CS520
Spring 2016
Laboratory 7
Friday March 25
The lab must be submitted prior to noon on Sunday March 27.


This lab cannot be done in 50 minutes. Therefore, you should start this lab before coming to lab.

Implement the Reentrant Lock synchronizer described in the Program 4 specification.

There are some tests for reentrant lock available in ~cs520/public/prog4/testLock.c. However, you may want to use your own tests initially.

Use the valgrind memcheck facility to validate that you properly free all allocated memory blocks. To run valgrind with testLock: valgrind --leak-check=yes testLock.

Also run the program using the valgrind helgrind facility to check for threading errors: valgrind --tool=helgrind testLock.

You should submit all the source code for your assignment in one file called sync.c.

To turn in this laboratory, type:

% ~cs520/bin/submit lab7 sync.c

Submissions can be checked by typing:

% ~cs520/bin/scheck lab7

Remember that there are no late submissions of labs. Submit what you have prior to noon on Sunday March 27.


Last modified on March 20, 2016.

Comments and questions should be directed to pjh@cs.unh.edu