tailscale/util/winutil/zsyscall_windows.go
Aaron Klotz ea693eacb6 util/winutil: add RegisterForRestart, allowing programs to indicate their preferences to the Windows restart manager
In order for the installer to restart the GUI correctly post-upgrade, we
need the GUI to be able to register its restart preferences.

This PR adds API support for doing so. I'm adding it to OSS so that it
is available should we need to do any such registrations on OSS binaries
in the future.

Updates https://github.com/tailscale/corp/issues/13998

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2023-08-22 15:06:48 -06:00

62 lines
1.7 KiB
Go

// Code generated by 'go generate'; DO NOT EDIT.
package winutil
import (
"syscall"
"unsafe"
"github.com/dblohm7/wingoes"
"golang.org/x/sys/windows"
)
var _ unsafe.Pointer
// Do the interface allocations only once for common
// Errno values.
const (
errnoERROR_IO_PENDING = 997
)
var (
errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
errERROR_EINVAL error = syscall.EINVAL
)
// errnoErr returns common boxed Errno values, to prevent
// allocations at runtime.
func errnoErr(e syscall.Errno) error {
switch e {
case 0:
return errERROR_EINVAL
case errnoERROR_IO_PENDING:
return errERROR_IO_PENDING
}
// TODO: add more here, after collecting data on the common
// error values see on Windows. (perhaps when running
// all.bat?)
return e
}
var (
modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
procQueryServiceConfig2W = modadvapi32.NewProc("QueryServiceConfig2W")
procRegisterApplicationRestart = modkernel32.NewProc("RegisterApplicationRestart")
)
func queryServiceConfig2(hService windows.Handle, infoLevel uint32, buf *byte, bufLen uint32, bytesNeeded *uint32) (err error) {
r1, _, e1 := syscall.Syscall6(procQueryServiceConfig2W.Addr(), 5, uintptr(hService), uintptr(infoLevel), uintptr(unsafe.Pointer(buf)), uintptr(bufLen), uintptr(unsafe.Pointer(bytesNeeded)), 0)
if r1 == 0 {
err = errnoErr(e1)
}
return
}
func registerApplicationRestart(cmdLineExclExeName *uint16, flags uint32) (ret wingoes.HRESULT) {
r0, _, _ := syscall.Syscall(procRegisterApplicationRestart.Addr(), 2, uintptr(unsafe.Pointer(cmdLineExclExeName)), uintptr(flags), 0)
ret = wingoes.HRESULT(r0)
return
}