github.com/cs3org/reva/v2@v2.27.7/pkg/storage/utils/decomposedfs/node/node_unix.go (about)

     1  // Copyright 2018-2021 CERN
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  //
    15  // In applying this license, CERN does not waive the privileges and immunities
    16  // granted to it by virtue of its status as an Intergovernmental Organization
    17  // or submit itself to any jurisdiction.
    18  
    19  //go:build !windows
    20  // +build !windows
    21  
    22  package node
    23  
    24  import (
    25  	"syscall"
    26  )
    27  
    28  // GetAvailableSize stats the filesystem and return the available bytes
    29  func GetAvailableSize(path string) (uint64, error) {
    30  	stat := syscall.Statfs_t{}
    31  	err := syscall.Statfs(path, &stat)
    32  	if err != nil {
    33  		return 0, err
    34  	}
    35  
    36  	// convert stat.Bavail to uint64 because it returns an int64 on freebsd
    37  	return uint64(stat.Bavail) * uint64(stat.Bsize), nil //nolint:unconvert
    38  }