Maxwell-Guo commented on code in PR #2368:
URL: https://github.com/apache/cassandra/pull/2368#discussion_r1209645007
##########
src/java/org/apache/cassandra/io/util/TrackedDataInputPlus.java:
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@@ -129,22 +156,34 @@ public String readUTF() throws IOException
public int readUnsignedByte() throws IOException
{
+ checkCanRead(1);
int i = source.readUnsignedByte();
bytesRead += 1;
return i;
}
public int readUnsignedShort() throws IOException
{
+ checkCanRead(2);
int i = source.readUnsignedShort();
bytesRead += 2;
return i;
}
public int skipBytes(int n) throws IOException
{
- int skipped = source.skipBytes(n);
+ int skipped = source.skipBytes(limit < 0 ? n : (int) Math.min(limit -
bytesRead, n));
bytesRead += skipped;
return skipped;
}
+
+ @Inline
+ private void checkCanRead(int size) throws IOException
+ {
+ if (limit >= 0 && bytesRead + size > limit)
Review Comment:
I just test some times,it seems limit can not be 0 ~~~
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