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Author SHA1 Message Date
Felix Lange 693d9ccbfb trie: more node iterator improvements (#14615) 
* ethdb: remove Set

Set deadlocks immediately and isn't part of the Database interface.

* trie: add Err to Iterator

This is useful for testing because the underlying NodeIterator doesn't
need to be kept in a separate variable just to get the error.

* trie: add LeafKey to iterator, panic when not at leaf

LeafKey is useful for callers that can't interpret Path.

* trie: retry failed seek/peek in iterator Next

Instead of failing iteration irrecoverably, make it so Next retries the
pending seek or peek every time.

Smaller changes in this commit make this easier to test:

* The iterator previously returned from Next on encountering a hash
  node. This caused it to visit the same path twice.
* Path returned nibbles with terminator symbol for valueNode attached
  to fullNode, but removed it for valueNode attached to shortNode. Now
  the terminator is always present. This makes Path unique to each node
  and simplifies Leaf.

* trie: add Path to MissingNodeError

The light client trie iterator needs to know the path of the node that's
missing so it can retrieve a proof for it. NodeIterator.Path is not
sufficient because it is updated when the node is resolved and actually
visited by the iterator.

Also remove unused fields. They were added a long time ago before we
knew which fields would be needed for the light client.
 2017-06-20 18:26:09 +02:00
S. Matthew English 061889d4ea rlp, trie, contracts, compression, consensus: improve comments (#14580) 2017-06-12 14:45:17 +02:00
Felix Lange 4047ccad2f trie: add start key to NodeIterator constructors 
The 'step' method is split into two parts, 'peek' and 'push'. peek
returns the next state but doesn't make it current.

The end of iteration was previously tracked by setting 'trie' to nil.
End of iteration is now tracked using the 'iteratorEnd' error, which is
slightly cleaner and requires less code.
 2017-04-25 02:14:31 +02:00
Felix Lange a13e920af0 trie: clean up iterator constructors 
Make it so each iterator has exactly one public constructor:

- NodeIterators can be created through a method.
- Iterators can be created through NewIterator on any NodeIterator.
 2017-04-25 02:14:31 +02:00
Felix Lange f958d7d482 trie: rework and document key encoding 
'encode' and 'decode' are meaningless because the code deals with three
encodings. Document the encodings and give a name to each one.
 2017-04-25 02:14:31 +02:00
Felix Lange a31d268b76 trie: remove Key in MissingNodeError 
The key was constructed from nibbles, which isn't possible for all
nodes. Remove the only use of Key in LightTrie by always retrying with
the original key that was looked up.
 2017-04-18 14:52:11 +02:00
Nick Johnson b35aa21f9f trie: implement unionIterator (#14312) 2017-04-13 11:14:19 +02:00
Péter Szilágyi 09777952ee core, consensus: pluggable consensus engines (#3817) 
This commit adds pluggable consensus engines to go-ethereum. In short, it
introduces a generic consensus interface, and refactors the entire codebase to
use this interface.
 2017-04-05 00:16:29 +02:00
Felix Lange f1534f5797 trie, whisper/whisperv5: use math/rand Read function 2017-03-22 20:49:15 +01:00
Péter Szilágyi d4fd06c3dc
all: blidly swap out glog to our log15, logs need rework 2017-02-23 12:16:44 +02:00
Nick Johnson 555273495b trie: add difference iterator (#3637) 
This PR implements a differenceIterator, which allows iterating over trie nodes
that exist in one trie but not in another. This is a prerequisite for most GC
strategies, in order to find obsolete nodes.
 2017-02-22 23:49:34 +01:00
Felix Lange b9b3efb09f all: fix ineffectual assignments and remove uses of crypto.Sha3 
go get github.com/gordonklaus/ineffassign
ineffassign .
 2017-01-09 16:24:42 +01:00
Péter Szilágyi 18c77744ff
all: fix spelling errors 2017-01-06 19:44:35 +02:00
Felix Lange f2da6581ba all: fix issues reported by honnef.co/go/simple/cmd/gosimple 2017-01-06 18:18:07 +01:00
Felix Lange 35a7dcb162 all: gofmt -w -s 2017-01-06 15:52:03 +01:00
Felix Lange d3b751e4d9 trie: remove dependency on ethdb 
This removes the core/types -> leveldb dependency.
 2017-01-06 14:15:22 +01:00
Péter Szilágyi 90b16a3e85
core/state, eth/downloader, trie: reset fast-failure on progress 2016-10-31 14:19:14 +02:00
Péter Szilágyi f8608a5228 trie: while fast syncing, don't keep trie nodes in memory (#3186) 2016-10-21 17:34:17 +02:00
Péter Szilágyi 88a593d559
cmd/geth, trie: report on trie cache unloads, also add debug log 2016-10-19 17:31:19 +03:00
Felix Lange 5d9bb0a050 trie: add metric to track cache unloading (#3175) 2016-10-19 16:07:19 +02:00
Felix Lange d48e6ae66f trie: make the cache miss counter a real metric 2016-10-19 15:22:37 +02:00
Jeffrey Wilcke 25ac04a444 Merge pull request #3153 from fjl/trie-unload-fix 
trie: improve cache unloading mechanism
 2016-10-19 13:35:49 +02:00
Péter Szilágyi 2bb5ec1e41
cmd/geth, trie: track and report trie cache misses 2016-10-19 14:12:35 +03:00
Felix Lange 8d56bf5ceb trie: ensure dirty flag is unset for embedded child nodes 
This was caught by the new invariant check.
 2016-10-18 04:57:47 +02:00
Felix Lange 177cab5fe7 trie: ensure resolved nodes stay loaded 
Commit 40cdcf1183 broke the optimisation which kept nodes resolved
during Get in the trie. The decoder assigned cache generation 0
unconditionally, causing resolved nodes to get flushed on Commit.

