unix system programming book

At the end of last week, I began to read the book Unix/linux System Programming Manual, the weekend time to see the fourth chapter, that this book than directly to see the Linux kernel is better to accept more, because from the code to start, you can better understand, such

Socket Chapter Reading notesHighly recommended Linux/unix system programming manual, known as the God book Beyond Apue.Backlog meaning#include int listen(intint backlog)The backlog parameter limits the number of pending connections (not accept), and within that number,connect will succeed immediately .The upper limit o

Linux/Unix System Programming Manual Reading Notes Chapter 2 This chapter mainly describes the file I/O buffer. System I/O calls (kernel) and C standard library I/O functions (stdio functions) buffer disk operations. Through buffering, the user space can be separated from the actual physical device to a certain extent,

parameter of the former is the file * type and a non-0 value is returned when an error occurs　　8.5 Examples--implementation of fopen and GETC functionsA file in a standard library is not described by a file descriptor, but rather a file pointer that is described using a file pointer is a pointer to a structure that contains various information about a file that contains the following information: A pointer to a buffer, It can read a chunk of the file one at a time. A counter to the number of ch

Linux/Unix System Programming Manual Reading Notes Chapter 2 This chapter describes users and groups, including the/etc/passwd, shadow,/etc/shadow, and/etc/group. Each user has a user name and a user ID (UID ). A user can belong to a group. Each group has a unique group name and associated Group Identifier (GID ). Users and groups are used as follows: 1. Ownershi

This is the first time I read this book. I want to read it again and read it carefully. And find out the keywords you want to remember. Release 1.01 Songsong sorting Chapter 1: Basic UNIX knowledge 1. kernel :. "Kernel" refers to a system software that provides hardware abstraction layer, disk and file system contro

#pragmaOMP parallel Sections8 {9 #pragmaOMP sectionTenprintf"[%d]:hello\n", Omp_get_thread_num ()); One #pragmaOMP section Aprintf"[%d]:world\n", Omp_get_thread_num ()); - } - theExit0); -}The OpenMP standard multithreading is implemented using the # preprocessing tag, which needs to be added with the-FOPENMP parameter when compiling with GCC. Make Hello cc -fopenmp-wall hello.c -o hello>$./hello[0]:hello[ 1]:world>$./hello[1]:world[0]:hello >$As you can see from the running results abov

Linux-unix System Programming Manual Learning notes --michael Kerrisk 1. Linux proprietary programming Features: ⑴epoll, a mechanism for obtaining file I/O event notifications. ⑵inotify, a mechanism for monitoring file and directory changes. ⑶capabilities, a mechanism that gives a process a partial privilege for a sup

can be linked to a nonexistent file, and if the user is unfamiliar with the symbolic link, it is easy to be confused by this situation.At this point, you can use the "-l" command of LS to see the "--" symbol, or the first bit of the preceding symbol "L" for symbolic links, or with LS "-f" command, the symbolic link file followed by an @ character.?11 Creating and reading symbolic links (Symbolic links)Function: Creating Symbolic Linksfunction declaration: #include int symlink (con

. But this example is intended to show the mapping between the C language variables and the process segments. The Application Binary interface (ABI) is a set of rules that specify how binary executables should exchange information at run time with certain services, such as those provided by the kernel or function library. The ABI specifically specifies which registers and stack addresses are used to exchange information and the meaning of the value exchanged, and once compiled for a particula

My operation, I download the book source code on the official website, after the Windows decompression FTP tool to the Linux virtual machineThen make finds an error such as:No rule to make target '. /libtlpi.a ', needed byDepressed for a long time!Scenario: The Source code compression package FTP to the virtual machine in the decompression, make is successful!Attention, habits: always unzip in LinuxLinux/unix