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Implement snapshot functionality.

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JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
JerryScript-DCO-1.0-Signed-off-by: Andrey Shitov a.shitov@samsung.com
This commit is contained in:
Andrey Shitov
2015-09-07 18:38:24 +03:00
committed by Ruben Ayrapetyan
parent 7481fb606f
commit 311cc65b33
16 changed files with 1489 additions and 95 deletions
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jerry-core/lit/lit-literal-storage.h
+56 -2
View File
@@ -133,6 +133,7 @@ public:
bool is_equal (lit_charset_record_t *);
bool is_equal_utf8_string (const lit_utf8_byte_t *, lit_utf8_size_t);
uint32_t dump_for_snapshot (uint8_t *buffer_p, size_t buffer_size, size_t *in_out_buffer_offset_p);
private:
/**
* Set record's size (the value of the 'length' field in the header)
@@ -244,6 +245,25 @@ public:
return (magic_string_id_t) id;
} /* get_magic_str_id */
/**
* Dump magic string record to specified snapshot buffer
*
* @return number of bytes dumped,
* or 0 - upon dump failure
*/
template <typename magic_string_id_t>
uint32_t dump_for_snapshot (uint8_t *buffer_p, /**< buffer to dump to */
size_t buffer_size, /**< buffer size */
size_t *in_out_buffer_offset_p) const /**< in-out: buffer write offset */
{
magic_string_id_t id = get_magic_str_id<magic_string_id_t> ();
if (!jrt_write_to_buffer_by_offset (buffer_p, buffer_size, in_out_buffer_offset_p, id))
{
return 0;
}
return ((uint32_t) sizeof (id));
} /* dump_for_snapshot */
private:
/**
* Set record's size (the value of the 'length' field in the header)
@@ -377,6 +397,9 @@ public:
return it.read<ecma_number_t> ();
} /* get_number */
uint32_t dump_for_snapshot (uint8_t *buffer_p,
size_t buffer_size,
size_t *in_out_buffer_offset_p) const;
private:
/**
* Set record's size (the value of the 'length' field in the header)
@@ -410,10 +433,14 @@ class lit_literal_storage_t : public rcs_recordset_t
public:
enum
{
LIT_STR = _first_type_id,
LIT_TYPE_FIRST = _first_type_id,
LIT_STR = LIT_TYPE_FIRST,
LIT_MAGIC_STR,
LIT_MAGIC_STR_EX,
LIT_NUMBER
LIT_NUMBER,
LIT_TYPE_LAST = LIT_NUMBER
};
lit_charset_record_t *create_charset_record (const lit_utf8_byte_t *, lit_utf8_size_t);
@@ -421,6 +448,8 @@ public:
lit_magic_record_t *create_magic_record_ex (lit_magic_string_ex_id_t);
lit_number_record_t *create_number_record (ecma_number_t);
uint32_t count_literals (void);
void dump ();
private:
@@ -434,4 +463,29 @@ private:
#define LIT_MAGIC_STR_EX_T (lit_literal_storage_t::LIT_MAGIC_STR_EX)
#define LIT_NUMBER_T (lit_literal_storage_t::LIT_NUMBER)
#ifdef JERRY_ENABLE_SNAPSHOT
/**
* Map from literal identifiers to the literal offsets in snapshot (or reverse)
*/
typedef struct
{
lit_cpointer_t literal_id; /**< identifier of literal in literal storage */
uint32_t literal_offset; /**< offset of the literal in snapshot */
} lit_mem_to_snapshot_id_map_entry_t;
extern bool
lit_dump_literals_for_snapshot (uint8_t *buffer_p,
size_t buffer_size,
size_t *in_out_buffer_offset_p,
lit_mem_to_snapshot_id_map_entry_t **out_map_p,
uint32_t *out_map_num_p,
uint32_t *out_lit_table_size_p);
extern bool lit_load_literals_from_snapshot (const uint8_t *lit_table_p,
uint32_t lit_table_size,
lit_mem_to_snapshot_id_map_entry_t **out_map_p,
uint32_t *out_map_num_p,
bool is_copy);
#endif /* JERRY_ENABLE_SNAPSHOT */
#endif /* LIT_LITERAL_STORAGE_H */