1 // Copyright 2016 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 #ifndef MOJO_CORE_PORTS_NAME_H_ 6 #define MOJO_CORE_PORTS_NAME_H_ 7 8 #include <stdint.h> 9 10 #include <ostream> 11 #include <tuple> 12 13 #include "base/component_export.h" 14 #include "base/hash.h" 15 16 namespace mojo { 17 namespace core { 18 namespace ports { 19 20 struct COMPONENT_EXPORT(MOJO_CORE_PORTS) Name { 21 Name(uint64_t v1, uint64_t v2) : v1(v1), v2(v2) {} 22 uint64_t v1, v2; 23 }; 24 25 inline bool operator==(const Name& a, const Name& b) { 26 return a.v1 == b.v1 && a.v2 == b.v2; 27 } 28 29 inline bool operator!=(const Name& a, const Name& b) { 30 return !(a == b); 31 } 32 33 inline bool operator<(const Name& a, const Name& b) { 34 return std::tie(a.v1, a.v2) < std::tie(b.v1, b.v2); 35 } 36 37 COMPONENT_EXPORT(MOJO_CORE_PORTS) 38 std::ostream& operator<<(std::ostream& stream, const Name& name); 39 40 struct COMPONENT_EXPORT(MOJO_CORE_PORTS) PortName : Name { 41 PortName() : Name(0, 0) {} 42 PortName(uint64_t v1, uint64_t v2) : Name(v1, v2) {} 43 }; 44 45 extern COMPONENT_EXPORT(MOJO_CORE_PORTS) const PortName kInvalidPortName; 46 47 struct COMPONENT_EXPORT(MOJO_CORE_PORTS) NodeName : Name { 48 NodeName() : Name(0, 0) {} 49 NodeName(uint64_t v1, uint64_t v2) : Name(v1, v2) {} 50 }; 51 52 extern COMPONENT_EXPORT(MOJO_CORE_PORTS) const NodeName kInvalidNodeName; 53 54 } // namespace ports 55 } // namespace core 56 } // namespace mojo 57 58 namespace std { 59 60 template <> 61 struct COMPONENT_EXPORT(MOJO_CORE_PORTS) hash<mojo::core::ports::PortName> { 62 std::size_t operator()(const mojo::core::ports::PortName& name) const { 63 return base::HashInts64(name.v1, name.v2); 64 } 65 }; 66 67 template <> 68 struct COMPONENT_EXPORT(MOJO_CORE_PORTS) hash<mojo::core::ports::NodeName> { 69 std::size_t operator()(const mojo::core::ports::NodeName& name) const { 70 return base::HashInts64(name.v1, name.v2); 71 } 72 }; 73 74 } // namespace std 75 76 #endif // MOJO_CORE_PORTS_NAME_H_ 77
