Altair-sh
25 lines
755 B
Go
25 lines
755 B
Go
//go:build linux || darwin || freebsd
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// "_unix" is not a special file name suffix for Go, so the OS list is in the //go:build line.
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// Not "unix": openbsd and netbsd have different Statfs_t or no syscall.Statfs.
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package disk_usage
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import "syscall"
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func diskUsage(path string) (Usage, error) {
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var st syscall.Statfs_t
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if err := syscall.Statfs(path, &st); err != nil {
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return Usage{}, err
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}
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// Field types differ between OSes, int64() works for all of them.
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bsize := int64(st.Bsize)
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return Usage{
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Total: int64(st.Blocks) * bsize,
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// Bfree: all free blocks, including reserved for root
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Used: (int64(st.Blocks) - int64(st.Bfree)) * bsize,
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// Bavail: free blocks available to unprivileged users
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Free: int64(st.Bavail) * bsize,
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}, nil
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}
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