624 lines
21 KiB
Rust
624 lines
21 KiB
Rust
use {
|
|
crate::{
|
|
cluster_info::Node,
|
|
gossip_service::discover_cluster,
|
|
rpc::JsonRpcConfig,
|
|
validator::{Validator, ValidatorConfig, ValidatorExit, ValidatorStartProgress},
|
|
},
|
|
solana_client::rpc_client::RpcClient,
|
|
solana_ledger::{blockstore::create_new_ledger, create_new_tmp_ledger},
|
|
solana_net_utils::PortRange,
|
|
solana_runtime::{
|
|
bank_forks::{ArchiveFormat, SnapshotConfig, SnapshotVersion},
|
|
genesis_utils::create_genesis_config_with_leader_ex,
|
|
hardened_unpack::MAX_GENESIS_ARCHIVE_UNPACKED_SIZE,
|
|
},
|
|
solana_sdk::{
|
|
account::{Account, AccountSharedData},
|
|
clock::{Slot, DEFAULT_MS_PER_SLOT},
|
|
commitment_config::CommitmentConfig,
|
|
epoch_schedule::EpochSchedule,
|
|
fee_calculator::{FeeCalculator, FeeRateGovernor},
|
|
hash::Hash,
|
|
native_token::sol_to_lamports,
|
|
pubkey::Pubkey,
|
|
rent::Rent,
|
|
signature::{read_keypair_file, write_keypair_file, Keypair, Signer},
|
|
},
|
|
std::{
|
|
collections::HashMap,
|
|
fs::remove_dir_all,
|
|
net::{IpAddr, Ipv4Addr, SocketAddr},
|
|
path::{Path, PathBuf},
|
|
sync::{Arc, RwLock},
|
|
thread::sleep,
|
|
time::Duration,
|
|
},
|
|
};
|
|
|
|
#[derive(Clone)]
|
|
pub struct ProgramInfo {
|
|
pub program_id: Pubkey,
|
|
pub loader: Pubkey,
|
|
pub program_path: PathBuf,
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
pub struct TestValidatorNodeConfig {
|
|
gossip_addr: SocketAddr,
|
|
port_range: PortRange,
|
|
bind_ip_addr: IpAddr,
|
|
}
|
|
|
|
impl Default for TestValidatorNodeConfig {
|
|
fn default() -> Self {
|
|
const MIN_PORT_RANGE: u16 = 1024;
|
|
const MAX_PORT_RANGE: u16 = 65535;
|
|
|
|
let bind_ip_addr = IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0));
|
|
let port_range = (MIN_PORT_RANGE, MAX_PORT_RANGE);
|
|
|
|
Self {
|
|
gossip_addr: socketaddr!("127.0.0.1:0"),
|
|
port_range,
|
|
bind_ip_addr,
|
|
}
|
|
}
|
|
}
|
|
|
|
#[derive(Default)]
|
|
pub struct TestValidatorGenesis {
|
|
fee_rate_governor: FeeRateGovernor,
|
|
ledger_path: Option<PathBuf>,
|
|
rent: Rent,
|
|
rpc_config: JsonRpcConfig,
|
|
rpc_ports: Option<(u16, u16)>, // (JsonRpc, JsonRpcPubSub), None == random ports
|
|
warp_slot: Option<Slot>,
|
|
no_bpf_jit: bool,
|
|
accounts: HashMap<Pubkey, AccountSharedData>,
|
|
programs: Vec<ProgramInfo>,
|
|
epoch_schedule: Option<EpochSchedule>,
|
|
node_config: TestValidatorNodeConfig,
|
|
pub validator_exit: Arc<RwLock<ValidatorExit>>,
|
|
pub start_progress: Arc<RwLock<ValidatorStartProgress>>,
|
|
pub authorized_voter_keypairs: Arc<RwLock<Vec<Arc<Keypair>>>>,
|
|
}
|
|
|
|
impl TestValidatorGenesis {
|
|
pub fn ledger_path<P: Into<PathBuf>>(&mut self, ledger_path: P) -> &mut Self {
|
|
self.ledger_path = Some(ledger_path.into());
|
|
self
|
|
}
|
|
|
|
/// Check if a given TestValidator ledger has already been initialized
|
|
pub fn ledger_exists(ledger_path: &Path) -> bool {
|
|
ledger_path.join("vote-account-keypair.json").exists()
|
|
}
|
|
|
|
pub fn fee_rate_governor(&mut self, fee_rate_governor: FeeRateGovernor) -> &mut Self {
|
|
self.fee_rate_governor = fee_rate_governor;
|
|
self
|
|
}
|
|
|
|
pub fn epoch_schedule(&mut self, epoch_schedule: EpochSchedule) -> &mut Self {
|
|
self.epoch_schedule = Some(epoch_schedule);
|
|
self
|
|
}
|
|
|
|
pub fn rent(&mut self, rent: Rent) -> &mut Self {
