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In all kernel objects, the event kernel object is the most basic object. Event to notify that an operation has been completed.Client and a server that need to communicate with each other example (VS2008)The composition of the event kernel objectA

Reproduced from: http://blog.chinaunix.net/uid-26275986-id-3886498.html A process is an important concept in a system, which simply means a running program, but a program represents a static instruction code. A process consists of a system-managed

Note: This article refers to the collation of Oracle tree querySQL Tree recursive query is a special case of database query, and it is also one of the most common cases of organization structure and administrative division query. Here are some

Mysql-proxy is a simple program that is located between your client side and the MySQL server to monitor, analyze, or change their communications. It is flexible, unlimited, and common uses include: load balancing, failure, query analysis, query

Run   Create event 1 HANDLE event [4 ] = {0 };// event   Create thread Span style= "COLOR: #008080" >1 HANDLE hthread[3 ] = {0 }; // represents thread   Create critical section critical_section CS;  

Source: http://www.cnblogs.com/TenosDoIt/archive/2013/04/15/3022036.htmlCreateThread: Windows API functions (standard form of SDK functions, straightforward creation, can be used in any situation), provides operating system-level creation of threads,

We use events and a variable that records the number of readers to solve reader-writer problems in the second-to-last multi-threaded 11th article Reader-writer question. The problem has been solved, but the code is a bit complicated. This article

Preliminary knowledge: Function Name:vfprintfFunction: Format the data output to the specified data flow using:int vfprintf (FILE *stream, char *format, va_list param);Function Description:vfprintf ()The data is converted and formatted according to

The question of whether multiple threads access the same variable requires locking is discussed earlier. Today's code validates the previous conjecture that the minimum exchange data for 32-bit CPUs and memory is 4 bytes/times, which is why the

As with the producer consumer Problem of the second multi-threaded tenth producer Consumer problem , reader writer is also a very famous synchronization problem. The reader writer's question description is very simple, there is a writer many readers,

1 Kernel objectsThe thread and mutex two kernel objects have been learned before. This section tells the event of this kernel object. The concept of kernel objects, which is probably not very clear, is simply that the kernel object is the system

Http://blog.sina.com.cn/s/blog_5037eacb0102vm5c.htmlSee if the index is used in official MySQL:  in the Percona version or Marida can be seen through the information_schea.index_statistics, in the official version of how to view it?   select

Original link: http://www.cnblogs.com/yjf512/p/5362025.htmlThe premise: Here is the typical LNMP structure, the NGINX+PHP-FPM pattern.If I have a PHP program executed very slowly, even in the Code of Sleep (), and then the browser connected to the

I've seen it a long time ago, I'll summarize it today.One, create a class in PHPCreating a simple class in PHP is like this:II. Structure of Zend_class_entryZend_class_entry is a struct defined in the kernel and is the infrastructure type of classes

Canvas. drawVertices is the common format of Canvas. drawBitmapMesh. For details about BitmapMesh, see Android ApiDemos example resolution (55): Graphics-> BitmapMesh. Add a green mesh to the image to better display the drawVertices

The PHP empty string describes the relationship between 0, null, empty, and false. If the method function is used incorrectly or is used less, if the logic sequence of several method functions is wrong, it may be a vulnerability and cannot be found

In the previous section, we introduced some basic concepts and main APIs. At the beginning of this section, we will list and analyze some instances. I have tested all the code in this article in vs2008. You only need to replace a few macro

Determine the relationship between 0 and ', null, empty, False $a = 0; The relationship between echo "0 and", empty, NULL, false: "; if ($a = = ") { echo "0 = ="; "; }else{ echo "0! ="; "; } if (trim ($a) = = ") { echo "Trim (0) = ="; "; }else{ echo

IP interface API query IP interface queryHttp://api.apidatas.com/ip/docInterface DescriptionThe IP address location is called. this interface is not pure data and is not comparable to any other data on the market, but... it cannot be

Object-oriented summary of the PHP kernel, object-oriented PHP kernel One, create a class in PHP Creating a simple class in PHP is like this: II. Structure of Zend_class_entry Zend_class_entry is a struct defined in the kernel and is the