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Complete Explanation of Social Insurance on Work Permits!
Social insurance recently has more attention since there are more people having troubles when applying for work permit extensions. Many foreigners in ...
分类:其他好文   时间:2017-10-27 15:32:45    阅读次数:168
Semaphore
Semaphore可以控同时访问的线程个数,通过 acquire() 获取一个许可,如果没有就等待,而 release() 释放一个许可。Semaphore类位于java.util.concurrent包下,它提供了2个构造器:public Semaphore(int permits);//参数pe ...
分类:其他好文   时间:2017-09-03 12:19:34    阅读次数:195
Java中Semaphore(信号量) 数据库连接池
计数信号量用来控制同时访问某个特定资源的操作数或同时执行某个指定操作的数量 A counting semaphore.Conceptually, a semaphore maintains a set of permits. Each acquire blocks if necessary unti ...
分类:数据库   时间:2017-07-22 15:32:58    阅读次数:312
(转)异步与非阻塞之间的区别(看到的最清晰的说明)
Asynchronous I/O, or non-blocking I/O, is a form of input/output processing that permits other processing to continue before the transmission has fini ...
分类:其他好文   时间:2017-06-08 16:33:19    阅读次数:205
What is CSM mode?
CSM: Compatibility Support Mode The CSM provides additional functionality to UEFI. This additional functionality permits the loading of a traditional ...
分类:其他好文   时间:2017-04-09 10:48:46    阅读次数:417
excellent cushioning and also vitality go back with this boot
The particular manufactured fine mesh higher almost addresses the complete boot. Here is the sort of higher create in which blissfully permits the par ...
分类:其他好文   时间:2016-12-31 11:39:52    阅读次数:142
Master Slave SQL
http://turbogears.readthedocs.io/en/latest/cookbook/master-slave.htmlSQLAlchemyMasterSlaveLoadBalancingSinceversion2.2TurboGearshasbasicsupportforMaster/Slaveloadbalancing andprovidesasetofutilitiestouseit.TurboGearspermitstodeclareamasterserverandanynumber..
分类:数据库   时间:2016-07-22 14:55:37    阅读次数:263
linkList源码
jdk:1.7.0_75 package java.util; /** * Doubly-linked list implementation of the {@code List} and {@code Deque} * interfaces. Implements all optional list operations, and permits all * elements (i...
分类:其他好文   时间:2016-04-29 16:40:05    阅读次数:212
Java多线程学习笔记——信号量的使用
Java中在控制多线程访问资源的时候使用了信号量可以控制多个线程同时访问一个资源。 有两个构造方法: public Semaphore(int permits) public Semaphore(int permits,boolean fair) 第二个参数和重入锁一样,是指定是否公平。(公平是要牺 ...
分类:编程语言   时间:2016-04-09 16:38:10    阅读次数:154
ConCurrent in Practice小记 (3)
ConCurrent in Practice小记 (3)高级同步技巧SemaphoreSemaphore信号量,据说是Dijkstra大神发明的。内部维护一个许可集(Permits Set),用于发放许可和回收许可,存在内部计数器,主要用来计数能否得到资源(一般用来限制同时访问资源数)。当一个线程拿...
分类:其他好文   时间:2015-08-04 10:54:37    阅读次数:136
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