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common/prque: generic priority queue (#26290)

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* common, core, eth, les, trie: make prque generic

* les/vflux/server: fixed issues in priorityPool

* common, core, eth, les, trie: make priority also generic in prque

* les/flowcontrol: add test case for priority accumulator overflow

* les/flowcontrol: avoid priority value overflow

* common/prque: use int priority in some tests

No need to convert to int64 when we can just change the type used by the
queue.

* common/prque: remove comment about int64 range

---------

Co-authored-by: Zsolt Felfoldi <zsfelfoldi@gmail.com>
Co-authored-by: Felix Lange <fjl@twurst.com>
This commit is contained in:
Péter Szilágyi
2023-02-09 13:03:54 +02:00
committed by GitHub
co-authored by Zsolt Felfoldi Felix Lange
parent 6a148dd5c3
commit bf1798e04e
20 changed files with 277 additions and 264 deletions
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les/fetcher/block_fetcher.go
+5 -5
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@@ -177,9 +177,9 @@ type BlockFetcher struct {
completing map[common.Hash]*blockAnnounce // Blocks with headers, currently body-completing
// Block cache
queue *prque.Prque // Queue containing the import operations (block number sorted)
queues map[string]int // Per peer block counts to prevent memory exhaustion
queued map[common.Hash]*blockOrHeaderInject // Set of already queued blocks (to dedup imports)
queue *prque.Prque[int64, *blockOrHeaderInject] // Queue containing the import operations (block number sorted)
queues map[string]int // Per peer block counts to prevent memory exhaustion
queued map[common.Hash]*blockOrHeaderInject // Set of already queued blocks (to dedup imports)
// Callbacks
getHeader HeaderRetrievalFn // Retrieves a header from the local chain
@@ -214,7 +214,7 @@ func NewBlockFetcher(light bool, getHeader HeaderRetrievalFn, getBlock blockRetr
fetching: make(map[common.Hash]*blockAnnounce),
fetched: make(map[common.Hash][]*blockAnnounce),
completing: make(map[common.Hash]*blockAnnounce),
queue: prque.New(nil),
queue: prque.New[int64, *blockOrHeaderInject](nil),
queues: make(map[string]int),
queued: make(map[common.Hash]*blockOrHeaderInject),
getHeader: getHeader,
@@ -353,7 +353,7 @@ func (f *BlockFetcher) loop() {
// Import any queued blocks that could potentially fit
height := f.chainHeight()
for !f.queue.Empty() {
op := f.queue.PopItem().(*blockOrHeaderInject)
op := f.queue.PopItem()
hash := op.hash()
if f.queueChangeHook != nil {
f.queueChangeHook(hash, false)