I am doing a project. But I found in the source code there are so many file descriptor leftunclosed. The first glance of it, I thought this is not good. After I googled, someone says,if there are some buffer behind this fd, don't close it or something bad will happen. I am not sure about this. So some can give some advice?Should the file descriptor be closed once used? Are there any rules about usage of file descriptor?
Problem about file descriptor
file descriptors