Add support for shm-size.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

Closes: #206
Approved by: TomSweeneyRedHat

1 files changed, 0 insertions, 556 deletions

diff --git a/vendor/github.com/prometheus/procfs/mountstats.go b/vendor/github.com/prometheus/procfs/mountstats.go
deleted file mode 100644
index 6b2b0ba9d..000000000
--- a/vendor/github.com/prometheus/procfs/mountstats.go
+++ /dev/null
@@ -1,556 +0,0 @@
-package procfs
-
-// While implementing parsing of /proc/[pid]/mountstats, this blog was used
-// heavily as a reference:
-//   https://utcc.utoronto.ca/~cks/space/blog/linux/NFSMountstatsIndex
-//
-// Special thanks to Chris Siebenmann for all of his posts explaining the
-// various statistics available for NFS.
-
-import (
-	"bufio"
-	"fmt"
-	"io"
-	"strconv"
-	"strings"
-	"time"
-)
-
-// Constants shared between multiple functions.
-const (
-	deviceEntryLen = 8
-
-	fieldBytesLen  = 8
-	fieldEventsLen = 27
-
-	statVersion10 = "1.0"
-	statVersion11 = "1.1"
-
-	fieldTransport10Len = 10
-	fieldTransport11Len = 13
-)
-
-// A Mount is a device mount parsed from /proc/[pid]/mountstats.
-type Mount struct {
-	// Name of the device.
-	Device string
-	// The mount point of the device.
-	Mount string
-	// The filesystem type used by the device.
-	Type string
-	// If available additional statistics related to this Mount.
-	// Use a type assertion to determine if additional statistics are available.
-	Stats MountStats
-}
-
-// A MountStats is a type which contains detailed statistics for a specific
-// type of Mount.
-type MountStats interface {
-	mountStats()
-}
-
-// A MountStatsNFS is a MountStats implementation for NFSv3 and v4 mounts.
-type MountStatsNFS struct {
-	// The version of statistics provided.
-	StatVersion string
-	// The age of the NFS mount.
-	Age time.Duration
-	// Statistics related to byte counters for various operations.
-	Bytes NFSBytesStats
-	// Statistics related to various NFS event occurrences.
-	Events NFSEventsStats
-	// Statistics broken down by filesystem operation.
-	Operations []NFSOperationStats
-	// Statistics about the NFS RPC transport.
-	Transport NFSTransportStats
-}
-
-// mountStats implements MountStats.
-func (m MountStatsNFS) mountStats() {}
-
-// A NFSBytesStats contains statistics about the number of bytes read and written
-// by an NFS client to and from an NFS server.
-type NFSBytesStats struct {
-	// Number of bytes read using the read() syscall.
-	Read uint64
-	// Number of bytes written using the write() syscall.
-	Write uint64
-	// Number of bytes read using the read() syscall in O_DIRECT mode.
-	DirectRead uint64
-	// Number of bytes written using the write() syscall in O_DIRECT mode.
-	DirectWrite uint64
-	// Number of bytes read from the NFS server, in total.
-	ReadTotal uint64
-	// Number of bytes written to the NFS server, in total.
-	WriteTotal uint64
-	// Number of pages read directly via mmap()'d files.
-	ReadPages uint64
-	// Number of pages written directly via mmap()'d files.
-	WritePages uint64
-}
-
-// A NFSEventsStats contains statistics about NFS event occurrences.
-type NFSEventsStats struct {
-	// Number of times cached inode attributes are re-validated from the server.
-	InodeRevalidate uint64
-	// Number of times cached dentry nodes are re-validated from the server.
-	DnodeRevalidate uint64
-	// Number of times an inode cache is cleared.
-	DataInvalidate uint64
-	// Number of times cached inode attributes are invalidated.
-	AttributeInvalidate uint64
-	// Number of times files or directories have been open()'d.
-	VFSOpen uint64
-	// Number of times a directory lookup has occurred.
