Reference: semget
Author: Ellen Siever, Stephen Spainhour & Nathan Patwardhan
Date: 1999-07-02T01:37:36Z

#

| Chapter 5 Function Reference |

## 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.

Reference: semctl |  | Reference: semop