The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*      $NetBSD: specificdata.h,v 1.4 2008/04/28 20:24:11 martin Exp $  */
    2 
    3 /*-
    4  * Copyright (c) 2006 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Jason R. Thorpe.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 #ifndef _SYS_SPECIFICDATA_H_
   33 #define _SYS_SPECIFICDATA_H_
   34 
   35 #include <sys/mutex.h>
   36 
   37 typedef unsigned int specificdata_key_t;
   38 typedef void (*specificdata_dtor_t)(void *);
   39 typedef struct specificdata_domain *specificdata_domain_t;
   40 typedef struct specificdata_container *specificdata_container_t;
   41 
   42 typedef struct {
   43         specificdata_container_t specdataref_container;
   44         kmutex_t specdataref_lock;
   45 } specificdata_reference;
   46 
   47 specificdata_domain_t   specificdata_domain_create(void);
   48 void                    specificdata_domain_delete(specificdata_domain_t);
   49 
   50 int     specificdata_key_create(specificdata_domain_t,
   51                                 specificdata_key_t *, specificdata_dtor_t);
   52 void    specificdata_key_delete(specificdata_domain_t, specificdata_key_t);
   53 
   54 int     specificdata_init(specificdata_domain_t, specificdata_reference *);
   55 void    specificdata_fini(specificdata_domain_t, specificdata_reference *);
   56 
   57 void *  specificdata_getspecific(specificdata_domain_t,
   58                                  specificdata_reference *, specificdata_key_t);
   59 void *  specificdata_getspecific_unlocked(specificdata_domain_t,
   60                                           specificdata_reference *,
   61                                           specificdata_key_t);
   62 void    specificdata_setspecific(specificdata_domain_t,
   63                                  specificdata_reference *, specificdata_key_t,
   64                                  void *);
   65 int     specificdata_setspecific_nowait(specificdata_domain_t,
   66                                         specificdata_reference *,
   67                                         specificdata_key_t, void *);
   68 
   69 #endif /* _SYS_SPECIFICDATA_H_ */

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