CKB Dev Log 2023-07-12

[anipenguin]

✩♬ ₊˚.🎧⋆☾⋆⁺₊✧ - @eval-exec

Updates

Features

• Implemented calc_data_hash in ckb-std
  • We've made the frequently used method calc_data_hash much more accessible
  • feat: Support calc_data_hash in ckb-std ckb-std#57
• Enhanced Debugging for spawn and exec in ckb-debugger
  • Following the addition of the spawn syscall in ckb2023, parent scripts can now call child scripts, with each operating as independent virtual machine instances
  • With the introduction of the -gdb-specify-depth feature in ckb-debugger, it is now possible to trace child scripts at any depth
  • nervosnetwork/ckb-standalone-debugger@ff797da
• Introduced the current_memory syscall that returns peak memory
  • As part of the ckb2023 hardfork, we have added a new syscall which provides the total memory usage across all virtual machine instances. This feature mainly works in tandem with the spawn syscall, accounting for the combined memory usage of parent scripts, child scripts, etc.
  • feat(script): add current_memory syscall #4063

Improvements

• Optimized the ckb_current_cycles syscall
  • The ckb_current_cycles syscall returns the sum of cycles of all active machines
  • In the spawn function, when the callee uses current_cycles(), only the cycles of the callee itself will be returned. With the improvement to the CurrentCycles syscall, a base field has been added which, when called, returns base + machine.cycles()
  • refactor(scripts): current_cycles returns the sum of cycles of all living machines #4059

In pipeline…

• Tx-Pool: Implementing Replace By Fee (RBF):
  • To enhance transaction processing, we are currently working on the implementation of Replace By Fee in the transaction pool. This mechanism will let transactions that are already in the pool to propose increased fees, replacing the older transactions, and enabling the new ones to be processed faster.
  • Tx pool rbf chenyukang/ckb#1