Code samples from CSE 3320

The following programs are provided to demonstrate concepts covered in CSE 3320.

Process related programs

fork.c Demonstrates a simple forking of a child process
waitpid.c Demonstrates how to wait on a specific child process and also determine why the child process died
exec.c Fork a child and then call exec to turn the child into an ls process
thread.c Spawn a thread

pipe.c Open a pipe between two processes and write a string from one to the other
pipe_redirect.c Open a pipe between two processes and redirect stdin and stdout
shared_mem.c Setup a shared memory segment and read or write using it
memmap.c Memory map a file and read from it
named_listener.c Create a listener on a named pipe
named_sender.c Create a writer to a named pipe
semaphore.c Guard a critical seciton using a semaphore

sigint.c Registering a signal handler, with signal(), to catch a ctrl-c (SIGINT)
sigint_sigaction_block.c Registering a signal handler, with sigaction(), to catch a ctrl-c (SIGINT). Also demonstrates masking (blocking) signals
sigint_signal_block.c Registering a signal handler, with signal(), to catch a ctrl-c (SIGINT). Also demonstrates masking (blocking) signals
sigqueue_example.c Send a signal to a process using sigqueue()
alarm.c Set a signal handler for SIGALRM
multiple_signals.c Set a single signal handler for multiple signals
block_signal.c Block signals with sigprocmask()