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Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -136,6 +136,16 @@ Build C API ----- +- The C API calls ``PyInterpreterState_New()`` and ``PyThreadState_New()`` + are two of the very few advertised as being safe to call without holding + the GIL. However, this wasn't true in a debug build, as bug 1041645 + demonstrated. In a debug build, Python redirects the ``PyMem`` family + of calls to Python's small-object allocator, to get the benefit of + its extra debugging capabilities. But Python's small-object allocator + isn't threadsafe, relying on the GIL to avoid the expense of doing its + own locking. ``PyInterpreterState_New()`` and ``PyThreadState_New()`` + call the platform ``malloc()`` directly now, regardless of build type. + - PyLong_AsUnsignedLong[Mask] now support int objects as well. - SF patch #998993: ``PyUnicode_DecodeUTF8Stateful`` and |