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