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App: renable StringHasher IndexedName optimization

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The benifit of StringHasher optimization for IndexedName is most evident
on boolean operation of primitive/dumb shape array, e.g. those imported
from STEP, because those shape elements are not encoded, henced mapped
in as plain IndexedName. The optimization split the integer from the
IndexedName to only store the type name to reduce redundancy.
This commit is contained in:
Zheng, Lei
2023-04-25 22:19:16 +08:00
committed by Chris Hennes
parent fdeb69800a
commit ff97747bb7
1 changed files with 11 additions and 14 deletions
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25
src/App/StringHasher.cpp
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@@ -304,9 +304,9 @@ StringIDRef StringHasher::getID(const Data::MappedName& name, const QVector<Stri
tempID._postfix = name.postfixBytes();
Data::IndexedName indexed;
if (tempID._postfix.size() == 0) {
// Restrict this optimization to only cases with no postfix because it is causing some
// problems during recomputes. TODO: This needs to be investigated further
if (tempID._postfix.size() != 0) {
// Only check for IndexedName if there is postfix, because of the way
// we restore the StringID. See StringHasher::saveStream/restoreStreamNew()
indexed = Data::IndexedName(name.dataBytes());
}
if (indexed) {
@@ -404,6 +404,10 @@ StringIDRef StringHasher::getID(const Data::MappedName& name, const QVector<Stri
// Use the fromString function to parse the new StringID's data field for a possible index
StringID::IndexID res = StringID::fromString(newStringID._data);
if (res.id > 0) {// If the data had an index
if (res.index != 0) {
indexed.setIndex(res.index);
newStringID._data.resize(newStringID._data.lastIndexOf(':')+1);
}
int offset = newStringID.isPostfixEncoded() ? 1 : 0;
// Search for the SID with that index
for (int i = offset; i < newStringID._sids.size(); ++i) {
@@ -579,10 +583,7 @@ void StringHasher::saveStream(std::ostream& stream) const
// guarantees to be a single line without space. So it is safe to
// store in raw stream.
if (d.isPostfixed()) {
if (d.isPrefixIDIndex()) {
stream << ' ' << prefixID.index;
}
else if (!d.isIndexed() && !d.isPrefixID()) {
if (!d.isPrefixIDIndex() && !d.isIndexed() && !d.isPrefixID()) {
stream << ' ' << d._data.constData();
}
@@ -714,13 +715,9 @@ void StringHasher::restoreStreamNew(std::istream& stream, std::size_t count)
if (d._sids.size() <= offset) {
FC_THROWM(Base::RuntimeError, "Missing string prefix id");
}
int index = 0;
if (d.isPrefixIDIndex()) {
if (!(stream >> index)) {
FC_THROWM(Base::RuntimeError, "Missing string prefix index");
}
}
d._data = d._sids[offset]._sid->toString(index).c_str();
d._data = d._sids[offset]._sid->toString(0).c_str();
if (d.isPrefixIDIndex())
d._data += ":";
}
else {
stream >> content;