Commit Graph

56 Commits

Author SHA1 Message Date
Potuz
cef95dd5b2
Revert --experimental-disable-boundary-checks (#11160)
* Revert --experimental-disable-boundary-checks

* add deprecation

* gaz

* spectests

* spectests fix

* fix previous justified checkpoint

* copy previous jcp

* Revert "copy previous jcp"

This reverts commit 6e2b865c23e356e24b1f801ad3670acb0714ade7.

* update previous jcp on on_tick

Co-authored-by: terencechain <terence@prysmaticlabs.com>
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-08-04 13:26:41 +00:00
Radosław Kapka
879e310332
Native Blocks Ep. 2 - Switch usages to new package (#10885)
* panic in SizeSSZ

* moving slowly

* adapt old code to new interfaces

* return interfaces from factory functions

* replace the rest of WrappedSignedBeaconBlock

* WrappedBeaconBlock

* WrappedBeaconBlockBody

* miscellaneous

* Test_BeaconBlockIsNil

* replace usages of BeaconBlockIsNil

* replace usages of mutator

* fix all build errors

* fix some more issues

* mutator changes

* relax assertions when initializing

* revert changes in object_mapping.go

* allow calling Proto on nil

* Revert "allow calling Proto on nil"

This reverts commit ecc84e455381b03d24aec2fa0fa17bddbec71705.

* modify Copy and Proto methods

* remove unused var

* fix block batch tests

* correct BUILD file

* Error when initializing nil objects

* one more error fix

* add missing comma

* rename alias to blocktest

* add logging

* error when SignedBeaconBlock is nil

* fix last test

* import fix

* broken

* working

* test fixes

* reduce complexity of processPendingBlocks

* simplified
2022-08-02 15:30:46 +00:00
terencechain
758d28678c
Don't create payload with same timestamp as terminal block (#11129) 2022-07-31 17:17:55 +00:00
Raul Jordan
10fffa6e7c
[Feature] - Store Only Blinded Beacon Blocks Post-Merge (#11010)
* add in flags

* add sync and db items

* bring over all other changes

* enable on

* use feature flag

* powchain

* builds

* fix up tests

* pass iface

* gaz

* enable bellatrix blind in unmarshal only behind flag

* poolside

* pass rpc tests

* rebuilds

* naming

* cleaner func

* check needs resync

* idiomatic

* gaz

* rem

* build

* nicer

* build

* cleaner

* surface error

* wrapping

* unmarshal logs

* fix up

* cleaner

* log

* builds

* Update beacon-chain/blockchain/execution_engine.go

Co-authored-by: terencechain <terence@prysmaticlabs.com>

* terence feedback

* test added for resync

* nil check

* fmt

Co-authored-by: terencechain <terence@prysmaticlabs.com>
2022-07-13 17:18:30 +00:00
Raul Jordan
e01a898264
Execution Payload / Header Interface Wrappers (#11025)
* exec payload iface

* begin using iface

* use iface more

* build beacon

* builds

* txs field

* fix

* merge test

* pass

* test

* refactor

* fix up builder case

* gaz

* comments

* el test

* build

* no mask

* patch up

* exec wrap

* Terence feedback

* builds

* potuz suggestion

* exec data error

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-07-13 01:49:38 +00:00
Raul Jordan
b67c885995
Major Simplification of JSON Handling for Execution Blocks (#10993)
* no more execution block custom type

* simpler json rpc data unmarshaling

* simplicify

* included hash and txs fix

* all tests

* pass

* build

* mock fix

* attempt build

* builds

* build

* builds

* pass

* pass

* build

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-07-06 22:06:00 +00:00
Potuz
5d29ca4984
Experimental disable boundary checks (#10936)
* init

* bellatrix + altair tests passing

* Add Phase0 support

* add feature flag

* phase0 test

* restore testvectors

* mod tidy

* state tests

* gaz

* do not call precompute

* fix test

* Fix context

* move to own's method

* remove spectests pulltips

* time import

* remove phase0

* mod tidy

* fix getters

* Update beacon-chain/forkchoice/doubly-linked-tree/types.go

* reviews

* fix workspace

* Recursive rlocks

Co-authored-by: terencechain <terence@prysmaticlabs.com>
Co-authored-by: Radosław Kapka <rkapka@wp.pl>
2022-06-29 23:37:21 +00:00
Radosław Kapka
b82e2e7d40
Use prysmaticlabs/fastssz as a direct dependency (#10941)
* Update dependency

