Write a C program for each of the following system calls $($one per call$)$ which uses the call in a normal matter. Make sure that your program compiles and executes without error. Show your program listings with comments and corresponding output. Run the "strace" program and provide $($only$)$ the output for your system calls. Do not upload source code, but provide the above as text within your PDF$.$

Please check for, and report, any errors. Terminate execution on error $($do not continue running if a call fails$).$

a$)$ time

b$)$ fork

c$)$ sched$\_$getaffinity

The last one is a bit tricky. The man page has a lot of useful information on the parameters. The cpu$\_$set$\_$t is an opaque type: You are not meant to manipulate it directly. There are macros in sched.h which will set$/$clear$/$test members of the set. The man page for CPU$\_$SET$(3)$ describes these. Of particular interest is CPU$\_$ISSET.