FreeBSD/Linux Kernel Cross Reference
sys/sys/kmem.h

     /*      $NetBSD: kmem.h,v 1.12 2021/01/24 17:29:11 thorpej Exp $        */
     
     /*-
      * Copyright (c)2006 YAMAMOTO Takashi,
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     */
    
    #ifndef _SYS_KMEM_H_
    #define _SYS_KMEM_H_
    
    #include <sys/types.h>
    
    typedef unsigned int km_flag_t;
    
    void    kmem_init(void);
    size_t  kmem_roundup_size(size_t);
    
    void *  kmem_alloc(size_t, km_flag_t);
    void *  kmem_zalloc(size_t, km_flag_t);
    void    kmem_free(void *, size_t);
    
    void *  kmem_intr_alloc(size_t, km_flag_t);
    void *  kmem_intr_zalloc(size_t, km_flag_t);
    void    kmem_intr_free(void *, size_t);
    
    char *  kmem_asprintf(const char *, ...) __printflike(1, 2);
    
    char *  kmem_strdupsize(const char *, size_t *, km_flag_t);
    #define kmem_strdup(s, f)       kmem_strdupsize((s), NULL, (f))
    char *  kmem_strndup(const char *, size_t, km_flag_t);
    void    kmem_strfree(char *);
    
    void *  kmem_tmpbuf_alloc(size_t, void *, size_t, km_flag_t);
    void    kmem_tmpbuf_free(void *, size_t, void *);
    
    /*
     * km_flag_t values:
     */
    #define KM_SLEEP        0x00000001      /* can sleep */
    #define KM_NOSLEEP      0x00000002      /* don't sleep */
    
    #endif /* !_SYS_KMEM_H_ */

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