Mercurial > cpython-lru_cache-weakref

annotate Include/cellobject.h @ 87690:66c1c9f32567 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 62b61abd02b8
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
16256
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
1 /* Cell object interface */
66664
62b61abd02b8 Merge branches/pep-0384.
Martin v. Löwis <martin@v.loewis.de>
parents: 44351
diff changeset
2 #ifndef Py_LIMITED_API
16256
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
3 #ifndef Py_CELLOBJECT_H
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
4 #define Py_CELLOBJECT_H
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
5 #ifdef __cplusplus
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
6 extern "C" {
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
7 #endif
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
8
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
9 typedef struct {
22293
24af842030a0 backport jhylton's checkin of
Michael W. Hudson <mwh@python.net>
parents: 16256
diff changeset
10 PyObject_HEAD
33856
60c60dc75c77 Wrote down the invariants of some common objects whose structure is
Armin Rigo <arigo@tunes.org>
parents: 24752
diff changeset
11 PyObject *ob_ref; /* Content of the cell or NULL when empty */
16256
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
12 } PyCellObject;
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
13
24752
c1eb668525e1 Excise DL_EXPORT from Include.
Mark Hammond <mhammond@skippinet.com.au>
parents: 22293
diff changeset
14 PyAPI_DATA(PyTypeObject) PyCell_Type;
16256
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
15
44351
86a2679dca46 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT.
Christian Heimes <christian@cheimes.de>
parents: 42334
diff changeset
16 #define PyCell_Check(op) (Py_TYPE(op) == &PyCell_Type)
16256
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
17
24752
c1eb668525e1 Excise DL_EXPORT from Include.
Mark Hammond <mhammond@skippinet.com.au>
parents: 22293
diff changeset
18 PyAPI_FUNC(PyObject *) PyCell_New(PyObject *);
c1eb668525e1 Excise DL_EXPORT from Include.
Mark Hammond <mhammond@skippinet.com.au>
parents: 22293
diff changeset
19 PyAPI_FUNC(PyObject *) PyCell_Get(PyObject *);
c1eb668525e1 Excise DL_EXPORT from Include.
Mark Hammond <mhammond@skippinet.com.au>
parents: 22293
diff changeset
20 PyAPI_FUNC(int) PyCell_Set(PyObject *, PyObject *);
16256
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
21
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
22 #define PyCell_GET(op) (((PyCellObject *)(op))->ob_ref)
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
23 #define PyCell_SET(op, v) (((PyCellObject *)(op))->ob_ref = v)
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
24
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
25 #ifdef __cplusplus
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
26 }
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
27 #endif
07071872de3e PEP 227 implementation
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
diff changeset
28 #endif /* !Py_TUPLEOBJECT_H */
66664
62b61abd02b8 Merge branches/pep-0384.
Martin v. Löwis <martin@v.loewis.de>
parents: 44351
diff changeset
29 #endif /* Py_LIMITED_API */