This PR is a general cleanup for garbage collection and memory
allocation code paths.
Changes:
* Removed an unnecesary local variable from 'ecma_gc_mark'.
* Refactored 'ecma_gc_run' to have an implicit list head during
iteration, which results in one less condition in the loops,
and changed the loops to use compressed pointers to reduce the
overall amount of compression/decompression.
* Renamed 'jmem_free_unused_memory_severity_t' to 'jmem_pressure_t',
and added additional values.
* Removed 'jmem_free_unused_memory_callback', instead
'ecma_free_unused_memory' is now called directly.
* Reworked 'ecma_free_unused_memory' to handle all code paths related
to 'jmem_pressure_t', and moved all relevant code paths into this
function. This simplifies the code paths in other places.
* Reworked 'jmem_heap_gc_and_alloc_block' to be more streamlined.
* Changed mem-stats to not report unused pool chunks as allocated
memory.
* Created an allocator internal API for allocating/freeing memory blocks
that are not reported as used memory in mem-stats.
* Removed iteration statistics for the jerry allocator from mem-stats,
as they don't provide any actually useful information.
Co-authored-by: Marko Fabo <mfabo@inf.u-szeged.hu>
JerryScript-DCO-1.0-Signed-off-by: Dániel Bátyai dbatyai@inf.u-szeged.hu
New API functions:
- jerry_create_dataview
- jerry_value_is_dataview
- jerry_get_dataview_buffer
JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
Currently JS objects can only have one native pointer data which could be a limitation in special cases.
This patch allows to register multiple native infos, which can be accessed/associated with the corresponding `jerry_object_native_info_t`.
JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
New functions:
- ecma_create_symbol
- ecma_value_is_symbol
- jerry_get_symbol_descriptive_string
Also improve the jerryx_handler_print to be able to print symbol values via using the jerry_get_symbol_descriptive_string API function for symbol values.
JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
Added 'JERRY_BIN_OP_INSTANCEOF' to 'jerry_binary_operation_t' and
'jerry_binary_operation'. Added unit tests for this new operation
and updated the documentations.
JerryScript-DCO-1.0-Signed-off-by: László Langó llango.u-szeged@partner.samsung.com
This patch fixes the following error with Clang-6.0
```
jerryscript/jerry-core/api/jerry.c:1527:71: error: implicit conversion loses integer precision:
'jerry_regexp_flags_t' to 'uint16_t' (aka 'unsigned short') [-Werror,-Wconversion]
jerry_value_t ret_val = ecma_op_create_regexp_object (ecma_pattern, flags);
```
Also change the `jerry_create_regexp` and `jerry_create_regexp_sz` functions' `flags` parameter to `uint16_t` since the values created with `bitwise inclusive OR` are not part of the enum.
JerryScript-DCO-1.0-Signed-off-by: Daniel Balla dballa@inf.u-szeged.hu
Under the cover of the debugger transport layer, allocation on the
engine's heap has been made available to the public. As there are
actually no restrictions on what the allocated memory can be used
for, the memory management functions better fit in the core part
of the API.
Closes#1805
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
There was quite some confusion about terminology around instances
and contexts. All the docs mentioned external contexts but
functions and types were referring to instances, and the relation
between these two concepts were not clear. This commit keeps
(external) context as the only surviving concept.
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
The `[jerry|ecma]_char_ptr_t` types are some old legacy that are
used quite inconsistently. Their `[jerry|ecma]_char_t *` variants
are used a lot more often, so it's better to stick to one form
throughout the code base.
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
Remove automatic conversion of errors. Errors are
primary values, just like numbers or strings.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
Replaced the function, added some tests for it. Also changed the functions order to
alphabetical.
JerryScript-DCO-1.0-Signed-off-by: Istvan Miklos imiklos2@inf.u-szeged.hu
In general, public headers should not have compiler-specific
constructs but both the core and the port headers have attributes,
which are non-standard. It's better to factor out such constructs
to a common place (a new header) and hide them behind macros, which
can then be defined on a per-compiler basis.
