geforkt von Mirrors/Velocity
Ursprung
3db2fe8d63
Commit
e531cdb373
@ -62,17 +62,6 @@ public enum ProtocolUtils {
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private static final int DEFAULT_MAX_STRING_SIZE = 65536; // 64KiB
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private static final int DEFAULT_MAX_STRING_SIZE = 65536; // 64KiB
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private static final QuietDecoderException BAD_VARINT_CACHED =
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private static final QuietDecoderException BAD_VARINT_CACHED =
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new QuietDecoderException("Bad varint decoded");
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new QuietDecoderException("Bad varint decoded");
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private static final int[] VAR_INT_LENGTHS = new int[33];
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static {
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// Inspired by https://richardstartin.github.io/posts/dont-use-protobuf-for-telemetry
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//
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// This has been slightly modified in that we reduce the length to 32-bit only, since Velocity
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// doesn't look at any part of the Minecraft protocol that requires us to look at VarLongs.
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for (int i = 0; i <= 32; ++i) {
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VAR_INT_LENGTHS[i] = (31 - i) / 7;
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}
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}
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/**
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/**
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* Reads a Minecraft-style VarInt from the specified {@code buf}.
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* Reads a Minecraft-style VarInt from the specified {@code buf}.
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@ -108,22 +97,21 @@ public enum ProtocolUtils {
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return Integer.MIN_VALUE;
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return Integer.MIN_VALUE;
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}
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}
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public static int varintBytes(int value) {
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return VAR_INT_LENGTHS[Integer.numberOfLeadingZeros(value)];
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}
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/**
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/**
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* Writes a Minecraft-style VarInt to the specified {@code buf}.
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* Writes a Minecraft-style VarInt to the specified {@code buf}.
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* @param buf the buffer to read from
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* @param buf the buffer to read from
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* @param value the integer to write
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* @param value the integer to write
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*/
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*/
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public static void writeVarInt(ByteBuf buf, int value) {
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public static void writeVarInt(ByteBuf buf, int value) {
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int length = varintBytes(value);
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while (true) {
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for (int i = 0; i < length; ++i) {
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if ((value & 0xFFFFFF80) == 0) {
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buf.writeByte(((byte) ((value & 0x7F) | 0x80)));
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buf.writeByte(value);
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return;
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}
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buf.writeByte(value & 0x7F | 0x80);
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value >>>= 7;
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value >>>= 7;
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}
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}
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buf.writeByte((byte) value);
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}
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}
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public static String readString(ByteBuf buf) {
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public static String readString(ByteBuf buf) {
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