Index: services/resource_coordinator/public/cpp/coordination_unit_id.cc |
diff --git a/services/resource_coordinator/public/cpp/coordination_unit_id.cc b/services/resource_coordinator/public/cpp/coordination_unit_id.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..5f5c518efecdb42d733d6662430608abe95fe2f4 |
--- /dev/null |
+++ b/services/resource_coordinator/public/cpp/coordination_unit_id.cc |
@@ -0,0 +1,31 @@ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "services/resource_coordinator/public/cpp/coordination_unit_id.h" |
+ |
+#include "base/logging.h" |
+#include "base/numerics/safe_conversions.h" |
+#include "third_party/smhasher/src/MurmurHash2.h" |
+ |
+namespace resource_coordinator { |
+ |
+// The seed to use when taking the murmur2 hash of the id. |
+const uint64_t kMurmur2HashSeed = 0; |
+ |
+CoordinationUnitID::CoordinationUnitID() |
+ : id(0), type(CoordinationUnitType::kInvalidType) {} |
+ |
+CoordinationUnitID::CoordinationUnitID(const CoordinationUnitType& type, |
+ const std::string& new_id) |
+ : type(type) { |
+ DCHECK(base::IsValueInRangeForNumericType<int>(new_id.size())); |
+ if (!new_id.empty()) { |
+ id = MurmurHash64A(&new_id.front(), static_cast<int>(new_id.size()), |
+ kMurmur2HashSeed); |
+ } else { |
+ id = 0; |
+ } |
+} |
+ |
+} // resource_coordinator |