搜索结果
找到约 41 项符合
LOCK 的查询结果
按分类筛选
数据库系统 About: hamsterdb is a database engine written in ANSI C. It supports a B+Tree index structure, uses
About:
hamsterdb is a database engine written in ANSI C. It supports a B+Tree index structure, uses memory mapped I/O (if available), supports cursors, and can create in-memory databases.
Release focus: Major feature enhancements
Changes:
This release comes with many changes and new features. It c ...
其他 学会对文件的记录锁定
学会对文件的记录锁定，及解锁。#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
int main()
{
int fd
int i
struct {
char name[20]
uint ID
int age
} myrec
fd =open("name", O_RDWR|O_CREAT, 0755)
if (fd == -1) return -1
printf("Input your name:") scanf("％s", myrec.name)
...
其他书籍 If you have programming experience and a familiarity with C--the dominant language in embedded syste
If you have programming experience and a familiarity with C--the dominant language in embedded systems--Programming Embedded Systems, Second Edition is exactly what you need to get started with embedded software. This software is ubiquitous, hidden away inside our watches, DVD players, mobile phones ...
单片机开发 SD卡驱动 SD_CARD_TIMEOUT 当一个SD卡的操作超出时限
SD卡驱动
SD_CARD_TIMEOUT 当一个SD卡的操作超出时限，将导致返回错误和该标记被置位
SD_CARD_EXIST 当卡槽内插入了合适的卡体，不管是什么卡，都会使该位被设置；
SD_CARD_WRITE_PROTECT 当卡体的写保护开关被 LOCK 时，则该位被设置；
SD_CARD_READY 当卡槽内的卡被正确识别，并可以随时访问时，则该位被设置；
SD_C ...
电子书籍 BlackBerry Hacks will enhance your mobile computing with great tips and tricks. You ll learn that th
BlackBerry Hacks will enhance your mobile computing with great tips and tricks. You ll learn that the BlackBerry is capable of things you never thought possible, and you ll learn how to make it an even better email and web workhorse:
Get the most out of the built-in applications
Take control of em ...
MTK MTK加密字库读手机密码的好平台
MTK加密字库读手机密码的好平台，只要打开平台手机开机自动联机点SHOW PHONE LOCK 即可读出手机密码
操作系统开发 A user-space device driver can do many of the things that kernel drivers can t, such as perform a lo
A user-space device driver can do many of the things that kernel drivers can t, such as perform a long-running computation, block while waiting for an event, or read files from the file system. Unlike kernel drivers, a user-space device driver can use other device drivers--that is, access the networ ...
Java编程 java 线程 静态锁
java 线程 静态锁，对象锁， synchronized 是锁方法还是锁对象？还是锁类？如何实现？？
部分代码如下，
public static Object lock=new Object() //静态锁，锁类，不是锁对象了！！所以两个线程同时 运行两个 TestThread 的execute（
），也可以同步！！！
public void execute(){ //
synchronize ...
技术资料 单片机电子密码锁设计，内含工程文件、源码文件及电路图
基于单片机的密码锁设计，内含工程文件和源码文件以及电路图#include "config.h"&nbsp;void main(){&nbsp;&nbsp;&nbsp; LCD_Initial();&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;//lcd初始化&nbsp;&nbsp;&nbsp; init_sys(); ...