mirror of
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52 lines
1.4 KiB
Go
52 lines
1.4 KiB
Go
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package sysfs
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import (
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"syscall"
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_ "unsafe"
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experimentalsys "github.com/tetratelabs/wazero/experimental/sys"
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)
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const (
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_AT_FDCWD = -0x2
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_AT_SYMLINK_NOFOLLOW = 0x0020
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_UTIME_OMIT = -2
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)
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//go:noescape
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//go:linkname utimensat syscall.utimensat
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func utimensat(dirfd int, path string, times *[2]syscall.Timespec, flags int) error
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func utimens(path string, atim, mtim int64) experimentalsys.Errno {
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times := timesToTimespecs(atim, mtim)
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if times == nil {
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return 0
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}
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var flags int
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return experimentalsys.UnwrapOSError(utimensat(_AT_FDCWD, path, times, flags))
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}
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func futimens(fd uintptr, atim, mtim int64) experimentalsys.Errno {
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times := timesToTimespecs(atim, mtim)
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if times == nil {
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return 0
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}
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_p0 := timesToPtr(times)
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// Warning: futimens only exists since High Sierra (10.13).
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_, _, e1 := syscall_syscall6(libc_futimens_trampoline_addr, fd, uintptr(_p0), 0, 0, 0, 0)
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return experimentalsys.UnwrapOSError(e1)
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}
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// libc_futimens_trampoline_addr is the address of the
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// `libc_futimens_trampoline` symbol, defined in `futimens_darwin.s`.
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//
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// We use this to invoke the syscall through syscall_syscall6 imported below.
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var libc_futimens_trampoline_addr uintptr
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// Imports the futimens symbol from libc as `libc_futimens`.
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//
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// Note: CGO mechanisms are used in darwin regardless of the CGO_ENABLED value
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// or the "cgo" build flag. See /RATIONALE.md for why.
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//go:cgo_import_dynamic libc_futimens futimens "/usr/lib/libSystem.B.dylib"
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