php-in-php: VmFsTouchNative/VmFsTempnamNative — pure PHP touch/tempnam, drop libc FFI (#1492)

[PurHur]

Category

php-in-php · follow-up #8999 / #8430 / #4401

Problem

VmFsTouchNative and VmFsTempnamNative are libc FFI-only (utime, mkstemp). With PHP_COMPILER_DISABLE_FFI=1, touch()/tempnam() fail while other VmFs paths have Pure fallbacks.

php-src reference

• ext/standard/filestat.c — touch
• ext/standard/file.c — tempnam

Scope

Path	Work
ext/standard/VmFsTouchPure.php	create via VmFsOpenPure; set times via bootstrap touch
ext/standard/VmFsTempnamPure.php	exclusive-create loop
ext/standard/VmFsTouchNative.php	delegate to Pure; delete FFI
ext/standard/VmFsTempnamNative.php	delegate to Pure; delete FFI
Tests	RuntimeShrink tests; FFI-disabled touch/tempnam

Done when

• PHP_COMPILER_DISABLE_FFI=1 touch/tempnam repro green on VM
• No FFI::cdef in Touch/Tempnam natives
• ./script/ci-fast.sh --filter FsTouch green

Refs #1492

[PurHur]

claim: PHP Runtime → PHP — batch (issues #12144, #12145)

[PurHur]

Merged via #12147. VmFsTouchPure + VmFsTempnamPure replace libc utime/mkstemp FFI (~180 lines removed). touch/tempnam work with PHP_COMPILER_DISABLE_FFI=1. Verified: phpunit filter VmFsTouchTempnam + spine sync + bootstrap-selfhost-vm-driver-execute-probe.