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authorLoïc Hoguin <[email protected]>2018-09-21 14:04:20 +0200
committerLoïc Hoguin <[email protected]>2018-09-21 15:01:57 +0200
commitf810d8dd6496da713e7c70a5e146120de3695774 (patch)
tree0572028ff1ea5fdc6d3d4b081d75ebdbb6bf557d /test/handlers
parent6e784f1a454c6bdeab839d99d59dac992d430c97 (diff)
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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.
Diffstat (limited to 'test/handlers')
-rw-r--r--test/handlers/ws_active_commands_h.erl30
1 files changed, 30 insertions, 0 deletions
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}.