uint limit);
    Initializes a barrier object which releases threads in groups of limit in size.

    Parameters:

    uint limit | The number of waiting threads to release in unison.

    Throws:
    SyncException on error.

  void wait();
    Wait for the pre-determined number of threads and then proceed.

    Throws:
    SyncException on error.

Copyright Sean Kelly 2005 - 2009. | Page generated by Ddoc.