DPM's method will return false if encrypted by default password,
preventing the changing of encryption password to lockscreen password.
Check if the device is encrypted by some means, instead.
Also fix a SecurityException when Device Admin queries encryption state
(recent regression)
Bug: 17881324
Change-Id: Id897e61c5e254ab3f8dc569285428a73005303ea
The system should always be using new startActivityAsCaller() when
starting activities on behalf of someone else, to ensure that
security checks are enforced as the original caller.
Bug: 17983737
Change-Id: Ic40816a797cfdb13c0adb48b86ed4ed7d6aae8eb
Inside ResolverActivity: when getting the ResolveInfo for EXTRA_INITIAL_INTENTS:
The ResolveInfo is created directly inside ResolverActivity, not by PackageManagerService.
So, noResourceId had not been set to true for this ResolveInfo.
So setting it inside ResolverActivity.
This is needed since inside a managed profile, the icons are not associated with resource ids.
BUG:17577733
Change-Id: Ic4f0439128f95482167103b783344e2baa0aed52
- Add docs to Binder, Messenger, ResultReceier to explain their
relation (or lack there-of) to process lifecycle.
- Clarify some aspects of process lifecycle for services.
- Fix help text of am command.
- Fix per-package dumping of battery stats to not include history.
- Fix per-package dumping of proc stats to only include aggregated
and current stats and fix some formatting.
- Fix per-process dumping of meminfo to have an option to interpret
the input as a package, so including all processes that are
running code of that package.
- Fix top-level per-package debug output to correctly include all
of these improvements and give them a little more time (10s) to
complete for timing out.
Change-Id: I2a04c0f862bd47b08329443d722345a13ad9b6e2
When performing a restore during initial device setup, we could be
installing hundreds of packages. Currently, we're writing all
metadata (including heavy icons) for every session mutation! Because
we're holding the mSessions lock while writing all this heavy data,
we end up causing ANRs when apps call other PackageInstaller APIs.
This patch mitigates by moving the heavy icon data into separate
per-session PNG files, which we only persist when changed.
Bug: 17881962, 17567794
Change-Id: I4dee15d4a65a8eb65c381e6bb7477728b6cc30d2
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
