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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "quic/test_tools/server_thread.h"
#include "quic/core/quic_dispatcher.h"
#include "quic/platform/api/quic_containers.h"
#include "quic/test_tools/crypto_test_utils.h"
#include "quic/test_tools/quic_dispatcher_peer.h"
#include "quic/test_tools/quic_server_peer.h"
namespace quic {
namespace test {
ServerThread::ServerThread(QuicServer* server, const QuicSocketAddress& address)
: QuicThread("server_thread"),
server_(server),
clock_(server->epoll_server()),
address_(address),
port_(0),
initialized_(false) {}
ServerThread::~ServerThread() = default;
void ServerThread::Initialize() {
if (initialized_) {
return;
}
server_->CreateUDPSocketAndListen(address_);
QuicWriterMutexLock lock(&port_lock_);
port_ = server_->port();
initialized_ = true;
}
void ServerThread::Run() {
if (!initialized_) {
Initialize();
}
while (!quit_.HasBeenNotified()) {
if (pause_.HasBeenNotified() && !resume_.HasBeenNotified()) {
paused_.Notify();
resume_.WaitForNotification();
}
server_->WaitForEvents();
ExecuteScheduledActions();
MaybeNotifyOfHandshakeConfirmation();
}
server_->Shutdown();
}
int ServerThread::GetPort() {
QuicReaderMutexLock lock(&port_lock_);
int rc = port_;
return rc;
}
void ServerThread::Schedule(std::function<void()> action) {
QUICHE_DCHECK(!quit_.HasBeenNotified());
QuicWriterMutexLock lock(&scheduled_actions_lock_);
scheduled_actions_.push_back(std::move(action));
}
void ServerThread::WaitForCryptoHandshakeConfirmed() {
confirmed_.WaitForNotification();
}
bool ServerThread::WaitUntil(std::function<bool()> termination_predicate,
QuicTime::Delta timeout) {
const QuicTime deadline = clock_.Now() + timeout;
while (clock_.Now() < deadline) {
QuicNotification done_checking;
bool should_terminate = false;
Schedule([&] {
should_terminate = termination_predicate();
done_checking.Notify();
});
done_checking.WaitForNotification();
if (should_terminate) {
return true;
}
}
return false;
}
void ServerThread::Pause() {
QUICHE_DCHECK(!pause_.HasBeenNotified());
pause_.Notify();
paused_.WaitForNotification();
}
void ServerThread::Resume() {
QUICHE_DCHECK(!resume_.HasBeenNotified());
QUICHE_DCHECK(pause_.HasBeenNotified());
resume_.Notify();
}
void ServerThread::Quit() {
if (pause_.HasBeenNotified() && !resume_.HasBeenNotified()) {
resume_.Notify();
}
if (!quit_.HasBeenNotified()) {
quit_.Notify();
}
}
void ServerThread::MaybeNotifyOfHandshakeConfirmation() {
if (confirmed_.HasBeenNotified()) {
// Only notify once.
return;
}
QuicDispatcher* dispatcher = QuicServerPeer::GetDispatcher(server());
if (dispatcher->NumSessions() == 0) {
// Wait for a session to be created.
return;
}
QuicSession* session = QuicDispatcherPeer::GetFirstSessionIfAny(dispatcher);
if (session->OneRttKeysAvailable()) {
confirmed_.Notify();
}
}
void ServerThread::ExecuteScheduledActions() {
QuicCircularDeque<std::function<void()>> actions;
{
QuicWriterMutexLock lock(&scheduled_actions_lock_);
actions.swap(scheduled_actions_);
}
while (!actions.empty()) {
actions.front()();
actions.pop_front();
}
}
} // namespace test
} // namespace quic
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