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* core: vm: refactor file structurejm2019-05-061-1/+1
| | | | | For support other vm types, this pr modified the core/vm file structures.
* Change import go github.com/dexon-foundation/dexonWei-Ning Huang2019-04-091-9/+9
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* all: protect self-mined block during reorg (#17656)gary rong2018-09-201-2/+2
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* cmd, core, eth, miner, params: configurable gas floor and ceilPéter Szilágyi2018-08-291-1/+2
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* all: get rid of error when creating memory database (#16716)gary rong2018-05-091-1/+1
| | | | | | | | * all: get rid of error when create mdb * core: clean up variables definition * all: inline mdb definition
* core/rawdb: separate raw database access to own package (#16666)Péter Szilágyi2018-05-071-8/+10
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* core, trie: intermediate mempool between trie and database (#15857)Péter Szilágyi2018-02-061-2/+2
| | | This commit reduces database I/O by not writing every state trie to disk.
* all: switch gas limits from big.Int to uint64Péter Szilágyi2018-01-031-5/+4
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* accounts, consensus, core, eth: make chain maker consensus agnostic (#15497)gary rong2017-12-221-1/+1
| | | | | | | | | | * accounts, consensus, core, eth: make chain maker consensus agnostic * consensus, core: move CalcDifficulty to Engine interface * consensus: add docs for calcDifficulty function * consensus, core: minor comment fixups
* core, light: send chain events using event.Feed (#14865)Miya Chen2017-08-181-4/+2
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* core: fix blockchain goroutine leaks in testsPéter Szilágyi2017-08-071-0/+1
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* core, consensus: pluggable consensus engines (#3817)Péter Szilágyi2017-04-051-3/+3
| | | | | This commit adds pluggable consensus engines to go-ethereum. In short, it introduces a generic consensus interface, and refactors the entire codebase to use this interface.
* core: refactor genesis handlingFelix Lange2017-03-231-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | This commit solves several issues concerning the genesis block: * Genesis/ChainConfig loading was handled by cmd/geth code. This left library users in the cold. They could specify a JSON-encoded string and overwrite the config, but didn't get any of the additional checks performed by geth. * Decoding and writing of genesis JSON was conflated in WriteGenesisBlock. This made it a lot harder to embed the genesis block into the forthcoming config file loader. This commit changes things so there is a single Genesis type that represents genesis blocks. All uses of Write*Genesis* are changed to use the new type instead. * If the chain config supplied by the user was incompatible with the current chain (i.e. the chain had already advanced beyond a scheduled fork), it got overwritten. This is not an issue in practice because previous forks have always had the highest total difficulty. It might matter in the future though. The new code reverts the local chain to the point of the fork when upgrading configuration. The change to genesis block data removes compression library dependencies from package core.
* all: swap out the C++ ethash to the pure Go one (mining todo)Péter Szilágyi2017-03-091-2/+3
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* common: move big integer math to common/math (#3699)Felix Lange2017-02-271-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * common: remove CurrencyToString Move denomination values to params instead. * common: delete dead code * common: move big integer operations to common/math This commit consolidates all big integer operations into common/math and adds tests and documentation. There should be no change in semantics for BigPow, BigMin, BigMax, S256, U256, Exp and their behaviour is now locked in by tests. The BigD, BytesToBig and Bytes2Big functions don't provide additional value, all uses are replaced by new(big.Int).SetBytes(). BigToBytes is now called PaddedBigBytes, its minimum output size parameter is now specified as the number of bytes instead of bits. The single use of this function is in the EVM's MSTORE instruction. Big and String2Big are replaced by ParseBig, which is slightly stricter. It previously accepted leading zeros for hexadecimal inputs but treated decimal inputs as octal if a leading zero digit was present. ParseUint64 is used in places where String2Big was used to decode a uint64. The new functions MustParseBig and MustParseUint64 are now used in many places where parsing errors were previously ignored. * common: delete unused big integer variables * accounts/abi: replace uses of BytesToBig with use of encoding/binary * common: remove BytesToBig * common: remove Bytes2Big * common: remove BigTrue * cmd/utils: add BigFlag and use it for error-checked integer flags While here, remove environment variable processing for DirectoryFlag because we don't use it. * core: add missing error checks in genesis block parser * common: remove String2Big * cmd/evm: use utils.BigFlag * common/math: check for 256 bit overflow in ParseBig This is supposed to prevent silent overflow/truncation of values in the genesis block JSON. Without this check, a genesis block that set a balance larger than 256 bits would lead to weird behaviour in the VM. * cmd/utils: fixup import
* params: core, core/vm, miner: 64bit gas instructionsJeffrey Wilcke2017-02-141-3/+4
| | | | | | | | | | | | | | | | | Reworked the EVM gas instructions to use 64bit integers rather than arbitrary size big ints. All gas operations, be it additions, multiplications or divisions, are checked and guarded against 64 bit integer overflows. In additon, most of the protocol paramaters in the params package have been converted to uint64 and are now constants rather than variables. * common/math: added overflow check ops * core: vmenv, env renamed to evm * eth, internal/ethapi, les: unmetered eth_call and cancel methods * core/vm: implemented big.Int pool for evm instructions * core/vm: unexported intPool methods & verification methods * core/vm: added memoryGasCost overflow check and test
* Revert "params: core, core/vm, miner: 64bit gas instructions (#3514)"Jeffrey Wilcke2017-02-131-4/+3
| | | | This reverts commit 8b57c494908637a5c0e74f8f7a13b3218e026757.
