This error message makes no sense when shutting down the server:
2020-06-25T19:29:53.251+0300 ERROR failed to start RPC server {"error": "http: Server closed"}
And ListenAndServer is documented to always return non-nil error one of which
is http.ErrServerClosed. This should also fix the following test failure:
==================
WARNING: DATA RACE
Read at 0x00c000254243 by goroutine 49:
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).Error()
/go/pkg/mod/go.uber.org/zap@v1.10.0/logger.go:203 +0x95
github.com/nspcc-dev/neo-go/pkg/rpc/server.(*Server).Start()
/go/src/github.com/nspcc-dev/neo-go/pkg/rpc/server/server.go:179 +0x5c5
Previous write at 0x00c000254243 by goroutine 44:
testing.tRunner.func1()
/usr/local/go/src/testing/testing.go:900 +0x353
testing.tRunner()
/usr/local/go/src/testing/testing.go:913 +0x1bb
Goroutine 49 (running) created at:
github.com/nspcc-dev/neo-go/pkg/rpc/server.initClearServerWithInMemoryChain()
/go/src/github.com/nspcc-dev/neo-go/pkg/rpc/server/server_helper_test.go:69 +0x305
github.com/nspcc-dev/neo-go/pkg/rpc/server.initServerWithInMemoryChain()
/go/src/github.com/nspcc-dev/neo-go/pkg/rpc/server/server_helper_test.go:78 +0x3c
github.com/nspcc-dev/neo-go/pkg/rpc/server.testRPCProtocol()
/go/src/github.com/nspcc-dev/neo-go/pkg/rpc/server/server_test.go:805 +0x53
github.com/nspcc-dev/neo-go/pkg/rpc/server.TestRPC.func1()
/go/src/github.com/nspcc-dev/neo-go/pkg/rpc/server/server_test.go:793 +0x44
testing.tRunner()
/usr/local/go/src/testing/testing.go:909 +0x199
Goroutine 44 (finished) created at:
testing.(*T).Run()
/usr/local/go/src/testing/testing.go:960 +0x651
github.com/nspcc-dev/neo-go/pkg/rpc/server.TestRPC()
/go/src/github.com/nspcc-dev/neo-go/pkg/rpc/server/server_test.go:792 +0x5d
testing.tRunner()
/usr/local/go/src/testing/testing.go:909 +0x199
==================
ValidatorsCount is not initialized at block 0 with C# node (the first voter
initializes it) and until that initialization happens the standby validators
list is being returned as is without sorting.
Fixes state mismatch for the key ffffffff0e00000000000000000000000000000001 in
the first blocks.
It also affects tests as now the first validator is different and it receives
the network fees.
There is no such thing as high/low priority transactions, as there are
no free transactions anymore and they are ordered by fees contained
in transaction itself.
Closes#1063.
It's just JSON, io.Serializable is only used for DB storage where the length
should be obtained from the stream. Fixes:
2020-06-18T22:14:10.571+0300 WARN contract invocation failed {"tx": "1ffd475a9c246495d6206cb80a9a78e9d14a433ded60cd37aa87d897655606e1", "block": 25893, "error": "error encountered at instruction 3696 (SYSCALL): failed to invoke syscall: invalid character ':' after top-level value"}
We make it explicit in the appropriate Block/Transaction structures, not via a
singleton as C# node does. I think this approach has a bit more potential and
allows better packages reuse for different purposes.
It doesn't affect anything yet, but it's going to be used in the future for
network-specific behavior. It also renames short '--timeout' form to '-s'
avoiding conlict with '-t' used for '--testnet'.
1. Remove GetScript, IsPayable, GetStorageContext.
2. Revert 82319538 related to GetStorageContext.
3. Rename Migrate to Update.
4. Move remaining to System.Contract.*.
Related #1031.
Two changes being done here, because they require a lot of updates to
tests. Now we're back into version 0 and we only have one type of
transaction.
It also removes GetType and GetScript interops, both are obsolete in Neo 3.
Our block.Block was JSONized in a bit different fashion than result.Block in
its NextConsensus and Index fields. It's not good for notifications because
third-party clients would probably expect to see the same format. Also, using
completely different Block representation is probably making our client a bit
weaker as this representation is harder to use with other neo-go components.
So use the same approach we took for Transactions and wrap block.Block which is
to be serialized in proper way.
Fix `Script` JSONization along the way, 3.0 node wraps it within `witnesses`.
Note that the protocol differs a bit from #895 in its notifications format,
to avoid additional server-side processing we're omitting some metadata like:
* block size and confirmations
* transaction fees, confirmations, block hash and timestamp
* application execution doesn't have ScriptHash populated
Some block fields may also differ in encoding compared to `getblock` results
(like nonce field).
I think these differences are unnoticieable for most use cases, so we can
leave them as is, but it can be changed in the future.
It will be important for proper subscription testing and it doesn't hurt even
though technically we've got two http servers listening after this change (one
is a regular Server's http.Server and one is httptest's Server). Reusing
rpc.Server would be nice, but it requires some changes to Start sequence to
start Listener with net.Listen and then communicate back its resulting
Addr. It's not very convenient especially given that no other code needs it,
so doing these changes just for a bit cleaner testing seems like and
overkill.
Update config appropriately. Update Start comment along the way.
1. Slot is a new mechanism for storing variables during execution
which is more convenient than alt.stack. This commit implements
support for slot opcodes in both vm and compiler.
2. Remove old alt.stack opcodes.
3. Do not process globals at the start of every function, but instead
load them single time at main.
Rename THROWIFNOT to ASSERT, add ABORT opcode.
ABORT cannot be caught, but the implementation should be postponed until
exception handling is implemented.
The original intention here was to check for server reaction in presence of
validation errors (response.ErrValidationFailed) and it was very easy to make
validation fail for block without transactions in Neo 2. But in Neo 3
transactionless blocks are perfectly valid (see
29d321b5e1) which broke this test even though we
didn't see it until websocket addition (which required
8cec6694ae to make this test work initially).
So make a valid block and then spoil its verification script.
