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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "persistencethread.h"
#include "persistencehandler.h"
#include <vespa/storageframework/generic/thread/thread.h>
#include <thread>
#include <vespa/log/log.h>
LOG_SETUP(".persistence.thread");
namespace storage {
PersistenceThread::PersistenceThread(PersistenceHandler & persistenceHandler, FileStorHandler & fileStorHandler,
uint32_t stripeId, framework::Component & component)
: _persistenceHandler(persistenceHandler),
_fileStorHandler(fileStorHandler),
_stripeId(stripeId),
_thread()
{
_thread = component.startThread(*this, 60s, 1s, 1, vespalib::CpuUsage::Category::WRITE);
}
PersistenceThread::~PersistenceThread()
{
LOG(debug, "Shutting down persistence thread. Waiting for current operation to finish.");
_thread->interrupt();
LOG(debug, "Waiting for thread to terminate.");
_thread->join();
LOG(debug, "Persistence thread done with destruction");
}
void
PersistenceThread::run(framework::ThreadHandle& thread)
{
LOG(debug, "Started persistence thread");
vespalib::duration max_wait_time = vespalib::adjustTimeoutByDetectedHz(100ms);
while (!thread.interrupted()) {
vespalib::steady_time now = vespalib::steady_clock::now();
thread.registerTick(framework::UNKNOWN_CYCLE, now);
vespalib::steady_time deadline = now + max_wait_time;
FileStorHandler::LockedMessage lock(_fileStorHandler.getNextMessage(_stripeId, deadline));
if (lock.lock) {
_persistenceHandler.processLockedMessage(std::move(lock));
}
}
LOG(debug, "Closing down persistence thread");
}
void
PersistenceThread::flush()
{
//TODO Only need to check for this stripe.
while (_fileStorHandler.getQueueSize() != 0) {
std::this_thread::sleep_for(1ms);
}
}
} // storage
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