tornadocontrib/go-ethereum
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

eth/filters: add global block logs cache (#25459)

Browse Source 
This adds a cache for block logs which is shared by all filters. The cache
size of is configurable using the `--cache.blocklogs` flag.

Co-authored-by: Felix Lange <fjl@twurst.com>
This commit is contained in:
Sina Mahmoodi 2022-08-19 11:14:59 +02:00 committed by GitHub
parent 77308cd6fc
commit 36874b63a1
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
21 changed files with 310 additions and 200 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
accounts/abi/bind/backends/simulated.go
View File

@ -68,7 +68,8 @@ type SimulatedBackend struct {
pendingState *state.StateDB // Currently pending state that will be the active on request
pendingReceipts types.Receipts // Currently receipts for the pending block
events *filters.EventSystem // Event system for filtering log events live
events *filters.EventSystem // for filtering log events live
filterSystem *filters.FilterSystem // for filtering database logs
config *params.ChainConfig
}
@ -86,7 +87,11 @@ func NewSimulatedBackendWithDatabase(database ethdb.Database, alloc core.Genesis
blockchain: blockchain,
config: genesis.Config,
}
backend.events = filters.NewEventSystem(&filterBackend{database, blockchain, backend}, false)
filterBackend := &filterBackend{database, blockchain, backend}
backend.filterSystem = filters.NewFilterSystem(filterBackend, filters.Config{})
backend.events = filters.NewEventSystem(backend.filterSystem, false)
backend.rollback(blockchain.CurrentBlock())
return backend
}
@ -689,7 +694,7 @@ func (b *SimulatedBackend) FilterLogs(ctx context.Context, query ethereum.Filter
var filter *filters.Filter
if query.BlockHash != nil {
// Block filter requested, construct a single-shot filter
filter = filters.NewBlockFilter(&filterBackend{b.database, b.blockchain, b}, *query.BlockHash, query.Addresses, query.Topics)
filter = b.filterSystem.NewBlockFilter(*query.BlockHash, query.Addresses, query.Topics)
} else {
// Initialize unset filter boundaries to run from genesis to chain head
from := int64(0)
@ -701,7 +706,7 @@ func (b *SimulatedBackend) FilterLogs(ctx context.Context, query ethereum.Filter
to = query.ToBlock.Int64()
}
// Construct the range filter
filter = filters.NewRangeFilter(&filterBackend{b.database, b.blockchain, b}, from, to, query.Addresses, query.Topics)
filter = b.filterSystem.NewRangeFilter(from, to, query.Addresses, query.Topics)
}
// Run the filter and return all the logs
logs, err := filter.Logs(ctx)
@ -828,6 +833,7 @@ type filterBackend struct {
}
func (fb *filterBackend) ChainDb() ethdb.Database { return fb.db }
func (fb *filterBackend) EventMux() *event.TypeMux { panic("not supported") }
func (fb *filterBackend) HeaderByNumber(ctx context.Context, block rpc.BlockNumber) (*types.Header, error) {
@ -853,19 +859,8 @@ func (fb *filterBackend) GetReceipts(ctx context.Context, hash common.Hash) (typ
return rawdb.ReadReceipts(fb.db, hash, *number, fb.bc.Config()), nil
}
func (fb *filterBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*types.Log, error) {
number := rawdb.ReadHeaderNumber(fb.db, hash)
if number == nil {
return nil, nil
}
receipts := rawdb.ReadReceipts(fb.db, hash, *number, fb.bc.Config())
if receipts == nil {
return nil, nil
}
logs := make([][]*types.Log, len(receipts))
for i, receipt := range receipts {
logs[i] = receipt.Logs
}
func (fb *filterBackend) GetLogs(ctx context.Context, hash common.Hash, number uint64) ([][]*types.Log, error) {
logs := rawdb.ReadLogs(fb.db, hash, number, fb.bc.Config())
return logs, nil
}

11
cmd/geth/config.go
View File

@ -163,7 +163,9 @@ func makeFullNode(ctx *cli.Context) (*node.Node, ethapi.Backend) {
override := ctx.Bool(utils.OverrideTerminalTotalDifficultyPassed.Name)
cfg.Eth.OverrideTerminalTotalDifficultyPassed = &override
}
backend, eth := utils.RegisterEthService(stack, &cfg.Eth)
// Warn users to migrate if they have a legacy freezer format.
if eth != nil && !ctx.IsSet(utils.IgnoreLegacyReceiptsFlag.Name) {
firstIdx := uint64(0)
@ -181,10 +183,15 @@ func makeFullNode(ctx *cli.Context) (*node.Node, ethapi.Backend) {
utils.Fatalf("Database has receipts with a legacy format. Please run `geth db freezer-migrate`.")
}
}
// Configure GraphQL if requested
// Configure log filter RPC API.
filterSystem := utils.RegisterFilterAPI(stack, backend, &cfg.Eth)
// Configure GraphQL if requested.
if ctx.IsSet(utils.GraphQLEnabledFlag.Name) {
utils.RegisterGraphQLService(stack, backend, cfg.Node)
utils.RegisterGraphQLService(stack, backend, filterSystem, &cfg.Node)
}
// Add the Ethereum Stats daemon if requested.
if cfg.Ethstats.URL != "" {
utils.RegisterEthStatsService(stack, backend, cfg.Ethstats.URL)

1
cmd/geth/main.go
View File

@ -117,6 +117,7 @@ var (
utils.CacheSnapshotFlag,
utils.CacheNoPrefetchFlag,
utils.CachePreimagesFlag,
utils.CacheLogSizeFlag,
utils.FDLimitFlag,
utils.ListenPortFlag,
utils.DiscoveryPortFlag,

