zhangwenjianqin的专栏

#include #include #include #include #include struct timer_list stimer; //定义定时器static void time_handler(unsigned long data){ //定时器处理函数mod_timer(&stimer, jiffies + HZ);printk("cu

#include #include #include #include MODULE_LICENSE("GPL");int num[2][5] = {{0, 2, 4, 6, 8},{1, 3, 5, 7, 9}};struct semaphore sem_first;struct semaphore sem_second;int thr

#include "stdio.h"#include "stdlib.h"#define PIXPLINE  320typedef struct tagRGBQUAD{     //定义每个像素的数据类型        unsigned char  rgbBlue;        unsigned char  rgbGreen;        unsigned ch

/* main.c */ #include "mytool1.h" #include "mytool2.h" int main(int argc，char **argv) { mytool1_print("hello")； mytool2_print("hello")； }  /* mytool1.h */ #ifndef _MYTOOL_1_H #de

#include "time.h"#include "stdio.h"int main(){time_t seconds;struct tm * timeinfo;short hour,min,second,month,day;int year;time( &seconds );timeinfo = localtime ( &seconds );hour=

#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include //

Linux多线程编程的基本的函数 1线程创建    函数原型：                   #include int pthread_create(pthread_t *restrict tidp,const pthread_attr_t *restrict attr, void *(*start_rtn)(void),void *restrict arg);

#include #include #include #include #include #include #include #include #include #include #include #include MODULE_LICENSE("Dual BSD?GPL");int memory_open(struct inode *ino

/* mtest_dump_vma_list（）：打印出当前进程的各个VMA，这个功能我们简称”listvma” mtest_find_vma()： 找出某个虚地址所在的VMA，这个功能我们简称“findvma” my_follow_page( )：根据页表，求出某个虚地址所在的物理页面，这个功能我们简称”findpage” mtest_write_val(), 在某个地址写上具体

usage: Compiling this file by make and using the following command to insert the mode which the make generated just nowcommand: sudo insmod filename.ko irq=1 devname=myirqThis interrupt shared t

#includelinux/init.h>#includelinux/module.h>#includelinux/sched.h>#includelinux/sem.h>MODULE_LICENSE("Dual BSD/GPL");struct completion my_completion1;struct completion my_completion2;//定

#include #include #include #include #include struct timer_list stimer; //定义定时器int timeout = 10 * HZ;static void time_handler(unsigned long data){ //定时器处理函数，执行该函数获取挂起进程的pid，唤醒该进程struct