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Downloader: prohibit new downloads #203

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merged 7 commits into from
Dec 16, 2023
Merged

Downloader: prohibit new downloads #203

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AskAlexSharov Dec 9, 2023
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Merge branch 'master' into d_no_d
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20 changes: 16 additions & 4 deletions downloader/downloader.proto
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Original file line number Diff line number Diff line change
Expand Up @@ -8,21 +8,30 @@ option go_package = "./downloader;downloader";
package downloader;

service Downloader {
rpc Download (DownloadRequest) returns (google.protobuf.Empty) {}
// Erigon "download once" - means restart/upgrade/downgrade will not download files (and will be fast)
// After "download once" - Erigon will produce and seed new files
// Downloader will able: seed new files (already existing on FS), download uncomplete parts of existing files (if Verify found some bad parts)
rpc ProhibitNewDownloads (ProhibitNewDownloadsRequest) returns (google.protobuf.Empty) {}

// Adding new file to downloader: non-existing files it will download, existing - seed
rpc Add (AddRequest) returns (google.protobuf.Empty) {}
rpc Delete (DeleteRequest) returns (google.protobuf.Empty) {}

// Trigger verification of files
// If some part of file is bad - such part will be re-downloaded (without returning error)
rpc Verify (VerifyRequest) returns (google.protobuf.Empty) {}
rpc Stats (StatsRequest) returns (StatsReply) {}
}

// DownloadItem:
// - if Erigon created new snapshot and want seed it
// - if Erigon wnat download files - it fills only "torrent_hash" field
message DownloadItem {
message AddItem {
string path = 1;
types.H160 torrent_hash = 2; // will be resolved as magnet link
}
message DownloadRequest {
repeated DownloadItem items = 1; // single hash will be resolved as magnet link
message AddRequest {
repeated AddItem items = 1; // single hash will be resolved as magnet link
}

// DeleteRequest: stop seeding, delete file, delete .torrent
Expand All @@ -37,6 +46,9 @@ message VerifyRequest {
message StatsRequest {
}

message ProhibitNewDownloadsRequest {
}

message StatsReply {
// First step on startup - "resolve metadata":
// - understand total amount of data to download
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