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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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 // This file contains routines for gathering resource statistics for processes | 5 // This file contains routines for gathering resource statistics for processes |
6 // running on the system. | 6 // running on the system. |
7 | 7 |
8 #ifndef BASE_PROCESS_PROCESS_METRICS_H_ | 8 #ifndef BASE_PROCESS_PROCESS_METRICS_H_ |
9 #define BASE_PROCESS_PROCESS_METRICS_H_ | 9 #define BASE_PROCESS_PROCESS_METRICS_H_ |
10 | 10 |
11 #include <stddef.h> | 11 #include <stddef.h> |
12 #include <stdint.h> | 12 #include <stdint.h> |
13 | 13 |
| 14 #include <memory> |
14 #include <string> | 15 #include <string> |
15 | 16 |
16 #include "base/base_export.h" | 17 #include "base/base_export.h" |
17 #include "base/gtest_prod_util.h" | 18 #include "base/gtest_prod_util.h" |
18 #include "base/macros.h" | 19 #include "base/macros.h" |
19 #include "base/process/process_handle.h" | 20 #include "base/process/process_handle.h" |
20 #include "base/time/time.h" | 21 #include "base/time/time.h" |
21 #include "base/values.h" | 22 #include "base/values.h" |
22 #include "build/build_config.h" | 23 #include "build/build_config.h" |
23 | 24 |
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96 // Provides performance metrics for a specified process (CPU usage, memory and | 97 // Provides performance metrics for a specified process (CPU usage, memory and |
97 // IO counters). Use CreateCurrentProcessMetrics() to get an instance for the | 98 // IO counters). Use CreateCurrentProcessMetrics() to get an instance for the |
98 // current process, or CreateProcessMetrics() to get an instance for an | 99 // current process, or CreateProcessMetrics() to get an instance for an |
99 // arbitrary process. Then, access the information with the different get | 100 // arbitrary process. Then, access the information with the different get |
100 // methods. | 101 // methods. |
101 class BASE_EXPORT ProcessMetrics { | 102 class BASE_EXPORT ProcessMetrics { |
102 public: | 103 public: |
103 ~ProcessMetrics(); | 104 ~ProcessMetrics(); |
104 | 105 |
105 // Creates a ProcessMetrics for the specified process. | 106 // Creates a ProcessMetrics for the specified process. |
106 // The caller owns the returned object. | |
107 #if !defined(OS_MACOSX) || defined(OS_IOS) | 107 #if !defined(OS_MACOSX) || defined(OS_IOS) |
108 static ProcessMetrics* CreateProcessMetrics(ProcessHandle process); | 108 static std::unique_ptr<ProcessMetrics> CreateProcessMetrics( |
| 109 ProcessHandle process); |
109 #else | 110 #else |
110 | 111 |
111 // The port provider needs to outlive the ProcessMetrics object returned by | 112 // The port provider needs to outlive the ProcessMetrics object returned by |
112 // this function. If NULL is passed as provider, the returned object | 113 // this function. If NULL is passed as provider, the returned object |
113 // only returns valid metrics if |process| is the current process. | 114 // only returns valid metrics if |process| is the current process. |
114 static ProcessMetrics* CreateProcessMetrics(ProcessHandle process, | 115 static std::unique_ptr<ProcessMetrics> CreateProcessMetrics( |
115 PortProvider* port_provider); | 116 ProcessHandle process, |
| 117 PortProvider* port_provider); |
116 #endif // !defined(OS_MACOSX) || defined(OS_IOS) | 118 #endif // !defined(OS_MACOSX) || defined(OS_IOS) |
117 | 119 |
118 // Creates a ProcessMetrics for the current process. This a cross-platform | 120 // Creates a ProcessMetrics for the current process. This a cross-platform |
119 // convenience wrapper for CreateProcessMetrics(). | 121 // convenience wrapper for CreateProcessMetrics(). |
120 // The caller owns the returned object. | 122 static std::unique_ptr<ProcessMetrics> CreateCurrentProcessMetrics(); |
121 static ProcessMetrics* CreateCurrentProcessMetrics(); | |
122 | 123 |
123 // Returns the current space allocated for the pagefile, in bytes (these pages | 124 // Returns the current space allocated for the pagefile, in bytes (these pages |
124 // may or may not be in memory). On Linux, this returns the total virtual | 125 // may or may not be in memory). On Linux, this returns the total virtual |
125 // memory size. | 126 // memory size. |
126 size_t GetPagefileUsage() const; | 127 size_t GetPagefileUsage() const; |
127 // Returns the peak space allocated for the pagefile, in bytes. | 128 // Returns the peak space allocated for the pagefile, in bytes. |
128 size_t GetPeakPagefileUsage() const; | 129 size_t GetPeakPagefileUsage() const; |
129 // Returns the current working set size, in bytes. On Linux, this returns | 130 // Returns the current working set size, in bytes. On Linux, this returns |
130 // the resident set size. | 131 // the resident set size. |
131 size_t GetWorkingSetSize() const; | 132 size_t GetWorkingSetSize() const; |
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423 SystemDiskInfo disk_info_; | 424 SystemDiskInfo disk_info_; |
424 #endif | 425 #endif |
425 #if defined(OS_CHROMEOS) | 426 #if defined(OS_CHROMEOS) |
426 SwapInfo swap_info_; | 427 SwapInfo swap_info_; |
427 #endif | 428 #endif |
428 }; | 429 }; |
429 | 430 |
430 } // namespace base | 431 } // namespace base |
431 | 432 |
432 #endif // BASE_PROCESS_PROCESS_METRICS_H_ | 433 #endif // BASE_PROCESS_PROCESS_METRICS_H_ |
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