child_process: watch child_process stdin pipe peer close event

[Tseian]

Issue

#25131

Description

Watch pipe peer close(EOF/HUP) event, only support for unix. Once the event is detected, a JS callback is triggered to execute, which in turn triggers a method to destroy the socket. Eventually child_process.stdin.on('close') will be triggered.

Before

child_process.stdin.on('close') will not be triggered if the readable end of the pipe has been closed.

After

child_process.stdin.on('close') will be triggered if the readable end of the pipe has been closed.

Changes

• lib/internal/child_process.js
• src/pipe_wrap.cc
• src/pipe_wrap.h

Test

• test-child-process-stdin-close-event.js

[codecov]

Codecov Report

❌ Patch coverage is 74.62687% with 17 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.67%. Comparing base (69fdff9) to head (0b741f4).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/pipe_wrap.cc	71.92%	5 Missing and 11 partials ⚠️
lib/internal/child_process.js	90.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #62353   +/-   ##
=======================================
  Coverage   89.67%   89.67%           
=======================================
  Files         676      676           
  Lines      206693   206756   +63     
  Branches    39576    39592   +16     
=======================================
+ Hits       185346   185412   +66     
+ Misses      13482    13456   -26     
- Partials     7865     7888   +23     

Files with missing lines	Coverage Δ
src/pipe_wrap.h	100.00% <ø> (ø)
lib/internal/child_process.js	94.69% <90.00%> (-0.24%)	⬇️
src/pipe_wrap.cc	78.21% <71.92%> (-3.09%)	⬇️

... and 31 files with indirect coverage changes

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[Tseian]

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