inline std::size_t LinkView::size() const noexcept
{
REALM_ASSERT(is_attached());
if (!m_row_indexes.is_attached())
return 0;
return m_row_indexes.size();
}
inline bool InterprocessMutex::is_valid() noexcept
{
#ifdef REALM_ROBUST_MUTEX_EMULATION
return true;
#else
REALM_ASSERT(m_shared_part);
return m_shared_part->is_valid();
#endif
}
inline void StringColumn::insert(std::size_t row_ndx, StringData value)
{
REALM_ASSERT(!(value.is_null() && !m_nullable));
std::size_t size = this->size();
REALM_ASSERT_3(row_ndx, <=, size);
std::size_t num_rows = 1;
bool is_append = row_ndx == size;
do_insert(row_ndx, value, num_rows, is_append); // Throws
}
inline bool LinkView::is_empty() const noexcept
{
REALM_ASSERT(is_attached());
if (!m_row_indexes.is_attached())
return true;
return m_row_indexes.is_empty();
}
void SyncFileActionMetadata::remove()
{
REALM_ASSERT(m_realm);
m_realm->verify_thread();
m_realm->begin_transaction();
TableRef table = ObjectStore::table_for_object_type(m_realm->read_group(), c_sync_fileActionMetadata);
table->move_last_over(m_row.get_index());
m_realm->commit_transaction();
m_realm = nullptr;
}
inline void InterprocessMutex::unlock()
{
#ifdef REALM_ROBUST_MUTEX_EMULATION
m_lock_info->m_file.unlock();
m_lock_info->m_local_mutex.unlock();
#else
REALM_ASSERT(m_shared_part);
m_shared_part->unlock();
#endif
}
void set_null(size_t index) override
{
REALM_ASSERT(m_nullable);
if (!m_array->is_inner_bptree_node()) {
static_cast<BasicArray<T>*>(m_array.get())->set(index, null::get_null_float<T>()); // Throws
return;
}
SetLeafElem set_leaf_elem(m_array->get_alloc(), null::get_null_float<T>());
m_array->update_bptree_elem(index, set_leaf_elem); // 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
}
// Old database files will not have the m_nulls array, so we need code paths for
// backwards compatibility for these cases. We can test if m_nulls exists by looking
// at number of references in this ArrayBinary.
inline bool ArrayBinary::legacy_array_type() const noexcept
{
if (Array::size() == 3)
return false; // New database file
else if (Array::size() == 2)
return true; // Old database file
else
REALM_ASSERT(false); // Should never happen
return false;
}
inline void InterprocessMutex::lock()
{
#ifdef REALM_ROBUST_MUTEX_EMULATION
std::unique_lock<Mutex> mutex_lock(m_lock_info->m_local_mutex);
m_lock_info->m_file.lock_exclusive();
mutex_lock.release();
#else
REALM_ASSERT(m_shared_part);
m_shared_part->lock([]() {});
#endif
}
inline void Spec::set_column_attr(size_t column_ndx, ColumnAttr attr)
{
REALM_ASSERT(column_ndx < get_column_count());
// At this point we only allow one attr at a time
// so setting it will overwrite existing. In the future
// we will allow combinations.
m_attr.set(column_ndx, attr);
update_has_strong_link_columns();
}
inline std::size_t LinkView::find(std::size_t target_row_ndx, std::size_t start) const noexcept
{
REALM_ASSERT(is_attached());
REALM_ASSERT_3(target_row_ndx, <, m_origin_column.get_target_table().size());
REALM_ASSERT_3(start, <=, size());
if (!m_row_indexes.is_attached())
return not_found;
return m_row_indexes.find_first(target_row_ndx, start);
}
inline void BinaryColumn::update_from_parent(size_t old_baseline) noexcept
{
if (root_is_leaf()) {
bool is_big = m_array->get_context_flag();
if (!is_big) {
// Small blobs root leaf
REALM_ASSERT(dynamic_cast<ArrayBinary*>(m_array.get()));
ArrayBinary* leaf = static_cast<ArrayBinary*>(m_array.get());
leaf->update_from_parent(old_baseline);
return;
}
// Big blobs root leaf
REALM_ASSERT(dynamic_cast<ArrayBigBlobs*>(m_array.get()));
ArrayBigBlobs* leaf = static_cast<ArrayBigBlobs*>(m_array.get());
leaf->update_from_parent(old_baseline);
return;
}
// Non-leaf root
m_array->update_from_parent(old_baseline);
}
Utf16StringAccessor(const uint16_t* csbuffer, size_t csbufsize)
{
// For efficiency, if the incoming UTF-16 string is sufficiently
// small, we will choose an UTF-8 output buffer whose size (in
// bytes) is simply 4 times the number of 16-bit elements in the
// input. This is guaranteed to be enough. However, to avoid
// excessive over allocation, this is not done for larger input
// strings.
