b320dfcf58
These classes are meant to replace OS::Ticks() and OS::TimeCurrentMillis(), which are broken in several ways. The ElapsedTimer class implements a stopwatch using TimeTicks::HighResNow() for high resolution, monotonic timing. Also fix the CpuProfile::GetStartTime() and CpuProfile::GetEndTime() methods to actually return the time relative to the unix epoch as stated in the documentation (previously that was relative to some arbitrary point in time, i.e. boot time). The previous Windows issues have been resolved, and we now use GetTickCount64() on Windows Vista and later, falling back to timeGetTime() with rollover protection for earlier Windows versions. BUG=v8:2853 R=machenbach@chromium.org, yurys@chromium.org Review URL: https://codereview.chromium.org/23490015 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16413 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
117 lines
4.4 KiB
C++
117 lines
4.4 KiB
C++
// Copyright 2013 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <cstdlib>
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#include "v8.h"
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#include "cctest.h"
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#if V8_OS_WIN
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#include "win32-headers.h"
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#endif
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using namespace v8::internal;
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TEST(TimeDeltaFromAndIn) {
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CHECK(TimeDelta::FromDays(2) == TimeDelta::FromHours(48));
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CHECK(TimeDelta::FromHours(3) == TimeDelta::FromMinutes(180));
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CHECK(TimeDelta::FromMinutes(2) == TimeDelta::FromSeconds(120));
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CHECK(TimeDelta::FromSeconds(2) == TimeDelta::FromMilliseconds(2000));
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CHECK(TimeDelta::FromMilliseconds(2) == TimeDelta::FromMicroseconds(2000));
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CHECK_EQ(static_cast<int>(13), TimeDelta::FromDays(13).InDays());
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CHECK_EQ(static_cast<int>(13), TimeDelta::FromHours(13).InHours());
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CHECK_EQ(static_cast<int>(13), TimeDelta::FromMinutes(13).InMinutes());
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CHECK_EQ(static_cast<int64_t>(13), TimeDelta::FromSeconds(13).InSeconds());
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CHECK_EQ(13.0, TimeDelta::FromSeconds(13).InSecondsF());
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CHECK_EQ(static_cast<int64_t>(13),
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TimeDelta::FromMilliseconds(13).InMilliseconds());
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CHECK_EQ(13.0, TimeDelta::FromMilliseconds(13).InMillisecondsF());
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CHECK_EQ(static_cast<int64_t>(13),
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TimeDelta::FromMicroseconds(13).InMicroseconds());
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}
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TEST(TimeJsTime) {
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Time t = Time::FromJsTime(700000.3);
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CHECK_EQ(700000.3, t.ToJsTime());
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}
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#if V8_OS_POSIX
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TEST(TimeFromTimeVal) {
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Time null;
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CHECK(null.IsNull());
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CHECK(null == Time::FromTimeval(null.ToTimeval()));
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Time now = Time::Now();
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CHECK(now == Time::FromTimeval(now.ToTimeval()));
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Time now_sys = Time::NowFromSystemTime();
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CHECK(now_sys == Time::FromTimeval(now_sys.ToTimeval()));
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Time unix_epoch = Time::UnixEpoch();
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CHECK(unix_epoch == Time::FromTimeval(unix_epoch.ToTimeval()));
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Time max = Time::Max();
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CHECK(max.IsMax());
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CHECK(max == Time::FromTimeval(max.ToTimeval()));
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}
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#endif
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#if V8_OS_WIN
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TEST(TimeFromFiletime) {
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Time null;
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CHECK(null.IsNull());
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CHECK(null == Time::FromFiletime(null.ToFiletime()));
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Time now = Time::Now();
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CHECK(now == Time::FromFiletime(now.ToFiletime()));
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Time now_sys = Time::NowFromSystemTime();
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CHECK(now_sys == Time::FromFiletime(now_sys.ToFiletime()));
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Time unix_epoch = Time::UnixEpoch();
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CHECK(unix_epoch == Time::FromFiletime(unix_epoch.ToFiletime()));
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Time max = Time::Max();
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CHECK(max.IsMax());
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CHECK(max == Time::FromFiletime(max.ToFiletime()));
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}
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#endif
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TEST(TimeTicksIsMonotonic) {
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TimeTicks previous_normal_ticks;
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TimeTicks previous_highres_ticks;
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ElapsedTimer timer;
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timer.Start();
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while (!timer.HasExpired(TimeDelta::FromMilliseconds(100))) {
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TimeTicks normal_ticks = TimeTicks::Now();
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TimeTicks highres_ticks = TimeTicks::HighResNow();
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CHECK_GE(normal_ticks, previous_normal_ticks);
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CHECK_GE((normal_ticks - previous_normal_ticks).InMicroseconds(), 0);
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CHECK_GE(highres_ticks, previous_highres_ticks);
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CHECK_GE((highres_ticks - previous_highres_ticks).InMicroseconds(), 0);
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previous_normal_ticks = normal_ticks;
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previous_highres_ticks = highres_ticks;
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}
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}
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