From 69c5657ff0ec747bfa49c3f3cb758ef45a3d6017 Mon Sep 17 00:00:00 2001 From: Ken Giusti Date: Fri, 30 May 2014 13:08:23 +0000 Subject: QPID-5790: avoid use of poll if select is monkey-patched by Eventlet/Greenthreads git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1598586 13f79535-47bb-0310-9956-ffa450edef68 --- qpid/python/qpid/compat.py | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'qpid/python') diff --git a/qpid/python/qpid/compat.py b/qpid/python/qpid/compat.py index 1fad902a31..12966c2383 100644 --- a/qpid/python/qpid/compat.py +++ b/qpid/python/qpid/compat.py @@ -40,10 +40,18 @@ except ImportError: def format_exc(): return "".join(traceback.format_exception(*sys.exc_info())) -# prefer poll() to select(), as it performs better at scale: +# QPID-5588: prefer poll() to select(), as it allows file descriptors with +# values > FD_SETSIZE import select as _select_mod -if hasattr(_select_mod, "poll"): +try: + # QPID-5790: unless eventlet/greenthreads have monkey-patched the select + # module, as to date poll() is not properly supported by eventlet + import eventlet + _is_patched = eventlet.patcher.is_monkey_patched("select") +except ImportError: + _is_patched = False +if hasattr(_select_mod, "poll") and not _is_patched: from select import error as SelectError def select(rlist, wlist, xlist, timeout=None): fd_count = 0 -- cgit v1.2.1