CS360 Final Exam. Grading for Question 4

December 13, 1997

18 points

Part one was 15 points, broken down into the following: 
  1 point:  sock = server_socket("games.cs.utk.edu")
  1 point:  Initialize a data structure to keep track of the high scores
  1 point:  Initialize a mutex
  2 points: Have a thread that calls accept_connection and then forks
            off a thread to service the connection
  2 points: Read 34 bytes from the socket
  2 points: Insert the high score into the data structure
  2 points: Print the data structure to the socket
  2 points: Hold the mutex while inserting the high score and printing
            the data structure
  2 points: You got varying number of these for getting details correct
Here are some of the things that pretty much everyone did wrong. I didn't take off for it: 
  - not closing the fd
  - not freeing strings when they get kicked out of the rb-tree
  - not mallocing the thread_t
  - not mallocing fdp -- if you just pass &fd, then you're going to  
        have some real problems.
  - not allowing for read/write returning less items than you asked for.
For part 2 you got 2 points for saying what the problem was, and one point for specifying a good solution.

Histogram of scores