Import chromium-64.0.3282.140

base/process/process_handle_linux.cc

@@ -0,0 +1,39 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/process/process_handle.h"
+
+#include "base/files/file_util.h"
+#include "base/process/internal_linux.h"
+#if defined(OS_AIX)
+#include "base/process/internal_aix.h"
+#endif
+
+namespace base {
+
+ProcessId GetParentProcessId(ProcessHandle process) {
+  ProcessId pid =
+#if defined(OS_AIX)
+      internalAIX::ReadProcStatsAndGetFieldAsInt64(process,
+                                                   internalAIX::VM_PPID);
+#else
+      internal::ReadProcStatsAndGetFieldAsInt64(process, internal::VM_PPID);
+#endif
+  // TODO(zijiehe): Returns 0 if |process| does not have a parent process.
+  if (pid)
+    return pid;
+  return -1;
+}
+
+FilePath GetProcessExecutablePath(ProcessHandle process) {
+  FilePath stat_file = internal::GetProcPidDir(process).Append("exe");
+  FilePath exe_name;
+  if (!ReadSymbolicLink(stat_file, &exe_name)) {
+    // No such process.  Happens frequently in e.g. TerminateAllChromeProcesses
+    return FilePath();
+  }
+  return exe_name;
+}
+
+}  // namespace base