X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Ftest%2Fcommon%2Ftest_time.cc;fp=src%2Fceph%2Fsrc%2Ftest%2Fcommon%2Ftest_time.cc;h=3ab2d8d8f562e380d363b0e0a9b33e627f33cef7;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git diff --git a/src/ceph/src/test/common/test_time.cc b/src/ceph/src/test/common/test_time.cc new file mode 100644 index 0000000..3ab2d8d --- /dev/null +++ b/src/ceph/src/test/common/test_time.cc @@ -0,0 +1,178 @@ + +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab +/* + * Ceph - scalable distributed file system + * + * Copyright (C) 2004-2006 Sage Weil + * + * 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 + +#include "common/ceph_time.h" +#include "include/rados.h" +#include "gtest/gtest.h" + + +using ceph::real_clock; +using ceph::real_time; + +using ceph::real_clock; +using ceph::real_time; + +using ceph::coarse_real_clock; +using ceph::coarse_mono_clock; + +using ceph::timespan; +using ceph::signedspan; + +using std::chrono::seconds; +using std::chrono::microseconds; +using std::chrono::nanoseconds; + +static_assert(!real_clock::is_steady, "ceph::real_clock must not be steady."); +static_assert(!coarse_real_clock::is_steady, + "ceph::coarse_real_clock must not be steady."); + +static_assert(mono_clock::is_steady, "ceph::mono_clock must be steady."); +static_assert(coarse_mono_clock::is_steady, + "ceph::coarse_mono_clock must be steady."); + +// Before this file was written. +static constexpr uint32_t bs = 1440701569; +static constexpr uint32_t bns = 123456789; +static constexpr uint32_t bus = 123456; +static constexpr time_t btt = bs; +static constexpr struct timespec bts = { bs, bns }; +static constexpr struct ceph_timespec bcts = { bs, bns }; +static constexpr struct timeval btv = { bs, bus }; +static constexpr double bd = bs + ((double)bns / 1000000000.); + +template +static void system_clock_sanity() { + static const typename Clock::time_point brt(seconds(bs) + nanoseconds(bns)); + const typename Clock::time_point now(Clock::now()); + + ASSERT_GT(now, brt); + + ASSERT_GT(Clock::to_time_t(now), btt); + + ASSERT_GT(Clock::to_timespec(now).tv_sec, bts.tv_sec); + ASSERT_LT(Clock::to_timespec(now).tv_nsec, 1000000000L); + + ASSERT_GT(Clock::to_ceph_timespec(now).tv_sec, bcts.tv_sec); + ASSERT_LT(Clock::to_ceph_timespec(now).tv_nsec, 1000000000UL); + + ASSERT_GT(Clock::to_timeval(now).tv_sec, btv.tv_sec); + ASSERT_LT(Clock::to_timeval(now).tv_usec, 1000000L); +} + +template +static void system_clock_conversions() { + static typename Clock::time_point brt(seconds(bs) + + nanoseconds(bns)); + + ASSERT_EQ(Clock::to_time_t(brt), btt); + ASSERT_EQ(Clock::from_time_t(btt) + nanoseconds(bns), brt); + + { + const struct timespec tts = Clock::to_timespec(brt); + ASSERT_EQ(tts.tv_sec, bts.tv_sec); + ASSERT_EQ(tts.tv_nsec, bts.tv_nsec); + } + ASSERT_EQ(Clock::from_timespec(bts), brt); + { + struct timespec tts; + Clock::to_timespec(brt, tts); + ASSERT_EQ(tts.tv_sec, bts.tv_sec); + ASSERT_EQ(tts.tv_nsec, bts.tv_nsec); + } + + { + const struct ceph_timespec tcts = Clock::to_ceph_timespec(brt); + ASSERT_EQ(tcts.tv_sec, bcts.tv_sec); + ASSERT_EQ(tcts.tv_nsec, bcts.tv_nsec); + } + ASSERT_EQ(Clock::from_ceph_timespec(bcts), brt); + { + struct ceph_timespec tcts; + Clock::to_ceph_timespec(brt, tcts); + ASSERT_EQ(tcts.tv_sec, bcts.tv_sec); + ASSERT_EQ(tcts.tv_nsec, bcts.tv_nsec); + } + + { + const struct timeval ttv = Clock::to_timeval(brt); + ASSERT_EQ(ttv.tv_sec, btv.tv_sec); + ASSERT_EQ(ttv.tv_usec, btv.tv_usec); + } + ASSERT_EQ(Clock::from_timeval(btv), brt - nanoseconds(bns - bus * 1000)); + { + struct timeval ttv; + Clock::to_timeval(brt, ttv); + ASSERT_EQ(ttv.tv_sec, btv.tv_sec); + ASSERT_EQ(ttv.tv_usec, btv.tv_usec); + } + + ASSERT_EQ(Clock::to_double(brt), bd); + // Fudge factor + ASSERT_LT(std::abs((Clock::from_double(bd) - brt).count()), 30); +} + +TEST(RealClock, Sanity) { + system_clock_sanity(); +} + + +TEST(RealClock, Conversions) { + system_clock_conversions(); +} + +TEST(CoarseRealClock, Sanity) { + system_clock_sanity(); +} + + +TEST(CoarseRealClock, Conversions) { + system_clock_conversions(); +} + +TEST(TimePoints, SignedSubtraciton) { + ceph::real_time rta(std::chrono::seconds(3)); + ceph::real_time rtb(std::chrono::seconds(5)); + + ceph::coarse_real_time crta(std::chrono::seconds(3)); + ceph::coarse_real_time crtb(std::chrono::seconds(5)); + + ceph::mono_time mta(std::chrono::seconds(3)); + ceph::mono_time mtb(std::chrono::seconds(5)); + + ceph::coarse_mono_time cmta(std::chrono::seconds(3)); + ceph::coarse_mono_time cmtb(std::chrono::seconds(5)); + + ASSERT_LT(rta - rtb, ceph::signedspan::zero()); + ASSERT_LT((rta - rtb).count(), 0); + ASSERT_GT(rtb - rta, ceph::signedspan::zero()); + ASSERT_GT((rtb - rta).count(), 0); + + ASSERT_LT(crta - crtb, ceph::signedspan::zero()); + ASSERT_LT((crta - crtb).count(), 0); + ASSERT_GT(crtb - crta, ceph::signedspan::zero()); + ASSERT_GT((crtb - crta).count(), 0); + + ASSERT_LT(mta - mtb, ceph::signedspan::zero()); + ASSERT_LT((mta - mtb).count(), 0); + ASSERT_GT(mtb - mta, ceph::signedspan::zero()); + ASSERT_GT((mtb - mta).count(), 0); + + ASSERT_LT(cmta - cmtb, ceph::signedspan::zero()); + ASSERT_LT((cmta - cmtb).count(), 0); + ASSERT_GT(cmtb - cmta, ceph::signedspan::zero()); + ASSERT_GT((cmtb - cmta).count(), 0); +}