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/**
* Copyright (C) 2023-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include <map>
#include <string>
#include "mongo/transport/grpc/metadata.h"
#include "mongo/util/net/hostandport.h"
#include "mongo/util/time_support.h"
namespace mongo::transport::grpc {
/**
* Base class modeling a gRPC ServerContext.
* See: https://grpc.github.io/grpc/cpp/classgrpc_1_1_server_context.html
*/
class ServerContext {
public:
virtual ~ServerContext() {}
/**
* Set the server's initial metadata.
* This must only be called before the first message is sent using the corresponding
* ServerStream.
*
* This method is not thread safe with respect to ServerStream::write().
*/
virtual void addInitialMetadataEntry(const std::string& key, const std::string& value) = 0;
virtual const MetadataView& getClientMetadata() const = 0;
virtual Date_t getDeadline() const = 0;
virtual HostAndPort getHostAndPort() const = 0;
/**
* Attempt to cancel the RPC this context is associated with. This may not have an effect if the
* RPC handler already returned a successful status to the client.
*
* This is thread-safe.
*/
virtual void tryCancel() = 0;
virtual bool isCancelled() const = 0;
};
} // namespace mongo::transport::grpc
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