Anna Shaleva
861aca1547
rpc, smartcontract: move contract metadata to smartcontract package
2020-05-04 08:37:39 +03:00
Evgenii Stratonikov
c8328981ec
vm: refactor tests
...
Most of the tests follow the same logic:
push items on stack -> execute program -> check single result.
This commit reuses this function in most of the tests.
2020-04-30 19:29:52 +03:00
Evgenii Stratonikov
9081211f12
vm: implement NOTEQUAL opcode
2020-04-30 18:00:15 +03:00
Evgenii Stratonikov
70f0c656b0
vm: check Integer size on creation
2020-04-30 18:00:15 +03:00
Evgenii Stratonikov
a64a0f2681
vm: reorder arithmetic opcodes
2020-04-30 18:00:15 +03:00
Evgenii Stratonikov
519b31a704
vm: remove crypto-related opcodes
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All cryptography has moved to interops in NEO3.
There is no SHA256 interop RN, but it is to appear later.
Closes #777 .
2020-04-29 19:16:38 +03:00
Roman Khimov
c1aa96d614
Merge pull request #911 from nspcc-dev/feature/convert
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vm: implement CONVERT opcode
2020-04-28 18:08:36 +03:00
Evgenii Stratonikov
4b064e18aa
emit: converto to Boolean in Bool()
2020-04-28 17:36:58 +03:00
Evgenii Stratonikov
2fd63387c0
compiler: support CONVERT interops
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When result is needed to have certain type, we should have ability
to convert it, with the help of CONVERT opcode.
2020-04-28 16:44:06 +03:00
Evgenii Stratonikov
bfcb1a409f
compiler: extend possible returned values
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All integer values (int32, uint64...) should be able to be returned.
2020-04-28 16:44:06 +03:00
Evgenii Stratonikov
7e98a2ffa0
vm: implements CONVERT opcode
2020-04-28 16:38:52 +03:00
Evgenii Stratonikov
be38798785
vm: move Bool method to the StackItem interface
2020-04-28 15:13:41 +03:00
Anna Shaleva
fa467ce628
core: add txes duplication check on block.DecodeBinary
2020-04-27 18:00:01 +03:00
Anna Shaleva
dbda721599
consensus.Block: removed unnecessary setters
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As far as we have consensus context in NewBlockFromContext, we don't
need them anymore.
2020-04-27 17:59:56 +03:00
Anna Shaleva
6db4ca874d
consensus: replace NewBlock() with NewBlockFromContext(ctx *Context)
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We have to set ConsensusData.PrimaryIndex field of Block, so this value
can be retrieved from consensus context.
2020-04-27 17:58:25 +03:00
Anna Shaleva
29d321b5e1
*: drop miner transaction
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1. Completely remove miner transaction
2. Change validation rule for block: block without transactions is
valid.
2020-04-27 17:57:37 +03:00
Anna Shaleva
55fd9f8d24
core: change block.ConsensusData to neo3 format
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1. Dropped `Base.ConsensusData` block field
2. Added `Block.ConsensusData` field with `Nonce` and `PrimaryIndex`
3. Removed "Neo.Header.GetConsensusData" and
"AntShares.Header.GetConsensusData" interops
2020-04-27 17:57:37 +03:00
Anna Shaleva
0de5cb1bde
core, consensus: nanoseconds-precision timestamp
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Keep timestamp of consensus messages in nanoseconds-precision state
2020-04-27 17:57:32 +03:00
Anna Shaleva
aa554f0a9a
core: update block timestamp format
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Changed block.Timestamp from uint32 to uint64
2020-04-27 17:56:44 +03:00
Evgenii Stratonikov
dca257f584
vm: move ISNULL opcode
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Change it according to NEO3-preview2.
2020-04-27 16:09:03 +03:00
Roman Khimov
e6f5cffff6
transaction: drop Enrollment and State types
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They're completely replaced now by the NEO native contract voting system.
2020-04-27 16:06:58 +03:00
Roman Khimov
b83e84ca08
core: switch to the new voting system (via native NEO contract)
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It has all the methods required now, so you can register, vote and get
voting results. Fixes #865 .
2020-04-27 16:06:50 +03:00
Roman Khimov
2fa3bdf6a9
core/native: move Votes from account to native NEO state
2020-04-27 12:30:39 +03:00
Roman Khimov
bc4a6a6bab
core/native: move NextValidators storage to NEO contract
2020-04-27 12:30:39 +03:00
Roman Khimov
66c80d429e
native: update voting information when changing Neo balance
2020-04-27 12:30:39 +03:00
Roman Khimov
36c6c6690b
native: distribute GAS even for empty transfers
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As it's one of the use cases.
2020-04-27 12:30:39 +03:00
Roman Khimov
064636768b
core/native: move ValidatorsCount processing into native NEO contract
2020-04-27 12:30:39 +03:00
Roman Khimov
3476a18fa9
core/native: store validators in NEO native contract state
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This technically breaks voting with UTXO-based NEO (processTXWithValidators*),
but we're moving towards the new system.
2020-04-27 12:30:39 +03:00
Roman Khimov
4e8ee697ee
native: store NEO and GAS state in the storage
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As it should be done (although current serialization format is not quite
right).
2020-04-27 12:30:39 +03:00
Roman Khimov
8c02c6b22c
native: put proper Null StackItem for transfer event
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nil is not a good StackItem, we have proper VM-level Null for this.
2020-04-27 12:30:39 +03:00
Roman Khimov
1dcace1594
native: don't distribute gas at block 0
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It fails at the moment and it doesn't make sense at conceptual level.
2020-04-27 12:30:39 +03:00
Roman Khimov
30836ca69b
core/native: untangle native contracts initialization
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The notion of NativeContractState shouldn't ever existed, native contract is a
contract and its state is saved as regular contract state which is critical
because we'll have MPT calculations over this state soon.
Initial minting should be done in Neo.Native.Deploy because it generates
notification that should have proper transaction context.
RegisterNative() shouldn't exist as a public method, native contracts are only
registered at block 0 and they can do it internally, no outside user should be
able to mess with it.
Move some structures from `native` package to `interop` also to avoid circular
references as interop.Context has to have a list of native contracts (exposing
them via Blockchainer is again too dangerous, it's too powerful tool).
