Stowage/cpython
2
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-11-10 10:32:04 +00:00
Code Issues Projects Releases Packages Wiki Activity

bpo-44032: Move data stack to thread from FrameObject. (GH-26076)

Browse source 
* Remove 'zombie' frames. We won't need them once we are allocating fixed-size frames.

* Add co_nlocalplus field to code object to avoid recomputing size of locals + frees + cells.

* Move locals, cells and freevars out of frame object into separate memory buffer.

* Use per-threadstate allocated memory chunks for local variables.

* Move globals and builtins from frame object to per-thread stack.

* Move (slow) locals frame object to per-thread stack.

* Move internal frame functions to internal header.
This commit is contained in:
Mark Shannon 2021-05-21 10:57:35 +01:00 • committed by GitHub
parent be4dd7fcd9
commit b11a951f16
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
20 changed files with 454 additions and 250 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Include/cpython/code.h
View file

@ -40,8 +40,8 @@ struct PyCodeObject {
PyObject *co_name; /* unicode (name, for reference) */
PyObject *co_linetable; /* string (encoding addr<->lineno mapping) See
Objects/lnotab_notes.txt for details. */
int co_nlocalsplus; /* Number of locals + free + cell variables */
PyObject *co_exceptiontable; /* Byte string encoding exception handling table */
void *co_zombieframe; /* for optimization only (see frameobject.c) */
PyObject *co_weakreflist; /* to support weakrefs to code objects */
/* Scratch space for extra data relating to the code object.
Type is a void* to keep the format private in codeobject.c to force