Java高性能线程库：Jetlang
jopen
12年前
Jetlang 提供了一个高性能的Java线程库，该库是 JDK 1.5 中的 java.util.concurrent 包的补充，可用于基于并发消息机制的应用。该类库不提供远程的消息功能，其设计的宗旨是实现一个内存中的消息传递机制：
主要特点有：
- All messages to a particular Fiber are delivered sequentially. Components can easily keep state without synchronizing data access or worrying about thread races.
- Single Fiber interface that can be backed by a dedicated thread or a thread pool.
- Supports single or multiple subscribers for messages.
- Subscriptions for single events or event batching
- Single or recurring event scheduling
- High performance design optimized for low latency and high scalability
- Publishing is thread safe, allowing easy integration with other threading models.
- Low Lock Contention – Minimizing lock contention is critical for performance. Other concurrency solutions are limited by a single lock typically on a central thread pool or message queue. Jetlang is optimized for low lock contention. Without a central bottleneck, performance easily scales to the needs of the application.
Fiber fiber = new ThreadFiber(); fiber.start(); final CountDownLatch latch = new CountDownLatch(2); Runnable toRun = new Runnable(){ public void run(){ latch.countDown(); } }; //enqueue runnable for execution fiber.execute(toRun); //repeat to trigger latch a 2nd time fiber.execute(toRun); latch.await(10, TimeUnit.SECONDS); //shutdown thread fiber.dispose();