fb6147ca94
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Signed-off-by: Adrian Cole <adrian@tetrate.io>
46 lines
1.2 KiB
Go
46 lines
1.2 KiB
Go
package sysfs
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import (
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"syscall"
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_ "unsafe" // for go:linkname
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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_NOW = -1
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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, times *[2]syscall.Timespec) error {
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var flags int
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return utimensat(_AT_FDCWD, path, times, flags)
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}
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func futimens(fd uintptr, times *[2]syscall.Timespec) error {
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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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if e1 != 0 {
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return e1
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}
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return nil
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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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