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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef BASE_TRACE_EVENT_MEMORY_ALLOCATOR_DUMP_GUID_H_ | 5 #ifndef BASE_TRACE_EVENT_MEMORY_ALLOCATOR_DUMP_GUID_H_ |
6 #define BASE_TRACE_EVENT_MEMORY_ALLOCATOR_DUMP_GUID_H_ | 6 #define BASE_TRACE_EVENT_MEMORY_ALLOCATOR_DUMP_GUID_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/base_export.h" | 10 #include "base/base_export.h" |
11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
12 | 12 |
13 namespace base { | 13 namespace base { |
14 namespace trace_event { | 14 namespace trace_event { |
15 | 15 |
16 class BASE_EXPORT MemoryAllocatorDumpGuid { | 16 class BASE_EXPORT MemoryAllocatorDumpGuid { |
17 public: | 17 public: |
18 MemoryAllocatorDumpGuid(); | 18 MemoryAllocatorDumpGuid(); |
19 explicit MemoryAllocatorDumpGuid(uint64 guid); | 19 explicit MemoryAllocatorDumpGuid(uint64 guid); |
20 | 20 |
21 // Utility ctor to hash a GUID if the caller prefers a string. The caller | 21 // Utility ctor to hash a GUID if the caller prefers a string. The caller |
22 // still has to ensure that |guid_str| is unique, per snapshot, within the | 22 // still has to ensure that |guid_str| is unique, per snapshot, within the |
23 // global scope of all the traced processes. | 23 // global scope of all the traced processes. |
24 explicit MemoryAllocatorDumpGuid(const std::string& guid_str); | 24 explicit MemoryAllocatorDumpGuid(const std::string& guid_str); |
25 | 25 |
| 26 uint64 ToUint64() const { return guid_; } |
| 27 |
26 // Returns a (hex-encoded) string representation of the guid. | 28 // Returns a (hex-encoded) string representation of the guid. |
27 std::string ToString() const; | 29 std::string ToString() const; |
28 | 30 |
29 bool empty() const { return guid_ == 0u; } | 31 bool empty() const { return guid_ == 0u; } |
30 | 32 |
31 bool operator==(const MemoryAllocatorDumpGuid& other) const { | 33 bool operator==(const MemoryAllocatorDumpGuid& other) const { |
32 return guid_ == other.guid_; | 34 return guid_ == other.guid_; |
33 } | 35 } |
34 | 36 |
35 bool operator!=(const MemoryAllocatorDumpGuid& other) const { | 37 bool operator!=(const MemoryAllocatorDumpGuid& other) const { |
36 return !(*this == other); | 38 return !(*this == other); |
37 } | 39 } |
38 | 40 |
39 private: | 41 private: |
40 uint64 guid_; | 42 uint64 guid_; |
41 | 43 |
42 // Deliberately copy-able. | 44 // Deliberately copy-able. |
43 }; | 45 }; |
44 | 46 |
45 } // namespace trace_event | 47 } // namespace trace_event |
46 } // namespace base | 48 } // namespace base |
47 | 49 |
48 #endif // BASE_TRACE_EVENT_MEMORY_ALLOCATOR_DUMP_GUID_H_ | 50 #endif // BASE_TRACE_EVENT_MEMORY_ALLOCATOR_DUMP_GUID_H_ |
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