unity lock

Written in front, in fact, the type and scope of database locks are affected by a variety of factors, such as database isolation level, SQL statements, whether to use primary keys, indexes, and so on. Can see the blog: http://www.cnblogs.com/zhaoyl/p/4121010.html LearnThis section describes the types of locks used by InnoDB. Shared Lock (S) and exclusive lock (X) Intent

The cost of locking overhead locks is huge, especially for multicore multi-processing.The introduction of multi-processing, itself is to be parallelized processing to improve performance, however, because of the existence of a shared critical section, and this critical section can only have one thread access (especially for write operations), then the parallel execution flow is serialized here, visually, here seems to be a bottleneck on the Broad Road, Because serialization is inherently present

Tags: database DB21, Concept descriptionThe so-called lock upgrade (lock escalation), is a mechanism of the database, in order to save memory overhead, it will be a large number of high-resource-intensive fine-grained locks into a small amount of relatively small resources to occupy a coarse-grained lock, In most cases, the main point is to upgrade a large number

Java concurrent package Lock implementation principle, java concurrent package lockIntroduction and use of Lock Lock is a thread synchronization tool introduced in java 1.5. It is mainly used to control shared resources under multiple threads. Essentially, Lock is only an interface (located in java \ util \ concurrent

The code is as follows:Using Unityengine;using system.collections;//1. The UI is introduced. Using Unityengine.ui;public class Testsliderevent:monobehaviour {//2. Define a Text target object. Public Text TARGETTEXTOBJECT;//3. Define a Slider target object. Public Slider targetslideroject;//with the initializationvoid Start () {}//Update is called once per framevoid Updat E () {//4. Update content. Targettextobject.text = "Sliding value is" + Targetslideroject.value;}}Tie the code directly to the

Solution: http://www.cnblogs.com/fly-100/p/4570366.htmlHere we add a detection function directly to the place where Input.getmousebuttondown (0) is used, checkguiraycastobjects, as follows BOOL Checkguiraycastobjects () { Pointereventdata eventData = new Pointereventdata (main.instance. EventSystem); Eventdata.pressposition = input.mouseposition; Eventdata.position = input.mouseposition; listGraphicraycaster. Raycast (EventData, list); Debug.Log (list. C

Move the Unity slider out and move the unity slider out. Unity slider fly out Using UnityEngine; using System. collections; public class ThrowBasketBallTest: MonoBehaviour {public float BeginTime; public float EndTime; public float TimeInterval; public float Force; public Vector3 BeginPosition; public Vector3 EndPosition; public Vector3 Direction; void Start (

from the end of last year, I responsible for establishing a template project in unity to access iOS, Android-related SDKs, all the way down, filled a lot of pits, the anguish of which deep experience. So decided to fill out the pits themselves, so that we can walk more smoothly, but without my consent, prohibit reprint, thank you.The following will be included in the next chapter (constantly updated):Focus on exporting the Xcode project directory stru

Wang Liping-how to view the version of Unity, Wang Liping-unity1. Open Unity, Help-> About Unity 2. Version Number What is the theme song for A Dream of Red Mansions? Old Version Wang Liping and Chen Li sang the story of "Qu Leng Mei.One is xianyuan Xianzhi, and the other is Meiyu. If you say there is no such thing, you may encounter him again in this life.

Unity mobile phone gravity sensing and unity gravity sensing A friend who is engaged in gravity sensing may be able to use it. I wrote it here for some time and sometimes I forgot to take a look at it, because I don't think I can remember it all my life, so sometimes it's easy to write a blog for yourself, haha. When making a Unity gravity sensor game, we need

http://blog.csdn.net/janeky/article/details/17233199 Project Introduction This is a simple unity project that implements the most basic chat room Group chat feature. After you log in to a chat room, users can enter information to speak and others can receive messages. The player can also change the nickname. The project details the process of the front-end socket communication, encoding, and parsing of the binary stream. The mai

It's often necessary to pull out the prefab or open the scene for testing when you're packing in unity or helping to plan your art.In fact, this is in the UI packaging in the article mentioned, but the focus is different, the focus of the article is packaging, the focus of this is to put a little bit of knowledge inside out to talk aboutAnd then we'll talk about how they're done separately.First, pull out the prefabricated prefabIt's like we usually p

Starting today, I will be working with you to learn the use of this control reversal (inversion, IoC) and Dependency injection (Dependency injection, DI) containers. As for IOC and DI, you can refer to the "IOC container and Dependency injection model" by Martin Fowler. Describe Unity Application Block (Unity) is a lightweight, extensible, dependency injection container that supports constructors, propert

Add by Zhj: This question did not give a satisfactory answer at the end, I have the same confusion with the questioner. Also, see mysql transaction isolation level, lockWhy is optimistic locking more efficient than pessimistic lock?Title: "The Collection" Why optimistic locking efficiency is higher than pessimistic lock? Sending station: Drink from (May 19, 2008 12:29:00 Monday), the station letter☆────────

Innodb row lock source code learning (1), innodb row lock source code Innodb is the most popular storage engine in mysql databases. Compared with other storage engines, innodb supports transactions and row-level locks. Today, I would like to share with you the basic knowledge of innodb row lock implementation. Due to the large length, the article will be expanded

Lock Lock IntroductionLock lock Mechanism is a new locking mechanism after JDK 5, unlike the built-in lock, the lock lock must be explicitly declared and the lock is released in the app

Get an unfair lock (based on jdk1.7.0_40)Unfair locks and fair locks the process is the same on the method of acquiring locks, and their differences are mainly expressed in the "mechanism of trying to acquire locks". Simply put, the "fair lock" is a fair policy every time it tries to acquire a lock (according to the wait queue), while the "unfair

This section is mainly about the implementation of read-write locks.As mentioned in the previous section, Readwritelock appears to have two locks: readlock/writelock. If it's really two locks, how do they affect each other?In fact, the realization of lock in Reentrantreadwritelock is done by Java.util.concurrent.locks.ReentrantReadWriteLock.Sync. This class looks familiar, in fact it is a subclass of Aqs, a similar structure that exists in Countdownla

This chapter introduces the lock Acquisition Mechanism of "fair lock" (the fair lock in this article refers to the fair lock of mutex lock), including: for basic concepts, refer to the Code to obtain the fair lock (based on JDK1.7

A small game made with Unity, written in the following example. I personally think the article is well written. Haha, unity is well written.A specific idea, steps, and process of writing a game in Unity3D with no less than 2500 words I am a teacher of 10 software and I will arrange this assignment .. Here is a copy. Go to the 9-layer 302 of the Main Building of Tangshan Normal University to remember to bri