From 5b8b9cab57c30be9c8c42ede79cd3eef949a1ea7 Mon Sep 17 00:00:00 2001
From: TheMode <themode@outlook.fr>
Date: Mon, 9 Aug 2021 02:05:51 +0200
Subject: [PATCH] Fix buffer not being emptied

---
 .../minestom/server/utils/binary/BinaryBuffer.java  | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/main/java/net/minestom/server/utils/binary/BinaryBuffer.java b/src/main/java/net/minestom/server/utils/binary/BinaryBuffer.java
index 96715f511..b4c4b5e0e 100644
--- a/src/main/java/net/minestom/server/utils/binary/BinaryBuffer.java
+++ b/src/main/java/net/minestom/server/utils/binary/BinaryBuffer.java
@@ -124,12 +124,15 @@ public final class BinaryBuffer {
     }
 
     public void writeChannel(WritableByteChannel channel) throws IOException {
-        final int count = channel.write(asByteBuffer(readerOffset, writerOffset));
-        if (count == -1) {
-            // EOS
-            throw new IOException("Disconnected");
+        var writeBuffer = asByteBuffer(readerOffset, writerOffset);
+        while (writeBuffer.position() != writeBuffer.limit()) {
+            final int count = channel.write(writeBuffer);
+            if (count == -1) {
+                // EOS
+                throw new IOException("Disconnected");
+            }
+            this.readerOffset += count;
         }
-        this.readerOffset += count;
     }
 
     public void readChannel(ReadableByteChannel channel) throws IOException {