unix programming book

"UNIX Environment Advanced Programming" has a lot of code in the process of learning, you need to actually write these code, debugging run. The author refers to the #include "apue.h" in the dock file, which contains the common header files and some custom functions, we have to be able to complete their configuration, the test machine in this paper is ubuntu16.04. 1, first download its source code:src.3e.tar

First, learn the editor, Vim, emacs, and anything.Then you can learn to make file files. You only need to know a bit, so that you can prepare for editing.Program. Then let's take a look at "C programming language" K R. In this way, we can basically perform general programming. By the way, let's look at this data structure book. If you want to learn

UNIX Network Programming: 2nd. 2nd volume, inter-process communication (Chinese Version) Basic Information Original Title: UNIX network programming, Volume 2: Interprocess Communications (2nd edition)Original Press: Prentice HallAuthor: (US) W. Richard Steven sSeries name: Turing Computer Science SeriesPress: People'

;0) {write (SOCKFD, buff, NB Yte); } if (nbyteThis involves the IO multiplexing of SELECT, signal processing, fork subprocess, TCP server, UDP server, socket options.Here the Str_echo function and the fifth chapter of the same, signal processing function is not implemented, notice the function to call Waitpid.Note the interesting part here: We just use Select to listen for TCP's listening sockets and UDP sockets. Use child processes for connected TCP sockets to process.That is, TCP's pa

For reasons of interest, in recent years, especially in some open source architecture or projects to learn a bit of experience or methods worth learning. Think about it, always good reputation in Unix should have something worth learning. I found the English version of the UNIX programming art, it was too slow to read a day, and eventually turned to the Chinese v

This article is senlie original, reproduced Please retain this address: http://blog.csdn.net/zhengsenlie Next, I will introduce several different versions of the same tcp client program, including the stop and other versions, the Select and blocking I/O versions,Non-blocking I/O version, fork version, and thread version. They are all called by the same main function to implement the same function, that is, the echo program client. It reads a line of text from the standard input, writes it to th

This article is senlie original, reproduced Please retain this address: http://blog.csdn.net/zhengsenlie 1. Only let your process call accept, and then "pass" the accepted connected socket to a sub-process.In this way, you do not need to provide lock protection because all sub-processes call accept.2. The parent process must track the idle status of the child process to pass a new socket to the idle child process. Typedef struct {pid_tchild_pid;/* the ID of the child process */intchild_pipefd;/

(NULL, argv[1], addrlen); else if (argc = = 3) listenfd = Tcp_listen (argv[1], argv[2], addrlen); Else err_quit ("Usage:tcpserv01 [host>] cliaddr = Malloc (Addrlen); for (;;) { len = Addrlen; connfd = Accept (LISTENFD, cliaddr, len); Pthread_create (tid, NULL, doit, (void *) CONNFD); } } static void * doit (void *arg) { Pthread_detach (Pthread_self ()); Str_echo ((int) arg); /* Same function as before */ Close ((int) arg); /* Do with connected socket

This article is Senlie original, reprint please retain this address: Http://blog.csdn.net/zhengsenlie1. After creating a thread pool in the program startup phase, just let the main thread call accept and pass the client connection to an available thread in the pool.Used to maintain information-based thread structure for each thread typedef struct {pthread_tthread_tid;/* thread ID */longthread_count;/* processing the number of connections */} Thread; thread*tptr;/* the thread structure pointer to

. Compile the program, generate and execute the executable file Pthread_detach_demo,gcc -o pthread_detach_demo-pthread pthread_detach_demo.clienhua34:demo$. /Pthread_detach_demo in new thread.pthread_join error:invalid argumentFrom the above running results, we can see that for the disconnected state of the thread, call the Pthread_join function times wrong. If you comment out a line of code that calls pthread_attr_setdetachstate in the above program, and then reproduce the program, build and ex

be set to pthread_canceled.Let's take a look at an example of a thread termination,#include #include#includestring.h>#includevoid*Thr_fn1 (void*Arg) {printf ("In thread 1\n"); return((void*)1);}void*thr_fn2 (void*Arg) {printf ("In thread 2\n"); Pthread_exit ((void*)2);}intMain (void){ interr; pthread_t Tid1, Tid2; void*Tret; Err= Pthread_create (tid1, NULL, THR_FN1, NULL); if(Err! =0) {printf ("can ' t create thread 1:%s\n", Strerror (err)); Exit (-1); } Err= Pthread_create (Tid2, NULL, THR_F

This article is Senlie original, reprint please retain this address:Http://blog.csdn.net/zhengsenlie1. File lock file system operation, more time-consuming2. Thread locking is not only suitable for locking between threads in the same process, but also for locking between different processes.3. Use thread lockout requirements between different processes:1) The mutex variable must be stored in a memory area shared by all processes2) must inform the thread function library This is a mutex that is s