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Simplify PacketUtils

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Signed-off-by: TheMode <themode@outlook.fr>
This commit is contained in:
TheMode 2021-09-05 02:50:59 +02:00
parent 7b8277b6be
commit 026550ac07
1 changed files with 10 additions and 28 deletions
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38
src/main/java/net/minestom/server/utils/PacketUtils.java
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@ -22,7 +22,6 @@ import org.jetbrains.annotations.ApiStatus;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.nio.BufferOverflowException;
import java.nio.ByteBuffer;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
@ -194,12 +193,11 @@ public final class PacketUtils {
final int packetSize = buffer.position() - contentStart;
if (packetSize >= MinecraftServer.getCompressionThreshold()) {
// Packet large enough, compress
final int limitCache = buffer.limit();
buffer.position(contentStart).limit(contentStart + packetSize);
var uncompressedCopy = COMPRESSION_CACHE.get().put(buffer).flip();
buffer.position(contentStart).limit(limitCache);
buffer.position(contentStart);
final ByteBuffer uncompressedContent = buffer.slice().limit(contentStart + packetSize);
final ByteBuffer uncompressedCopy = localBuffer().put(uncompressedContent).flip();
var deflater = COMPRESSOR.get();
Deflater deflater = COMPRESSOR.get();
deflater.setInput(uncompressedCopy);
deflater.finish();
deflater.deflate(buffer);
@ -213,36 +211,20 @@ public final class PacketUtils {
}
}
public static ByteBuffer createFramedPacket(@NotNull ByteBuffer initial, @NotNull ServerPacket packet,
boolean compression) {
var buffer = initial;
try {
writeFramedPacket(buffer, packet, compression);
} catch (BufferOverflowException e) {
// In the unlikely case where the packet is bigger than the default buffer size,
// increase to the highest authorized buffer size using heap (for cheap allocation)
buffer = ByteBuffer.allocate(Server.MAX_PACKET_SIZE);
writeFramedPacket(buffer, packet, compression);
}
public static ByteBuffer createFramedPacket(@NotNull ServerPacket packet, boolean compression) {
ByteBuffer buffer = PACKET_BUFFER.get();
writeFramedPacket(buffer, packet, compression);
return buffer;
}
public static ByteBuffer createFramedPacket(@NotNull ByteBuffer initial, @NotNull ServerPacket packet) {
return createFramedPacket(initial, packet, MinecraftServer.getCompressionThreshold() > 0);
}
public static ByteBuffer createFramedPacket(@NotNull ServerPacket packet) {
return createFramedPacket(PACKET_BUFFER.get(), packet);
}
public static ByteBuffer createFramedPacket(@NotNull ServerPacket packet, boolean compression) {
return createFramedPacket(PACKET_BUFFER.get(), packet, compression);
return createFramedPacket(packet, MinecraftServer.getCompressionThreshold() > 0);
}
@ApiStatus.Internal
public static FramedPacket allocateTrimmedPacket(@NotNull ServerPacket packet) {
final var temp = PacketUtils.createFramedPacket(packet);
final var buffer = ByteBuffer.allocateDirect(temp.position()).put(temp.flip()).asReadOnlyBuffer();
final ByteBuffer temp = PacketUtils.createFramedPacket(packet).flip();
final ByteBuffer buffer = ByteBuffer.allocateDirect(temp.remaining()).put(temp).asReadOnlyBuffer();
return new FramedPacket(packet.getId(), buffer, packet);
}