synchronizer: fix adding duplicate addresses race

2018-09-24 17:37:09 +02:00
parent 3be5b4b00f
commit 7cc628dc79
1 changed files with 1 additions and 0 deletions
--- a/electrum/synchronizer.py
+++ b/electrum/synchronizer.py
@@ -73,6 +73,7 @@ class Synchronizer(PrintError):
        asyncio.run_coroutine_threadsafe(self._add(addr), self.asyncio_loop)

    async def _add(self, addr):
+        if addr in self.requested_addrs: return
        self.requested_addrs.add(addr)
        await self.add_queue.put(addr)