34
cmd/utils/flags.go
View File

@ -43,6 +43,7 @@ import (
ethcatalyst "github.com/ethereum/go-ethereum/eth/catalyst"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/eth/ethconfig"
"github.com/ethereum/go-ethereum/eth/filters"
"github.com/ethereum/go-ethereum/eth/gasprice"
"github.com/ethereum/go-ethereum/eth/tracers"
"github.com/ethereum/go-ethereum/ethdb"
@ -64,6 +65,7 @@ import (
"github.com/ethereum/go-ethereum/p2p/nat"
"github.com/ethereum/go-ethereum/p2p/netutil"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
pcsclite "github.com/gballet/go-libpcsclite"
gopsutil "github.com/shirou/gopsutil/mem"
"github.com/urfave/cli/v2"
@ -491,6 +493,12 @@ var (
Usage: "Enable recording the SHA3/keccak preimages of trie keys",
Category: flags.PerfCategory,
}
CacheLogSizeFlag = &cli.IntFlag{
Name: "cache.blocklogs",
Usage: "Size (in number of blocks) of the log cache for filtering",
Category: flags.PerfCategory,
Value: ethconfig.Defaults.FilterLogCacheSize,
}
FDLimitFlag = &cli.IntFlag{
Name: "fdlimit",
Usage: "Raise the open file descriptor resource limit (default = system fd limit)",
@ -1808,6 +1816,9 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
if ctx.IsSet(CacheFlag.Name) || ctx.IsSet(CacheSnapshotFlag.Name) {
cfg.SnapshotCache = ctx.Int(CacheFlag.Name) * ctx.Int(CacheSnapshotFlag.Name) / 100
}
if ctx.IsSet(CacheLogSizeFlag.Name) {
cfg.FilterLogCacheSize = ctx.Int(CacheLogSizeFlag.Name)
}
if !ctx.Bool(SnapshotFlag.Name) {
// If snap-sync is requested, this flag is also required
if cfg.SyncMode == downloader.SnapSync {
@ -2005,21 +2016,34 @@ func RegisterEthService(stack *node.Node, cfg *ethconfig.Config) (ethapi.Backend
return backend.APIBackend, backend
}
// RegisterEthStatsService configures the Ethereum Stats daemon and adds it to
// the given node.
// RegisterEthStatsService configures the Ethereum Stats daemon and adds it to the node.
func RegisterEthStatsService(stack *node.Node, backend ethapi.Backend, url string) {
if err := ethstats.New(stack, backend, backend.Engine(), url); err != nil {
Fatalf("Failed to register the Ethereum Stats service: %v", err)
}
}
// RegisterGraphQLService is a utility function to construct a new service and register it against a node.
func RegisterGraphQLService(stack *node.Node, backend ethapi.Backend, cfg node.Config) {
if err := graphql.New(stack, backend, cfg.GraphQLCors, cfg.GraphQLVirtualHosts); err != nil {
// RegisterGraphQLService adds the GraphQL API to the node.
func RegisterGraphQLService(stack *node.Node, backend ethapi.Backend, filterSystem *filters.FilterSystem, cfg *node.Config) {
err := graphql.New(stack, backend, filterSystem, cfg.GraphQLCors, cfg.GraphQLVirtualHosts)
if err != nil {
Fatalf("Failed to register the GraphQL service: %v", err)
}
}
// RegisterFilterAPI adds the eth log filtering RPC API to the node.
func RegisterFilterAPI(stack *node.Node, backend ethapi.Backend, ethcfg *ethconfig.Config) *filters.FilterSystem {
isLightClient := ethcfg.SyncMode == downloader.LightSync
filterSystem := filters.NewFilterSystem(backend, filters.Config{
LogCacheSize: ethcfg.FilterLogCacheSize,
})
stack.RegisterAPIs([]rpc.API{{
Namespace: "eth",
Service: filters.NewFilterAPI(filterSystem, isLightClient),
}})
return filterSystem
}
func SetupMetrics(ctx *cli.Context) {
if metrics.Enabled {
log.Info("Enabling metrics collection")

14
eth/api_backend.go
View File

@ -19,7 +19,6 @@ package eth
import (
"context"
"errors"
"fmt"
"math/big"
"time"
@ -202,17 +201,8 @@ func (b *EthAPIBackend) GetReceipts(ctx context.Context, hash common.Hash) (type
return b.eth.blockchain.GetReceiptsByHash(hash), nil
}
func (b *EthAPIBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*types.Log, error) {
db := b.eth.ChainDb()
number := rawdb.ReadHeaderNumber(db, hash)
if number == nil {
return nil, fmt.Errorf("failed to get block number for hash %#x", hash)
}
logs := rawdb.ReadLogs(db, hash, *number, b.eth.blockchain.Config())
if logs == nil {
return nil, fmt.Errorf("failed to get logs for block #%d (0x%s)", *number, hash.TerminalString())
}
return logs, nil
func (b *EthAPIBackend) GetLogs(ctx context.Context, hash common.Hash, number uint64) ([][]*types.Log, error) {
return rawdb.ReadLogs(b.eth.chainDb, hash, number, b.ChainConfig()), nil
}
func (b *EthAPIBackend) GetTd(ctx context.Context, hash common.Hash) *big.Int {

5
eth/backend.go
View File

@ -25,7 +25,6 @@ import (
"strings"
"sync"
"sync/atomic"
"time"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
@ -41,7 +40,6 @@ import (
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/eth/ethconfig"
"github.com/ethereum/go-ethereum/eth/filters"
"github.com/ethereum/go-ethereum/eth/gasprice"
"github.com/ethereum/go-ethereum/eth/protocols/eth"
"github.com/ethereum/go-ethereum/eth/protocols/snap"
@ -315,9 +313,6 @@ func (s *Ethereum) APIs() []rpc.API {
}, {
Namespace: "eth",
Service: downloader.NewDownloaderAPI(s.handler.downloader, s.eventMux),
}, {
Namespace: "eth",
Service: filters.NewFilterAPI(s.APIBackend, false, 5*time.Minute),
}, {
Namespace: "admin",
Service: NewAdminAPI(s),

4
eth/ethconfig/config.go
View File

@ -83,6 +83,7 @@ var Defaults = Config{
TrieDirtyCache: 256,
TrieTimeout: 60 * time.Minute,
SnapshotCache: 102,
FilterLogCacheSize: 32,
Miner: miner.Config{
GasCeil: 30000000,
GasPrice: big.NewInt(params.GWei),
@ -171,6 +172,9 @@ type Config struct {
SnapshotCache int
Preimages bool
// This is the number of blocks for which logs will be cached in the filter system.
FilterLogCacheSize int
// Mining options
Miner miner.Config

