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 GetParentProcessId(ProcessHandle process)12ProcessId GetParentProcessId(ProcessHandle process) { 13 ProcessId pid = 14 internal::ReadProcStatsAndGetFieldAsInt64(process, internal::VM_PPID); 15 if (pid) 16 return pid; 17 return -1; 18 } 19 GetProcessExecutablePath(ProcessHandle process)20FilePath 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 31