async function pingWallet() {
	const address = await current_signer.getAddress();
	const balance = await current_provider.getBalance(address);
	let set = STATE.RPC_PING;
	let rst = 0;
	let r = {
		balance: balance,
		address: address,
	}
	if (balance < g_minBalance) {
		set |= STATE.EVM_BALANCE_LOW;
	} else {
		rst = STATE.EVM_BALANCE_LOW;
	}
	stateChange(r, set, rst);
}

async function pingRpc() {
	let provider = undefined;
	try {
		provider = await provider_connect('default');
	} catch(e) {
		console.error(e);
	}
	if (!provider) {
		stateChange('no provider', STATE.RPC_GONE, STATE.LOCAL_KEY_REQUEST);
		return;
	}
	const network = await current_provider.getNetwork();
	console.debug('chainid', network.chainId);
	if (network.chainId != g_chainId) {
		g_chainId = network.chainId;
		stateChange({'chainId': g_chainId}, STATE.RPC_CHANGE | STATE.RPC_CONNECT);
	}
}