Ruben Ayrapetyan
108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
/* Copyright 2014 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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/** \addtogroup ecma ---TODO---
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* @{
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*
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* \addtogroup ecmaalloc Routines for allocation/freeing memory for ECMA data types
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* @{
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*/
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/**
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* Implementation of routins for allocation/freeing memory for ECMA data types.
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*
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* All allocation routines from this module have the same structure:
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* 1. Try to allocate memory.
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* 2. If allocation was successful, return pointer to the allocated block.
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* 3. Run garbage collection.
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* 4. Try to allocate memory.
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* 5. If allocation was successful, return pointer to the allocated block;
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* else - shutdown engine.
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*/
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#include "globals.h"
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#include "ecma-alloc.h"
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#include "ecma-globals.h"
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#include "ecma-gc.h"
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#include "mem-poolman.h"
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JERRY_STATIC_ASSERT( sizeof (ecma_value_t) <= sizeof (uint16_t) );
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JERRY_STATIC_ASSERT( sizeof (ecma_property_t) <= sizeof (uint64_t) );
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FIXME( Pack ecma_object_t )
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JERRY_STATIC_ASSERT( sizeof (ecma_object_t) <= 2 * sizeof (uint64_t) );
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JERRY_STATIC_ASSERT( sizeof (ecma_array_header_t) <= sizeof (uint32_t) );
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JERRY_STATIC_ASSERT( sizeof (ecma_array_first_chunk_t) == ECMA_ARRAY_CHUNK_SIZE_IN_BYTES );
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JERRY_STATIC_ASSERT( sizeof (ecma_array_non_first_chunk_t) == ECMA_ARRAY_CHUNK_SIZE_IN_BYTES );
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JERRY_STATIC_ASSERT( sizeof (ecma_completion_value_t) == sizeof(uint32_t) );
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/**
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* Template of an allocation routine.
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*
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* FIXME: Run GC only if allocation failed.
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*/
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#define ALLOC( ecma_type) ecma_ ## ecma_type ## _t * \
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ecma_alloc_ ## ecma_type (void) \
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{ \
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ecma_ ## ecma_type ## _t *p ## ecma_type = (ecma_ ## ecma_type ## _t *) \
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mem_pools_alloc( mem_size_to_pool_chunk_type( sizeof(ecma_ ## ecma_type ## _t))); \
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\
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if ( likely( p ## ecma_type != NULL ) ) \
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{ \
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return p ## ecma_type; \
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} \
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\
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ecma_gc_run( ECMA_GC_GEN_0 ); \
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\
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p ## ecma_type = (ecma_ ## ecma_type ## _t *) \
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mem_pools_alloc( mem_size_to_pool_chunk_type( sizeof(ecma_ ## ecma_type ## _t))); \
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\
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if ( likely( p ## ecma_type != NULL ) ) \
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{ \
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return p ## ecma_type; \
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} \
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\
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JERRY_UNREACHABLE(); \
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}
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/**
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* Deallocation routine template
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*/
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#define DEALLOC( ecma_type) void \
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ecma_dealloc_ ## ecma_type( ecma_ ## ecma_type ## _t *p ## ecma_type) \
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{ \
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mem_pools_free( mem_size_to_pool_chunk_type( sizeof(ecma_ ## ecma_type ## _t)), \
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(uint8_t*) p ## ecma_type); \
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}
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/**
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* Declaration of alloc/free routine for specified ecma-type.
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*/
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#define DECLARE_ROUTINES_FOR( ecma_type) \
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ALLOC( ecma_type) \
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DEALLOC( ecma_type)
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DECLARE_ROUTINES_FOR (object)
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DECLARE_ROUTINES_FOR (property)
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DECLARE_ROUTINES_FOR (number)
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DECLARE_ROUTINES_FOR (array_first_chunk)
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DECLARE_ROUTINES_FOR (array_non_first_chunk)
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/**
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* @}
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* @}
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*/
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