Error PDBStringTableBuilder::writeStrings(BinaryStreamWriter &Writer) const {
if (auto EC = Strings.commit(Writer))
return EC;
assert(Writer.bytesRemaining() == 0);
return Error::success();
}
Error PDBStringTableBuilder::writeHashTable(BinaryStreamWriter &Writer) const {
// Write a hash table.
uint32_t BucketCount = computeBucketCount(Strings.size());
if (auto EC = Writer.writeInteger(BucketCount))
return EC;
std::vector<ulittle32_t> Buckets(BucketCount);
for (auto &Pair : Strings) {
StringRef S = Pair.getKey();
uint32_t Offset = Pair.getValue();
uint32_t Hash = hashStringV1(S);
for (uint32_t I = 0; I != BucketCount; ++I) {
uint32_t Slot = (Hash + I) % BucketCount;
if (Buckets[Slot] != 0)
continue;
Buckets[Slot] = Offset;
break;
}
}
if (auto EC = Writer.writeArray(ArrayRef<ulittle32_t>(Buckets)))
return EC;
assert(Writer.bytesRemaining() == 0);
return Error::success();
}
Error PDBStringTableBuilder::writeHeader(BinaryStreamWriter &Writer) const {
// Write a header
PDBStringTableHeader H;
H.Signature = PDBStringTableSignature;
H.HashVersion = 1;
H.ByteSize = Strings.calculateSerializedSize();
if (auto EC = Writer.writeObject(H))
return EC;
assert(Writer.bytesRemaining() == 0);
return Error::success();
}
Error PDBStringTableBuilder::writeEpilogue(BinaryStreamWriter &Writer) const {
if (auto EC = Writer.writeInteger<uint32_t>(Strings.size()))
return EC;
assert(Writer.bytesRemaining() == 0);
return Error::success();
}
