void DirectorySearchRules::AddSearchDirectory(StringSection<ResChar> dir)
{
// Attempt to fit this directory into our buffer.
// note that we have limited space in the buffer, but we can't really
// rely on all directory names remaining small and convenient... If we
// overflow our fixed size buffer, we can use the dynamically
// allocated "_bufferOverflow"
assert((_startPointCount+1) <= dimof(_startOffsets));
if ((_startPointCount+1) > dimof(_startOffsets)) {
// limited number of directories that can be pushed into a single "search rules"
// this allows us to avoid a little bit of awkward dynamic memory allocation
return;
}
// Check for duplicates
// Duplicates are bad because they will increase the number of search operations
if (HasDirectory(dir)) return;
unsigned allocationLength = (unsigned)(dir.Length() + 1);
if (_bufferOverflow.empty() && (_bufferUsed + allocationLength <= dimof(_buffer))) {
// just append this new string to our buffer, and add a new start offset
XlCopyMemory(&_buffer[_bufferUsed], dir.begin(), (allocationLength-1) * sizeof(ResChar));
_buffer[_bufferUsed+allocationLength-1] = '\0';
} else {
if (_bufferOverflow.empty()) {
_bufferOverflow.resize(_bufferUsed + allocationLength);
XlCopyMemory(AsPointer(_bufferOverflow.begin()), _buffer, _bufferUsed * sizeof(ResChar));
XlCopyMemory(PtrAdd(AsPointer(_bufferOverflow.begin()), _bufferUsed * sizeof(ResChar)), dir.begin(), (allocationLength-1) * sizeof(ResChar));
_bufferOverflow[_bufferUsed+allocationLength-1] = '\0';
} else {
assert(_bufferOverflow.size() == allocationLength);
auto i = _bufferOverflow.insert(_bufferOverflow.end(), dir.begin(), dir.end());
_bufferOverflow.insert(i + dir.Length(), 0);
}
}
_startOffsets[_startPointCount++] = _bufferUsed;
_bufferUsed += allocationLength;
}
void PushString(
std::basic_streambuf<OutChar>& stream,
StringSection<InChar> input)
{
stream.sputn((const OutChar*)input.begin(), input.Length());
}
void FileOutputStream::Write(StringSection<ucs4> s)
{
_file.Write(s.begin(), sizeof(*s.begin()), s.Length());
}