Stats API: added GetMemory()

Retrieved numbers relate to the statseg heap.

Change-Id: I72750183db3524481918c71c993b39e65c28ddb6
Signed-off-by: Vladimir Lavor <vlavor@cisco.com>

4 files changed, 20 insertions, 13 deletions

diff --git a/examples/multi-vpp/multi_vpp.go b/examples/multi-vpp/multi_vpp.go
index c42f802..b207ae4 100644
--- a/examples/multi-vpp/multi_vpp.go
+++ b/examples/multi-vpp/multi_vpp.go
@@ -41,15 +41,15 @@ var (
 	statsSockAddrVpp2  = flag.String("stats-sock-2", statsclient.DefaultSocketName, "Path to stats socket file of the VPP2")
 )
 
-var Errors []error
+var errors []error
 
 func main() {
 	flag.Parse()
 	fmt.Println("Starting multi-vpp example")
 
 	defer func() {
-		if len(Errors) > 0 {
-			logInfo("Finished with %d errors\n", len(Errors))
+		if len(errors) > 0 {
+			logInfo("Finished with %d errors\n", len(errors))
 			os.Exit(1)
 		} else {
 			logInfo("Finished successfully\n")
@@ -347,5 +347,5 @@ func logInfo(format string, a ...interface{}) {
 // logError prints error message
 func logError(err error, msg string) {
 	fmt.Printf("[ERROR]: %s: %v\n", msg, err)
-	Errors = append(Errors, err)
+	errors = append(errors, err)
 }
diff --git a/examples/simple-client/simple_client.go b/examples/simple-client/simple_client.go
index 10a0ea6..3be2447 100644
--- a/examples/simple-client/simple_client.go
+++ b/examples/simple-client/simple_client.go
@@ -74,8 +74,8 @@ func main() {
 
 	// process errors encountered during the example
 	defer func() {
-		if len(Errors) > 0 {
-			fmt.Printf("finished with %d errors\n", len(Errors))
+		if len(errors) > 0 {
+			fmt.Printf("finished with %d errors\n", len(errors))
 			os.Exit(1)
 		} else {
 			fmt.Println("finished successfully")
@@ -302,9 +302,9 @@ func marshal(v interface{}) {
 	fmt.Printf("JSON: %s\n", b)
 }
 
-var Errors []error
+var errors []error
 
 func logError(err error, msg string) {
 	fmt.Printf("ERROR: %s: %v\n", msg, err)
-	Errors = append(Errors, err)
+	errors = append(errors, err)
 }
diff --git a/examples/stats-client/stats_api.go b/examples/stats-client/stats_api.go
index 288caea..b1846a6 100644
--- a/examples/stats-client/stats_api.go
+++ b/examples/stats-client/stats_api.go
@@ -43,7 +43,7 @@ var (
 
 func init() {
 	flag.Usage = func() {
-		fmt.Fprintf(os.Stderr, "%s: usage [ls|dump|poll|errors|interfaces|nodes|system|buffers] <patterns>...\n", os.Args[0])
+		fmt.Fprintf(os.Stderr, "%s: usage [ls|dump|poll|errors|interfaces|nodes|system|buffers|memory] <patterns>...\n", os.Args[0])
 		flag.PrintDefaults()
 		os.Exit(1)
 	}
@@ -129,6 +129,13 @@ func main() {
 		}
 		fmt.Printf("Buffer stats: %+v\n", stats)
 
+	case "memory":
+		stats := new(api.MemoryStats)
+		if err := c.GetMemoryStats(stats); err != nil {
+			log.Fatalln("getting memory stats failed:", err)
+		}
+		fmt.Printf("Memory stats: %+v\n", stats)
+
 	case "dump":
 		fmt.Printf("Dumping stats.. %s\n", strings.Join(patterns, " "))
 
diff --git a/examples/stream-client/stream_client.go b/examples/stream-client/stream_client.go
index fadfe23..f4af859 100644
--- a/examples/stream-client/stream_client.go
+++ b/examples/stream-client/stream_client.go
@@ -76,8 +76,8 @@ func main() {
 
 	// process errors encountered during the example
 	defer func() {
-		if len(Errors) > 0 {
-			fmt.Printf("finished with %d errors\n", len(Errors))
+		if len(errors) > 0 {
+			fmt.Printf("finished with %d errors\n", len(errors))
 			os.Exit(1)
 		} else {
 			fmt.Println("finished successfully")
@@ -294,9 +294,9 @@ Loop:
 	fmt.Println()
 }
 
-var Errors []error
+var errors []error
 
 func logError(err error, msg string) {
 	fmt.Printf("ERROR: %s: %v\n", msg, err)
-	Errors = append(Errors, err)
+	errors = append(errors, err)
 }