Process and Thread

Here are the same elements of process and thread listed in the table.

Process	Thread	Descreiption
fork	pthread_create	create
exit	pthread_exit	exit
waitpid	pthread_join	get quit status
atexit	pthread_cancel_push	register to exit
getpid	pthread_self	get id
abort	pthread_cancel	exit improperly

Process communication: pipe, message, semaphore, shared memory, socket.

Thread communication: mutex, read-write lock, condition variable.