error = false;
typedef realm::util::Utf8x16<uint16_t, std::char_traits<char16_t>>Xcode; //This might not work in old compilers (the std::char_traits<char16_t> ).
size_t max_project_size = 48;
REALM_ASSERT(max_project_size <= std::numeric_limits<size_t>::max() / 4);
size_t u8buf_size;
if (csbufsize <= max_project_size) {
u8buf_size = csbufsize * 4;
}
else {
const uint16_t* begin = csbuffer;
const uint16_t* end = csbuffer + csbufsize;
u8buf_size = Xcode::find_utf8_buf_size(begin, end);
}
m_data.reset(new char[u8buf_size]);
{
const uint16_t* in_begin = csbuffer;
const uint16_t* in_end = csbuffer + csbufsize;
char* out_begin = m_data.get();
char* out_end = m_data.get() + u8buf_size;
if (!Xcode::to_utf8(in_begin, in_end, out_begin, out_end)) {
m_size = 0;
error = true;
return;//calling method should handle this. We can't throw exceptions
}
REALM_ASSERT(in_begin == in_end);
m_size = out_begin - m_data.get();
}
}
inline size_t Utf8x16<Char16, Traits16>::find_utf8_buf_size(const Char16*& in_begin,
const Char16* const in_end)
{
size_t num_out = 0;
const Char16* in = in_begin;
while (in != in_end) {
REALM_ASSERT(&in[0] >= in_begin && &in[0] < in_end);
uint_fast16_t v = uint_fast16_t(Traits16::to_int_type(in[0]));
if (REALM_LIKELY(v < 0x80)) {
if (REALM_UNLIKELY(int_add_with_overflow_detect(num_out, 1)))
break; // Avoid overflow
in += 1;
}
else if (REALM_LIKELY(v < 0x800)) {
if (REALM_UNLIKELY(int_add_with_overflow_detect(num_out, 2)))
break; // Avoid overflow
in += 1;
}
else if (REALM_LIKELY(v < 0xD800 || 0xE000 <= v)) {
if (REALM_UNLIKELY(int_add_with_overflow_detect(num_out, 3)))
break; // Avoid overflow
in += 1;
}
else {
if (REALM_UNLIKELY(in + 1 == in_end)) {
break; // Incomplete surrogate pair
}
if (REALM_UNLIKELY(int_add_with_overflow_detect(num_out, 4)))
break; // Avoid overflow
in += 2;
}
}
REALM_ASSERT(in >= in_begin && in <= in_end);
in_begin = in;
return num_out;
}
void init(RowIndexes* row_indexes)
{
m_columns.clear();
m_string_enum_columns.clear();
m_columns.resize(m_column_indexes.size(), 0);
m_string_enum_columns.resize(m_column_indexes.size(), 0);
for (size_t i = 0; i < m_column_indexes.size(); i++) {
const ColumnBase& cb = row_indexes->get_column_base(m_column_indexes[i]);
const ColumnTemplateBase* ctb = dynamic_cast<const ColumnTemplateBase*>(&cb);
REALM_ASSERT(ctb);
if (const StringEnumColumn* cse = dynamic_cast<const StringEnumColumn*>(&cb))
m_string_enum_columns[i] = cse;
else
m_columns[i] = ctb;
}
}
MemRef BasicArray<T>::slice(size_t offset, size_t size, Allocator& target_alloc) const
{
REALM_ASSERT(is_attached());
// FIXME: This can be optimized as a single contiguous copy
// operation.
