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98 lines
3.1 KiB
C
98 lines
3.1 KiB
C
/**
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* @file
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*
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* @ingroup rtems_bsd_machine
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*
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* @brief TODO.
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*/
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/*
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* Copyright (c) 2013 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Dornierstr. 4
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _RTEMS_BSD_MACHINE_RTEMS_BSD_CHUNK_H_
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#define _RTEMS_BSD_MACHINE_RTEMS_BSD_CHUNK_H_
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/*
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* A chunk is a fixed size memory area with some meta information attached to
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* it. This API is used by ZONE(9).
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*/
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#include <sys/cdefs.h>
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#include <rtems/rbtree.h>
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__BEGIN_DECLS
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typedef struct rtems_bsd_chunk_info rtems_bsd_chunk_info;
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typedef struct rtems_bsd_chunk_control rtems_bsd_chunk_control;
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typedef void (*rtems_bsd_chunk_info_ctor)(rtems_bsd_chunk_control *self,
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rtems_bsd_chunk_info *info);
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typedef void (*rtems_bsd_chunk_info_dtor)(rtems_bsd_chunk_control *self,
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rtems_bsd_chunk_info *info);
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struct rtems_bsd_chunk_info {
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rtems_rbtree_node node;
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uintptr_t begin;
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uintptr_t end;
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};
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struct rtems_bsd_chunk_control {
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rtems_rbtree_control chunks;
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uintptr_t info_size;
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rtems_bsd_chunk_info_ctor info_ctor;
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rtems_bsd_chunk_info_dtor info_dtor;
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};
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void rtems_bsd_chunk_init(rtems_bsd_chunk_control *self, uintptr_t info_size,
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rtems_bsd_chunk_info_ctor info_ctor, rtems_bsd_chunk_info_dtor info_dtor);
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void *rtems_bsd_chunk_alloc(rtems_bsd_chunk_control *self,
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uintptr_t chunk_size);
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void rtems_bsd_chunk_free(rtems_bsd_chunk_control *self,
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void *some_addr_in_chunk);
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rtems_bsd_chunk_info *rtems_bsd_chunk_get_info(rtems_bsd_chunk_control *self,
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void *some_addr_in_chunk);
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void *rtems_bsd_chunk_get_begin(rtems_bsd_chunk_control *self,
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void *some_addr_in_chunk);
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void rtems_bsd_chunk_info_dtor_default(rtems_bsd_chunk_control *self,
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rtems_bsd_chunk_info *info);
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__END_DECLS
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#endif /* _RTEMS_BSD_MACHINE_RTEMS_BSD_CHUNK_H_ */
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