mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-22 09:45:06 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 13

bpo-32030: Rework memory allocators (#4625)

Browse source 
* Fix _PyMem_SetupAllocators("debug"): always restore allocators to
  the defaults, rather than only caling _PyMem_SetupDebugHooks().
* Add _PyMem_SetDefaultAllocator() helper to set the "default"
  allocator.
* Add _PyMem_GetAllocatorsName(): get the name of the allocators
* main() now uses debug hooks on memory allocators if Py_DEBUG is
  defined, rather than calling directly malloc()
* Document default memory allocators in C API documentation
* _Py_InitializeCore() now fails with a fatal user error if
  PYTHONMALLOC value is an unknown memory allocator, instead of
  failing with a fatal internal error.
* Add new tests on the PYTHONMALLOC environment variable
* Add support.with_pymalloc()
* Add the _testcapi.WITH_PYMALLOC constant and expose it as
   support.with_pymalloc().
* sysconfig.get_config_var('WITH_PYMALLOC') doesn't work on Windows, so
   replace it with support.with_pymalloc().
* pythoninfo: add _testcapi collector for pymem
This commit is contained in:
Victor Stinner 2017-11-29 17:20:38 +01:00 • committed by GitHub
parent c15bb49d71
commit 5d39e04290
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
14 changed files with 405 additions and 171 deletions
Download patch file Download diff file Expand all files Collapse all files

19
Programs/python.c
View file

@ -33,12 +33,9 @@ main(int argc, char **argv)
exit(1);
}
/* Force malloc() allocator to bootstrap Python */
#ifdef Py_DEBUG
(void)_PyMem_SetupAllocators("malloc_debug");
# else
(void)_PyMem_SetupAllocators("malloc");
# endif
/* Force default allocator, to be able to release memory above
with a known allocator. */
_PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, NULL);
argv_copy = (wchar_t **)PyMem_RawMalloc(sizeof(wchar_t*) * (argc+1));
argv_copy2 = (wchar_t **)PyMem_RawMalloc(sizeof(wchar_t*) * (argc+1));
@ -98,13 +95,9 @@ main(int argc, char **argv)
status = Py_Main(argc, argv_copy);
/* Force again malloc() allocator to release memory blocks allocated
before Py_Main() */
#ifdef Py_DEBUG
(void)_PyMem_SetupAllocators("malloc_debug");
# else
(void)_PyMem_SetupAllocators("malloc");
# endif
/* Py_Main() can change PyMem_RawMalloc() allocator, so restore the default
to release memory blocks allocated before Py_Main() */
_PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, NULL);
for (i = 0; i < argc; i++) {
PyMem_RawFree(argv_copy2[i]);