This fixes a rare deadlock with the inproc adapter:
- A node is stopped, which acquires Network.lock.
- The protocol code being simulated (swarm/network in my case)
waits for its goroutines to shut down.
- One of those goroutines calls into the simulation to add a peer,
which waits for Network.lock.
The fix for the deadlock is really simple, just release the lock
before stopping the simulation node.
Other changes in this PR clean up the exec adapter so it reports
node startup errors better and remove the docker adapter because
it just adds overhead.
In the exec adapter, node information is now posted to a one-shot
server. This avoids log parsing and allows reporting startup
errors to the simulation host.
A small change in package node was needed because simulation
nodes use port zero. Node.{HTTP,WS}Endpoint now return the live
endpoints after startup by checking the TCP listener.
- Mime types generator (Standard "mime" package rely on system-settings, see mime.osInitMime)
- Changed swarm/api.Upload:
- simplify I/O throttling by semaphore primitive and use file name where possible
- f.Close() must be called in Defer - otherwise panic or future added early return will cause leak of file descriptors
- one error was suppressed
* swarm/storage/mru: Adaptive Frequency
swarm/storage/mru/lookup: fixed getBaseTime
Added NewEpoch constructor
swarm/api/client: better error handling in GetResource()
swarm/storage/mru: Renamed structures.
Renamed ResourceMetadata to ResourceID.
Renamed ResourceID.Name to ResourceID.Topic
swarm/storage/mru: Added binarySerializer interface and test tools
swarm/storage/mru/lookup: Changed base time to time and + marshallers
swarm/storage/mru: Added ResourceID (former resourceMetadata)
swarm/storage/mru: Added ResourceViewId and serialization tests
swarm/storage/mru/lookup: fixed epoch unmarshaller. Added Epoch Equals
swarm/storage/mru: Fixes as per review comments
cmd/swarm: reworded resource create/update help text regarding topic
swarm/storage/mru: Added UpdateLookup and serializer tests
swarm/storage/mru: Added UpdateHeader, serializers and tests
swarm/storage/mru: changed UpdateAddr / epoch to Base()
swarm/storage/mru: Added resourceUpdate serializer and tests
swarm/storage/mru: Added SignedResourceUpdate tests and serializers
swarm/storage/mru/lookup: fixed GetFirstEpoch bug
swarm/storage/mru: refactor, comments, cleanup
Also added tests for Topic
swarm/storage/mru: handler tests pass
swarm/storage/mru: all resource package tests pass
swarm/storage/mru: resource test pass after adding
timestamp checking support
swarm/storage/mru: Added JSON serializers to ResourceIDView structures
swarm/storage/mru: Sever, client, API test pass
swarm/storage/mru: server test pass
swarm/storage/mru: Added topic length check
swarm/storage/mru: removed some literals,
improved "previous lookup" test case
swarm/storage/mru: some fixes and comments as per review
swarm/storage/mru: first working version without metadata chunk
swarm/storage/mru: Various fixes as per review
swarm/storage/mru: client test pass
swarm/storage/mru: resource query strings and manifest-less queries
swarm/storage/mru: simplify naming
swarm/storage/mru: first autofreq working version
swarm/storage/mru: renamed ToValues to AppendValues
swarm/resource/mru: Added ToValues / FromValues for URL query strings
swarm/storage/mru: Changed POST resource to work with query strings.
No more JSON.
swarm/storage/mru: removed resourceid
swarm/storage/mru: Opened up structures
swarm/storage/mru: Merged Request and SignedResourceUpdate
swarm/storage/mru: removed initial data from CLI resource create
swarm/storage/mru: Refactor Topic as a direct fixed-length array
swarm/storage/mru/lookup: Comprehensive GetNextLevel tests
swarm/storage/mru: Added comments
Added length checks in Topic
swarm/storage/mru: fixes in tests and some code comments
swarm/storage/mru/lookup: new optimized lookup algorithm
swarm/api: moved getResourceView to api out of server
swarm/storage/mru: Lookup algorithm working
swarm/storage/mru: comments and renamed NewLookupParams
Deleted commented code
swarm/storage/mru/lookup: renamed Epoch.LaterThan to After
swarm/storage/mru/lookup: Comments and tidying naming
swarm/storage/mru: fix lookup algorithm
swarm/storage/mru: exposed lookup hint
removed updateheader
swarm/storage/mru/lookup: changed GetNextEpoch for initial values
swarm/storage/mru: resource tests pass
swarm/storage/mru: valueSerializer interface and tests
swarm/storage/mru/lookup: Comments, improvements, fixes, more tests
swarm/storage/mru: renamed UpdateLookup to ID, LookupParams to Query
swarm/storage/mru: renamed query receiver var
swarm/cmd: MRU CLI tests
* cmd/swarm: remove rogue fmt
* swarm/storage/mru: Add version / header for future use
* swarm/storage/mru: Fixes/comments as per review
cmd/swarm: remove rogue fmt
swarm/storage/mru: Add version / header for future use-
* swarm/storage/mru: fix linter errors
* cmd/swarm: Speeded up TestCLIResourceUpdate
Package p2p/enode provides a generalized representation of p2p nodes
which can contain arbitrary information in key/value pairs. It is also
the new home for the node database. The "v4" identity scheme is also
moved here from p2p/enr to remove the dependency on Ethereum crypto from
that package.