BasicArray slice(target_alloc);
_impl::ShallowArrayDestroyGuard dg(&slice);
slice.create(); // Throws
size_t begin = offset;
size_t end = offset + size;
for (size_t i = begin; i != end; ++i) {
T value = get(i);
slice.add(value); // Throws
}
dg.release();
return slice.get_mem();
}
ValueType Object::get_property_value_impl(ContextType& ctx, const Property &property)
{
verify_attached();
size_t column = property.table_column;
if (is_nullable(property.type) && m_row.is_null(column)) {
return ctx.null_value();
}
if (is_array(property.type) && property.type != PropertyType::LinkingObjects) {
REALM_ASSERT(property.type == PropertyType::Object);
return ctx.box(List(m_realm, m_row.get_linklist(column)));
}
switch (property.type & ~PropertyType::Flags) {
case PropertyType::Bool: return ctx.box(m_row.get_bool(column));
case PropertyType::Int: return ctx.box(m_row.get_int(column));
case PropertyType::Float: return ctx.box(m_row.get_float(column));
case PropertyType::Double: return ctx.box(m_row.get_double(column));
case PropertyType::String: return ctx.box(m_row.get_string(column));
case PropertyType::Data: return ctx.box(m_row.get_binary(column));
case PropertyType::Date: return ctx.box(m_row.get_timestamp(column));
case PropertyType::Any: return ctx.box(m_row.get_mixed(column));
case PropertyType::Object: {
auto linkObjectSchema = m_realm->schema().find(property.object_type);
TableRef table = ObjectStore::table_for_object_type(m_realm->read_group(), property.object_type);
return ctx.box(Object(m_realm, *linkObjectSchema, table->get(m_row.get_link(column))));
}
case PropertyType::LinkingObjects: {
auto target_object_schema = m_realm->schema().find(property.object_type);
auto link_property = target_object_schema->property_for_name(property.link_origin_property_name);
TableRef table = ObjectStore::table_for_object_type(m_realm->read_group(), target_object_schema->name);
auto tv = m_row.get_table()->get_backlink_view(m_row.get_index(), table.get(), link_property->table_column);
return ctx.box(Results(m_realm, std::move(tv)));
}
default: REALM_UNREACHABLE();
}
}
inline bool Descriptor::operator==(const Descriptor& d) const noexcept
{
REALM_ASSERT(is_attached());
REALM_ASSERT(d.is_attached());
return *m_spec == *d.m_spec;
}
inline ConstTableRef Descriptor::get_link_target(size_t col_ndx) const noexcept
{
REALM_ASSERT(is_attached());
REALM_ASSERT(is_root());
return get_root_table()->get_link_target(col_ndx);
}
inline size_t Descriptor::get_column_link_target(size_t column_ndx) const noexcept
{
REALM_ASSERT(is_attached());
return m_spec->get_opposite_link_table_ndx(column_ndx);
}
inline size_t Descriptor::get_column_index(StringData name) const noexcept
{
REALM_ASSERT(is_attached());
return m_spec->get_column_index(name);
}
inline bool Descriptor::is_nullable(size_t ndx) const noexcept
{
REALM_ASSERT(is_attached());
return m_spec->get_column_attr(ndx) & col_attr_Nullable;
}
inline DataType Descriptor::get_column_type(size_t ndx) const noexcept
{
REALM_ASSERT(is_attached());
return m_spec->get_public_column_type(ndx);
}
inline StringData Descriptor::get_column_name(size_t ndx) const noexcept
{
REALM_ASSERT(is_attached());
return m_spec->get_column_name(ndx);
}
inline size_t Descriptor::get_column_count() const noexcept
{
REALM_ASSERT(is_attached());
return m_spec->get_public_column_count();
}
template <class T> T& get_as()
{
