ing

stat/cpu.go

@@ -1,8 +1,8 @@
 package stat
 
 import (
-	"io"
 	"bufio"
+	"io"
 	"strings"
 )
 
@@ -24,7 +24,7 @@ func (cpu CPUStat) Command() string {
 	return "cat /proc/stat"
 }
 
-func (cpu CPUStat) Parse(r io.Reader) ([]CPUStat, error) {
+func (cpu CPUStat) Parse(r io.Reader) (*[]CPUStat, error) {
 	var (
 		CPUStats = []CPUStat{}
 		scanner  = bufio.NewScanner(r)
@@ -63,5 +63,5 @@ func (cpu CPUStat) Parse(r io.Reader) ([]CPUStat, error) {
 		})
 	}
 
-	return CPUStats, scanner.Err()
+	return &CPUStats, scanner.Err()
 }

stat/disk_free.go

@@ -1,8 +1,8 @@
 package stat
 
 import (
-	"io"
 	"bufio"
+	"io"
 	"strings"
 )
 
@@ -19,7 +19,7 @@ func (diskFree DiskFreeStat) Command() string {
 	return "df -k"
 }
 
-func (diskio DiskFreeStat) Parse(r io.Reader) ([]DiskFreeStat, error) {
+func (diskio DiskFreeStat) Parse(r io.Reader) (*[]DiskFreeStat, error) {
 
 	var scanner = bufio.NewScanner(r)
 	var stats = []DiskFreeStat{}
@@ -29,21 +29,21 @@ func (diskio DiskFreeStat) Parse(r io.Reader) ([]DiskFreeStat, error) {
 		parts := strings.Fields(scanner.Text())
 		stats = append(stats, DiskFreeStat{
 			filesystem: parts[0],
-			size: parts[1],
-			used: parts[2],
-			available: parts[3],
-			usePerc: removePercUnit(parts[4]),
-			mountedOn: parts[5],
+			size:       parts[1],
+			used:       parts[2],
+			available:  parts[3],
+			usePerc:    removePercUnit(parts[4]),
+			mountedOn:  parts[5],
 		})
 	}
 
-	return stats, scanner.Err()
+	return &stats, scanner.Err()
 }
 
 func removePercUnit(str string) string {
-	if !strings.HasSuffix(str, "%"){
+	if !strings.HasSuffix(str, "%") {
 		return str
 	}
 	str = str[:len(str)-1]
 	return str
-}
+}

stat/disk_io.go

@@ -1,10 +1,10 @@
 package stat
 
 import (
-	"io"
 	"bufio"
-	"strings"
 	"fmt"
+	"io"
+	"strings"
 )
 
 type DiskIOStat struct {
@@ -26,10 +26,10 @@ func (diskio DiskIOStat) Command() string {
 	return "cat /proc/diskstats"
 }
 
-func (diskio DiskIOStat) Parse(r io.Reader) ([]DiskIOStat, error) {
+func (diskio DiskIOStat) Parse(r io.Reader) (*[]DiskIOStat, error) {
 	var (
-		DiskIOStats = []DiskIOStat{}
-		scanner   = bufio.NewScanner(r)
+		stats   = []DiskIOStat{}
+		scanner = bufio.NewScanner(r)
 	)
 
 	for scanner.Scan() {
@@ -41,7 +41,7 @@ func (diskio DiskIOStat) Parse(r io.Reader) ([]DiskIOStat, error) {
 		if !strings.HasPrefix(deviceName, "sd") {
 			continue
 		}
-		DiskIOStats = append(DiskIOStats, DiskIOStat{
+		stats = append(stats, DiskIOStat{
 			device:              deviceName,
 			readCompleted:       parts[3],
 			readMerged:          parts[4],
@@ -58,5 +58,5 @@ func (diskio DiskIOStat) Parse(r io.Reader) ([]DiskIOStat, error) {
 
