2024年3月11日发(作者：)

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专利名称：CODE OPTIMIZATION WHEN USING

MULTIPLE READER LOCKS AND A NON-

READER LOCK

发明人：Nikola Grcevski,Mark Graham Stoodley

申请号：US11864401

申请日：20070928

公开号：US2A1

公开日：20090402

专利附图：

摘要：Illustrative embodiments provide a way to use multiple-reader locks for those

paths where no writes occur. A computer implemented method, data processing system

and computer program product provide a capability where only if one of the writing

paths executes will a full writer lock be acquired. Illustrative embodiments may be used

to create two copies of the critical section comprising a reading version and a writing

version. The default execution leads to the reader version, which only acquires a reader-

lock. The reader version of the code executes prior to execution of the writer lock only

version, otherwise bypassing the writer lock only version. If the execution leads to a path

in which a write would occur, the reader only version branches to the beginning of the

writer version. The writer version is identical to the original code and obtains a full writer

lock. If execution in the reader lock does not lead to a path that writes, then only the

reader lock is acquired.

申请人：Nikola Grcevski,Mark Graham Stoodley

地址：Toronto CA,Markham CA

国籍：CA,CA

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