/**
 * Native mlock addon entry point.
 * Loaded via node-gyp-build which selects the correct pre-built binary for
 * the current platform/Node.js version, or falls back to building from source.
 *
 * Returns null if the native addon is not available, allowing the JS layer
 * to fall back to pure-JS zeroing.
 */
try {
    module.exports = require('node-gyp-build')(__dirname);
} catch (_e) {
    module.exports = null;
}