[PTOAS] finalize pipe init nosplit semantics#469

TaoTao-real wants to merge 4 commits intohw-native-sys:codex/pipe-init-nosplithw-native-sys/PTOAS:codex/pipe-init-nosplitfrom

TaoTao-real:codex/explicit-pipe-nosplitTaoTao-real/PTOAS:codex/explicit-pipe-nosplitCopy head branch name to clipboard