2.1 ConditionWait publicclassConditionDemoWaitimplementsRunnable{privateLocklock;privateConditioncondition;publicConditionDemoWait(Locklock, Conditioncondition) {this.lock=lock;this.condition=condition; }@Over
public final native void wait(long timeout) throws InterruptedException; /** * Causes the current thread to wait until it is awakened, typically * by being <em>notified</em> or <em>interrupted</em>, or until a * certain amount of real time has elapsed. * <p> * The current thread m...
* 方法2,显式等待,在0-10s中去定位id为“su”的元素,WebDriverWait默认每500ms就调用一次ExpectedCondition * 直到定位成功或者时间截止,ExpectedCondition的返回值要么为true要么为不为空的对象, * 在规定时间内若没有定位成功元素,则until()会抛出org.openqa.selenium.TimeoutException 。*/publicclassYsfTest_20180...
condition) { wait(timeout); } doStuffAssumingConditionIsTrueOrTimeoutHasOccurred();} 虚假唤醒会导致doStuffAssumingConditionIsTrueOrTimeoutHasOccurred()方法在条件仍然为false且还没有超时时被执行。 应该这样写: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 synchronized (this) { long now = System...
我们在处理并发场景的时候可以利用该类的该方法实现超时处理逻辑。 其中httpclient就是利用这个来抛出wait connectin time out 的异常的,当所有的链接数达到限制的时候 awaitUntil boolean awaitUntil(Date deadl…
* continuing to wait if the condition is not satisfied. In other words, * waits should always occur in loops, like this one: * <pre> * synchronized (obj) { * while (<condition does not hold>) * obj.wait(timeout); * ... // Perform action appropriate to condition ...
Java并发编程:线程间协作的两种方式:wait、notify、notifyAll和Condition 在前面我们将了很多关于同步的问题,然而在现实中,需要线程之间的协作。比如说最经典的生产者-消费者模型:当队列满时,生产者需要等待…
java多线程基本概述(十)——Condition Condition共有一下几个api: voidawait()//Causes the current thread to wait until it is signalled or interrupted. //不支持超时等待 booleanawait(longtime, TimeUnit unit)//Causes the current thread to wait until it is signalled or interrupted, or the specified...
2、Object.wait with timeout 3、Thread.join with timeout 4、LockSupport.parkNanos 5、LockSupport.parkUntil TERMINATED-终止 Thread state for a terminated thread. The thread has completed. 线程结束状态。线程执行完毕。 线程状态机 来一张图总结一下 ...
Object.wait with timeout Thread.join with timeout LockSupport.parkNanos LockSupport.parkUntil 这里重点关注一下LockSupport,该类是用来创建锁和其他同步类的基本线程阻塞原语,是一个针对Thread.suspend和Thread.resume()的优化,也是针对忙等,防止过度自旋的一种优化(关于这一点,感兴趣的同学可以参阅一下文献5)。