zhijiangW commented on a change in pull request #11351: [FLINK-16404][runtime]
Avoid caching buffers for blocked input channels before barrier alignment
URL: https://github.com/apache/flink/pull/11351#discussion_r406645738
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/buffer/Buffer.java
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@@ -227,4 +224,58 @@
* Tags the buffer as compressed or uncompressed.
*/
void setCompressed(boolean isCompressed);
+
+ /**
+ * Gets the type of data this buffer represents.
+ */
+ DataType getDataType();
+
+ /**
+ * Sets the type of data this buffer represents.
+ */
+ void setDataType(DataType dataType);
+
+ /**
+ * Used to identify the type of data contained in {@link Buffer}.
+ */
+ enum DataType {
+ /**
+ * DATA_BUFFER indicates that this buffer represents a
non-event data buffer.
+ */
+ DATA_BUFFER(true),
+
+ /**
+ * EXACTLY_ONCE_CHECKPOINT_BARRIER indicates that this buffer
represents a
+ * serialized checkpoint barrier of exactly once checkpoint
mode.
+ */
+ EXACTLY_ONCE_CHECKPOINT_BARRIER(false),
+
+ /**
+ * UNKNOWN_EVENT indicates this buffer represents serialized
data of other
Review comment:
The descriptions should also be adjusted.
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