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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/locks.rst
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A user can create a "lock" which is scoped to their user space. Multiple
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session of the user can see the lock.
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SELECT GET_LOCK();
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SELECT GET_LOCKS();
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SELECT RELEASE_LOCK();
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SELECT RELEASE_LOCK();
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SELECT RELEASE_LOCKS();
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SELECT is_free_lock();
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SELECT is_used_lock();
 
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.. code-block:: mysql
 
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   SELECT GET_LOCK();
 
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   SELECT GET_LOCKS();
 
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   SELECT RELEASE_LOCK();
 
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   SELECT RELEASE_LOCK();
 
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   SELECT RELEASE_LOCKS();
 
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   SELECT is_free_lock();
 
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   SELECT is_used_lock();
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If a session should exit, whatever locks it was holding will be deleted.
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