Programmer Think

1. Top down (analysis), bottom up (execution) -A general problem is expressed in the form of several small problems. The same method is used to further decompose the small problems until they can be solved simply and clearly by computer -Unit test and gradual assembly. Follow the top-down path. Until now, all parts of the sys ...

Preface The text and pictures of the article are from the Internet, only for learning and communication, and do not have any commercial use. The copyright belongs to the original author. If you have any questions, please contact us in time for handling. Author: carrot sauce PS: if you need Python learning materials, you can click the link below ...

This note was taken from: https://www.cnblogs.com/zhili/archive/2012/07/18/Thread.html And record the learning process for future reference. Introduction to threads A process is a collection of resources to be used by instances of an application, each running in its own process to ensure that the application is not affected by other application ...

I. TCP based half shutdown 1. Problems caused by unilateral disconnection The close function of Linux and the closesocket function of Windows mean complete disconnection. Complete disconnection means that the input and output streams are disconnected at the same time. If host A no longer needs to transmit data to host B, and ...

Process Management Control What is implemented here is a custom timer that counts the time a child process runs.The main ways of use are timer [-t seconds] command arguments For example, to count the run time of ls, you can enter timers directly, followed by arguments, which are the parameters of the program you want to run.For example: timer l ...

Process 0 initializes the relevant structure of the scheduler, and transforms the scheduling class of process 0 into idle ﹣ sched ﹣ class scheduling class The first function to start executing C language code from assembly code from arch/arm64/kernel/head.S is start_ Start_kernel ----- > sched_init(), let's take a look at t ...

0x00 Regsvr32 introduction: The Regsvr32 command is used to register COM components. It is a command provided by Windows system to register or uninstall controls with the system, and runs in command line mode. Regsvr32.exe of WinXP and above system is under windows\system32 folder; regsvr32.exe of 2000 system is under winnt\sy ...

Internal logic of RunLoop Create runloop static CFRunLoopRef __CFRunLoopCreate(pthread_t t) { CFRunLoopRef loop = NULL; CFRunLoopModeRef rlm; uint32_t size = sizeof(struct __CFRunLoop) - sizeof(CFRuntimeBase); loop = (CFRunLoopRef)_CFRuntimeCreateInstance(kCFAllocatorSystemDefault, __kCFRunLoopTypeID, size, NU ...

This article is mainly about the exploration process of the blogger's using the Haikang SDK for the statistics of human flow. Here is a brief record. There are about two ways to query documents and realize traffic statistics: alarm or monitor, I chose the monitoring mode here. Net? DVR? Startlisten? V30 is the interface to start monitoring. It ...

1. Install Fiddler, please refer to http://together-learn.com/post/263 2. Install HttpRunner, the test I did in windows, precondition: install python and pip pip install httprunner 3. Record interface request through Fiddler 4. Export request session. har format file 5. The har file is converted to the test case file required by HttpRu ...