blob: 02d98162bd0f95a0e5d56cbd8f342cf2354f6c9a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
//! Reboot/shutdown or enable/disable Ctrl-Alt-Delete.
use crate::errno::Errno;
use crate::Result;
use std::convert::Infallible;
use std::mem::drop;
libc_enum! {
/// How exactly should the system be rebooted.
///
/// See [`set_cad_enabled()`](fn.set_cad_enabled.html) for
/// enabling/disabling Ctrl-Alt-Delete.
#[repr(i32)]
#[non_exhaustive]
pub enum RebootMode {
/// Halt the system.
RB_HALT_SYSTEM,
/// Execute a kernel that has been loaded earlier with
/// [`kexec_load(2)`](https://man7.org/linux/man-pages/man2/kexec_load.2.html).
RB_KEXEC,
/// Stop the system and switch off power, if possible.
RB_POWER_OFF,
/// Restart the system.
RB_AUTOBOOT,
// we do not support Restart2.
/// Suspend the system using software suspend.
RB_SW_SUSPEND,
}
}
/// Reboots or shuts down the system.
pub fn reboot(how: RebootMode) -> Result<Infallible> {
unsafe { libc::reboot(how as libc::c_int) };
Err(Errno::last())
}
/// Enable or disable the reboot keystroke (Ctrl-Alt-Delete).
///
/// Corresponds to calling `reboot(RB_ENABLE_CAD)` or `reboot(RB_DISABLE_CAD)` in C.
pub fn set_cad_enabled(enable: bool) -> Result<()> {
let cmd = if enable {
libc::RB_ENABLE_CAD
} else {
libc::RB_DISABLE_CAD
};
let res = unsafe { libc::reboot(cmd) };
Errno::result(res).map(drop)
}
|
