C programming pthread - UNIX 16.04

You are to write code to help synchronize a professor and his/her students during office hours. The professor, of course, wants to take a nap if no students are around to ask questions; if there are students who want to ask questions, they must synchronize with each other and with the professor so that (i) No more than a certain number of students can be in the office at the same time because the office has limited capacity. (ii) Only one person is speaking at a time. (iii) Each student question is answered by the professor. (iv) No student asks another question before the professor is done answering the previous one. (v) Once a student finishes asking all his/her questions, he/she must leave the office to make room for other students waiting outside the professor’s office. Resources The Pthreads tutorials at [login to view URL] and [login to view URL]~travitch/[login to view URL] are good references to learn Pthreads programming.