Akos Kiss
66c94b7d9b
Make the internal heap and pools memory usage statistics APIs more similar: how the print functions are named, where they are implemented, and which parts of them are guarded by `MEM_STATS`. Also, adapt unit tests to the changes. JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/* Copyright 2014-2016 Samsung Electronics Co., Ltd.
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* Copyright 2016 University of Szeged.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/** \addtogroup mem Memory allocation
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* @{
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*
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* \addtogroup heap Heap
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* @{
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*/
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/**
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* Heap allocator interface
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*/
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#ifndef MEM_HEAP_H
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#define MEM_HEAP_H
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#include "jrt.h"
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extern void mem_heap_init (void);
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extern void mem_heap_finalize (void);
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extern void *mem_heap_alloc_block (const size_t);
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extern void mem_heap_free_block (void *, const size_t);
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extern void *mem_heap_alloc_block_store_size (size_t);
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extern void mem_heap_free_block_size_stored (void *);
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extern uintptr_t mem_heap_compress_pointer (const void *);
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extern void *mem_heap_decompress_pointer (uintptr_t);
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extern bool mem_is_heap_pointer (const void *);
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#ifdef MEM_STATS
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/**
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* Heap memory usage statistics
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*/
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typedef struct
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{
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size_t size; /**< size */
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size_t allocated_bytes; /**< currently allocated bytes */
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size_t peak_allocated_bytes; /**< peak allocated bytes */
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size_t global_peak_allocated_bytes; /**< non-resettable peak allocated bytes */
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size_t waste_bytes; /**< bytes waste due to blocks filled partially
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and due to block headers */
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size_t peak_waste_bytes; /**< peak bytes waste */
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size_t global_peak_waste_bytes; /**< non-resettable peak bytes waste */
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size_t skip_count;
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size_t nonskip_count;
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size_t alloc_count;
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size_t alloc_iter_count;
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size_t free_count;
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size_t free_iter_count;
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} mem_heap_stats_t;
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extern void mem_heap_get_stats (mem_heap_stats_t *);
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extern void mem_heap_stats_reset_peak (void);
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extern void mem_heap_stats_print (void);
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#endif /* MEM_STATS */
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#ifdef JERRY_VALGRIND_FREYA
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#ifdef JERRY_VALGRIND
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#error Valgrind and valgrind-freya modes are not compatible.
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#endif
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extern void mem_heap_valgrind_freya_mempool_request (void);
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#define MEM_HEAP_VALGRIND_FREYA_MEMPOOL_REQUEST() mem_heap_valgrind_freya_mempool_request ()
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#else /* JERRY_VALGRIND_FREYA */
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#define MEM_HEAP_VALGRIND_FREYA_MEMPOOL_REQUEST()
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#endif /* JERRY_VALGRIND_FREYA */
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/**
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* Define a local array variable and allocate memory for the array on the heap.
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*
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* If requested number of elements is zero, assign NULL to the variable.
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*
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* Warning:
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* if there is not enough memory on the heap, shutdown engine with ERR_OUT_OF_MEMORY.
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*/
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#define MEM_DEFINE_LOCAL_ARRAY(var_name, number, type) \
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{ \
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size_t var_name ## ___size = (size_t) (number) * sizeof (type); \
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type *var_name = (type *) (mem_heap_alloc_block (var_name ## ___size));
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/**
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* Free the previously defined local array variable, freeing corresponding block on the heap,
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* if it was allocated (i.e. if the array's size was non-zero).
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*/
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#define MEM_FINALIZE_LOCAL_ARRAY(var_name) \
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if (var_name != NULL) \
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{ \
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JERRY_ASSERT (var_name ## ___size != 0); \
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\
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mem_heap_free_block (var_name, var_name ## ___size); \
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} \
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else \
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{ \
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JERRY_ASSERT (var_name ## ___size == 0); \
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} \
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}
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/**
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* @}
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* @}
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*/
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#endif /* !MEM_HEAP_H */
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