mirror of
https://github.com/jerryscript-project/jerryscript.git
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67 lines
2.3 KiB
C++
67 lines
2.3 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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#include "lit-id-hash-table.h"
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#include "bytecode-data.h"
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#include "mem-heap.h"
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#include "jrt-libc-includes.h"
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lit_id_hash_table *
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lit_id_hash_table_init (size_t buckets_count, size_t blocks_count)
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{
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size_t size = mem_heap_recommend_allocation_size (sizeof (lit_id_hash_table));
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lit_id_hash_table *table = (lit_id_hash_table *) mem_heap_alloc_block (size, MEM_HEAP_ALLOC_LONG_TERM);
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memset (table, 0, size);
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size = mem_heap_recommend_allocation_size (sizeof (literal_index_t) * buckets_count);
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table->raw_buckets = (literal_index_t *) mem_heap_alloc_block (size, MEM_HEAP_ALLOC_LONG_TERM);
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memset (table->raw_buckets, 0, size);
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size = mem_heap_recommend_allocation_size (sizeof (literal_index_t *) * blocks_count);
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table->buckets = (literal_index_t **) mem_heap_alloc_block (size, MEM_HEAP_ALLOC_LONG_TERM);
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memset (table->buckets, 0, size);
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table->current_bucket_pos = 0;
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return table;
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}
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void
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lit_id_hash_table_free (lit_id_hash_table *table)
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{
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JERRY_ASSERT (table);
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mem_heap_free_block ((uint8_t *) table->raw_buckets);
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mem_heap_free_block ((uint8_t *) table->buckets);
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mem_heap_free_block ((uint8_t *) table);
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}
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void
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lit_id_hash_table_insert (lit_id_hash_table *table, idx_t uid, opcode_counter_t oc, literal_index_t lit_id)
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{
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JERRY_ASSERT (table);
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size_t block_id = oc / BLOCK_SIZE;
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if (table->buckets[block_id] == NULL)
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{
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table->buckets[block_id] = table->raw_buckets + table->current_bucket_pos;
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}
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table->buckets[block_id][uid] = lit_id;
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table->current_bucket_pos++;
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}
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literal_index_t
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lit_id_hash_table_lookup (lit_id_hash_table *table, idx_t uid, opcode_counter_t oc)
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{
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JERRY_ASSERT (table);
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size_t block_id = oc / BLOCK_SIZE;
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JERRY_ASSERT (table->buckets[block_id]);
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return table->buckets[block_id][uid];
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}
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