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https://github.com/Kistler-Group/sdbus-cpp.git
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bb0f3f0242
fix timeout handling * Despite what is documented in sd_bus_get_timeout(3), the timeout returned is actually an absolute time point of Linux's CLOCK_MONOTONIC clock. Hence, we first have to subtract the current time from the timeout in order to get a relative time that can be passed to poll. * For async call timeouts to reliably work, we need a way to notify the event loop of a connection that is currently blocked waiting in poll. I.e. assume the event loop thread entered poll with a timeout set to T1. Afterwards, the main thread starts an async call C with a timeout T2 < T1. In order for C to be canceled after its timeout T1 has elapsed, we have to be able to notify the event loop so that it can update its poll data. Co-authored-by: Urs Ritzmann <ursritzmann@protonmail.ch> Co-authored-by: Lukasz Marcul <lukasz.marcul@onemeter.com>
133 lines
4.1 KiB
C++
133 lines
4.1 KiB
C++
/**
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* (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
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* (C) 2016 - 2020 Stanislav Angelovic <angelovic.s@gmail.com>
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*
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* @file DBusConnectionTests.cpp
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*
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* Created on: Jan 2, 2017
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* Project: sdbus-c++
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* Description: High-level D-Bus IPC C++ library based on sd-bus
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*
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* This file is part of sdbus-c++.
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*
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* sdbus-c++ is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* sdbus-c++ is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with sdbus-c++. If not, see <http://www.gnu.org/licenses/>.
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*/
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// Own
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#include "Defs.h"
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// sdbus
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#include <sdbus-c++/Error.h>
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#include <sdbus-c++/IConnection.h>
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// gmock
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#include <gtest/gtest.h>
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#include <gmock/gmock.h>
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// STL
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#include <thread>
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#include <chrono>
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using ::testing::Eq;
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using namespace sdbus::test;
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using namespace std::chrono_literals;
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/*-------------------------------------*/
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/* -- TEST CASES -- */
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/*-------------------------------------*/
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TEST(Connection, CanBeDefaultConstructed)
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{
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ASSERT_NO_THROW(auto con = sdbus::createConnection());
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}
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TEST(Connection, CanRequestRegisteredDbusName)
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{
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auto connection = sdbus::createConnection();
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ASSERT_NO_THROW(connection->requestName(BUS_NAME))
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<< "Perhaps you've forgotten to copy `org.sdbuscpp.integrationtests.conf` file to `/etc/dbus-1/system.d` directory before running the tests?";
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}
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TEST(Connection, CannotRequestNonregisteredDbusName)
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{
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auto connection = sdbus::createConnection();
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ASSERT_THROW(connection->requestName("some.random.not.supported.dbus.name"), sdbus::Error);
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}
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TEST(Connection, CanReleasedRequestedName)
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{
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auto connection = sdbus::createConnection();
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connection->requestName(BUS_NAME);
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ASSERT_NO_THROW(connection->releaseName(BUS_NAME));
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}
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TEST(Connection, CannotReleaseNonrequestedName)
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{
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auto connection = sdbus::createConnection();
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ASSERT_THROW(connection->releaseName("some.random.nonrequested.name"), sdbus::Error);
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}
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TEST(Connection, CanEnterAndLeaveEventLoop)
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{
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auto connection = sdbus::createConnection();
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connection->requestName(BUS_NAME);
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std::thread t([&](){ connection->enterEventLoop(); });
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connection->leaveEventLoop();
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t.join();
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}
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TEST(Connection, PollDataGetZeroTimeout)
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{
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sdbus::IConnection::PollData pd{};
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pd.timeout_usec = 0;
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ASSERT_TRUE(pd.getRelativeTimeout().has_value());
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EXPECT_THAT(pd.getRelativeTimeout().value(), Eq(std::chrono::microseconds::zero()));
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EXPECT_THAT(pd.getPollTimeout(), Eq(0));
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}
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TEST(Connection, PollDataGetInfiniteTimeout)
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{
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sdbus::IConnection::PollData pd{};
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pd.timeout_usec = UINT64_MAX;
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ASSERT_FALSE(pd.getRelativeTimeout().has_value());
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EXPECT_THAT(pd.getPollTimeout(), Eq(-1));
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}
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TEST(Connection, PollDataGetZeroRelativeTimeoutForPast)
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{
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sdbus::IConnection::PollData pd{};
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auto past = std::chrono::steady_clock::now() - 10s;
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pd.timeout_usec = std::chrono::duration_cast<std::chrono::microseconds>(past.time_since_epoch()).count();
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ASSERT_TRUE(pd.getRelativeTimeout().has_value());
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EXPECT_THAT(pd.getRelativeTimeout().value(), Eq(0us));
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EXPECT_THAT(pd.getPollTimeout(), Eq(0));
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}
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TEST(Connection, PollDataGetRelativeTimeoutInTolerance)
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{
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sdbus::IConnection::PollData pd{};
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constexpr auto TIMEOUT = 1s;
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constexpr auto TOLERANCE = 100ms;
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auto future = std::chrono::steady_clock::now() + TIMEOUT;
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pd.timeout_usec = std::chrono::duration_cast<std::chrono::microseconds>(future.time_since_epoch()).count();
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ASSERT_TRUE(pd.getRelativeTimeout().has_value());
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EXPECT_GE(pd.getRelativeTimeout().value(), TIMEOUT - TOLERANCE);
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EXPECT_LE(pd.getRelativeTimeout().value(), TIMEOUT + TOLERANCE);
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EXPECT_GE(pd.getPollTimeout(), 900);
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EXPECT_LE(pd.getPollTimeout(), 1100);
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} |