From f810d8dd6496da713e7c70a5e146120de3695774 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Fri, 21 Sep 2018 14:04:20 +0200
Subject: Add the {active, boolean()} Websocket command

This command is currently not documented. It allows disabling
the reading of incoming data from the socket, and can be used
as a poor man's flow control.
---
 test/handlers/ws_active_commands_h.erl | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 test/handlers/ws_active_commands_h.erl

(limited to 'test/handlers')

diff --git a/test/handlers/ws_active_commands_h.erl b/test/handlers/ws_active_commands_h.erl
new file mode 100644
index 0000000..4cdb3b1
--- /dev/null
+++ b/test/handlers/ws_active_commands_h.erl
@@ -0,0 +1,30 @@
+%% This module takes commands from the x-commands header
+%% and returns them in the websocket_init/1 callback.
+
+-module(ws_active_commands_h).
+-behavior(cowboy_websocket).
+
+-export([init/2]).
+-export([websocket_init/1]).
+-export([websocket_handle/2]).
+-export([websocket_info/2]).
+
+init(Req, RunOrHibernate) ->
+	{cowboy_websocket, Req, RunOrHibernate}.
+
+websocket_init(State=run) ->
+	erlang:send_after(1500, self(), active_true),
+	{[{active, false}], State};
+websocket_init(State=hibernate) ->
+	erlang:send_after(1500, self(), active_true),
+	{[{active, false}], State, hibernate}.
+
+websocket_handle(Frame, State=run) ->
+	{[Frame], State};
+websocket_handle(Frame, State=hibernate) ->
+	{[Frame], State, hibernate}.
+
+websocket_info(active_true, State=run) ->
+	{[{active, true}], State};
+websocket_info(active_true, State=hibernate) ->
+	{[{active, true}], State, hibernate}.
-- 
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