Index: systrace/atrace_helper/jni/procfs_utils.h |
diff --git a/systrace/atrace_helper/jni/procfs_utils.h b/systrace/atrace_helper/jni/procfs_utils.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..8e9908ac7434936085a0890490dbcb64945346b0 |
--- /dev/null |
+++ b/systrace/atrace_helper/jni/procfs_utils.h |
@@ -0,0 +1,27 @@ |
+// Copyright 2017 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. |
+ |
+#ifndef PROCFS_UTILS_H_ |
+#define PROCFS_UTILS_H_ |
+ |
+#include <memory> |
+#include <string> |
+ |
+#include "process_info.h" |
+ |
+namespace procfs_utils { |
+ |
+// ProcFS doesn't necessarly distinguish PID vs. TID, but all threads of a |
+// process have the same Thread Group ID which is equal to Process ID. |
+int ReadTgid(int pid); |
+ |
+std::unique_ptr<ProcessInfo> ReadProcessInfo(int pid); |
+void ReadProcessThreads(ProcessInfo* process); |
+ |
+bool ReadOomStats(ProcessSnapshot* snapshot); |
+bool ReadPageFaultsAndCpuTimeStats(ProcessSnapshot* snapshot); |
+ |
+} // namespace procfs_utils |
+ |
+#endif // PROCFS_UTILS_H_ |