6
eth/ethconfig/gen_config.go
View File

@ -48,6 +48,7 @@ func (c Config) MarshalTOML() (interface{}, error) {
TrieTimeout time.Duration
SnapshotCache int
Preimages bool
FilterLogCacheSize int
Miner miner.Config
Ethash ethash.Config
TxPool core.TxPoolConfig
@ -93,6 +94,7 @@ func (c Config) MarshalTOML() (interface{}, error) {
enc.TrieTimeout = c.TrieTimeout
enc.SnapshotCache = c.SnapshotCache
enc.Preimages = c.Preimages
enc.FilterLogCacheSize = c.FilterLogCacheSize
enc.Miner = c.Miner
enc.Ethash = c.Ethash
enc.TxPool = c.TxPool
@ -142,6 +144,7 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
TrieTimeout *time.Duration
SnapshotCache *int
Preimages *bool
FilterLogCacheSize *int
Miner *miner.Config
Ethash *ethash.Config
TxPool *core.TxPoolConfig
@ -250,6 +253,9 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
if dec.Preimages != nil {
c.Preimages = *dec.Preimages
}
if dec.FilterLogCacheSize != nil {
c.FilterLogCacheSize = *dec.FilterLogCacheSize
}
if dec.Miner != nil {
c.Miner = *dec.Miner
}

20
eth/filters/api.go
View File

@ -46,7 +46,7 @@ type filter struct {
// FilterAPI offers support to create and manage filters. This will allow external clients to retrieve various
// information related to the Ethereum protocol such als blocks, transactions and logs.
type FilterAPI struct {
backend Backend
sys *FilterSystem
events *EventSystem
filtersMu sync.Mutex
filters map[rpc.ID]*filter
@ -54,14 +54,14 @@ type FilterAPI struct {
}
// NewFilterAPI returns a new FilterAPI instance.
func NewFilterAPI(backend Backend, lightMode bool, timeout time.Duration) *FilterAPI {
func NewFilterAPI(system *FilterSystem, lightMode bool) *FilterAPI {
api := &FilterAPI{
backend: backend,
events: NewEventSystem(backend, lightMode),
sys: system,
events: NewEventSystem(system, lightMode),
filters: make(map[rpc.ID]*filter),
timeout: timeout,
timeout: system.cfg.Timeout,
}
go api.timeoutLoop(timeout)
go api.timeoutLoop(system.cfg.Timeout)
return api
}
@ -320,7 +320,7 @@ func (api *FilterAPI) GetLogs(ctx context.Context, crit FilterCriteria) ([]*type
var filter *Filter
if crit.BlockHash != nil {
// Block filter requested, construct a single-shot filter
filter = NewBlockFilter(api.backend, *crit.BlockHash, crit.Addresses, crit.Topics)
filter = api.sys.NewBlockFilter(*crit.BlockHash, crit.Addresses, crit.Topics)
} else {
// Convert the RPC block numbers into internal representations
begin := rpc.LatestBlockNumber.Int64()
@ -332,7 +332,7 @@ func (api *FilterAPI) GetLogs(ctx context.Context, crit FilterCriteria) ([]*type
end = crit.ToBlock.Int64()
}
// Construct the range filter
filter = NewRangeFilter(api.backend, begin, end, crit.Addresses, crit.Topics)
filter = api.sys.NewRangeFilter(begin, end, crit.Addresses, crit.Topics)
}
// Run the filter and return all the logs
logs, err := filter.Logs(ctx)
@ -371,7 +371,7 @@ func (api *FilterAPI) GetFilterLogs(ctx context.Context, id rpc.ID) ([]*types.Lo
var filter *Filter
if f.crit.BlockHash != nil {
// Block filter requested, construct a single-shot filter
filter = NewBlockFilter(api.backend, *f.crit.BlockHash, f.crit.Addresses, f.crit.Topics)
filter = api.sys.NewBlockFilter(*f.crit.BlockHash, f.crit.Addresses, f.crit.Topics)
} else {
// Convert the RPC block numbers into internal representations
begin := rpc.LatestBlockNumber.Int64()
@ -383,7 +383,7 @@ func (api *FilterAPI) GetFilterLogs(ctx context.Context, id rpc.ID) ([]*types.Lo
end = f.crit.ToBlock.Int64()
}
// Construct the range filter
filter = NewRangeFilter(api.backend, begin, end, f.crit.Addresses, f.crit.Topics)
filter = api.sys.NewRangeFilter(begin, end, f.crit.Addresses, f.crit.Topics)
}
// Run the filter and return all the logs
logs, err := filter.Logs(ctx)

16
eth/filters/bench_test.go
View File

@ -122,22 +122,27 @@ func benchmarkBloomBits(b *testing.B, sectionSize uint64) {
b.Log("Running filter benchmarks...")
start = time.Now()
var backend *testBackend
var (
backend *testBackend
sys *FilterSystem
)
for i := 0; i < benchFilterCnt; i++ {
if i%20 == 0 {
db.Close()
db, _ = rawdb.NewLevelDBDatabase(benchDataDir, 128, 1024, "", false)
backend = &testBackend{db: db, sections: cnt}
sys = NewFilterSystem(backend, Config{})
}
var addr common.Address
addr[0] = byte(i)
addr[1] = byte(i / 256)
filter := NewRangeFilter(backend, 0, int64(cnt*sectionSize-1), []common.Address{addr}, nil)
filter := sys.NewRangeFilter(0, int64(cnt*sectionSize-1), []common.Address{addr}, nil)
if _, err := filter.Logs(context.Background()); err != nil {
b.Error("filter.Find error:", err)
b.Error("filter.Logs error:", err)
}
}
d = time.Since(start)
b.Log("Finished running filter benchmarks")
b.Log(" ", d, "total ", d/time.Duration(benchFilterCnt), "per address", d*time.Duration(1000000)/time.Duration(benchFilterCnt*cnt*sectionSize), "per million blocks")
@ -171,10 +176,11 @@ func BenchmarkNoBloomBits(b *testing.B) {
clearBloomBits(db)
_, sys := newTestFilterSystem(b, db, Config{})
b.Log("Running filter benchmarks...")
start := time.Now()
backend := &testBackend{db: db}
filter := NewRangeFilter(backend, 0, int64(*headNum), []common.Address{{}}, nil)
filter := sys.NewRangeFilter(0, int64(*headNum), []common.Address{{}}, nil)
filter.Logs(context.Background())
d := time.Since(start)
b.Log("Finished running filter benchmarks")

