243 lines
4.6 KiB
Go
243 lines
4.6 KiB
Go
// +build freebsd
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package gopsutil
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import (
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"bytes"
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"encoding/binary"
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"syscall"
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"unsafe"
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)
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// Memory_info_ex is different between OSes
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type Memory_info_exStat struct {
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}
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type Memory_mapsStat struct {
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}
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func Pids() ([]int32, error) {
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ret := make([]int32, 0)
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procs, err := processes()
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if err != nil {
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return ret, nil
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}
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for _, p := range procs {
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ret = append(ret, p.Pid)
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}
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return ret, nil
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}
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func (p *Process) Ppid() (int32, error) {
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return 0, nil
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}
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func (p *Process) Name() (string, error) {
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name := ""
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return name, nil
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}
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func (p *Process) Exe() (string, error) {
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return "", nil
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}
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func (p *Process) Cmdline() (string, error) {
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return "", nil
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}
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func (p *Process) Cwd() (string, error) {
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return "", nil
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}
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func (p *Process) Parent() (*Process, error) {
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return p, nil
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}
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func (p *Process) Status() (string, error) {
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return "", nil
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}
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func (p *Process) Username() (string, error) {
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return "", nil
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}
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func (p *Process) Uids() ([]int32, error) {
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uids := make([]int32, 0)
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return uids, nil
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}
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func (p *Process) Gids() ([]int32, error) {
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gids := make([]int32, 0)
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return gids, nil
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}
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func (p *Process) Terminal() (string, error) {
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return "", nil
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}
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func (p *Process) Nice() (int32, error) {
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return 0, nil
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}
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func (p *Process) Ionice() (int32, error) {
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return 0, nil
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}
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func (p *Process) Rlimit() ([]RlimitStat, error) {
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rlimit := make([]RlimitStat, 0)
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return rlimit, nil
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}
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func (p *Process) Io_counters() (*Io_countersStat, error) {
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return nil, nil
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}
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func (p *Process) Num_ctx_switches() (int32, error) {
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return 0, nil
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}
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func (p *Process) Num_fds() (int32, error) {
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return 0, nil
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}
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func (p *Process) Num_Threads() (int32, error) {
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return 0, nil
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}
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func (p *Process) Threads() (map[string]string, error) {
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ret := make(map[string]string, 0)
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return ret, nil
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}
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func (p *Process) Cpu_times() (*CPU_TimesStat, error) {
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return nil, nil
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}
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func (p *Process) Cpu_percent() (int32, error) {
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return 0, nil
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}
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func (p *Process) Cpu_affinity() ([]int32, error) {
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return nil, nil
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}
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func (p *Process) Memory_info() (*Memory_infoStat, error) {
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return nil, nil
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}
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func (p *Process) Memory_info_ex() (*Memory_info_exStat, error) {
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return nil, nil
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}
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func (p *Process) Memory_percent() (float32, error) {
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return 0, nil
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}
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func (p *Process) Children() ([]*Process, error) {
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return nil, nil
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}
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func (p *Process) Open_files() ([]Open_filesStat, error) {
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return nil, nil
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}
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func (p *Process) Connections() ([]Net_connectionStat, error) {
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return nil, nil
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}
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func (p *Process) Is_running() (bool, error) {
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return true, nil
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}
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func (p *Process) Memory_Maps() (*[]Memory_mapsStat, error) {
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ret := make([]Memory_mapsStat, 0)
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return &ret, nil
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}
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func copy_params(k *Kinfo_proc, p *Process) error {
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return nil
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}
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func processes() ([]Process, error) {
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results := make([]Process, 0, 50)
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mib := []int32{CTL_KERN, KERN_PROC, KERN_PROC_PROC, 0}
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buf, length, err := call_syscall(mib)
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if err != nil {
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return results, err
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}
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// get kinfo_proc size
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k := Kinfo_proc{}
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procinfo_len := int(unsafe.Sizeof(k))
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count := int(length / uint64(procinfo_len))
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// parse buf to procs
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for i := 0; i < count; i++ {
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b := buf[i*procinfo_len : i*procinfo_len+procinfo_len]
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k, err := parse_kinfo_proc(b)
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if err != nil {
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continue
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}
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p, err := NewProcess(int32(k.Ki_pid))
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if err != nil {
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continue
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}
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copy_params(&k, p)
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results = append(results, *p)
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}
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return results, nil
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}
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func parse_kinfo_proc(buf []byte) (Kinfo_proc, error) {
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var k Kinfo_proc
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br := bytes.NewReader(buf)
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err := binary.Read(br, binary.LittleEndian, &k)
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if err != nil {
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return k, err
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}
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return k, nil
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}
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func call_syscall(mib []int32) ([]byte, uint64, error) {
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miblen := uint64(len(mib))
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// get required buffer size
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length := uint64(0)
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_, _, err := syscall.Syscall6(
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syscall.SYS___SYSCTL,
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uintptr(unsafe.Pointer(&mib[0])),
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uintptr(miblen),
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0,
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uintptr(unsafe.Pointer(&length)),
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0,
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0)
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if err != 0 {
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b := make([]byte, 0)
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return b, length, err
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}
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if length == 0 {
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b := make([]byte, 0)
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return b, length, err
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}
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// get proc info itself
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buf := make([]byte, length)
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_, _, err = syscall.Syscall6(
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syscall.SYS___SYSCTL,
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uintptr(unsafe.Pointer(&mib[0])),
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uintptr(miblen),
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uintptr(unsafe.Pointer(&buf[0])),
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uintptr(unsafe.Pointer(&length)),
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0,
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0)
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if err != 0 {
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return buf, length, err
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}
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return buf, length, nil
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}
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func NewProcess(pid int32) (*Process, error) {
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p := &Process{Pid: pid}
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mib := []int32{CTL_KERN, KERN_PROC, KERN_PROC_PID, p.Pid}
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buf, length, err := call_syscall(mib)
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if err != nil {
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return nil, err
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}
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proc_k := Kinfo_proc{}
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if length != uint64(unsafe.Sizeof(proc_k)) {
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return nil, err
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}
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k, err := parse_kinfo_proc(buf)
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if err != nil {
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return nil, err
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}
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copy_params(&k, p)
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return p, nil
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}
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