unity lock

The exclusive lock is also called the Write lock ((eXclusive lock, précis-writers is the x lock), if the transaction T to the data object a plus x lock, then only allow T to read and modify a, no other transaction can be a plus any type of

Shared lock "s lock"Also called a read lock, if the transaction T with the data object a plus s lock, then the transaction T can read a but cannot modify a, the other transaction can only a plus s lock, and cannot add x lock, unti

shared lock (S lock) and exclusive lock (x Lock) Category: Database 2008-11-07 10:53 4409 people read reviews (2) favorite report Shared lock "s lock"Also called a read lock, if the t

Java synchronized keyword usage and level of Lock: Method Lock, Object lock, Class lock Reproduced from: http://blog.csdn.net/le_le_name/article/details/52348314 Java built-in locks: Each Java object can be used as a lock that implements synchronization, and these locks be

Shared lock "s lock"Also called a read lock, if the transaction T with the data object a plus s lock, then the transaction T can read a but cannot modify a, the other transaction can only a plus s lock, and cannot add x lock, unti

1. Features:The thread that has acquired the lock requests the lock again, which can be obtained directly.2. Realize:Custom internal class Sync, inheriting Abstarctqueuedsynchronizer:2.1. Get lock : Lock ()A, Fair lock:Acquire (1)B, non-fair lock:if (compareandsetstate (0, 1))CAS, the current state is 0, the current th

[Unity] Chapter 2.0 Unity editor and basic operations, Chapter 2nd unity Classification: Unity, C #, VS2015 Created on: Key points of this chapter: 1. Master the Unity 5.3.4 editor view and menu items and their meanings. This is the most basic part of getting started a

SOURCE Candycat http://blog.csdn.net/candycat1992/article/OverviewIn general, we need to work with the materials and unity shader in unity to achieve the desired results. One of the most common processes is.1) Create a material2) Create a Unity Shader and assign it to the material created in the previous step3) Assign the material to the object to be rendered4) A

One: Java multi-threaded mutex, and Java multithreading introduce the reason for the bias lock and lightweight lock? --->synchronized of the weight of the lock, that is, when the thread runs to the code block, the program's running level from the user state to the kernel state, to suspend all the threads, so that the CPU through the operating system instructions

Today, we will continue to learn about Microsoft enterprise database 5.0. Today we will introduce the important module of Microsoft enterprise database-Unity. This articleArticleWe will mainly introduce: 1. Basic knowledge about the unity module. 2. Why should we use unity? 3. Under what circumstances should u