github.com/hugh712/snapd@v0.0.0-20200910133618-1a99902bd583/sanity/cgroup.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2019 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package sanity
    21  
    22  import (
    23  	"fmt"
    24  
    25  	"github.com/snapcore/snapd/sandbox/cgroup"
    26  )
    27  
    28  func init() {
    29  	checks = append(checks, checkCgroup)
    30  }
    31  
    32  func checkCgroup() error {
    33  	v, err := cgroup.Version()
    34  	if err != nil {
    35  		return fmt.Errorf("snapd could not probe cgroup version: %v", err)
    36  	}
    37  	if v == cgroup.Unknown {
    38  		return fmt.Errorf("snapd could not determine cgroup version")
    39  	}
    40  
    41  	return nil
    42  }