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gh-113055: Use pointer for interp->obmalloc state (gh-113412)

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For interpreters that share state with the main interpreter, this points
to the same static memory structure.  For interpreters with their own
obmalloc state, it is heap allocated.  Add free_obmalloc_arenas() which
will free the obmalloc arenas and radix tree structures for interpreters
with their own obmalloc state.

Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
This commit is contained in:
Neil Schemenauer 2024-01-26 19:38:14 -08:00 • committed by GitHub
parent 2d08af34b8
commit 7a7bce5a0a
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GPG key ID: B5690EEEBB952194
9 changed files with 157 additions and 24 deletions
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16
Python/pylifecycle.c
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@ -32,6 +32,7 @@
#include "pycore_typevarobject.h" // _Py_clear_generic_types()
#include "pycore_unicodeobject.h" // _PyUnicode_InitTypes()
#include "pycore_weakref.h" // _PyWeakref_GET_REF()
#include "pycore_obmalloc.h" // _PyMem_init_obmalloc()
#include "opcode.h"
@ -645,6 +646,13 @@ pycore_create_interpreter(_PyRuntimeState *runtime,
return status;
}
// initialize the interp->obmalloc state. This must be done after
// the settings are loaded (so that feature_flags are set) but before
// any calls are made to obmalloc functions.
if (_PyMem_init_obmalloc(interp) < 0) {
return _PyStatus_NO_MEMORY();
}
PyThreadState *tstate = _PyThreadState_New(interp,
_PyThreadState_WHENCE_INTERP);
if (tstate == NULL) {
@ -2144,6 +2152,14 @@ new_interpreter(PyThreadState **tstate_p, const PyInterpreterConfig *config)
goto error;
}
// initialize the interp->obmalloc state. This must be done after
// the settings are loaded (so that feature_flags are set) but before
// any calls are made to obmalloc functions.
if (_PyMem_init_obmalloc(interp) < 0) {
status = _PyStatus_NO_MEMORY();
goto error;
}
tstate = _PyThreadState_New(interp, _PyThreadState_WHENCE_INTERP);
if (tstate == NULL) {
status = _PyStatus_NO_MEMORY();