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rpc: Ignore and log errors during cancel

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Cancelling the RPC acceptors can sometimes result in an error about
a bad file descriptor.

As this is the shutdown sequence we need to continue nevertheless,
ignore these errors, log a warning and proceed.

Fixes #4352.
This commit is contained in:
Wladimir J. van der Laan 2014-06-17 09:09:12 +02:00
parent 9fe80a2ec8
commit 33e5b42910
1 changed files with 11 additions and 2 deletions
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13
src/rpcserver.cpp
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@ -700,11 +700,20 @@ void StopRPCThreads()
// First, cancel all timers and acceptors
// This is not done automatically by ->stop(), and in some cases the destructor of
// asio::io_service can hang if this is skipped.
boost::system::error_code ec;
BOOST_FOREACH(const boost::shared_ptr<ip::tcp::acceptor> &acceptor, rpc_acceptors)
acceptor->cancel();
{
acceptor->cancel(ec);
if (ec)
LogPrintf("%s: Warning: %s when cancelling acceptor", __func__, ec.message());
}
rpc_acceptors.clear();
BOOST_FOREACH(const PAIRTYPE(std::string, boost::shared_ptr<deadline_timer>) &timer, deadlineTimers)
timer.second->cancel();
{
timer.second->cancel(ec);
if (ec)
LogPrintf("%s: Warning: %s when cancelling timer", __func__, ec.message());
}
deadlineTimers.clear();
rpc_io_service->stop();