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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 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 #include "base/process/process_info.h" | 5 #include "base/process/process_info.h" |
6 | 6 |
7 #include <stdint.h> | 7 #include <stdint.h> |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/process/internal_linux.h" | 10 #include "base/process/internal_linux.h" |
11 #include "base/process/process_handle.h" | 11 #include "base/process/process_handle.h" |
12 #include "base/time/time.h" | 12 #include "base/time/time.h" |
13 | 13 |
14 namespace base { | 14 namespace base { |
15 | 15 |
16 // static | 16 // static |
17 const Time CurrentProcessInfo::CreationTime() { | 17 const Time CurrentProcessInfo::CreationTime() { |
18 ProcessHandle pid = GetCurrentProcessHandle(); | |
19 int64_t start_ticks = | 18 int64_t start_ticks = |
20 internal::ReadProcStatsAndGetFieldAsInt64(pid, internal::VM_STARTTIME); | 19 internal::ReadProcSelfStatsAndGetFieldAsInt64(internal::VM_STARTTIME); |
21 DCHECK(start_ticks); | 20 DCHECK(start_ticks); |
22 TimeDelta start_offset = internal::ClockTicksToTimeDelta(start_ticks); | 21 TimeDelta start_offset = internal::ClockTicksToTimeDelta(start_ticks); |
23 Time boot_time = internal::GetBootTime(); | 22 Time boot_time = internal::GetBootTime(); |
24 DCHECK(!boot_time.is_null()); | 23 DCHECK(!boot_time.is_null()); |
25 return Time(boot_time + start_offset); | 24 return Time(boot_time + start_offset); |
26 } | 25 } |
27 | 26 |
28 } // namespace base | 27 } // namespace base |
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