java Programming Glossary: lock.lock
Do spurious wakeups actually happen? http://stackoverflow.com/questions/1050592/do-spurious-wakeups-actually-happen lock new ReentrantLock Condition cond lock.newCondition lock.lock try try cond.await System.out.println Spurious wakeup catch..
Java Concurrency in Practice - Sample 14.12 http://stackoverflow.com/questions/10528572/java-concurrency-in-practice-sample-14-12 private int permits SemaphoreOnLock int initialPermits lock.lock try permits initialPermits finally lock.unlock other code omitted...... we need to acquire the lock in the constructor as shown lock.lock is invoked . As far as i know constructor is atomic except the..
Why use a ReentrantLock if one can use synchronized(this)? http://stackoverflow.com/questions/11821801/why-use-a-reentrantlock-if-one-can-use-synchronizedthis Integer ints public Integer getResult String name . . . lock.lock try if ints.size 3 ints null return 9 for int x 0 x ints.size.. An example private ReentrantLock lock public void foo ... lock.lock ... public void bar ... lock.unlock ... Such flow is impossible..
A simple scenario using wait() and notify() in java http://stackoverflow.com/questions/2536692/a-simple-scenario-using-wait-and-notify-in-java public void put T element throws InterruptedException lock.lock try while queue.size capacity notFull.await queue.add element.. lock.unlock public T take throws InterruptedException lock.lock try while queue.isEmpty notEmpty.await T item queue.remove..
In ArrayBlockingQueue, why copy final member field into local final variable? http://stackoverflow.com/questions/2785964/in-arrayblockingqueue-why-copy-final-member-field-into-local-final-variable NullPointerException final ReentrantLock lock this.lock lock.lock try if count items.length return false else insert e return..
Why does java.util.concurrent.ArrayBlockingQueue use 'while' loops instead of 'if' around calls to await()? http://stackoverflow.com/questions/2960581/why-does-java-util-concurrent-arrayblockingqueue-use-while-loops-instead-of-i portion of my implementation below. public Object get lock.lock try if items.size 1 hasItems.await Object poppedValue items.getLast.. null finally lock.unlock public void put Object item lock.lock try if items.size capacity hasSpace.await items.addFirst item..
Simple Java name based locks? http://stackoverflow.com/questions/5639870/simple-java-name-based-locks and store if lock null lock new Lock map.put name lock lock.lock LockManager.releaseLock String name unlock if this was the last..
In Java, what purpose do the keywords `final`, `finally` and `finalize` fulfil? http://stackoverflow.com/questions/7814688/in-java-what-purpose-do-the-keywords-final-finally-and-finalize-fulfil is used in a try catch statement to execute code always lock.lock try do stuff catch SomeException se handle se finally lock.unlock..
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