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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "component.h"
#include "componentregister.h"
#include <vespa/storageframework/generic/metric/metricregistrator.h>
#include <vespa/storageframework/generic/thread/threadpool.h>
#include <vespa/storageframework/generic/thread/thread.h>
#include <cassert>
namespace storage::framework {
void
Component::open()
{
}
void
Component::close()
{
}
Component::Component(ComponentRegister& cr, vespalib::stringref name)
: _componentRegister(&cr),
_name(name),
_status(nullptr),
_metric(nullptr),
_threadPool(nullptr),
_metricReg(nullptr),
_clock(nullptr)
{
cr.registerComponent(*this);
}
Component::~Component() = default;
void
Component::registerStatusPage(const StatusReporter& sr)
{
assert(_status == nullptr);
_status = &sr;
}
void
Component::registerMetric(metrics::Metric& m)
{
assert(_metric == nullptr);
_metric = &m;
if (_metricReg != nullptr) {
_metricReg->registerMetric(m);
}
}
void
Component::registerMetricUpdateHook(MetricUpdateHook& hook, vespalib::system_time::duration period)
{
assert(_metricUpdateHook.first == 0);
_metricUpdateHook = std::make_pair(&hook, period);
if (_metricReg != nullptr) {
_metricReg->registerUpdateHook(_name, *_metricUpdateHook.first, _metricUpdateHook.second);
}
}
void
Component::setMetricRegistrator(MetricRegistrator& mr) {
_metricReg = &mr;
if (_metricUpdateHook.first != 0) {
_metricReg->registerUpdateHook(_name, *_metricUpdateHook.first, _metricUpdateHook.second);
}
if (_metric != nullptr) {
_metricReg->registerMetric(*_metric);
}
}
ThreadPool&
Component::getThreadPool() const
{
assert(_threadPool != nullptr);
return *_threadPool;
}
// Helper functions for components wanting to start a single thread.
std::unique_ptr<Thread>
Component::startThread(Runnable& runnable, vespalib::duration waitTime, vespalib::duration maxProcessTime,
int ticksBeforeWait, std::optional<vespalib::CpuUsage::Category> cpu_category) const
{
return getThreadPool().startThread(runnable, getName(), waitTime,
maxProcessTime, ticksBeforeWait, cpu_category);
}
void
Component::requestShutdown(vespalib::stringref reason)
{
_componentRegister->requestShutdown(reason);
}
}
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