From e1e17a442d521701d488f6a7873f0755878cea03 Mon Sep 17 00:00:00 2001
From: Joao Duarte <jsvduarte@gmail.com>
Date: Mon, 12 Sep 2016 21:53:41 +0100
Subject: [PATCH 1/2] make plugin work with new concurrency model

---
 lib/logstash/outputs/tcp.rb | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/logstash/outputs/tcp.rb b/lib/logstash/outputs/tcp.rb
index bbdf387..0f793d2 100644
--- a/lib/logstash/outputs/tcp.rb
+++ b/lib/logstash/outputs/tcp.rb
@@ -13,6 +13,7 @@
 class LogStash::Outputs::Tcp < LogStash::Outputs::Base
 
   config_name "tcp"
+  concurrency :single
 
   default :codec, "json"
 
@@ -115,8 +116,6 @@ def register
     end # @ssl_enable
 
     if server?
-      workers_not_supported
-
       @logger.info("Starting tcp output listener", :address => "#{@host}:#{@port}")
       begin
         @server_socket = TCPServer.new(@host, @port)

From 53067fa1aaad69775df8c0215604dffa85ea4b5b Mon Sep 17 00:00:00 2001
From: Joao Duarte <jsvduarte@gmail.com>
Date: Mon, 12 Sep 2016 21:55:54 +0100
Subject: [PATCH 2/2] bump to 4.0.0

---
 CHANGELOG.md                | 5 +++--
 logstash-output-tcp.gemspec | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 562f209..871280b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
-## 3.2.0
- - Added SSL support to this plugin (@michaelweiser)
+## 4.0.0
+ - Remove deprecated `workers_not_supported` call
+ - Use concurrency :single
 
 ## 3.1.1
   - Relax constraint on logstash-core-plugin-api to >= 1.60 <= 2.99
diff --git a/logstash-output-tcp.gemspec b/logstash-output-tcp.gemspec
index 0b93be2..ea6eb6f 100644
--- a/logstash-output-tcp.gemspec
+++ b/logstash-output-tcp.gemspec
@@ -1,7 +1,7 @@
 Gem::Specification.new do |s|
 
   s.name            = 'logstash-output-tcp'
-  s.version         = '3.2.0'
+  s.version         = '4.0.0'
   s.licenses        = ['Apache License (2.0)']
   s.summary         = "Write events over a TCP socket."
   s.description     = "This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program"