|
|
self.rent = rent;
|
|
self
|
|
}
|
|
|
|
pub fn rpc_config(&mut self, rpc_config: JsonRpcConfig) -> &mut Self {
|
|
self.rpc_config = rpc_config;
|
|
self
|
|
}
|
|
|
|
pub fn rpc_port(&mut self, rpc_port: u16) -> &mut Self {
|
|
self.rpc_ports = Some((rpc_port, rpc_port + 1));
|
|
self
|
|
}
|
|
|
|
pub fn faucet_addr(&mut self, faucet_addr: Option<SocketAddr>) -> &mut Self {
|
|
self.rpc_config.faucet_addr = faucet_addr;
|
|
self
|
|
}
|
|
|
|
pub fn warp_slot(&mut self, warp_slot: Slot) -> &mut Self {
|
|
self.warp_slot = Some(warp_slot);
|
|
self
|
|
}
|
|
|
|
pub fn bpf_jit(&mut self, bpf_jit: bool) -> &mut Self {
|
|
self.no_bpf_jit = !bpf_jit;
|
|
self
|
|
}
|
|
|
|
pub fn gossip_host(&mut self, gossip_host: IpAddr) -> &mut Self {
|
|
self.node_config.gossip_addr.set_ip(gossip_host);
|
|
self
|
|
}
|
|
|
|
pub fn gossip_port(&mut self, gossip_port: u16) -> &mut Self {
|
|
self.node_config.gossip_addr.set_port(gossip_port);
|
|
self
|
|
}
|
|
|
|
pub fn port_range(&mut self, port_range: PortRange) -> &mut Self {
|
|
self.node_config.port_range = port_range;
|
|
self
|
|
}
|
|
|
|
pub fn bind_ip_addr(&mut self, bind_ip_addr: IpAddr) -> &mut Self {
|
|
self.node_config.bind_ip_addr = bind_ip_addr;
|
|
self
|
|
}
|
|
|
|
/// Add an account to the test environment
|
|
pub fn add_account(&mut self, address: Pubkey, account: AccountSharedData) -> &mut Self {
|
|
self.accounts.insert(address, account);
|
|
self
|
|
}
|
|
|
|
pub fn add_accounts<T>(&mut self, accounts: T) -> &mut Self
|
|
where
|
|
T: IntoIterator<Item = (Pubkey, AccountSharedData)>,
|
|
{
|
|
for (address, account) in accounts {
|
|
self.add_account(address, account);
|
|
}
|
|
self
|
|
}
|
|
|
|
pub fn clone_accounts<T>(&mut self, addresses: T, rpc_client: &RpcClient) -> &mut Self
|
|
where
|
|
T: IntoIterator<Item = Pubkey>,
|
|
{
|
|
for address in addresses {
|
|
info!("Fetching {} over RPC...", address);
|
|
let account = rpc_client.get_account(&address).unwrap_or_else(|err| {
|
|
error!("Failed to fetch {}: {}", address, err);
|
|
crate::validator::abort();
|
|
});
|
|
self.add_account(address, AccountSharedData::from(account));
|
|
}
|
|
self
|
|
}
|
|
|
|
/// Add an account to the test environment with the account data in the provided `filename`
|
|
pub fn add_account_with_file_data(
|
|
&mut self,
|
|
address: Pubkey,
|
|
lamports: u64,
|
|
owner: Pubkey,
|
|
filename: &str,
|
|
) -> &mut Self {
|
|
self.add_account(
|
|
address,
|
|
AccountSharedData::from(Account {
|
|
lamports,
|
|
data: solana_program_test::read_file(
|
|
solana_program_test::find_file(filename).unwrap_or_else(|| {
|
|
panic!("Unable to locate {}", filename);
|
|
}),
|
|
),
|
|
owner,
|
|
executable: false,
|
|
rent_epoch: 0,
|
|
}),
|
|
)
|
|
}
|
|
|
|
/// Add an account to the test environment with the account data in the provided as a base 64
|
|
/// string
|
|
pub fn add_account_with_base64_data(
|
|
&mut self,
|
|
address: Pubkey,
|
|
lamports: u64,
|
|
owner: Pubkey,
|
|
data_base64: &str,
|
|
) -> &mut Self {
|
|
self.add_account(
|
|
address,
|
|
AccountSharedData::from(Account {
|
|
lamports,
|
|
data: base64::decode(data_base64)
|
|
.unwrap_or_else(|err| panic!("Failed to base64 decode: {}", err)),
|
|
owner,
|
|
executable: false,
|
|
rent_epoch: 0,
|
|
}),
|
|
)
|
|
}
|
|
|
|
/// Add a BPF program to the test environment.
