52   ssize_t read = 0;  in ReadExact()  local
54     read = fd->Read((void*)&(buf[total_read]), size - total_read);  in ReadExact()
55     if (read <= 0) {  in ReadExact()
56       if (read < 0) {  in ReadExact()
58         return read;  in ReadExact()
62     total_read += read;  in ReadExact()
70   ssize_t read;  in ReadAll()  local
71   while ((read = fd->Read(buff, BUFF_SIZE - 1)) > 0) {  in ReadAll()
73     ss << std::string(buff, read);  in ReadAll()
75   if (read < 0) {  in ReadAll()
77     return read;  in ReadAll()