Merge pull request #3 from H4vC/main

perf: removed redundant cache invalidations and preindexed lookups for pdbs
This commit is contained in:
IChooseYou
2026-02-23 16:07:27 -07:00
4 changed files with 77 additions and 62 deletions

View File

@@ -105,6 +105,13 @@ static inline uint64_t resolveAddr(const ComposeState& state,
return state.absOffsets[nodeIdx];
}
static const QVector<int>& childIndices(const ComposeState& state, uint64_t parentId) {
static const QVector<int> kEmpty;
auto it = state.childMap.constFind(parentId);
return it == state.childMap.constEnd() ? kEmpty : it.value();
}
void composeLeaf(ComposeState& state, const NodeTree& tree,
const Provider& prov, int nodeIdx,
int depth, uint64_t absAddr, uint64_t scopeId) {
@@ -327,10 +334,7 @@ void composeParent(ComposeState& state, const NodeTree& tree,
return;
}
QVector<int> children = state.childMap.value(node.id);
std::sort(children.begin(), children.end(), [&](int a, int b) {
return tree.nodes[a].offset < tree.nodes[b].offset;
});
const QVector<int>& children = childIndices(state, node.id);
int childDepth = depth + 1;
@@ -399,10 +403,7 @@ void composeParent(ComposeState& state, const NodeTree& tree,
if (node.kind == NodeKind::Struct && children.isEmpty() && node.refId != 0) {
int refIdx = tree.indexOfId(node.refId);
if (refIdx >= 0) {
QVector<int> refChildren = state.childMap.value(node.refId);
std::sort(refChildren.begin(), refChildren.end(), [&](int a, int b) {
return tree.nodes[a].offset < tree.nodes[b].offset;
});
const QVector<int>& refChildren = childIndices(state, node.refId);
// Use the referenced struct's scope widths (children come from there)
uint64_t refScopeId = node.refId;
for (int childIdx : refChildren) {
@@ -493,7 +494,7 @@ void composeNode(ComposeState& state, const NodeTree& tree,
QString ptrTypeOverride = fmt::pointerTypeName(node.kind, ptrTargetName);
// Check if this pointer has materialized children (from materializeRefChildren)
QVector<int> ptrChildren = state.childMap.value(node.id);
const QVector<int>& ptrChildren = childIndices(state, node.id);
bool hasMaterialized = !ptrChildren.isEmpty();
// Force collapsed if this refId is already being virtually expanded
@@ -559,9 +560,6 @@ void composeNode(ComposeState& state, const NodeTree& tree,
// Render materialized children at the pointer target address.
// These are real tree nodes with independent state — use rootId
// so resolveAddr computes offsets relative to the pointer target.
std::sort(ptrChildren.begin(), ptrChildren.end(), [&](int a, int b) {
return tree.nodes[a].offset < tree.nodes[b].offset;
});
for (int childIdx : ptrChildren) {
composeNode(state, tree, childProv, childIdx, depth + 1,
pBase, node.id, false, node.id);
@@ -630,6 +628,13 @@ ComposeResult compose(const NodeTree& tree, const Provider& prov, uint64_t viewR
for (int i = 0; i < tree.nodes.size(); i++)
state.childMap[tree.nodes[i].parentId].append(i);
for (auto it = state.childMap.begin(); it != state.childMap.end(); ++it) {
QVector<int>& children = it.value();
std::sort(children.begin(), children.end(), [&](int a, int b) {
return tree.nodes[a].offset < tree.nodes[b].offset;
});
}
// Precompute absolute offsets (baseAddress + structure-relative offset)
state.absOffsets.resize(tree.nodes.size());
for (int i = 0; i < tree.nodes.size(); i++)
@@ -754,10 +759,7 @@ ComposeResult compose(const NodeTree& tree, const Provider& prov, uint64_t viewR
state.emitLine(cmdRowText, lm);
}
QVector<int> roots = state.childMap.value(0);
std::sort(roots.begin(), roots.end(), [&](int a, int b) {
return tree.nodes[a].offset < tree.nodes[b].offset;
});
const QVector<int>& roots = childIndices(state, 0);
for (int idx : roots) {
// If viewRootId is set, skip roots that don't match