97
eth/filters/filter.go
View File

@ -22,37 +22,15 @@ import (
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/bloombits"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/rpc"
)
type Backend interface {
ChainDb() ethdb.Database
HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error)
HeaderByHash(ctx context.Context, blockHash common.Hash) (*types.Header, error)
GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error)
GetLogs(ctx context.Context, blockHash common.Hash) ([][]*types.Log, error)
PendingBlockAndReceipts() (*types.Block, types.Receipts)
SubscribeNewTxsEvent(chan<- core.NewTxsEvent) event.Subscription
SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription
SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription
SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription
SubscribePendingLogsEvent(ch chan<- []*types.Log) event.Subscription
BloomStatus() (uint64, uint64)
ServiceFilter(ctx context.Context, session *bloombits.MatcherSession)
}
// Filter can be used to retrieve and filter logs.
type Filter struct {
backend Backend
sys *FilterSystem
db ethdb.Database
addresses []common.Address
topics [][]common.Hash
@ -64,7 +42,7 @@ type Filter struct {
// NewRangeFilter creates a new filter which uses a bloom filter on blocks to
// figure out whether a particular block is interesting or not.
func NewRangeFilter(backend Backend, begin, end int64, addresses []common.Address, topics [][]common.Hash) *Filter {
func (sys *FilterSystem) NewRangeFilter(begin, end int64, addresses []common.Address, topics [][]common.Hash) *Filter {
// Flatten the address and topic filter clauses into a single bloombits filter
// system. Since the bloombits are not positional, nil topics are permitted,
// which get flattened into a nil byte slice.
@ -83,10 +61,10 @@ func NewRangeFilter(backend Backend, begin, end int64, addresses []common.Addres
}
filters = append(filters, filter)
}
size, _ := backend.BloomStatus()
size, _ := sys.backend.BloomStatus()
// Create a generic filter and convert it into a range filter
filter := newFilter(backend, addresses, topics)
filter := newFilter(sys, addresses, topics)
filter.matcher = bloombits.NewMatcher(size, filters)
filter.begin = begin
@ -97,21 +75,20 @@ func NewRangeFilter(backend Backend, begin, end int64, addresses []common.Addres
// NewBlockFilter creates a new filter which directly inspects the contents of
// a block to figure out whether it is interesting or not.
func NewBlockFilter(backend Backend, block common.Hash, addresses []common.Address, topics [][]common.Hash) *Filter {
func (sys *FilterSystem) NewBlockFilter(block common.Hash, addresses []common.Address, topics [][]common.Hash) *Filter {
// Create a generic filter and convert it into a block filter
filter := newFilter(backend, addresses, topics)
filter := newFilter(sys, addresses, topics)
filter.block = block
return filter
}
// newFilter creates a generic filter that can either filter based on a block hash,
// or based on range queries. The search criteria needs to be explicitly set.
func newFilter(backend Backend, addresses []common.Address, topics [][]common.Hash) *Filter {
func newFilter(sys *FilterSystem, addresses []common.Address, topics [][]common.Hash) *Filter {
return &Filter{
backend: backend,
sys: sys,
addresses: addresses,
topics: topics,
db: backend.ChainDb(),
}
}
@ -120,14 +97,14 @@ func newFilter(backend Backend, addresses []common.Address, topics [][]common.Ha
func (f *Filter) Logs(ctx context.Context) ([]*types.Log, error) {
// If we're doing singleton block filtering, execute and return
if f.block != (common.Hash{}) {
header, err := f.backend.HeaderByHash(ctx, f.block)
header, err := f.sys.backend.HeaderByHash(ctx, f.block)
if err != nil {
return nil, err
}
if header == nil {
return nil, errors.New("unknown block")
}
return f.blockLogs(ctx, header)
return f.blockLogs(ctx, header, false)
}
// Short-cut if all we care about is pending logs
if f.begin == rpc.PendingBlockNumber.Int64() {
@ -137,7 +114,7 @@ func (f *Filter) Logs(ctx context.Context) ([]*types.Log, error) {
return f.pendingLogs()
}
// Figure out the limits of the filter range
header, _ := f.backend.HeaderByNumber(ctx, rpc.LatestBlockNumber)
header, _ := f.sys.backend.HeaderByNumber(ctx, rpc.LatestBlockNumber)
if header == nil {
return nil, nil
}
@ -156,7 +133,7 @@ func (f *Filter) Logs(ctx context.Context) ([]*types.Log, error) {
var (
logs []*types.Log
err error
size, sections = f.backend.BloomStatus()
size, sections = f.sys.backend.BloomStatus()
)
if indexed := sections * size; indexed > uint64(f.begin) {
if indexed > end {
@ -192,7 +169,7 @@ func (f *Filter) indexedLogs(ctx context.Context, end uint64) ([]*types.Log, err
}
defer session.Close()
f.backend.ServiceFilter(ctx, session)
f.sys.backend.ServiceFilter(ctx, session)
// Iterate over the matches until exhausted or context closed
var logs []*types.Log
@ -211,11 +188,11 @@ func (f *Filter) indexedLogs(ctx context.Context, end uint64) ([]*types.Log, err
f.begin = int64(number) + 1
// Retrieve the suggested block and pull any truly matching logs
header, err := f.backend.HeaderByNumber(ctx, rpc.BlockNumber(number))
header, err := f.sys.backend.HeaderByNumber(ctx, rpc.BlockNumber(number))
if header == nil || err != nil {
return logs, err
}
found, err := f.checkMatches(ctx, header)
found, err := f.blockLogs(ctx, header, true)
if err != nil {
return logs, err
}
@ -233,11 +210,11 @@ func (f *Filter) unindexedLogs(ctx context.Context, end uint64) ([]*types.Log, e
var logs []*types.Log
for ; f.begin <= int64(end); f.begin++ {
header, err := f.backend.HeaderByNumber(ctx, rpc.BlockNumber(f.begin))
header, err := f.sys.backend.HeaderByNumber(ctx, rpc.BlockNumber(f.begin))
if header == nil || err != nil {
return logs, err
}
found, err := f.blockLogs(ctx, header)
found, err := f.blockLogs(ctx, header, false)
if err != nil {
return logs, err
}
@ -247,34 +224,34 @@ func (f *Filter) unindexedLogs(ctx context.Context, end uint64) ([]*types.Log, e
}
// blockLogs returns the logs matching the filter criteria within a single block.
func (f *Filter) blockLogs(ctx context.Context, header *types.Header) (logs []*types.Log, err error) {
if bloomFilter(header.Bloom, f.addresses, f.topics) {
found, err := f.checkMatches(ctx, header)
func (f *Filter) blockLogs(ctx context.Context, header *types.Header, skipBloom bool) ([]*types.Log, error) {
// Fast track: no filtering criteria
if len(f.addresses) == 0 && len(f.topics) == 0 {
list, err := f.sys.cachedGetLogs(ctx, header.Hash(), header.Number.Uint64())
if err != nil {
return logs, err
return nil, err
}
logs = append(logs, found...)
return flatten(list), nil
} else if skipBloom || bloomFilter(header.Bloom, f.addresses, f.topics) {
return f.checkMatches(ctx, header)
}
return logs, nil
return nil, nil
}
// checkMatches checks if the receipts belonging to the given header contain any log events that
// match the filter criteria. This function is called when the bloom filter signals a potential match.
func (f *Filter) checkMatches(ctx context.Context, header *types.Header) (logs []*types.Log, err error) {
// Get the logs of the block
logsList, err := f.backend.GetLogs(ctx, header.Hash())
func (f *Filter) checkMatches(ctx context.Context, header *types.Header) ([]*types.Log, error) {
logsList, err := f.sys.cachedGetLogs(ctx, header.Hash(), header.Number.Uint64())
if err != nil {
return nil, err
}
var unfiltered []*types.Log
for _, logs := range logsList {
unfiltered = append(unfiltered, logs...)
}
logs = filterLogs(unfiltered, nil, nil, f.addresses, f.topics)
unfiltered := flatten(logsList)
logs := filterLogs(unfiltered, nil, nil, f.addresses, f.topics)
if len(logs) > 0 {
// We have matching logs, check if we need to resolve full logs via the light client
if logs[0].TxHash == (common.Hash{}) {
receipts, err := f.backend.GetReceipts(ctx, header.Hash())
receipts, err := f.sys.backend.GetReceipts(ctx, header.Hash())
if err != nil {
return nil, err
}
@ -291,7 +268,7 @@ func (f *Filter) checkMatches(ctx context.Context, header *types.Header) (logs [
// pendingLogs returns the logs matching the filter criteria within the pending block.
func (f *Filter) pendingLogs() ([]*types.Log, error) {
block, receipts := f.backend.PendingBlockAndReceipts()
block, receipts := f.sys.backend.PendingBlockAndReceipts()
if bloomFilter(block.Bloom(), f.addresses, f.topics) {
var unfiltered []*types.Log
for _, r := range receipts {
@ -376,3 +353,11 @@ func bloomFilter(bloom types.Bloom, addresses []common.Address, topics [][]commo
}
return true
}
func flatten(list [][]*types.Log) []*types.Log {
var flat []*types.Log
for _, logs := range list {
flat = append(flat, logs...)
}
return flat
}

