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package main
import (
"fmt"
"time"
)
func deal() {
defer wg.Done()
var cooked Event
var ok bool
for {
cooked, ok = <-cookedChan
if !ok {
break
}
// type Event struct {
// timestamp time.Time
// pid, ppid int
// syscall int
// argc int
// args []string
// cwd string
// }
// type process struct {
// timestamp time.Time
// pid, ppid int
// argv []string
// cwd string
// rootfs string
// children []int
// }
switch syscallTable[cooked.syscall] {
case "fork", "vfork", "clone":
ppid := cooked.ppid
pid := cooked.pid
parent, ok := pids.Load(ppid)
if !ok {
break
}
parent.(*process).children = append(parent.(*process).children, pid)
pids.Store(pid, &process{
timestamp: cooked.timestamp,
pid: cooked.pid,
ppid: cooked.ppid,
argv: cooked.argv,
cwd: cooked.cwd,
children: make([]int, 0),
})
fmt.Printf("%v syscall=%d, ppid=%d, pid=%d, cwd=\"%s\", argc=%d, ", cooked.timestamp, cooked.syscall, cooked.ppid, cooked.pid, cooked.cwd, cooked.argc)
for i := 0; i < cooked.argc; i++ {
fmt.Printf("arg[%d]=\"%s\", ", i, cooked.argv[i])
}
fmt.Printf("\n")
case "exit", "exit_group":
_, ok := pids.Load(cooked.pid)
if !ok {
break
}
go deletePid(cooked)
}
}
}
func deletePid(cooked Event) {
time.Sleep(1 * time.Second)
Process, ok := pids.Load(cooked.pid)
if !ok {
return
}
pProcess := Process.(*process)
// 先从爹那里注销户籍
parent, ok := pids.Load(pProcess.ppid)
if ok {
pParent := parent.(*process)
for i, child := range pParent.children {
if child == pProcess.pid {
pParent.children = append(pParent.children[:i], pParent.children[i+1:]...)
break
}
}
}
// 子进程需要收容
for i := 0; i < len(pProcess.children); i++ {
child, ok := pids.Load(pProcess.children[i])
if ok {
child.(*process).ppid = 1
}
}
// 可以去死了
pids.Delete(cooked.pid)
_, ok = pids.Load(cooked.pid)
fmt.Printf("%v Goodbye, %d! ok = %v\n", time.Now(), cooked.pid, ok)
}
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