Function pn_buffer_trim

c/src/core/buffer.c:194–210

}

int pn_buffer_trim(pn_buffer_t *buf, size_t left, size_t right)
{
  if (left + right > buf->size) return PN_ARG_ERR;

  // In special case where we trim everything just clear buffer
  if (left + right == buf->size) {
    pn_buffer_clear(buf);
    return 0;
  }
  buf->start += left;
  if (buf->start >= buf->capacity)
    buf->start -= buf->capacity;

  buf->size -= left + right;

  return 0;
}

void pn_buffer_clear(pn_buffer_t *buf)
{