Function pn_buffer_clear

c/src/core/buffer.c:212–216

}

void pn_buffer_clear(pn_buffer_t *buf)
{
  buf->start = 0;
  buf->size = 0;
}

static void pn_buffer_rotate (pn_buffer_t *buf, size_t sz) {
  if (sz == 0) return;