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      1 /*	$NetBSD: kmem.h,v 1.12 2021/01/24 17:29:11 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c)2006 YAMAMOTO Takashi,
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _SYS_KMEM_H_
     30 #define	_SYS_KMEM_H_
     31 
     32 #include <sys/types.h>
     33 
     34 typedef unsigned int km_flag_t;
     35 
     36 void	kmem_init(void);
     37 size_t	kmem_roundup_size(size_t);
     38 
     39 void *	kmem_alloc(size_t, km_flag_t);
     40 void *	kmem_zalloc(size_t, km_flag_t);
     41 void	kmem_free(void *, size_t);
     42 
     43 void *	kmem_intr_alloc(size_t, km_flag_t);
     44 void *	kmem_intr_zalloc(size_t, km_flag_t);
     45 void	kmem_intr_free(void *, size_t);
     46 
     47 char *	kmem_asprintf(const char *, ...) __printflike(1, 2);
     48 
     49 char *	kmem_strdupsize(const char *, size_t *, km_flag_t);
     50 #define kmem_strdup(s, f)	kmem_strdupsize((s), NULL, (f))
     51 char *	kmem_strndup(const char *, size_t, km_flag_t);
     52 void	kmem_strfree(char *);
     53 
     54 void *	kmem_tmpbuf_alloc(size_t, void *, size_t, km_flag_t);
     55 void	kmem_tmpbuf_free(void *, size_t, void *);
     56 
     57 /*
     58  * km_flag_t values:
     59  */
     60 #define	KM_SLEEP	0x00000001	/* can sleep */
     61 #define	KM_NOSLEEP	0x00000002	/* don't sleep */
     62 
     63 #endif /* !_SYS_KMEM_H_ */
     64