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-rw-r--r--payload_generator/graph_utils.cc142
1 files changed, 0 insertions, 142 deletions
diff --git a/payload_generator/graph_utils.cc b/payload_generator/graph_utils.cc
deleted file mode 100644
index 7f5cf8fb..00000000
--- a/payload_generator/graph_utils.cc
+++ /dev/null
@@ -1,142 +0,0 @@
-//
-// 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.
-//
-
-#include "update_engine/payload_generator/graph_utils.h"
-
-#include <string>
-#include <utility>
-#include <vector>
-
-#include <base/logging.h>
-#include <base/macros.h>
-
-#include "update_engine/payload_consumer/payload_constants.h"
-#include "update_engine/payload_generator/annotated_operation.h"
-#include "update_engine/payload_generator/extent_utils.h"
-
-using std::make_pair;
-using std::pair;
-using std::string;
-using std::vector;
-
-namespace chromeos_update_engine {
-namespace graph_utils {
-
-uint64_t EdgeWeight(const Graph& graph, const Edge& edge) {
- uint64_t weight = 0;
- const vector<Extent>& extents =
- graph[edge.first].out_edges.find(edge.second)->second.extents;
- for (vector<Extent>::const_iterator it = extents.begin(); it != extents.end();
- ++it) {
- if (it->start_block() != kSparseHole)
- weight += it->num_blocks();
- }
- return weight;
-}
-
-void AddReadBeforeDep(Vertex* src, Vertex::Index dst, uint64_t block) {
- Vertex::EdgeMap::iterator edge_it = src->out_edges.find(dst);
- if (edge_it == src->out_edges.end()) {
- // Must create new edge
- pair<Vertex::EdgeMap::iterator, bool> result =
- src->out_edges.insert(make_pair(dst, EdgeProperties()));
- CHECK(result.second);
- edge_it = result.first;
- }
- AppendBlockToExtents(&edge_it->second.extents, block);
-}
-
-void AddReadBeforeDepExtents(Vertex* src,
- Vertex::Index dst,
- const vector<Extent>& extents) {
- // TODO(adlr): Be more efficient than adding each block individually.
- for (vector<Extent>::const_iterator it = extents.begin(), e = extents.end();
- it != e;
- ++it) {
- const Extent& extent = *it;
- for (uint64_t block = extent.start_block(),
- block_end = extent.start_block() + extent.num_blocks();
- block != block_end;
- ++block) {
- AddReadBeforeDep(src, dst, block);
- }
- }
-}
-
-void DropWriteBeforeDeps(Vertex::EdgeMap* edge_map) {
- // Specially crafted for-loop for the map-iterate-delete dance.
- for (Vertex::EdgeMap::iterator it = edge_map->begin();
- it != edge_map->end();) {
- if (!it->second.write_extents.empty())
- it->second.write_extents.clear();
- if (it->second.extents.empty()) {
- // Erase *it, as it contains no blocks
- edge_map->erase(it++);
- } else {
- ++it;
- }
- }
-}
-
-// For each node N in graph, drop all edges N->|index|.
-void DropIncomingEdgesTo(Graph* graph, Vertex::Index index) {
- // This would be much more efficient if we had doubly-linked
- // edges in the graph.
- for (Graph::iterator it = graph->begin(), e = graph->end(); it != e; ++it) {
- it->out_edges.erase(index);
- }
-}
-
-namespace {
-template <typename T>
-void DumpExtents(const T& field, int prepend_space_count) {
- string header(prepend_space_count, ' ');
- for (const auto& extent : field) {
- LOG(INFO) << header << "(" << extent.start_block() << ", "
- << extent.num_blocks() << ")";
- }
-}
-
-void DumpOutEdges(const Vertex::EdgeMap& out_edges) {
- for (Vertex::EdgeMap::const_iterator it = out_edges.begin(),
- e = out_edges.end();
- it != e;
- ++it) {
- LOG(INFO) << " " << it->first << " read-before:";
- DumpExtents(it->second.extents, 6);
- LOG(INFO) << " write-before:";
- DumpExtents(it->second.write_extents, 6);
- }
-}
-} // namespace
-
-void DumpGraph(const Graph& graph) {
- LOG(INFO) << "Graph length: " << graph.size();
- for (Graph::size_type i = 0, e = graph.size(); i != e; ++i) {
- LOG(INFO) << i << (graph[i].valid ? "" : "-INV") << ": "
- << graph[i].aop.name << ": "
- << InstallOperationTypeName(graph[i].aop.op.type());
- LOG(INFO) << " src_extents:";
- DumpExtents(graph[i].aop.op.src_extents(), 4);
- LOG(INFO) << " dst_extents:";
- DumpExtents(graph[i].aop.op.dst_extents(), 4);
- LOG(INFO) << " out edges:";
- DumpOutEdges(graph[i].out_edges);
- }
-}
-
-} // namespace graph_utils
-} // namespace chromeos_update_engine