Method copy

src/common/buffer.cc:286–290

  };

  ceph::unique_leakable_ptr<buffer::raw> buffer::copy(const char *c, unsigned len) {
    auto r = buffer::create_aligned(len, sizeof(size_t));
    memcpy(r->get_data(), c, len);
    return r;
  }

  ceph::unique_leakable_ptr<buffer::raw> buffer::create(unsigned len) {
    return buffer::create_aligned(len, sizeof(size_t));