10 #define __NEED_ssize_t
12 #include <bits/alltypes.h>
14 typedef unsigned long msgqnum_t;
15 typedef unsigned long msglen_t;
19 struct ipc_perm msg_perm;
29 #define MSG_NOERROR 010000
31 int msgctl (int, int, struct msqid_ds *);
32 int msgget (key_t, int);
33 int msgrcv (int, void *, size_t, long, int);
34 int msgsnd (int, const void *, size_t, int);