-	VFSLookup uint64
-	// Number of times permissions have been checked.
-	VFSAccess uint64
-	// Number of updates (and potential writes) to pages.
-	VFSUpdatePage uint64
-	// Number of pages read directly via mmap()'d files.
-	VFSReadPage uint64
-	// Number of times a group of pages have been read.
-	VFSReadPages uint64
-	// Number of pages written directly via mmap()'d files.
-	VFSWritePage uint64
-	// Number of times a group of pages have been written.
-	VFSWritePages uint64
-	// Number of times directory entries have been read with getdents().
-	VFSGetdents uint64
-	// Number of times attributes have been set on inodes.
-	VFSSetattr uint64
-	// Number of pending writes that have been forcefully flushed to the server.
-	VFSFlush uint64
-	// Number of times fsync() has been called on directories and files.
-	VFSFsync uint64
-	// Number of times locking has been attempted on a file.
-	VFSLock uint64
-	// Number of times files have been closed and released.
-	VFSFileRelease uint64
-	// Unknown.  Possibly unused.
-	CongestionWait uint64
-	// Number of times files have been truncated.
-	Truncation uint64
-	// Number of times a file has been grown due to writes beyond its existing end.
-	WriteExtension uint64
-	// Number of times a file was removed while still open by another process.
-	SillyRename uint64
-	// Number of times the NFS server gave less data than expected while reading.
-	ShortRead uint64
-	// Number of times the NFS server wrote less data than expected while writing.
-	ShortWrite uint64
-	// Number of times the NFS server indicated EJUKEBOX; retrieving data from
-	// offline storage.
-	JukeboxDelay uint64
-	// Number of NFS v4.1+ pNFS reads.
-	PNFSRead uint64
-	// Number of NFS v4.1+ pNFS writes.
-	PNFSWrite uint64
-}
-
-// A NFSOperationStats contains statistics for a single operation.
-type NFSOperationStats struct {
-	// The name of the operation.
-	Operation string
-	// Number of requests performed for this operation.
-	Requests uint64
-	// Number of times an actual RPC request has been transmitted for this operation.
-	Transmissions uint64
-	// Number of times a request has had a major timeout.
-	MajorTimeouts uint64
-	// Number of bytes sent for this operation, including RPC headers and payload.
-	BytesSent uint64
-	// Number of bytes received for this operation, including RPC headers and payload.
-	BytesReceived uint64
-	// Duration all requests spent queued for transmission before they were sent.
-	CumulativeQueueTime time.Duration
-	// Duration it took to get a reply back after the request was transmitted.
-	CumulativeTotalResponseTime time.Duration
-	// Duration from when a request was enqueued to when it was completely handled.
-	CumulativeTotalRequestTime time.Duration
-}
-
-// A NFSTransportStats contains statistics for the NFS mount RPC requests and
-// responses.
-type NFSTransportStats struct {
-	// The local port used for the NFS mount.
-	Port uint64
-	// Number of times the client has had to establish a connection from scratch
-	// to the NFS server.
-	Bind uint64
-	// Number of times the client has made a TCP connection to the NFS server.
-	Connect uint64
-	// Duration (in jiffies, a kernel internal unit of time) the NFS mount has
-	// spent waiting for connections to the server to be established.
-	ConnectIdleTime uint64
-	// Duration since the NFS mount last saw any RPC traffic.
-	IdleTime time.Duration
-	// Number of RPC requests for this mount sent to the NFS server.
-	Sends uint64
-	// Number of RPC responses for this mount received from the NFS server.
-	Receives uint64
-	// Number of times the NFS server sent a response with a transaction ID
-	// unknown to this client.
-	BadTransactionIDs uint64
-	// A running counter, incremented on each request as the current difference
-	// ebetween sends and receives.
-	CumulativeActiveRequests uint64
-	// A running counter, incremented on each request by the current backlog
-	// queue size.
