* Sets the current thread's copy of this thread-local variable * to the specified value. Most subclasses will have no need to * override this method, relying solely on the {@link #initialValue} * method to set
Ps:ThreadLocal 很容易让人望文生义,想当然地认为是一个 “本地线程”。其实,ThreadLocal 并不是一个 Thread,而是 Thread 的局部变量,也许把它命名为 ThreadLocalVariable 更容易让人理解一些。 ThreadLocal 为变量在每个线程中都创建了一个属于当前 Thread 的副本,且该副本只能由当前 Thread 使用,其它 Thread 不...
condition_variable 、 wait 、 notify_one 、 notify_all *:notify_one:通知(唤醒)一个线程 *:notify_all:通知(唤醒)多个线程 #include <iostream>#include<thread>#include<mutex>#include<list>usingnamespacestd;classA {public:voidinNum() {for(inti =0; i <10000; i++) { std::cout<<"写入一个...
ThreadLocal的英文字面翻译为“线程本地”,实质上ThreadLocal代表的是线程本地变量,可能将其命名为ThreadLocalVariable会更加容易让人理解。 以下来至官网的解释: This class provides thread-local variables. These variables differ from their normal counterparts in that each thread that accesses one (via its get...
2. Variable is always accessed via accessor: var numberOfFeedsToFetch_Value: Int = 0 var numberOfFeedsToFetch: Int { set (newValue) { globalBackgroundSyncronizeDataQueue.sync() { self.numberOfFeedsToFetch_Value = newValue } } get { ...
* thread-local variable. If the variable has no value for the * current thread, it is first initialized to the value returned * by an invocation of the {@link #initialValue} method. * * @return the current thread's value of this thread-local ...
/** * Returns the value in the current thread's copy of this * thread-local variable. If the variable has no value for the * current thread, it is first initialized to the value returned * by an invocation of the {@link #initialValue} method. * * @return the current thread's ...
This class provides thread-local variables. These variables differ from their normal counterparts in that each thread that accesses one (via its get or set method) has its own, independently initialized copy of the variable. ThreadLocal类提供线程本地变量。线程本地变量和普通的变量不同,每一个访问...
从结果可以看到,每一个线程都有自己的local 值,这就是TheadLocal的基本使用 。 下面我们从源码的角度来分析一下,ThreadLocal的工作原理。 3.ThreadLocal源码分析 set 方法 /** * Sets the current thread's copy of this thread-local variable * to the specified value. Most subclasses will have no need ...
Creates a new inheritable thread-local variable. InheritableThreadLocal(IntPtr, JniHandleOwnership) A constructor used when creating managed representations of JNI objects; called by the runtime. Properties 展开表 Class Returns the runtime class of thisObject. ...