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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* \class storage::distributor::NodeInfo
* \ingroup distributor
*
* \brief Keeps track of node state for all storage nodes.
*/
#pragma once
#include <vector>
#include <vespa/vespalib/util/time.h>
namespace storage::framework{
struct Clock;
}
namespace storage::distributor {
class NodeInfo {
public:
explicit NodeInfo(const framework::Clock& clock) noexcept;
uint32_t getPendingCount(uint16_t idx) const;
bool isBusy(uint16_t idx) const;
void setBusy(uint16_t idx, vespalib::duration for_duration);
void incPending(uint16_t idx);
void decPending(uint16_t idx);
void clearPending(uint16_t idx);
private:
struct SingleNodeInfo {
SingleNodeInfo() noexcept : _pending(0), _busyUntilTime() {}
uint32_t _pending;
mutable vespalib::steady_time _busyUntilTime;
};
mutable std::vector<SingleNodeInfo> _nodes;
const framework::Clock& _clock;
const SingleNodeInfo& getNode(uint16_t idx) const;
SingleNodeInfo& getNode(uint16_t idx);
};
}
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