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Adding tx detail cache to sendRawTransaction #101

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Merged
willmeister merged 2 commits into from
Apr 22, 2020
Merged

Adding tx detail cache to sendRawTransaction #101

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f8f7a51
Caching tx details while mapping tx gets mined to speed up sendRawTra…
willmeister Apr 22, 2020
dbe53d6
adding total time spent to sendRawTransaction logging
willmeister Apr 22, 2020
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50 changes: 32 additions & 18 deletions packages/rollup-full-node/src/app/web3-rpc-handler.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -47,7 +47,9 @@ const latestBlock: string = 'latest'

export class DefaultWeb3Handler
implements Web3Handler, FullnodeHandler, L1ToL2TransactionListener {
private readonly ovmHashToOvmTransactionCache: Object = {}
protected blockTimestamps: Object = {}

/**
* Creates a local node, deploys the L2ExecutionManager to it, and returns a
* Web3Handler that handles Web3 requests to it.
Expand Down Expand Up @@ -540,7 +542,8 @@ export class DefaultWeb3Handler
}

public async sendRawTransaction(rawOvmTx: string): Promise<string> {
const timestamp = this.getTimestamp()
const debugTime = new Date().getTime()
const blockTimestamp = this.getTimestamp()
log.debug('Sending raw transaction with params:', rawOvmTx)

// Decode the OVM transaction -- this will be used to construct our internal transaction
Expand Down Expand Up @@ -609,10 +612,13 @@ export class DefaultWeb3Handler
log.debug(`Transaction mined successfully: ${rawOvmTx}`)
await this.processTransactionEvents(receipt)
}
this.blockTimestamps[receipt.blockNumber] = timestamp
this.blockTimestamps[receipt.blockNumber] = blockTimestamp
})

log.debug(`Completed send raw tx [${rawOvmTx}]. Response: [${ovmTxHash}]`)
log.debug(
`Completed send raw tx [${rawOvmTx}]. Response: [${ovmTxHash}]. Total time: ${new Date().getTime() -
debugTime}ms`
)
// Return the *OVM* tx hash. We can do this because we store a mapping to the ovmTxHashs in the EM contract.
return ovmTxHash
}
Expand Down Expand Up @@ -755,21 +761,26 @@ export class DefaultWeb3Handler
)

const res = await this.context.provider.sendTransaction(signedTx)
try {
const receipt = await this.context.provider.waitForTransaction(res.hash)
log.debug(
`Got receipt mapping ${ovmTxHash} to ${internalTxHash}: ${JSON.stringify(
receipt
)}`
)
} catch (e) {
logError(
log,
`Error mapping ovmTxHash: ${ovmTxHash} to internal tx hash: ${internalTxHash}`,
e
)
throw e
}
this.ovmHashToOvmTransactionCache[ovmTxHash] = signedOvmTransaction

this.context.provider
.waitForTransaction(res.hash)
.then((receipt) => {
log.debug(
`Got receipt mapping ${ovmTxHash} to ${internalTxHash}: ${JSON.stringify(
receipt
)}`
)
delete this.ovmHashToOvmTransactionCache[ovmTxHash]
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@karlfloersch karlfloersch Apr 22, 2020

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Ah nice I was wondering if we'd run into any problems with the cache being too large but this looks good!

})
.catch((e) => {
logError(
log,
`Error mapping ovmTxHash: ${ovmTxHash} to internal tx hash: ${internalTxHash}. This should never happen!`,
e
)
throw e
})
}

/**
Expand Down Expand Up @@ -801,6 +812,9 @@ export class DefaultWeb3Handler
* @returns The signed OVM transaction if one exists, else undefined.
*/
private async getOvmTransactionByHash(ovmTxHash: string): Promise<string> {
if (ovmTxHash in this.ovmHashToOvmTransactionCache) {
return this.ovmHashToOvmTransactionCache[ovmTxHash]
}
return this.context.executionManager.getOvmTransaction(add0x(ovmTxHash))
}

Expand Down