 	}
 
-	return DiskIOStats, scanner.Err()
-}
+	return &stats, scanner.Err()
+}

stat/loadavg.go

@@ -1,8 +1,8 @@
 package stat
 
 import (
-	"io"
 	"bufio"
+	"io"
 	"strings"
 )
 
@@ -16,7 +16,7 @@ func (loadavg LoadAvg) Command() string {
 	return "cat /proc/loadavg"
 }
 
-func (loadavg LoadAvg) Parse(r io.Reader) (LoadAvg, error) {
+func (loadavg LoadAvg) Parse(r io.Reader) (*LoadAvg, error) {
 	var (
 		scanner = bufio.NewScanner(r)
 	)
@@ -29,5 +29,5 @@ func (loadavg LoadAvg) Parse(r io.Reader) (LoadAvg, error) {
 		load.min5 = parts[1]
 		load.min15 = parts[2]
 	}
-	return load, scanner.Err()
+	return &load, scanner.Err()
 }

stat/mem.go

@@ -1,20 +1,19 @@
 package stat
 
 import (
+	"bufio"
 	"io"
 	"strings"
-	"bufio"
 )
 
 type MemStat struct {
-
 }
 
 func (mem MemStat) Command() string {
 	return "cat /proc/meminfo"
 }
 
-func (mem MemStat) Parse(r io.Reader) (map[string]string, error) {
+func (mem MemStat) Parse(r io.Reader) (*map[string]string, error) {
 	var (
 		memInfo = map[string]string{}
 		scanner = bufio.NewScanner(r)
@@ -27,5 +26,5 @@ func (mem MemStat) Parse(r io.Reader) (map[string]string, error) {
 		memInfo[key] = parts[1]
 	}
 
-	return memInfo, scanner.Err()
+	return &memInfo, scanner.Err()
 }

stat/network.go

@@ -1,11 +1,11 @@
 package stat
 
 import (
-	"io"
 	"bufio"
+	"fmt"
+	"io"
 	"regexp"
 	"strings"
-	"fmt"
 )
 
 type NetDevStat struct {
@@ -32,7 +32,7 @@ func (net *NetDevStat) Command() string {
 	return "cat /proc/net/dev"
 }
 
-func (net *NetDevStat) Parse(r io.Reader) ([]NetDevStat, error) {
+func (net *NetDevStat) Parse(r io.Reader) (*[]NetDevStat, error) {
 	var (
 		scanner            = bufio.NewScanner(r)
 		procNetDevFieldSep = regexp.MustCompile("[ :] *")
@@ -75,5 +75,5 @@ func (net *NetDevStat) Parse(r io.Reader) ([]NetDevStat, error) {
 			transMulticast:  parts[16],
 		})
 	}
-	return netDevStats, scanner.Err()
-}
+	return &netDevStats, scanner.Err()
+}

stat/process.go

@@ -0,0 +1,43 @@
+package stat
+
+import (
+	"bufio"
+	"io"
+	"strings"
+)
+
+type ProcessStat struct {
+	user,
+	pid,
+	size,
+	pcpu,
+	pmem,
+	cmd string
+}
+
+func (ps *ProcessStat) Command() string {
+	return "ps -eo user,pid,size,pcpu,pmem,comm --sort=-pmem c"
+}
+
+func (ps *ProcessStat) Parse(r io.Reader) (*[]ProcessStat, error) {
+	var (
+		psStats = []ProcessStat{}
+		scanner = bufio.NewScanner(r)
+	)
+	scanner.Scan()
+	for scanner.Scan() {
+		line := scanner.Text()
+		parts := strings.Fields(line)
+		psStats = append(psStats, ProcessStat{
+			user: parts[0],
+			pid:  parts[1],
+			size: parts[2],
+			pcpu:  parts[3],
+			pmem:  parts[4],
+			cmd:  parts[5],
+		})
+	}
+
+	return &psStats, scanner.Err()
+}
+

stat/stat.go

@@ -1,8 +0,0 @@
-package stat
-
-import "io"
-
-type Stat interface {
-	Command() string
-	Parse(r io.Reader) (interface{}, error)
-}