From 11723cffe011e99c1092388958fb1a047ab1c09c Mon Sep 17 00:00:00 2001
From: sfan5 <sfan5@live.de>
Date: Fri, 15 May 2020 16:38:19 +0200
Subject: builtin: Move common/async_event.lua to mainmenu/async_event.lua

It only works in the context of the mainmenu.
---
 builtin/mainmenu/async_event.lua | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 builtin/mainmenu/async_event.lua

(limited to 'builtin/mainmenu/async_event.lua')

diff --git a/builtin/mainmenu/async_event.lua b/builtin/mainmenu/async_event.lua
new file mode 100644
index 000000000..04bfb78d6
--- /dev/null
+++ b/builtin/mainmenu/async_event.lua
@@ -0,0 +1,32 @@
+
+core.async_jobs = {}
+
+local function handle_job(jobid, serialized_retval)
+	local retval = core.deserialize(serialized_retval)
+	assert(type(core.async_jobs[jobid]) == "function")
+	core.async_jobs[jobid](retval)
+	core.async_jobs[jobid] = nil
+end
+
+core.async_event_handler = handle_job
+
+function core.handle_async(func, parameter, callback)
+	-- Serialize function
+	local serialized_func = string.dump(func)
+
+	assert(serialized_func ~= nil)
+
+	-- Serialize parameters
+	local serialized_param = core.serialize(parameter)
+
+	if serialized_param == nil then
+		return false
+	end
+
+	local jobid = core.do_async_callback(serialized_func, serialized_param)
+
+	core.async_jobs[jobid] = callback
+
+	return true
+end
+
-- 
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