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SYNOPSIS
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>

int msgget(key_t key, int msgflg);

DESCRIPTION
The msgget() system call returns the message queue identifier associated with the value of the key argument. A new message queue is
created if key has the value IPC_PRIVATE or key isn’t IPC_PRIVATE, no message queue with the given key key exists, and IPC_CREAT is
specified in msgflg.
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