lock block
释义
闩块；
权威例句
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1. When DB2 performs an index or table scan, DB2 will block on a row lock when it comes across an uncommitted row which another transaction has exclusively (X) locked.
DB2在执行索引或表扫描时，如果遇到一个被另一个事务独占 (X) 锁定的未提交行，那么 DB2将阻塞在行锁上。
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2. With locking, if one thread attempts to acquire a lock that is already held by another thread, the thread will block until the lock becomes available.
使用锁定，如果一个线程试图获取其他线程已经具有的锁定，那么该线程将被阻塞，直到该锁定可用。
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3. The compiler can observe that there is a sequence of adjacent blocks that operate on the same lock, and merge them into a single block.
编译器可以观察到有一个顺序的相邻块对同一个锁进行操作，并会把它们合并到单一块内。
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4. Synchronized methods and blocks allow a thread to lock an object on entry and unlock the object on exit (to the method or block).
同步的方法和代码块允许线程在入口处锁定对象并在出口处解锁(针对方法或代码块)。
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5. When multiple threads ask for the same lock at the same time, one wins and acquires the lock, and the others block.
在多个线程同时请求同一个锁时，会有一个线程获胜并得到锁，而其他线程被阻塞。
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6. In fact, when this feature is enabled, and the INSERT operation requires a new or reused block, DB2 will take an exclusive (x) lock on the block in order to add it to the target cell.
实际上，当该特性被启用，并且INSERT操作要求一个新的或重用的块时，DB 2将在块上采用一个独占的(X)锁，以便将它添加到目标单元。
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7. This synchronized code block acquires the lock associated with the customer class object before it executes.
同步的代码块在执行之前需要与客户类对象相关的锁。
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8. And depending on what other optimizations are enabled by the larger basic block, the duration for which the lock is held may not even be lengthened under coarsening.
而且根据更大的基本块支持其他何种优化，在粗化的情况下，持有锁的时间甚至可能不会延长。
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9. When two threads contend for a lock, one of them will get the lock and the other will have to block until the lock is available.
当两个线程竞争同一个锁时，其中一个会得到锁，另一个不得不阻塞，直到锁可用。
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10. Lock coarsening occurs when adjacent synchronized blocks may be merged into one synchronized block.
当多个彼此靠近的同步块可以合并到一起，形成一个同步块的时候，就会进行锁粗化。
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11. If multiple threads attempt to lock a semaphore after the initial call above, they block and their requests are queued until the pthread_mutex_unlock call is performed.
如果多个线程在完成上面的初始调用后尝试锁定信号量，则这些线程会被阻塞，它们的请求进入队列，直到执行pthread _ mutex_unlock调用。
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12. Takes an exclusive (x) lock on the block.
获得块上的一个独占(X)锁。
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13. While no one would ever directly use the idiom in Listing 1, this code is very similar to the case where the lock associated with a synchronized block can be proven to be a thread-local variable.
虽然没有人会直接使用清单1中的形式，但是与这个代码非常类似的情况是：可以证实与synchronized块关联的锁是一个线程本地变量。
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14. It is easy to forget to use a finally block to release the lock, to the great detriment of your program.
您很容易忘记用finally块释放锁，这对程序非常有害。
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15. Similarly, attempting to acquire an intrinsic lock (enter a synchronized block) cannot be interrupted, but ReentrantLock supports an interruptible acquisition mode.
类似地，尝试获取一个内部锁的操作(进入一个synchronized块)是不能被中断的，但是ReentrantLock支持可中断的获取模式。
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16. As an example, consider any repetitive coding pattern, such as executing a block of code with a lock held.
以一个常见的编码模式为例，如执行带有Lock的代码块。
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17. The guards back out of the cell block and lock the gate behind them.
警卫退出了牢房区，锁紧了牢房区出入的门。
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18. That write-lock would then block other transactions.
然后该写锁阻塞了其他事务。
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19. This is weaker than a pessimistic session lock -- the convention adhered to by the participants is to warn, not to block.
它较悲观会话锁更弱一些，相关方约定发出警告，而不是阻止。
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20. In looking at the code example in Listing 1, one immediate difference between lock and synchronization jumps out — the lock must be released in a finally block.
在查看清单1中的代码示例时，可以看到lock和synchronized有一点明显的区别——lock必须在finally块中释放。
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21. To ensure that locks are released, simply pair every lock method with an unlock method, which should be placed in a try-finally block. This is illustrated in Listing 4.
要保证锁得到释放，我们只需要在每一个lock之后对应执行一个unlock方法，而且它们应该置于try - finally复杂语句中。
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22. Does synchronised method releases lock while going into unsynchronised block?
做同步的方法释放锁而进入非同步块？
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23. It is impossible to make "lock mode" for OSPD, because some "unknown" system events may appear and if you block them, your system can hang or some functions will not work.
OSPD中不可能添加锁定模式。因为有一些“未知”的系统事件可能会发生，如果阻止了他们，你的系统可能会挂起，或者出现某些功能失灵的情况。
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24. It can block the UV radiation and external pollution effectively, tone the complexion, lock the water, unblock the pores and help the skin to breathe freely.
有效隔离空气污染、调整肤色锁住肌肤水份、轻易揉展，遮瑕同时不阻塞毛孔，让肌肤自由呼吸。
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25. A lock is acquired on entry to a synchronized method or block, and released on exit, even if the exit occurs due to an exception.
当进入一个同步方法或同步块的时候必须获得该锁，而退出的时候(即使是异常退出)必须释放这个锁。
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26. The lock on a computer room door does no good if people block the door open.
将计算机房门锁上并不是好办法，因为人们可以把门打开。
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27. Inside the fuel line, fuel vapor may block the flow of liquid gasoline. This is called vapor lock.
在油管中汽油蒸气会阻碍液态汽油的流动，这称为气阻。
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28. The correct key has notches cut into it that match the wards, which block the wrong key from operating the lock.
正确的项具有切口切成它相匹配的病房，这阻止操作锁错误的关键。
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29. When the thread exits the synchronized block of code, the lock is released, no matter how the thread exits the block.
当执行绪结束程式码的同步化区块时，锁定会被释放，不管执行绪如何结束该区块。
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30. As the fastening device of the disposable lock is realized by relatively simple fastening of bayonet and block groove, technology is simplified;
由于一次性用锁的扣紧装置只用 卡口和卡槽等相对简单的扣接来实现，简化了工艺；
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lock block
