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_EDK_SYSTEM_PORTS_NAME_H_ 6 #define MOJO_EDK_SYSTEM_PORTS_NAME_H_ 7 8 #include <stdint.h> 9 10 #include <ostream> 11 #include <tuple> 12 13 #include "base/hash.h" 14 15 namespace mojo { 16 namespace edk { 17 namespace ports { 18 19 struct Name { NameName20 Name(uint64_t v1, uint64_t v2) : v1(v1), v2(v2) {} 21 uint64_t v1, v2; 22 }; 23 24 inline bool operator==(const Name& a, const Name& b) { 25 return a.v1 == b.v1 && a.v2 == b.v2; 26 } 27 28 inline bool operator!=(const Name& a, const Name& b) { 29 return !(a == b); 30 } 31 32 inline bool operator<(const Name& a, const Name& b) { 33 return std::tie(a.v1, a.v2) < std::tie(b.v1, b.v2); 34 } 35 36 std::ostream& operator<<(std::ostream& stream, const Name& name); 37 38 struct PortName : Name { PortNamePortName39 PortName() : Name(0, 0) {} PortNamePortName40 PortName(uint64_t v1, uint64_t v2) : Name(v1, v2) {} 41 }; 42 43 const PortName kInvalidPortName = {0, 0}; 44 45 struct NodeName : Name { NodeNameNodeName46 NodeName() : Name(0, 0) {} NodeNameNodeName47 NodeName(uint64_t v1, uint64_t v2) : Name(v1, v2) {} 48 }; 49 50 const NodeName kInvalidNodeName = {0, 0}; 51 52 } // namespace ports 53 } // namespace edk 54 } // namespace mojo 55 56 namespace std { 57 58 template <> 59 struct hash<mojo::edk::ports::PortName> { 60 std::size_t operator()(const mojo::edk::ports::PortName& name) const { 61 return base::HashInts64(name.v1, name.v2); 62 } 63 }; 64 65 template <> 66 struct hash<mojo::edk::ports::NodeName> { 67 std::size_t operator()(const mojo::edk::ports::NodeName& name) const { 68 return base::HashInts64(name.v1, name.v2); 69 } 70 }; 71 72 } // namespace std 73 74 #endif // MOJO_EDK_SYSTEM_PORTS_NAME_H_ 75