The droiddoc rules are ripe for converting to android.RuleBuilder,
they conditionally use many input files which is hard to track
with the standard blueprint.Rule style, as the argument and the
dependency have to be handled independently. Start converting
to android.RuleBuilder by converting the droidstubs module.
Test: m docs
Test: m checkapi
Test: m updateapi
Change-Id: I08713e91149471e88a40115f69824cf5eaf88fb6
If the callback passed to Once panics it was leaving the waiter
in place that would never be completed. Move writing the value
and signalling the waiter to defer.
Test: TestOncePerPanic
Change-Id: Icc4d3b779a79914fcd881d61d38dffcc2f591c39
OncePer.Get must call maybeWaitFor on the value it reads, otherwise
it could return a waiter instead of the real value.
Test: onceper_test.go
Change-Id: I7d407bd1c577dbb43bc14fa107d5f606bf2b1c67
The value constructor passed to OncePer.Once may call back into
Once. Replace the global mutex with a temporary channel stored
in the map using the key, and have callers for the same key
wait on the channel if they find it instead of a real value.
Test: TestOncePerReentrant
Change-Id: Ifa88a3c48981b5076b83f47fbdee5d26311725c6
Require that the key for Once calls be created with NewOnceKey
or NewCustomOnceKey.
Test: m checkbuild
Change-Id: I44b8ea6034338b45f558f862b21d5732364cbf0f
Add an opaque OnceKey type and use it for all calls to Once in
build/soong. A future patch will convert the arguments to
Once* to OnceKey once users outside build/soong have been updated.
Test: onceper_test.go
Change-Id: Ifcb338e6e603e804e507203c9508d30ffb2df966
Allow functions to get the result associated with a OncePer key without
also specifiying a function. Panics if the key has not already been
set. Also replace the open-coded concurrent map implementation with
the new sync.Map.
Test: m checkbuild
Change-Id: I814fdb1ffffaee8398dc877af146e29638c8a6a8
Add DeviceConfig to store per-device configuration information. Put a
OncePer object inside Config and DeviceConfig, which computes a value
once per key per object to allow build logic to store arbitrary
per-build or per-device computed values.
Change-Id: I1a38b426f29d223ef5e803e0d4d9604500de2fd2
