48   if (FtraceProcfs::g_kmesg_fd != -1)  in KernelLogWrite()
49     base::ignore_result(write(FtraceProcfs::g_kmesg_fd, s, strlen(s)));  in KernelLogWrite()
55 int FtraceProcfs::g_kmesg_fd = -1;  // Set by ProbesMain() in probes.cc .
58 std::unique_ptr<FtraceProcfs> FtraceProcfs::Create(const std::string& root) {  in Create()
62   return std::unique_ptr<FtraceProcfs>(new FtraceProcfs(root));  in Create()
65 FtraceProcfs::FtraceProcfs(const std::string& root) : root_(root) {}  in FtraceProcfs()  function in perfetto::FtraceProcfs
66 FtraceProcfs::~FtraceProcfs() = default;
68 bool FtraceProcfs::EnableEvent(const std::string& group,  in EnableEvent()
74 bool FtraceProcfs::DisableEvent(const std::string& group,  in DisableEvent()
80 bool FtraceProcfs::DisableAllEvents() {  in DisableAllEvents()
85 std::string FtraceProcfs::ReadEventFormat(const std::string& group,  in ReadEventFormat()
91 std::string FtraceProcfs::ReadCpuStats(size_t cpu) const {  in ReadCpuStats()
96 size_t FtraceProcfs::NumberOfCpus() const {  in NumberOfCpus()
101 void FtraceProcfs::ClearTrace() {  in ClearTrace()
106 bool FtraceProcfs::WriteTraceMarker(const std::string& str) {  in WriteTraceMarker()
111 bool FtraceProcfs::SetCpuBufferSizeInPages(size_t pages) {  in SetCpuBufferSizeInPages()
120 bool FtraceProcfs::EnableTracing() {  in EnableTracing()
126 bool FtraceProcfs::DisableTracing() {  in DisableTracing()
132 bool FtraceProcfs::SetTracingOn(bool enable) {  in SetTracingOn()
136 bool FtraceProcfs::IsTracingEnabled() {  in IsTracingEnabled()
141 bool FtraceProcfs::SetClock(const std::string& clock_name) {  in SetClock()
146 std::string FtraceProcfs::GetClock() {  in GetClock()
161 std::set<std::string> FtraceProcfs::AvailableClocks() {  in AvailableClocks()
192 bool FtraceProcfs::WriteNumberToFile(const std::string& path, size_t value) {  in WriteNumberToFile()
201 bool FtraceProcfs::WriteToFile(const std::string& path,  in WriteToFile()
213 base::ScopedFile FtraceProcfs::OpenPipeForCpu(size_t cpu) {  in OpenPipeForCpu()
219 char FtraceProcfs::ReadOneCharFromFile(const std::string& path) {  in ReadOneCharFromFile()
228 bool FtraceProcfs::ClearFile(const std::string& path) {  in ClearFile()
233 std::string FtraceProcfs::ReadFileIntoString(const std::string& path) const {  in ReadFileIntoString()
244 bool FtraceProcfs::CheckRootPath(const std::string& root) {  in CheckRootPath()