Optimize socketclient adapter and add various code improvements

This commit includes:

Features
- optimized [socketclient](adapter/socketclient) adapter and add method to set client name
- added list of compatible messages to `CompatibilityError`

Fixes
- `MsgCodec` will recover panic occurring during a message decoding
- calling `Unsubscibe` will close the notification channel

Other
- improved log messages to provide more relevant info

Examples
- added more code samples of working with unions in [union example](examples/union-example)
- added profiling mode to [perf bench](examples/perf-bench) example
- improved [simple client](examples/simple-client) example to work properly even with multiple runs

Dependencies
- updated `github.com/sirupsen/logrus` dep to `v1.6.0`
- updated `github.com/lunixbochs/struc` dep to `v0.0.0-20200521075829-a4cb8d33dbbe`

Change-Id: I136a3968ccf9e93760d7ee2b9902fc7e6390a09d
Signed-off-by: Ondrej Fabry <ofabry@cisco.com>

1 files changed, 15 insertions, 8 deletions

diff --git a/version/version.go b/version/version.go
index eb8063a..8bde72c 100644
--- a/version/version.go
+++ b/version/version.go
@@ -21,14 +21,17 @@ import (
 	"time"
 )
 
+// Following variables should normally be updated via `-ldflags "-X ..."`.
+// However, the version string is hard-coded to ensure it is always included
+// even with bare go build/install.
 var (
-	name        = "govpp"
-	version     = "v0.3.5"
-	commitHash  = "unknown"
-	buildBranch = "HEAD"
-	buildStamp  = ""
-	buildUser   = ""
-	buildHost   = ""
+	name       = "govpp"
+	version    = "v0.4.0-dev"
+	commit     = "unknown"
+	branch     = "HEAD"
+	buildStamp = ""
+	buildUser  = ""
+	buildHost  = ""
 
 	buildDate time.Time
 )
@@ -41,6 +44,10 @@ func init() {
 	buildDate = time.Unix(buildstampInt64, 0)
 }
 
+func Version() string {
+	return version
+}
+
 func Info() string {
 	return fmt.Sprintf(`%s %s`, name, version)
 }
@@ -54,7 +61,7 @@ func Verbose() string {
   Build date:	%s
   Go runtime:	%s (%s/%s)`,
 		name,
-		version, buildBranch, commitHash,
+		version, branch, commit,
 		buildUser, buildHost, buildDate.Format(time.UnixDate),
 		runtime.Version(), runtime.GOOS, runtime.GOARCH,
 	)