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screen and emacsscreen and emacsTable of Contents1 screen 和 emacs1.1 screen 安装1.2 emacs install1.3 screen configure1 screen 和 emacsscreen 是 linux 一个工具，用来管理远程连是一个神器哦！如果screen 遇 到 emacs,这样本地编辑，远程调试就不怕了！screen 保存当时的连接1.1 screen 安装apt-get install screen1.2 emacs install这我就不写了，好多种安装方法。1.3 screen configur 阅读全文
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今天发现要更新内核，果断更新！ 结果出现一个这样的bug-关于内核空间不足的问题。具体的报告参考如下https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/798414于是我们考虑考虑清除一部分内核。命令如下：1 uname -a2 dpkg --get-selections|grep linux3 sudo apt-get remove linux-image-3.0.17-generic 阅读全文
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我觉得这个线程设计思路很酷，通过代理实现多个线程初始化和对应的管理。所以我自己话一点时间，自己仿写一个类是的代码，只是把功能化简了。thread.h#include <pthread.h>#include <unistd.h>#include <stdlib.h>#include <string.h>#include <assert.h>typedef void *(* ThreadFunc) (void *);extern void thread_addThreads(unsigned int uint_sum, ThreadFun 阅读全文
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前几天装上了ubuntu 12.10 ，提示更新！ 果断更新，结果无线上不去了！处理方法参考这个http://askubuntu.com/questions/265553/broadcom-corp-bcm4313-wirelss-not-detected-in-ubuntu-12-10大概意思就是删除原来的驱动后，重装一下～ 阅读全文
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first i write the a program like#include <stdio.h>#include <stdlib.h>typedef struct a{ int a; int b[];}type_a;// first i disagree the code will running ok , but it turn out i wrongint main(void){ type_a * p = (type_a *) malloc(sizeof(type_a) + 100 * sizoef(int)); free(p); return 0;}like 阅读全文
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the article is about talking something about linux ,c use the mysql some feeling. this day , i read the book < beginning linux program>, about the program about using the mysql 1. i think when we are about to use the mysql database api , we should wrap some api. 2. and design the program must 阅读全文
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for example, memset( &result,0,sizeof(result)); in this function, I always forgot & .not end .add some forgot problem.when you write the for loop and if you should check the NULL is == or !=because it will let you program overflow. the linux may say segment fault. so you should check the bou 阅读全文
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first ,I'am chinese . my english is poor. But I am in the linux .the marco use to list :1. replace the const number called magic number2. like C++ inline funciton,for example:#define IS_LEAR_YEAR(y) y % 4 == 0 && y % 100 != 0 || y % 400 == 03.uses to debug#define DBGprint(...) printf(&qu 阅读全文
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i copy a text about the emacs command , in case that I forgot the command.i just copy , i do not write it by myself.C = ControlM = Meta = Alt|EscBasicsC-x C-f "find" file i.e. open/create a file in bufferC-x C-s save the fileC-x C-w write the text to an alternate nameC-x C-v find alternate 阅读全文