return totalReleased.get();
    }

    /**
     * Get number of currently active regions
     *
     * @return active regions (allocated - released)
     */
    public long getActiveRegions() {
        return totalAllocated.get() - totalReleased.get();
    }

    /**
     * Get number of available send regions in pool
     *
     * @return available send regions
     */

        }
    }
    
    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
package jcifs.internal.smb2.rdma.disni;

        assertTrue(bufferManager.getTotalAllocated() > initialAllocated, "Total allocated should increase");
        assertTrue(bufferManager.getActiveRegions() > 0, "Active regions should be positive");

        // Release regions
        bufferManager.releaseSendRegion(region1);
        bufferManager.releaseReceiveRegion(region2);
    }

    @Test

            // Test buffer pooling statistics
            long initialAllocated = bufferManager.getTotalAllocated();
            long initialActive = bufferManager.getActiveRegions();

            assertTrue(initialAllocated >= 2, "Should have allocated at least 2 regions");
            assertTrue(initialActive >= 2, "Should have at least 2 active regions");