23 lines
491 B
Go
23 lines
491 B
Go
//go:build !windows
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package store
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import (
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"errors"
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"math"
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"syscall"
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)
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func filesystemFreeBytes(path string) (uint64, error) {
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var status syscall.Statfs_t
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if err := syscall.Statfs(path, &status); err != nil {
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return 0, err
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}
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blockSize := uint64(status.Bsize)
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availableBlocks := uint64(status.Bavail)
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if blockSize != 0 && availableBlocks > math.MaxUint64/blockSize {
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return 0, errors.New("filesystem free-space value overflowed")
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}
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return availableBlocks * blockSize, nil
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}
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