projects / ceph.git / blame
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|---|---|---|
| 9f95a23c TL |
1 | /* |
| 2 | * Copyright(c) 2012-2018 Intel Corporation | |
| 3 | * SPDX-License-Identifier: BSD-3-Clause-Clear | |
| 4 | */ | |
| 5 | ||
| f67539c2 TL |
6 | #ifndef UTILS_REALLOC_H_ |
| 7 | #define UTILS_REALLOC_H_ | |
| 9f95a23c TL |
8 | |
| 9 | /** | |
| f67539c2 TL |
10 | * @file utils_realloc.h |
| 11 | * @brief OCF realloc | |
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12 | */ |
| 13 | ||
| 14 | void ocf_realloc_init(void **mem, size_t *limit); | |
| 15 | ||
| 16 | int ocf_realloc(void **mem, size_t size, size_t count, size_t *limit); | |
| 17 | ||
| 18 | int ocf_realloc_cp(void **mem, size_t size, size_t count, size_t *limit); | |
| 19 | ||
| 20 | /** | |
| 21 | * @brief Initialize memory pointer and limit before reallocator usage | |
| 22 | * | |
| 23 | * @param[inout] mem - Pointer to the memory | |
| 24 | * @param[inout] limit - Variable used internally by reallocator and indicates | |
| 25 | * last allocation size | |
| 26 | */ | |
| 27 | #define OCF_REALLOC_INIT(mem, limit) \ | |
| 28 | ocf_realloc_init((void **)mem, limit) | |
| 29 | ||
| 30 | /** | |
| 31 | * @brief De-Initialize memory pointer and limit, free memory | |
| 32 | * | |
| 33 | * @param[inout] mem - Pointer to the memory | |
| 34 | * @param[inout] limit - Variable used internally by reallocator and indicates | |
| 35 | * last allocation size | |
| 36 | */ | |
| 37 | #define OCF_REALLOC_DEINIT(mem, limit) \ | |
| 38 | ocf_realloc((void **)mem, 0, 0, limit) | |
| 39 | ||
| 40 | /** | |
| 41 | * @brief Reallocate referenced memory if it is required. | |
| 42 | * | |
| 43 | * @param[inout] mem - Pointer to the memory | |
| 44 | * @param[in] size - Size of particular element | |
| 45 | * @param[in] count - Counts of element | |
| 46 | * @param[inout] limit - Variable used internally by reallocator and indicates | |
| 47 | * last allocation size | |
| 48 | * | |
| 49 | * @return 0 - Reallocation successful, Non zero - Realocation ERROR | |
| 50 | */ | |
| 51 | #define OCF_REALLOC(mem, size, count, limit) \ | |
| 52 | ocf_realloc((void **)mem, size, count, limit) | |
| 53 | ||
| 54 | /** | |
| 55 | * @brief Reallocate referenced memory if it is required and copy old content | |
| 56 | * into new memory space, new memory space is set to '0' | |
| 57 | * | |
| 58 | * @param[inout] mem - Pointer to the memory | |
| 59 | * @param[in] size - Size of particular element | |
| 60 | * @param[in] count - Counts of element | |
| 61 | * @param[inout] limit - Variable used internally by reallocator and indicates | |
| 62 | * last allocation size | |
| 63 | * | |
| 64 | * @return 0 - Reallocation successful, Non zero - Realocation ERROR | |
| 65 | */ | |
| 66 | #define OCF_REALLOC_CP(mem, size, count, limit) \ | |
| 67 | ocf_realloc_cp((void **)mem, size, count, limit) | |
| 68 | ||
| f67539c2 | 69 | #endif /* UTILS_REALLOC_H_ */ |