Record signature handling is changed significantly. The identity scheme
registry is removed and acceptable schemes must be passed to any method
that needs identity. This means records must now be validated explicitly
after decoding.
The enode API is designed to make signature handling easy and safe: most
APIs around the codebase work with enode.Node, which is a wrapper around
a valid record. Going from enr.Record to enode.Node requires a valid
signature.
* p2p/discover: port to p2p/enode
This ports the discovery code to the new node representation in
p2p/enode. The wire protocol is unchanged, this can be considered a
refactoring change. The Kademlia table can now deal with nodes using an
arbitrary identity scheme. This requires a few incompatible API changes:
- Table.Lookup is not available anymore. It used to take a public key
as argument because v4 protocol requires one. Its replacement is
LookupRandom.
- Table.Resolve takes *enode.Node instead of NodeID. This is also for
v4 protocol compatibility because nodes cannot be looked up by ID
alone.
- Types Node and NodeID are gone. Further commits in the series will be
fixes all over the the codebase to deal with those removals.
* p2p: port to p2p/enode and discovery changes
This adapts package p2p to the changes in p2p/discover. All uses of
discover.Node and discover.NodeID are replaced by their equivalents from
p2p/enode.
New API is added to retrieve the enode.Node instance of a peer. The
behavior of Server.Self with discovery disabled is improved. It now
tries much harder to report a working IP address, falling back to
127.0.0.1 if no suitable address can be determined through other means.
These changes were needed for tests of other packages later in the
series.
* p2p/simulations, p2p/testing: port to p2p/enode
No surprises here, mostly replacements of discover.Node, discover.NodeID
with their new equivalents. The 'interesting' API changes are:
- testing.ProtocolSession tracks complete nodes, not just their IDs.
- adapters.NodeConfig has a new method to create a complete node.
These changes were needed to make swarm tests work.
Note that the NodeID change makes the code incompatible with old
simulation snapshots.
* whisper/whisperv5, whisper/whisperv6: port to p2p/enode
This port was easy because whisper uses []byte for node IDs and
URL strings in the API.
* eth: port to p2p/enode
Again, easy to port because eth uses strings for node IDs and doesn't
care about node information in any way.
* les: port to p2p/enode
Apart from replacing discover.NodeID with enode.ID, most changes are in
the server pool code. It now deals with complete nodes instead
of (Pubkey, IP, Port) triples. The database format is unchanged for now,
but we should probably change it to use the node database later.
* node: port to p2p/enode
This change simply replaces discover.Node and discover.NodeID with their
new equivalents.
* swarm/network: port to p2p/enode
Swarm has its own node address representation, BzzAddr, containing both
an overlay address (the hash of a secp256k1 public key) and an underlay
address (enode:// URL).
There are no changes to the BzzAddr format in this commit, but certain
operations such as creating a BzzAddr from a node ID are now impossible
because node IDs aren't public keys anymore.
Most swarm-related changes in the series remove uses of
NewAddrFromNodeID, replacing it with NewAddr which takes a complete node
as argument. ToOverlayAddr is removed because we can just use the node
ID directly.
* swarm/network: simplify kademlia/hive; rid interfaces
* swarm, swarm/network/stream, swarm/netork/simulations,, swarm/pss: adapt to new Kad API
* swarm/network: minor changes re review; add missing lock to NeighbourhoodDepthC
* swarm/storage/encryption: async segmentwise encryption/decryption
* swarm/storage: adapt hasherstore to encryption API change
* swarm/api: adapt RefEncryption for AC to new Encryption API
* swarm/storage/encryption: address review comments
