-
Notifications
You must be signed in to change notification settings - Fork 2
/
fs.go
51 lines (47 loc) · 1 KB
/
fs.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
package godemon
import (
"fmt"
"os"
"runtime"
"syscall"
)
func exists(path string) (bool, error) {
_, err := os.Stat(path)
if err != nil {
if os.IsNotExist(err) {
return false, nil
}
return false, err
}
return true, nil
}
func isDir(path string) bool {
s, err := os.Stat(path)
if os.IsNotExist(err) {
return false
}
if err != nil {
warnf("%s", err)
return false
}
return s.IsDir()
}
func setMaxRLimit() error {
var limit syscall.Rlimit
if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &limit); err != nil {
return fmt.Errorf("get existing open files limit: %s", err)
}
if runtime.GOOS == "darwin" && limit.Max > 10240 {
// The max file limit is 10240, even though
// the max returned by Getrlimit is 1<<63-1.
// This is OPEN_MAX in sys/syslimits.h.
limit.Max = 10240
}
if limit.Cur != limit.Max {
limit.Cur = limit.Max
if err := syscall.Setrlimit(syscall.RLIMIT_NOFILE, &limit); err != nil {
return fmt.Errorf("increase open files limit: %s", err)
}
}
return nil
}