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Side by Side Diff: services/resource_coordinator/public/cpp/coordination_unit_id.cc

Issue 2856173003: Revert of Global Resource Coordinator: Basic service internals (Closed)
Patch Set: Created 3 years, 7 months ago
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1 // Copyright 2017 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "services/resource_coordinator/public/cpp/coordination_unit_id.h"
6
7 #include "base/logging.h"
8 #include "base/numerics/safe_conversions.h"
9 #include "third_party/smhasher/src/MurmurHash2.h"
10
11 namespace resource_coordinator {
12
13 // The seed to use when taking the murmur2 hash of the id.
14 const uint64_t kMurmur2HashSeed = 0;
15
16 CoordinationUnitID::CoordinationUnitID()
17 : id(0), type(CoordinationUnitType::kInvalidType) {}
18
19 CoordinationUnitID::CoordinationUnitID(const CoordinationUnitType& type,
20 const std::string& new_id)
21 : type(type) {
22 DCHECK(base::IsValueInRangeForNumericType<int>(new_id.size()));
23 if (!new_id.empty()) {
24 id = MurmurHash64A(&new_id.front(), static_cast<int>(new_id.size()),
25 kMurmur2HashSeed);
26 } else {
27 id = 0;
28 }
29 }
30
31 } // resource_coordinator
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