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36f4dc9251
Build id is an optional unique identifier specified during cdc_rsync build via CDC_BUILD_VERSION definition. If build id specified on both client and server components it will be used to check the version of server component instead of file size + modified time.
73 lines
2.7 KiB
C++
73 lines
2.7 KiB
C++
/*
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* Copyright 2022 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef COMMON_GAMELET_COMPONENT_H_
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#define COMMON_GAMELET_COMPONENT_H_
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#include <string>
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#include <vector>
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#include "absl/status/status.h"
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namespace cdc_ft {
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// Provides functionality to check the freshness of gamelet components.
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// The components are considered fresh if both the timestamp and the file size
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// match.
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struct GameletComponent {
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std::string build_version;
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std::string filename;
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uint64_t size;
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int64_t modified_time;
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GameletComponent(std::string build_version, std::string filename,
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uint64_t size, time_t modified_time);
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~GameletComponent();
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bool operator==(const GameletComponent& other) const;
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bool operator!=(const GameletComponent& other) const;
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// Gets the list of gamelet |components| from the given |component_paths|.
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// Returns false if any of the components does not exist or cannot be stat'ed.
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static absl::Status Get(const std::vector<std::string> component_paths,
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std::vector<GameletComponent>* components);
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// Serializes the list of gamelet |components| as command line options.
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// This should be called on the workstation. The resulting command line
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// should be passed to the gamelet process.
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static std::string ToCommandLineArgs(
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const std::vector<GameletComponent>& components);
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// Deserializes the list of gamelet components from command line options.
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// This should be called in the gamelet process to retrieve the workstation
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// components, which can then be compared to the gamelet components to check
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// freshness.
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static std::vector<GameletComponent> FromCommandLineArgs(int argc,
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const char** argv);
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// Deserializes the list of gamelet components from a |components_arg| string
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// as it is returned by ToCommandLineArgs().
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// This should be called in the gamelet process to retrieve the workstation
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// components, which can then be compared to the gamelet components to check
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// freshness.
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static std::vector<GameletComponent> FromCommandLineArgs(
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const std::string& components_arg);
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};
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} // namespace cdc_ft
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#endif // COMMON_GAMELET_COMPONENT_H_
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