Assume we have data items d1, d2,, dn with each di protected by a lock stored in

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Assume we have data items d1, d2,…, dn with each di protected by a lock stored in memory location Mi.

a. Describe the implementation of lock-X(di) and unlock(di) via the use of the test-and-set instruction.

b. Describe the implementation of lock-X(di) and unlock(di) via the use of the compare-and-swap instruction.

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Database System Concepts

ISBN: 9780078022159

7th Edition

Authors: Abraham Silberschatz, Henry F. Korth, S. Sudarshan

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Question Posted: Jun 13, 2022 06:43 AM

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Assume we have data items d1, d2,, dn with each di protected by a lock stored in

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a To lock di execute a testandsetMi If the return value is 0 then the l...View the full answer

Database System Concepts

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