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mcrcortex
2025-05-26 13:09:27 +10:00
parent c283f6eac4
commit 3b261d9989
1 changed files with 19 additions and 3 deletions
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22
src/main/java/me/cortex/voxy/common/config/storage/rocksdb/RocksDBStorageBackend.java
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@@ -6,6 +6,7 @@ import me.cortex.voxy.common.config.ConfigBuildCtx;
import me.cortex.voxy.common.config.storage.StorageConfig;
import me.cortex.voxy.common.util.MemoryBuffer;
import me.cortex.voxy.common.util.UnsafeUtil;
import me.cortex.voxy.common.world.WorldEngine;
import org.lwjgl.system.MemoryStack;
import org.lwjgl.system.MemoryUtil;
import org.rocksdb.*;
@@ -49,10 +50,14 @@ public class RocksDBStorageBackend extends StorageBackend {
}
}
*/
RocksDB.loadLibrary();
//TODO: FIXME: DONT USE THE SAME options PER COLUMN FAMILY
final ColumnFamilyOptions cfOpts = new ColumnFamilyOptions()
.setCompressionType(CompressionType.NO_COMPRESSION)
.optimizeForPointLookup(128);
final List<ColumnFamilyDescriptor> cfDescriptors = Arrays.asList(
new ColumnFamilyDescriptor(RocksDB.DEFAULT_COLUMN_FAMILY, cfOpts),
new ColumnFamilyDescriptor("world_sections".getBytes(), cfOpts),
@@ -116,7 +121,7 @@ public class RocksDBStorageBackend extends StorageBackend {
//HATE JAVA HATE JAVA HATE JAVA, Long.reverseBytes()
//THIS WILL ONLY WORK ON LITTLE ENDIAN SYSTEM AAAAAAAAA ;-;
MemoryUtil.memPutLong(MemoryUtil.memAddress(buffer), Long.reverseBytes(key));
MemoryUtil.memPutLong(MemoryUtil.memAddress(buffer), Long.reverseBytes(swizzlePos(key)));
var result = this.db.get(this.worldSections,
this.sectionReadOps,
@@ -138,7 +143,7 @@ public class RocksDBStorageBackend extends StorageBackend {
public void setSectionData(long key, MemoryBuffer data) {
try (var stack = MemoryStack.stackPush()) {
var keyBuff = stack.calloc(8);
MemoryUtil.memPutLong(MemoryUtil.memAddress(keyBuff), Long.reverseBytes(key));
MemoryUtil.memPutLong(MemoryUtil.memAddress(keyBuff), Long.reverseBytes(swizzlePos(key)));
this.db.put(this.worldSections, this.sectionWriteOps, keyBuff, data.asByteBuffer());
} catch (RocksDBException e) {
throw new RuntimeException(e);
@@ -148,7 +153,7 @@ public class RocksDBStorageBackend extends StorageBackend {
@Override
public void deleteSectionData(long key) {
try {
this.db.delete(this.worldSections, longToBytes(key));
this.db.delete(this.worldSections, longToBytes(swizzlePos(key)));
} catch (RocksDBException e) {
throw new RuntimeException(e);
}
@@ -226,4 +231,15 @@ public class RocksDBStorageBackend extends StorageBackend {
return "RocksDB";
}
}
private static long swizzlePos(long key) {
if (true) {
return key;
}
if (WorldEngine.POS_FORMAT_VERSION != 1) throw new IllegalStateException("TODO: UPDATE THIS");
return (key&(0xFL<<60)) |
Long.expand((key>>> 4)&((1L<<24)-1), 0b01010101010101010101010101010101_001001001001001001001001L) |
Long.expand((key>>>52)&0xFF, 0b00000000000000000000000000000000_100100100100100100100100L) |
Long.expand((key>>>28)&((1L<<24)-1), 0b10101010101010101010101010101010_010010010010010010010010L);
}
}