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## Why this should be merged The `temporary.WithTempRegisteredExtras()` global lock introduced in #234 wasn't fit for purpose when used in `coreth` as it required central coordination of registration, types, and usage of the payload accessor. ## How this works Instead of a central registration point, the new `libevm.WithTemporaryExtrasLock()` function takes out a global lock and provides the caller with a handle that proves the lock is held. All of the override functions, e.g. `params.WithTempRegisteredExtras()` now require a current lock, which will be propagated by the respective `coreth` functions. See https://github.com/ava-labs/coreth/pull/1328 for intended usage in `coreth` and `subnet-evm`. A consumer of both of these can then safely do the following: ```go import ( "github.com/ava-labs/libevm/libevm" coreth "github.com/ava-labs/coreth/plugin/evm" subnet "github.com/ava-labs/subnet-evm/plugin/evm" ) // asCChain calls `fn` while emulating `coreth`. It is safe for concurrent usage with [asSubnetEVM]. func asCChain(fn func() error) error { return libevm.WithTemporaryExtrasLock(func(l libevm.ExtrasLock) error { return coreth.WithTempRegisteredLibEVMExtras(l, fn) }) } // asSubnetEVM calls `fn` while emulating `subnet-evm`. It is safe for concurrent usage with [asCChain]. func asSubnetEVM(fn func() error) error { return libevm.WithTemporaryExtrasLock(func(l libevm.ExtrasLock) error { return subnet.WithTempRegisteredLibEVMExtras(l, fn) }) } ``` ## How this was tested Unit test of the new function plus existing integration tests of all modified code. |
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| .. | ||
| asm | ||
| bloombits | ||
| forkid | ||
| rawdb | ||
| state | ||
| txpool | ||
| types | ||
| vm | ||
| .gitignore | ||
| bench_test.go | ||
| block_validator.go | ||
| block_validator_test.go | ||
| blockchain.go | ||
| blockchain_insert.go | ||
| blockchain_reader.go | ||
| blockchain_repair_test.go | ||
| blockchain_sethead_test.go | ||
| blockchain_snapshot_test.go | ||
| blockchain_test.go | ||
| blocks.go | ||
| bloom_indexer.go | ||
| chain_indexer.go | ||
| chain_indexer_test.go | ||
| chain_makers.go | ||
| chain_makers_test.go | ||
| dao_test.go | ||
| error.go | ||
| events.go | ||
| evm.go | ||
| forkchoice.go | ||
| gaspool.go | ||
| gen_genesis.go | ||
| genesis.go | ||
| genesis_alloc.go | ||
| genesis_test.go | ||
| headerchain.go | ||
| headerchain_test.go | ||
| mkalloc.go | ||
| rlp_test.go | ||
| sender_cacher.go | ||
| state_prefetcher.go | ||
| state_processor.go | ||
| state_processor_test.go | ||
| state_transition.go | ||
| state_transition.libevm.go | ||
| state_transition.libevm_test.go | ||
| txindexer.go | ||
| txindexer_test.go | ||
| types.go | ||