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Socket send函数和recv函数详解以及利用select()函数来进行指定时间的阻塞 ...
...送数据时网络断开的话，调用send的进程会接收到一个SIGPIPE信号，进程对该信号的默认处理是进程终止。
recv函数
int recv( SOCKET s, char FAR *buf, int len, int flags );
不论是客户还是服务器应用程序都用recv函数从TCP连接的另一端接收数...
Will strlen be calculated multiple times if used in a loop condition?
...
@Prætorian, good point on the zero length string. I didn't consider that case when I wrote my comment. Does C++ evaluate the i > 0 expression on initial loop entry? If it doesn't, then you're right, the zero length case will...
micro:bit 微控制器教程 · App Inventor 2 中文网
...用场景
1. 机器人控制
2. 传感器数据监控
3. 双向通信
常见问题
Q: 扫描不到 micro:bit 设备？
Q: 连接失败？
Q: 无法接收温度数据？
Q: 控制指令无效...
在线服务的黑天鹅 - 资讯 - 清泛网 - 专注C/C++及内核技术
在线服务的黑天鹅软件随想录（More Joel on Software）有这样一段话提高服务稳定性的最大困难，就是黑天鹅难题（problem of black swans）。这个名词 软件随想录（More Joel on Software）有这样一段话
提高服务稳定性的最大困难，就是...
Bash Templating: How to build configuration files from templates with Bash?
I'm writing a script to automate creating configuration files for Apache and PHP for my own webserver. I don't want to use any GUIs like CPanel or ISPConfig.
...
NGINX to reverse proxy websockets AND enable SSL (wss://)?
...NX config files so you can re-use them (that includes your init.d/nginx script)
yum install pcre pcre-devel openssl openssl-devel and any other necessary libs for building NGINX
Get the nginx_tcp_proxy_module from GitHub here https://github.com/yaoweibin/nginx_tcp_proxy_module and remember the folde...
Nginx 403 error: directory index of [folder] is forbidden
... rewrite ^/(.+)/$ /$1 permanent;
}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
location ~ \.php$ {
fastcgi_split_path_info ^(.+\.php)(/.+)$;
# # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
# # With php5-fpm:
...
Where can I get a list of Ansible pre-defined variables?
...les that we can use in playbooks and template files. For example, the host ip address is ansible_eth0.ipv4.address. Googleing and searching the docs I cound't find a list of all available variables. Would someone list them for me?
...
What is the difference between HTTP_HOST and SERVER_NAME in PHP?
...rver attempts to deduce the hostname by performing a reverse lookup on the IP address. If no port is specified in the ServerName, then the server will use the port from the incoming request. For optimal reliability and predictability, you should specify an explicit hostname and port using the Server...
马无夜草不肥——聊聊程序员接私活的那些坑 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...威客网站等，从【给宝宝取名】到开发一个【和QQ一样的软件】，外包质量参差不齐，对程序猿的劳动不够尊重，经常遇到是否能1000块开发出一个像淘宝那样的网站的问题，自身价值分分钟被贬低，差点被气得一口老血喷涌而出...