* Regenerate SSZ files

* fix BUILD files

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>
Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com>
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-06-28 13:03:24 +00:00
Radosław Kapka
7f56ac6355
Massive code cleanup (#10913)
* Massive code cleanup

* fix test issues

* remove GetGenesis mock expectations

* unused receiver

* rename unused params

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-06-27 13:34:38 +00:00
Potuz
f8b4d8c57a
Deprecate store in blockchain pkg (#10903)
* Deprecate store WIP

* fix spectests build

* mock right interface

* sync tests build

* more tests builds

* blockchain tests

- TestFinalizedCheckpt_GenesisRootOk
- TestCurrentJustifiedCheckpt_CanRetrieve
- TestJustifiedCheckpt_GenesisRootOk
- TestHeadRoot_CanRetrieve
- TestHeadRoot_UseDB
- TestService_ProcessAttestationsAndUpdateHead
- TestService_VerifyWeakSubjectivityRoot
- TestVerifyFinalizedConsistency_InconsistentRoot_ProtoArray
- TestVerifyFinalizedConsistency_InconsistentRoot_DoublyLinkedTree
- TestVerifyFinalizedConsistency_Ok
- TestStore_OnBlock_ProtoArray
- TestStore_OnBlock_DoublyLinkedTree
- TestStore_OnBlockBatch_ProtoArray
- TestStore_OnBlockBatch_DoublyLinkedTree
- TestStore_OnBlockBatch_NotifyNewPayload
- TestCachedPreState_CanGetFromStateSummary_ProtoArray
- TestCachedPreState_CanGetFromStateSummary_DoublyLinkedTree

* more blockchain tests

- TestStore_OnBlockBatch_PruneOK_Protoarray
- TestFillForkChoiceMissingBlocks_CanSave_ProtoArray
- TestFillForkChoiceMissingBlocks_CanSave_DoublyLinkedTree
- TestFillForkChoiceMissingBlocks_RootsMatch_Protoarray
- TestFillForkChoiceMissingBlocks_RootsMatch_DoublyLinkedTree
- TestFillForkChoiceMissingBlocks_FilterFinalized_ProtoArray
- TestFillForkChoiceMissingBlocks_FilterFinalized_DoublyLinkedTree
- TestVerifyBlkDescendant
- Test_verifyBlkFinalizedSlot_invalidBlock
- TestChainService_SaveHeadNoDB

* update best justified from genesis

* deal with nil head on saveHead

* initialize prev justified checkpoint

* update finalization correctly

* update finalization logic

* update finalization logic

* track the wall clock on forkchoice spectests

* export copies of checkpoints from blockchain package

* do not use forkchoice's head on HeadRoot

* Remove debug remain

Co-authored-by: terencechain <terence@prysmaticlabs.com>

* terence's review

* add forkchoice types deps

* wtf

* debugging

* init-sync: update justified and finalized checkpoints on db

* call updateFinalized instead of only DB

* remove debug symbols

* safe copy headroot

Co-authored-by: terencechain <terence@prysmaticlabs.com>
2022-06-25 03:57:52 +00:00
Radosław Kapka
4b009ed813
Rename upgrade_to_altair.go to upgrade_to_bellatrix.go (#10926)
(cherry picked from commit c664e59a2e66a2e52814bdb59840ec3a205273e7)

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-06-24 12:46:07 +00:00
Potuz
20b4c60bcb
Apply Proposer Boost from forkchoice (#10893)
* Apply proposer boost at block insertion

* gaz

* fix tests

* revert time change

* conflict

* change genesis time in forkchoice on spectests

* Terence Review

Co-authored-by: terencechain <terence@prysmaticlabs.com>
2022-06-22 13:56:07 +00:00
terencechain
0b50ab7832
Consolidate ExecutionPayloadHeader Protobuf definitions (#10917) 2022-06-22 13:08:06 +02:00
Potuz
55b4af9f92
track the wall clock on forkchoice spectests (#10916) 2022-06-21 18:12:08 +00:00
terencechain
546bb5ed53
Clean up misc warnings (#10900)
* Clean up misc warnings

* Gazelle

* Rm state assignments

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-06-21 15:26:56 +00:00
Potuz
18fc17c903
Forkchoice checkpoints (#10823)
* double_tree_changes

* protoarray changes

* beacon-chain changes

* spec tests and debug rpc fixes

* more conflicts

* more conflicts

* Terence's review

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-06-09 22:28:30 +00:00
terencechain
7cc291c09f
Update proposer boost score and spec tests (#10665)
* Update mainnet_config.go

