mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-12-04 00:30:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

Unified naming convention for free lists and their limits. All free lists

Browse source 
in Object/ are named ``free_list``, the counter ``numfree`` and the upper
limit is a macro ``PyName_MAXFREELIST`` inside an #ifndef block.

The chances should make it easier to adjust Python for platforms with
less memory, e.g. mobile phones.
This commit is contained in:
Christian Heimes 2008-02-06 13:33:44 +00:00
parent 6075a82243
commit 5b970ad483
9 changed files with 99 additions and 84 deletions
Download patch file Download diff file Expand all files Collapse all files

16
Objects/dictobject.c
View file

@ -183,9 +183,11 @@ show_counts(void)
} while(0)
/* Dictionary reuse scheme to save calls to malloc, free, and memset */
#define MAXFREEDICTS 80
static PyDictObject *free_dicts[MAXFREEDICTS];
static int num_free_dicts = 0;
#ifndef PyDict_MAXFREELIST
#define PyDict_MAXFREELIST 80
#endif
static PyDictObject *free_list[PyDict_MAXFREELIST];
static int numfree = 0;
PyObject *
PyDict_New(void)
@ -199,8 +201,8 @@ PyDict_New(void)
Py_AtExit(show_counts);
#endif
}
if (num_free_dicts) {
mp = free_dicts[--num_free_dicts];
if (numfree) {
mp = free_list[--numfree];
assert (mp != NULL);
assert (Py_TYPE(mp) == &PyDict_Type);
_Py_NewReference((PyObject *)mp);
@ -868,8 +870,8 @@ dict_dealloc(register PyDictObject *mp)
}
if (mp->ma_table != mp->ma_smalltable)
PyMem_DEL(mp->ma_table);
if (num_free_dicts < MAXFREEDICTS && Py_TYPE(mp) == &PyDict_Type)
free_dicts[num_free_dicts++] = mp;
if (numfree < PyDict_MAXFREELIST && Py_TYPE(mp) == &PyDict_Type)
free_list[numfree++] = mp;
else
Py_TYPE(mp)->tp_free((PyObject *)mp);
Py_TRASHCAN_SAFE_END(mp)