Reader-writer lock
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United States of America Patent
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May 3, 2016
Issued Date -
N/A
app pub date -
Jan 22, 2014
filing date -
Jan 22, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and system for implementing a reader-writer lock having a write lock requested by a thread is disclosed. The reader-writer lock is structured to have counters and a flag. The counters use an atomic process to count read locks held or outstanding read lock requests. The flag identifies a counter and is configured to distinguish between counters. A read lock is prepared, acquired, and released. The atomic process is used and the flag or flagged counter is polled. A write lock is prepared, acquired, and released.
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