mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-04 00:48:58 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

Issue #12196: Add PIPE_MAX_SIZE to test.support, constant larger than the

Browse source 
underlying OS pipe buffer size.
This commit is contained in:
Charles-François Natali 2011-05-29 16:36:44 +02:00
parent b30eed981f
commit 2d51721832
3 changed files with 13 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

9
Lib/test/support.py
View file

@ -48,7 +48,7 @@ __all__ = [
"threading_cleanup", "reap_children", "cpython_only", "check_impl_detail",
"get_attribute", "swap_item", "swap_attr", "requires_IEEE_754",
"TestHandler", "Matcher", "can_symlink", "skip_unless_symlink",
"import_fresh_module", "requires_zlib"
"import_fresh_module", "requires_zlib", "PIPE_MAX_SIZE"
]
class Error(Exception):
@ -409,6 +409,13 @@ def _is_ipv6_enabled():
IPV6_ENABLED = _is_ipv6_enabled()
# A constant likely larger than the underlying OS pipe buffer size.
# Windows limit seems to be around 512B, and most Unix kernels have a 64K pipe
# buffer size: take 1M to be sure.
PIPE_MAX_SIZE = 1024 * 1024
# decorator for skipping tests on non-IEEE 754 platforms
requires_IEEE_754 = unittest.skipUnless(
float.__getformat__("double").startswith("IEEE"),