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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "maintenancejobrunner.h"
#include <vespa/vespalib/util/cpu_usage.h>
#include <vespa/vespalib/util/lambdatask.h>
#include <vespa/log/log.h>
LOG_SETUP(".proton.server.maintenancejobrunner");
using vespalib::CpuUsage;
using vespalib::Executor;
using vespalib::makeLambdaTask;
namespace proton {
void
MaintenanceJobRunner::run()
{
addExecutorTask();
}
void
MaintenanceJobRunner::stop() {
{
Guard guard(_lock);
_stopped = true;
}
_job->stop();
}
void
MaintenanceJobRunner::addExecutorTask()
{
Guard guard(_lock);
if (!_stopped && !_job->isBlocked() && !_queued) {
_queued = true;
auto task = makeLambdaTask([this]() { runJobInExecutor(); });
_executor.execute(CpuUsage::wrap(std::move(task), CpuUsage::Category::COMPACT));
}
}
void
MaintenanceJobRunner::runJobInExecutor()
{
{
Guard guard(_lock);
_queued = false;
if (_stopped) {
return;
}
_running = true;
}
bool finished = _job->run();
if (LOG_WOULD_LOG(debug)) {
LOG(debug,
"runJobInExecutor(): job='%s', task='%p'",
_job->getName().c_str(), this);
}
if (!finished) {
addExecutorTask();
}
{
Guard guard(_lock);
_running = false;
}
}
MaintenanceJobRunner::MaintenanceJobRunner(Executor &executor, IMaintenanceJob::UP job)
: _executor(executor),
_job(std::move(job)),
_stopped(false),
_queued(false),
_running(false),
_lock()
{
_job->registerRunner(this);
}
bool
MaintenanceJobRunner::isRunnable() const
{
Guard guard(_lock);
return _running || _queued;
}
} // namespace proton
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