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There are two socket modes: blocking and non-blocking. If blocking is used, if a network problem occurs at a certain point in time, when you call Recv to receive data, it will causeProgramHanging there! There are two solutions to this problem: one

There are up to eight timers in the stm32. tim1 and tim8 are advanced timers that can generate three pairs of PWM complementary outputs. They are often used in the drive of Three-Phase Motors. Their clock is generated by the output of apb2. The

View Ubuntu version: sudo lsb_release- Install the latest wine version:1) Add a signature:# Wget-QHttp://wine.budgetdedicated.com/apt/387EE263.gpg-o-| sudo apt-key add- 2)Add wine Source:Run the following command for Ubuntu jaunty (9.04:# Sudo

What is the difference between a vswitch and a vro:   Vro is used to find a route.   Connect a vro to the entire Wan.   A switch is connected to an internal network, such as our LAN.   Of course, we have seldom separated them, because our family's

Some important concepts in database learning are as follows: Http://hi.baidu.com/sundensky/item/5e5b075fb865d5424fff2014) MACRO: Relational databases, collections, databases, database objects, T-SQL statements, enterprise managers, transactions,

  Lexical analysis has a lot of theoretical knowledge, including regular syntax, conversion between them, and deterministic and uncertain finite automaton...   It is not difficult to write a lexical analyzer by yourself. As long as the simplest

Debugging passed in Turbo C 2.0 (removing Chinese comments) # I nclude "stdio. H"# I nclude "malloc. H"# Define null 0# Define l sizeof (struct integer)Struct integer/* define struct */{Int num;Int zhengshu;Struct integer * next;};Int N; // The

You are welcome to reprint it. Please indicate the source. [Flyweight mode] Official description: IntentionUse the sharing technology to effectively support a large number of fine-grained objects. Applicability1. An application uses a large number

Multi-threaded programming is very complicated, and Chrome's multi-threaded processing has a lot to learn from. This article is the design and description of threading In the chromium project. It is translated and annotated to help you understand it.

Information sending and receiving and file receiving in blocking mode Overview: Sending and receiving data is the topic of network programming. We can use SEND and Recv to send and receive data on sockets. Of course, we also have wsasend and wsarecv

  Teacher Wang Shuang's "assembly language" is a good compilation book, which uses common examples to explain a lot of difficulties that have made compilation beginners confused. For example, register segmentation addressing, the role of various

The problem is that in your own program, you need to execute the corresponding function according to the received command (this command is a string. Similar situations may include: 1. socket program: The program may execute the corresponding

To discuss heap sorting, we should first briefly discuss the data structure of heap. The binary heap used for heap sorting can be represented by an array, and it can be regarded as a Complete Binary Tree. the last layer of the tree should be filled

Description: There is a digital triangle like this:　　　　　　　　　 73 88 1 02 7 4 44 5 2 6 5 Starting from the vertex, each number can only go to the lower left and lower right directions to find the sum of the maximum paths when the last row is

Description: A sequence composed of N integers (positive and negative): A [1], a [2], a [3],…, A [n], finding a [I] + A [I + 1] +... + The maximum value of the sub-segment and of a [J. When the maximum child segment is negative, it is specified that

The voltage heel has the characteristics of high input impedance and low output impedance. You can simply understand that when the input impedance is very high, it is equivalent to opening an open circuit for the front-level circuit. When the output

/* 7bit EncodingInput: psrc-source string pointerNsclength-source String LengthOutput: pdst-target encoding string pointerReturn Value: the length of the target encoding string.*/ Int gsmencode7bit (const char * psrc, unsigned char * pdst, int

The procedure is as follows:   First, check that windbg, VMWare, and virtual operating systems have been installed. Here we use windbg 6.12.0002.633 x86, For example, VMWare 6.5 and Windows XP Professional SP3.   Download the drivermonitor tool to

Because the project needs to save costs and update hardware, it mainly includes the PPC mpc5125 processor, DDR2 memory and norflash. Lin Gong hopes to replace the old spansion s29gl128p and update it to spansion 65 nm s29gl256s with a higher speed

In the MDK environment, the ucgui of version 3.90 is finally transplanted to the stm32. The routine code is displayed on the Internet, and the tutorial Method for porting ucgui under stm32 is rarely seen, for your convenience, you can use this