29 lines
645 B
RPMSpec
29 lines
645 B
RPMSpec
# While requesting nowait lock, if the lock requested should
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# be inserted in front of some waiter, check to see if the lock
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# conflicts with already-held locks or the requests before
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# the waiter. If not, then just grant myself the requested
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# lock immediately. Test this scenario.
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setup
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{
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CREATE TABLE a1 ();
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}
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teardown
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{
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DROP TABLE a1;
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}
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session s1
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setup { BEGIN; }
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step s1a { LOCK TABLE a1 IN ACCESS EXCLUSIVE MODE; }
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step s1b { LOCK TABLE a1 IN SHARE ROW EXCLUSIVE MODE NOWAIT; }
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step s1c { COMMIT; }
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session s2
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setup { BEGIN; }
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step s2a { LOCK TABLE a1 IN EXCLUSIVE MODE; }
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step s2c { COMMIT; }
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permutation s1a s2a s1b s1c s2c
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