85
eth/filters/filter_system.go
View File

@ -27,13 +27,90 @@ import (
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/bloombits"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/rpc"
lru "github.com/hashicorp/golang-lru"
)
// Config represents the configuration of the filter system.
type Config struct {
LogCacheSize int // maximum number of cached blocks (default: 32)
Timeout time.Duration // how long filters stay active (default: 5min)
}
func (cfg Config) withDefaults() Config {
if cfg.Timeout == 0 {
cfg.Timeout = 5 * time.Minute
}
if cfg.LogCacheSize == 0 {
cfg.LogCacheSize = 32
}
return cfg
}
type Backend interface {
ChainDb() ethdb.Database
HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error)
HeaderByHash(ctx context.Context, blockHash common.Hash) (*types.Header, error)
GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error)
GetLogs(ctx context.Context, blockHash common.Hash, number uint64) ([][]*types.Log, error)
PendingBlockAndReceipts() (*types.Block, types.Receipts)
SubscribeNewTxsEvent(chan<- core.NewTxsEvent) event.Subscription
SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription
SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription
SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription
SubscribePendingLogsEvent(ch chan<- []*types.Log) event.Subscription
BloomStatus() (uint64, uint64)
ServiceFilter(ctx context.Context, session *bloombits.MatcherSession)
}
// FilterSystem holds resources shared by all filters.
type FilterSystem struct {
backend Backend
logsCache *lru.Cache
cfg *Config
}
// NewFilterSystem creates a filter system.
func NewFilterSystem(backend Backend, config Config) *FilterSystem {
config = config.withDefaults()
cache, err := lru.New(config.LogCacheSize)
if err != nil {
panic(err)
}
return &FilterSystem{
backend: backend,
logsCache: cache,
cfg: &config,
}
}
// cachedGetLogs loads block logs from the backend and caches the result.
func (sys *FilterSystem) cachedGetLogs(ctx context.Context, blockHash common.Hash, number uint64) ([][]*types.Log, error) {
cached, ok := sys.logsCache.Get(blockHash)
if ok {
return cached.([][]*types.Log), nil
}
logs, err := sys.backend.GetLogs(ctx, blockHash, number)
if err != nil {
return nil, err
}
if logs == nil {
return nil, fmt.Errorf("failed to get logs for block #%d (0x%s)", number, blockHash.TerminalString())
}
sys.logsCache.Add(blockHash, logs)
return logs, nil
}
// Type determines the kind of filter and is used to put the filter in to
// the correct bucket when added.
type Type byte
@ -84,6 +161,7 @@ type subscription struct {
// subscription which match the subscription criteria.
type EventSystem struct {
backend Backend
sys *FilterSystem
lightMode bool
lastHead *types.Header
@ -110,9 +188,10 @@ type EventSystem struct {
//
// The returned manager has a loop that needs to be stopped with the Stop function
// or by stopping the given mux.
func NewEventSystem(backend Backend, lightMode bool) *EventSystem {
func NewEventSystem(sys *FilterSystem, lightMode bool) *EventSystem {
m := &EventSystem{
backend: backend,
sys: sys,
backend: sys.backend,
lightMode: lightMode,
install: make(chan *subscription),
uninstall: make(chan *subscription),
@ -405,7 +484,7 @@ func (es *EventSystem) lightFilterLogs(header *types.Header, addresses []common.
// Get the logs of the block
ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
defer cancel()
logsList, err := es.backend.GetLogs(ctx, header.Hash())
logsList, err := es.sys.cachedGetLogs(ctx, header.Hash(), header.Number.Uint64())
if err != nil {
return nil
}