|
|
///
|
|
/// `program_name` will also used to locate the BPF shared object in the current or fixtures
|
|
/// directory.
|
|
pub fn add_program(&mut self, program_name: &str, program_id: Pubkey) -> &mut Self {
|
|
let program_path = solana_program_test::find_file(&format!("{}.so", program_name))
|
|
.unwrap_or_else(|| panic!("Unable to locate program {}", program_name));
|
|
|
|
self.programs.push(ProgramInfo {
|
|
program_id,
|
|
loader: solana_sdk::bpf_loader::id(),
|
|
program_path,
|
|
});
|
|
self
|
|
}
|
|
|
|
/// Add a list of programs to the test environment.
|
|
///pub fn add_programs_with_path<'a>(&'a mut self, programs: &[ProgramInfo]) -> &'a mut Self {
|
|
pub fn add_programs_with_path(&mut self, programs: &[ProgramInfo]) -> &mut Self {
|
|
for program in programs {
|
|
self.programs.push(program.clone());
|
|
}
|
|
self
|
|
}
|
|
|
|
/// Start a test validator with the address of the mint account that will receive tokens
|
|
/// created at genesis.
|
|
///
|
|
pub fn start_with_mint_address(
|
|
&self,
|
|
mint_address: Pubkey,
|
|
) -> Result<TestValidator, Box<dyn std::error::Error>> {
|
|
TestValidator::start(mint_address, self)
|
|
}
|
|
|
|
/// Start a test validator
|
|
///
|
|
/// Returns a new `TestValidator` as well as the keypair for the mint account that will receive tokens
|
|
/// created at genesis.
|
|
///
|
|
/// This function panics on initialization failure.
|
|
pub fn start(&self) -> (TestValidator, Keypair) {
|
|
let mint_keypair = Keypair::new();
|
|
TestValidator::start(mint_keypair.pubkey(), self)
|
|
.map(|test_validator| (test_validator, mint_keypair))
|
|
.expect("Test validator failed to start")
|
|
}
|
|
}
|
|
|
|
pub struct TestValidator {
|
|
ledger_path: PathBuf,
|
|
preserve_ledger: bool,
|
|
rpc_pubsub_url: String,
|
|
rpc_url: String,
|
|
tpu: SocketAddr,
|
|
gossip: SocketAddr,
|
|
validator: Option<Validator>,
|
|
vote_account_address: Pubkey,
|
|
}
|
|
|
|
impl TestValidator {
|
|
/// Create and start a `TestValidator` with no transaction fees and minimal rent.
|
|
/// Faucet optional.
|
|
///
|
|
/// This function panics on initialization failure.
|
|
pub fn with_no_fees(mint_address: Pubkey, faucet_addr: Option<SocketAddr>) -> Self {
|
|
TestValidatorGenesis::default()
|
|
.fee_rate_governor(FeeRateGovernor::new(0, 0))
|
|
.rent(Rent {
|
|
lamports_per_byte_year: 1,
|
|
exemption_threshold: 1.0,
|
|
..Rent::default()
|
|
})
|
|
.faucet_addr(faucet_addr)
|
|
.start_with_mint_address(mint_address)
|
|
.expect("validator start failed")
|
|
}
|
|
|
|
/// Create and start a `TestValidator` with custom transaction fees and minimal rent.
