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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Copyright (C) 2016 Red Hat Inc.
*
* Author: J. Eric Ivancich <ivancich@redhat.com>
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version
* 2.1, as published by the Free Software Foundation. See file
* COPYING.
*/
#include <chrono>
#include <mutex>
#include <functional>
#include <iostream>
#include "dmclock_client.h"
#include "dmclock_util.h"
#include "gtest/gtest.h"
namespace dmc = crimson::dmclock;
namespace crimson {
namespace dmclock {
/*
* Allows us to test the code provided with the mutex provided locked.
*/
static void test_locked(std::mutex& mtx, std::function<void()> code) {
std::lock_guard<std::mutex> l(mtx);
code();
}
TEST(dmclock_client, server_erase) {
using ServerId = int;
// using ClientId = int;
ServerId server = 101;
// ClientId client = 3;
// dmc::PhaseType resp_params = dmc::PhaseType::reservation;
dmc::ServiceTracker<ServerId> st(std::chrono::seconds(2),
std::chrono::seconds(3));
auto lock_st = [&](std::function<void()> code) {
test_locked(st.data_mtx, code);
};
/* The timeline should be as follows:
*
* 0 seconds : request created
*
* 1 seconds : map is size 1
*
* 2 seconds : clean notes first mark; +2 is base for further calcs
*
* 4 seconds : clean does nothing except makes another mark
*
* 5 seconds : when we're secheduled to erase (+2 + 3)
*
* 5 seconds : since the clean job hasn't run yet, map still size 1
*
* 6 seconds : clean erases server
*
* 7 seconds : verified server is gone (map size 0)
*/
lock_st([&] () {
EXPECT_EQ(0u, st.server_map.size()) <<
"server map initially has size 0";
});
std::this_thread::sleep_for(std::chrono::seconds(1));
// call for side effects
(void) st.get_req_params(server);
lock_st([&] () {
EXPECT_EQ(1u, st.server_map.size()) <<
"server map has size 1 after first request";
});
std::this_thread::sleep_for(std::chrono::seconds(4));
lock_st([&] () {
EXPECT_EQ(1u, st.server_map.size()) <<
"server map has size 1 just before erase";
});
std::this_thread::sleep_for(std::chrono::seconds(2));
lock_st([&] () {
EXPECT_EQ(0u, st.server_map.size()) <<
"server map has size 0 just after erase";
});
} // TEST
TEST(dmclock_client, delta_rho_values_borrowing_tracker) {
using ServerId = int;
// using ClientId = int;
ServerId server1 = 101;
ServerId server2 = 7;
// ClientId client = 3;
// RespParams<ServerId> resp_params(server, dmc::PhaseType::reservation);
dmc::ServiceTracker<ServerId,dmc::BorrowingTracker> st(std::chrono::seconds(2),
std::chrono::seconds(3));
auto rp1 = st.get_req_params(server1);
EXPECT_EQ(1u, rp1.delta) <<
"delta should be 1 with no intervening responses by" <<
"other servers";
EXPECT_EQ(1u, rp1.rho) <<
"rho should be 1 with no intervening reservation responses by" <<
"other servers";
auto rp2 = st.get_req_params(server1);
EXPECT_EQ(1u, rp2.delta) <<
"delta should be 1 with no intervening responses by" <<
"other servers";
EXPECT_EQ(1u, rp2.rho) <<
"rho should be 1 with no intervening reservation responses by" <<
"other servers";
// RESPONSE
st.track_resp(server1, dmc::PhaseType::priority, 1u);
auto rp3 = st.get_req_params(server1);
EXPECT_EQ(1u, rp3.delta) <<
"delta should be 1 with no intervening responses by" <<
"other servers";
EXPECT_EQ(1u, rp3.rho) <<
"rho should be 1 with no intervening reservation responses by" <<
"other servers";
// RESPONSE
st.track_resp(server2, dmc::PhaseType::priority, 1u);
auto rp4 = st.get_req_params(server1);
EXPECT_EQ(1u, rp4.delta) <<
"delta should be 2 with one intervening priority response by " <<
"another server";
EXPECT_EQ(1u, rp4.rho) <<
"rho should be 1 with one intervening priority responses by " <<
"another server";
auto rp5 = st.get_req_params(server1);
EXPECT_EQ(1u, rp5.delta) <<
"delta should be 1 with no intervening responses by" <<
"other servers";
