show message when process doesnt end with code 0

lib/process/processLauncher.js

@@ -1,6 +1,6 @@
 const child_process = require('child_process');
 const constants = require('../constants');
-
+const path = require('path');
 
 class ProcessLauncher {
 
@@ -14,11 +14,13 @@ class ProcessLauncher {
    * @return {ProcessLauncher}    The ProcessLauncher instance
    */
   constructor(options) {
+    this.name = path.basename(options.modulePath);
     this.process = child_process.fork(options.modulePath);
     this.logger = options.logger;
     this.normalizeInput = options.normalizeInput;
     this.events = options.events;
     this.silent = options.silent;
+    this.exitCallback = options.exitCallback;
 
     this.subscriptions = {};
     this._subscribeToMessages();
@@ -38,7 +40,12 @@ class ProcessLauncher {
     });
 
     this.process.on('exit', (code) => {
-      self.logger.info('Process exited with code ' + code);
+      if (self.exitCallback) {
+        return self.exitCallback(code);
+      }
+      if (code) {
+        this.logger.info(`Child Process ${this.name} exited with code ${code}`);
+      }
     });
   }
 

lib/processes/blockchainProcessLauncher.js

@@ -12,6 +12,10 @@ class BlockchainProcessLauncher {
     this.locale = options.locale;
   }
 
+  processEnded(code) {
+    this.logger.error('Blockchain process ended before the end of this process. Code: ' + code);
+  }
+
   startBlockchainNode() {
     this.logger.info('Starting Blockchain node in another process'.cyan);
 
@@ -20,7 +24,8 @@ class BlockchainProcessLauncher {
       logger: this.logger,
       events: this.events,
       normalizeInput: this.normalizeInput,
-      silent: true
+      silent: true,
+      exitCallback: this.processEnded.bind(this)
     });
     this.blockchainProcess.send({
       action: constants.blockchain.init, options: {