Function reftable_ref_record_decode

reftable/record.c:360–437

}

static int reftable_ref_record_decode(void *rec, struct reftable_buf key,
				      uint8_t val_type, struct string_view in,
				      uint32_t hash_size, struct reftable_buf *scratch)
{
	struct reftable_ref_record *r = rec;
	struct string_view start = in;
	uint64_t update_index = 0;
	const char *refname = NULL;
	size_t refname_cap = 0;
	int n, err;

	n = get_var_int(&update_index, &in);
	if (n < 0)
		return n;
	string_view_consume(&in, n);

	REFTABLE_SWAP(refname, r->refname);
	REFTABLE_SWAP(refname_cap, r->refname_cap);
	reftable_ref_record_release(r);
	REFTABLE_SWAP(r->refname, refname);
	REFTABLE_SWAP(r->refname_cap, refname_cap);

	REFTABLE_ALLOC_GROW_OR_NULL(r->refname, key.len + 1, r->refname_cap);
	if (!r->refname) {
		err = REFTABLE_OUT_OF_MEMORY_ERROR;
		goto done;
	}
	memcpy(r->refname, key.buf, key.len);
	r->refname[key.len] = 0;

	r->update_index = update_index;
	r->value_type = val_type;
	switch (val_type) {
	case REFTABLE_REF_VAL1:
		if (in.len < hash_size) {
			err = REFTABLE_FORMAT_ERROR;
			goto done;
		}

		memcpy(r->value.val1, in.buf, hash_size);
		string_view_consume(&in, hash_size);
		break;

	case REFTABLE_REF_VAL2:
		if (in.len < 2 * hash_size) {
			err = REFTABLE_FORMAT_ERROR;
			goto done;
		}

		memcpy(r->value.val2.value, in.buf, hash_size);
		string_view_consume(&in, hash_size);

		memcpy(r->value.val2.target_value, in.buf, hash_size);
		string_view_consume(&in, hash_size);
		break;

	case REFTABLE_REF_SYMREF: {
		int n = decode_string(scratch, in);