* Fixed a few tests

* Update rest of the tests

* Consolidate blockchain errors

* Update spec tests to v1.2.0-rc.1

* Fix withdrawal epoch overflows

* add slashings to forkchoice spectests

* Remove unused parameter

* Disable skip slot cache

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
Co-authored-by: Potuz <potuz@prysmaticlabs.com>
2022-05-23 23:08:24 +00:00
terencechain
46c0579816
Fix withdrawal epoch overflows (#10739)
* Fix withdrawal epoch overflows

* Fix typo, used epoch instead of churn
2022-05-23 21:10:19 +00:00
Potuz
237807b248
Do not update forkchoice checkpoints on calls to Head (#10702)
* Only update forkchoice checkpoints at epoch transition

* gazelle

* blockchain package changes

* fix node

* spectest package

* rpc package

* fix spec test

* Fix spectests

* fix new_slot.test

* gaz

* fix spectests

* fix conflicts

* Update beacon-chain/blockchain/process_block.go

* regression do not update on newSlot

* revert bd64cab

* terence's review

* fix conflicts

* fix latest conflicts

* gaz

* go mod tidy

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-05-22 18:37:01 +00:00
Raul Jordan
dc5fb92b28
Remove Unnecessary State Interfaces (#10707)
* rem other state interfaces

* redundant check

* gaz

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-05-20 22:40:03 +00:00
terencechain
370cf1a6c8
Chain info: Return err if checkpoint is nil (#10729)
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-05-20 18:41:33 +00:00
kasey
588dea83b7
Config registry (#10683)
* test coverage and updates to config twiddlers

* LoadChainConfigFile error if SetActive conflicts

* lint

* wip working around test issues

* more fixes, mass test updates

* lint

* linting

* thanks deepsource!

* fix undeclared vars

* fixing more undefined

* fix a bug, make a bug, repeat

* gaz

* use stock mainnet in case fork schedule matters

* remove unused KnownConfigs

* post-merge cleanup

* eliminating OverrideBeaconConfig outside tests

* more cleanup of OverrideBeaconConfig outside tests

* config for interop w/ genesis gen support

* improve var name

* API on package instead of exported value

* cleanup remainders of "registry" naming

* Nishant feedback

* add ropstein to configset

* lint

* lint #2

* ✂️

* revert accidental commented line

* check if active is nil (replace called on empty)

* Nishant feedback

* replace OverrideBeaconConfig call

* update interop instructions w/ new flag

* don't let interop replace config set via cli flags

Co-authored-by: kasey <kasey@users.noreply.github.com>
2022-05-20 07:16:53 +00:00
Preston Van Loon
51581e9b6e
Spectest: refactor forkchoice helper (#10616)
* Seperate forkchoice builder for lower cognitive score and better reusablity

* gaz

* deepsource resolutions

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-05-03 20:59:07 +00:00
Raul Jordan
20ab988a4a
Rename Block Package in Consensus-Types to Interfaces (#10605)
* interfaces package

* builds

* gaz
2022-05-02 14:32:37 -04:00
Raul Jordan
16bbf5602f
Move Consensus Type Wrappers Into Consensus Types Package (#10598)
* builds

* move block to consensus-types

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-05-02 15:43:40 +00:00
Raul Jordan
84916672c6
Remove Eth2-Types Dependency in Prysm (#10578)
* replace eth2 types

* replace protos

* regen proto

* replace

* gaz

* deps

* amend

* regen proto

* mod

* gaz

* gaz

* ensure build

* ssz

* add dep

* no more eth2 types

* no more eth2

* remg

* all builds

* buidl

* tidy

* clean

* fmt

* val serv

* gaz

Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com>
2022-04-29 10:32:11 -04:00
Nishant Das
0ad190c1fb
Graduate Balance Trie Feature (#10552) 2022-04-25 11:16:41 +02:00
Håvard Anda Estensen
d2f4a8cc7c
Replace ioutil with io and os (#10541)
* Replace ioutil with io and os

* Fix build errors
2022-04-18 20:42:07 +00:00
terence tsao
ad0b0b503d
Move GetTerminalBlockHash to powchain engine (#10500)
* Move GetTerminalBlockHash to powchain engine

* Update service.go

* Update service.go

Co-authored-by: Nishant Das <nishdas93@gmail.com>
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-04-12 10:19:07 +00:00
terence tsao
0411b7eceb
Payload ID caching (#10481) 2022-04-06 16:36:52 -07:00
Potuz
ce15823f8d
Save head after FCU (#10466)
* Update head after FCU

