CKB Dev Log 2024-02-07

[anipenguin]

Updates

Features

• CKB Indexer RPC
  • Introduced new subcommands for CKB indexer RPC. Details: feat: addition of subcommands for CKB Indexer RPC ckb-cli#579
• CKB Light Client
  • Now supports sending chain transactions: feat: send chain txs ckb-light-client#187
  • Added estimate_cycles RPC method: feat(rpc): add rpc method estimate_cycles ckb-light-client#180
• CKB-STD Library
  • Constructed the logic for since, enforcing a consensus rule that prevents a cell from being spent before a specific block timestamp or block number. feat: Since construction methods & comparison logic ckb-std#76

Improvements

• CKB SDK in Rust:
  • Extended Indexer RPCs and renamed ScriptSearchMode to SearchMode. [BREAKING CHANGE] Extend Indexer PRC SearchKey for CKB 0.114 ckb-sdk-rust#102
• Spawn Syscall Enhancement:
  • Investigating a new approach for the spawn syscall. This involves introducing a pipe and deterministic scheduler to facilitate communication between parent and child VM instances. A prototype can be found here.

Fixes

• CKB Light Client
  • Fixed a broadcasting issue with relay transactions in CKB Light Client: fix: resolve relay v3 bug ckb-light-client#189
  • Fixed the cell filtering issue during the commitment of multiple transactions within the same block: fix: resolve cell filter bug when chain txs are committed in same block ckb-light-client#184
• Updated omnilock deployment on mainnet
  • Update omni lock deployment and signing message hash rfcs#430
  • Add missing auth id(0x02~0x05) cryptape/omnilock#2
• Addressed an issue with cell dep transaction descendants causing submission failures. A new direct_ancestors_count field has been introduced to better manage ancestor counts.
  • Don't account for cell dep for MAX_ANCESTORS_COUNT #4315
• Improved unit test infrastructure by relocating helper functions from ckb-chain to ckb-test-chain-utils, facilitating easier generation of blocks for testing.
  • Move some helper function for building blocks/txs from ckb-chain to ckb-test-chain-utils #4335
• Resolved a bug in CKB-VM where a variable was uninitialized during machine initialization
  • Let lr be initialized when the machine is initialized ckb-vm#394
• Corrected a problem where the shutdown layer wasn't applied to WebSocket, causing hangs upon server termination of WebSocket connections
  • Fix the websockets terminate issue #4331

In Pipeline…

• Script Verification Performance: Benchmark testing shows a 10x improvement in verification speed for transactions with significant cycles
  • New script verify with ckb-vm pause #4291
• Rich-Indexer: Aims to complement the original indexer with support for more complex queries, leveraging a relational database
  • feat: add rich-indexer which is another built-in indexer based on relational database #4224
• Otx Variant on Omnilock: Ongoing development to enhance Omnilock
  • Implement Cobuild integration and Solana support cryptape/omnilock#3
• Asynchronous Block Handling: Efforts are underway to make block downloading and verification asynchronous, promising significant enhancements to the synchronizer and ChainService
  • Asynchronous Block Download and Verification #3958