dant3 commented on code in PR #7387:
URL: https://github.com/apache/ignite-3/pull/7387#discussion_r2811753785
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modules/file-io/src/main/java/org/apache/ignite/internal/fileio/FileIoMetrics.java:
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@@ -15,16 +15,25 @@
* limitations under the License.
*/
-package org.apache.ignite.internal.cli.core.style;
+package org.apache.ignite.internal.fileio;
/**
- * Provider for the current color scheme.
+ * Metrics for file I/O operations.
*/
-public interface ColorSchemeProvider {
+public interface FileIoMetrics {
/**
- * Returns the current color scheme.
+ * Records a read operation.
*
- * @return Current color scheme, never null.
+ * @param bytesRead Number of bytes read (positive on success, 0 for EOF,
-1 on error).
+ * @param durationNanos Operation duration in nanoseconds.
*/
- ColorScheme colorScheme();
+ void recordRead(int bytesRead, long durationNanos);
+
+ /**
+ * Records a write operation.
+ *
+ * @param bytesWritten Number of bytes written (positive on success, 0 or
-1 on error).
Review Comment:
0 means nothing was read/written. Its not an error. For example while
reading you reached end of the data stream, or you were trying to write in
non-blocking channel but that channel couldn't write anything without blocking
and hence gently refused to write. All of that are standard java nio behaviour.
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