forked from algorand/go-algorand
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request algorand#5784 from Algo-devops-service/relbeta3.19.0
- Loading branch information
Showing
304 changed files
with
56,072 additions
and
14,794 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| // Copyright (C) 2019-2023 Algorand, Inc. | ||
| // This file is part of go-algorand | ||
| // | ||
| // go-algorand is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU Affero General Public License as | ||
| // published by the Free Software Foundation, either version 3 of the | ||
| // License, or (at your option) any later version. | ||
| // | ||
| // go-algorand is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU Affero General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU Affero General Public License | ||
| // along with go-algorand. If not, see <https://www.gnu.org/licenses/>. | ||
|
|
||
| package agreement | ||
|
|
||
| import ( | ||
| "sort" | ||
| "time" | ||
| ) | ||
|
|
||
| // credentialArrivalHistory maintains a circular buffer of time.Duration samples. | ||
| type credentialArrivalHistory struct { | ||
| history []time.Duration | ||
| writePtr int | ||
| full bool | ||
| } | ||
|
|
||
| func makeCredentialArrivalHistory(size int) credentialArrivalHistory { | ||
| if size < 0 { | ||
| panic("can't create CredentialArrivalHistory with negative size") | ||
| } | ||
| history := credentialArrivalHistory{history: make([]time.Duration, size)} | ||
| history.reset() | ||
| return history | ||
| } | ||
|
|
||
| // store saves a new sample into the circular buffer. | ||
| // If the buffer is full, it overwrites the oldest sample. | ||
| func (history *credentialArrivalHistory) store(sample time.Duration) { | ||
| if len(history.history) == 0 { | ||
| return | ||
| } | ||
|
|
||
| history.history[history.writePtr] = sample | ||
| history.writePtr++ | ||
| if history.writePtr == len(history.history) { | ||
| history.full = true | ||
| history.writePtr = 0 | ||
| } | ||
| } | ||
|
|
||
| // reset marks the history buffer as empty | ||
| func (history *credentialArrivalHistory) reset() { | ||
| history.writePtr = 0 | ||
| history.full = false | ||
| } | ||
|
|
||
| // isFull checks if the circular buffer has been fully populated at least once. | ||
| func (history *credentialArrivalHistory) isFull() bool { | ||
| return history.full | ||
| } | ||
|
|
||
| // orderStatistics returns the idx'th time duration in the sorted history array. | ||
| // It assumes that history is full and the idx is within the array bounds, and | ||
| // panics if either of these assumptions doesn't hold. | ||
| func (history *credentialArrivalHistory) orderStatistics(idx int) time.Duration { | ||
| if !history.isFull() { | ||
| panic("history not full") | ||
| } | ||
| if idx < 0 || idx >= len(history.history) { | ||
| panic("index out of bounds") | ||
| } | ||
|
|
||
| // if history.history is long, then we could optimize this function to use | ||
| // the linear time order statistics algorithm. | ||
| sortedArrivals := make([]time.Duration, len(history.history)) | ||
| copy(sortedArrivals[:], history.history[:]) | ||
| sort.Slice(sortedArrivals, func(i, j int) bool { return sortedArrivals[i] < sortedArrivals[j] }) | ||
| return sortedArrivals[idx] | ||
| } |
Oops, something went wrong.