Import of the watch repository from Pebble

third_party/jerryscript/jerry-core/jcontext/jcontext.c

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+/* Copyright 2016 Samsung Electronics Co., Ltd.
+ * Copyright 2016 University of Szeged.
+ *
+ * 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 "jcontext.h"
+
+/** \addtogroup context Context
+ * @{
+ */
+
+/**
+ * Global context.
+ */
+jerry_context_t jerry_global_context;
+
+/**
+ * Jerry global heap section attribute.
+ */
+#ifndef JERRY_HEAP_SECTION_ATTR
+#define JERRY_GLOBAL_HEAP_SECTION
+#else /* JERRY_HEAP_SECTION_ATTR */
+#define JERRY_GLOBAL_HEAP_SECTION __attribute__ ((section (JERRY_HEAP_SECTION_ATTR)))
+#endif /* !JERRY_HEAP_SECTION_ATTR */
+
+/**
+ * Global heap.
+ */
+jmem_heap_t jerry_global_heap __attribute__ ((aligned (JMEM_ALIGNMENT))) JERRY_GLOBAL_HEAP_SECTION;
+
+#ifndef CONFIG_ECMA_LCACHE_DISABLE
+
+/**
+ * Global hash table.
+ */
+jerry_hash_table_t jerry_global_hash_table;
+
+#endif /* !CONFIG_ECMA_LCACHE_DISABLE */
+
+/**
+ * @}
+ */

