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//
// Copyright © 2019 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include "PeriodicCounterCapture.hpp"
namespace armnn
{
namespace profiling
{
void PeriodicCounterCapture::Start()
{
// Check if the capture thread is already running
if (m_IsRunning.load())
{
// The capture thread is already running
return;
}
// Mark the capture thread as running
m_IsRunning.store(true);
// Keep the capture procedure going until the capture thread is signalled to stop
m_KeepRunning.store(true);
// Start the new capture thread.
m_PeriodCaptureThread = std::thread(&PeriodicCounterCapture::Capture,
this,
std::ref(m_ReadCounterValues));
}
void PeriodicCounterCapture::Stop()
{
m_KeepRunning.store(false);
if (m_PeriodCaptureThread.joinable())
{
m_PeriodCaptureThread.join();
}
}
CaptureData PeriodicCounterCapture::ReadCaptureData()
{
return m_CaptureDataHolder.GetCaptureData();
}
void PeriodicCounterCapture::Capture(const IReadCounterValues& readCounterValues)
{
while (m_KeepRunning.load())
{
auto currentCaptureData = ReadCaptureData();
std::vector<uint16_t> counterIds = currentCaptureData.GetCounterIds();
if (currentCaptureData.GetCapturePeriod() == 0 || counterIds.empty())
{
m_KeepRunning.store(false);
break;
}
std::vector<std::pair<uint16_t, uint32_t>> values;
auto numCounters = counterIds.size();
values.reserve(numCounters);
// Create vector of pairs of CounterIndexes and Values
uint32_t counterValue = 0;
for (uint16_t index = 0; index < numCounters; ++index)
{
auto requestedId = counterIds[index];
counterValue = readCounterValues.GetCounterValue(requestedId);
values.emplace_back(std::make_pair(requestedId, counterValue));
}
#if USE_CLOCK_MONOTONIC_RAW
using clock = MonotonicClockRaw;
#else
using clock = std::chrono::steady_clock;
#endif
// Take a timestamp
auto timestamp = clock::now();
m_SendCounterPacket.SendPeriodicCounterCapturePacket(
static_cast<uint64_t>(timestamp.time_since_epoch().count()), values);
std::this_thread::sleep_for(std::chrono::milliseconds(currentCaptureData.GetCapturePeriod()));
}
m_IsRunning.store(false);
}
} // namespace profiling
} // namespace armnn
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