Mukan Erkin Törük
88dd97a9f8
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35 lines
1.4 KiB
Go
35 lines
1.4 KiB
Go
package client
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import (
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sdk "git.cw.tr/mukan-network/mukan-sdk/types"
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"git.cw.tr/mukan-network/mukan-ibc/modules/core/02-client/keeper"
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"git.cw.tr/mukan-network/mukan-ibc/modules/core/02-client/types"
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ibctm "git.cw.tr/mukan-network/mukan-ibc/modules/light-clients/07-tendermint"
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)
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// BeginBlocker is used to perform IBC client upgrades
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func BeginBlocker(ctx sdk.Context, k *keeper.Keeper) {
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plan, err := k.GetUpgradePlan(ctx)
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if err == nil {
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// Once we are at the last block this chain will commit, set the upgraded consensus state
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// so that IBC clients can use the last NextValidatorsHash as a trusted kernel for verifying
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// headers on the next version of the chain.
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// Set the time to the last block time of the current chain.
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// In order for a client to upgrade successfully, the first block of the new chain must be committed
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// within the trusting period of the last block time on this chain.
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_, err := k.GetUpgradedClient(ctx, plan.Height)
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if err == nil && ctx.BlockHeight() == plan.Height-1 {
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upgradedConsState := &ibctm.ConsensusState{
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Timestamp: ctx.BlockTime(),
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NextValidatorsHash: ctx.BlockHeader().NextValidatorsHash,
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}
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bz := types.MustMarshalConsensusState(k.Codec(), upgradedConsState)
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// SetUpgradedConsensusState always returns nil, hence the blank here.
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_ = k.SetUpgradedConsensusState(ctx, plan.Height, bz)
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keeper.EmitUpgradeChainEvent(ctx, plan.Height)
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}
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}
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}
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