* rename function

Co-authored-by: terence tsao <terence@prysmaticlabs.com>
2022-04-01 00:08:01 +00:00
Preston Van Loon
c68894b77d
Spectest: Improve test size and timeouts (#10461)
* Adjust test sizes

* Improve the bazel test attributes for forkchoice and other tests

Co-authored-by: terence tsao <terence@prysmaticlabs.com>
2022-03-30 20:04:42 +00:00
terence tsao
59b9519284
Forkchoice spec test: set boost with deterministic timing (#10428)
* Set boost with deterministic timing

* confs

* gaz

* Update runner.go

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>
2022-03-29 19:48:33 +00:00
Preston Van Loon
b697463da9
wrapper: Remove deprecated fork specific wrapper methods for signed beacon blocks (#10369)
* Remove deprecated wrappers, lots of refactoring

* Revert proto/prysm/v1alpha1/validator.proto

* fix tests

* fix test

* fix conversion in e2e

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-03-25 23:00:44 +00:00
Potuz
0165351db3
Setup Optimistic sync when starting the service (#10397)
* Load Last Validated Checkpoint at service startup and initialize
Forkchoice

* fix spectests

* Update service_test.go

* wip

* Fix blockchain tests

* remove unnecessary summary saves

* Terence's suggestion

Co-authored-by: terence tsao <terence@prysmaticlabs.com>
2022-03-23 21:11:36 +00:00
terence tsao
b90ce1b60f
Bellatrix fork choice spec tests (#10381)
* Add bellatrix forkchoice spec tests

* Update service.go

* better conversion
2022-03-17 05:30:44 +00:00
terence tsao
69a9388515
Spec test v1.1.10 (#10298)
* spectest

* uncomment shas

* Fc spec test service shouldn't not spawn attestation routine

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com>
2022-03-15 13:17:51 +00:00
Potuz
57a323f083
Forkchoice featureflag (#10299)
* Compiling main beacon-chain binary

* Add feature flag

* passing protoarray tests

* passing nodetree tests

* passing blockchain package tests

* passing rpc tests

* go fmt

* re-export forkchoice store from blockchain package

* remove duplicated import

* remove unused var

* add nodetree rpc method

* remove slot from IsOptimisticForRoot

* release lock in IsOptimistic

* change package name

* Revert "change package name"

This reverts commit 679112f9ef795922c631e7823dbdfb3746838f3c.

* rename package

* Update doc

* Fix span names

* Terence + Raul review

* remove go:build flags

* add errors dep

* spec tests

* fix call to IsOptimisticForRoot

* fix test

* Fix conflict

* change name of function

* remove ctx from store.head

Co-authored-by: terence tsao <terence@prysmaticlabs.com>
2022-03-09 03:05:51 +00:00
terence tsao
d51b52d432
Add pow block protobuf (#10205)
* Add pow_block protobuf

* Revert hash changes

This reverts commit 4afb280385a411b65e960033f4d74f0ba74bc686.

* Revert "Add pow_block protobuf"

This reverts commit 4afb280385a411b65e960033f4d74f0ba74bc686.

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>
Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-02-09 22:27:30 +00:00
Raul Jordan
4322185d80
Use Execution Payload Defined in Engine V1 Namespace (#10170)
* payload use

* incl

* cloners

* regen pb

* gen ssz

* use proper payload

* broken imports

* build

* state

* builds

* proper engine

* builds

* fmt

* baz

* ssz

* baz

* fmt

* regen ssz

* receipts root

* regen pb

* ssz

* receipts root

* ci lint

* proto

* test pkg

* bazel
2022-02-02 03:30:35 +00:00
terence tsao
8a01d412f5
Implement fork choice spec tests (#10159)
* starting

* Reimplement store

* begin on proposer boost

* implement fork choice proposer boost algorithm

* boosting

* gaz

* add mutexes and previous root

* comment on compute proposer boost

* safe

* rem todo

* reset and add tests

* unit test for proposer boost score

* boost works

* Can process block

* Basic test case passing

* ex ante

* test

* propoer test

* More progresses

* More fixes

* rm unused pieces

* Refactor, add phase 0

* locks

* vanilla ex-ante attack

* test similar to spec test

* works works works

* boost test working for num votes > proposer boost weight

* commentary fixes

* rem unused

* comments

* Proposer boost use store time

* Reset proposer root

* debugging

* passing

* Rm unused visibility imports

* Move update head to better place

* Fix deepsrc complains

* Fix more complains

* Raul's feedback

* Use correct byte lengths

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>
2022-01-31 19:03:48 +00:00
Leo Lara
d9799e6b6c
#10036 Replace codename Merge with Bellatrix (2nd step) (#10116)
* Rename BeaconBlockBodyMerge to BeaconBlockBodyBellatrix

