de.yaacc.upnp.server.ResumeRefreshPolicy Class Reference

What to do when a browser screen comes back to the foreground after the device or the app was suspended (screen off, Doze, a long time in the background). More...

Collaboration diagram for de.yaacc.upnp.server.ResumeRefreshPolicy:

Classes
enum	ListenerCheck
	The state of the network listener found on resume. More...

Static Public Member Functions
static ListenerCheck	checkListener (boolean networkUsable, boolean initialized, boolean networkChanged, boolean multicastReceiving, boolean unicastReceiving)
static boolean	shouldSearch (boolean listenerReenabled, long lastSearchAtMillis, long nowMillis)

Static Public Attributes
static final long	SEARCH_MIN_INTERVAL_MILLIS = 30_000L
	A search that ran less than this ago is not repeated on resume.
static final long	NEVER = -1L
	Value of "time of the last search" when there was none.

Detailed Description

What to do when a browser screen comes back to the foreground after the device or the app was suspended (screen off, Doze, a long time in the background).

No Android classes: unit-testable on the JVM.

Two decisions: whether the network listener (multicast receiver, unicast socket) is still usable or has to be re-created, and whether the devices are searched again.

Member Function Documentation

checkListener()

static ListenerCheck de.yaacc.upnp.server.ResumeRefreshPolicy.checkListener ( boolean networkUsable, boolean initialized, boolean networkChanged, boolean multicastReceiving, boolean unicastReceiving )

static

Parameters

networkUsable	a Wi-Fi, hotspot or other non-cellular network is there
initialized	the listener is enabled (handler and both sockets exist)
networkChanged	the active network differs from the one the listener was enabled on
multicastReceiving	the multicast receive loop is running
unicastReceiving	the unicast receive loop is running

Referenced by de.yaacc.upnp.server.NetworkDeviceListener.reenableIfStale().

Here is the caller graph for this function:

shouldSearch()

static boolean de.yaacc.upnp.server.ResumeRefreshPolicy.shouldSearch ( boolean listenerReenabled, long lastSearchAtMillis, long nowMillis )

static

Parameters

listenerReenabled	the listener was re-created just now: its new sockets know no device
lastSearchAtMillis	monotonic time of the last search, NEVER if none
nowMillis	monotonic time now (same clock)

Returns

true if the devices are searched again now

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The documentation for this class was generated from the following file:

• /github/workspace/yaacc/src/main/java/de/yaacc/upnp/server/ResumeRefreshPolicy.java