src/base/atomicio.cc

44         ssize_t result = read(fd, p + pos, n - pos);
48         if (result == 0)
53         if (result == -1) {
56             return result;
59         pos += result;
73         ssize_t result = write(fd, p + pos, n - pos);
77         if (result == 0)
82         if (result == -1) {
85             return result;
88         pos += result;