41 lines
966 B
Go
41 lines
966 B
Go
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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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func (fs FS) stat(p string) (os.FileInfo, error) {
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return os.Stat(path.Join(string(fs), p))
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}
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func (fs FS) open(p string) (*os.File, error) {
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return os.Open(path.Join(string(fs), p))
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}
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func (fs FS) readlink(p string) (string, error) {
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return os.Readlink(path.Join(string(fs), p))
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}
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