/* Copyright JS Foundation and other contributors, http://js.foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdlib.h>

#include "jerryscript-port.h"

#ifndef JERRY_GLOBAL_HEAP_SIZE
#define JERRY_GLOBAL_HEAP_SIZE 512
#endif /* JERRY_GLOBAL_HEAP_SIZE */

/**
 * Pointer to the current context.
 * Note that it is a global variable, and is not a thread safe implementation.
 */
static jerry_context_t *current_context_p = NULL;

/**
 * Allocate a new external context.
 *
 * @param context_size: requested context size
 *
 * @return total allcoated size
 */
size_t JERRY_ATTR_WEAK
jerry_port_context_alloc (size_t context_size)
{
  size_t total_size = context_size + JERRY_GLOBAL_HEAP_SIZE * 1024;
  current_context_p = malloc (total_size);

  return total_size;
} /* jerry_port_context_alloc */

/**
 * Get the current context.
 *
 * @return the pointer to the current context
 */
jerry_context_t *JERRY_ATTR_WEAK
jerry_port_context_get (void)
{
  return current_context_p;
} /* jerry_port_context_get */

/**
 * Free the currently allocated external context.
 */
void JERRY_ATTR_WEAK
jerry_port_context_free (void)
{
  free (current_context_p);
} /* jerry_port_context_free */