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Make a copy of sessions to loop over

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Neil Booth 2017-01-24 07:55:52 +09:00
parent 1a48ad136c
commit 0ac36aeca0
1 changed files with 4 additions and 3 deletions
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7
server/controller.py
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@ -329,9 +329,10 @@ class Controller(util.LoggedClass):
self.cache_height = self.bp.db_height
self.header_cache.clear()
for session in self.sessions:
if isinstance(session, ElectrumX):
await session.notify(self.bp.db_height, touched)
# Make a copy; self.sessions can change whilst await-ing
sessions = [s for s in self.sessions if isinstance(s, ElectrumX)]
for session in sessions:
await session.notify(self.bp.db_height, touched)
def electrum_header(self, height):
'''Return the binary header at the given height.'''