2020-04-27 12:30:39 +03:00
Anna Shaleva
869c7d6afa
core: init native interops in the genesis block
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closes #836
2020-04-27 12:30:39 +03:00
Evgenii Stratonikov
7c3d7c0261
vm: implement NEWARRAYT opcode
2020-04-27 09:06:48 +03:00
Evgenii Stratonikov
d3b9aef8e2
vm: implement ISTYPE opcode
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Also make StackItemType public and reorder it according to NEO3.
2020-04-27 09:01:26 +03:00
Evgenii Stratonikov
48a41bd737
vm: implement CLEARITEMS opcode
2020-04-27 09:01:26 +03:00
Evgenii Stratonikov
9fd04aefa5
vm: implement NEWARRAY0 and NEWSTRUCT0 opcodes
2020-04-24 13:49:10 +03:00
Evgenii Stratonikov
03761421f8
vm: reorder Array/Map opcodes
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Also SIZE can be used for both Arrays/Maps and ByteArrays.
2020-04-24 13:48:44 +03:00
Evgenii Stratonikov
d6624a92ca
vm: implement new JMP* and CALL* opcodes
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In compiler JMP*_L opcodes are always used, as this requires less effort.
2020-04-24 10:16:41 +03:00
Evgenii Stratonikov
fba185cd99
vm: remove stack isolation opcodes
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They are not present in NEO3 and will be creating additional difficulties
during future flow-control opcodes implementation.
2020-04-24 10:15:14 +03:00
Evgenii Stratonikov
7caa81a81c
rpc/test: generate block for submitblock on-the-fly
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There is no need to provide hex when chain is dumped.
2020-04-24 08:54:22 +03:00
Evgenii Stratonikov
0f17402599
testchain: implement Sign function
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Sign any data by all consensus nodes.
2020-04-23 17:09:09 +03:00
Evgenii Stratonikov
76a6937f32
rpc: simplify getblockheader RPC test
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Set up hash once and get header via provided chain.
2020-04-23 17:09:08 +03:00
Evgenii Stratonikov
008e6eb233
vm: implement new PUSH opcodes
2020-04-23 10:52:28 +03:00
Evgenii Stratonikov
2c39e6fcec
consensus: use unencrypted WIFs for test validators
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They are easier to work with, because of having no dependencies of VM.
2020-04-23 10:37:45 +03:00
Evgenii Stratonikov
cc20ba651d
core: use opcodes instead of raw bytes in tests
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It will be helpful during future opcode reordering in NEO3.
2020-04-23 10:37:01 +03:00
Evgenii Stratonikov
f50eaba202
consensus: remove debug test
2020-04-23 10:37:01 +03:00
Evgenii Stratonikov
1a54be279e
vm: simplify SimpleCall test
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It was taken from the compiler output, but there is
no need in using a lot of complex instructions.
2020-04-23 10:36:44 +03:00
Evgenii Stratonikov
351fdd469f
core: calcultate NEO owner on-the-fly
2020-04-23 10:36:44 +03:00
Evgenii Stratonikov
1e50016a91
core,test: move helper functions for testchain to the internal package
...
Our test chain is used in core,rpc and (in future) interop packages.
It is better to have all related declarations in one place to avoid
code duplication.
2020-04-22 18:17:11 +03:00
Evgenii Stratonikov
c508a36827
core,network: shutdown services in tests properly
2020-04-22 17:53:59 +03:00
Evgenii Stratonikov
70b183fb9d
wallet: add test for regenerating test/docker wallets
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When changing accounts or VM, it is useful to be able to
regenerate all wallets easy and fast.
2020-04-22 17:17:22 +03:00
Anna Shaleva
2b5c14160c
core: add sender field to transaction
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closes #860
2020-04-20 17:21:28 +03:00
Evgenii Stratonikov
cde4ccf01c
vm: remove CHECKSIG/VERIFY/CHECKMULTISIG opcodes
2020-04-20 11:55:24 +03:00
Evgenii Stratonikov
4740d937aa
vm: dont use SetCheckedHash outside of vm
package
2020-04-20 11:55:24 +03:00
Evgenii Stratonikov
941410a840
core: change verification scripts to new format
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Verification scripts now invoke Neo.Crypto.* interops instead of
CHECKSIG/VERIFY opcodes.
2020-04-20 11:55:24 +03:00
Evgenii Stratonikov
3657f2e21d
consensus: set Nonce and ValidUntilBlock on proposal
...
Related #841 .
2020-04-20 11:55:24 +03:00
Roman Khimov
c10c7d2100
Merge pull request #874 from nspcc-dev/disallow-negative-SHL-SHR
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vm: disallow negative shifts for SHL/SHR
2020-04-20 10:30:33 +03:00
Roman Khimov
9a67bfac0b
network: drop checksums from messages
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Follow neo-project/neo#710 changes.
2020-04-19 23:40:31 +03:00
Roman Khimov
91f8626c42
vm: disallow negative shifts for SHL/SHR
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Follow neo-project/neo-vm#257 change for Neo 3.
2020-04-19 19:15:00 +03:00
Anna Shaleva
b809d09b24
rpc: add validUntilBlock to transferNEP5
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In #856 I forgot to add validUntilBlock to NEP5 transfer transaction,
so added now.
2020-04-17 13:52:23 +03:00
Roman Khimov
ab8296bc57
Merge pull request #857 from nspcc-dev/neo3/verifiable
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core,crypto: implement Verifiable interface
2020-04-17 13:06:55 +03:00
Evgenii Stratonikov
ceff8736f2
vm: use ID-based syscalls
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In NEO3 SYSCALL opcode has 4-byte ID parameter.
This commit removes support for string-based syscalls and
changes SYSCALL's parameter to be fixed 4-byte value.
2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
bfbbef952a
vm: move InteropNameToID to emit package
2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
93d2a3e031
vm: serialize zero Integer to an empty ByteArray
2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
5dba30a49d
vm: update bool -> []byte conversion to NEO 3
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This reverts commit 4c688355bc
.
2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
2fd26287c5
vm: update SUBSTR to NEO3 version
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This reverts commit 9ebb793009
.
2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
f5933c83c6
vm: update json tests to neo3 branch
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Skip them until all opcodes will be implemented.
2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
a224917229
consensus: implement Verifiable interface for Payload
2020-04-17 11:12:40 +03:00
Evgenii Stratonikov
82b230f19f
core: rename *block.Base.GetHashableData to GetSignedPart()
...
