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ConnectionSet.cpp
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65 lines (50 loc) · 1.64 KB
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// Copyright 2004-present Facebook. All Rights Reserved.
#include "rsocket/internal/ConnectionSet.h"
#include "rsocket/statemachine/RSocketStateMachine.h"
#include <folly/io/async/EventBase.h>
namespace rsocket {
ConnectionSet::ConnectionSet() {}
ConnectionSet::~ConnectionSet() {
VLOG(1) << "Started ~ConnectionSet";
SCOPE_EXIT { VLOG(1) << "Finished ~ConnectionSet"; };
StateMachineMap map;
// Move all the connections out of the synchronized map so we don't block
// while closing the state machines.
{
auto locked = machines_.lock();
if (locked->empty()) {
VLOG(2) << "No connections to close, early exit";
return;
}
map.swap(*locked);
}
VLOG(2) << "Need to close " << map.size() << " connections";
for (auto& kv : map) {
auto rsocket = std::move(kv.first);
auto evb = kv.second;
auto close = [rs = std::move(rsocket)] {
rs->close({}, StreamCompletionSignal::SOCKET_CLOSED);
};
// We could be closing on the same thread as the state machine. In that
// case, close the state machine inline, otherwise we hang.
if (evb->isInEventBaseThread()) {
VLOG(3) << "Closing connection inline";
close();
} else {
VLOG(3) << "Closing connection asynchronously";
evb->runInEventBaseThread(close);
}
}
}
void ConnectionSet::insert(
std::shared_ptr<RSocketStateMachine> machine,
folly::EventBase* evb) {
machines_.lock()->emplace(std::move(machine), evb);
}
void ConnectionSet::remove(
const std::shared_ptr<RSocketStateMachine>& machine) {
auto locked = machines_.lock();
auto const result = locked->erase(machine);
DCHECK_LE(result, 1);
}
}