Fix Slog.wtf to not acquire the activity manager lock in its code
path, so that it can never deadlock. This was the original intention
of it, but part was missed.
Now we can put back in the code to detect when strict mode data is
getting large (a little more targeted now to the actual problem),
and use Slog.wtf to report it. And as a bonus, when this happens
we will now clear all of the collected violations, to avoid getting
in to the bad case where IPCs start failing. So this should be
good enough for L to fix the problem, with wtf reports for us to
see if the underlying issue is still happening.
Finally, switch a butch of stuff in the system process from Log.wtf
to Slog.wtf, since many of those are deadlocks waiting to happen.
Oh and fix a crash in the settings provider I noticed in APR.
Change-Id: I307d51b7a4db238fd1e5fe2f3f9bf1b9c6f1c041
Added a new SLEEP_TIMEOUT setting which governs how long the device will
remain awake or dreaming without user activity. By default this
value is set to -1 which maintains today's existing behavior.
We basically represent the time we are allowed to be dreaming as a new
kind of user activity summary state called DREAM, similar to BRIGHT
and DIM. When the sleep timeout expires, the state is cleared and
the dream ends.
Bug: 17665809
Change-Id: I59aa7648dcec215f1285464fc1134934a09230e5
Bug 17762118
When ChangeTransform is used on a View, its intermediate values
are being set, but not cleared after the transition completes
unless it uses a GhostView. This CL clears the intermediate
values when the animation ends if no GhostView is used.
Change-Id: I2590d9c2bc36d31023b3e1af94d2bd72c9589eb5
Bug: 17578553
Games seem to be doing this to prevent destruction of their
GL contexts, and they assume it works even if it doesn't. However,
GLSurfaceView is clunky here, so while the app is doing something
questionable we don't really offer a better way. For now revert
back to kitkat behavior.
Change-Id: Icfa9e496279b9cfa47f9bc7f6848d9313caed0d5
Previously if an activity requested to keep running behind
translucent activities (Activity.requestVisibleBehind()) and then
converted itself to opaque (Activity.convertFromTranslucent()), we
would clear the visible-behind activity. This change tests to see
if the top activity is the visible-behind activity and does not
clear it in that case.
This change also clears the visible-behind activity whenever it
comes back to the front. That forces the activity to call
requestVisibleBehind() each time it is resumed.
Fixes bug 17648436.
Change-Id: Id0fc4d7e2a2b907675305d98bad1b08cb610919e
The motivation is an API change: FloatMath is going to be
deprecated and/or removed. Performance is not the goal of
this change.
That said...
Math is faster than FloatMath with AOT compilation.
While making the change, occurances of:
{Float}Math.sqrt(x * x + y * y) and
{Float}Math.sqrt({Float}Math.pow(x, 2) + {Float}Math.pow(y, 2))
have been replaced with:
{(float)} Math.hypot(x, y)
Right now there is no runtime intrinsic for hypot so is not faster
in all cases for AOT compilation:
Math.sqrt(x * x + y * y) is faster than Math.hypot(x, y) with
AOT, but all other combinations of FloatMath, use of pow() etc.
are slower than hypot().
hypot() has the advantage of being self documenting and
could be optimized in future. None of the behavior differences
around NaN and rounding appear to be important for the cases
looked at: they all assume results and arguments are in range
and usually the results are cast to float.
Different implementations measured on hammerhead / L:
AOT compiled:
[FloatMath.hypot(x, y)]
benchmark=Hypot_FloatMathHypot} 633.85 ns; σ=0.32 ns @ 3 trials
[FloatMath.sqrt(x*x + y*y)]
benchmark=Hypot_FloatMathSqrtMult} 684.17 ns; σ=4.83 ns @ 3 trials
[FloatMath.sqrt(FloatMath.pow(x, 2) + FloatMath.pow(y, 2))]
benchmark=Hypot_FloatMathSqrtPow} 1270.65 ns; σ=12.20 ns @ 6 trials
[(float) Math.hypot(x, y)]
benchmark=Hypot_MathHypot} 96.80 ns; σ=0.05 ns @ 3 trials
[(float) Math.sqrt(x*x + y*y)]
benchmark=Hypot_MathSqrtMult} 23.97 ns; σ=0.01 ns @ 3 trials
[(float) Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2))]
benchmark=Hypot_MathSqrtPow} 156.19 ns; σ=0.12 ns @ 3 trials
Interpreter:
benchmark=Hypot_FloatMathHypot} 1180.54 ns; σ=5.13 ns @ 3 trials
benchmark=Hypot_FloatMathSqrtMult} 1121.05 ns; σ=3.80 ns @ 3 trials
benchmark=Hypot_FloatMathSqrtPow} 3327.14 ns; σ=7.33 ns @ 3 trials
benchmark=Hypot_MathHypot} 856.57 ns; σ=1.41 ns @ 3 trials
benchmark=Hypot_MathSqrtMult} 1028.92 ns; σ=9.11 ns @ 3 trials
benchmark=Hypot_MathSqrtPow} 2539.47 ns; σ=24.44 ns @ 3 trials
Bug: https://code.google.com/p/android/issues/detail?id=36199
Change-Id: I06c91f682095e627cb547d60d936ef87941be692
- Make sure cancel is called when consumer of SpeechRecognizer calls
destroy.
- If consumer goes away, make sure to call cancel as well.
b/17584947 Pressing mic button in Music hoses audio
Change-Id: Ibe1198b37fe6167493a8694f9089d970f1eb07de
When the status guard is not available, (e.g. when the window is not
drawing system bars) do not consume the insets when an action mode is
active.
Bug 17691453
Change-Id: I459622eaf161a96152fb9ac5f60bb9508aa4de89
When device is encrypted the user has to authenticate in order to decrypt
the data partition which is required for running accessibility services
and Text-To-Speech. In order to address this issue we are falling back
to use the default password if there is an enabled accessibility service
and the user has secure lock. This will enable the user to authenticate
when accessibility layer is completely functional.
bug:17671790
Change-Id: Iafffe7bcd234008cf91ffb5011b21b803dca227a
