unix: add Linux watchdog structures and missing constants

This CL also adds the type-safe wrappers IoctlGetWatchdogInfo
and IoctlWatchdogKeepalive around the raw ioctl interface.

Change-Id: I98e3970807b28832e49524700b17b6b6f75d91ed
Reviewed-on: https://go-review.googlesource.com/c/sys/+/259497
Run-TryBot: Matt Layher <mdlayher@gmail.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Terin Stock <terinjokes@gmail.com>
Reviewed-by: Florian Lehner <lehner.florian86@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
This commit is contained in:
Matt Layher
2020-10-04 23:06:29 +00:00
parent fdedc70b46
commit f6757f2700
5 changed files with 45 additions and 1 deletions
+16
View File
@@ -106,6 +106,15 @@ func IoctlGetRTCTime(fd int) (*RTCTime, error) {
return &value, err
}
// IoctlGetWatchdogInfo fetches information about a watchdog device from the
// Linux watchdog API. For more information, see:
// https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html.
func IoctlGetWatchdogInfo(fd int) (*WatchdogInfo, error) {
var value WatchdogInfo
err := ioctl(fd, WDIOC_GETSUPPORT, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetRTCWkAlrm(fd int) (*RTCWkAlrm, error) {
var value RTCWkAlrm
err := ioctl(fd, RTC_WKALM_RD, uintptr(unsafe.Pointer(&value)))
@@ -137,6 +146,13 @@ func IoctlFileDedupeRange(destFd int, value *FileDedupeRange) error {
return err
}
// IoctlWatchdogKeepalive issues a keepalive ioctl to a watchdog device. For
// more information, see:
// https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html.
func IoctlWatchdogKeepalive(fd int) error {
return ioctl(fd, WDIOC_KEEPALIVE, 0)
}
//sys Linkat(olddirfd int, oldpath string, newdirfd int, newpath string, flags int) (err error)
func Link(oldpath string, newpath string) (err error) {