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78 lines
2.8 KiB
78 lines
2.8 KiB
16 years ago
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// Copyright 2007-2008 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 "v8.h"
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#include "counters.h"
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#include "platform.h"
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namespace v8 { namespace internal {
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CounterLookupCallback StatsTable::lookup_function_ = NULL;
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CreateHistogramCallback StatsTable::create_histogram_function_ = NULL;
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AddHistogramSampleCallback StatsTable::add_histogram_sample_function_ = NULL;
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// Start the timer.
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void StatsCounterTimer::Start() {
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if (!counter_.Enabled())
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return;
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stop_time_ = 0;
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start_time_ = OS::Ticks();
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}
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// Stop the timer and record the results.
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void StatsCounterTimer::Stop() {
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if (!counter_.Enabled())
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return;
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stop_time_ = OS::Ticks();
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// Compute the delta between start and stop, in milliseconds.
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int milliseconds = static_cast<int>(stop_time_ - start_time_) / 1000;
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counter_.Increment(milliseconds);
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}
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// Start the timer.
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void HistogramTimer::Start() {
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if (GetHistogram() != NULL) {
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stop_time_ = 0;
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start_time_ = OS::Ticks();
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}
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}
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// Stop the timer and record the results.
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void HistogramTimer::Stop() {
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if (histogram_ != NULL) {
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stop_time_ = OS::Ticks();
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// Compute the delta between start and stop, in milliseconds.
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int milliseconds = static_cast<int>(stop_time_ - start_time_) / 1000;
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StatsTable::AddHistogramSample(histogram_, milliseconds);
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}
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}
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} } // namespace v8::internal
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