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33 lines
855 B
33 lines
855 B
package procfs |
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import ( |
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"fmt" |
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"os" |
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"path" |
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) |
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// FS represents the pseudo-filesystem proc, which provides an interface to |
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// kernel data structures. |
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type FS string |
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// DefaultMountPoint is the common mount point of the proc filesystem. |
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const DefaultMountPoint = "/proc" |
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// NewFS returns a new FS mounted under the given mountPoint. It will error |
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// if the mount point can't be read. |
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func NewFS(mountPoint string) (FS, error) { |
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info, err := os.Stat(mountPoint) |
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if err != nil { |
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return "", fmt.Errorf("could not read %s: %s", mountPoint, err) |
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} |
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if !info.IsDir() { |
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return "", fmt.Errorf("mount point %s is not a directory", mountPoint) |
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} |
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return FS(mountPoint), nil |
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} |
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// Path returns the path of the given subsystem relative to the procfs root. |
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func (fs FS) Path(p ...string) string { |
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return path.Join(append([]string{string(fs)}, p...)...) |
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}
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