This allow to use `Block` as a Verifiable item.
When tx is provided, it is set as an interop's script container.
Otherwise, block is set.
2020-04-17 11:12:40 +03:00
Evgenii Stratonikov
a92872931c
interop/crypto: allow ECDsaVerify to verify ScriptContainer
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When verifying transaction or block, verification script can be
a simple PUSHNULL + SYSCALL, which means that script-encontaining
entity should be verified.
2020-04-17 11:12:40 +03:00
Evgenii Stratonikov
8f08065a8e
interop/crypto: allow ECDsaVerify to accept interop items
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When invokes with interop item on stack, it should check
for the signature of Verifiable item it contains.
2020-04-17 11:12:40 +03:00
Evgenii Stratonikov
2879f89337
crypto: declare Verifiable and ScriptContainer interfaces
2020-04-17 11:12:40 +03:00
Roman Khimov
c7ab99ddc1
consensus: drop timestamp from outer payload
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It's not used really and NEO3 doesn't have it on the wire.
2020-04-17 00:09:40 +03:00
Roman Khimov
888be75445
Merge pull request #863 from nspcc-dev/drop-publish-tx
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Drop publish tx
2020-04-16 21:23:37 +03:00
Roman Khimov
c7c788d10b
Merge pull request #781 from nspcc-dev/neo3/native
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Implement Native contract mechanism
2020-04-16 18:41:13 +03:00
Roman Khimov
e150bd7bb0
Merge pull request #859 from nspcc-dev/neo3/partial_consensus_message_decoding
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consensus: added partial message decoding
2020-04-16 16:58:59 +03:00
Evgenii Stratonikov
76700f31cf
core: implement skeletons for NEO/GAS native contracts
2020-04-16 15:55:35 +03:00
Evgenii Stratonikov
25354c44f9
core: implement NativeContract support
2020-04-16 15:55:34 +03:00
Evgenii Stratonikov
3831aec53f
vm: make NewBigInteger accept *big.Int
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It creates big.Int internally anyway, so this is the most flexible way.
2020-04-16 15:54:58 +03:00
Evgenii Stratonikov
9586af32f2
core: move runtime.CheckWitness interop to a separate package
2020-04-16 15:54:58 +03:00
Evgenii Stratonikov
8a2130f5b6
core: extend Blockchainer with GetStandByValidators()
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A list of standby validators can be needed in native contracts.
2020-04-16 15:54:58 +03:00
Evgenii Stratonikov
b446753c57
core,vm: move get/putContextScriptHash to vm
package
2020-04-16 15:54:52 +03:00
Roman Khimov
40991d3be3
transaction: drop AgencyType and VotingType
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I have no idea what are they about.
2020-04-16 14:44:46 +03:00
Roman Khimov
4912e4f425
*: drop Publish transaction type
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It shouldn't be used even in NEO 2 as it was substituted by contract
deployment interop functions.
2020-04-16 14:40:20 +03:00
Anna Shaleva
9dd5ab5e2b
consensus: added partial message decoding
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closes #849
2020-04-16 14:35:58 +03:00
Evgenii Stratonikov
be407332b9
vm: add TryInteger() to StackItem interface
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Conversion should be done in a StackItem, not in an Element.
2020-04-16 14:05:32 +03:00
Evgenii Stratonikov
dd38e3ec3b
smartcontract: add smartcontract manifest
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Manifest contains all of smartcontract's metadata including
parameters, return value, permissions etc.
2020-04-16 14:05:32 +03:00
Anna Shaleva
70da3c86f1
rpc: fix typo
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Fixed typo in annotation of CalculateInputs method of RPC Client.
2020-04-15 13:46:44 +03:00
Anna Shaleva
5fa11987d2
core: add validUntilBlock field to transaction
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1. closes #841
2. Commented out test cases where binary transaction are used.
These test cases marked with `TODO NEO3.0: Update binary` and need to be
updated.
3. Updated other tests.
4. Added cache to calculateValidUntilBlock() RPC-client method.
2020-04-15 13:46:43 +03:00
Roman Khimov
1e3c36433f
Merge pull request #844 from nspcc-dev/neo3/nonce
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core: add nonce field to transaction
2020-04-14 16:24:02 +03:00
Anna Shaleva
65503aa9b4
core: add nonce field to transaction
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1. Closes #840 : added Nonce field to transaction.Transaction and
removed Nonce field from transaction.MinerTx
2. Added following methods to different tx types:
- NewMinerTx()
- NewMinerTxWithNonce(...)
- NewEnrollmentTx(...)
- NewIssueTx()
- NewPublishTx(...)
- NewRegisterTx(...)
- NewStateTx(...)
in order to avoid code duplication when new transaction is created.
3. Commented out test cases where binary transaction/block are used.
These test cases marked with `TODO NEO3.0: Update binary` and need to be
updated.
4. Updated other tests
5. Added constant Nonce to GoveringTockenTx, UtilityTokenTx and genesis
block to avoid data variability. Also marked with TODO.
2020-04-14 16:19:41 +03:00
Evgenii Stratonikov
a99e0d7ba6
core: fix typo in TestECDSAVerify
2020-04-14 16:15:50 +03:00
Roman Khimov
ace5614a3d
Merge pull request #783 from nspcc-dev/neo3/movecrypto
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Implement Neo.Crypto.* interops
2020-04-14 15:54:30 +03:00
Roman Khimov
c40d7aa7f4
core: bump DB version to make it differ from 2.0 branch
2020-04-14 12:54:57 +03:00
Evgenii Stratonikov
4ad29d0867
compiler: emit Neo.Crypto.ECDsaVerify syscall instead of CHECKSIG
...
Also change the name of `VerifySignature` interop, to match
syscall's name. It also accepts arguments in different order.
2020-04-13 13:47:39 +03:00
Evgenii Stratonikov
948729137f
vm: remove HASH160/HASH256 opcodes
2020-04-13 13:47:39 +03:00
Evgenii Stratonikov
c23af595c9
core: implement Neo.Crypto.ECDsaCheckMultisig interop
2020-04-13 13:47:39 +03:00
Evgenii Stratonikov
5a30af2c75
core: implement Neo.Crypto.ECDsaVerify interop
2020-04-13 13:46:31 +03:00
Evgenii Stratonikov
1611ede58c
crypto/keys: implement NewPublicKeyFromBytes()
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It is convenient to have a single function instead of
allocating new `PublicKey` and using `DecodeBytes()` on it.
2020-04-13 13:13:15 +03:00
Anna Shaleva
d1f92a585b
core: add NewTransactionFromBytes method to Transaction
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Added `NewTransactionFromBytes(b []byte)` method to
transaction.Transaction in order to avoid code duplication.
2020-04-13 12:04:43 +03:00
Evgenii Stratonikov
30cc2c5783
core: move enumerator/iterator interops to a separate packages
2020-04-11 10:56:36 +03:00
Evgenii Stratonikov
7ffc6c0936
core: move interopContext to a separate package
2020-04-11 10:56:36 +03:00
Evgenii Stratonikov
90a08986d6
core: fix typo in function doc-comment
2020-04-11 10:56:36 +03:00
Evgenii Stratonikov
89d1f7ce75
core: remove unneeded comment
...
Serialization interops are already implemented.
2020-04-11 10:56:36 +03:00
Evgenii Stratonikov
a7c19d445b
core: move Blockchainer interface to a separate package
2020-04-11 10:56:36 +03:00
Evgenii Stratonikov
efddcf3bfe
core: remove interop methods from interopContext
...
If interops are defined as a separate functions
they can be implemented in a separate packages
which can help us to structure core.
2020-04-11 10:56:35 +03:00
Roman Khimov
5a22651e36
Merge pull request #784 from nspcc-dev/neo3/null
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vm: support NULL stack item
2020-04-10 10:38:17 +03:00
Roman Khimov
bfaa025a34
Merge pull request #839 from nspcc-dev/feature/badgerdb_support
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storage: add support of BadgerDB
2020-04-09 15:57:50 +03:00
Anna Shaleva
54cdfe4a23
storage: add support of BadgerDB
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closes #820
2020-04-09 13:55:59 +03:00
Roman Khimov
54a95810a4
Merge pull request #833 from nspcc-dev/test/vm_calls
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vm: missing tests for CALL* instructions
2020-04-09 12:12:41 +03:00
Anna Shaleva
9f0bc2aaf5
vm: add tests to CALL* instructions
...
closes #452
2020-04-09 11:20:39 +03:00
Evgenii Stratonikov
c71ad6a5db
cli: output contract after compiling only with --verbose flag
...
Also remove Debug from compiler option as it is used only in CLI.
2020-04-08 13:09:51 +03:00
Evgenii Stratonikov
ee0ba9b1b4
core: make SpawnVM a method of context
...
spawnVMWithInterops is rather long too type and
it doesn't use Blockchain in any way.
2020-04-08 08:38:45 +03:00
Evgenii Stratonikov
a71cd0961e
core/dao: remove unnecessary slice type
...
It is used only once, so a simple `sort.Slice`
invocation will suffice.
2020-04-08 08:38:45 +03:00
Evgenii Stratonikov
030b7754ad
core: move DAO to a separate package
2020-04-08 08:38:44 +03:00
Anna Shaleva
495c1b0565
vm: add tests for missing bit and numeric operations
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Added tests for:
- bit operatoins: AND, OR, XOR
- numeric operations: BOOLOR, MIN, MAX, WITHIN, NEGATE
2020-04-07 18:10:31 +03:00
Roman Khimov
4e0c3fab0f
Merge pull request #811 from nspcc-dev/feature/debug
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compiler: support neo-debugger
2020-04-06 19:18:13 +03:00
Evgenii Stratonikov
da826522f8
compiler: set variable index on first declaration
...
This way variables will have indices corresponding to their
order of appearance in a source file.
2020-04-06 15:30:07 +03:00
Evgenii Stratonikov
457e7e006a
compiler: support exporting method variables in debug info
2020-04-06 15:30:07 +03:00
Evgenii Stratonikov
5bdee683e6
cli,compiler: support emitting debug info in a file
2020-04-06 15:30:07 +03:00
Evgenii Stratonikov
5d3da26e1e
compiler: support sequence points in debug info
...
Sequence points is a way to map a specific instruction offset
from a compiled contract to a text span in a source file.
This commit implements mapping only for `return` statements.
Further improvements are straight-forward.
2020-04-06 15:30:07 +03:00
Evgenii Stratonikov
24fef35ead
compiler: split Compile info sub-functions
...
Also add tests for basic debug info.
2020-04-06 15:30:07 +03:00
Evgenii Stratonikov
00c40b58aa
compiler: record basic debug info
...
Save info about method's byte-code sections.
2020-04-06 15:30:06 +03:00
Roman Khimov
9997661998
Merge pull request #821 from nspcc-dev/fix-cache-propagation-to-invocations
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core: wrap cached dao properly, don't miss cached data
2020-04-06 11:52:41 +03:00
Evgenii Stratonikov
96806262bf
vm: handle negative arguments in SHL/SHR
...
Do it as in reference implementation: a >> -b == a << b.
2020-04-06 10:46:35 +03:00
Roman Khimov
83a02f42f7
Merge pull request #825 from nspcc-dev/fix/compiler
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compiler: accept varargs in `runtime.Notify`
2020-04-06 10:08:02 +03:00
Evgenii Stratonikov
1fcc019bf3
rpc: update test chain
...
Also provide info for getblockheader RPC while
generating test chain.
2020-04-06 09:31:09 +03:00
Evgenii Stratonikov
004023920e
rpc: use Notify with varargs in the test contract
2020-04-06 09:31:09 +03:00
Evgenii Stratonikov
efad66aee1
compiler: make Notify accept varargs
2020-04-06 09:31:09 +03:00
Evgenii Stratonikov
0023c4f1f6
vm: use truncated division in MOD
...
Mimic C#'s `%` behavior.
Related 4b44190
(#773 ).
2020-04-06 09:30:48 +03:00
Roman Khimov
5f09381cf4
core: wrap cached dao properly, don't miss cached data
...
Fixes #817 where invoked contract missed updated account information because
it got it one layer below cachedDao used to process the block.
2020-04-03 10:15:11 +03:00
Evgenii Stratonikov
f7f48d0048
vm: implement ISNULL opcode
2020-04-02 14:15:17 +03:00
Evgenii Stratonikov
3db030bbb6
vm: implement PUSHNULL opcode
2020-04-02 14:15:17 +03:00
Evgenii Stratonikov
e50b529631
vm: implement Null item
2020-04-02 14:15:17 +03:00
Evgenii Stratonikov
6b7a57a66f
smartcontract: add Any type for parameter
...
It is used as a wildcard for default return type of a contract and
for a Null stack item.
2020-04-02 14:15:17 +03:00
Roman Khimov
f64aa201c7
Merge pull request #819 from nspcc-dev/fix/util160_marshalling
...
smartcontract: fix uint160 marshalling in smartcontract.Parameter
2020-04-01 22:04:30 +03:00
Anna Shaleva
5a62eb923e
smartcontract: fix uint160 marshalling in smartcontract.Parameter
...
There's a bug after #785 : smartcontract.Parameter of type hash160 should
be marshalled in LE (as default marshaller for uint160 does) instead of
BE, so fixed.
2020-04-01 20:48:46 +03:00
Roman Khimov
2d0ad30fcf
vm: rework Map with internal slice representation
...
Which makes iterating over map stable which is important for serialization and
and even fixes occasional test failures. We use the same ordering here as
NEO 3.0 uses, but it should also be fine for NEO 2.0 because it has no
defined order.
2020-04-01 19:33:53 +03:00
Roman Khimov
25201d480d
smartcontract: simplify Array JSON marshalling
2020-04-01 19:21:00 +03:00
Roman Khimov
3dbe549a61
smartcontract: store MapType Parameter as a slice of KV pairs
...
Fixes #809 .
Basically, there are three alternative approaches to fixing it:
* allowing both []byte and string for ByteArrayType value
minimal invasion into existing code, but ugly as hell and will probably
backfire at some point
* storing string values in ByteArrayType
incurs quite a number of type conversions (and associated data copying),
though note that these values are not changed usually, so dynamic
properties of []byte are almost irrelevant here
* storing only []byte values in ByteArrayType
makes it impossible to use them as map keys which can be solved in several
ways:
- via an interface (Marshalable)
which is good, but makes testing and comparing values in general harder,
because of keys mismatch
- using serialized Parameter as a key (in a string)
which will need some additional marshaling/unmarshaling
- converting MapType from map to a slice of key-value pairs
not a bad idea as we don't use this map as a map really, the type
itself is all about input/output for real VM types and this approach is
also a bit closer to JSON representation of the Map
2020-04-01 19:21:00 +03:00
Evgenii Stratonikov
a43c9b9246
compiler: calculate stack size more precisely
...
When calculating number of local variables, only
defining assignments (i.e. via `:=`) must be taken into account.
2020-04-01 17:36:19 +03:00
Roman Khimov
9b5dab57e8
Merge pull request #810 from nspcc-dev/refactor/config
...
config: move config.go out of config
2020-04-01 10:29:57 +03:00
Anna Shaleva
5a984fdf88
config: move config.go out of config/
...
closes #423
2020-03-31 17:55:59 +03:00
Anna Shaleva
a8fa9c9244
vm: add tests to stack_item.go
...
closes #199
2020-03-31 17:18:13 +03:00
Roman Khimov
e41853d0a4
Merge pull request #789 from nspcc-dev/fix/tx_specific_data_marshalling
...
rpc: fix marshalling of type-specific tx data
2020-03-30 16:10:25 +03:00
Anna Shaleva
9c09ad9c89
rpc: fix marshalling of type-specific tx data
...
closes #585
2020-03-30 15:48:50 +03:00
Roman Khimov
6f13455cc9
Merge pull request #800 from nspcc-dev/fix/slice
...
compiler: declare compoud types with var keyword
2020-03-30 00:14:59 +03:00
Roman Khimov
92bafffcd8
Merge pull request #805 from nspcc-dev/fix-rpc-invocation-json
...
rpc: fix stack field name for invocation results
2020-03-29 13:41:46 +03:00
Roman Khimov
237de73dec
Merge pull request #807 from nspcc-dev/optimize-memcached-persist
...
storage: optimize (*MemCachedStore).Persist for memory-backed ps
2020-03-29 13:41:21 +03:00
Roman Khimov
0d482ceb7f
Merge pull request #808 from nspcc-dev/fix-map-serialization
...
vm: make map serialization more compatible with C#
2020-03-29 13:40:52 +03:00
Roman Khimov
665bf78d11
vm: make map serialization more compatible with C#
...
C# pushes value and key to the stack of non-serialized items, so key gets
serialized first followed by value. Fixes #806 .
Notice though that neither IDictionary in C#, nor map in Go have elements
ordered, so we can easily get a difference in KV pairs order and it would be
impossible to fix.
2020-03-28 17:25:42 +03:00
Roman Khimov
4758de71ec
storage: optimize (*MemCachedStore).Persist for memory-backed ps
...
Most of the time it's persisted into the MemoryStore or MemCachedStore, when
that's the case there is no real need to go through the Batch mechanism as it
incurs multiple copies of the data.
Importing 1.5M mainnet blocks with verification turned off, before:
real 12m39,484s
user 20m48,300s
sys 2m25,022s
After:
real 11m15,053s
user 18m2,755s
sys 2m4,162s
So it's around 10% improvement which looks good enough.
2020-03-28 17:21:50 +03:00
Roman Khimov
2316e2c4a7
rpc: fix stack field name for invocation results
...
Follow C# implementation:
https://docs.neo.org/docs/en-us/reference/rpc/latest-version/api/invokefunction.html
2020-03-28 13:59:42 +03:00
Anna Shaleva
0be237beb6
rpc: fix double-pointer bugs in RPC Client
...
Fixed double-pointer bug in following methods:
- GetRawTransactionVerbose
- GetBlockVerbose
- GetBlockHeader
- GetTxOut
- ValidateAddress
2020-03-27 16:04:11 +03:00
Evgenii Stratonikov
3cbd138b67
compiler: allow to declare variables of struct type
...
Previously, struct variables were initialize with VM's nil value
which is of primitive type. Thus SETITEM used for struct's field
updating wasn't working.
2020-03-27 13:50:09 +03:00
Evgenii Stratonikov
6baed7a010
compiler: allow to declare slices of compound types
...
Previously this declarations were ignored which resulted
in runtime errors, because VM's nil is an element of primitive type
and can't be converted to an array.
2020-03-27 13:50:09 +03:00
Roman Khimov
c738975b7b
Merge pull request #803 from nspcc-dev/feature/appcall
...
emit: implement AppCallWithOperationAndArgs
2020-03-27 13:30:48 +03:00
Evgenii Stratonikov
db2dccf7cb
emit: implement AppCallWithOperationAndArgs
...
It is nice to have a typical task of calling contract method
with specific arguments incapsulated inside some function.
2020-03-27 11:05:36 +03:00
Evgenii Stratonikov
0036b3e52b
random: make use or random package in tests
...
Also implement Bytes/Fill routines for generating byte slices.
2020-03-27 10:27:46 +03:00
Evgenii Stratonikov
9abda40171
testserdes: implement helpers for encode/decode routines
...
Frequently one needs to check if struct serializes/deserializes
properly. This commit implements helpers for such cases including:
1. JSON
2. io.Serializable interface
2020-03-27 10:27:46 +03:00
Anna Shaleva
37cb60a0b5
compiler/interop: add missing methods to interop.Iterator
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Add Next() and Value() to interop.Iterator and corresponding syscalls to
compiler
2020-03-26 16:39:10 +03:00
Evgenii Stratonikov
f0b6f783aa
compiler: allow for loops with empty condition
2020-03-26 15:00:14 +03:00
Evgenii Stratonikov
4522eed1bb
vm: fix offset for CALLI opcode
...
It is different from other JMP* and +2 should be added to the parameter.
2020-03-26 13:09:55 +03:00
Roman Khimov
396c78c722
Merge pull request #793 from nspcc-dev/update/boltdb
...
go.mod: update boltdb to v1.3.4
Related to #771 .
2020-03-25 17:33:54 +03:00
Evgenii Stratonikov
4e92642dec
rpc: allow to unmarshal integer params from string
2020-03-25 17:23:13 +03:00
Evgenii Stratonikov
fcc4877f43
go.mod: update boltdb to v1.3.4
...
Also import lib as declared in it's go.mod:
via `go.etcd.io/bbolt`.
2020-03-25 17:07:54 +03:00
Evgenii Stratonikov
5f876aaeda
smartcontract: do not require pointer in MarshalYAML
...
It is a single byte anyway.
Now `contract init` works properly.
2020-03-25 16:26:39 +03:00
Evgenii Stratonikov
43495a49f4
rpc: reuse handlers map for prometheus metrics
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
57f37bc7a0
rpc: add metrics for invoke* RPCs
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
2ed417388b
rpc: unify RPC handlers
...
Move all of them to a map. This can make it easier
to add/remove RPC based on plugins and makes code less verbose.
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
8236217a01
rpc: make all handler have the same signature
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
6e801d33f0
rpc: make a separate handler for every RPC
...
Move getbestblockhash, getblockcount, getconnectioncount RPC.
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
969ed6e6e1
rpc: move getaccountstate/getunspents RPCs to a separate func
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
2ec5b9f08a
rpc: move getblock RPC to a separate func
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
e442ebdb69
rpc: move getblockhash RPC to a separate func
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
90fdde4018
rpc: move getversion RPC to a separate func
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
99d02d5de0
rpc: move getpeers RPC to a separate func
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
dfb4171e3c
rpc: move getrawmempool RPC to a separate func
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
4e25c9121b
rpc: move validateaddress RPC to a separate func
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
70eb0b175a
rpc: move getassetstate RPC to a separate func
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
9e6785bed9
rpc: unify counter metrics update
2020-03-25 15:25:12 +03:00
Evgenii Stratonikov
c992d6c518
core: reuse buffer in (*cacheddao).Persist()
...
When serializing multiple accounts, cost of a buffer grow
can become significant. This commit tries to amortize it by
reusing the same buffer in a single `Persist()` call.
2020-03-25 13:13:54 +03:00
Anna Shaleva
6998c5044b
rpc: add testing infrastructure to RPC client package
...
closes #716
NOTE: RPC client tests contain `serverResponse` json data fetched from examples
published in official C# JSON-RPC API v2.10.3 reference
(see https://docs.neo.org/docs/en-us/reference/rpc/latest-version/api.html )
2020-03-24 16:02:08 +03:00
Anna Shaleva
8e05bfe99c
rpc/crypto: fix validator field marshalling in getvalidators RPC server
...
Problem: wrong `PublicKey` field json marshalling of result.Validator
Solution: add marshaller to publickey (crypto)
2020-03-24 15:52:51 +03:00
Anna Shaleva
ca12c75b12
rpc: fix name of json nep5balance field
...
Problem: wrong json field name of result.NEP5Balances.Balances
(see for details:
https://github.com/neo-project/neo-modules/blob/master-2.x/RpcNep5Tracker/RpcNep5Tracker.cs#L295 )
Solution: rename field from `balances` to `balance` to be consistent with C# client
2020-03-24 14:55:20 +03:00
Anna Shaleva
4911837949
rpc: fix wrong script marshalling in getcontractstate RPC server
...
problem: `script` field of result.ContractState is marshalled as []byte
solution: add marshaller for result.ContractState
2020-03-24 14:55:20 +03:00
Anna Shaleva
79f7862496
rpc: fix blockheader marshalling in getblockheader RPC server
...
Problem: wrong json marshalling of `nextconsensus` field of
result.Header
Solution: change field type from util.uint160 to address string
2020-03-24 14:55:20 +03:00
Roman Khimov
751e79d480
Merge pull request #785 from nspcc-dev/feature/uint160_marshalling
...
util: JSONify uint160 using LE instead of BE
2020-03-24 12:41:07 +03:00
Evgenii Stratonikov
dc8fb13021
vm: make NewBigInteger accept int64
...
It is more correct upconvert to int64 if needed,
so precision is never lost.
2020-03-24 11:10:56 +03:00
Roman Khimov
5148b98f43
Merge pull request #773 from nspcc-dev/fix/bigint
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vm: use truncated division for Integers
2020-03-23 18:01:21 +03:00
Anna Shaleva
2187346158
rpc: fix json marshalling of result.AssetState
...
Modified result.AssetState:
- removed `FeeMode` and `FeeAddress` fields
- fixed json name of `ID` and `AssetType` fields
to be consistent with C# RPC server
2020-03-23 17:44:15 +03:00
Anna Shaleva
2001a40312
util: JSONify uint160 using LE instead of BE
...
closes #769
2020-03-23 17:38:58 +03:00
Evgenii Stratonikov
6ed2bd63b9
core: marshal AppExecResult.Stack as an array
...
Closes #782 .
2020-03-23 16:27:47 +03:00
Evgenii Stratonikov
6ac69d075e
smartcontract: implement io.Serializable for Parameter
2020-03-23 16:27:47 +03:00
Evgenii Stratonikov
0f17b9be1d
smartcontract: use int64 for Integer parameter value
2020-03-23 16:24:57 +03:00
Roman Khimov
b37c5939f8
Merge pull request #780 from nspcc-dev/fix/776
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vm: allow to push integer-like items to stack
2020-03-18 13:27:31 +03:00
Evgenii Stratonikov
954e8cdcf1
vm: allow to push integer-like items to stack
...
Perform automatic conversion of non-standard integer types to
int64 if possible.
Closes #776 .
2020-03-18 12:58:31 +03:00
Evgenii Stratonikov
9666e99a17
smartcontract: marshal Integer values to JSON-strings
...
It is done so in C# implementation, we better be
as compatible as possible.
Closes #770 .
2020-03-18 11:58:17 +03:00
Evgenii Stratonikov
1e7b47ec05
smartcontract: always use int64 for integers
...
It is good when internal representation is unique.
2020-03-18 11:58:17 +03:00
Roman Khimov
8400f0add2
mempool: gofmt -s
2020-03-17 16:47:51 +03:00
Evgenii Stratonikov
4b44190485
vm: use truncated division for Integers
...
When divisor is negative, the result is truncated towards
zero.
2020-03-17 15:45:56 +03:00
Evgenii Stratonikov
dfbb84ef38
rpc: support https
...
Allow to start TLS RPC server on a separate port.
Closes #702 .
2020-03-17 12:44:23 +03:00
Roman Khimov
ec76a0bf15
mempool: disallow more than one issue tx at once
...
Technically they could conflict for available asset amount, but as they're
very rare (and even can be considered obsolete) we can simplify this check.
2020-03-17 11:40:01 +03:00
Roman Khimov
d5d0479671
core: verify results of issue transaction
...
It shouldn't try to issue more tokens than there is available.
2020-03-17 11:40:01 +03:00
Roman Khimov
10601cb375
core: add issuer hashes into the verification list for Issue TX
...
As it should be done.
2020-03-17 11:40:00 +03:00
Roman Khimov
dca637d2d0
core: add owner hash to verified list for Register TX
...
As it should be done.
2020-03-17 11:37:02 +03:00
Roman Khimov
77a799f7d0
core: add missing state tx verifications
2020-03-16 20:14:59 +03:00
Roman Khimov
6ede65610d
core: add appropriate hashes to check for State TX
...
These checks are important for proper transaction verification.
2020-03-16 19:52:28 +03:00
Roman Khimov
a5e862c351
rpc/client: add TransferNEP5 method to easily transfer tokens
...
We have TransferAsset for regular tokens, so it'd be nice to have TransferNEP5
for NEP5 ones. Relates to #599 .
2020-03-16 17:52:32 +03:00
Evgenii Stratonikov
9a41ffb9fb
wallet: support token removal
...
Also add tests for Add/RemoveToken
2020-03-16 15:12:50 +03:00
Evgenii Stratonikov
03d0a6519a
wallet: support account removal
2020-03-16 15:12:50 +03:00
Evgenii Stratonikov
b193e78def
core: remove duplication from IsDoubleClaim/IsDoubleSpend
2020-03-16 14:11:19 +03:00
Evgenii Stratonikov
cdf025bf89
transaction: implement AddVerificationHash() method
2020-03-16 14:11:19 +03:00
Roman Khimov
e9429374aa
Merge pull request #756 from nspcc-dev/feature/unclaimed
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core/state: do not unmarshal Unclaimed balances in account
2020-03-16 13:21:23 +03:00
Roman Khimov
cff6e226dd
Merge pull request #760 from nspcc-dev/fix-contract-storage-migration
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core: fix contract's state migration and don't swallow errors
2020-03-16 12:25:15 +03:00
Evgenii Stratonikov
e503d1001d
core/state: do not unmarshal Unclaimed balances in account
2020-03-16 12:19:32 +03:00
Roman Khimov
e6e8761d35
core: fix contract's state migration and don't swallow errors
...
Fixes difference in state changes at mainnet's block 2442790 because contract
migration in b4eb2dc35226e6520ee4e09a56197dff91547b50a7f57edc82930fc18c75dffc
doesn't actually transfer the storage state, it only deletes the old one.
And add an error check just in case.
2020-03-16 11:52:09 +03:00
Evgenii Stratonikov
66727ab8fa
rpc: marshal Asset hash in LE in getnep5balances RPC
2020-03-16 10:14:55 +03:00
Roman Khimov
ba1c3bfccb
Merge pull request #758 from nspcc-dev/rpc-fix-hash160
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rpc: fix invocations of contracts using hash160
2020-03-13 16:50:31 +03:00
Roman Khimov
c8f4eee5f4
rpc: fix invocations of contracts using hash160
...
ERROR Error encountered with rpc request {"error": "expected string size of 40 got 42",...
2020-03-13 16:47:08 +03:00
Anna Shaleva
784bac0b38
rpc: bug with empty stack marshalling in getapplicationlog
...
Problem: cannot marshall empty raw message from appExecResult.Stack
Solution: add handler for case when appExecResult.Stack is an empty string
2020-03-13 12:50:51 +03:00
Roman Khimov
d9a83373ed
Merge pull request #748 from nspcc-dev/feature/splitnep5
...
core: store NEP5 balances separately from account
2020-03-12 18:31:25 +03:00
Evgenii Stratonikov
ac475940a0
core: cache NEP5Transfers in cached DAO
2020-03-12 17:16:11 +03:00
Evgenii Stratonikov
6fa2a998f4
core: cache NEP5Balances in cached DAO
2020-03-12 17:06:20 +03:00
Roman Khimov
734778c1f9
Merge pull request #747 from nspcc-dev/fix-contract-deploy-gas-parameter
...
Use wallet in smartcontract deploy/invoke commands and calculate GAS properly
2020-03-12 17:00:04 +03:00
Roman Khimov
25da5a30d8
cli: change deploy and invoke commands to use wallet
...
Passing WIF directly in the command line is not something we should be doing.
Also split netfee and sysfee in the RPC as they're different (and add a script
attribute for free transactions).
2020-03-12 16:19:12 +03:00
Anna Shaleva
307b3b162b
rpc: implement missing RPC client methods
...
Implemented following RPC client methods:
- getapplicationlog
- getassetstate
- getbestblockhash
- getblockcount
- getblockhash
- getblockheader
- getblocksysfee
- getconnectioncount
- getcontractstate
- getpeers
- getrawmempool
- getstorage
- gettransactionheight
- gettxout
- getunclaimed
- getvalidators
- getversion
- submitblock
- validateaddress
2020-03-12 15:56:59 +03:00
Evgenii Stratonikov
6e0a57075f
*: gofmt
2020-03-12 14:51:13 +03:00
Evgenii Stratonikov
32401a567e
core: store NEP5Transfers in batches
...
This is an append-only log which is read only during some RPCs.
It is rather slow to get it from base every time we need to append to
it. This commit stores all NEP5Transfers in batches, so that
only a last batch needs to be unmarshaled during block processing.
2020-03-12 14:51:12 +03:00
Evgenii Stratonikov
3c6d9653b0
core/state: add Size() method to NEP5TransferLog
2020-03-12 12:58:30 +03:00
Evgenii Stratonikov
df2598c8dc
core: store NEP5 balances separately
...
There is no need to take and unmarshal an account structure only
to get it's NEP5 balances.
2020-03-12 12:58:28 +03:00
Evgenii Stratonikov
d25dddc780
rpc: refactor getDecimals
...
Use existing functions to invoke smartcontract's
method instead of constructing ad-hoc script.
2020-03-12 12:19:31 +03:00
Evgenii Stratonikov
05544a1510
rpc: return empty arrays instead of null in getnep5* RPCs
2020-03-12 12:19:30 +03:00
Roman Khimov
1b5dd53e07
Merge pull request #746 from nspcc-dev/fix/equal
...
vm: implement EQUAL opcode properly
Fixes #745 , #749 .
2020-03-12 11:46:51 +03:00
Roman Khimov
bbd802681e
cli: make gas parameter to deployment add gas to the base price
...
That's how it was intended to behave originally. One thing questionable here
is contract price (policy thing, basically) being moved to smartcontract
package, but it's probably fine for NEO 2.0 (as it won't change) and we'll
make something better for NEO 3.0.
2020-03-11 20:34:36 +03:00
Roman Khimov
695c4dd6ae
Merge pull request #744 from nspcc-dev/feature/getunclaimed
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rpc: implement getunclaimed
2020-03-11 19:18:36 +03:00
Anna Shaleva
c23a522d25
rpc: implement getunclaimed
...
closes #712
2020-03-11 18:33:15 +03:00
Roman Khimov
5f1868af28
Merge pull request #743 from nspcc-dev/optimize-some-db-accesses
...
Optimize some db accesses
2020-03-11 17:33:36 +03:00
Roman Khimov
abd7855890
Merge pull request #742 from nspcc-dev/add-dynamic-appcall
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vm: add support for dynamic invocations in APPCALL
2020-03-11 17:27:05 +03:00
Evgenii Stratonikov
dfc59129c7
vm: implement EQUAL opcode properly
...
When comparing elements of different types, conversions
should be performed. This commit implement custom equality
predicate for each stack item type.
2020-03-11 17:19:10 +03:00
Evgenii Stratonikov
5da82e8cf0
vm: add TryBytes() to StackItem interface
...
Conversion should be done in a StackItem, not in an Element.
2020-03-11 16:33:46 +03:00
Roman Khimov
8c902a7223
core: cache UnspentCoins in cachedDao
...
1.5M block import time (VerifyBlocks disabled) on AMD Ryzen 5 1600/16GB/HDD,
before:
real 159m16.551s
user 69m58.279s
sys 7m34.334s
after:
real 139m41.836s
user 67m12.477s
sys 6m19.420s
12% which is even a bit more than could be expected from inputs analysis (that
has around 10% cache hits for a block-wide cache), worth doing.
2020-03-11 12:40:02 +03:00
Roman Khimov
23464401bc
core/state: merge spent and unspent coins state, use it to store more things
...
This change reduces pressure on DB by doing the following things:
* not storing additional KV pair for SpentCoin
* storing Output right in the UnspentCoin, thus eliminating the need to get a
full transaction from DB
At the same time it makes UnspentCoin more fat and hot, but it should probably
worth it.
Also drop `GetUnspentCoinStateOrNew` as it shouldn't ever existed, UTXOs
can't come out of nowhere.
1.5M block import time (VerifyBlocks disabled) on AMD Ryzen 5 1600/16GB/HDD,
before:
real 302m9.895s
user 96m17.200s
sys 13m37.084s
after:
real 159m16.551s
user 69m58.279s
sys 7m34.334s
So it's almost two-fold which is a great improvement.
2020-03-11 12:40:02 +03:00
Roman Khimov
e1f194ea7b
core: treat state.Coin as a bitfield
...
As it was intended to.
2020-03-11 12:22:57 +03:00
Roman Khimov
377fb382aa
core: move (un)SpentCoin structs into the state package
...
As they're all about the state.
2020-03-11 12:22:52 +03:00
Roman Khimov
aab7dd515f
Merge pull request #728 from nspcc-dev/feature/nep5cli
...
cli: implement NEP5-related commands
2020-03-10 18:10:00 +03:00
Roman Khimov
b7fa8dd40f
Merge pull request #741 from nspcc-dev/fix/network
...
network: fix possible deadlock in DefaultDiscovery
2020-03-10 17:29:45 +03:00
Roman Khimov
8318adac56
vm: add support for dynamic invocations in APPCALL
...
Fixes #740 .
2020-03-10 17:17:36 +03:00
Evgenii Stratonikov
b7dee156e2
network: fix a deadlock in DefaultDiscovery
...
Why a deadlock can occur:
1. (*DefaultDiscovery).run() has a for loop over requestCh channel.
2. (*DefaultDiscovery).RequestRemote() send to this channel while
holding a mutex.
3. (*DefaultDiscovery).RegisterBadAddr() tries to take mutex for write.
4. Second select-case can't take mutex for read because of (3).
2020-03-10 15:40:23 +03:00