benchmark: missing process.exit after bench.end

Previously bench.end would call process.exit(0) however this is rather
confusing and indeed a few benchmarks had code that assumed otherwise.

This adds process.exit(0) to the benchmarks that needs it.

Author: AndreasMadsen

benchmark/dgram/array-vs-concat.js

@@ -67,6 +67,7 @@ function server() {
       var bytes = sent * len;
       var gbits = (bytes * 8) / (1024 * 1024 * 1024);
       bench.end(gbits);
+      process.exit(0);
     }, dur * 1000);
   });
 

benchmark/dgram/multi-buffer.js

@@ -58,6 +58,7 @@ function server() {
       var bytes = (type === 'send' ? sent : received) * len;
       var gbits = (bytes * 8) / (1024 * 1024 * 1024);
       bench.end(gbits);
+      process.exit(0);
     }, dur * 1000);
   });
 

benchmark/dgram/offset-length.js

@@ -50,6 +50,7 @@ function server() {
       var bytes = (type === 'send' ? sent : received) * chunk.length;
       var gbits = (bytes * 8) / (1024 * 1024 * 1024);
       bench.end(gbits);
+      process.exit(0);
     }, dur * 1000);
   });
 

benchmark/dgram/single-buffer.js

@@ -50,6 +50,7 @@ function server() {
       var bytes = (type === 'send' ? sent : received) * chunk.length;
       var gbits = (bytes * 8) / (1024 * 1024 * 1024);
       bench.end(gbits);
+      process.exit(0);
     }, dur * 1000);
   });
 

benchmark/fs/readfile.js

@@ -26,6 +26,7 @@ function main(conf) {
   setTimeout(function() {
     bench.end(reads);
     try { fs.unlinkSync(filename); } catch (e) {}
+    process.exit(0);
   }, +conf.dur * 1000);
 
   function read() {

benchmark/http/_chunky_http_client.js

@@ -81,6 +81,7 @@ function main(conf) {
         count += 1;
         if (count === num) {
           bench.end(count);
+          process.exit(0);
         } else {
           WriteHTTPHeaders(socket, 1, min + size);
         }

benchmark/http/client-request-body.js

@@ -65,5 +65,6 @@ function main(conf) {
 
   function done() {
     bench.end(nreqs);
+    process.exit(0);
   }
 }

benchmark/net/net-c2s-cork.js

@@ -84,6 +84,7 @@ function server() {
         var bytes = writer.received;
         var gbits = (bytes * 8) / (1024 * 1024 * 1024);
         bench.end(gbits);
+        process.exit(0);
       }, dur * 1000);
 
       function send() {

benchmark/net/net-c2s.js

@@ -106,6 +106,7 @@ function server() {
         var bytes = writer.received;
         var gbits = (bytes * 8) / (1024 * 1024 * 1024);
         bench.end(gbits);
+        process.exit(0);
       }, dur * 1000);
     });
   });

benchmark/net/net-pipe.js

@@ -109,6 +109,7 @@ function server() {
         var bytes = writer.received * 2;
         var gbits = (bytes * 8) / (1024 * 1024 * 1024);
         bench.end(gbits);
+        process.exit(0);
       }, dur * 1000);
     });
   });