inline ref_type to_ref(int_fast64_t v) noexcept
{
REALM_ASSERT_DEBUG(!util::int_cast_has_overflow<ref_type>(v));
// Check that v is divisible by 8 (64-bit aligned).
REALM_ASSERT_DEBUG(v % 8 == 0);
return ref_type(v);
}
static T get_null_float() {
typename std::conditional<std::is_same<T, float>::value, uint32_t, uint64_t>::type i;
int64_t double_nan = 0x7ff80000000000aa;
i = std::is_same<T, float>::value ? 0x7fc000aa : static_cast<decltype(i)>(double_nan);
T d = type_punning<T, decltype(i)>(i);
REALM_ASSERT_DEBUG(std::isnan(static_cast<double>(d)));
REALM_ASSERT_DEBUG(!is_signaling(d));
return d;
}
inline BinaryData BinaryColumn::get(size_t ndx) const noexcept
{
REALM_ASSERT_DEBUG(ndx < size());
if (root_is_leaf()) {
bool is_big = m_array->get_context_flag();
BinaryData ret;
if (!is_big) {
// Small blobs root leaf
ArrayBinary* leaf = static_cast<ArrayBinary*>(m_array.get());
ret = leaf->get(ndx);
}
else {
// Big blobs root leaf
ArrayBigBlobs* leaf = static_cast<ArrayBigBlobs*>(m_array.get());
ret = leaf->get(ndx);
}
if (!m_nullable && ret.is_null())
return BinaryData("", 0); // return empty string (non-null)
return ret;
}
// Non-leaf root
std::pair<MemRef, size_t> p = m_array->get_bptree_leaf(ndx);
const char* leaf_header = p.first.m_addr;
size_t ndx_in_leaf = p.second;
Allocator& alloc = m_array->get_alloc();
bool is_big = Array::get_context_flag_from_header(leaf_header);
if (!is_big) {
// Small blobs
return ArrayBinary::get(leaf_header, ndx_in_leaf, alloc);
}
// Big blobs
return ArrayBigBlobs::get(leaf_header, ndx_in_leaf, alloc);
}
inline void StringEnumColumn::add(StringData value)
{
REALM_ASSERT_DEBUG(!(!m_nullable && value.is_null()));
size_t row_ndx = realm::npos;
size_t num_rows = 1;
do_insert(row_ndx, value, num_rows); // Throws
}
/// If \a data is 'null', \a size must be zero.
OwnedData(const char* data, size_t size) : m_size(size)
{
REALM_ASSERT_DEBUG(data || size == 0);
if (data) {
m_data = std::unique_ptr<char[]>(new char[size]);
memcpy(m_data.get(), data, size);
}
}
// Implementing pure virtual method of ColumnBase.
inline void BinaryColumn::move_last_row_over(size_t row_ndx, size_t prior_num_rows, bool)
{
REALM_ASSERT_DEBUG(prior_num_rows == size());
REALM_ASSERT(row_ndx < prior_num_rows);
size_t last_row_ndx = prior_num_rows - 1;
do_move_last_over(row_ndx, last_row_ndx); // Throws
}
inline void StringEnumColumn::insert(size_t row_ndx, StringData value)
{
REALM_ASSERT_DEBUG(!(!m_nullable && value.is_null()));
size_t column_size = this->size();
REALM_ASSERT_3(row_ndx, <=, column_size);
size_t num_rows = 1;
bool is_append = row_ndx == column_size;
do_insert(row_ndx, value, num_rows, is_append); // Throws
}
// Implementing pure virtual method of ColumnBase.
inline void StringColumn::insert_rows(size_t row_ndx, size_t num_rows_to_insert,
size_t prior_num_rows)
{
REALM_ASSERT_DEBUG(prior_num_rows == size());
REALM_ASSERT(row_ndx <= prior_num_rows);
StringData value = m_nullable ? realm::null() : StringData("");
bool is_append = (row_ndx == prior_num_rows);
do_insert(row_ndx, value, num_rows_to_insert, is_append); // Throws
}
void SyncUserMetadata::set_is_admin(bool is_admin)
{
if (m_invalid) {
return;
}
REALM_ASSERT_DEBUG(m_realm);
m_realm->verify_thread();
m_realm->begin_transaction();
m_row.set_bool(m_schema.idx_user_is_admin, is_admin);
m_realm->commit_transaction();
}
inline int_fast64_t from_ref(ref_type v) noexcept
{
// Check that v is divisible by 8 (64-bit aligned).
