1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Copyright (c) 2015 Linux Test Project 4 */ 5 6 #ifndef SEMUN_H__ 7 #define SEMUN_H__ 8 9 #if defined(__GNU_LIBRARY__) && !defined(_SEM_SEMUN_UNDEFINED) 10 /* union semun is defined by including <sys/sem.h> */ 11 #else 12 /* according to X/OPEN we have to define it ourselves */ 13 union semun { 14 int val; /* value for SETVAL */ 15 struct semid_ds *buf; /* buffer for IPC_STAT, IPC_SET */ 16 unsigned short *array; /* array for GETALL, SETALL */ 17 /* Linux specific part: */ 18 struct seminfo *__buf; /* buffer for IPC_INFO */ 19 }; 20 #endif 21 22 #endif /* SEMUN_H__ */ 23