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a27ddece7f
With this approach we can omit using memset() for the newly allocated memory therefore the physical pages are not being used unless touched by the program. This also simplifies the implementation.
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*/
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#ifndef _WASM_MEMORY_H
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#define _WASM_MEMORY_H
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#include "bh_common.h"
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#include "../include/wasm_export.h"
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#include "../interpreter/wasm_runtime.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if WASM_ENABLE_SHARED_MEMORY != 0
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#define GET_LINEAR_MEMORY_SIZE(memory) \
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BH_ATOMIC_32_LOAD(memory->memory_data_size)
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#define SET_LINEAR_MEMORY_SIZE(memory, size) \
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BH_ATOMIC_32_STORE(memory->memory_data_size, size)
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#else
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#define GET_LINEAR_MEMORY_SIZE(memory) memory->memory_data_size
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#define SET_LINEAR_MEMORY_SIZE(memory, size) memory->memory_data_size = size
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#endif
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bool
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wasm_runtime_memory_init(mem_alloc_type_t mem_alloc_type,
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const MemAllocOption *alloc_option);
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void
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wasm_runtime_memory_destroy();
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unsigned
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wasm_runtime_memory_pool_size();
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void
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wasm_runtime_set_mem_bound_check_bytes(WASMMemoryInstance *memory,
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uint64 memory_data_size);
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void
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wasm_runtime_set_enlarge_mem_error_callback(
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const enlarge_memory_error_callback_t callback, void *user_data);
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void
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wasm_deallocate_linear_memory(WASMMemoryInstance *memory_inst);
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int
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wasm_allocate_linear_memory(uint8 **data, bool is_shared_memory,
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uint64 num_bytes_per_page, uint64 init_page_count,
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uint64 max_page_count, uint64 *memory_data_size);
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#ifdef __cplusplus
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}
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#endif
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#endif /* end of _WASM_MEMORY_H */
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