68 lines
1.9 KiB
Go
68 lines
1.9 KiB
Go
package mountinfo
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import "io"
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// GetMounts retrieves a list of mounts for the current running process,
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// with an optional filter applied (use nil for no filter).
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func GetMounts(f FilterFunc) ([]*Info, error) {
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return parseMountTable(f)
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}
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// GetMountsFromReader retrieves a list of mounts from the
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// reader provided, with an optional filter applied (use nil
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// for no filter). This can be useful in tests or benchmarks
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// that provide a fake mountinfo data.
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func GetMountsFromReader(reader io.Reader, f FilterFunc) ([]*Info, error) {
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return parseInfoFile(reader, f)
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}
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// Mounted determines if a specified mountpoint has been mounted.
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// On Linux it looks at /proc/self/mountinfo.
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func Mounted(mountpoint string) (bool, error) {
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entries, err := GetMounts(SingleEntryFilter(mountpoint))
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if err != nil {
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return false, err
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}
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return len(entries) > 0, nil
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}
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// Info reveals information about a particular mounted filesystem. This
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// struct is populated from the content in the /proc/<pid>/mountinfo file.
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type Info struct {
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// ID is a unique identifier of the mount (may be reused after umount).
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ID int
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// Parent indicates the ID of the mount parent (or of self for the top of the
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// mount tree).
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Parent int
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// Major indicates one half of the device ID which identifies the device class.
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Major int
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// Minor indicates one half of the device ID which identifies a specific
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// instance of device.
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Minor int
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// Root of the mount within the filesystem.
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Root string
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// Mountpoint indicates the mount point relative to the process's root.
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Mountpoint string
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// Opts represents mount-specific options.
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Opts string
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// Optional represents optional fields.
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Optional string
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// Fstype indicates the type of filesystem, such as EXT3.
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Fstype string
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// Source indicates filesystem specific information or "none".
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Source string
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// VfsOpts represents per super block options.
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VfsOpts string
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}
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