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Call Go functions from C

...unction that performs a pretty heavy task: It reads a list of files from a USB device. This can take a while, so we want our app to be notified of its progress. We can do this by passing in a function pointer that we defined in our program. It simply displays some progress info to the user whenever ...
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Is calculating an MD5 hash less CPU intensive than SHA family functions?

...ider that a recent hard disk will run at about 100 MB/s, and anything over USB will top below 60 MB/s. Even though SHA-256 appears "slow" here, it is fast enough for most purposes. Note that OpenSSL includes a 32-bit implementation of SHA-512 which is quite faster than my code (but not as fast as t...
https://www.tsingfun.com/it/tech/1329.html 

廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术

...通过负载均衡设备对外提供WEB服务。怎么保证三台服务器中的数据一样呢? 1.1最开始的解决方案: 在其中一台服务器上开启NFS服务,其他两台服务器挂着NFS目录。所有非结构化和可变数据放在NFS目录里面。这样一来...
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What is the difference between a port and a socket?

...ical connection point for peripheral devices such as serial, parallel, and USB ports. The term port also refers to certain Ethernet connection points, such as those on a hub, switch, or router. ref http://compnetworking.about.com/od/basicnetworkingconcepts/l/bldef_port.htm ref http://compnetworkin...
https://www.tsingfun.com/it/tech/749.html 

从Code Review 谈如何做技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...时审查数百行程序码的审查速度太快,可能无法找到程序中的问题。代码审查一般可以找到及移除约65%的错误,最高可以到85%。 也有研究针对代码审查找到的缺陷类型进行分析。代码审查找到的缺陷中,有75%是和计算机安全隐...
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Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...: 单引号里的任何字符都会原样输出,单引号字符串中的变量是无效的 单引号字串中不能出现单引号(对单引号使用转义符后也不行) 双引号 your_name='qinjx' str="Hello, I know your are \"$your_name\"! \n" 双引号里可以有变量 ...
https://www.tsingfun.com/it/cpp/650.html 

NASM x86汇编入门指南 - C/C++ - 清泛网 - 专注C/C++及内核技术

...过ld链接脚本的处理并进行重定位之后,把每个目标文件中的各个section 放到可执行文件的一个section中,这个section我们通常叫它段(例如.text节重定位之后生成.text段,.data节重定位生成.data段等等),详细请参考ld manual .data section(节...
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libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术

...理下载文件。CURLOPT_WRITEDATA 用于表明CURLOPT_WRITEFUNCTION函数中的stream指针的来源。 3. CURLOPT_HEADERFUNCTION,CURLOPT_HEADERDATA 回调函数原型为 size_t function( void *ptr, size_t size,size_t nmemb, void *stream); libcurl一旦接收到http 头部数据后将调...
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What is the purpose of the -m switch?

...leHTTPServer. Really handy when I need to share some files without using a usb flash drive. – arifwn Sep 30 '11 at 12:18 ...
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Mozilla PDF.js:PDF在线预览 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...pdf有关的参数 第一个问题: 我们只用修改viewer.js文件中的pdf路径参数即可: var DEFAULT_URL = '09.pdf'; 如果pdf文件与viewer.html不在一层目录中,改成相对路径即可: var DEFAULT_URL = ' ../doc/ 09.pdf'; 第二个问题: viewer.html可以通...