From 5231737369c6c5488cdfdcb76af8008fc8a2db07 Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Fri, 4 Dec 2015 11:53:38 +0000 Subject: [PATCH] Add comments to explain why we are hardcoding RUSAGE_THREAD --- synapse/util/logcontext.py | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/synapse/util/logcontext.py b/synapse/util/logcontext.py index 2633201528..e4ce087afe 100644 --- a/synapse/util/logcontext.py +++ b/synapse/util/logcontext.py @@ -21,12 +21,20 @@ logger = logging.getLogger(__name__) try: import resource + + # Python doesn't ship with a definition of RUSAGE_THREAD but it's defined + # to be 1 on linux so we hard code it. RUSAGE_THREAD = 1 + + # If the system doesn't support RUSAGE_THREAD then this should throw an + # exception. resource.getrusage(RUSAGE_THREAD) def get_thread_resource_usage(): return resource.getrusage(RUSAGE_THREAD) except: + # If the system doesn't support resource.getrusage(RUSAGE_THREAD) then we + # won't track resource usage by returning None. def get_thread_resource_usage(): return None