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ps.go
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ps.go
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package system
import (
"os"
"github.com/influxdata/telegraf/internal"
"github.com/influxdata/telegraf/plugins/inputs"
"github.com/shirou/gopsutil/cpu"
"github.com/shirou/gopsutil/disk"
"github.com/shirou/gopsutil/mem"
"github.com/shirou/gopsutil/net"
)
type PS interface {
CPUTimes(perCPU, totalCPU bool) ([]cpu.CPUTimesStat, error)
DiskUsage(mountPointFilter []string) ([]*disk.DiskUsageStat, error)
NetIO() ([]net.NetIOCountersStat, error)
NetProto() ([]net.NetProtoCountersStat, error)
DiskIO() (map[string]disk.DiskIOCountersStat, error)
VMStat() (*mem.VirtualMemoryStat, error)
SwapStat() (*mem.SwapMemoryStat, error)
NetConnections() ([]net.NetConnectionStat, error)
}
func add(acc inputs.Accumulator,
name string, val float64, tags map[string]string) {
if val >= 0 {
acc.Add(name, val, tags)
}
}
type systemPS struct{}
func (s *systemPS) CPUTimes(perCPU, totalCPU bool) ([]cpu.CPUTimesStat, error) {
var cpuTimes []cpu.CPUTimesStat
if perCPU {
if perCPUTimes, err := cpu.CPUTimes(true); err == nil {
cpuTimes = append(cpuTimes, perCPUTimes...)
} else {
return nil, err
}
}
if totalCPU {
if totalCPUTimes, err := cpu.CPUTimes(false); err == nil {
cpuTimes = append(cpuTimes, totalCPUTimes...)
} else {
return nil, err
}
}
return cpuTimes, nil
}
func (s *systemPS) DiskUsage(
mountPointFilter []string,
) ([]*disk.DiskUsageStat, error) {
parts, err := disk.DiskPartitions(true)
if err != nil {
return nil, err
}
// Make a "set" out of the filter slice
filterSet := make(map[string]bool)
for _, filter := range mountPointFilter {
filterSet[filter] = true
}
var usage []*disk.DiskUsageStat
for _, p := range parts {
if len(mountPointFilter) > 0 {
// If the mount point is not a member of the filter set,
// don't gather info on it.
_, ok := filterSet[p.Mountpoint]
if !ok {
continue
}
}
if _, err := os.Stat(p.Mountpoint); err == nil {
du, err := disk.DiskUsage(p.Mountpoint)
if err != nil {
return nil, err
}
du.Fstype = p.Fstype
usage = append(usage, du)
}
}
return usage, nil
}
func (s *systemPS) NetProto() ([]net.NetProtoCountersStat, error) {
return net.NetProtoCounters(nil)
}
func (s *systemPS) NetIO() ([]net.NetIOCountersStat, error) {
return net.NetIOCounters(true)
}
func (s *systemPS) NetConnections() ([]net.NetConnectionStat, error) {
return net.NetConnections("all")
}
func (s *systemPS) DiskIO() (map[string]disk.DiskIOCountersStat, error) {
m, err := disk.DiskIOCounters()
if err == internal.NotImplementedError {
return nil, nil
}
return m, err
}
func (s *systemPS) VMStat() (*mem.VirtualMemoryStat, error) {
return mem.VirtualMemory()
}
func (s *systemPS) SwapStat() (*mem.SwapMemoryStat, error) {
return mem.SwapMemory()
}