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In the interview about multi-threaded synchronization, you have to think about the question, we know that glibc pthread_cond_timedwait underlying is achieved by linux futex mechanism. The ideal synchronization mechanism should be to use atomic instructions to solve the problem in user mode without lock conflicts, and to sleep and wake up with ...

Original Link: http://www.cnblogs.com/riasky/p/3507419.html 1. What is introspection? Self-reflection refers to self-evaluation, self-reflection, self-criticism, self-regulation and self-education. It is a method of self-moral cultivati ...

Catalog   Explanation of Algorithms NEXT Array Explanation Template Example A:HDU-1711 Number Sequence B:HDU-1686 Oulipo C:HDU-2087 cut strips D:HDU-3746 Cyclic Nacklace E:HDU-1358 Period F:POJ-2406 Power Strings G:POJ-2752 Seek the Name, Seek the Fame H:POJ-3080 Blue Jeans Explanation ...

Learn Lombok. About POJO There are closeness and security features in Java object-oriented programming.Closure is the enclosure of domain variables in a class, that is, decorate them with private s.As a result, other classes cannot access the variable.In this way, we enclose these variables within the class, which improves the security of the ...

Non-parent-child component passed values vuex 1. Value transfer by non-parent and child components Sample Key Code for Implementing Value Transfer for Non-Parent-Child Components Based on Parent-Child Component Communication and Value Transfer: 1 <template> 2 <div> 3 <!-- Student Show --> 4 ...

Background The MQTT protocol was used to build a chat server in the group. The connection became unavailable the day before yesterday when the big news (more than 5,000 Chinese characters) was tested. No reply was received for all the messages sent subsequently. Server environment: Netty : 4.1.32.Final Use the MqttDecoder that comes with Netty ...

Once an object is published, it is a secure object, which is an immutable object. The conditions that an immutable object needs to satisfy: The state of an object cannot be modified after it is created All fields of an object are final types Objects are created correctly (this reference does not escape during object creation) final ke ...

Merge the two ordered lists into a new ordered list and return. The new linked list is composed of all the nodes of a given two linked list. Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. Examples: Input: 1 - > 2 - > 4, 1 - > 3 - > 4 Outp ...

Original: Pipeline mechanism in ASP.NET Core First of all, thank you very much for your last article. C# Pipeline Programming Thank you for your support and affirmation. I hope that every time I share with each other, I can get some benefits. Of course, if I have some incorrect or inappropriate narrative, please point it out. Okay, let's mo ...

1. College Entrance Examination School College Data - Write in front Finally, scrapy crawler framework is written, which can be said to be the highest rate of emergence in the python crawler framework, we will focus on its use rules next. Installation process Baidu itself, you can find more than three ...