|
|
/// Faucet optional.
|
|
///
|
|
/// This function panics on initialization failure.
|
|
pub fn with_custom_fees(
|
|
mint_address: Pubkey,
|
|
target_lamports_per_signature: u64,
|
|
faucet_addr: Option<SocketAddr>,
|
|
) -> Self {
|
|
TestValidatorGenesis::default()
|
|
.fee_rate_governor(FeeRateGovernor::new(target_lamports_per_signature, 0))
|
|
.rent(Rent {
|
|
lamports_per_byte_year: 1,
|
|
exemption_threshold: 1.0,
|
|
..Rent::default()
|
|
})
|
|
.faucet_addr(faucet_addr)
|
|
.start_with_mint_address(mint_address)
|
|
.expect("validator start failed")
|
|
}
|
|
|
|
/// Initialize the ledger directory
|
|
///
|
|
/// If `ledger_path` is `None`, a temporary ledger will be created. Otherwise the ledger will
|
|
/// be initialized in the provided directory if it doesn't already exist.
|
|
///
|
|
/// Returns the path to the ledger directory.
|
|
fn initialize_ledger(
|
|
mint_address: Pubkey,
|
|
config: &TestValidatorGenesis,
|
|
) -> Result<PathBuf, Box<dyn std::error::Error>> {
|
|
let validator_identity = Keypair::new();
|
|
let validator_vote_account = Keypair::new();
|
|
let validator_stake_account = Keypair::new();
|
|
let validator_identity_lamports = sol_to_lamports(500.);
|
|
let validator_stake_lamports = sol_to_lamports(1_000_000.);
|
|
let mint_lamports = sol_to_lamports(500_000_000.);
|
|
|
|
let mut accounts = config.accounts.clone();
|
|
for (address, account) in solana_program_test::programs::spl_programs(&config.rent) {
|
|
accounts.entry(address).or_insert(account);
|
|
}
|
|
for program in &config.programs {
|
|
let data = solana_program_test::read_file(&program.program_path);
|
|
accounts.insert(
|
|
program.program_id,
|
|
AccountSharedData::from(Account {
|
|
lamports: Rent::default().minimum_balance(data.len()).min(1),
|
|
data,
|
|
owner: program.loader,
|
|
executable: true,
|
|
rent_epoch: 0,
|
|
}),
|
|
);
|
|
}
|
|
|
|
let mut genesis_config = create_genesis_config_with_leader_ex(
|
|
mint_lamports,
|
|
&mint_address,
|
|
&validator_identity.pubkey(),
|
|
&validator_vote_account.pubkey(),
|
|
&validator_stake_account.pubkey(),
|
|
validator_stake_lamports,
|
|
validator_identity_lamports,
|
|
config.fee_rate_governor.clone(),
|
|
config.rent,
|
|
solana_sdk::genesis_config::ClusterType::Development,
|
|
accounts.into_iter().collect(),
|
|
);
|
|
genesis_config.epoch_schedule = config
|
|
.epoch_schedule
|
|
.unwrap_or_else(EpochSchedule::without_warmup);
|
|
|
|
let ledger_path = match &config.ledger_path {
|
|
None => create_new_tmp_ledger!(&genesis_config).0,
|
|
Some(ledger_path) => {
|
|
if TestValidatorGenesis::ledger_exists(ledger_path) {
|
|
return Ok(ledger_path.to_path_buf());
|
|
}
|
|
|
|
let _ = create_new_ledger(
|
|
ledger_path,
|
|
&genesis_config,
|
|
MAX_GENESIS_ARCHIVE_UNPACKED_SIZE,
|
|
solana_ledger::blockstore_db::AccessType::PrimaryOnly,
|
|
)
|
|
.map_err(|err| {
|
|
format!(
|
|
"Failed to create ledger at {}: {}",
|
|
ledger_path.display(),
|
|
err
|
|
)
|
|
})?;
|
|
ledger_path.to_path_buf()
|
|
}
|
|
};
|
|
|
|
write_keypair_file(
|
|
&validator_identity,
|
|
ledger_path.join("validator-keypair.json").to_str().unwrap(),
|
|
)?;
|
|
|
|
// `ledger_exists` should fail until the vote account keypair is written
|
|
assert!(!TestValidatorGenesis::ledger_exists(&ledger_path));
|
|
|
|
write_keypair_file(
|
|
&validator_vote_account,
|
|
ledger_path
|
|
.join("vote-account-keypair.json")
|
|
.to_str()
|
|
