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Implement transaction pool basics

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This commit is contained in:
Michael Sproul
2019-03-06 14:46:12 +11:00
parent d936bc0e5d
commit 8f4a2fbde1
10 changed files with 377 additions and 15 deletions
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38
eth2/state_processing/src/per_block_processing/verify_transfer.rs
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@@ -15,6 +15,19 @@ pub fn verify_transfer(
state: &BeaconState,
transfer: &Transfer,
spec: &ChainSpec,
) -> Result<(), Error> {
verify_transfer_partial(state, transfer, spec, false)
}
/// Parametric version of `verify_transfer` that allows some checks to be skipped.
///
/// In everywhere except the operation pool, `verify_transfer` should be preferred over this
/// function.
pub fn verify_transfer_partial(
state: &BeaconState,
transfer: &Transfer,
spec: &ChainSpec,
for_op_pool: bool,
) -> Result<(), Error> {
let sender_balance = *state
.validator_balances
@@ -27,17 +40,18 @@ pub fn verify_transfer(
.ok_or_else(|| Error::Invalid(Invalid::FeeOverflow(transfer.amount, transfer.fee)))?;
verify!(
sender_balance >= transfer.amount,
for_op_pool || sender_balance >= transfer.amount,
Invalid::FromBalanceInsufficient(transfer.amount, sender_balance)
);
verify!(
sender_balance >= transfer.fee,
for_op_pool || sender_balance >= transfer.fee,
Invalid::FromBalanceInsufficient(transfer.fee, sender_balance)
);
verify!(
(sender_balance == total_amount)
for_op_pool
|| (sender_balance == total_amount)
|| (sender_balance >= (total_amount + spec.min_deposit_amount)),
Invalid::InvalidResultingFromBalance(
sender_balance - total_amount,
@@ -45,10 +59,17 @@ pub fn verify_transfer(
)
);
verify!(
state.slot == transfer.slot,
Invalid::StateSlotMismatch(state.slot, transfer.slot)
);
if for_op_pool {
verify!(
state.slot <= transfer.slot,
Invalid::TransferSlotInPast(state.slot, transfer.slot)
);
} else {
verify!(
state.slot == transfer.slot,
Invalid::StateSlotMismatch(state.slot, transfer.slot)
);
}
let sender_validator = state
.validator_registry
@@ -57,7 +78,8 @@ pub fn verify_transfer(
let epoch = state.slot.epoch(spec.slots_per_epoch);
verify!(
sender_validator.is_withdrawable_at(epoch)
for_op_pool
|| sender_validator.is_withdrawable_at(epoch)
|| sender_validator.activation_epoch == spec.far_future_epoch,
Invalid::FromValidatorIneligableForTransfer(transfer.sender)
);