Function compressor_init

freebsd/kern/subr_compressor.c:510–535

}

struct compressor *
compressor_init(compressor_cb_t cb, int format, size_t maxiosize, int level,
    void *arg)
{
	struct compressor_methods **iter;
	struct compressor *s;
	void *priv;

	SET_FOREACH(iter, compressors) {
		if ((*iter)->format == format)
			break;
	}
	if (iter == SET_LIMIT(compressors))
		return (NULL);

	priv = (*iter)->init(maxiosize, level);
	if (priv == NULL)
		return (NULL);

	s = malloc(sizeof(*s), M_COMPRESS, M_WAITOK | M_ZERO);
	s->methods = (*iter);
	s->priv = priv;
	s->cb = cb;
	s->arg = arg;
	return (s);
}

void
compressor_reset(struct compressor *stream)