forked from cerc-io/plugeth
accounts/abi/bind/backends: fix race condition in simulated backend (#23898)
Now that `SimulatedBackend.SuggestGasPrice` inspects member values, a lock needs to be added to prevent a race condition.
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@ -462,6 +462,9 @@ func (b *SimulatedBackend) PendingNonceAt(ctx context.Context, account common.Ad
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// SuggestGasPrice implements ContractTransactor.SuggestGasPrice. Since the simulated
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// chain doesn't have miners, we just return a gas price of 1 for any call.
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func (b *SimulatedBackend) SuggestGasPrice(ctx context.Context) (*big.Int, error) {
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b.mu.Lock()
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defer b.mu.Unlock()
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if b.pendingBlock.Header().BaseFee != nil {
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return b.pendingBlock.Header().BaseFee, nil
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}
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