发明名称 |
Locking tool data objects in a framework environment |
摘要 |
When data, such as tool data, is commonly accessible, there is a danger that concurrent user processes will make overlapping modifications and leave the data in an incomplete or incomprehensible state. The invention provides a locking mechanism to guard against this. The lock objects are maintained in pool or repository. Two types of lock objects are provided; shareable locks that may be shared by many user processes and permit only read access to the locked data, and exclusive locks, useable by only one user process at a time, that permit the owning process to modify the locked data.
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申请公布号 |
US6026401(A) |
申请公布日期 |
2000.02.15 |
申请号 |
US19970950116 |
申请日期 |
1997.10.14 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BREALEY, CHRISTOPHER LAWRENCE;JOHNSTON, JEFFREY GRANT;KLICNIK, VLADIMIR;LAUZON, DAVID MARTIN;LOI, LOK TIN;SEELEMANN, II, DIRK ALEXANDER |
分类号 |
G06F9/46;(IPC1-7):G06F17/30 |
主分类号 |
G06F9/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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