70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
/*
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* Copyright(c) 2012-2018 Intel Corporation
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* SPDX-License-Identifier: BSD-3-Clause-Clear
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*/
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#ifndef UTILS_ALLOCATOR_H_
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#define UTILS_ALLOCATOR_H_
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/**
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* @file utils_allocator.h
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* @brief OCF memory reallocator
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*/
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void ocf_realloc_init(void **mem, size_t *limit);
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int ocf_realloc(void **mem, size_t size, size_t count, size_t *limit);
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int ocf_realloc_cp(void **mem, size_t size, size_t count, size_t *limit);
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/**
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* @brief Initialize memory pointer and limit before reallocator usage
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*
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* @param[inout] mem - Pointer to the memory
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* @param[inout] limit - Variable used internally by reallocator and indicates
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* last allocation size
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*/
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#define OCF_REALLOC_INIT(mem, limit) \
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ocf_realloc_init((void **)mem, limit)
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/**
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* @brief De-Initialize memory pointer and limit, free memory
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*
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* @param[inout] mem - Pointer to the memory
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* @param[inout] limit - Variable used internally by reallocator and indicates
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* last allocation size
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*/
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#define OCF_REALLOC_DEINIT(mem, limit) \
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ocf_realloc((void **)mem, 0, 0, limit)
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/**
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* @brief Reallocate referenced memory if it is required.
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*
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* @param[inout] mem - Pointer to the memory
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* @param[in] size - Size of particular element
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* @param[in] count - Counts of element
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* @param[inout] limit - Variable used internally by reallocator and indicates
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* last allocation size
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*
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* @return 0 - Reallocation successful, Non zero - Realocation ERROR
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*/
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#define OCF_REALLOC(mem, size, count, limit) \
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ocf_realloc((void **)mem, size, count, limit)
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/**
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* @brief Reallocate referenced memory if it is required and copy old content
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* into new memory space, new memory space is set to '0'
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*
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* @param[inout] mem - Pointer to the memory
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* @param[in] size - Size of particular element
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* @param[in] count - Counts of element
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* @param[inout] limit - Variable used internally by reallocator and indicates
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* last allocation size
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*
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* @return 0 - Reallocation successful, Non zero - Realocation ERROR
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*/
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#define OCF_REALLOC_CP(mem, size, count, limit) \
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ocf_realloc_cp((void **)mem, size, count, limit)
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#endif /* UTILS_ALLOCATOR_H_ */
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