55
eth/filters/filter_system_test.go
View File

@ -39,10 +39,6 @@ import (
"github.com/ethereum/go-ethereum/rpc"
)
var (
deadline = 5 * time.Minute
)
type testBackend struct {
db ethdb.Database
sections uint64
@ -91,17 +87,8 @@ func (b *testBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.
return nil, nil
}
func (b *testBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*types.Log, error) {
number := rawdb.ReadHeaderNumber(b.db, hash)
if number == nil {
return nil, nil
}
receipts := rawdb.ReadReceipts(b.db, hash, *number, params.TestChainConfig)
logs := make([][]*types.Log, len(receipts))
for i, receipt := range receipts {
logs[i] = receipt.Logs
}
func (b *testBackend) GetLogs(ctx context.Context, hash common.Hash, number uint64) ([][]*types.Log, error) {
logs := rawdb.ReadLogs(b.db, hash, number, params.TestChainConfig)
return logs, nil
}
@ -160,6 +147,12 @@ func (b *testBackend) ServiceFilter(ctx context.Context, session *bloombits.Matc
}()
}
func newTestFilterSystem(t testing.TB, db ethdb.Database, cfg Config) (*testBackend, *FilterSystem) {
backend := &testBackend{db: db}
sys := NewFilterSystem(backend, cfg)
return backend, sys
}
// TestBlockSubscription tests if a block subscription returns block hashes for posted chain events.
// It creates multiple subscriptions:
// - one at the start and should receive all posted chain events and a second (blockHashes)
@ -170,8 +163,8 @@ func TestBlockSubscription(t *testing.T) {
var (
db = rawdb.NewMemoryDatabase()
backend = &testBackend{db: db}
api = NewFilterAPI(backend, false, deadline)
backend, sys = newTestFilterSystem(t, db, Config{})
api = NewFilterAPI(sys, false)
genesis = (&core.Genesis{BaseFee: big.NewInt(params.InitialBaseFee)}).MustCommit(db)
chain, _ = core.GenerateChain(params.TestChainConfig, genesis, ethash.NewFaker(), db, 10, func(i int, gen *core.BlockGen) {})
chainEvents = []core.ChainEvent{}
@ -222,8 +215,8 @@ func TestPendingTxFilter(t *testing.T) {
var (
db = rawdb.NewMemoryDatabase()
backend = &testBackend{db: db}
api = NewFilterAPI(backend, false, deadline)
backend, sys = newTestFilterSystem(t, db, Config{})
api = NewFilterAPI(sys, false)
transactions = []*types.Transaction{
types.NewTransaction(0, common.HexToAddress("0xb794f5ea0ba39494ce83a213fffba74279579268"), new(big.Int), 0, new(big.Int), nil),
@ -277,8 +270,8 @@ func TestPendingTxFilter(t *testing.T) {
func TestLogFilterCreation(t *testing.T) {
var (
db = rawdb.NewMemoryDatabase()
backend = &testBackend{db: db}
api = NewFilterAPI(backend, false, deadline)
_, sys = newTestFilterSystem(t, db, Config{})
api = NewFilterAPI(sys, false)
testCases = []struct {
crit FilterCriteria
@ -324,8 +317,8 @@ func TestInvalidLogFilterCreation(t *testing.T) {
var (
db = rawdb.NewMemoryDatabase()
backend = &testBackend{db: db}
api = NewFilterAPI(backend, false, deadline)
_, sys = newTestFilterSystem(t, db, Config{})
api = NewFilterAPI(sys, false)
)
// different situations where log filter creation should fail.
@ -346,8 +339,8 @@ func TestInvalidLogFilterCreation(t *testing.T) {
func TestInvalidGetLogsRequest(t *testing.T) {
var (
db = rawdb.NewMemoryDatabase()
backend = &testBackend{db: db}
api = NewFilterAPI(backend, false, deadline)
_, sys = newTestFilterSystem(t, db, Config{})
api = NewFilterAPI(sys, false)
blockHash = common.HexToHash("0x1111111111111111111111111111111111111111111111111111111111111111")
)
@ -371,8 +364,8 @@ func TestLogFilter(t *testing.T) {
var (
db = rawdb.NewMemoryDatabase()
backend = &testBackend{db: db}
api = NewFilterAPI(backend, false, deadline)
backend, sys = newTestFilterSystem(t, db, Config{})
api = NewFilterAPI(sys, false)
firstAddr = common.HexToAddress("0x1111111111111111111111111111111111111111")
secondAddr = common.HexToAddress("0x2222222222222222222222222222222222222222")
@ -485,8 +478,8 @@ func TestPendingLogsSubscription(t *testing.T) {
var (
db = rawdb.NewMemoryDatabase()
backend = &testBackend{db: db}
api = NewFilterAPI(backend, false, deadline)
backend, sys = newTestFilterSystem(t, db, Config{})
api = NewFilterAPI(sys, false)
firstAddr = common.HexToAddress("0x1111111111111111111111111111111111111111")
secondAddr = common.HexToAddress("0x2222222222222222222222222222222222222222")
@ -669,8 +662,8 @@ func TestPendingTxFilterDeadlock(t *testing.T) {
var (
db = rawdb.NewMemoryDatabase()
backend = &testBackend{db: db}
api = NewFilterAPI(backend, false, timeout)
backend, sys = newTestFilterSystem(t, db, Config{Timeout: timeout})
api = NewFilterAPI(sys, false)
done = make(chan struct{})
)

