30 File* OS::OpenFileForReading(const char* name) {  in OpenFileForReading()  argument
31   return OpenFileWithFlags(name, O_RDONLY);  in OpenFileForReading()
34 File* OS::OpenFileReadWrite(const char* name) {  in OpenFileReadWrite()  argument
35   return OpenFileWithFlags(name, O_RDWR);  in OpenFileReadWrite()
38 File* OS::CreateEmptyFile(const char* name) {  in CreateEmptyFile()  argument
39   return OpenFileWithFlags(name, O_RDWR | O_CREAT | O_TRUNC);  in CreateEmptyFile()
42 File* OS::OpenFileWithFlags(const char* name, int flags) {  in OpenFileWithFlags()  argument
43   CHECK(name != nullptr);  in OpenFileWithFlags()
45   if (!file->Open(name, flags, 0666)) {  in OpenFileWithFlags()
51 bool OS::FileExists(const char* name) {  in FileExists()  argument
53   if (stat(name, &st) == 0) {  in FileExists()
60 bool OS::DirectoryExists(const char* name) {  in DirectoryExists()  argument
62   if (stat(name, &st) == 0) {  in DirectoryExists()