This commit fixes it and adds two tests.
 2016-10-18 04:57:47 +02:00
Felix Lange 187d6a66a5 trie: avoid loading the root node twice 
New checks whether the root node is present by loading it from the
database. Keep the node around instead of discarding it.
 2016-10-18 04:57:47 +02:00
Felix Lange 2cd7a0395d trie: fix regression that linked all downloaded nodes together 
The trie sync code links subtries using pointers into node structs.
Since commit 40cdcf1183 nodes are no longer copied when unpacking from
an interface value, causing all nodes to get linked up as the sync
progresses. Fix it by breaking the pointer chain with an explicit copy.
 2016-10-15 00:42:52 +02:00
Felix Lange 40cdcf1183 trie, core/state: improve memory usage and performance (#3135) 
* trie: store nodes as pointers

This avoids memory copies when unwrapping node interface values.

name      old time/op  new time/op  delta
Get        388ns ± 8%   215ns ± 2%  -44.56%  (p=0.000 n=15+15)
GetDB      363ns ± 3%   202ns ± 2%  -44.21%  (p=0.000 n=15+15)
UpdateBE  1.57µs ± 2%  1.29µs ± 3%  -17.80%  (p=0.000 n=13+15)
UpdateLE  1.92µs ± 2%  1.61µs ± 2%  -16.25%  (p=0.000 n=14+14)
HashBE    2.16µs ± 6%  2.18µs ± 6%     ~     (p=0.436 n=15+15)
HashLE    7.43µs ± 3%  7.21µs ± 3%   -2.96%  (p=0.000 n=15+13)

* trie: close temporary databases in GetDB benchmark

* trie: don't keep []byte from DB load around

Nodes decoded from a DB load kept hashes and values as sub-slices of
the DB value. This can be a problem because loading from leveldb often
returns []byte with a cap that's larger than necessary, increasing
memory usage.

* trie: unload old cached nodes

* trie, core/state: use cache unloading for account trie

* trie: use explicit private flags (fixes Go 1.5 reflection issue).

* trie: fixup cachegen overflow at request of nick

* core/state: rename journal size constant
 2016-10-14 19:04:33 +03:00
Felix Lange c3a77d6268 trie: fix delete bug for values contained in fullNode 
Delete crashed if a fullNode contained a valueNode directly. This bug is
very unlikely to occur with SecureTrie, but can happen with regular
tries. This commit also introduces a randomised test which triggers all
trie operations, which should prevent such bugs in the future.