20
eth/filters/filter_test.go
View File

@ -44,7 +44,7 @@ func BenchmarkFilters(b *testing.B) {
var (
db, _ = rawdb.NewLevelDBDatabase(dir, 0, 0, "", false)
backend = &testBackend{db: db}
_, sys = newTestFilterSystem(b, db, Config{})
key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
addr1 = crypto.PubkeyToAddress(key1.PublicKey)
addr2 = common.BytesToAddress([]byte("jeff"))
@ -89,7 +89,7 @@ func BenchmarkFilters(b *testing.B) {
}
b.ResetTimer()
filter := NewRangeFilter(backend, 0, -1, []common.Address{addr1, addr2, addr3, addr4}, nil)
filter := sys.NewRangeFilter(0, -1, []common.Address{addr1, addr2, addr3, addr4}, nil)
for i := 0; i < b.N; i++ {
logs, _ := filter.Logs(context.Background())
@ -104,7 +104,7 @@ func TestFilters(t *testing.T) {
var (
db, _ = rawdb.NewLevelDBDatabase(dir, 0, 0, "", false)
backend = &testBackend{db: db}
_, sys = newTestFilterSystem(t, db, Config{})
key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
addr = crypto.PubkeyToAddress(key1.PublicKey)
@ -175,14 +175,14 @@ func TestFilters(t *testing.T) {
rawdb.WriteReceipts(db, block.Hash(), block.NumberU64(), receipts[i])
}
filter := NewRangeFilter(backend, 0, -1, []common.Address{addr}, [][]common.Hash{{hash1, hash2, hash3, hash4}})
filter := sys.NewRangeFilter(0, -1, []common.Address{addr}, [][]common.Hash{{hash1, hash2, hash3, hash4}})
logs, _ := filter.Logs(context.Background())
if len(logs) != 4 {
t.Error("expected 4 log, got", len(logs))
}
filter = NewRangeFilter(backend, 900, 999, []common.Address{addr}, [][]common.Hash{{hash3}})
filter = sys.NewRangeFilter(900, 999, []common.Address{addr}, [][]common.Hash{{hash3}})
logs, _ = filter.Logs(context.Background())
if len(logs) != 1 {
t.Error("expected 1 log, got", len(logs))
@ -191,7 +191,7 @@ func TestFilters(t *testing.T) {
t.Errorf("expected log[0].Topics[0] to be %x, got %x", hash3, logs[0].Topics[0])
}
filter = NewRangeFilter(backend, 990, -1, []common.Address{addr}, [][]common.Hash{{hash3}})
filter = sys.NewRangeFilter(990, -1, []common.Address{addr}, [][]common.Hash{{hash3}})
logs, _ = filter.Logs(context.Background())
if len(logs) != 1 {
t.Error("expected 1 log, got", len(logs))
@ -200,7 +200,7 @@ func TestFilters(t *testing.T) {
t.Errorf("expected log[0].Topics[0] to be %x, got %x", hash3, logs[0].Topics[0])
}
filter = NewRangeFilter(backend, 1, 10, nil, [][]common.Hash{{hash1, hash2}})
filter = sys.NewRangeFilter(1, 10, nil, [][]common.Hash{{hash1, hash2}})
logs, _ = filter.Logs(context.Background())
if len(logs) != 2 {
@ -208,7 +208,7 @@ func TestFilters(t *testing.T) {
}
failHash := common.BytesToHash([]byte("fail"))
filter = NewRangeFilter(backend, 0, -1, nil, [][]common.Hash{{failHash}})
filter = sys.NewRangeFilter(0, -1, nil, [][]common.Hash{{failHash}})
logs, _ = filter.Logs(context.Background())
if len(logs) != 0 {
@ -216,14 +216,14 @@ func TestFilters(t *testing.T) {
}
failAddr := common.BytesToAddress([]byte("failmenow"))
filter = NewRangeFilter(backend, 0, -1, []common.Address{failAddr}, nil)
filter = sys.NewRangeFilter(0, -1, []common.Address{failAddr}, nil)
logs, _ = filter.Logs(context.Background())
if len(logs) != 0 {
t.Error("expected 0 log, got", len(logs))
}
filter = NewRangeFilter(backend, 0, -1, nil, [][]common.Hash{{failHash}, {hash1}})
filter = sys.NewRangeFilter(0, -1, nil, [][]common.Hash{{failHash}, {hash1}})
logs, _ = filter.Logs(context.Background())
if len(logs) != 0 {

7
ethclient/gethclient/gethclient_test.go
View File

@ -31,6 +31,7 @@ import (
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/eth/ethconfig"
"github.com/ethereum/go-ethereum/eth/filters"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/params"
@ -60,6 +61,12 @@ func newTestBackend(t *testing.T) (*node.Node, []*types.Block) {
if err != nil {
t.Fatalf("can't create new ethereum service: %v", err)
}
filterSystem := filters.NewFilterSystem(ethservice.APIBackend, filters.Config{})
n.RegisterAPIs([]rpc.API{{
Namespace: "eth",
Service: filters.NewFilterAPI(filterSystem, false),
}})
// Import the test chain.
if err := n.Start(); err != nil {
t.Fatalf("can't start test node: %v", err)

37
graphql/graphql.go
View File

@ -450,12 +450,36 @@ func (t *Transaction) CreatedContract(ctx context.Context, args BlockNumberArgs)
}
func (t *Transaction) Logs(ctx context.Context) (*[]*Log, error) {
receipt, err := t.getReceipt(ctx)
if err != nil || receipt == nil {
if _, err := t.resolve(ctx); err != nil {
return nil, err
}
ret := make([]*Log, 0, len(receipt.Logs))
for _, log := range receipt.Logs {
if t.block == nil {
return nil, nil
}
if _, ok := t.block.numberOrHash.Hash(); !ok {
header, err := t.r.backend.HeaderByNumberOrHash(ctx, *t.block.numberOrHash)
if err != nil {
return nil, err
}
hash := header.Hash()
t.block.numberOrHash.BlockHash = &hash
}
return t.getLogs(ctx)
}
// getLogs returns log objects for the given tx.
// Assumes block hash is resolved.
func (t *Transaction) getLogs(ctx context.Context) (*[]*Log, error) {
var (
hash, _ = t.block.numberOrHash.Hash()
filter = t.r.filterSystem.NewBlockFilter(hash, nil, nil)
logs, err = filter.Logs(ctx)
)
if err != nil {
return nil, err
}
ret := make([]*Log, 0, len(logs))
for _, log := range logs {
ret = append(ret, &Log{
r: t.r,
transaction: t,
@ -978,7 +1002,7 @@ func (b *Block) Logs(ctx context.Context, args struct{ Filter BlockFilterCriteri
hash = header.Hash()
}
// Construct the range filter
filter := filters.NewBlockFilter(b.r.backend, hash, addresses, topics)
filter := b.r.filterSystem.NewBlockFilter(hash, addresses, topics)
// Run the filter and return all the logs
return runFilter(ctx, b.r, filter)
@ -1138,6 +1162,7 @@ func (p *Pending) EstimateGas(ctx context.Context, args struct {
// Resolver is the top-level object in the GraphQL hierarchy.
type Resolver struct {
backend ethapi.Backend
filterSystem *filters.FilterSystem
}
func (r *Resolver) Block(ctx context.Context, args struct {
@ -1284,7 +1309,7 @@ func (r *Resolver) Logs(ctx context.Context, args struct{ Filter FilterCriteria
topics = *args.Filter.Topics
}
// Construct the range filter
filter := filters.NewRangeFilter(r.backend, begin, end, addresses, topics)
filter := r.filterSystem.NewRangeFilter(begin, end, addresses, topics)
return runFilter(ctx, r, filter)
}

