xref: /illumos-gate/usr/src/uts/common/sys/refstr.h (revision b819cea2)

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 1999 by Sun Microsystems, Inc.
 * All rights reserved.
 *
 * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
 */

#ifndef _SYS_REFSTR_H
#define	_SYS_REFSTR_H

#ifdef	__cplusplus
extern "C" {
#endif

/*
 * Strings with reference counts.
 * The 'struct refstr' definition is private to the refstr.c module.
 */

typedef struct refstr refstr_t;

#if	defined(_KERNEL) || defined(_FAKE_KERNEL)

refstr_t	*refstr_alloc(const char *);
const char	*refstr_value(refstr_t *);
void		refstr_hold(refstr_t *);
void		refstr_rele(refstr_t *);

#endif	/* defined(_KERNEL) */

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_REFSTR_H */