Credit for finding this bug goes to Github user @rjl493456442.
 2016-09-29 22:53:59 +02:00
Felix Lange ba8c4c6b1a trie: remove dependency on package crypto 
Package crypto needs cgo, which is inconvenient for some build
configurations.
 2016-09-29 22:23:24 +02:00
Péter Szilágyi 710435b51b core, eth, trie: reuse trie journals in all our code 2016-09-28 11:27:31 +03:00
Felix Lange cd791bd855 core, trie: replace state caches with trie journal 2016-09-28 11:27:28 +03:00
Péter Szilágyi 1d5d21726a Merge pull request #2627 from karalabe/concurrent-head-sync 
eth/downloader, trie: pull head state concurrently with chain
 2016-05-31 11:52:16 +03:00
Péter Szilágyi 4f1d92b332 eth/downloader, trie: pull head state concurrently with chain 2016-05-27 14:26:00 +03:00
Péter Szilágyi 748d1c171d core, core/state, trie: enterprise hand-tuned multi-level caching 2016-05-26 16:33:09 +03:00
Felix Lange 6fdd0893c3 all: fix go vet warnings 2016-04-15 11:17:27 +02:00
Felix Lange d04a2e7557 all: update license information 2016-04-15 09:48:05 +02:00
Péter Szilágyi e90958cd29 cmd, eth, ethdb, node: prioritise chaindata for resources, bump cache 2016-03-09 10:33:39 +02:00
Jeffrey Wilcke 483feb0d3f Merge pull request #2242 from jimenezrick/upstream-crypto 
Closes #2241: Use Keccak-256 from golang.org/x/crypto/sha3 and mention explicitly
 2016-02-24 12:57:57 +01:00
Ricardo Catalinas Jiménez 436fc8d76a all: Rename crypto.Sha3{,Hash}() to crypto.Keccak256{,Hash}() 
As we aren't really using the standarized SHA-3
 2016-02-21 22:34:34 +00:00
Péter Szilágyi b8d59d9c98 core/state, trie: switch iterator panics to error fields 2016-02-16 12:37:00 +02:00
Péter Szilágyi 151c7bef41 core/state, trie: node iterator reports parent hashes too 2016-02-16 12:21:08 +02:00
Péter Szilágyi 5a057a8ded core/state, trie: surface iterator entry hashes 2016-02-16 12:21:08 +02:00
Péter Szilágyi 7e29b0b5b4 core/state, trie: add node iterator, test state/trie sync consistency 2016-02-16 12:21:08 +02:00
Péter Szilágyi f3d4ce0d16 core/state, ethdb, trie: test intermediate secure key leak, fix memdb bug 2016-01-20 16:06:28 +02:00
Péter Szilágyi 886478b18b core/state, trie: don't leak database writes before commit 2016-01-20 12:09:24 +02:00
zsfelfoldi ef422ee1e1 light: implemented odr-capable trie and state structures 2015-12-17 16:07:54 +01:00
zsfelfoldi 52904ae32f trie: added error handling 
Created alternate versions of Trie and SecureTrie functions that can return a MissingNodeError (used by ODR services)
 2015-12-01 01:38:32 +01:00
Péter Szilágyi 5b0ee8ec30 core, eth, trie: fix data races and merge/review issues 2015-10-21 16:49:55 +03:00
Péter Szilágyi b97e34a8e4 eth/downloader: concurrent receipt and state processing 2015-10-19 10:03:10 +03:00
Péter Szilágyi ab27bee25a core, eth, trie: direct state trie synchronization 2015-10-19 10:03:09 +03:00
Felix Lange c1a352c108 trie: add merkle proof functions 2015-09-22 22:57:37 +02:00
Felix Lange 565d9f2306 core, trie: new trie 2015-09-22 22:53:49 +02:00
Felix Lange 6b91a4abe5 trie: improve benchmarks 2015-09-22 22:49:27 +02:00
Jeffrey Wilcke b8ca0a830e eth, trie: removed key prefixing from state entries & merge db fix 
Fixed database merge strategy to use the correct database. Due to a copy
paste fail when doing type evaluation the same database was being
iterated (chain), all others were ignored.

