private final ConcurrentLinkedQueue<RdmaMemoryRegion> availableSendRegions;
    private final ConcurrentLinkedQueue<RdmaMemoryRegion> availableReceiveRegions;
    private final AtomicLong totalAllocated;
    private final AtomicLong totalReleased;

    // Buffer pool configuration
    private final int initialSendBuffers = 32;
    private final int initialReceiveBuffers = 64;

            if (holder.closed) {
                closed++;
            } else {
                active++;
            }
        }

        return Map.of("totalAllocated", totalAllocated.get(), "totalReleased", totalReleased.get(), "totalLeaks", totalLeaks.get(),
                "activeResources", active, "closedResources", closed, "trackedResources", activeResources.size());
    }

    /**

            region.close();
            totalReleased.incrementAndGet();
        }
    }
    
    public long getTotalAllocated() { return totalAllocated.get(); }
    public long getTotalReleased() { return totalReleased.get(); }
    public long getActiveRegions() { return totalAllocated.get() - totalReleased.get(); }
}
```

### 4.5 RDMA Provider Implementations

#### 4.5.1 DiSNI Provider (InfiniBand/RoCE)
```java

        assertNotNull(resourceId);
        assertTrue(resourceId.contains("TestResource"));

        Map<String, Object> stats = resourceManager.getStatistics();
        assertTrue((long) stats.get("totalAllocated") > 0);
    }

    @Test
    @DisplayName("Test resource close tracking")
    void testResourceCloseTracking() throws Exception {
        TestResource resource = new TestResource("test2");