EXPECT_EQ(1u, rp5.rho) <<
"rho should be 1 with no intervening reservation responses by" <<
"other servers";
// RESPONSE
st.track_resp(server2, dmc::PhaseType::reservation, 1u);
auto rp6 = st.get_req_params(server1);
EXPECT_EQ(1u, rp6.delta) <<
"delta should be 2 with one intervening reservation response by " <<
"another server";
EXPECT_EQ(1u, rp6.rho) <<
"rho should be 2 with one intervening reservation responses by " <<
"another server";
st.track_resp(server2, dmc::PhaseType::reservation, 1u);
st.track_resp(server1, dmc::PhaseType::priority, 1u);
st.track_resp(server2, dmc::PhaseType::priority, 1u);
st.track_resp(server2, dmc::PhaseType::reservation, 1u);
st.track_resp(server1, dmc::PhaseType::reservation, 1u);
st.track_resp(server1, dmc::PhaseType::priority, 1u);
st.track_resp(server2, dmc::PhaseType::priority, 1u);
auto rp7 = st.get_req_params(server1);
EXPECT_EQ(5u, rp7.delta) <<
"delta should be 5 with four intervening responses by " <<
"another server";
EXPECT_EQ(1u, rp7.rho) <<
"rho should be 1 with two intervening reservation responses by " <<
"another server";
auto rp7b = st.get_req_params(server2);
EXPECT_EQ(9u, rp7b.delta) <<
"delta should be 9 with three intervening responses by " <<
"another server";
EXPECT_EQ(4u, rp7b.rho) <<
"rho should be 4 with one intervening reservation responses by " <<
"another server";
auto rp8 = st.get_req_params(server1);
EXPECT_EQ(1u, rp8.delta) <<
"delta should be 1 with no intervening responses by " <<
"another server";
EXPECT_EQ(1u, rp8.rho) <<
"rho should be 1 with no intervening reservation responses by " <<
"another server";
auto rp8b = st.get_req_params(server2);
EXPECT_EQ(1u, rp8b.delta) <<
"delta should be 1 with no intervening responses by " <<
"another server";
EXPECT_EQ(1u, rp8b.rho) <<
"rho should be 1 with no intervening reservation responses by " <<
"another server";
} // TEST
// NB: the BorrowingTracker has not been fully tested and the
// expected values below have not yet been compared with the
// theoretically correct values.
TEST(dmclock_client, delta_rho_values_orig_tracker) {
using ServerId = int;
ServerId server1 = 101;
ServerId server2 = 7;
dmc::ServiceTracker<ServerId,OrigTracker>
st(std::chrono::seconds(2), std::chrono::seconds(3));
auto rp1 = st.get_req_params(server1);
EXPECT_EQ(1u, rp1.delta);
EXPECT_EQ(1u, rp1.rho);
auto rp2 = st.get_req_params(server1);
EXPECT_EQ(0u, rp2.delta);
EXPECT_EQ(0u, rp2.rho);
st.track_resp(server1, dmc::PhaseType::priority, 1u);
auto rp3 = st.get_req_params(server1);
EXPECT_EQ(0u, rp3.delta);
EXPECT_EQ(0u, rp3.rho);
st.track_resp(server2, dmc::PhaseType::priority, 1u);
auto rp4 = st.get_req_params(server1);
EXPECT_EQ(1u, rp4.delta);
EXPECT_EQ(0u, rp4.rho);
auto rp5 = st.get_req_params(server1);
EXPECT_EQ(0u, rp5.delta);
EXPECT_EQ(0u, rp5.rho);
st.track_resp(server2, dmc::PhaseType::reservation, 1u);
auto rp6 = st.get_req_params(server1);
EXPECT_EQ(1u, rp6.delta);
EXPECT_EQ(1u, rp6.rho);
// auto rp6_b = st.get_req_params(server2);
st.track_resp(server2, dmc::PhaseType::reservation, 1u);
st.track_resp(server1, dmc::PhaseType::priority, 1u);
st.track_resp(server2, dmc::PhaseType::priority, 1u);
st.track_resp(server2, dmc::PhaseType::reservation, 1u);
st.track_resp(server1, dmc::PhaseType::reservation, 1u);
st.track_resp(server1, dmc::PhaseType::priority, 1u);
st.track_resp(server2, dmc::PhaseType::priority, 1u);
auto rp7 = st.get_req_params(server1);
EXPECT_EQ(4u, rp7.delta);
EXPECT_EQ(2u, rp7.rho);
auto rp7b = st.get_req_params(server2);
EXPECT_EQ(3u, rp7b.delta);
EXPECT_EQ(1u, rp7b.rho);
auto rp8 = st.get_req_params(server1);
EXPECT_EQ(0u, rp8.delta);
EXPECT_EQ(0u, rp8.rho);
auto rp8b = st.get_req_params(server2);
EXPECT_EQ(0u, rp8b.delta);
EXPECT_EQ(0u, rp8b.rho);
} // TEST
} // namespace dmclock
} // namespace crimson
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