This patch moves the existing definitions of function attributes and
likely/unlikely builtins to the new header. At the same time, it
unifies the names of these attribute defines and where they are
used. Moreover, it touches on jerry-main and removes the uses of
`__attribute__((unused))` entirely and replaces them with the
elsewhere used `(void) ...` pattern.
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
Add line info data to byte, which allows getting a backtrace info directly
from the engine. Snapshots are not supported.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
Remove jerry_parse_named_resource, merge its arguments to jerry_parse
and change is_strict argument to an option list for possible future extensions.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This patch adds a new finalize_cb callback to jerry_context_data_manager_t.
The callback is run as the very last thing in jerry_cleanup, after the VM has been torn down entirely.
There was already the deinit_cb, which is run while the VM is still in the process of being torn down.
The reason the deinit_cb is not always sufficient is that there may still be objects alive (because they still being referenced) that have native pointers associated with the context manager that is being deinit'ed.
As a result, the free_cb's for those objects can get called *after* the associated context manager's deinit_cb is run. This makes cleanup of manager state that is depended on by the live objects impossible to do in the deinit_cb. That type of cleanup can only be done when all values have been torn down completely.
JerryScript-DCO-1.0-Signed-off-by: Martijn The martijn.the@intel.com
New api function:
* jerry_get_error_type
Additionally update a few places where this new function
can be used.
JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.u-szeged@partner.samsung.com
Aborts are similar to exceptions except they are not caught by catch
and finally blocks. Callbacks should honor aborts as well and return
them without processing them. Aborts are never thrown by JavaScript
code.
In the future certain events such as out-of-memory condition may
also throw aborts.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
New API functions:
- jerry_create_arraybuffer_external
- jerry_get_arraybuffer_pointer
JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.u-szeged@partner.samsung.com
Add C API to work with Array Buffers.
The following methods are added:
- jerry_value_is_arraybuffer
- jerry_create_arraybuffer
- jerry_arraybuffer_write
- jerry_arraybuffer_read
- jerry_get_arraybuffer_byte_length
JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.u-szeged@partner.samsung.com
This patch adds direct function source code parsing, which
is useful to avoid source code duplications. The patch
also improves the Function constructor.
JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
Convert debug server port from a compile-time constant to a context
variable. This enables each engine instance (either running in the
same process or in different processes) to listen for connections
at different ports, i.e., multiple engines can be debugged at the
same time on the same machine.
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
`jerry_has_property ()` and `jerry_has_own_property ()` are inconsistent
in that they squash their return value into a `bool` when in fact it is
a `jerry_value_t`, thereby giving the wrong impression that a property
is there when it isn't and encouraging the leaking of `jerry_value_t`s
by disguising them as `bool`s.
Fixes https://github.com/jerryscript-project/jerryscript/issues/1859
JerryScript-DCO-1.0-Signed-off-by: Gabriel Schulhof gabriel.schulhof@intel.com
This approach has the benefit that it does not require any *a priori*
initialization, and that each context pointer is identified by the way
in which it was created. Additionally, retrieving the context pointer
now requires that the entity responsible for creating/destroying it
(the manager) be given. Since managers are stored in global static
const structures, they should not normally be visible across source
files, and thus there should be no danger that a context item will be
retrieved by the wrong manager and thus cast into the wrong data type.
Since the items are stored in a linked list, their number will be
limited to exactly as many as are needed for a given context, with the
caveat that storing too many on a context will cause slow retrieval.
Thanks @mhdawson for the idea!
Fixes https://github.com/jerryscript-project/jerryscript/issues/1845
JerryScript-DCO-1.0-Signed-off-by: Gabriel Schulhof gabriel.schulhof@intel.com
JerryScript should support external context, heap and lcache,
so that it can have multiple instances and runtime configurable heap
size.
Related issue: 1746
JerryScript-DCO-1.0-Signed-off-by: Zidong Jiang zidong.jiang@intel.com
* Move the job queue from the ports into jerry-core
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
* Remove port notification and keep `jerry_run_all_enqueued_jobs` API only
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu
