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859 commits

Author SHA1 Message Date
Evgenii Stratonikov
7053b3b2c0 compiler: optimize append argument processing 
Append should leave it's result on top of the stack.
Thus we need to transform top of the stack:
(top) a . b --> (top) a . b . b
It can be done with just OVER + SWAP.
 2020-01-29 12:28:38 +03:00
Evgenii Stratonikov
b6629fb6bd compiler: refactor argument handling for builtins 
It is more convenient to have all unusual logic in one place.
 2020-01-29 12:28:38 +03:00
Evgenii Stratonikov
d2326a8b96 compiler: support panic in source 
In situations where VM's FAULT state needs to be reached,
panic function can be used. It compiles to THROW instruction.
 2020-01-29 12:28:38 +03:00
Evgenii Stratonikov
e0f47decc7 compiler: replace ROLL(2) with equivalent ROT 2020-01-29 09:56:16 +03:00
Evgenii Stratonikov
28571bd3dc compiler: implement switch statement support 2020-01-29 09:56:16 +03:00
Roman Khimov
0ce0ecb95e
Merge pull request #624 from nspcc-dev/feature/bigint 
compiler: emit integers correctly
 2020-01-28 18:04:32 +03:00
Roman Khimov
ab03aee2cf
Merge pull request #627 from nspcc-dev/fix-getdata-and-pings 
Fix getdata and pings
 2020-01-28 17:43:13 +03:00
Roman Khimov
06c3fbe455 network: rework ping sends, fix overpinging 
Our node was too pingy because of wrong timer setups (that divided timeout
Duration by time.Second), it also was wrong in its time calculations (using
UTC time to calculate intervals). At the same time missing block is a
server-wide problem, so it's better solved with server-wide protocol loop.
 2020-01-28 17:39:52 +03:00
Roman Khimov
39800aecb3 network: fix getdata handling 
It was broken by 0ba6b2a7, the peer only responded with one message instead of
full requested set.
 2020-01-28 17:39:52 +03:00
Evgenii Stratonikov
d190b3a2e0 compiler: emit integers correctly 
A while ago VM serialization format for Integer items was changed
but compiler continued to emit Integers in old format.
This commit changes compiler behaviour to be compatible with VM.
 2020-01-28 16:39:19 +03:00
Evgenii Stratonikov
f15ceff592 vm: make IntToBytes, BytesToInt public 
VM serialization format should be able to be reused.
 2020-01-28 16:39:19 +03:00
Evgenii Stratonikov
77f9a2ee26 compiler: convert AppCall parameter from string properly 2020-01-27 15:34:03 +03:00
Evgenii Stratonikov
d65d6ab08d compiler: allow to convert string constants to []byte 
Also load constant directly into stack, not by name.
 2020-01-27 15:29:52 +03:00
Evgenii Stratonikov
097d35b9d5 compiler: fix a bug with FromAddress handling 
Conversion of string to address with FromAddress is performed
at compile time so there is no need to push parameters on stack.
 2020-01-27 13:14:40 +03:00
Evgenii Stratonikov
330db36168 compiler: implement engine.AppCall interop 2020-01-27 13:14:36 +03:00
Evgenii Stratonikov
4fd766fe09 compiler: allow usage of string literals in index expressions 2020-01-23 17:28:35 +03:00
Evgenii Stratonikov
058958729d compiler: support map literals 2020-01-23 17:06:15 +03:00
Evgenii Stratonikov
def73db8e9 compiler: support variables in slice literals 2020-01-23 15:51:16 +03:00
Evgeniy Kulikov
eb59460032
Merge pull request #614 from nspcc-dev/configurable-mempool-size 
config: add MemPoolSize configuration parameter
 2020-01-23 13:25:27 +03:00
Roman Khimov
67fe99b0ba
Merge pull request #618 from nspcc-dev/feature/for 
compiler: support for loops with no init/post condition
 2020-01-23 13:19:55 +03:00
Roman Khimov
04db87c770
Merge pull request #617 from nspcc-dev/feature/checksig 
compiler: implement ECDSA signature verification
 2020-01-23 13:18:21 +03:00
Roman Khimov
9aa5d0cf1e
Merge pull request #615 from nspcc-dev/network-peer-updates 
Network peer updates
 2020-01-23 13:15:43 +03:00
Roman Khimov
d6784e8f45 config: add MemPoolSize configuration parameter 
Allow tuning/experimenting with mempool.
 2020-01-23 13:10:44 +03:00
Evgenii Stratonikov
328267ca6f compiler: support for loops with no init/post condition 
Make it possible to use `for` loop with a single condition.
 2020-01-23 11:48:43 +03:00
Evgenii Stratonikov
bd37359393 compiler: implement ECDSA signature verification 
Add VerifySignature interop for signature verification.
It is converted to VERIFY opcode.
 2020-01-23 10:56:15 +03:00
Evgenii Stratonikov
303b82cc44 core: set free GAS limit via config 2020-01-22 14:32:21 +03:00
Evgenii Stratonikov
54e0b5a4a7 rpc: set MaxGasInvoke in config 
Implement ability to restrict maximum amount of GAS
available for free RPC calls.
 2020-01-22 14:31:57 +03:00
Evgenii Stratonikov
4718375db1 rpc: return amount of consumed GAS in invoke* 2020-01-22 14:31:57 +03:00
Evgenii Stratonikov
2f865480d3 util: add YAML marshaler to Fixed8 2020-01-22 14:31:57 +03:00
Evgenii Stratonikov
7a6d6f43ce vm: get rid of recursive (*VM).execute calls 
Recursive execute() calls can affect gas calculation.
This commit makes execute() be called only for real opcodes
and moves duplicate logic for CALL/JMP into a separate function.
 2020-01-22 14:31:57 +03:00
Evgenii Stratonikov
4eae55143f core: restrict GAS available for invocation transactions 
There are 10 GAS available for free plus any amount of GAS
attached to a transaction.
 2020-01-22 14:31:54 +03:00
Evgenii Stratonikov
d72d978a19 vm: abstract out GetInterop() function 2020-01-22 14:04:40 +03:00
Evgenii Stratonikov
c22d09adad vm: set GAS limit 
Make it possible to set maximum amount of GAS which can be spent
during execution.
 2020-01-22 14:04:40 +03:00
Evgenii Stratonikov
0662a7e3c2 vm: calculate GAS spent during execution 
If getPrice callback is provided, accumulate spent GAS.
 2020-01-22 14:04:40 +03:00
Roman Khimov
99dfdc19e7 network: drop now useless addrReq queue from the server 
Just broadcast a high-priority message to everyone.
 2020-01-22 11:28:59 +03:00
Roman Khimov
ea3b76ded1 network: make NewServer return an error, fix #612 
It can return nil in two cases, so we're better return an error and handle
it.
 2020-01-22 11:17:51 +03:00
Roman Khimov
f2ffffddb7 network: rework broadcasting functions, tune priorities 
This gives more priority to anything related to consensus.
 2020-01-22 11:01:13 +03:00
Roman Khimov
34b863d645 network: introduce Server's MkMsg() 
That wraps NewMessage() for a configured network.
 2020-01-21 17:31:51 +03:00
Roman Khimov
1f672e0da7 network: move SendVersion() to the Peer 
Only leave server-specific `getVersionMsg()` in the Server, all the other
logic is peer-related.
 2020-01-21 17:26:08 +03:00
Roman Khimov
9befd8de99
Merge pull request #610 from nspcc-dev/ping-improvements 
Ping improvements
 2020-01-21 13:34:15 +03:00
Roman Khimov
760b39e324 consensus: close chain in tests 
Avoid test failures like this one:

=== RUN   TestService_OnPayload
==================
WARNING: DATA RACE
Read at 0x00c00015a843 by goroutine 112:
  testing.(*common).logDepth()
      /usr/local/go/src/testing/testing.go:665 +0xa1
  testing.(*common).Logf()
      /usr/local/go/src/testing/testing.go:658 +0x8f
  testing.(*T).Logf()
      <autogenerated>:1 +0x75
  go.uber.org/zap/zaptest.testingWriter.Write()
      /go/pkg/mod/go.uber.org/zap@v1.10.0/zaptest/logger.go:130 +0x11f
  go.uber.org/zap/zaptest.(*testingWriter).Write()
      <autogenerated>:1 +0xa9
  go.uber.org/zap/zapcore.(*ioCore).Write()
      /go/pkg/mod/go.uber.org/zap@v1.10.0/zapcore/core.go:90 +0x1c3
  go.uber.org/zap/zapcore.(*CheckedEntry).Write()
      /go/pkg/mod/go.uber.org/zap@v1.10.0/zapcore/entry.go:215 +0x1e7
  go.uber.org/zap.(*Logger).Info()
      /go/pkg/mod/go.uber.org/zap@v1.10.0/logger.go:187 +0x95
  github.com/CityOfZion/neo-go/pkg/core.(*Blockchain).persist()
      /go/src/github.com/CityOfZion/neo-go/pkg/core/blockchain.go:720 +0x6bb
  github.com/CityOfZion/neo-go/pkg/core.(*Blockchain).Run.func2()
      /go/src/github.com/CityOfZion/neo-go/pkg/core/blockchain.go:228 +0x53

Previous write at 0x00c00015a843 by goroutine 98:
  testing.tRunner.func1()
      /usr/local/go/src/testing/testing.go:900 +0x353
  testing.tRunner()
      /usr/local/go/src/testing/testing.go:913 +0x1bb

Goroutine 112 (running) created at:
  github.com/CityOfZion/neo-go/pkg/core.(*Blockchain).Run()
      /go/src/github.com/CityOfZion/neo-go/pkg/core/blockchain.go:227 +0x264

Goroutine 98 (finished) created at:
  testing.(*T).Run()
      /usr/local/go/src/testing/testing.go:960 +0x651
  testing.runTests.func1()
      /usr/local/go/src/testing/testing.go:1202 +0xa6
  testing.tRunner()
      /usr/local/go/src/testing/testing.go:909 +0x199
  testing.runTests()
      /usr/local/go/src/testing/testing.go:1200 +0x521
  testing.(*M).Run()
      /usr/local/go/src/testing/testing.go:1117 +0x2ff
  main.main()
      _testmain.go:162 +0x337
==================
--- FAIL: TestService_OnPayload (4.11s)
 2020-01-20 19:40:52 +03:00
Roman Khimov
f56383e9c8 network: use p.LastBlockIndex() in requestBlocks() 
Always compare to the best known block index, comparing to the StartHeight is
just plain wrong now.
 2020-01-20 19:37:17 +03:00
Roman Khimov
2c4ace022e network/config: redesign ping timeout handling a bit 
1) Make timeout a timeout, don't do magic ping counts.
2) Drop additional timer from the main peer's protocol loop, create it
   dynamically and make it disconnect the peer.
3) Don't expose the ping counter to the outside, handle more logic inside the
   Peer.

Relates to #430.
 2020-01-20 19:37:17 +03:00
Roman Khimov
62092c703d network: use local timestamp to decide when to ping 
We don't and we won't have synchronized clocks in the network so the only
timestamp that we can compare our local time with is the one made
ourselves. What this ping mechanism is used for is to recover from missing the
block broadcast, thus it's appropriate for it to trigger after X seconds of
the local time since the last block received.

Relates to #430.
 2020-01-20 19:37:17 +03:00
Roman Khimov
a8252ecc05 network: remove wrong ping condition 
In reality it will never be true exactly in the case where we want this ping
mechanism to work --- when the node failed to get a block from the net. It
won't get the header either and thus its block height will be equal to header
height. The only moment when this condition is met is when the node does
initial synchronization and this synchronization works just fine without any
pings.

Relates to #430.
 2020-01-20 19:37:17 +03:00
Roman Khimov
247cfa4165 network: either request blocks or ping a peer, but not both 
It makes to sense to do both actions, pings are made for a different purpose.

Relates to #430.
 2020-01-20 19:37:17 +03:00
Roman Khimov
0ba6b2a754 network: introduce peer sending queues 
Two queues for high-priority and ordinary messages. Fixes #590. These queues
are deliberately made small to avoid buffer bloat problem, there is gonna be
another queueing layer above them to compensate for that. The queues are
designed to be synchronous in enqueueing, async capabilities are to be added
layer above later.
 2020-01-20 17:23:26 +03:00
Roman Khimov
7f0882767c network: remove useless Done() method from the peer 
It's internal state of the peer that no one should care about.
 2020-01-20 17:23:26 +03:00
Roman Khimov
f39d5d5a10 network: fix unregistration on peer Disconnect 
It should always signal to the server, not duplicating this send and not
missing it like it happened in the Server.run().
 2020-01-20 17:23:26 +03:00
Roman Khimov
907a236285 network: move per-peer goroutines into the TCPPeer 
As they're directly tied to it.
 2020-01-20 17:23:26 +03:00