4 * Copyright 2001,2004 Develer S.r.l. (http://www.develer.com/)
5 * Copyright 1999,2000,2001 Bernardo Innocenti <bernie@develer.com>
6 * This file is part of DevLib - See README.devlib for information.
9 * \brief Mutually exclusive semaphores.
10 * Shared locking not supported in this implementation.
14 * \author Bernardo Innocenti <bernie@develer.com>
19 *#* Revision 1.6 2005/11/04 16:20:02 bernie
20 *#* Fix reference to README.devlib in header.
22 *#* Revision 1.5 2005/04/11 19:10:28 bernie
23 *#* Include top-level headers from cfg/ subdir.
25 *#* Revision 1.4 2005/01/22 04:21:20 bernie
26 *#* Add handy typedef for struct Semaphore.
28 *#* Revision 1.3 2004/08/25 14:12:09 rasky
29 *#* Aggiornato il comment block dei log RCS
31 *#* Revision 1.2 2004/06/03 11:27:09 bernie
32 *#* Add dual-license information.
34 *#* Revision 1.1 2004/05/23 17:27:00 bernie
35 *#* Import kern/ subdirectory.
42 #include <cfg/compiler.h>
43 #include <mware/list.h>
49 typedef struct Semaphore
51 struct Process *owner;
57 * \name Process synchronization services
60 void sem_init(struct Semaphore *s);
61 bool sem_attempt(struct Semaphore *s);
62 void sem_obtain(struct Semaphore *s);
63 void sem_release(struct Semaphore *s);
66 #endif /* KERN_SEM_H */