[3e29388] | 1 | /** |
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| 2 | * @file |
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| 3 | * |
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| 4 | * @ingroup rtems_bsd_machine |
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| 5 | * |
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| 6 | * @brief TODO. |
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| 7 | */ |
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| 8 | |
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| 9 | /* |
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| 10 | * Copyright (c) 2013 embedded brains GmbH. All rights reserved. |
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| 11 | * |
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| 12 | * embedded brains GmbH |
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| 13 | * Dornierstr. 4 |
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| 14 | * 82178 Puchheim |
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| 15 | * Germany |
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| 16 | * <rtems@embedded-brains.de> |
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| 17 | * |
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| 18 | * Redistribution and use in source and binary forms, with or without |
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| 19 | * modification, are permitted provided that the following conditions |
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| 20 | * are met: |
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| 21 | * 1. Redistributions of source code must retain the above copyright |
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| 22 | * notice, this list of conditions and the following disclaimer. |
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| 23 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 24 | * notice, this list of conditions and the following disclaimer in the |
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| 25 | * documentation and/or other materials provided with the distribution. |
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| 26 | * |
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| 27 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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| 28 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 29 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 30 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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| 31 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 33 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 34 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 35 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 36 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 37 | * SUCH DAMAGE. |
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| 38 | */ |
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| 39 | |
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| 40 | #ifndef _RTEMS_BSD_MACHINE_RTEMS_BSD_CHUNK_H_ |
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| 41 | #define _RTEMS_BSD_MACHINE_RTEMS_BSD_CHUNK_H_ |
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| 42 | |
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| 43 | /* |
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| 44 | * A chunk is a fixed size memory area with some meta information attached to |
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| 45 | * it. This API is used by ZONE(9). |
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| 46 | */ |
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| 47 | |
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| 48 | #include <sys/cdefs.h> |
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| 49 | |
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| 50 | #include <rtems/rbtree.h> |
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| 51 | |
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| 52 | __BEGIN_DECLS |
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| 53 | |
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| 54 | typedef struct rtems_bsd_chunk_info rtems_bsd_chunk_info; |
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| 55 | |
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| 56 | typedef struct rtems_bsd_chunk_control rtems_bsd_chunk_control; |
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| 57 | |
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| 58 | typedef void (*rtems_bsd_chunk_info_ctor)(rtems_bsd_chunk_control *self, |
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| 59 | rtems_bsd_chunk_info *info); |
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| 60 | |
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| 61 | typedef void (*rtems_bsd_chunk_info_dtor)(rtems_bsd_chunk_control *self, |
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| 62 | rtems_bsd_chunk_info *info); |
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| 63 | |
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| 64 | struct rtems_bsd_chunk_info { |
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| 65 | rtems_rbtree_node node; |
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| 66 | uintptr_t begin; |
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| 67 | uintptr_t end; |
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| 68 | }; |
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| 69 | |
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| 70 | struct rtems_bsd_chunk_control { |
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| 71 | rtems_rbtree_control chunks; |
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| 72 | uintptr_t info_size; |
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| 73 | rtems_bsd_chunk_info_ctor info_ctor; |
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| 74 | rtems_bsd_chunk_info_dtor info_dtor; |
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| 75 | }; |
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| 76 | |
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| 77 | void rtems_bsd_chunk_init(rtems_bsd_chunk_control *self, uintptr_t info_size, |
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| 78 | rtems_bsd_chunk_info_ctor info_ctor, rtems_bsd_chunk_info_dtor info_dtor); |
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| 79 | |
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| 80 | void *rtems_bsd_chunk_alloc(rtems_bsd_chunk_control *self, |
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| 81 | uintptr_t chunk_size); |
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| 82 | |
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| 83 | void rtems_bsd_chunk_free(rtems_bsd_chunk_control *self, |
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| 84 | void *some_addr_in_chunk); |
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| 85 | |
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| 86 | rtems_bsd_chunk_info *rtems_bsd_chunk_get_info(rtems_bsd_chunk_control *self, |
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| 87 | void *some_addr_in_chunk); |
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| 88 | |
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| 89 | void *rtems_bsd_chunk_get_begin(rtems_bsd_chunk_control *self, |
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| 90 | void *some_addr_in_chunk); |
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| 91 | |
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| 92 | void rtems_bsd_chunk_info_dtor_default(rtems_bsd_chunk_control *self, |
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| 93 | rtems_bsd_chunk_info *info); |
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| 94 | |
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| 95 | __END_DECLS |
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| 96 | |
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| 97 | #endif /* _RTEMS_BSD_MACHINE_RTEMS_BSD_CHUNK_H_ */ |
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