REALM_ASSERT_DEBUG(v % 8 == 0);
static_assert(std::is_same<ref_type, size_t>::value,
"If ref_type changes, from_ref and to_ref should probably be updated");
// Make sure that we preserve the bit pattern of the ref_type (without sign extension).
return util::from_twos_compl<int_fast64_t>(uint_fast64_t(v));
}
// Implementing pure virtual method of ColumnBase.
inline void BinaryColumn::erase_rows(size_t row_ndx, size_t num_rows_to_erase, size_t prior_num_rows, bool)
{
REALM_ASSERT_DEBUG(prior_num_rows == size());
REALM_ASSERT(num_rows_to_erase <= prior_num_rows);
REALM_ASSERT(row_ndx <= prior_num_rows - num_rows_to_erase);
bool is_last = (row_ndx + num_rows_to_erase == prior_num_rows);
for (size_t i = num_rows_to_erase; i > 0; --i) {
size_t row_ndx_2 = row_ndx + i - 1;
erase(row_ndx_2, is_last); // Throws
}
}
// Implementing pure virtual method of ColumnBase.
inline void BinaryColumn::insert_rows(size_t row_ndx, size_t num_rows_to_insert,
size_t prior_num_rows, bool insert_nulls)
{
REALM_ASSERT_DEBUG(prior_num_rows == size());
REALM_ASSERT(row_ndx <= prior_num_rows);
REALM_ASSERT(!insert_nulls || m_nullable);
size_t row_ndx_2 = (row_ndx == prior_num_rows ? realm::npos : row_ndx);
BinaryData value = m_nullable ? BinaryData() : BinaryData("", 0);
bool add_zero_term = false;
do_insert(row_ndx_2, value, add_zero_term, num_rows_to_insert); // Throws
}
void SyncUserMetadata::set_state(util::Optional<std::string> server_url, util::Optional<std::string> user_token)
{
if (m_invalid) {
return;
}
REALM_ASSERT_DEBUG(m_realm);
m_realm->verify_thread();
m_realm->begin_transaction();
m_row.set_string(m_schema.idx_user_token, *user_token);
m_row.set_string(m_schema.idx_auth_server_url, *server_url);
m_realm->commit_transaction();
}
inline ref_type to_ref(int_fast64_t v) noexcept
{
// Check that v is divisible by 8 (64-bit aligned).
REALM_ASSERT_DEBUG(v % 8 == 0);
// C++11 standard, paragraph 4.7.2 [conv.integral]:
// If the destination type is unsigned, the resulting value is the least unsigned integer congruent to the source
// integer (modulo 2n where n is the number of bits used to represent the unsigned type). [ Note: In a two's
// complement representation, this conversion is conceptual and there is no change in the bit pattern (if there is
// no truncation). - end note ]
static_assert(std::is_unsigned<ref_type>::value,
"If ref_type changes, from_ref and to_ref should probably be updated");
return ref_type(v);
}
inline ConstTableRef SubqueryExpression::get_dest_table() const
{
REALM_ASSERT_DEBUG(link_chain.size() > 0);
return link_chain.back().table;
}
inline size_t SubqueryExpression::get_dest_ndx() const
{
REALM_ASSERT_DEBUG(link_chain.size() > 0);
return link_chain.back().col_ndx;
}
inline bool SubqueryExpression::dest_type_is_backlink() const
{
REALM_ASSERT_DEBUG(link_chain.size() > 0);
return link_chain.back().is_backlink;
}
inline DataType SubqueryExpression::get_dest_type() const
{
REALM_ASSERT_DEBUG(link_chain.size() > 0);
return link_chain.back().col_type;
}
inline size_t SlabAlloc::get_baseline() const noexcept
{
REALM_ASSERT_DEBUG(is_attached());
return m_baseline;
}
inline bool Allocator::is_read_only(ref_type ref) const noexcept
{
REALM_ASSERT_DEBUG(ref != 0);
REALM_ASSERT_DEBUG(m_baseline != 0); // Attached SlabAlloc
return ref < m_baseline;
}
inline int_fast64_t from_ref(ref_type v) noexcept
{
// Check that v is divisible by 8 (64-bit aligned).
REALM_ASSERT_DEBUG(v % 8 == 0);
return util::from_twos_compl<int_fast64_t>(v);
}
/// If \a data is 'null', \a size must be zero.
OwnedData(std::unique_ptr<char[]> data, size_t size) noexcept :
m_data(std::move(data)), m_size(size)
{
REALM_ASSERT_DEBUG(m_data || m_size == 0);
}
// Safe cast from 64 to 32 bits on 32 bit architecture. Differs from to_ref() by not testing alignment and REF-bitflag.
inline size_t to_size_t(int_fast64_t v) noexcept
{
REALM_ASSERT_DEBUG(!util::int_cast_has_overflow<size_t>(v));
return size_t(v);
}
