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Merged
abdrasulov merged 3 commits into from
Feb 4, 2026
Merged

Background state handling #334

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3759e53
Add pause/resume methods
abdrasulov Feb 3, 2026
07d2f61
Keep only one timer running
abdrasulov Feb 4, 2026
980c207
Leave state as ready on error
abdrasulov Feb 4, 2026
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18 changes: 13 additions & 5 deletions ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/api/core/ApiRpcSyncer.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ import io.horizontalsystems.ethereumkit.network.ConnectionManager
import io.reactivex.Single
import io.reactivex.disposables.CompositeDisposable
import io.reactivex.schedulers.Schedulers
import java.util.*
import java.util.Timer
import kotlin.concurrent.schedule

class ApiRpcSyncer(
Expand Down Expand Up @@ -52,6 +52,14 @@ class ApiRpcSyncer(
stopTimer()
}

override fun pause() {
stopTimer()
}

override fun resume() {
startTimer()
}

override fun <T: Any> single(rpc: JsonRpc<T>): Single<T> =
rpcApiProvider.single(rpc)
//endregion
Expand All @@ -69,6 +77,8 @@ class ApiRpcSyncer(
}

private fun startTimer() {
if (timer != null) return

timer = Timer().apply {
schedule(0, syncInterval * 1000) {
onFireTimer()
Expand All @@ -85,11 +95,9 @@ class ApiRpcSyncer(
rpcApiProvider.single(BlockNumberJsonRpc())
.subscribeOn(Schedulers.io())
.observeOn(Schedulers.io())
.subscribe({ lastBlockNumber ->
.subscribe { lastBlockNumber ->
listener?.didUpdateLastBlockHeight(lastBlockNumber)
}, {
state = SyncerState.NotReady(it)
}).let {
}.let {
disposables.add(it)
}
}
Expand Down
2 changes: 2 additions & 0 deletions ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/api/core/Interfaces.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,8 @@ interface IRpcSyncer {

fun start()
fun stop()
fun pause()
fun resume()
fun <T: Any> single(rpc: JsonRpc<T>): Single<T>
}

Expand Down
8 changes: 8 additions & 0 deletions ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/api/core/RpcBlockchain.kt
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Expand Up @@ -133,6 +133,14 @@ class RpcBlockchain(
syncer.stop()
}

override fun pause() {
syncer.pause()
}

override fun resume() {
syncer.resume()
}

override fun send(rawTransaction: RawTransaction, signature: Signature): Single<Transaction> {
val transaction = transactionBuilder.transaction(rawTransaction, signature)
val encoded = transactionBuilder.encode(rawTransaction, signature)
Expand Down
4 changes: 4 additions & 0 deletions ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/api/core/WebSocketRpcSyncer.kt
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Expand Up @@ -46,6 +46,10 @@ class WebSocketRpcSyncer(
rpcSocket.stop()
}

override fun pause() = Unit

override fun resume() = Unit

override fun <T: Any> single(rpc: JsonRpc<T>): Single<T> {
return Single.create { emitter ->
send(
Expand Down
8 changes: 8 additions & 0 deletions ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/core/EthereumKit.kt
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Expand Up @@ -148,6 +148,14 @@ class EthereumKit(
connectionManager.stop()
}

fun onEnterForeground() {
blockchain.resume()
}

fun onEnterBackground() {
blockchain.pause()
}

fun refresh() {
blockchain.refresh()
transactionSyncManager.sync()
Expand Down
2 changes: 2 additions & 0 deletions ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/core/Interfaces.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,8 @@ interface IBlockchain {
fun start()
fun refresh()
fun stop()
fun pause()
fun resume()
fun syncAccountState()

val syncState: EthereumKit.SyncState
Expand Down
22 changes: 20 additions & 2 deletions ethereumkit/src/main/java/io/horizontalsystems/ethereumkit/spv/core/SpvBlockchain.kt
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Expand Up @@ -13,7 +13,13 @@ import io.horizontalsystems.ethereumkit.core.IBlockchainListener
import io.horizontalsystems.ethereumkit.core.ISpvStorage
import io.horizontalsystems.ethereumkit.core.TransactionBuilder
import io.horizontalsystems.ethereumkit.crypto.ECKey
import io.horizontalsystems.ethereumkit.models.*
import io.horizontalsystems.ethereumkit.models.Address
import io.horizontalsystems.ethereumkit.models.DefaultBlockParameter
import io.horizontalsystems.ethereumkit.models.GasPrice
import io.horizontalsystems.ethereumkit.models.RawTransaction
import io.horizontalsystems.ethereumkit.models.Signature
import io.horizontalsystems.ethereumkit.models.Transaction
import io.horizontalsystems.ethereumkit.models.TransactionLog
import io.horizontalsystems.ethereumkit.network.INetwork
import io.horizontalsystems.ethereumkit.spv.helpers.RandomHelper
import io.horizontalsystems.ethereumkit.spv.models.AccountStateSpv
Expand All @@ -22,7 +28,11 @@ import io.horizontalsystems.ethereumkit.spv.net.BlockHelper
import io.horizontalsystems.ethereumkit.spv.net.BlockValidator
import io.horizontalsystems.ethereumkit.spv.net.PeerGroup
import io.horizontalsystems.ethereumkit.spv.net.PeerProvider
import io.horizontalsystems.ethereumkit.spv.net.handlers.*
import io.horizontalsystems.ethereumkit.spv.net.handlers.AccountStateTaskHandler
import io.horizontalsystems.ethereumkit.spv.net.handlers.AnnouncedBlockHandler
import io.horizontalsystems.ethereumkit.spv.net.handlers.BlockHeadersTaskHandler
import io.horizontalsystems.ethereumkit.spv.net.handlers.HandshakeTaskHandler
import io.horizontalsystems.ethereumkit.spv.net.handlers.SendTransactionTaskHandler
import io.horizontalsystems.ethereumkit.spv.net.tasks.HandshakeTask
import io.reactivex.Single
import io.reactivex.subjects.PublishSubject
Expand Down Expand Up @@ -61,6 +71,14 @@ class SpvBlockchain(
TODO("not implemented")
}

override fun pause() {
TODO("Not yet implemented")
}

override fun resume() {
TODO("Not yet implemented")
}

override fun refresh() {
TODO("not implemented")
}
Expand Down