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Disable the network asynchronously to avoid blocking the UI

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Noticeable latency between toggling the power switch and the device
showing the screensaver has been tracked down to the two network
manager calls. This change allows the screen to be updated first.
Note that unloading the open source brcmfmac driver used on okreader
is slower than unloading the proprietary driver shipped by Kobo,
making this delay even more noticeable.

self.suspend() is scheduled after the network manager calls to avoid
race conditions.
This commit is contained in:
Cosmin Gorgovan
2017-04-01 20:24:15 +01:00
committed by Frans de Jonge
parent 11d6bfbc40
commit 10132d1c59
1 changed files with 8 additions and 6 deletions
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14
frontend/device/generic/device.lua
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@@ -124,11 +124,6 @@ function Device:onPowerEvent(ev)
-- else we we not in screensaver mode
elseif ev == "Power" or ev == "Suspend" then
self.powerd:beforeSuspend()
local network_manager = require("ui/network/manager")
if network_manager.wifi_was_on then
network_manager:releaseIP()
network_manager:turnOffWifi()
end
local UIManager = require("ui/uimanager")
-- flushing settings first in case the screensaver takes too long time
-- that flushing has no chance to run
@@ -140,7 +135,14 @@ function Device:onPowerEvent(ev)
require("ui/screensaver"):show("suspend", _("Sleeping"))
self.screen:refreshFull()
self.screen_saver_mode = true
UIManager:scheduleIn(self.suspend_wait_timeout, self.suspend)
UIManager:scheduleIn(0.1, function()
local network_manager = require("ui/network/manager")
if network_manager.wifi_was_on then
network_manager:releaseIP()
network_manager:turnOffWifi()
end
UIManager:scheduleIn(self.suspend_wait_timeout, self.suspend)
end)
end
end