REALM_ASSERT(type == GetInstructionType<T>::value);
return *reinterpret_cast<T*>(&m_storage);
}
inline bool Utf8x16<Char16, Traits16>::to_utf16(const char*& in_begin, const char* const in_end, Char16*& out_begin,
Char16* const out_end)
{
typedef std::char_traits<char> traits8;
bool invalid = false;
const char* in = in_begin;
Char16* out = out_begin;
while (in != in_end) {
if (REALM_UNLIKELY(out == out_end)) {
break; // Need space in output buffer
}
REALM_ASSERT(&in[0] >= in_begin && &in[0] < in_end);
uint_fast16_t v1 = uint_fast16_t(traits8::to_int_type(in[0]));
if (REALM_LIKELY(v1 < 0x80)) { // One byte
// UTF-8 layout: 0xxxxxxx
*out++ = Traits16::to_char_type(v1);
in += 1;
continue;
}
if (REALM_UNLIKELY(v1 < 0xC0)) {
invalid = true;
break; // Invalid first byte of UTF-8 sequence
}
if (REALM_LIKELY(v1 < 0xE0)) { // Two bytes
if (REALM_UNLIKELY(in_end - in < 2)) {
invalid = true;
break; // Incomplete UTF-8 sequence
}
REALM_ASSERT(&in[1] >= in_begin && &in[1] < in_end);
uint_fast16_t v2 = uint_fast16_t(traits8::to_int_type(in[1]));
// UTF-8 layout: 110xxxxx 10xxxxxx
if (REALM_UNLIKELY((v2 & 0xC0) != 0x80)) {
invalid = true;
break; // Invalid continuation byte
}
uint_fast16_t v = uint_fast16_t(((v1 & 0x1F) << 6) | ((v2 & 0x3F) << 0));
if (REALM_UNLIKELY(v < 0x80)) {
invalid = true;
break; // Overlong encoding is invalid
}
*out++ = Traits16::to_char_type(v);
in += 2;
continue;
}
if (REALM_LIKELY(v1 < 0xF0)) { // Three bytes
if (REALM_UNLIKELY(in_end - in < 3)) {
invalid = true;
break; // Incomplete UTF-8 sequence
}
REALM_ASSERT(&in[1] >= in_begin && &in[2] < in_end);
uint_fast16_t v2 = uint_fast16_t(traits8::to_int_type(in[1]));
uint_fast16_t v3 = uint_fast16_t(traits8::to_int_type(in[2]));
// UTF-8 layout: 1110xxxx 10xxxxxx 10xxxxxx
if (REALM_UNLIKELY((v2 & 0xC0) != 0x80 || (v3 & 0xC0) != 0x80)) {
invalid = true;
break; // Invalid continuation byte
}
uint_fast16_t v = uint_fast16_t(((v1 & 0x0F) << 12) | ((v2 & 0x3F) << 6) | ((v3 & 0x3F) << 0));
if (REALM_UNLIKELY(v < 0x800)) {
invalid = true;
break; // Overlong encoding is invalid
}
if (REALM_UNLIKELY(0xD800 <= v && v < 0xE000)) {
invalid = true;
break; // Illegal code point range (reserved for UTF-16 surrogate pairs)
}
*out++ = Traits16::to_char_type(v);
in += 3;
continue;
}
if (REALM_UNLIKELY(out + 1 == out_end)) {
break; // Need space in output buffer for surrogate pair
}
if (REALM_LIKELY(v1 < 0xF8)) { // Four bytes
if (REALM_UNLIKELY(in_end - in < 4)) {
invalid = true;
break; // Incomplete UTF-8 sequence
}
uint_fast32_t w1 = uint_fast32_t(v1); // 16 bit -> 32 bit
REALM_ASSERT(&in[1] >= in_begin && &in[3] < in_end);
uint_fast32_t v2 = uint_fast32_t(traits8::to_int_type(in[1])); // 32 bit intended
uint_fast16_t v3 = uint_fast16_t(traits8::to_int_type(in[2])); // 16 bit intended
uint_fast16_t v4 = uint_fast16_t(traits8::to_int_type(in[3])); // 16 bit intended
// UTF-8 layout: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
if (REALM_UNLIKELY((v2 & 0xC0) != 0x80 || (v3 & 0xC0) != 0x80 || (v4 & 0xC0) != 0x80)) {
invalid = true;
break; // Invalid continuation byte
}
uint_fast32_t v = uint_fast32_t(((w1 & 0x07) << 18) | // Parenthesis is 32 bit partial result
((v2 & 0x3F) << 12) | // Parenthesis is 32 bit partial result
((v3 & 0x3F) << 6) | // Parenthesis is 16 bit partial result
((v4 & 0x3F) << 0)); // Parenthesis is 16 bit partial result
if (REALM_UNLIKELY(v < 0x10000)) {
