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https://github.com/ethereum/go-ethereum.git
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62502c6712
## Why this should be merged See ava-labs/strevm#120. To get bloom filters for a block when the header doesn't contain the correct bloom because of SAE's delayed settlement, you need a custom accessor to provide arbitrary bloom. ## How this works Introduces an optional interface which, if satisfied by `filters.Backend` implementations, is used to override the Bloom filter instead of retrieving it from the `types.Header`. ## How this was tested Existing tests unchanged. Integration test demonstrates calling of the override method when present. --------- Co-authored-by: Arran Schlosberg <me@arranschlosberg.com>
67 lines
2.4 KiB
Go
67 lines
2.4 KiB
Go
// Copyright 2026 the libevm authors.
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//
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// The libevm additions to go-ethereum are free software: you can redistribute
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// them and/or modify them under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation, either version 3 of the License,
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// or (at your option) any later version.
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//
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// The libevm additions are distributed in the hope that they will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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// General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see
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// <http://www.gnu.org/licenses/>.
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package eth
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import (
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"github.com/ava-labs/libevm/core/bloombits"
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"github.com/ava-labs/libevm/ethdb"
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)
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const (
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// BloomFilterThreads is the number of goroutines used locally per filter to
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// multiplex requests onto the global servicing goroutines.
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BloomFilterThreads = bloomFilterThreads
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// BloomRetrievalBatch is the maximum number of bloom bit retrievals to
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// service in a single batch.
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BloomRetrievalBatch = bloomRetrievalBatch
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// BloomRetrievalWait is the maximum time to wait for enough bloom bit
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// requests to accumulate request an entire batch (avoiding hysteresis).
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BloomRetrievalWait = bloomRetrievalWait
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)
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// StartBloomHandlers starts a batch of goroutines to serve data for
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// [bloombits.Retrieval] requests from any number of filters. This is identical
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// to [Ethereum.startBloomHandlers], but exposed for independent use.
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func StartBloomHandlers(db ethdb.Database, sectionSize uint64) *BloomHandlers {
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bh := &BloomHandlers{
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Requests: make(chan chan *bloombits.Retrieval),
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quit: make(chan struct{}),
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}
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eth := &Ethereum{
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bloomRequests: bh.Requests,
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closeBloomHandler: bh.quit,
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chainDb: db,
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}
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eth.startBloomHandlers(sectionSize)
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return bh
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}
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// BloomHandlers serve data for [bloombits.Retrieval] requests from any number
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// of filters. [BloomHandlers.Close] MUST be called to release goroutines, after
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// which a send on the requests channel will block indefinitely.
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type BloomHandlers struct {
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Requests chan chan *bloombits.Retrieval
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quit chan struct{}
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}
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// Close releases resources in use by the [BloomHandlers]; repeated calls will
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// panic.
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func (bh *BloomHandlers) Close() {
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close(bh.quit)
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}
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