.unwrap(),
|
|
)?;
|
|
|
|
Ok(ledger_path)
|
|
}
|
|
|
|
/// Starts a TestValidator at the provided ledger directory
|
|
fn start(
|
|
mint_address: Pubkey,
|
|
config: &TestValidatorGenesis,
|
|
) -> Result<Self, Box<dyn std::error::Error>> {
|
|
let preserve_ledger = config.ledger_path.is_some();
|
|
let ledger_path = TestValidator::initialize_ledger(mint_address, config)?;
|
|
|
|
let validator_identity =
|
|
read_keypair_file(ledger_path.join("validator-keypair.json").to_str().unwrap())?;
|
|
let validator_vote_account = read_keypair_file(
|
|
ledger_path
|
|
.join("vote-account-keypair.json")
|
|
.to_str()
|
|
.unwrap(),
|
|
)?;
|
|
|
|
let mut node = Node::new_single_bind(
|
|
&validator_identity.pubkey(),
|
|
&config.node_config.gossip_addr,
|
|
config.node_config.port_range,
|
|
config.node_config.bind_ip_addr,
|
|
);
|
|
if let Some((rpc, rpc_pubsub)) = config.rpc_ports {
|
|
node.info.rpc = SocketAddr::new(node.info.gossip.ip(), rpc);
|
|
node.info.rpc_pubsub = SocketAddr::new(node.info.gossip.ip(), rpc_pubsub);
|
|
}
|
|
|
|
let vote_account_address = validator_vote_account.pubkey();
|
|
let rpc_url = format!("http://{}", node.info.rpc);
|
|
let rpc_pubsub_url = format!("ws://{}/", node.info.rpc_pubsub);
|
|
let tpu = node.info.tpu;
|
|
let gossip = node.info.gossip;
|
|
|
|
let mut rpc_config = config.rpc_config.clone();
|
|
rpc_config.identity_pubkey = validator_identity.pubkey();
|
|
|
|
{
|
|
let mut authorized_voter_keypairs = config.authorized_voter_keypairs.write().unwrap();
|
|
if !authorized_voter_keypairs
|
|
.iter()
|
|
.any(|x| x.pubkey() == vote_account_address)
|
|
{
|
|
authorized_voter_keypairs.push(Arc::new(validator_vote_account))
|
|
}
|
|
}
|
|
|
|
let validator_config = ValidatorConfig {
|
|
rpc_addrs: Some((
|
|
SocketAddr::new(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)), node.info.rpc.port()),
|
|
SocketAddr::new(
|
|
IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)),
|
|
node.info.rpc_pubsub.port(),
|
|
),
|
|
)),
|
|
rpc_config,
|
|
accounts_hash_interval_slots: 100,
|
|
account_paths: vec![ledger_path.join("accounts")],
|
|
poh_verify: false, // Skip PoH verification of ledger on startup for speed
|
|
snapshot_config: Some(SnapshotConfig {
|
|
snapshot_interval_slots: 100,
|
|
snapshot_path: ledger_path.join("snapshot"),
|
|
snapshot_package_output_path: ledger_path.to_path_buf(),
|
|
archive_format: ArchiveFormat::Tar,
|
|
snapshot_version: SnapshotVersion::default(),
|
|
}),
|
|
enforce_ulimit_nofile: false,
|
|
warp_slot: config.warp_slot,
|
|
bpf_jit: !config.no_bpf_jit,
|
|
validator_exit: config.validator_exit.clone(),
|
|
rocksdb_compaction_interval: Some(100), // Compact every 100 slots
|
|
max_ledger_shreds: Some(10_000), /* 10,000 was derived empirically by watching the size
|
|
of the rocksdb/ directory self-limit itself to the
|
|
40MB-150MB range when running `solana-test-validator` */
|
|
no_wait_for_vote_to_start_leader: true,
|
|
..ValidatorConfig::default()
|
|
};
|
|
|
|
let validator = Some(Validator::new(
|
|
node,
|
|
&Arc::new(validator_identity),
|
|
&ledger_path,
|
|
&vote_account_address,
|
|
config.authorized_voter_keypairs.clone(),
|
|
vec![],
|
|
&validator_config,
|
|
true, // should_check_duplicate_instance
|
|
config.start_progress.clone(),
|
|
));
|
|
|
|
// Needed to avoid panics in `solana-responder-gossip` in tests that create a number of
|
|
// test validators concurrently...
