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java Programming Glossary: semaphoreJava Concurrency in Practice - Sample 14.12 http://stackoverflow.com/questions/10528572/java-concurrency-in-practice-sample-14-12 Practice Sample 14.12 Not really how java.util.concurrent.Semaphore is implemented @ThreadSafe public class SemaphoreOnLock private.. is implemented @ThreadSafe public class SemaphoreOnLock private final Lock lock new ReentrantLock CONDITION PREDICATE.. lock.newCondition @GuardedBy lock private int permits SemaphoreOnLock int initialPermits lock.lock try permits initialPermits..
More efficient way for pausing loop wanted http://stackoverflow.com/questions/10665780/more-efficient-way-for-pausing-loop-wanted we are all trying to get away from this archaic system. Semaphore s once your thread has grabbed it you hold it until release..
Does this basic Java object pool work? http://stackoverflow.com/questions/1137118/does-this-basic-java-object-pool-work one based on the same idea i.e. maintaining both a Semaphore and a BlockingQueue . My question is do I need both Semaphore.. and a BlockingQueue . My question is do I need both Semaphore and BlockingQueue Am I right that I don't need to do any synchronisation.. import java.util.concurrent.Semaphore public final class Pool T private final BlockingQueue T objects..
http://stackoverflow.com/questions/184147/countdownlatch-vs-semaphore vs. Semaphore Is there an advantage to using java.util.concurrent.CountdownLatch.. instead of java.util.concurrent.Semaphore As far as I can tell the following fragments are almost equivalent.. tell the following fragments are almost equivalent 1 final Semaphore sem new Semaphore 0 for int i 0 i num_threads i Thread t new..
How to make ThreadPoolExecutor's submit() method block if it is saturated? http://stackoverflow.com/questions/2001086/how-to-make-threadpoolexecutors-submit-method-block-if-it-is-saturated BoundedExecutor private final Executor exec private final Semaphore semaphore public BoundedExecutor Executor exec int bound this.exec.. Executor exec int bound this.exec exec this.semaphore new Semaphore bound public void submitTask final Runnable command throws InterruptedException..
Does Java have support for multicore processors/parallel processing? http://stackoverflow.com/questions/3330430/does-java-have-support-for-multicore-processors-parallel-processing classes aid common special purpose synchronization idioms. Semaphore is a classic concurrency tool. CountDownLatch is a very simple..
Investigation of optimal sleep time calculation in game loop http://stackoverflow.com/questions/5274619/investigation-of-optimal-sleep-time-calculation-in-game-loop import java.util.TimerTask import java.util.concurrent.Semaphore public class Main public static void main String args throws.. void main String args throws InterruptedException final Semaphore mutexRefresh new Semaphore 0 final Semaphore mutexRefreshing.. InterruptedException final Semaphore mutexRefresh new Semaphore 0 final Semaphore mutexRefreshing new Semaphore 1 int refresh..
http://stackoverflow.com/questions/5291041/is-there-a-mutex-in-java in java or a way to create one I am asking because a Semaphore object initialized with 1 permit does not help me. Think of..
What is mutex and semaphore in Java ? What is the main difference? http://stackoverflow.com/questions/771347/what-is-mutex-and-semaphore-in-java-what-is-the-main-difference mutex semaphore share improve this question Semaphore can be counted while mutex can only count to 1. Suppose you.. client sets the semaphore until it reaches 10. When the Semaphore has 10 flags then your thread won't accept new connections Mutex.. sub system no one else should have access. You can use a Semaphore for this purpose too. A mutex is a Mutual Exclusion Semaphore..
Does this basic Java object pool work? http://stackoverflow.com/questions/1137118/does-this-basic-java-object-pool-work blocking queue data structure then you can impose a semaphore on top of any data structure to create a thread safe and bound..
http://stackoverflow.com/questions/184147/countdownlatch-vs-semaphore the latch be preferable java multithreading concurrency semaphore share improve this question CountDown latch is frequently..
How to make ThreadPoolExecutor's submit() method block if it is saturated? http://stackoverflow.com/questions/2001086/how-to-make-threadpoolexecutors-submit-method-block-if-it-is-saturated private final Executor exec private final Semaphore semaphore public BoundedExecutor Executor exec int bound this.exec exec.. Executor exec int bound this.exec exec this.semaphore new Semaphore bound public void submitTask final Runnable command.. throws InterruptedException RejectedExecutionException semaphore.acquire try exec.execute new Runnable public void run try..
Java: thread-safe RandomAccessFile http://stackoverflow.com/questions/2882168/java-thread-safe-randomaccessfile class is not thread safe. Now I could use one semaphore to lock all reads and writes but I don't think that performs..
Howto synchronize file access in a shared folder using Java (OR: ReadWriteLock on network level) http://stackoverflow.com/questions/320159/howto-synchronize-file-access-in-a-shared-folder-using-java-or-readwritelock-o across servers Curent implementation uses file semaphores . If the file is about to be written the application tries.. about to be written the application tries to acquire the semaphore by creating an additional file lets name it file.semaphore in.. semaphore by creating an additional file lets name it file.semaphore in the shared folder. If the file.semaphore file already exists..
Java ExecutorService: awaitTermination of all recursively created tasks http://stackoverflow.com/questions/4958330/java-executorservice-awaittermination-of-all-recursively-created-tasks your own synchronization primitive some kind of inverse semaphore and share it among your tasks. Before submitting each task you..
http://stackoverflow.com/questions/5291041/is-there-a-mutex-in-java with 1 permit does not help me. Think of this case try semaphore.acquire do stuff semaphore.release catch Exception e semaphore.release.. help me. Think of this case try semaphore.acquire do stuff semaphore.release catch Exception e semaphore.release if an exception.. do stuff semaphore.release catch Exception e semaphore.release if an exception happens at the first acquire the release..
What is mutex and semaphore in Java ? What is the main difference? http://stackoverflow.com/questions/771347/what-is-mutex-and-semaphore-in-java-what-is-the-main-difference is mutex and semaphore in Java What is the main difference What is mutex and semaphore.. in Java What is the main difference What is mutex and semaphore in Java What is the main difference java multithreading concurrency.. the main difference java multithreading concurrency mutex semaphore share improve this question Semaphore can be counted while..
http://stackoverflow.com/questions/9012371/using-inheritablethreadlocal-with-threadpoolexecutor-or-a-threadpoolexecut threads but only after having acquired a permit from the semaphore and of course releasing the permit when done. share improve..
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