* Rename SignedBeaconBlockMerge to SignedBeaconBlockBellatrix

* Rename CopyBeaconBlockMerge to CopyBeaconBlockMerge

* Rename NewBeaconBlockMerge to NewBeaconBlockBellatrix

* Rename BeaconBlockMerge to BeaconBlockBellatrix

* Rename some comments and strings in pkg proto: Merge -> Bellatrix

* Rename PbMergeBlock to PbBellatrixBlock

* Many renames of merge -> bellatrix in proto package

* Rename some Merge -> Bellatrix in beacon chain package

* More names

* Fix formating in config/params/config.go

* Rename Merge -> Bellatrix in proto/prysm/storage

* Several renames and corrections Merge -> Bellatrix

Co-authored-by: Potuz <potuz@potuz.net>

Co-authored-by: terence tsao <terence@prysmaticlabs.com>
Co-authored-by: Potuz <potuz@potuz.net>
Co-authored-by: Nishant Das <nishdas93@gmail.com>
2022-01-26 07:24:47 +00:00
Preston Van Loon
2ad0ad5877
Spectests: Refactor ssz_static tests to deduplicate code and test custom HTR (#10081)
* Copy over refactoring efforts from PR #9402

* Remove unused type

* godoc commentary

* Better example err msg

* Better example err msg
2022-01-13 19:52:39 +00:00
terence tsao
84335b0084
Bellatrix spec tests (#10014)
* Add merge spectests

* fix build

* gazelle

* operation

* all tests should pass

* go fmt

* fix test

* fix dependency

* rm unused constants

* rename to bellatrix

* Gaz

* Rm unused files

* Use Bellatrix for test names

* Add more spec tests

* Gaz and fix test

* sync with dev

* Preston's feedback

* Go fmt

* sync with dev

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-01-10 18:27:08 +00:00
Antonio Sanso
c84c6ab547
Add Missing spec tests in sss_static.go (#10003)
* Update ssz_static.go

* Update ssz_static.go

* Update testing/spectest/shared/phase0/ssz_static/ssz_static.go

Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com>

* Add Missing spec tests in sss_static.go

* Update testing/spectest/shared/altair/ssz_static/ssz_static.go

Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com>
2021-12-10 15:18:57 -06:00
Radosław Kapka
5569a68452
Code cleanup (#9992)
* Value assigned to a variable is never read before being overwritten

* The result of append is not used anywhere

* Suspicious assignment of range-loop vars detected

* Unused method receiver detected

* Revert "Auxiliary commit to revert individual files from 54edcb445484a2e5d79612e19af8e949b8861253"

This reverts commit bbd1e1beabf7b0c5cfc4f514dcc820062ad6c063.

* Method modifies receiver

* Fix test

* Duplicate imports detected

* Incorrectly formatted error string

* Types of function parameters can be combined

* One more "Unused method receiver detected"

* Unused parameter detected in function
2021-12-07 17:52:39 +00:00
Nishant Das
6f20d17d15
Rename To Signature Batch (#9926)
Co-authored-by: Radosław Kapka <rkapka@wp.pl>
2021-11-23 17:57:06 +01:00
Nishant Das
0ade1f121d
Add Balance Field Trie (#9793)
* save stuff

* fix in v1

* clean up more

* fix bugs

* add comments and clean up

* add flag + test

* add tests

* fmt

* radek's review

* gaz

* kasey's review

* gaz and new conditional

* improve naming
2021-11-19 20:01:15 +08:00
terence tsao
cf956c718d
Update to Spectest 1.1.3 (#9786)
* Update transition spec test setup

* Update WORKSPACE

Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>
2021-10-18 18:13:40 +00:00
terence tsao
376d248c22
Add in progress handler to committee cache (#9664)
* Add in progress handler for committee cache

* Remove debug print

* Update validators.go

* Fix all the tests

* More tests

* Update committee_disabled.go

* Update committee_disabled.go

* Update testing util

* Update main.go

Co-authored-by: Nishant Das <nishdas93@gmail.com>
2021-09-26 23:27:57 +08:00