func processes() ([]Process, error) {
results := make([]Process, 0, 50)
mib := []int32{CTLKern, KernProc, KernProcProc, 0}
buf, length, err := common.CallSyscall(mib)
if err != nil {
return results, err
}
// get kinfo_proc size
k := KinfoProc{}
procinfoLen := int(unsafe.Sizeof(k))
count := int(length / uint64(procinfoLen))
// parse buf to procs
for i := 0; i < count; i++ {
b := buf[i*procinfoLen : i*procinfoLen+procinfoLen]
k, err := parseKinfoProc(b)
if err != nil {
continue
}
p, err := NewProcess(int32(k.KiPid))
if err != nil {
continue
}
copyParams(&k, p)
results = append(results, *p)
}
return results, nil
}
func processes() ([]Process, error) {
results := make([]Process, 0, 50)
mib := []int32{CTLKern, KernProc, KernProcProc, 0}
buf, length, err := common.CallSyscall(mib)
if err != nil {
return results, err
}
// get kinfo_proc size
count := int(length / uint64(sizeOfKinfoProc))
// parse buf to procs
for i := 0; i < count; i++ {
b := buf[i*sizeOfKinfoProc : (i+1)*sizeOfKinfoProc]
k, err := parseKinfoProc(b)
if err != nil {
continue
}
p, err := NewProcess(int32(k.Pid))
if err != nil {
continue
}
results = append(results, *p)
}
return results, nil
}
func (p *Process) Cmdline() (string, error) {
mib := []int32{CTLKern, KernProc, KernProcArgs, p.Pid}
buf, _, err := common.CallSyscall(mib)
if err != nil {
return "", err
}
ret := strings.FieldsFunc(string(buf), func(r rune) bool {
if r == '\u0000' {
return true
}
return false
})
return strings.Join(ret, " "), nil
}
func (p *Process) getKProc() (*KinfoProc, error) {
mib := []int32{CTLKern, KernProc, KernProcPID, p.Pid}
buf, length, err := common.CallSyscall(mib)
if err != nil {
return nil, err
}
if length != sizeOfKinfoProc {
return nil, err
}
k, err := parseKinfoProc(buf)
if err != nil {
return nil, err
}
return &k, nil
}
func (p *Process) getKProc() (*KinfoProc, error) {
mib := []int32{CTLKern, KernProc, KernProcPID, p.Pid}
buf, length, err := common.CallSyscall(mib)
if err != nil {
return nil, err
}
procK := KinfoProc{}
if length != uint64(unsafe.Sizeof(procK)) {
return nil, err
}
k, err := parseKinfoProc(buf)
if err != nil {
return nil, err
}
return &k, nil
}
func DiskIOCounters() (map[string]DiskIOCountersStat, error) {
// statinfo->devinfo->devstat
// /usr/include/devinfo.h
// sysctl.sysctl ('kern.devstat.all', 0)
ret := make(map[string]DiskIOCountersStat)
mib := []int32{CTLKern, KernDevstat, KernDevstatAll}
buf, length, err := common.CallSyscall(mib)
if err != nil {
return nil, err
}
ds := Devstat{}
devstatLen := int(unsafe.Sizeof(ds))
count := int(length / uint64(devstatLen))
buf = buf[8:] // devstat.all has version in the head.
// parse buf to Devstat
for i := 0; i < count; i++ {
b := buf[i*devstatLen : i*devstatLen+devstatLen]
d, err := parseDevstat(b)
if err != nil {
continue
}
un := strconv.Itoa(int(d.Unit_number))
name := common.IntToString(d.Device_name[:]) + un
ds := DiskIOCountersStat{
ReadCount: d.Operations[DEVSTAT_READ],
WriteCount: d.Operations[DEVSTAT_WRITE],
ReadBytes: d.Bytes[DEVSTAT_READ],
WriteBytes: d.Bytes[DEVSTAT_WRITE],
ReadTime: d.Duration[DEVSTAT_READ].Compute(),
WriteTime: d.Duration[DEVSTAT_WRITE].Compute(),
Name: name,
}
ret[name] = ds
}
return ret, nil
}
func (p *Process) CmdlineSlice() ([]string, error) {
mib := []int32{CTLKern, KernProc, KernProcArgs, p.Pid}
buf, _, err := common.CallSyscall(mib)
if err != nil {
return nil, err
}
if len(buf) == 0 {
return nil, nil
}
if buf[len(buf)-1] == 0 {
buf = buf[:len(buf)-1]
}
parts := bytes.Split(buf, []byte{0})
var strParts []string
for _, p := range parts {
strParts = append(strParts, string(p))
}
return strParts, nil
}
func processes() ([]Process, error) {
results := make([]Process, 0, 50)
mib := []int32{CTLKern, KernProc, KernProcAll, 0}
buf, length, err := common.CallSyscall(mib)
if err != nil {
return results, err
}
// get kinfo_proc size
k := KinfoProc{}
procinfoLen := int(unsafe.Sizeof(k))
count := int(length / uint64(procinfoLen))
/*
fmt.Println(length, procinfoLen, count)
b := buf[0*procinfoLen : 0*procinfoLen+procinfoLen]
fmt.Println(b)
kk, err := parseKinfoProc(b)
fmt.Printf("%#v", kk)
*/
// parse buf to procs
for i := 0; i < count; i++ {
b := buf[i*procinfoLen : i*procinfoLen+procinfoLen]
k, err := parseKinfoProc(b)
if err != nil {
continue
}
p, err := NewProcess(int32(k.Proc.P_pid))
if err != nil {
continue
}
results = append(results, *p)
}
return results, nil
}