-	CumulativeBacklog uint64
-
-	// Stats below only available with stat version 1.1.
-
-	// Maximum number of simultaneously active RPC requests ever used.
-	MaximumRPCSlotsUsed uint64
-	// A running counter, incremented on each request as the current size of the
-	// sending queue.
-	CumulativeSendingQueue uint64
-	// A running counter, incremented on each request as the current size of the
-	// pending queue.
-	CumulativePendingQueue uint64
-}
-
-// parseMountStats parses a /proc/[pid]/mountstats file and returns a slice
-// of Mount structures containing detailed information about each mount.
-// If available, statistics for each mount are parsed as well.
-func parseMountStats(r io.Reader) ([]*Mount, error) {
-	const (
-		device            = "device"
-		statVersionPrefix = "statvers="
-
-		nfs3Type = "nfs"
-		nfs4Type = "nfs4"
-	)
-
-	var mounts []*Mount
-
-	s := bufio.NewScanner(r)
-	for s.Scan() {
-		// Only look for device entries in this function
-		ss := strings.Fields(string(s.Bytes()))
-		if len(ss) == 0 || ss[0] != device {
-			continue
-		}
-
-		m, err := parseMount(ss)
-		if err != nil {
-			return nil, err
-		}
-
-		// Does this mount also possess statistics information?
-		if len(ss) > deviceEntryLen {
-			// Only NFSv3 and v4 are supported for parsing statistics
-			if m.Type != nfs3Type && m.Type != nfs4Type {
-				return nil, fmt.Errorf("cannot parse MountStats for fstype %q", m.Type)
-			}
-
-			statVersion := strings.TrimPrefix(ss[8], statVersionPrefix)
-
-			stats, err := parseMountStatsNFS(s, statVersion)
-			if err != nil {
-				return nil, err
-			}
-
-			m.Stats = stats
-		}
-
-		mounts = append(mounts, m)
-	}
-
-	return mounts, s.Err()
-}
-
-// parseMount parses an entry in /proc/[pid]/mountstats in the format:
-//   device [device] mounted on [mount] with fstype [type]
-func parseMount(ss []string) (*Mount, error) {
-	if len(ss) < deviceEntryLen {
-		return nil, fmt.Errorf("invalid device entry: %v", ss)
-	}
-
-	// Check for specific words appearing at specific indices to ensure
-	// the format is consistent with what we expect
-	format := []struct {
-		i int
-		s string
-	}{
-		{i: 0, s: "device"},
-		{i: 2, s: "mounted"},
-		{i: 3, s: "on"},
-		{i: 5, s: "with"},
-		{i: 6, s: "fstype"},
-	}
-
-	for _, f := range format {
-		if ss[f.i] != f.s {
-			return nil, fmt.Errorf("invalid device entry: %v", ss)
-		}
-	}
-
-	return &Mount{
-		Device: ss[1],
-		Mount:  ss[4],
-		Type:   ss[7],
-	}, nil
-}
-
-// parseMountStatsNFS parses a MountStatsNFS by scanning additional information
-// related to NFS statistics.