* params: core, core/vm, miner: 64bit gas instructions (#3514)Jeffrey Wilcke2017-02-021-3/+4
| | | | | | | | | | | | | | | | Reworked the EVM gas instructions to use 64bit integers rather than arbitrary size big ints. All gas operations, be it additions, multiplications or divisions, are checked and guarded against 64 bit integer overflows. In additon, most of the protocol paramaters in the params package have been converted to uint64 and are now constants rather than variables. * common/math: added overflow check ops * core: vmenv, env renamed to evm * eth, internal/ethapi, les: unmetered eth_call and cancel methods * core/vm: implemented big.Int pool for evm instructions * core/vm: unexported intPool methods & verification methods * core/vm: added memoryGasCost overflow check and test
* cmd/geth, core: add support for recording SHA3 preimages (#3543)Nick Johnson2017-01-171-2/+3
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* core/types: remove redundant SignECDSA wrappers, rename to SignTxFelix Lange2017-01-051-2/+2
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* core/types, params: EIP#155Jeffrey Wilcke2016-11-131-2/+2
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* core, core/state, trie: EIP158, reprice & skip empty account writeJeffrey Wilcke2016-11-131-2/+2
| | | | | | | | | | | | | | | This commit implements EIP158 part 1, 2, 3 & 4 1. If an account is empty it's no longer written to the trie. An empty account is defined as (balance=0, nonce=0, storage=0, code=0). 2. Delete an empty account if it's touched 3. An empty account is redefined as either non-existent or empty. 4. Zero value calls and zero value suicides no longer consume the 25k reation costs. params: moved core/config to params Signed-off-by: Jeffrey Wilcke <jeffrey@ethereum.org>
* accounts, core, eth: pass chain config for chain maker to test DAOPéter Szilágyi2016-07-151-1/+1
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* core: improved chainDb using sequential keyszsfelfoldi2016-06-071-5/+5
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* core: chain read/write speed benchmarkszsfelfoldi2016-06-061-0/+119
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* core: added basic chain configurationJeffrey Wilcke2016-04-011-1/+1
| | | | | | | | | Added chain configuration options and write out during genesis database insertion. If no "config" was found, nothing is written to the database. Configurations are written on a per genesis base. This means that any chain (which is identified by it's genesis hash) can have their own chain settings.
* cmd, eth, ethdb, node: prioritise chaindata for resources, bump cachePéter Szilágyi2016-03-091-1/+1
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* parmas, crypto, core, core/vm: homestead consensus protocol changesGustav Simonsson2016-02-181-1/+1
| | | | | | | | * change gas cost for contract creating txs * invalidate signature with s value greater than secp256k1 N / 2 * OOG contract creation if not enough gas to store code * new difficulty adjustment algorithm * new DELEGATECALL op code
* core, eth, rpc: split out block validator and state processorJeffrey Wilcke2015-11-181-1/+0
| | | | | | | | | | | | This removes the burden on a single object to take care of all validation and state processing. Now instead the validation is done by the `core.BlockValidator` (`types.Validator`) that takes care of both header and uncle validation through the `ValidateBlock` method and state validation through the `ValidateState` method. The state processing is done by a new object `core.StateProcessor` (`types.Processor`) and accepts a new state as input and uses that to process the given block's transactions (and uncles for rewords) to calculate the state root for the next block (P_n + 1).
* core, eth: receipt chain reconstructionPéter Szilágyi2015-10-191-1/+1
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* cmd/geth, cmd/utils, core, rpc: renamed to blockchainJeffrey Wilcke2015-10-041-1/+1
| | | | | | * Renamed ChainManager to BlockChain * Checkpointing is no longer required and never really properly worked when the state was corrupted.
* core, core/types: readd transactions after chain re-orgJeffrey Wilcke2015-09-221-1/+1
| | | | | | | | | | | | | | Added a `Difference` method to `types.Transactions` which sets the receiver to the difference of a to b (NOTE: not a **and** b). Transaction pool subscribes to RemovedTransactionEvent adding back to those potential missing from the chain. When a chain re-org occurs remove any transactions that were removed from the canonical chain during the re-org as well as the receipts that were generated in the process. Closes #1746
* all: move common.Database to package ethdbFelix Lange2015-09-151-1/+1
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* core, eth, trie, xeth: merged state, chain, extra databases in oneJeffrey Wilcke2015-08-081-2/+2
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* Merge pull request #1515 from fjl/license-fixesJeffrey Wilcke2015-07-281-1/+1
|\ | | | | all: fix license headers one more time
| * all: fix license headers one more timeFelix Lange2015-07-241-1/+1
| | | | | | | | I forgot to update one instance of "go-ethereum" in commit 3f047be5a.
* | Merge pull request #1510 from fjl/license-fixesJeffrey Wilcke2015-07-231-4/+4
|\| | | | | all: license fixes
| * all: update license headers to distiguish GPL/LGPLFelix Lange2015-07-231-4/+4
| | | | | | | | | | All code outside of cmd/ is licensed as LGPL. The headers now reflect this by calling the whole work "the go-ethereum library".
* | cmd, core, eth, ethdb: cache flag to allocate memory for db internal usePéter Szilágyi2015-07-221-1/+1
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* cmd, core, eth, common: genesis preparationJeffrey Wilcke2015-07-101-2/+2
| | | | | Implemented the --genesis flag thru which we can set a custom genesis block, including the official Ethereum genesis block.
* all: update license informationFelix Lange2015-07-071-0/+16
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* core, miner: miner header validation, transaction & receipt writingJeffrey Wilcke2015-07-031-1/+1
| | | | | | | | * Miners do now verify their own header, not their state. * Changed old putTx and putReceipts to be exported * Moved writing of transactions and receipts out of the block processer in to the chain manager. Closes #1386 * Miner post ChainHeadEvent & ChainEvent. Closes #1388
* core: generate benchmark keys only onceFelix Lange2015-06-301-9/+23
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* core: add InsertChain benchmarksFelix Lange2015-06-301-0/+149
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