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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 #include "base/sys_info.h" | 5 #include "base/sys_info.h" |
6 | 6 |
7 #include "base/time.h" | 7 #include "base/time/time.h" |
8 | 8 |
9 namespace base { | 9 namespace base { |
10 | 10 |
11 // static | 11 // static |
12 int64 SysInfo::Uptime() { | 12 int64 SysInfo::Uptime() { |
13 // This code relies on an implementation detail of TimeTicks::Now() - that | 13 // This code relies on an implementation detail of TimeTicks::Now() - that |
14 // its return value happens to coincide with the system uptime value in | 14 // its return value happens to coincide with the system uptime value in |
15 // microseconds, on Win/Mac/iOS/Linux/ChromeOS and Android. | 15 // microseconds, on Win/Mac/iOS/Linux/ChromeOS and Android. |
16 int64 uptime_in_microseconds = TimeTicks::Now().ToInternalValue(); | 16 int64 uptime_in_microseconds = TimeTicks::Now().ToInternalValue(); |
17 return uptime_in_microseconds / 1000; | 17 return uptime_in_microseconds / 1000; |
18 } | 18 } |
19 | 19 |
20 } // namespace base | 20 } // namespace base |
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