jxluoix的专栏

  一张有关io的图片    

  void __init tcp_v4_init(struct net_proto_family *ops) { int err = sock_create(PF_INET, SOCK_RAW, IPPROTO_TCP, &tcp_socket); if (err < 0) panic("Failed to create the TCP control sock...

  void __init icmp_init(struct net_proto_family *ops) { struct inet_opt *inet; int i; for (i = 0; i < NR_CPUS; i++) { int err; if (!cpu_possible(i)) continue; err = sock...

  static inline struct task_struct * get_current(void) { return current_thread_info()->task; } #define current get_current()   /* how to get the thread information struct from C */ sta...

  linux epoll_ctl函数对应系统调用sys_epoll_ctl   asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, struct epoll_event __user *event) { int error; struct file *file, *tfile; struct eventpoll ...

#include <stdio.h> #include <stdlib.h> #include <sys/mount.h> #include <sys/types.h> #include <unistd.h> #undef _POSIX_SOURCE #include <linux/capability.h&...

  /* * $ gcc -c selecttest.c -o selecttest.o * $ gcc selecttest.o -o selecttest */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> ...