Note: Compiling with mutex lock shouldn't cause seg fault

Atomicity violation bug can be avoided by using mutex

Add break

Simple producer consumer buffer realization using cv

Implements join using cv

Note on demonstrating a basic cv

Naive cv without signals

fix: missing close(fd)

symlink

improved error check

delete links-test if exist

check for link count

creates multiple hard links of file0

create links-test directory to put files and their hard links

hard link program-initiate