mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
28 lines
450 B
Go
28 lines
450 B
Go
|
package fileutils
|
||
|
|
|
||
|
|
import (
|
||
|
|
"os"
|
||
|
|
"os/exec"
|
||
|
|
"strconv"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
// GetTotalUsedFds returns the number of used File Descriptors by
|
||
|
|
// executing `lsof -p PID`
|
||
|
|
func GetTotalUsedFds() int {
|
||
|
|
pid := os.Getpid()
|
||
|
|
|
||
|
|
cmd := exec.Command("lsof", "-p", strconv.Itoa(pid))
|
||
|
|
|
||
|
|
output, err := cmd.CombinedOutput()
|
||
|
|
if err != nil {
|
||
|
|
return -1
|
||
|
|
}
|
||
|
|
|
||
|
|
outputStr := strings.TrimSpace(string(output))
|
||
|
|
|
||
|
|
fds := strings.Split(outputStr, "\n")
|
||
|
|
|
||
|
|
return len(fds) - 1
|
||
|
|
}
|