June 2002
Beginner
759 pages
80h 42m
English
semget
semget key, nsems, size, flags
Calls the System V IPC system call semget(2). The function returns the
semaphore ID, or the undefined value if there is an error. On
error, it puts the error code into $!. Before calling, you should
say:
require "ipc.ph"; require "sem.ph";
This function is available only on machines supporting System V IPC.