-func parseMountStatsNFS(s *bufio.Scanner, statVersion string) (*MountStatsNFS, error) {
-	// Field indicators for parsing specific types of data
-	const (
-		fieldAge        = "age:"
-		fieldBytes      = "bytes:"
-		fieldEvents     = "events:"
-		fieldPerOpStats = "per-op"
-		fieldTransport  = "xprt:"
-	)
-
-	stats := &MountStatsNFS{
-		StatVersion: statVersion,
-	}
-
-	for s.Scan() {
-		ss := strings.Fields(string(s.Bytes()))
-		if len(ss) == 0 {
-			break
-		}
-		if len(ss) < 2 {
-			return nil, fmt.Errorf("not enough information for NFS stats: %v", ss)
-		}
-
-		switch ss[0] {
-		case fieldAge:
-			// Age integer is in seconds
-			d, err := time.ParseDuration(ss[1] + "s")
-			if err != nil {
-				return nil, err
-			}
-
-			stats.Age = d
-		case fieldBytes:
-			bstats, err := parseNFSBytesStats(ss[1:])
-			if err != nil {
-				return nil, err
-			}
-
-			stats.Bytes = *bstats
-		case fieldEvents:
-			estats, err := parseNFSEventsStats(ss[1:])
-			if err != nil {
-				return nil, err
-			}
-
-			stats.Events = *estats
-		case fieldTransport:
-			if len(ss) < 3 {
-				return nil, fmt.Errorf("not enough information for NFS transport stats: %v", ss)
-			}
-
-			tstats, err := parseNFSTransportStats(ss[2:], statVersion)
-			if err != nil {
-				return nil, err
-			}
-
-			stats.Transport = *tstats
-		}
-
-		// When encountering "per-operation statistics", we must break this
-		// loop and parse them separately to ensure we can terminate parsing
-		// before reaching another device entry; hence why this 'if' statement
-		// is not just another switch case
-		if ss[0] == fieldPerOpStats {
-			break
-		}
-	}
-
-	if err := s.Err(); err != nil {
-		return nil, err
-	}
-
-	// NFS per-operation stats appear last before the next device entry
-	perOpStats, err := parseNFSOperationStats(s)
-	if err != nil {
-		return nil, err
-	}
-
-	stats.Operations = perOpStats
-
-	return stats, nil
-}
-
-// parseNFSBytesStats parses a NFSBytesStats line using an input set of
-// integer fields.
-func parseNFSBytesStats(ss []string) (*NFSBytesStats, error) {
-	if len(ss) != fieldBytesLen {
-		return nil, fmt.Errorf("invalid NFS bytes stats: %v", ss)
-	}
-
-	ns := make([]uint64, 0, fieldBytesLen)
-	for _, s := range ss {
-		n, err := strconv.ParseUint(s, 10, 64)
-		if err != nil {
-			return nil, err
-		}
-
-		ns = append(ns, n)
-	}
-
-	return &NFSBytesStats{
-		Read:        ns[0],
-		Write:       ns[1],
-		DirectRead:  ns[2],
-		DirectWrite: ns[3],
-		ReadTotal:   ns[4],
-		WriteTotal:  ns[5],
-		ReadPages:   ns[6],
-		WritePages:  ns[7],
-	}, nil
-}
-
-// parseNFSEventsStats parses a NFSEventsStats line using an input set of
-// integer fields.
-func parseNFSEventsStats(ss []string) (*NFSEventsStats, error) {
-	if len(ss) != fieldEventsLen {
-		return nil, fmt.Errorf("invalid NFS events stats: %v", ss)
-	}
-
-	ns := make([]uint64, 0, fieldEventsLen)
-	for _, s := range ss {
-		n, err := strconv.ParseUint(s, 10, 64)
-		if err != nil {
-			return nil, err
-		}
-
-		ns = append(ns, n)
-	}
-
-	return &NFSEventsStats{
-		InodeRevalidate:     ns[0],
-		DnodeRevalidate:     ns[1],
-		DataInvalidate:      ns[2],
-		AttributeInvalidate: ns[3],
-		VFSOpen:             ns[4],
-		VFSLookup:           ns[5],
-		VFSAccess:           ns[6],
-		VFSUpdatePage:       ns[7],
-		VFSReadPage:         ns[8],
-		VFSReadPages:        ns[9],
-		VFSWritePage:        ns[10],
-		VFSWritePages:       ns[11],
-		VFSGetdents:         ns[12],
-		VFSSetattr:          ns[13],
-		VFSFlush:            ns[14],
-		VFSFsync:            ns[15],
-		VFSLock:             ns[16],
-		VFSFileRelease:      ns[17],
-		CongestionWait:      ns[18],
-		Truncation:          ns[19],
-		WriteExtension:      ns[20],
-		SillyRename:         ns[21],
-		ShortRead:           ns[22],
-		ShortWrite:          ns[23],
-		JukeboxDelay:        ns[24],
-		PNFSRead:            ns[25],
-		PNFSWrite:           ns[26],
-	}, nil
-}
-
-// parseNFSOperationStats parses a slice of NFSOperationStats by scanning
-// additional information about per-operation statistics until an empty
-// line is reached.
