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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* @class storage::MessageSender
* @ingroup common
*
* @brief Interface to implement for classes which send messages on for others.
*
* Used for instance by filestor manager. Filestor threads needs to send
* messages through the filemanager. The filestor manager thus implements this
* interface and gives to the filestor thread.
*
* @author H�kon Humberset
* @date 2006-03-22
* @version $Id$
*/
#pragma once
#include <memory>
namespace storage::api {
class StorageCommand;
class StorageReply;
class StorageMessage;
}
namespace storage {
struct MessageSender {
virtual ~MessageSender() = default;
virtual void sendCommand(const std::shared_ptr<api::StorageCommand>&) = 0;
virtual void sendReply(const std::shared_ptr<api::StorageReply>&) = 0;
// By calling this you certify that it can continue in same thread or be dispatched.
virtual void sendReplyDirectly(const std::shared_ptr<api::StorageReply>&);
void send(const std::shared_ptr<api::StorageMessage>&);
};
struct ChainedMessageSender {
virtual ~ChainedMessageSender() = default;
virtual void sendUp(const std::shared_ptr<api::StorageMessage>&) = 0;
virtual void sendDown(const std::shared_ptr<api::StorageMessage>&) = 0;
};
/**
* Interface to send messages "up" that bypasses message tracking.
*/
class NonTrackingMessageSender {
public:
virtual ~NonTrackingMessageSender() = default;
virtual void send_up_without_tracking(const std::shared_ptr<api::StorageMessage>&) = 0;
};
} // storage
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