1914b52de0
In the previous code WaitGroup db.wg.Add(), Wait() and db.closed were not treated in sync. In particular, it was theoretically possible to first check closed, then set closed and Wait, and then call wg.Add() while waiting (leading to WaitGroup panic). In theory it was also possible that db.env.BeginTxn() is called on a closed or nil db.env, because db.wg.Add() was called only after BeginTxn (db.wg.Wait() could already return). WaitGroup is replaced with a Cond variable. Now it is not possible to increase the active transactions count on a closed database. It is also not possible to call BeginTxn on a closed database. |
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| .. | ||
| .github/workflows | ||
| bptree | ||
| chain | ||
| commitment | ||
| common | ||
| compress | ||
| crypto | ||
| diagnostics | ||
| direct | ||
| downloader | ||
| etl | ||
| gointerfaces | ||
| kv | ||
| metrics | ||
| mmap | ||
| patricia | ||
| pedersen_hash | ||
| recsplit | ||
| rlp | ||
| rlp2 | ||
| sais | ||
| state | ||
| tools | ||
| txpool | ||
| types | ||
| wrap | ||
| .gitignore | ||
| .golangci.yml | ||
| go.mod | ||
| go.sum | ||
| LICENSE | ||
| Makefile | ||
| README.md | ||
| rules.go | ||
| tools.go | ||
erigon-lib
Parts of Erigon codebase, written from scratch and licensed under Apache 2.0.
License requirements
erigon-lib dependencies use various open source licenses compatible with Apache 2.0. This is checked on CI using make lint-licenses.
In order to keep license purity it is not allowed to refer to the code in the erigon root module from erigon-lib. This is ensured by the go.mod separation.
It is not allowed to copy or move code from erigon to erigon-lib unless all original authors agree to relief the code license from GPL to Apache 2.0.
Code migration policy
It is encouraged to write new erigon code inside erigon-lib.
It is encouraged to move and relicense parts of the code from erigon to erigon-lib that are safe and easy to move. For example, code written from scratch by erigon core contributors that has no significant external contributions could be refactored and moved.