invalid = true;
break; // Overlong encoding is invalid
}
if (REALM_UNLIKELY(0x110000 <= v)) {
invalid = true;
break; // Code point too big for UTF-16
}
v -= 0x10000l;
*out++ = Traits16::to_char_type(0xD800 + (v / 0x400));
*out++ = Traits16::to_char_type(0xDC00 + (v % 0x400));
in += 4;
continue;
}
// Invalid first byte of UTF-8 sequence, or code point too big for UTF-16
invalid = true;
break;
}
REALM_ASSERT(in >= in_begin && in <= in_end);
REALM_ASSERT(out >= out_begin && out <= out_end);
in_begin = in;
out_begin = out;
return !invalid;
}
inline bool Utf8x16<Char16, Traits16>::to_utf8(const Char16*& in_begin, const Char16* const in_end, char*& out_begin,
char* const out_end)
{
typedef std::char_traits<char> traits8;
typedef typename traits8::int_type traits8_int_type;
bool invalid = false;
const Char16* in = in_begin;
char* out = out_begin;
while (in != in_end) {
REALM_ASSERT(&in[0] >= in_begin && &in[0] < in_end);
uint_fast16_t v1 = uint_fast16_t(Traits16::to_int_type(in[0]));
if (REALM_LIKELY(v1 < 0x80)) {
if (REALM_UNLIKELY(out == out_end)) {
break; // Not enough output buffer space
}
// UTF-8 layout: 0xxxxxxx
REALM_ASSERT(out >= out_begin && out < out_end);
*out++ = traits8::to_char_type(traits8_int_type(v1));
in += 1;
continue;
}
if (REALM_LIKELY(v1 < 0x800)) {
if (REALM_UNLIKELY(out_end - out < 2)) {
break; // Not enough output buffer space
}
// UTF-8 layout: 110xxxxx 10xxxxxx
*out++ = traits8::to_char_type(traits8_int_type(0xC0 + v1 / 0x40));
REALM_ASSERT(out >= out_begin && out < out_end);
*out++ = traits8::to_char_type(traits8_int_type(0x80 + v1 % 0x40));
in += 1;
continue;
}
if (REALM_LIKELY(v1 < 0xD800 || 0xE000 <= v1)) {
if (REALM_UNLIKELY(out_end - out < 3)) {
break; // Not enough output buffer space
}
// UTF-8 layout: 1110xxxx 10xxxxxx 10xxxxxx
REALM_ASSERT(out >= out_begin && out + 2 < out_end);
*out++ = traits8::to_char_type(traits8_int_type(0xE0 + v1 / 0x1000));
*out++ = traits8::to_char_type(traits8_int_type(0x80 + v1 / 0x40 % 0x40));
*out++ = traits8::to_char_type(traits8_int_type(0x80 + v1 % 0x40));
in += 1;
continue;
}
// Surrogate pair
if (REALM_UNLIKELY(out_end - out < 4)) {
break; // Not enough output buffer space
}
if (REALM_UNLIKELY(0xDC00 <= v1)) {
invalid = true;
break; // Invalid first half of surrogate pair
}
if (REALM_UNLIKELY(in + 1 == in_end)) {
invalid = true;
break; // Incomplete surrogate pair
}
REALM_ASSERT(&in[1] >= in_begin && &in[1] < in_end);
uint_fast16_t v2 = uint_fast16_t(Traits16::to_int_type(in[1]));
if (REALM_UNLIKELY(v2 < 0xDC00 || 0xE000 <= v2)) {
invalid = true;
break; // Invalid second half of surrogate pair
}
uint_fast32_t v = 0x10000l + (uint_fast32_t(v1 - 0xD800) * 0x400 + (v2 - 0xDC00));
// UTF-8 layout: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
REALM_ASSERT(out >= out_begin && out + 3 < out_end);
*out++ = traits8::to_char_type(traits8_int_type(0xF0 + v / 0x40000));
*out++ = traits8::to_char_type(traits8_int_type(0x80 + v / 0x1000 % 0x40));
*out++ = traits8::to_char_type(traits8_int_type(0x80 + v / 0x40 % 0x40));
*out++ = traits8::to_char_type(traits8_int_type(0x80 + v % 0x40));
in += 2;
}
REALM_ASSERT(in >= in_begin && in <= in_end);
REALM_ASSERT(out >= out_begin && out <= out_end);
in_begin = in;
out_begin = out;
return !invalid;
}
template <class A, class B, class C, class D> bool operator()(A, B, C, D) const { REALM_ASSERT(false); return false; }