9
graphql/graphql_test.go
View File

@ -33,6 +33,7 @@ import (
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/eth/ethconfig"
"github.com/ethereum/go-ethereum/eth/filters"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/params"
@ -50,7 +51,7 @@ func TestBuildSchema(t *testing.T) {
}
defer stack.Close()
// Make sure the schema can be parsed and matched up to the object model.
if err := newHandler(stack, nil, []string{}, []string{}); err != nil {
if err := newHandler(stack, nil, nil, []string{}, []string{}); err != nil {
t.Errorf("Could not construct GraphQL handler: %v", err)
}
}
@ -263,7 +264,8 @@ func createGQLService(t *testing.T, stack *node.Node) {
t.Fatalf("could not create import blocks: %v", err)
}
// create gql service
err = New(stack, ethBackend.APIBackend, []string{}, []string{})
filterSystem := filters.NewFilterSystem(ethBackend.APIBackend, filters.Config{})
err = New(stack, ethBackend.APIBackend, filterSystem, []string{}, []string{})
if err != nil {
t.Fatalf("could not create graphql service: %v", err)
}
@ -348,7 +350,8 @@ func createGQLServiceWithTransactions(t *testing.T, stack *node.Node) {
t.Fatalf("could not create import blocks: %v", err)
}
// create gql service
err = New(stack, ethBackend.APIBackend, []string{}, []string{})
filterSystem := filters.NewFilterSystem(ethBackend.APIBackend, filters.Config{})
err = New(stack, ethBackend.APIBackend, filterSystem, []string{}, []string{})
if err != nil {
t.Fatalf("could not create graphql service: %v", err)
}

9
graphql/service.go
View File

@ -20,6 +20,7 @@ import (
"encoding/json"
"net/http"
"github.com/ethereum/go-ethereum/eth/filters"
"github.com/ethereum/go-ethereum/internal/ethapi"
"github.com/ethereum/go-ethereum/node"
"github.com/graph-gophers/graphql-go"
@ -55,14 +56,14 @@ func (h handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
}
// New constructs a new GraphQL service instance.
func New(stack *node.Node, backend ethapi.Backend, cors, vhosts []string) error {
return newHandler(stack, backend, cors, vhosts)
func New(stack *node.Node, backend ethapi.Backend, filterSystem *filters.FilterSystem, cors, vhosts []string) error {
return newHandler(stack, backend, filterSystem, cors, vhosts)
}
// newHandler returns a new `http.Handler` that will answer GraphQL queries.
// It additionally exports an interactive query browser on the / endpoint.
func newHandler(stack *node.Node, backend ethapi.Backend, cors, vhosts []string) error {
q := Resolver{backend}
func newHandler(stack *node.Node, backend ethapi.Backend, filterSystem *filters.FilterSystem, cors, vhosts []string) error {
q := Resolver{backend, filterSystem}
s, err := graphql.ParseSchema(schema, &q)
if err != nil {

14
internal/ethapi/backend.go
View File

@ -27,10 +27,10 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/bloombits"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/eth/filters"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
@ -84,16 +84,12 @@ type Backend interface {
TxPoolContentFrom(addr common.Address) (types.Transactions, types.Transactions)
SubscribeNewTxsEvent(chan<- core.NewTxsEvent) event.Subscription
// Filter API
BloomStatus() (uint64, uint64)
GetLogs(ctx context.Context, blockHash common.Hash) ([][]*types.Log, error)
ServiceFilter(ctx context.Context, session *bloombits.MatcherSession)
SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription
SubscribePendingLogsEvent(ch chan<- []*types.Log) event.Subscription
SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription
ChainConfig() *params.ChainConfig
Engine() consensus.Engine
// eth/filters needs to be initialized from this backend type, so methods needed by
// it must also be included here.
filters.Backend
}
func GetAPIs(apiBackend Backend) []rpc.API {

7
les/api_backend.go
View File

@ -168,11 +168,8 @@ func (b *LesApiBackend) GetReceipts(ctx context.Context, hash common.Hash) (type
return nil, nil
}
func (b *LesApiBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*types.Log, error) {
if number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash); number != nil {
return light.GetBlockLogs(ctx, b.eth.odr, hash, *number)
}
return nil, nil
func (b *LesApiBackend) GetLogs(ctx context.Context, hash common.Hash, number uint64) ([][]*types.Log, error) {
return light.GetBlockLogs(ctx, b.eth.odr, hash, number)
}
func (b *LesApiBackend) GetTd(ctx context.Context, hash common.Hash) *big.Int {

4
les/client.go
View File

@ -32,7 +32,6 @@ import (
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/eth/ethconfig"
"github.com/ethereum/go-ethereum/eth/filters"
"github.com/ethereum/go-ethereum/eth/gasprice"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/internal/ethapi"
@ -298,9 +297,6 @@ func (s *LightEthereum) APIs() []rpc.API {
}, {
Namespace: "eth",
Service: downloader.NewDownloaderAPI(s.handler.downloader, s.eventMux),
}, {
Namespace: "eth",
Service: filters.NewFilterAPI(s.ApiBackend, true, 5*time.Minute),
}, {
Namespace: "net",
Service: s.netRPCService,