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| author | Ulrich Drepper <drepper@redhat.com> | 1998-06-19 11:09:14 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1998-06-19 11:09:14 +0000 |
| commit | 977bfd77e6cd739c82491fa9fe4b54b269ea349d (patch) | |
| tree | 46dcc1eed0b51fa64baf075f4d54ae092cc11ba9 /bits/sem.h | |
| parent | dfab448bd8352b372814ca8df0651612296d8e8e (diff) | |
| download | glibc-977bfd77e6cd739c82491fa9fe4b54b269ea349d.tar.gz glibc-977bfd77e6cd739c82491fa9fe4b54b269ea349d.tar.xz glibc-977bfd77e6cd739c82491fa9fe4b54b269ea349d.zip | |
Update.
1998-06-19 Ulrich Drepper <drepper@cygnus.com> * sysdeps/generic/bits/sem.h: Don't define union semun. * sysdeps/unix/sysv/linux/bits/sem.h: Fix typo. * sysdeps/unix/sysv/linux/bits/ipc.h: Remove ipc_kludge definition here. * sysdeps/unix/sysv/linux/msgrcv.c (msgrcv): Add ipc_kludge definition here.
Diffstat (limited to 'bits/sem.h')
| -rw-r--r-- | bits/sem.h | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/bits/sem.h b/bits/sem.h index 8b9f97c62a..cb6657a345 100644 --- a/bits/sem.h +++ b/bits/sem.h @@ -1,4 +1,5 @@ -/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. +/* Copyright (C) 1995, 1996, 1997, 1998 + Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -44,11 +45,18 @@ struct semid_ds unsigned short int sem_nsems; /* number of semaphores in set */ }; -/* Union used for argument for `semctl'. */ -union semun -{ - int val; /* value for SETVAL */ - struct semid_ds *buf; /* buffer for IPC_STAT & IPC_SET */ - unsigned short int *array; /* array for GETALL & SETALL */ - struct seminfo *__buf; /* buffer for IPC_INFO */ - }; +/* The user should define a union like the following to use it for arguments + for `semctl'. + + union semun + { + int val; <= value for SETVAL + struct semid_ds *buf; <= buffer for IPC_STAT & IPC_SET + unsigned short int *array; <= array for GETALL & SETALL + struct seminfo *__buf; <= buffer for IPC_INFO + }; + + Previous versions of this file used to define this union but this is + incorrect. One can test the macro _SEM_SEMUN_UNDEFINED to see whether + one must define the union or not. */ +#define _SEM_SEMUN_UNDEFINED 1 |