|
|
discover_cluster(&gossip, 1)
|
|
.map_err(|err| format!("TestValidator startup failed: {:?}", err))?;
|
|
|
|
// This is a hack to delay until the fees are non-zero for test consistency
|
|
// (fees from genesis are zero until the first block with a transaction in it is completed
|
|
// due to a bug in the Bank)
|
|
{
|
|
let rpc_client =
|
|
RpcClient::new_with_commitment(rpc_url.clone(), CommitmentConfig::processed());
|
|
|
|
if let Ok(result) = rpc_client.get_fee_rate_governor() {
|
|
let fee_rate_governor = result.value;
|
|
if fee_rate_governor.target_lamports_per_signature > 0 {
|
|
loop {
|
|
match rpc_client.get_recent_blockhash() {
|
|
Ok((_blockhash, fee_calculator)) => {
|
|
if fee_calculator.lamports_per_signature != 0 {
|
|
break;
|
|
}
|
|
}
|
|
Err(err) => {
|
|
warn!("get_recent_blockhash() failed: {:?}", err);
|
|
break;
|
|
}
|
|
}
|
|
sleep(Duration::from_millis(DEFAULT_MS_PER_SLOT));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
Ok(TestValidator {
|
|
ledger_path,
|
|
preserve_ledger,
|
|
rpc_pubsub_url,
|
|
rpc_url,
|
|
tpu,
|
|
gossip,
|
|
validator,
|
|
vote_account_address,
|
|
})
|
|
}
|
|
|
|
/// Return the validator's TPU address
|
|
pub fn tpu(&self) -> &SocketAddr {
|
|
&self.tpu
|
|
}
|
|
|
|
/// Return the validator's Gossip address
|
|
pub fn gossip(&self) -> &SocketAddr {
|
|
&self.gossip
|
|
}
|
|
|
|
/// Return the validator's JSON RPC URL
|
|
pub fn rpc_url(&self) -> String {
|
|
self.rpc_url.clone()
|
|
}
|
|
|
|
/// Return the validator's JSON RPC PubSub URL
|
|
pub fn rpc_pubsub_url(&self) -> String {
|
|
self.rpc_pubsub_url.clone()
|
|
}
|
|
|
|
/// Return the validator's vote account address
|
|
pub fn vote_account_address(&self) -> Pubkey {
|
|
self.vote_account_address
|
|
}
|
|
|
|
/// Return an RpcClient for the validator. As a convenience, also return a recent blockhash and
|
|
/// associated fee calculator
|
|
pub fn rpc_client(&self) -> (RpcClient, Hash, FeeCalculator) {
|
|
let rpc_client =
|
|
RpcClient::new_with_commitment(self.rpc_url.clone(), CommitmentConfig::processed());
|
|
let (recent_blockhash, fee_calculator) = rpc_client
|
|
.get_recent_blockhash()
|
|
.expect("get_recent_blockhash");
|
|
|
|
(rpc_client, recent_blockhash, fee_calculator)
|
|
}
|
|
|
|
pub fn join(mut self) {
|
|
if let Some(validator) = self.validator.take() {
|
|
validator.join();
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Drop for TestValidator {
|
|
fn drop(&mut self) {
|
|
if let Some(validator) = self.validator.take() {
|
|
validator.close();
|
|
}
|
|
if !self.preserve_ledger {
|
|
remove_dir_all(&self.ledger_path).unwrap_or_else(|err| {
|
|
panic!(
|
|
"Failed to remove ledger directory {}: {}",
|
|
self.ledger_path.display(),
|
|
err
|
|
)
|
|
});
|
|
}
|
|
}
|
|
}
|