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RPCDaemon: don't open uncomplete files at startup (#12332)
Probably right way is: check `StageSnapshots > 0` as "all downloads done". Because: - --prune.mode=minimal has not much files, but `preverified.toml` stays the same - downloader has logic to of prohibit_new_downloads.lock - downloading consider doen't even if `preverified.toml` has more files - small files may get merged - while `preverified.toml` stays the same - developer may generate new version of file (hash or len changed) - while `preverified.toml` stays the same - Downloader's `Complete` flag can't be used - because e3 does download headers and bodies first, then Complete=true happens, and then we download transactions (Complete=false happens).
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73 changes: 73 additions & 0 deletions
73
erigon-lib/downloader/downloaderrawdb/accessors_downloader.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package downloaderrawdb | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "os" | ||
| "path/filepath" | ||
| "time" | ||
|
|
||
| "github.com/erigontech/erigon-lib/kv" | ||
| ) | ||
|
|
||
| type TorrentInfo struct { | ||
| Name string `json:"name"` | ||
| Hash []byte `json:"hash"` | ||
| Length *int64 `json:"length,omitempty"` | ||
| Created *time.Time `json:"created,omitempty"` | ||
| Completed *time.Time `json:"completed,omitempty"` | ||
| } | ||
|
|
||
| func ReadTorrentInfo(downloaderDBTx kv.Tx, name string) (*TorrentInfo, error) { | ||
| var info TorrentInfo | ||
| infoBytes, err := downloaderDBTx.GetOne(kv.BittorrentInfo, []byte(name)) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| if len(infoBytes) == 0 { | ||
| return &info, nil | ||
| } | ||
| if err = json.Unmarshal(infoBytes, &info); err != nil { | ||
| return nil, err | ||
| } | ||
| return &info, nil | ||
| } | ||
|
|
||
| func ReadTorrentInfoHash(downloaderDBTx kv.Tx, name string) (hashBytes []byte, err error) { | ||
| infoBytes, err := downloaderDBTx.GetOne(kv.BittorrentInfo, []byte(name)) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| if len(infoBytes) == 20 { | ||
| return infoBytes, nil | ||
| } | ||
|
|
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| var info TorrentInfo | ||
| if err = json.Unmarshal(infoBytes, &info); err == nil { | ||
| return info.Hash, nil | ||
| } | ||
| return nil, nil | ||
| } | ||
|
|
||
| func WriteTorrentInfo(tx kv.RwTx, info *TorrentInfo) error { | ||
| infoBytes, err := json.Marshal(info) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| return tx.Put(kv.BittorrentInfo, []byte(info.Name), infoBytes) | ||
| } | ||
|
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||
| func CheckFileComplete(tx kv.Tx, name string, snapDir string) (bool, int64, *time.Time) { | ||
| info, err := ReadTorrentInfo(tx, name) | ||
| if err != nil { | ||
| return false, 0, nil | ||
| } | ||
| if info.Completed != nil && info.Completed.Before(time.Now()) { | ||
| if info.Length != nil { | ||
| if fi, err := os.Stat(filepath.Join(snapDir, name)); err == nil { | ||
| return fi.Size() == *info.Length && fi.ModTime().Equal(*info.Completed), *info.Length, info.Completed | ||
| } | ||
| } | ||
| } | ||
| return false, 0, nil | ||
| } |
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