objectcache: Deprecate unused methods in BagOStuff.php

These methods: getSegmentationSize() and getSegmentedValueMaxSize()
in both the BagOStuff.php and MediumSpecificBagOStuff classes seem
unused for a while now. Codesearch shows that we have no callers of
both the parent and child class overrides.

Since these are public interfaces, they'll have to go through the
deprecation process.

Introduced in b09b3980f991b (I0667a02612526d8ddfd91d5) and later
in 2021, usage was all removed in 942f708b61d8d7 (I5c4bd74379bc45).

Change-Id: Ie529841e673abc7b68f870539dbb23a34a292c89

2 files changed, 12 insertions, 0 deletions

diff --git a/includes/libs/objectcache/BagOStuff.php b/includes/libs/objectcache/BagOStuff.php
index 85da21bb3cee..96a79924c872 100644
--- a/includes/libs/objectcache/BagOStuff.php
+++ b/includes/libs/objectcache/BagOStuff.php
@@ -567,18 +567,22 @@ abstract class BagOStuff implements
 	}
 
 	/**
+	 * @deprecated since 1.43, not used anywhere.
 	 * @return int|float The chunk size, in bytes, of segmented objects (INF for no limit)
 	 * @since 1.34
 	 */
 	public function getSegmentationSize() {
+		wfDeprecated( __METHOD__, '1.43' );
 		return INF;
 	}
 
 	/**
+	 * @deprecated since 1.43, not used anywhere.
 	 * @return int|float Maximum total segmented object size in bytes (INF for no limit)
 	 * @since 1.34
 	 */
 	public function getSegmentedValueMaxSize() {
+		wfDeprecated( __METHOD__, '1.43' );
 		return INF;
 	}
 
diff --git a/includes/libs/objectcache/MediumSpecificBagOStuff.php b/includes/libs/objectcache/MediumSpecificBagOStuff.php
index c169d3e2e1f7..6d4bd0fe2d95 100644
--- a/includes/libs/objectcache/MediumSpecificBagOStuff.php
+++ b/includes/libs/objectcache/MediumSpecificBagOStuff.php
@@ -988,11 +988,19 @@ abstract class MediumSpecificBagOStuff extends BagOStuff {
 		return $this->attrMap[$flag] ?? self::QOS_UNKNOWN;
 	}
 
+	/**
+	 * @deprecated since 1.43, not used anywhere.
+	 */
 	public function getSegmentationSize() {
+		wfDeprecated( __METHOD__, '1.43' );
 		return $this->segmentationSize;
 	}
 
+	/**
+	 * @deprecated since 1.43, not used anywhere.
+	 */
 	public function getSegmentedValueMaxSize() {
+		wfDeprecated( __METHOD__, '1.43' );
 		return $this->segmentedValueMaxSize;
 	}