zhztheplayer commented on a change in pull request #11800:
URL: https://github.com/apache/arrow/pull/11800#discussion_r760922907
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File path:
java/memory/memory-netty/src/test/java/org/apache/arrow/memory/TestBaseAllocator.java
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@@ -159,6 +159,87 @@ public void testAllocator_transferOwnership() throws
Exception {
}
}
+ @Test
+ public void testAllocator_transferOwnershipWithDifferentListeners() throws
Exception {
+ try (final RootAllocator rootAllocator =
+ new RootAllocator(MAX_ALLOCATION)) {
+ TestAllocationListener l1 = new TestAllocationListener();
+ TestAllocationListener l2 = new TestAllocationListener();
+ final BufferAllocator childAllocator1 =
+ rootAllocator.newChildAllocator("changeOwnership1", l1, 0,
MAX_ALLOCATION);
+ final BufferAllocator childAllocator2 =
+ rootAllocator.newChildAllocator("changeOwnership2", l2, 0,
MAX_ALLOCATION);
+
+ ArrowBuf buffer1 = childAllocator1.buffer(1024L);
+
+ // initial states
+ assertEquals(1, l1.getNumCalls());
+ assertEquals(0, l1.getNumReleaseCalls());
+ assertEquals(0, l2.getNumCalls());
+ assertEquals(0, l2.getNumReleaseCalls());
+
+ // do transfer
+ OwnershipTransferResult transferResult = buffer1.getReferenceManager()
+ .transferOwnership(buffer1, childAllocator2);
+ assertTrue(transferResult.getAllocationFit());
+ ArrowBuf buffer2 = transferResult.getTransferredBuffer();
+
+ // reservations from l1 should also be transferred to l2 during buffer
transferring
+ assertEquals(1, l1.getNumCalls());
+ assertEquals(1, l1.getNumReleaseCalls());
Review comment:
Umm... Do we have to consider the test case as a specific fix for this
specific bug/issue?
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