Function pn_buffer_get

c/src/core/buffer.c:169–192

}

size_t pn_buffer_get(pn_buffer_t *buf, size_t offset, size_t size, char *dst)
{
  size = pn_min(size, buf->size);
  size_t start = pni_buffer_index(buf, offset);
  size_t stop = pni_buffer_index(buf, offset + size);

  if (size == 0) return 0;

  size_t sz1;
  size_t sz2;

  if (start >= stop) {
    sz1 = buf->capacity - start;
    sz2 = stop;
  } else {
    sz1 = stop - start;
    sz2 = 0;
  }

  memcpy(dst, buf->bytes + start, sz1);
  memcpy(dst + sz1, buf->bytes, sz2);

  return sz1 + sz2;
}

int pn_buffer_trim(pn_buffer_t *buf, size_t left, size_t right)
{