-func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) {
-	const (
-		// Number of expected fields in each per-operation statistics set
-		numFields = 9
-	)
-
-	var ops []NFSOperationStats
-
-	for s.Scan() {
-		ss := strings.Fields(string(s.Bytes()))
-		if len(ss) == 0 {
-			// Must break when reading a blank line after per-operation stats to
-			// enable top-level function to parse the next device entry
-			break
-		}
-
-		if len(ss) != numFields {
-			return nil, fmt.Errorf("invalid NFS per-operations stats: %v", ss)
-		}
-
-		// Skip string operation name for integers
-		ns := make([]uint64, 0, numFields-1)
-		for _, st := range ss[1:] {
-			n, err := strconv.ParseUint(st, 10, 64)
-			if err != nil {
-				return nil, err
-			}
-
-			ns = append(ns, n)
-		}
-
-		ops = append(ops, NFSOperationStats{
-			Operation:                   strings.TrimSuffix(ss[0], ":"),
-			Requests:                    ns[0],
-			Transmissions:               ns[1],
-			MajorTimeouts:               ns[2],
-			BytesSent:                   ns[3],
-			BytesReceived:               ns[4],
-			CumulativeQueueTime:         time.Duration(ns[5]) * time.Millisecond,
-			CumulativeTotalResponseTime: time.Duration(ns[6]) * time.Millisecond,
-			CumulativeTotalRequestTime:  time.Duration(ns[7]) * time.Millisecond,
-		})
-	}
-
-	return ops, s.Err()
-}
-
-// parseNFSTransportStats parses a NFSTransportStats line using an input set of
-// integer fields matched to a specific stats version.
-func parseNFSTransportStats(ss []string, statVersion string) (*NFSTransportStats, error) {
-	switch statVersion {
-	case statVersion10:
-		if len(ss) != fieldTransport10Len {
-			return nil, fmt.Errorf("invalid NFS transport stats 1.0 statement: %v", ss)
-		}
-	case statVersion11:
-		if len(ss) != fieldTransport11Len {
-			return nil, fmt.Errorf("invalid NFS transport stats 1.1 statement: %v", ss)
-		}
-	default:
-		return nil, fmt.Errorf("unrecognized NFS transport stats version: %q", statVersion)
-	}
-
-	// Allocate enough for v1.1 stats since zero value for v1.1 stats will be okay
-	// in a v1.0 response.
-	//
-	// Note: slice length must be set to length of v1.1 stats to avoid a panic when
-	// only v1.0 stats are present.
-	// See: https://github.com/prometheus/node_exporter/issues/571.
-	ns := make([]uint64, fieldTransport11Len)
-	for i, s := range ss {
-		n, err := strconv.ParseUint(s, 10, 64)
-		if err != nil {
-			return nil, err
-		}
-
-		ns[i] = n
-	}
-
-	return &NFSTransportStats{
-		Port:                     ns[0],
-		Bind:                     ns[1],
-		Connect:                  ns[2],
-		ConnectIdleTime:          ns[3],
-		IdleTime:                 time.Duration(ns[4]) * time.Second,
-		Sends:                    ns[5],
-		Receives:                 ns[6],
-		BadTransactionIDs:        ns[7],
-		CumulativeActiveRequests: ns[8],
-		CumulativeBacklog:        ns[9],
-		MaximumRPCSlotsUsed:      ns[10],
-		CumulativeSendingQueue:   ns[11],
-		CumulativePendingQueue:   ns[12],
-	}, nil
-}