func (meter *process) sampleStatm() {
body, err := ioutil.ReadFile("/proc/self/statm")
if err != nil {
klog.KFatalf("meter.process.statm.error", err.Error())
}
var virt, rss, shared uint64
if _, err := fmt.Sscanf(string(body), "%d %d %d", &virt, &rss, &shared); err != nil {
klog.KFatalf("meter.process.statm.parse.error", err.Error())
}
meter.Memory.Resident.Change(float64(rss * 1000))
meter.Memory.Virtual.Change(float64(virt * 1000))
meter.Memory.Shared.Change(float64(shared * 1000))
}
// Register associates the given value's type with the short and fully qualified
// name.
func (reg *Registry) Register(value interface{}) {
if value == nil {
klog.KPanicf("blueprint.registry.error", "attempted to register nil")
}
typ := reflect.TypeOf(value)
for typ.Kind() == reflect.Ptr || typ.Kind() == reflect.Interface {
typ = typ.Elem()
}
reg.mutex.Lock()
if reg.types == nil {
reg.types = make(map[string]reflect.Type)
}
name := typ.Name()
if pkg := typ.PkgPath(); pkg != "" {
name = pkg + "/" + name
}
if _, ok := reg.types[name]; ok {
klog.KFatalf("blueprint.registry.error", "duplicate registration attempt for '%s'", name)
}
reg.types[name] = typ
// Add a shorthand alias to make life simpler.
if _, ok := reg.types[typ.Name()]; !ok {
reg.types[typ.Name()] = typ
}
reg.mutex.Unlock()
}
// RegisterConverter makes the given converter for the type of the given object.
func RegisterConverter(obj interface{}, conv Converter) {
convertersMutex.Lock()
defer convertersMutex.Unlock()
typ := reflect.TypeOf(obj)
if converters == nil {
converters = make(map[reflect.Type]Converter)
}
if _, ok := converters[typ]; ok {
klog.KFatalf("blueprint.converters.register.error", "duplicate converters for type '%s'", typ)
}
converters[typ] = conv
}
func (handler *HTTPHandler) init() {
if handler.URL == "" {
klog.KFatal("meter.http.init.error", "no URL configured")
}
if handler.Method == "" {
klog.KFatal("meter.http.init.error", "no HTTP method configured")
}
if _, err := url.Parse(handler.URL); err != nil {
klog.KFatalf("meter.http.init.error", "invalid URL '%s': %s", handler.URL, err)
}
if handler.HTTPClient == nil {
handler.HTTPClient = http.DefaultClient
}
handler.client = &rest.Client{
Client: handler.HTTPClient,
Root: handler.URL,
}
}
func (meter *process) rusage() (result syscall.Rusage) {
if err := syscall.Getrusage(syscall.RUSAGE_SELF, &result); err != nil {
klog.KFatalf("meter.process.rusage.error", err.Error())
}
return
}