mirror of
https://github.com/jerryscript-project/jerryscript.git
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166 lines
4.1 KiB
C++
166 lines
4.1 KiB
C++
/* Copyright 2014-2015 Samsung Electronics Co., Ltd.
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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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/**
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* Allocator implementation
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*/
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#include "jrt.h"
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#include "jrt-libc-includes.h"
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#include "mem-allocator.h"
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#include "mem-heap.h"
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#include "mem-poolman.h"
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#define MEM_ALLOCATOR_INTERNAL
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#include "mem-allocator-internal.h"
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/**
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* The 'try to give memory back' callback
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*/
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static mem_try_give_memory_back_callback_t mem_try_give_memory_back_callback = NULL;
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/**
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* Initialize memory allocators.
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*/
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void
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mem_init (void)
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{
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mem_heap_init ();
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mem_pools_init ();
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} /* mem_init */
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/**
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* Finalize memory allocators.
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*/
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void
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mem_finalize (bool is_show_mem_stats) /**< show heap memory stats
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before finalization? */
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{
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mem_pools_finalize ();
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#ifdef MEM_STATS
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if (is_show_mem_stats)
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{
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mem_stats_print ();
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}
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#else /* MEM_STATS */
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(void) is_show_mem_stats;
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#endif /* !MEM_STATS */
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mem_heap_finalize ();
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} /* mem_finalize */
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/**
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* Compress pointer
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*
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* @return packed pointer
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*/
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uintptr_t
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mem_compress_pointer (const void *pointer_p) /**< pointer to compress */
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{
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JERRY_ASSERT (mem_is_heap_pointer (pointer_p));
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return mem_heap_compress_pointer (pointer_p);
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} /* mem_compress_pointer */
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/**
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* Decompress pointer
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*
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* @return unpacked pointer
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*/
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void*
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mem_decompress_pointer (uintptr_t compressed_pointer) /**< pointer to decompress */
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{
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return mem_heap_decompress_pointer (compressed_pointer);
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} /* mem_decompress_pointer */
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/**
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* Register specified 'try to give memory back' callback routine
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*/
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void
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mem_register_a_try_give_memory_back_callback (mem_try_give_memory_back_callback_t callback) /* callback routine */
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{
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/* Currently only one callback is supported */
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JERRY_ASSERT (mem_try_give_memory_back_callback == NULL);
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mem_try_give_memory_back_callback = callback;
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} /* mem_register_a_try_give_memory_back_callback */
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/**
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* Unregister specified 'try to give memory back' callback routine
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*/
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void
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mem_unregister_a_try_give_memory_back_callback (mem_try_give_memory_back_callback_t callback) /* callback routine */
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{
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/* Currently only one callback is supported */
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JERRY_ASSERT (mem_try_give_memory_back_callback == callback);
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mem_try_give_memory_back_callback = NULL;
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} /* mem_unregister_a_try_give_memory_back_callback */
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/**
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* Run 'try to give memory back' callbacks with specified severity
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*/
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void
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mem_run_try_to_give_memory_back_callbacks (mem_try_give_memory_back_severity_t severity) /**< severity of
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the request */
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{
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if (mem_try_give_memory_back_callback != NULL)
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{
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mem_try_give_memory_back_callback (severity);
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}
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mem_pools_collect_empty ();
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} /* mem_run_try_to_give_memory_back_callbacks */
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#ifdef MEM_STATS
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/**
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* Reset peak values in memory usage statistics
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*/
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void
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mem_stats_reset_peak (void)
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{
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mem_heap_stats_reset_peak ();
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mem_pools_stats_reset_peak ();
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} /* mem_stats_reset_peak */
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/**
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* Print memory usage statistics
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*/
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void
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mem_stats_print (void)
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{
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mem_heap_stats_print ();
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mem_pools_stats_t stats;
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mem_pools_get_stats (&stats);
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printf ("Pools stats:\n");
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printf (" Chunk size: %zu\n"
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" Pools: %zu\n"
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" Allocated chunks: %zu\n"
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" Free chunks: %zu\n"
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" Peak pools: %zu\n"
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" Peak allocated chunks: %zu\n\n",
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MEM_POOL_CHUNK_SIZE,
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stats.pools_count,
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stats.allocated_chunks,
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stats.free_chunks,
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stats.peak_pools_count,
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stats.peak_allocated_chunks);
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} /* mem_stats_print */
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#endif /* MEM_STATS */
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