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Improve performance of finding child processes on Windows

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This commit is contained in:
John Liu 2017-10-06 12:23:54 -04:00 committed by GitHub
parent a6cc94f428
commit d28c254aaf
1 changed files with 8 additions and 8 deletions
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16
process/process_windows.go
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@ -301,22 +301,22 @@ func (p *Process) MemoryInfoEx() (*MemoryInfoExStat, error) {
} }
func (p *Process) Children() ([]*Process, error) { func (p *Process) Children() ([]*Process, error) {
procs, err := processes() var dst []Win32_Process
query := wmi.CreateQuery(&dst, fmt.Sprintf("Where ParentProcessId = %d", p.Pid))
err := wmi.Query(query, &dst)
if err != nil { if err != nil {
return nil, err return nil, err
} }
out := []*Process{}
for _, proc := range procs { out := []*Process{}
parent, err := proc.Parent() for _, proc := range dst {
p, err := NewProcess(int32(proc.ProcessID))
if err != nil { if err != nil {
continue continue
} }
out = append(out, p)
if parent.Pid == p.Pid {
out = append(out, proc)
}
} }
return out, nil return out, nil
} }