From 82a0ce09b45ab9c09ce4f516be5b9b413dcec470 Mon Sep 17 00:00:00 2001 From: Suhas Daftuar Date: Thu, 7 Jan 2016 09:22:20 -0500 Subject: [PATCH] Add race-condition debugging tool to mininode --- qa/rpc-tests/test_framework/mininode.py | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/qa/rpc-tests/test_framework/mininode.py b/qa/rpc-tests/test_framework/mininode.py index 8e49b565656..ca65fb6e795 100755 --- a/qa/rpc-tests/test_framework/mininode.py +++ b/qa/rpc-tests/test_framework/mininode.py @@ -1004,6 +1004,18 @@ class msg_reject(object): class NodeConnCB(object): def __init__(self): self.verack_received = False + # deliver_sleep_time is helpful for debugging race conditions in p2p + # tests; it causes message delivery to sleep for the specified time + # before acquiring the global lock and delivering the next message. + self.deliver_sleep_time = None + + def set_deliver_sleep_time(self, value): + with mininode_lock: + self.deliver_sleep_time = value + + def get_deliver_sleep_time(self): + with mininode_lock: + return self.deliver_sleep_time # Spin until verack message is received from the node. # Tests may want to use this as a signal that the test can begin. @@ -1017,6 +1029,9 @@ class NodeConnCB(object): time.sleep(0.05) def deliver(self, conn, message): + deliver_sleep = self.get_deliver_sleep_time() + if deliver_sleep is not None: + time.sleep(deliver_sleep) with mininode_lock: try: getattr(self, 'on_' + message.command)(conn, message)