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- // Copyright 2021 The go-ethereum Authors
- // This file is part of the go-ethereum library.
- //
- // The go-ethereum library is free software: you can redistribute it and/or modify
- // it under the terms of the GNU Lesser General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // The go-ethereum library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU Lesser General Public License for more details.
- //
- // You should have received a copy of the GNU Lesser General Public License
- // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
- // +build !windows,!openbsd
- package utils
- import (
- "fmt"
- "golang.org/x/sys/unix"
- )
- func getFreeDiskSpace(path string) (uint64, error) {
- var stat unix.Statfs_t
- if err := unix.Statfs(path, &stat); err != nil {
- return 0, fmt.Errorf("failed to call Statfs: %v", err)
- }
- // Available blocks * size per block = available space in bytes
- var bavail = stat.Bavail
- if stat.Bavail < 0 {
- // FreeBSD can have a negative number of blocks available
- // because of the grace limit.
- bavail = 0
- }
- //nolint:unconvert
- return uint64(bavail) * uint64(stat.Bsize), nil
- }
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