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32e8e539ac
* Apply ResolveVirtual diffs to the UTXO index * Add comments Co-authored-by: Ori Newman <>
126 lines
5.1 KiB
Go
126 lines
5.1 KiB
Go
package flowcontext
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import (
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"sync"
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"time"
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"github.com/kaspanet/kaspad/util/mstime"
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"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
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"github.com/kaspanet/kaspad/domain"
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"github.com/kaspanet/kaspad/app/protocol/flows/blockrelay"
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"github.com/kaspanet/kaspad/app/protocol/flows/transactionrelay"
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peerpkg "github.com/kaspanet/kaspad/app/protocol/peer"
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"github.com/kaspanet/kaspad/infrastructure/config"
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"github.com/kaspanet/kaspad/infrastructure/network/addressmanager"
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"github.com/kaspanet/kaspad/infrastructure/network/connmanager"
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"github.com/kaspanet/kaspad/infrastructure/network/netadapter"
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"github.com/kaspanet/kaspad/infrastructure/network/netadapter/id"
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)
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// OnBlockAddedToDAGHandler is a handler function that's triggered
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// when a block is added to the DAG
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type OnBlockAddedToDAGHandler func(block *externalapi.DomainBlock, virtualChangeSet *externalapi.VirtualChangeSet) error
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// OnVirtualChangeHandler is a handler function that's triggered when the virtual changes
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type OnVirtualChangeHandler func(virtualChangeSet *externalapi.VirtualChangeSet) error
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// OnPruningPointUTXOSetOverrideHandler is a handle function that's triggered whenever the UTXO set
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// resets due to pruning point change via IBD.
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type OnPruningPointUTXOSetOverrideHandler func() error
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// OnTransactionAddedToMempoolHandler is a handler function that's triggered
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// when a transaction is added to the mempool
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type OnTransactionAddedToMempoolHandler func()
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// FlowContext holds state that is relevant to more than one flow or one peer, and allows communication between
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// different flows that can be associated to different peers.
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type FlowContext struct {
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cfg *config.Config
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netAdapter *netadapter.NetAdapter
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domain domain.Domain
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addressManager *addressmanager.AddressManager
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connectionManager *connmanager.ConnectionManager
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timeStarted int64
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onVirtualChangeHandler OnVirtualChangeHandler
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onBlockAddedToDAGHandler OnBlockAddedToDAGHandler
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onPruningPointUTXOSetOverrideHandler OnPruningPointUTXOSetOverrideHandler
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onTransactionAddedToMempoolHandler OnTransactionAddedToMempoolHandler
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lastRebroadcastTime time.Time
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sharedRequestedTransactions *transactionrelay.SharedRequestedTransactions
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sharedRequestedBlocks *blockrelay.SharedRequestedBlocks
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ibdPeer *peerpkg.Peer
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ibdPeerMutex sync.RWMutex
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peers map[id.ID]*peerpkg.Peer
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peersMutex sync.RWMutex
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orphans map[externalapi.DomainHash]*externalapi.DomainBlock
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orphansMutex sync.RWMutex
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transactionIDsToPropagate []*externalapi.DomainTransactionID
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lastTransactionIDPropagationTime time.Time
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transactionIDPropagationLock sync.Mutex
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shutdownChan chan struct{}
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}
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// New returns a new instance of FlowContext.
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func New(cfg *config.Config, domain domain.Domain, addressManager *addressmanager.AddressManager,
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netAdapter *netadapter.NetAdapter, connectionManager *connmanager.ConnectionManager) *FlowContext {
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return &FlowContext{
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cfg: cfg,
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netAdapter: netAdapter,
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domain: domain,
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addressManager: addressManager,
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connectionManager: connectionManager,
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sharedRequestedTransactions: transactionrelay.NewSharedRequestedTransactions(),
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sharedRequestedBlocks: blockrelay.NewSharedRequestedBlocks(),
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peers: make(map[id.ID]*peerpkg.Peer),
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orphans: make(map[externalapi.DomainHash]*externalapi.DomainBlock),
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timeStarted: mstime.Now().UnixMilliseconds(),
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transactionIDsToPropagate: []*externalapi.DomainTransactionID{},
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lastTransactionIDPropagationTime: time.Now(),
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shutdownChan: make(chan struct{}),
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}
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}
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// Close signals to all flows the the protocol manager is closed.
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func (f *FlowContext) Close() {
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close(f.shutdownChan)
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}
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// ShutdownChan is a chan where flows can subscribe to shutdown
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// event.
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func (f *FlowContext) ShutdownChan() <-chan struct{} {
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return f.shutdownChan
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}
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// SetOnVirtualChangeHandler sets the onVirtualChangeHandler handler
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func (f *FlowContext) SetOnVirtualChangeHandler(onVirtualChangeHandler OnVirtualChangeHandler) {
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f.onVirtualChangeHandler = onVirtualChangeHandler
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}
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// SetOnBlockAddedToDAGHandler sets the onBlockAddedToDAG handler
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func (f *FlowContext) SetOnBlockAddedToDAGHandler(onBlockAddedToDAGHandler OnBlockAddedToDAGHandler) {
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f.onBlockAddedToDAGHandler = onBlockAddedToDAGHandler
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}
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// SetOnPruningPointUTXOSetOverrideHandler sets the onPruningPointUTXOSetOverrideHandler handler
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func (f *FlowContext) SetOnPruningPointUTXOSetOverrideHandler(onPruningPointUTXOSetOverrideHandler OnPruningPointUTXOSetOverrideHandler) {
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f.onPruningPointUTXOSetOverrideHandler = onPruningPointUTXOSetOverrideHandler
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}
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// SetOnTransactionAddedToMempoolHandler sets the onTransactionAddedToMempool handler
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func (f *FlowContext) SetOnTransactionAddedToMempoolHandler(onTransactionAddedToMempoolHandler OnTransactionAddedToMempoolHandler) {
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f.onTransactionAddedToMempoolHandler = onTransactionAddedToMempoolHandler
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}
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