/*
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* Copyright (C) 2011 Philippe Gerum <rpm@xenomai.org>.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*/
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#ifndef _COPPERPLATE_SEMOBJ_H
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#define _COPPERPLATE_SEMOBJ_H
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#include <boilerplate/compiler.h>
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#include <copperplate/reference.h>
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struct semobj_waitentry {
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pid_t pid;
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char name[32];
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};
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#ifdef CONFIG_XENO_COBALT
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#include <semaphore.h>
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struct semobj_corespec {
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sem_t sem;
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};
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#else /* CONFIG_XENO_MERCURY */
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#include <copperplate/syncobj.h>
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struct semobj_corespec {
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struct syncobj sobj;
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int flags;
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int value;
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};
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#endif /* CONFIG_XENO_MERCURY */
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struct semobj {
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struct semobj_corespec core;
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fnref_type(void (*)(struct semobj *smobj)) finalizer;
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};
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#define SEMOBJ_PRIO 0x1
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#define SEMOBJ_PULSE 0x2
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#define SEMOBJ_WARNDEL 0x4
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#ifdef __cplusplus
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extern "C" {
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#endif
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int semobj_init(struct semobj *smobj,
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int flags, int value,
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fnref_type(void (*)(struct semobj *smobj)) finalizer);
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int semobj_destroy(struct semobj *smobj);
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void semobj_uninit(struct semobj *smobj);
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int semobj_post(struct semobj *smobj);
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int semobj_broadcast(struct semobj *smobj);
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int semobj_wait(struct semobj *smobj,
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const struct timespec *timeout) __must_check;
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int semobj_getvalue(struct semobj *smobj, int *sval);
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int semobj_inquire(struct semobj *smobj, size_t waitsz,
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struct semobj_waitentry *waitlist,
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int *val_r);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _COPPERPLATE_SEMOBJ_H */
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