fcntl(fd, F_SETPIPE_SZ, size)可用于更改管道容量(自Linux 2.6.35起) 应用程序的设计不应该关心容量,为了防止写入阻塞,请确保始终有一个活动的读取器 管道的缓存区 管道的缓存区的大小是有限的,PIPE_BUF 如果写入的数据小于等于PIPE_BUF,字节保证是原子的 如果没有足够的空间写入所有字节,则不写入
进程概述getpid() -- 返回进程id#include <unistd .h> pid_t getpid ( void );进程==程序的运行实例每个进程都有一个进程ID (PID)。pid_t:唯一标识进程的正整数getpid()返回调用者的PIDLinux下最大PID为3276…
IN_CLOSE_WRITE IN_CLOSE_NOWRITE IN_OPEN IN_MOVED_FROM IN_MOVED_TO IN_CREATE IN_DELETE IN_DELETE_SELF IN_MOVE_SELF The following events are also definedm grouping two or more events into a single value: IN_ALL_EVENTS IN_CLOSE IN_MOVE 21.3 inotify Events #include <sys/inotify.h> struct...
29 ../sysdeps/unix/sysv/linux/pause.c: No such file or directory. (gdb) bt#0 0x00007f5e52013e47in__libc_pause () at ../sysdeps/unix/sysv/linux/pause.c:29#1 0x000055be1e32d1dainbar_is_now_closed () at stacker_gdb.c:13#2 0x000055be1e32d202inbar () at stacker_gdb.c:19#3 ...
Linux System Programming --Chapter Four,这一章介绍的主题是--高级文件I/O一.分散--聚集I/O分散聚集I/O是一种进行输入和输出的方法。通过此方法,单一系统调用可以将缓冲区向量写入单一数据流,或者将单一数据流读取到缓冲区向量。这个类型的I/O之所以会有此名称,是因为
#include<stdio.h>#include<unistd.h>#include<stdlib.h>intmain(void){inta;printf("Hello, Linux System Programming, World!\r\n"); a =5;exit(0); } 可以使用下面的命令编译这个源码: $gcc -Wall -Wextra hello.c -o hellohello.c: In function ‘main’: ...
Linux System Programming 作者: [美] Robert Love 出版社: O'Reilly Media副标题: Talking Directly to the Kernel and C Library出版年: 2007-9-28页数: 392定价: GBP 38.50装帧: PaperbackISBN: 9780596009588豆瓣评分 8.4 77人评价 5星 33.8% 4星 51.9% 3星 14.3% 2星 0.0% 1星 0.0% ...
How do I write optimal code, and what tricks does Linux provide? What neat system calls are provided in Linux compared to other Unix variants? How does it all work? Those questions are at the center of this book. There are three cornerstones to system programming in Linux: system calls, ...
Chapter 4. Advanced File I/O In Chapter 2, we looked at the basic I/O system calls in Linux. These calls form not only the basis of file I/O, but … - Selection from Linux System Programming, 2nd Edition [Book]
book, you should be familiar with Linux at the user-level logging in, using shell via the command line interface, the ability to use tools such as find, grep, and sort. Working knowledge of the C programming language is required. No prior experience with Linux systems programming is assumed...