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Diffstat (limited to 'contrib/sendmail/include/sm/sem.h')
| -rw-r--r-- | contrib/sendmail/include/sm/sem.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/contrib/sendmail/include/sm/sem.h b/contrib/sendmail/include/sm/sem.h new file mode 100644 index 0000000..3ac0bc6 --- /dev/null +++ b/contrib/sendmail/include/sm/sem.h @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2000-2001, 2005, 2008 Sendmail, Inc. and its suppliers. + * All rights reserved. + * + * By using this file, you agree to the terms and conditions set + * forth in the LICENSE file which can be found at the top level of + * the sendmail distribution. + * + * $Id: sem.h,v 1.10 2008/05/30 16:26:39 ca Exp $ + */ + +#ifndef SM_SEM_H +# define SM_SEM_H 1 + +#include <sm/gen.h> + +/* key for semaphores */ +# define SM_SEM_KEY (41L) +# define SM_SEM_NO_ID (-1) +# define SM_NO_SEM(id) ((id) < 0) + +# if SM_CONF_SEM > 0 +# include <sys/types.h> +# include <sys/ipc.h> +# include <sys/sem.h> + +# if SM_CONF_SEM == 2 +union semun +{ + int val; + struct semid_ds *buf; + ushort *array; +}; +# endif /* SM_CONF_SEM == 2 */ + +# ifndef SEM_A +# define SEM_A 0200 +# endif /* SEM_A */ +# ifndef SEM_R +# define SEM_R 0400 +# endif /* SEM_R */ + +# define SM_NSEM 1 + +extern int sm_sem_start __P((key_t, int, int, bool)); +extern int sm_sem_stop __P((int)); +extern int sm_sem_acq __P((int, int, int)); +extern int sm_sem_rel __P((int, int, int)); +extern int sm_sem_get __P((int, int)); +extern int sm_semsetowner __P((int, uid_t, gid_t, mode_t)); + +# else /* SM_CONF_SEM > 0 */ +# define sm_sem_start(key, nsem, semflg, owner) 0 +# define sm_sem_stop(semid) 0 +# define sm_sem_acq(semid, semnum, timeout) 0 +# define sm_sem_rel(semid, semnum, timeout) 0 +# define sm_sem_get(semid, semnum) 0 +# endif /* SM_CONF_SEM > 0 */ + +#endif /* ! SM_SEM_H */ |
