142     int64_t n = TEMP_FAILURE_RETRY(read(file.Fd(), &buf[0], buf.size()));  in ReadFileToString()  local
143     if (n == -1) {  in ReadFileToString()
146     if (n == 0) {  in ReadFileToString()
149     result->append(&buf[0], n);  in ReadFileToString()
164     int64_t n = TEMP_FAILURE_RETRY(read(file.Fd(), &buf[filled_to], kBufSize - filled_to));  in PrintFileToLog()  local
165     if (n <= 0) {  in PrintFileToLog()
171       return n == 0;  in PrintFileToLog()
176     for (; i < filled_to + n; ++i) {  in PrintFileToLog()
182         if (i + 1 < filled_to + n) {  in PrintFileToLog()
183           memmove(&buf[0], &buf[i + 1], filled_to + n - i - 1);  in PrintFileToLog()
184           filled_to = filled_to + n - i - 1;  in PrintFileToLog()
195       filled_to += n;  in PrintFileToLog()