// +build linux freebsd | |
package fileutils // import "github.com/docker/docker/pkg/fileutils" | |
import ( | |
"fmt" | |
"io/ioutil" | |
"os" | |
"github.com/sirupsen/logrus" | |
) | |
// GetTotalUsedFds Returns the number of used File Descriptors by | |
// reading it via /proc filesystem. | |
func GetTotalUsedFds() int { | |
if fds, err := ioutil.ReadDir(fmt.Sprintf("/proc/%d/fd", os.Getpid())); err != nil { | |
logrus.Errorf("Error opening /proc/%d/fd: %s", os.Getpid(), err) | |
} else { | |
return len(fds) | |
} | |
return -1 | |
} |