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@@ -232,11 +232,16 @@ struct PdbCtx {
NodeTree tree;
const TypeTable* tt = nullptr;
QHash<uint32_t, uint64_t> typeCache; // typeIndex → nodeId
QHash<QString, uint32_t> structDefByName; // struct/class definition name → typeIndex
QHash<QString, uint32_t> unionDefByName; // union definition name → typeIndex
bool udtDefIndexBuilt = false;
uint64_t importUDT(uint32_t typeIndex);
uint64_t importEnum(uint32_t typeIndex);
void importFieldList(uint32_t fieldListIndex, uint64_t parentId);
void importMemberType(uint32_t typeIndex, int offset, const QString& name, uint64_t parentId);
void buildUdtDefinitionIndex();
uint32_t findUdtDefinitionIndex(TRK kind, const char* typeName);
// Resolve LF_MODIFIER chain to underlying type index
uint32_t unwrapModifier(uint32_t typeIndex) const {
@@ -249,6 +254,56 @@ struct PdbCtx {
}
};
void PdbCtx::buildUdtDefinitionIndex() {
if (udtDefIndexBuilt || !tt) return;
udtDefIndexBuilt = true;
for (uint32_t ti = tt->firstIndex(); ti < tt->lastIndex(); ti++) {
const auto* rec = tt->get(ti);
if (!rec) continue;
bool isUnion = false;
bool isFwd = false;
const char* candidateName = nullptr;
if (rec->header.kind == TRK::LF_UNION) {
isUnion = true;
isFwd = rec->data.LF_UNION.property.fwdref;
candidateName = leafName(rec->data.LF_UNION.data, unionLeafKind(rec->data.LF_UNION.data));
} else if (rec->header.kind == TRK::LF_STRUCTURE || rec->header.kind == TRK::LF_CLASS) {
isFwd = rec->data.LF_CLASS.property.fwdref;
candidateName = leafName(rec->data.LF_CLASS.data, rec->data.LF_CLASS.lfEasy.kind);
} else {
continue;
}
if (isFwd || !candidateName || candidateName[0] == '\0') continue;
QString qname = QString::fromUtf8(candidateName);
QHash<QString, uint32_t>& lookup = isUnion ? unionDefByName : structDefByName;
if (!lookup.contains(qname)) lookup.insert(qname, ti);
}
}
uint32_t PdbCtx::findUdtDefinitionIndex(TRK kind, const char* typeName) {
if (!typeName || typeName[0] == '\0') return 0;
buildUdtDefinitionIndex();
const QString qname = QString::fromUtf8(typeName);
if (kind == TRK::LF_UNION) {
auto it = unionDefByName.constFind(qname);
return (it != unionDefByName.cend()) ? it.value() : 0;
}
if (kind == TRK::LF_STRUCTURE || kind == TRK::LF_CLASS) {
auto it = structDefByName.constFind(qname);
return (it != structDefByName.cend()) ? it.value() : 0;
}
return 0;
}
uint64_t PdbCtx::importUDT(uint32_t typeIndex) {
if (typeIndex < tt->firstIndex()) return 0;
@@ -576,7 +631,6 @@ void PdbCtx::importMemberType(uint32_t typeIndex, int offset, const QString& nam
isFwd = pointeeRec->data.LF_CLASS.property.fwdref;
if (isFwd) {
// Need to find the non-fwdref definition by name
const char* typeName = nullptr;
if (pointeeRec->header.kind == TRK::LF_UNION)
typeName = leafName(pointeeRec->data.LF_UNION.data, unionLeafKind(pointeeRec->data.LF_UNION.data));
@@ -584,28 +638,8 @@ void PdbCtx::importMemberType(uint32_t typeIndex, int offset, const QString& nam
typeName = leafName(pointeeRec->data.LF_CLASS.data,
pointeeRec->data.LF_CLASS.lfEasy.kind);
if (typeName) {
// Linear scan for the definition (cached after first import)
for (uint32_t ti = tt->firstIndex(); ti < tt->lastIndex(); ti++) {
const auto* candidate = tt->get(ti);
if (!candidate) continue;
if (candidate->header.kind != pointeeRec->header.kind) continue;
bool candidateFwd;
const char* candidateName;
if (candidate->header.kind == TRK::LF_UNION) {
candidateFwd = candidate->data.LF_UNION.property.fwdref;
candidateName = leafName(candidate->data.LF_UNION.data, unionLeafKind(candidate->data.LF_UNION.data));
} else {
candidateFwd = candidate->data.LF_CLASS.property.fwdref;
candidateName = leafName(candidate->data.LF_CLASS.data,
candidate->data.LF_CLASS.lfEasy.kind);
}
if (!candidateFwd && candidateName && strcmp(candidateName, typeName) == 0) {
defIndex = ti;
break;
}
}
}
uint32_t resolved = findUdtDefinitionIndex(pointeeRec->header.kind, typeName);
if (resolved != 0) defIndex = resolved;
}
n.refId = importUDT(defIndex);
} else if (pointeeRec->header.kind == TRK::LF_PROCEDURE ||
@@ -638,27 +672,8 @@ void PdbCtx::importMemberType(uint32_t typeIndex, int offset, const QString& nam
else
typeName = leafName(rec->data.LF_CLASS.data, rec->data.LF_CLASS.lfEasy.kind);
if (typeName) {
for (uint32_t ti = tt->firstIndex(); ti < tt->lastIndex(); ti++) {
const auto* candidate = tt->get(ti);
if (!candidate) continue;
if (candidate->header.kind != rec->header.kind) continue;
bool candidateFwd;
const char* candidateName;
if (candidate->header.kind == TRK::LF_UNION) {
candidateFwd = candidate->data.LF_UNION.property.fwdref;
candidateName = leafName(candidate->data.LF_UNION.data, unionLeafKind(candidate->data.LF_UNION.data));
} else {
candidateFwd = candidate->data.LF_CLASS.property.fwdref;
candidateName = leafName(candidate->data.LF_CLASS.data,
candidate->data.LF_CLASS.lfEasy.kind);
}
if (!candidateFwd && candidateName && strcmp(candidateName, typeName) == 0) {
defIndex = ti;
break;
}
}
}
uint32_t resolved = findUdtDefinitionIndex(rec->header.kind, typeName);
if (resolved != 0) defIndex = resolved;
}
uint64_t refId = importUDT(defIndex);

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@@ -371,7 +371,6 @@ NodeTree importReclassXml(const QString& filePath, QString* errorMsg) {
auto it = classIds.find(ref.className);
if (it != classIds.end()) {
tree.nodes[nodeIdx].refId = it.value();
tree.invalidateIdCache();
resolved++;
} else {
qDebug() << "[ImportXML] Unresolved ref:" << ref.className << "for node" << ref.nodeId;

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@@ -1296,7 +1296,6 @@ NodeTree importFromSource(const QString& sourceCode, QString* errorMsg) {
auto it = classIds.find(ref.className);
if (it != classIds.end()) {
tree.nodes[nodeIdx].refId = it.value();
tree.invalidateIdCache();
}
}