CKB Dev Log 2023-05-03

[anipenguin]

Cangshan Erhai - @liuck8080

Updates!

Features

• Updated CKB-Analyzer to pull the latest data to reflect CKB node distribution
• Abstracted tentacle, a multiplexed p2p network framework, to support custom key provider
  • You can define your own KeyProvider and choose how the private key is used for the ECDH key agreement protocol
  • feat: support custom KeyProvider tentacle#366
• Added spawn syscalls (hardfork features) to CKB's standard lib in C
  • Add spawn syscalls for ckb2023 ckb-c-stdlib#41
• Drafted signer plugin for Open Transaction web app
  • Use RPC to get a list of unsigned transaction requests from the Open Transaction pool
  • feat: allow signer plugin to open its own rpc services EthanYuan/open-transaction-pool#8

Improvements

• New field to record the time a transaction enters the transaction pool in the get_transaction RPC
  • You can now easily debug or resend a long-pending transaction by checking this timestamp
  • rpc(ChainRpc): Add time_added_to_pool field for ChainRpcImpl::get_transaction #3949
• Better malloc() function for CKB runtime in a constrained environment
  • fixed-malloc - a new memory allocator written in pure C99 that operates within a fixed memory region
• Removed duplicate code logic in tx_pool
  • Refactor tx_pool controller #3960

Fixed

• Fixed truncate RPC
  • Block data is processed in smaller segments, preventing memory leaks and crashes
• Fixed the Type discrepancy between RPC Doc and codebase
  • Fix cargo doc not generate dependencies type document #3954

In the pipeline

• Release tentacle
• Launch CKB-Analyzer beta
• Address OutOfMemoryError from CKB initial block download
• The CKB Combine Lock script that lets you combine different signature algorithm scripts and easily verify them all together
• A general OOP model on CKB because dApp programming on UTXO is hard
• An RPC to query only confirmed transactions
  • rpc(ChainRpc): Add only_committed param for get_transaction #3963
• Add probes for syscall and functions to ckb-debugger
  • Add documentation and sample code to use probes ckb-standalone-debugger#71
• Add spawn syscalls (hardfork features) to CKB lib in Rust
  • Add 3 new syscalls: spawn, get_memory_limit and set_content ckb-std#39
• A MVP of Open Transactions P2P network
  • A Rust function to verify the transactions in groups, its output will be used to evaluate the value of OTXs for the filtering and reputation system of P2P network
  • P2P MVP EthanYuan/open-transaction-pool#6
• Supprt the following RPC Methods in Rust, Java, and Go:
  • get_transaction_and_witness_proof - returns a Merkle proof of transactions’ witness included in a block)
  • verify_transaction_and_witness_proof - verifies that a proof points to transactions in a block, returning the transaction hashes it commits to
• Mock testing Light Client in ckb-sdk-java
  • Update Gradle version to 7.6 and resolve the issue of unsigned auto-deployment
  • Update gradle to 7.6 ckb-sdk-java#637