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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 <stdint.h> |
| 9 |
| 8 #include <string> | 10 #include <string> |
| 9 | 11 |
| 10 #include "base/base_export.h" | 12 #include "base/base_export.h" |
| 11 #include "base/basictypes.h" | |
| 12 | 13 |
| 13 namespace base { | 14 namespace base { |
| 14 namespace trace_event { | 15 namespace trace_event { |
| 15 | 16 |
| 16 class BASE_EXPORT MemoryAllocatorDumpGuid { | 17 class BASE_EXPORT MemoryAllocatorDumpGuid { |
| 17 public: | 18 public: |
| 18 MemoryAllocatorDumpGuid(); | 19 MemoryAllocatorDumpGuid(); |
| 19 explicit MemoryAllocatorDumpGuid(uint64 guid); | 20 explicit MemoryAllocatorDumpGuid(uint64_t guid); |
| 20 | 21 |
| 21 // Utility ctor to hash a GUID if the caller prefers a string. The caller | 22 // 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 | 23 // still has to ensure that |guid_str| is unique, per snapshot, within the |
| 23 // global scope of all the traced processes. | 24 // global scope of all the traced processes. |
| 24 explicit MemoryAllocatorDumpGuid(const std::string& guid_str); | 25 explicit MemoryAllocatorDumpGuid(const std::string& guid_str); |
| 25 | 26 |
| 26 uint64 ToUint64() const { return guid_; } | 27 uint64_t ToUint64() const { return guid_; } |
| 27 | 28 |
| 28 // Returns a (hex-encoded) string representation of the guid. | 29 // Returns a (hex-encoded) string representation of the guid. |
| 29 std::string ToString() const; | 30 std::string ToString() const; |
| 30 | 31 |
| 31 bool empty() const { return guid_ == 0u; } | 32 bool empty() const { return guid_ == 0u; } |
| 32 | 33 |
| 33 bool operator==(const MemoryAllocatorDumpGuid& other) const { | 34 bool operator==(const MemoryAllocatorDumpGuid& other) const { |
| 34 return guid_ == other.guid_; | 35 return guid_ == other.guid_; |
| 35 } | 36 } |
| 36 | 37 |
| 37 bool operator!=(const MemoryAllocatorDumpGuid& other) const { | 38 bool operator!=(const MemoryAllocatorDumpGuid& other) const { |
| 38 return !(*this == other); | 39 return !(*this == other); |
| 39 } | 40 } |
| 40 | 41 |
| 41 private: | 42 private: |
| 42 uint64 guid_; | 43 uint64_t guid_; |
| 43 | 44 |
| 44 // Deliberately copy-able. | 45 // Deliberately copy-able. |
| 45 }; | 46 }; |
| 46 | 47 |
| 47 } // namespace trace_event | 48 } // namespace trace_event |
| 48 } // namespace base | 49 } // namespace base |
| 49 | 50 |
| 50 #endif // BASE_TRACE_EVENT_MEMORY_ALLOCATOR_DUMP_GUID_H_ | 51 #endif // BASE_TRACE_EVENT_MEMORY_ALLOCATOR_DUMP_GUID_H_ |
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