在Raspberry Pi上通过Web控制交流程序

Question

I have a C program on a Raspberry Pi that waits (in a loop) for an external user input to start or stop the acquisition of data, and I would like to control it in some way from a webserver hosted on the raspberry.

At the moment, to start or stop the acquisition, I am using jquery to write on a txt file that is read in a polling way from the C program.

Are there any other (less ugly) solution to control the program from the webserver?

Answer 1

Yes you can use nodejs and then you'll be able to access FS module and other useful node modules to communicate with your C program , take a look :

• here

• How to Turn Your Raspberry Pi Into a Development Server

• Raspberry Pi and Node.js

Answer 2

Or you can simple use CGI or Fast CGI.

I think this is a good resource to start with: http://www.fastcgi.com/devkit/doc/fastcgi-prog-guide/ch2c.htm

Edit: with this technology you get a better code structure and you use the given resources more efficiently than with a polling loop.