Removed state prefixing because {H(code): code} is stored in the same
database as the rest of the state.
 2015-08-13 20:44:03 +02:00
Jeffrey Wilcke a23478c0be core, eth, trie, xeth: merged state, chain, extra databases in one 2015-08-07 22:29:02 +02:00
Ethan Buchman 46c9594081 trie: run codec tests, add benchmarks, faster 2015-08-06 14:04:16 -04:00
Ethan Buchman c1d516546d faster hex-prefix codec and string -> []byte 2015-08-06 03:17:59 -04:00
Jeffrey Wilcke 1fad8798ec Merge pull request #1515 from fjl/license-fixes 
all: fix license headers one more time
 2015-07-28 04:29:42 -07:00
Felix Lange bfbcfbe4a9 all: fix license headers one more time 
I forgot to update one instance of "go-ethereum" in commit 3f047be5a.
 2015-07-23 18:35:11 +02:00
Jeffrey Wilcke 8f56eea77d ethdb, trie: removed RLE compression 2015-07-23 12:57:33 +02:00
Felix Lange 3f047be5aa all: update license headers to distiguish GPL/LGPL 
All code outside of cmd/ is licensed as LGPL. The headers
now reflect this by calling the whole work "the go-ethereum library".
 2015-07-22 18:51:45 +02:00
Felix Lange bdae4fd573 all: add some godoc synopsis comments 2015-07-07 14:12:45 +02:00
Felix Lange ea54283b30 all: update license information 2015-07-07 14:12:44 +02:00
Jeffrey Wilcke 47460b3b4a trie: removed shallow copies (thanks to @fjl) 2015-07-04 02:51:37 +02:00
Jeffrey Wilcke 0a1ff68c11 trie: dirty tracking 2015-07-04 02:51:36 +02:00
obscuren c850c41ec1 trie: Implemented a batch write approach for flushing 2015-06-29 18:51:48 +02:00
obscuren a40a91d60f trie: fixed tests 2015-06-21 17:08:47 +02:00
obscuren c590b505ed core, ethdb, trie: validate database errors 2015-06-21 16:59:15 +02:00
obscuren bbe795455a Secure trie shakey / key matching 2015-03-24 15:14:03 +01:00
obscuren cf45b939a0 fixed tests 2015-03-19 14:31:14 +01:00
obscuren d7ab716eea Fixed mkdnode & added some tests 2015-03-19 10:57:02 +01:00
obscuren b523441361 Moved ethutil => common 2015-03-16 11:27:38 +01:00
obscuren d44fe4ec62 Merge branch 'develop' into poc-9 2015-03-05 17:46:40 +01:00
obscuren 357d17ae58 Start at 0 2015-03-05 17:46:00 +01:00
= a6fe92194f Fixed iterator bug which skips the 0x000...000 key 2015-03-05 01:47:49 +00:00
obscuren b909a5ec18 Trie => SecureTrie 2015-03-03 12:25:44 +01:00
obscuren bf5365b317 Delet => Delete 2015-03-03 12:15:58 +01:00
obscuren ae45a39dc1 Secure trie 2015-02-28 20:52:29 +01:00
obscuren 99ebb869bf Fixed iterator 2015-02-07 17:03:22 +01:00
obscuren 3c7181d28f Fixed a copy issue in the trie which could cause a consensus failure 2015-02-02 19:58:34 -08:00
obscuren 705cf6113d debug err removed 2015-01-29 23:18:46 +01:00
obscuren 9022f5034f default values removed 2015-01-29 23:17:43 +01:00
obscuren db4aaedcbd Moved ptrie => trie. Removed old trie 2015-01-08 11:47:04 +01:00
obscuren fed3e6a808 Refactored ethutil.Config.Db out 2015-01-07 13:17:48 +01:00
obscuren 93e693be72 Fixed tests for 'types' 2014-11-18 19:52:45 +01:00
obscuren 675ba4d7eb Merge branch 'tests' into poc8 2014-11-18 19:48:35 +01:00
obscuren 62cd9946ee j => i 2014-11-18 12:20:14 +01:00
obscuren e08aba5dd9 added output test 2014-11-18 12:18:27 +01:00
obscuren 3220a32ff0 Added some comparison tests for the new ptrie 2014-11-18 12:03:09 +01:00
Taylor Gerring ddca18638f update imports order per goimports 2014-11-15 20:21:55 -06:00
Taylor Gerring e6e468ef59 Merge branch 'develop' of https://github.com/tgerring/go-ethereum into tests 
Conflicts:
	p2p/messenger_test.go
	trie/trie_test.go
 2014-11-14 15:19:50 -06:00
Taylor Gerring 2a9fc7baa9 Merge branch 'develop' of https://github.com/tgerring/go-ethereum 2014-11-14 15:01:52 -06:00
Taylor Gerring 313cfba7d4 convert trie encoding tests to checker 2014-11-13 04:40:21 +01:00
Taylor Gerring 00878e5b6e Convert trie tests to gocheck 2014-11-12 21:43:25 +01:00
obscuren 60cdb1148c Transaction execution fixes 2014-11-12 01:36:36 +01:00
obscuren a82b89e2d5 Added storage root to dump 2014-11-03 23:45:44 +01:00
obscuren af34749a6b ethtrie => trie 2014-10-31 14:45:03 +01:00