2 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
3 // vim: ts=8 sw=2 smarttab
5 * Ceph - scalable distributed file system
7 * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
9 * This is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License version 2.1, as published by the Free Software
12 * Foundation. See file COPYING.
18 #include "common/ceph_time.h"
19 #include "include/rados.h"
20 #include "gtest/gtest.h"
23 using ceph::real_clock;
24 using ceph::real_time;
26 using ceph::real_clock;
27 using ceph::real_time;
29 using ceph::coarse_real_clock;
30 using ceph::coarse_mono_clock;
33 using ceph::signedspan;
35 using std::chrono::seconds;
36 using std::chrono::microseconds;
37 using std::chrono::nanoseconds;
39 static_assert(!real_clock::is_steady, "ceph::real_clock must not be steady.");
40 static_assert(!coarse_real_clock::is_steady,
41 "ceph::coarse_real_clock must not be steady.");
43 static_assert(mono_clock::is_steady, "ceph::mono_clock must be steady.");
44 static_assert(coarse_mono_clock::is_steady,
45 "ceph::coarse_mono_clock must be steady.");
47 // Before this file was written.
48 static constexpr uint32_t bs = 1440701569;
49 static constexpr uint32_t bns = 123456789;
50 static constexpr uint32_t bus = 123456;
51 static constexpr time_t btt = bs;
52 static constexpr struct timespec bts = { bs, bns };
53 static constexpr struct ceph_timespec bcts = { bs, bns };
54 static constexpr struct timeval btv = { bs, bus };
55 static constexpr double bd = bs + ((double)bns / 1000000000.);
57 template<typename Clock>
58 static void system_clock_sanity() {
59 static const typename Clock::time_point brt(seconds(bs) + nanoseconds(bns));
60 const typename Clock::time_point now(Clock::now());
64 ASSERT_GT(Clock::to_time_t(now), btt);
66 ASSERT_GT(Clock::to_timespec(now).tv_sec, bts.tv_sec);
67 ASSERT_LT(Clock::to_timespec(now).tv_nsec, 1000000000L);
69 ASSERT_GT(Clock::to_ceph_timespec(now).tv_sec, bcts.tv_sec);
70 ASSERT_LT(Clock::to_ceph_timespec(now).tv_nsec, 1000000000UL);
72 ASSERT_GT(Clock::to_timeval(now).tv_sec, btv.tv_sec);
73 ASSERT_LT(Clock::to_timeval(now).tv_usec, 1000000L);
76 template<typename Clock>
77 static void system_clock_conversions() {
78 static typename Clock::time_point brt(seconds(bs) +
81 ASSERT_EQ(Clock::to_time_t(brt), btt);
82 ASSERT_EQ(Clock::from_time_t(btt) + nanoseconds(bns), brt);
85 const struct timespec tts = Clock::to_timespec(brt);
86 ASSERT_EQ(tts.tv_sec, bts.tv_sec);
87 ASSERT_EQ(tts.tv_nsec, bts.tv_nsec);
89 ASSERT_EQ(Clock::from_timespec(bts), brt);
92 Clock::to_timespec(brt, tts);
93 ASSERT_EQ(tts.tv_sec, bts.tv_sec);
94 ASSERT_EQ(tts.tv_nsec, bts.tv_nsec);
98 const struct ceph_timespec tcts = Clock::to_ceph_timespec(brt);
99 ASSERT_EQ(tcts.tv_sec, bcts.tv_sec);
100 ASSERT_EQ(tcts.tv_nsec, bcts.tv_nsec);
102 ASSERT_EQ(Clock::from_ceph_timespec(bcts), brt);
104 struct ceph_timespec tcts;
105 Clock::to_ceph_timespec(brt, tcts);
106 ASSERT_EQ(tcts.tv_sec, bcts.tv_sec);
107 ASSERT_EQ(tcts.tv_nsec, bcts.tv_nsec);
111 const struct timeval ttv = Clock::to_timeval(brt);
112 ASSERT_EQ(ttv.tv_sec, btv.tv_sec);
113 ASSERT_EQ(ttv.tv_usec, btv.tv_usec);
115 ASSERT_EQ(Clock::from_timeval(btv), brt - nanoseconds(bns - bus * 1000));
118 Clock::to_timeval(brt, ttv);
119 ASSERT_EQ(ttv.tv_sec, btv.tv_sec);
120 ASSERT_EQ(ttv.tv_usec, btv.tv_usec);
123 ASSERT_EQ(Clock::to_double(brt), bd);
125 ASSERT_LT(std::abs((Clock::from_double(bd) - brt).count()), 30);
128 TEST(RealClock, Sanity) {
129 system_clock_sanity<real_clock>();
133 TEST(RealClock, Conversions) {
134 system_clock_conversions<real_clock>();
137 TEST(CoarseRealClock, Sanity) {
138 system_clock_sanity<coarse_real_clock>();
142 TEST(CoarseRealClock, Conversions) {
143 system_clock_conversions<coarse_real_clock>();
146 TEST(TimePoints, SignedSubtraciton) {
147 ceph::real_time rta(std::chrono::seconds(3));
148 ceph::real_time rtb(std::chrono::seconds(5));
150 ceph::coarse_real_time crta(std::chrono::seconds(3));
151 ceph::coarse_real_time crtb(std::chrono::seconds(5));
153 ceph::mono_time mta(std::chrono::seconds(3));
154 ceph::mono_time mtb(std::chrono::seconds(5));
156 ceph::coarse_mono_time cmta(std::chrono::seconds(3));
157 ceph::coarse_mono_time cmtb(std::chrono::seconds(5));
159 ASSERT_LT(rta - rtb, ceph::signedspan::zero());
160 ASSERT_LT((rta - rtb).count(), 0);
161 ASSERT_GT(rtb - rta, ceph::signedspan::zero());
162 ASSERT_GT((rtb - rta).count(), 0);
164 ASSERT_LT(crta - crtb, ceph::signedspan::zero());
165 ASSERT_LT((crta - crtb).count(), 0);
166 ASSERT_GT(crtb - crta, ceph::signedspan::zero());
167 ASSERT_GT((crtb - crta).count(), 0);
169 ASSERT_LT(mta - mtb, ceph::signedspan::zero());
170 ASSERT_LT((mta - mtb).count(), 0);
171 ASSERT_GT(mtb - mta, ceph::signedspan::zero());
172 ASSERT_GT((mtb - mta).count(), 0);
174 ASSERT_LT(cmta - cmtb, ceph::signedspan::zero());
175 ASSERT_LT((cmta - cmtb).count(), 0);
176 ASSERT_GT(cmtb - cmta, ceph::signedspan::zero());
177 ASSERT_GT((cmtb - cmta).count(), 0);