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Add comments to explain why we are hardcoding RUSAGE_THREAD

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Mark Haines 2015-12-04 11:53:38 +00:00
parent d6059bdd2a
commit 5231737369
1 changed files with 8 additions and 0 deletions
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8
synapse/util/logcontext.py
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@ -21,12 +21,20 @@ logger = logging.getLogger(__name__)
try: try:
import resource 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 RUSAGE_THREAD = 1
# If the system doesn't support RUSAGE_THREAD then this should throw an
# exception.
resource.getrusage(RUSAGE_THREAD) resource.getrusage(RUSAGE_THREAD)
def get_thread_resource_usage(): def get_thread_resource_usage():
return resource.getrusage(RUSAGE_THREAD) return resource.getrusage(RUSAGE_THREAD)
except: 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(): def get_thread_resource_usage():
return None return None