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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/process/process_handle.h" | |
| 6 | |
| 7 #include "base/files/file_util.h" | |
| 8 #include "base/process/internal_linux.h" | |
| 9 | |
| 10 namespace base { | |
| 11 | |
| 12 ProcessId GetParentProcessId(ProcessHandle process) { | |
| 13 ProcessId pid = | |
| 14 internal::ReadProcStatsAndGetFieldAsInt64(process, internal::VM_PPID); | |
| 15 if (pid) | |
| 16 return pid; | |
| 17 return -1; | |
| 18 } | |
| 19 | |
| 20 FilePath GetProcessExecutablePath(ProcessHandle process) { | |
| 21 FilePath stat_file = internal::GetProcPidDir(process).Append("exe"); | |
| 22 FilePath exe_name; | |
| 23 if (!ReadSymbolicLink(stat_file, &exe_name)) { | |
| 24 // No such process. Happens frequently in e.g. TerminateAllChromeProcesses | |
| 25 return FilePath(); | |
| 26 } | |
| 27 return exe_name; | |
| 28 } | |
| 29 | |
| 30 } // namespace base | |
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