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  • Committer: Andrew Hutchings
  • Date: 2011-02-23 14:17:23 UTC
  • mto: (2196.1.3 build)
  • mto: This revision was merged to the branch mainline in revision 2197.
  • Revision ID: andrew@linuxjedi.co.uk-20110223141723-spck4t85k8igzk4j
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docs/barriers.rst
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User Defined Barriers
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=====================
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SELECT create_barrier();
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SELECT release_barrier();
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SELECT wait();
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SELECT wait_until();
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SELECT signal();
 
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.. code-block:: mysql
 
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  SELECT create_barrier();
 
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  SELECT release_barrier();
 
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  SELECT wait();
 
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  SELECT wait_until();
 
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  SELECT signal();
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A barrier is a synchronization object which can be used to synchronize a group of sessions to a specific rendezvous by calling wait(). When wait() is called, any session of the user may call signal(), allowing all sessions being held by wait() to proceed.
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