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[ntcore] Add method to get server time offset (#4847)

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Also exposes this as an event signaled when the offset is updated due to
a ping response from the server.
This commit is contained in:
Peter Johnson
2022-12-30 20:15:57 -08:00
committed by GitHub
parent fe1b62647f
commit f1151d375f
29 changed files with 718 additions and 60 deletions
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70
ntcore/src/test/native/cpp/TimeSyncTest.cpp Normal file
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// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
#include "gtest/gtest.h"
#include "networktables/NetworkTableInstance.h"
#include "networktables/NetworkTableListener.h"
class TimeSyncTest : public ::testing::Test {
public:
TimeSyncTest() : m_inst(nt::NetworkTableInstance::Create()) {}
~TimeSyncTest() override { nt::NetworkTableInstance::Destroy(m_inst); }
protected:
nt::NetworkTableInstance m_inst;
};
TEST_F(TimeSyncTest, TestLocal) {
auto offset = m_inst.GetServerTimeOffset();
ASSERT_FALSE(offset);
}
TEST_F(TimeSyncTest, TestServer) {
nt::NetworkTableListenerPoller poller{m_inst};
poller.AddTimeSyncListener(false);
m_inst.StartServer("timesynctest.json", "127.0.0.1", 0, 10030);
auto offset = m_inst.GetServerTimeOffset();
ASSERT_TRUE(offset);
ASSERT_EQ(0, *offset);
auto events = poller.ReadQueue();
ASSERT_EQ(1u, events.size());
auto data = events[0].GetTimeSyncEventData();
ASSERT_TRUE(data);
ASSERT_TRUE(data->valid);
ASSERT_EQ(0, data->serverTimeOffset);
ASSERT_EQ(0, data->rtt2);
m_inst.StopServer();
offset = m_inst.GetServerTimeOffset();
ASSERT_FALSE(offset);
events = poller.ReadQueue();
ASSERT_EQ(1u, events.size());
data = events[0].GetTimeSyncEventData();
ASSERT_TRUE(data);
ASSERT_FALSE(data->valid);
}
TEST_F(TimeSyncTest, TestClient3) {
m_inst.StartClient3("client");
auto offset = m_inst.GetServerTimeOffset();
ASSERT_FALSE(offset);
m_inst.StopClient();
offset = m_inst.GetServerTimeOffset();
ASSERT_FALSE(offset);
}
TEST_F(TimeSyncTest, TestClient4) {
m_inst.StartClient4("client");
auto offset = m_inst.GetServerTimeOffset();
ASSERT_FALSE(offset);
m_inst.StopClient();
offset = m_inst.GetServerTimeOffset();
ASSERT_FALSE(offset);
}