Rework literal storage.

The new literal storage keeps ecma strings rather than having a custom string implementation which duplicates the string management routines. Conversions between string implementations are eliminated which improved the performance by 4%. JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
2016-06-27 00:25:09 -07:00
parent 0940be57f6
commit 0a32c97755
30 changed files with 744 additions and 1641 deletions
@@ -0,0 +1,63 @@
+/* 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.
+ */
+
+#ifndef ECMA_LIT_STORAGE_H
+#define ECMA_LIT_STORAGE_H
+
+#include "ecma-globals.h"
+#include "jmem-allocator.h"
+#include "lit-globals.h"
+
+/** \addtogroup ecma ECMA
+ * @{
+ *
+ * \addtogroup ecmalitstorage Literal storage
+ * @{
+ */
+
+/**
+ * Snapshot literal - offset map
+ */
+typedef struct
+{
+  jmem_cpointer_t literal_id; /**< literal id */
+  jmem_cpointer_t literal_offset; /**< literal offset */
+} lit_mem_to_snapshot_id_map_entry_t;
+
+extern void ecma_init_lit_storage (void);
+extern void ecma_finalize_lit_storage (void);
+
+extern jmem_cpointer_t ecma_find_or_create_literal_string (const lit_utf8_byte_t *, lit_utf8_size_t);
+extern jmem_cpointer_t ecma_find_or_create_literal_number (ecma_number_t);
+
+#ifdef JERRY_ENABLE_SNAPSHOT_SAVE
+extern bool
+ecma_save_literals_for_snapshot (uint8_t *, size_t, size_t *,
+                                 lit_mem_to_snapshot_id_map_entry_t **, uint32_t *, uint32_t *);
+#endif /* JERRY_ENABLE_SNAPSHOT_SAVE */
+
+#ifdef JERRY_ENABLE_SNAPSHOT_EXEC
+extern bool
+ecma_load_literals_from_snapshot (const uint8_t *, uint32_t,
+                                  lit_mem_to_snapshot_id_map_entry_t **, uint32_t *);
+#endif /* JERRY_ENABLE_SNAPSHOT_EXEC */
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* !ECMA_LIT_STORAGE_H */