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| author | Michael Droettboom <mdboom@gmail.com> | 2022-05-06 03:59:45 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-05-06 03:59:45 (GMT) |
| commit | adcb6a6055c7fe6e02621f66945be237b42e945a (patch) | |
| tree | bf59f688896e913075c974b366bd1f0864e5d568 | |
| parent | 301351c6a227249770fdf498054e6bbce1c3ee3c (diff) | |
| download | cpython-adcb6a6055c7fe6e02621f66945be237b42e945a.zip cpython-adcb6a6055c7fe6e02621f66945be237b42e945a.tar.gz cpython-adcb6a6055c7fe6e02621f66945be237b42e945a.tar.bz2 | |
gh-92356: Fix regression in ctypes function call overhead (#92357)
38f331d introduced a delayed initialization routine to set up
ctypes formattable (`_ctypes_init_fielddesc`), but inadvertently
removed setting the `initialization` flag to 1 to avoid initting
each time.
| -rw-r--r-- | Misc/NEWS.d/next/Library/2022-05-05-19-25-09.gh-issue-92356.uvxWdu.rst | 1 | ||||
| -rw-r--r-- | Modules/_ctypes/cfield.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Library/2022-05-05-19-25-09.gh-issue-92356.uvxWdu.rst b/Misc/NEWS.d/next/Library/2022-05-05-19-25-09.gh-issue-92356.uvxWdu.rst new file mode 100644 index 0000000..9c9566e --- /dev/null +++ b/Misc/NEWS.d/next/Library/2022-05-05-19-25-09.gh-issue-92356.uvxWdu.rst @@ -0,0 +1 @@ +Fixed a performance regression in ctypes function calls. diff --git a/Modules/_ctypes/cfield.c b/Modules/_ctypes/cfield.c index 23c11c9..c7234fb 100644 --- a/Modules/_ctypes/cfield.c +++ b/Modules/_ctypes/cfield.c @@ -1602,6 +1602,7 @@ _ctypes_get_fielddesc(const char *fmt) struct fielddesc *table = formattable; if (!initialized) { + initialized = 1; _ctypes_init_fielddesc(); } |