红帽全球峰会9.6. CAS(1)
9.6.1. NAME
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cas - 对强计数器执行"compare-and-swap"操作。
9.6.2. SYNOPSIS
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cas ['OPTIONS'] ['COUNTER_NAME']
9.6.3. 选项
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- --expect='nnn'
- 指定计数器的预期值。
- --value='nnn'
- 为计数器设置新值。
- -q, --quiet='[true|false]'
- 隐藏返回值。默认值为 false。
9.6.4. 示例
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只有当前值为 10时，才会将 --expect=10 --value=20 cnt_a
的值设置为 20
9.6.5. 另请参阅
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add (1)、cas (1)、reset (1)
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