This patch changes the way that the ConnectivityThread is lazily
instantiated by using the "lazy initialization holder class idiom".
The first code point that tries to obtain a reference to the unique
ConnectivityThread instance will trigger the creation of the Singleton
class, which will guarantee a thread-safe initialization of the static
INSTANCE field inside Singleton according to the language specs.
This is the Item #71 of Effective Java.
The unique static instance of ConnectivityThread is not stored directly
inside ConnectivityThread class but is stored in a static nested class.
This is to avoid triggering the creation of that unique instance when
Zygote does class preloading at phone startup. Otherwise this would lead
to Zygote creating a new OS thread during preloading, which is a fatal
error.
Test: frameworks-wifi tests pass
Bug: 26749700
Bug: 28537383
Bug: 32130437
(cherry picked from commit f8ddba2cbd)
Change-Id: If13b363889a8e9396273a90c3d9f9421a48aecbc
This patch removes the static singleton looper used by
ConnectivityManager and instead uses the common ConnectivityThread.
This allows to removes the static atomic counter used to track
the number of registered NetworkCallback in ConnectivityManager, because
the looper is not turned off anymore when no callbacks are registered.
Also an overloaded version of sendRequestForNetwork is added taking as a
new parameter a Handler. This will allow to overload various callback
and request related API calls with user provided Handlers.
Test: ConnectivityServiceTest passes
Bug: 26749700
Bug: 28537383
Bug: 32130437
(cherry picked from commit 3a54555e85)
Change-Id: If956addbf8e7b11b36a4b966de7fca00e8f362c1
This patch simplifies CallbackHandler in the following way:
- CallbackHandler directly uses the static references to
sNetworkCallback and sCallbackRefCount. This allows to remove
instance fields in CallbackHandler.
- CallbackHandler does not have a reference to ConnectivityManager
anymore
- CallbackHandler.getObject() is now generic in a type-safe way.
Test: ConnectivityServiceTest passes
Bug: 28537383
Bug: 32130437
(cherry picked from commit fe3325f2a5)
Change-Id: I1b5fe2a361b5f623a8310ae698497c83d72f3034
This avoids a NullPointerException when trying to call the callback
and gives a more readable error message.
(cherry picked from commit 49a5795ef0)
Change-Id: Ia419ff68ef10f308f9e44be47420e27099ee6070
* changes:
DO NOT MERGE: IpConnectivityMetrics: rate limit ApfProgramEvents
DO NOT MERGE: TokenBucket for rate-limiting and throttling
DO NOT MERGE: IpConnectivityMetrics reads buffer size in settings
DO NOT MERGE: CaptivePortalLogin: set mixed content policy to compatibility.
DO NOT MERGE: Add IP conn metrics to dumpsys and bug reports
DO NOT MERGE: IpConnectivity metrics: add version number
This patch uses the previously introduced TokenBucket to rate limit
ApfProgramEvents, still allowing for burst of ApfProgramEvents when a
new interface is set up (due to ipv4 provisioning, multicast lock, ipv6 RAs
triggering new APF program events in short amounts of time).
Test: new test in IpConnectivityMetricsTest
Bug: 1550402
(cherry picked from commit 811c4cec75)
Change-Id: Idb640dec13ba64180985544b9709a586af66eb6e
Test: IpConnectivityMetricsTest passes. Also manually changed the new
setting and verified the buffer size is as expected after flushing the
buffer.
Bug: 32198637
(cherry picked from commit d5f78a08b4)
Change-Id: Iefbeac3a688b260fb3f92dfe0bfd9db28e26749d
This patch adds a version field to ipconnectivity.proto and populates it
to 2, which is the logical version number for NYC-MR2.
Test: IpConnectivity{EventBuilder,Metrics}Test pass
Bug: 32127906
(cherry picked from commit 79a739cbf3)
Change-Id: If8f167c0dc4c1abe0e235e2adfd131168a4ddc52