third_party/jerryscript/jerry-core/jcontext/jcontext.h

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+/* Copyright 2016 Samsung Electronics Co., Ltd.
+ * Copyright 2016 University of Szeged.
+ *
+ * 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.
+ */
+
+/**
+ * Memory context for JerryScript
+ */
+#ifndef JCONTEXT_H
+#define JCONTEXT_H
+
+#include "ecma-builtins.h"
+#include "jmem-allocator.h"
+#include "jmem-config.h"
+#include "re-bytecode.h"
+#include "vm-defines.h"
+
+/** \addtogroup context Context
+ * @{
+ */
+
+/**
+ * First member of the jerry context
+ */
+#define JERRY_CONTEXT_FIRST_MEMBER ecma_builtin_objects
+
+/**
+ * JerryScript context
+ *
+ * The purpose of this header is storing
+ * all global variables for Jerry
+ */
+typedef struct
+{
+  /* Update JERRY_CONTEXT_FIRST_MEMBER if the first member changes */
+  ecma_object_t *ecma_builtin_objects[ECMA_BUILTIN_ID__COUNT]; /**< pointer to instances of built-in objects */
+#ifndef CONFIG_DISABLE_REGEXP_BUILTIN
+  const re_compiled_code_t *re_cache[RE_CACHE_SIZE]; /**< regex cache */
+#endif /* !CONFIG_DISABLE_REGEXP_BUILTIN */
+  ecma_object_t *ecma_gc_objects_lists[ECMA_GC_COLOR__COUNT]; /**< List of marked (visited during
+                                                               *   current GC session) and umarked objects */
+  jmem_heap_free_t *jmem_heap_list_skip_p; /**< This is used to speed up deallocation. */
+  jmem_pools_chunk_t *jmem_free_8_byte_chunk_p; /**< list of free eight byte pool chunks */
+#ifdef JERRY_CPOINTER_32_BIT
+  jmem_pools_chunk_t *jmem_free_16_byte_chunk_p; /**< list of free sixteen byte pool chunks */
+#endif /* JERRY_CPOINTER_32_BIT */
+  jmem_free_unused_memory_callback_t jmem_free_unused_memory_callback; /**< Callback for freeing up memory. */
+  const lit_utf8_byte_t **lit_magic_string_ex_array; /**< array of external magic strings */
+  const lit_utf8_size_t *lit_magic_string_ex_sizes; /**< external magic string lengths */
+  ecma_lit_storage_item_t *string_list_first_p; /**< first item of the literal string list */
+  ecma_lit_storage_item_t *number_list_first_p; /**< first item of the literal number list */
+  ecma_object_t *ecma_global_lex_env_p; /**< global lexical environment */
+  vm_frame_ctx_t *vm_top_context_p; /**< top (current) interpreter context */
+  size_t ecma_gc_objects_number; /**< number of currently allocated objects */
+  size_t ecma_gc_new_objects; /**< number of newly allocated objects since last GC session */
+  size_t jmem_heap_allocated_size; /**< size of allocated regions */
+  size_t jmem_heap_limit; /**< current limit of heap usage, that is upon being reached,
+                           *   causes call of "try give memory back" callbacks */
+  uint32_t lit_magic_string_ex_count; /**< external magic strings count */
+  uint32_t jerry_init_flags; /**< run-time configuration flags */
+  uint8_t ecma_gc_visited_flip_flag; /**< current state of an object's visited flag */
+  uint8_t is_direct_eval_form_call; /**< direct call from eval */
+  uint8_t jerry_api_available; /**< API availability flag */
+#ifndef CONFIG_DISABLE_REGEXP_BUILTIN
+  uint8_t re_cache_idx; /**< evicted item index when regex cache is full (round-robin) */
+#endif /* !CONFIG_DISABLE_REGEXP_BUILTIN */
+
+#ifdef JMEM_STATS
+  jmem_heap_stats_t jmem_heap_stats; /**< heap's memory usage statistics */
+  jmem_pools_stats_t jmem_pools_stats; /**< pools' memory usage statistics */
+#endif /* JMEM_STATS */
+
+#ifdef JERRY_VALGRIND_FREYA
+  uint8_t valgrind_freya_mempool_request; /**< Tells whether a pool manager
+                                           *   allocator request is in progress */
+#endif /* JERRY_VALGRIND_FREYA */
+} jerry_context_t;
+
+/**
+ * Calculate heap area size, leaving space for a pointer to the free list
+ */
+#define JMEM_HEAP_AREA_SIZE (JMEM_HEAP_SIZE - JMEM_ALIGNMENT)
+
+/**
+ * Heap structure
+ *
+ * Memory blocks returned by the allocator must not start from the
+ * beginning of the heap area because offset 0 is reserved for
+ * JMEM_CP_NULL. This special constant is used in several places,
+ * e.g. it marks the end of the property chain list, so it cannot
+ * be eliminated from the project. Although the allocator cannot
+ * use the first 8 bytes of the heap, nothing prevents to use it
+ * for other purposes. Currently the free region start is stored
+ * there.
+ */
+typedef struct
+{
+  jmem_heap_free_t first; /**< first node in free region list */
+  uint8_t area[JMEM_HEAP_AREA_SIZE]; /**< heap area */
+} jmem_heap_t;
+
+#ifndef CONFIG_ECMA_LCACHE_DISABLE
+
+/**
+ * JerryScript global hash table for caching the last access of properties.
+ */
+typedef struct
+{
+  /**
+   * Hash table
+   */
+  ecma_lcache_hash_entry_t table[ECMA_LCACHE_HASH_ROWS_COUNT][ECMA_LCACHE_HASH_ROW_LENGTH];
+} jerry_hash_table_t;
+
+#endif /* !CONFIG_ECMA_LCACHE_DISABLE */
+
+/**
+ * Global context.
+ */
+extern jerry_context_t jerry_global_context;
+
+/**
+ * Global heap.
+ */
+extern jmem_heap_t jerry_global_heap;
+
+#ifndef CONFIG_ECMA_LCACHE_DISABLE
+
+/**
+ * Global hash table.
+ */
+extern jerry_hash_table_t jerry_global_hash_table;
+
+#endif /* !CONFIG_ECMA_LCACHE_DISABLE */
+
+/**
+ * Provides a reference to a field in the current context.
+ */
+#ifndef JERRY_CONTEXT
+#  define JERRY_CONTEXT(field) (jerry_global_context.field)
+#endif
+
+/**
+ * Provides a reference to the area field of the heap.
+ */
+#ifndef JERRY_HEAP_CONTEXT
+#  define JERRY_HEAP_CONTEXT(field) (jerry_global_heap.field)
+#endif
+
+#ifndef CONFIG_ECMA_LCACHE_DISABLE
+
+/**
+ * Provides a reference to the global hash table.
+ */
+#ifndef JERRY_HASH_TABLE_CONTEXT
+#  define JERRY_HASH_TABLE_CONTEXT(field) (jerry_global_hash_table.field)
+#endif
+
+#endif /* !CONFIG_ECMA_LCACHE_DISABLE */
+
+/**
+ * @}
+ */
+
+#endif /* !JCONTEXT_H */