WebMar 23, 2024 · 上一篇 线程池基础知识整理 做了简单的总结后,本篇来试着追一追源码,看看线程池的内部运行逻辑. 要想分析透彻整个线程池运行的逻辑,是个庞杂的工程,牵扯到线程池生命周期管理,队列管理,拒绝策略,调配逻辑等等.这里只是从一个Runnable任务发布到线程池中 ... Webpublic class ThreadPoolExecutor extends AbstractExecutorService { // 线程池状态，由两部分构造 runState workerCount // runState: 占2bit(29~30位) // workerCount: 占29bit(0~28位) // 符号位: 占1bit(最高位) private final AtomicInteger ctl = new AtomicInteger(ctlOf(RUNNING, 0)); // workerCount 最大容量: 2^29 - 1 private ...
java - about ThreadPoolExecutor member variable - Stack Overflow
Web*/ private final AtomicInteger ctl = new AtomicInteger(ctlOf(RUNNING, 0)); private static final int COUNT_BITS = 29; // Integer.SIZE - 3; private static final int CAPACITY = (1 < … Web* Methods for creating, running and cleaning up after workers */ /** * Checks if a new worker can be added with respect to current * pool state and the given bound (either core or maximum). If so, * the worker count is adjusted accordingly, and, if possible, a * new worker is created and started, running firstTask as its * first task. earth 2 tv
详解Java线程池的ctl(线程池控制状态)【源码分析】 - moonfair - 博 …
WebMar 20, 2024 · isRunning 方法中，直接拿 ctl 的值和 SHUTDOWN 作比较。这个要先知道在 RUNNING 状态下，ctl 的值是什么样的。初始状态，ctl 的值是11100000 ... … Web1 private final AtomicInteger ctl = new AtomicInteger(ctlOf(RUNNING, 0)); 分析一波： ctl (线程池控制状态)是 原子整型 的，这意味这 对它进行的操作具有原子性。 如此一来，作为 … WebA synchronous Integer stores two values, with a maximum of 3 bits to place the thread pool state; The remaining 29 places the number of workers, so there can be at most 2 ^ 29-1 workers */ private final AtomicInteger ctl = new AtomicInteger(ctlOf(RUNNING, 0)); private static final int COUNT_BITS = Integer.SIZE - 3; private static final int ... earth 2 tv series download