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-rw-r--r--payload_generator/graph_utils.h54
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diff --git a/payload_generator/graph_utils.h b/payload_generator/graph_utils.h
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-//
-// Copyright (C) 2009 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-#ifndef UPDATE_ENGINE_PAYLOAD_GENERATOR_GRAPH_UTILS_H_
-#define UPDATE_ENGINE_PAYLOAD_GENERATOR_GRAPH_UTILS_H_
-
-#include <vector>
-
-#include <base/macros.h>
-
-#include "update_engine/payload_generator/graph_types.h"
-#include "update_engine/update_metadata.pb.h"
-
-// A few utility functions for graphs
-
-namespace chromeos_update_engine {
-
-namespace graph_utils {
-
-// Returns the number of blocks represented by all extents in the edge.
-uint64_t EdgeWeight(const Graph& graph, const Edge& edge);
-
-// These add a read-before dependency from graph[src] -> graph[dst]. If the dep
-// already exists, the block/s is/are added to the existing edge.
-void AddReadBeforeDep(Vertex* src, Vertex::Index dst, uint64_t block);
-void AddReadBeforeDepExtents(Vertex* src,
- Vertex::Index dst,
- const std::vector<Extent>& extents);
-
-void DropWriteBeforeDeps(Vertex::EdgeMap* edge_map);
-
-// For each node N in graph, drop all edges N->|index|.
-void DropIncomingEdgesTo(Graph* graph, Vertex::Index index);
-
-void DumpGraph(const Graph& graph);
-
-} // namespace graph_utils
-
-} // namespace chromeos_update_engine
-
-#endif // UPDATE_ENGINE_PAYLOAD_GENERATOR_GRAPH_UTILS_H_