// NetIOStats get interface ios related stats
// Go equivalent to sg_get_network_io_stats
func (s *Stat) NetIOStats() []*NetIOStats {
s.Lock()
defer s.Unlock()
var num_network_stats C.size_t
var cArray *C.sg_network_io_stats = C.sg_get_network_io_stats_diff(&num_network_stats)
length := int(num_network_stats)
slice := (*[1 << 16]C.sg_network_io_stats)(unsafe.Pointer(cArray))[:length:length]
var res []*NetIOStats
for _, v := range slice {
n := &NetIOStats{
IntName: C.GoString(v.interface_name),
TX: int(v.tx),
RX: int(v.rx),
IPackets: int(v.ipackets),
OPackets: int(v.opackets),
IErrors: int(v.ierrors),
OErrors: int(v.oerrors),
Collisions: int(v.collisions),
}
res = append(res, n)
}
return res
}
// GetNetworkIoStatsDiff returns information about I/O transfers the last call for all networks, see sg_get_network_io_stats_diff(3).
func GetNetworkIoStatsDiff() ([]*NetworkIoStats, error) {
var ct C.int
c := C.sg_get_network_io_stats_diff(&ct)
if c == nil {
return nil, getError()
}
return asNetworkIoStatsArray(c, int(ct)), nil
}
// NewStat return a new Stat handle
func NewStat() *Stat {
s := &Stat{}
runtime.SetFinalizer(s, (*Stat).free)
initDone := make(chan bool)
s.exitMessage = make(chan bool)
C.sg_init(1)
go func() {
// We need some function calls to be performed on the same thread
// Those for which statgrab is using a thread local
runtime.LockOSThread()
defer runtime.UnlockOSThread()
// Throw away the first reading as thats averaged over the machines uptime
C.sg_get_cpu_stats_diff(nil)
C.sg_get_network_io_stats_diff(nil)
C.sg_get_page_stats_diff(nil)
C.sg_get_disk_io_stats_diff(nil)
initDone <- true
for {
select {
case <-s.exitMessage:
break
case f := <-mainfunc:
f()
}
}
}()
<-initDone
return s
}
