func HostInfo() (*HostInfoStat, error) {
ret := &HostInfoStat{
OS: runtime.GOOS,
}
hostname, err := os.Hostname()
if err == nil {
ret.Hostname = hostname
}
platform, family, version, err := GetPlatformInformation()
if err == nil {
ret.Platform = platform
ret.PlatformFamily = family
ret.PlatformVersion = version
} else {
return ret, err
}
boot, err := BootTime()
if err == nil {
ret.BootTime = boot
ret.Uptime = uptime(boot)
}
procs, err := process.Pids()
if err != nil {
return ret, err
}
ret.Procs = uint64(len(procs))
return ret, nil
}
//AdjustOOMPriorityByName Adjust the OOM adj value for the process' with the given name regexp
func (procs *Procs) AdjustOOMPriorityByName(processName string, value int, ignoreIfNonZero bool) error {
found := false
pids, err := process.Pids()
if err != nil {
return err
}
for _, pid := range pids {
// Find the process with the given name
if currProcess, err := process.NewProcess(pid); err != nil {
continue
} else if name, err := currProcess.Name(); err != nil || name != processName {
continue
} else if err := procs.AdjustOOMPriority(int(pid), value, ignoreIfNonZero); err == nil {
found = true
} else {
// Not an error but logging these for debugging.
log.Printf("Error adjusting OOM for process %s (pid %d): %s", processName, pid, err)
}
}
if found {
return nil
}
return fmt.Errorf("No process matches: %s\n", processName)
}