Problem:
```
--- FAIL: TestDumpDB (0.08s)
--- FAIL: TestDumpDB/too_low_chain
testing.go:894: TempDir RemoveAll cleanup: remove C:\Users\Anna\AppData\Local\Temp\TestDumpDB_too_low_chain357310492\001\chains\privnet\000001.log: The process cannot access the file because it is being used by another process.
```
Solution:
Release resources occupied by the chain even on non-error command exit.
Problem:
```
--- FAIL: TestHandleLoggingParams (0.02s)
--- FAIL: TestHandleLoggingParams/default (0.00s)
server_test.go:51:
Error Trace: server_test.go:51
Error: Received unexpected error:
couldn't open sink "C:\\Users\\Anna\\AppData\\Local\\Temp\\TestHandleLoggingParams226652490\\001/file.log": no sink found for scheme "c"
Test: TestHandleLoggingParams/default
--- FAIL: TestHandleLoggingParams/debug (0.00s)
server_test.go:64:
Error Trace: server_test.go:64
Error: Received unexpected error:
couldn't open sink "C:\\Users\\Anna\\AppData\\Local\\Temp\\TestHandleLoggingParams226652490\\001/file.log": no sink found for scheme "c"
Test: TestHandleLoggingParams/debug
```
Solution:
Currently no solution is implemented, but we can use relative paths instead of absolute.
We use 2 prefixes for storing items because of state synchronization.
This commit allows to parametrize dao with the default prefix.
Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
1. Initialization is performed via `Blockchain` methods.
2. Native Oracle contract updates list of oracle nodes
and in-fly requests in `PostPersist`.
3. RPC uses Oracle module directly.
If port is dynamically allocated, `(*Server).Addr` will contain
0 port. This commit executes listener before exiting from `Start()`
and sets Addr to the actual address.
It's not needed any more with Go 1.13 as we have wrapping/unwrapping in base
packages. All errors.Wrap calls are replaced with fmt.Errorf, some strings are
improved along the way.
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.
Given `-s 1` with a dump of 6001 blocks it skipped the first one and then
tried to import the next 6001 which failed with EOF because there are only
6000 blocks left.
NGD dumps are all zero-based and even though I don't like it (genesys block
should not be imported, it's the root of chain trust), we have to conform to
this convention for interoperability with C# nodes (otherwise they're not able
to import our dumps).
This also renames `skip` dumper parameter to `start` which is more logical
now, the default is to start the dump from block number zero.
