snobol4fork - Man Page

-INCLUDE 'fork.sno'

        pid = FORK()

        status = WAITPID([pid][,options])

        pid = GETPID()

        parent = GETPPID()

FORK() creates a process: returns 0 in child, process ID in parent. WAITPID() takes an optional process id to wait for, and returns a string with the process id, status, and additional status about the child. options is a string of optional flags (see the waitpid(2) man page for details):

c

WCONTINUED

h

WNOHANG

t

WTRAPPED

u

WUNTRACED

w

NOWAIT

GETPID() returns the current process ID.  It never fails.

GETPPID() returns the parent process ID.  It never fails.

snobol4(1), fork(2), waitpid(2), getpid(2), getppid(2)

Philip L. Budne

snobol4(1), snolib(3).