Evolution-x/hardware_interfaces
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audio: Update ChildInterface to set scheduler policy lazily

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Since the client may end up never retrieving the interface
instance for sending it over Binder, postpone setting
of the scheduler policy to until that very moment.

Rename 'ChildInterface::getPtr' to 'getInstance' for clarity.

Bug: 264712385
Test: atest VtsHalAudioCoreTargetTest
Change-Id: I31f9dd832c7f85f9632d1d389a8b1063d237d4c1
(cherry picked from commit 780fefb331)
Merged-In: I31f9dd832c7f85f9632d1d389a8b1063d237d4c1
This commit is contained in:
Mikhail Naganov
2023-07-21 17:01:38 -07:00
parent bff67d3e12
commit 2e3b3e4c17
5 changed files with 15 additions and 9 deletions
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2
audio/aidl/default/Module.cpp
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@@ -1129,7 +1129,7 @@ ndk::ScopedAStatus Module::getSoundDose(std::shared_ptr<ISoundDose>* _aidl_retur
if (!mSoundDose) {
mSoundDose = ndk::SharedRefBase::make<sounddose::SoundDose>();
}
*_aidl_return = mSoundDose.getPtr();
*_aidl_return = mSoundDose.getInstance();
LOG(DEBUG) << __func__ << ": returning instance of ISoundDose: " << _aidl_return->get();
return ndk::ScopedAStatus::ok();
}

2
audio/aidl/default/ModulePrimary.cpp
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@@ -37,7 +37,7 @@ ndk::ScopedAStatus ModulePrimary::getTelephony(std::shared_ptr<ITelephony>* _aid
if (!mTelephony) {
mTelephony = ndk::SharedRefBase::make<Telephony>();
}
*_aidl_return = mTelephony.getPtr();
*_aidl_return = mTelephony.getInstance();
LOG(DEBUG) << __func__
<< ": returning instance of ITelephony: " << _aidl_return->get()->asBinder().get();
return ndk::ScopedAStatus::ok();

2
audio/aidl/default/Stream.cpp
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@@ -612,7 +612,7 @@ ndk::ScopedAStatus StreamCommonImpl::getStreamCommonCommon(
if (!mCommon) {
LOG(FATAL) << __func__ << ": the common interface was not created";
}
*_aidl_return = mCommon.getPtr();
*_aidl_return = mCommon.getInstance();
LOG(DEBUG) << __func__ << ": returning " << _aidl_return->get()->asBinder().get();
return ndk::ScopedAStatus::ok();
}

12
audio/aidl/default/include/core-impl/ChildInterface.h
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@@ -35,14 +35,20 @@ struct ChildInterface : private std::pair<std::shared_ptr<C>, ndk::SpAIBinder> {
}
ChildInterface& operator=(std::shared_ptr<C>&& c) {
this->first = std::move(c);
this->second = this->first->asBinder();
AIBinder_setMinSchedulerPolicy(this->second.get(), SCHED_NORMAL, ANDROID_PRIORITY_AUDIO);
return *this;
}
explicit operator bool() const { return !!this->first; }
C& operator*() const { return *(this->first); }
C* operator->() const { return this->first; }
std::shared_ptr<C> getPtr() const { return this->first; }
// Use 'getInstance' when returning the interface instance.
std::shared_ptr<C> getInstance() {
if (this->second.get() == nullptr) {
this->second = this->first->asBinder();
AIBinder_setMinSchedulerPolicy(this->second.get(), SCHED_NORMAL,
ANDROID_PRIORITY_AUDIO);
}
return this->first;
}
};
} // namespace aidl::android::hardware::audio::core

6
audio/aidl/default/stub/ModuleStub.cpp
View File

@@ -37,7 +37,7 @@ ndk::ScopedAStatus ModuleStub::getBluetooth(std::shared_ptr<IBluetooth>* _aidl_r
if (!mBluetooth) {
mBluetooth = ndk::SharedRefBase::make<Bluetooth>();
}
*_aidl_return = mBluetooth.getPtr();
*_aidl_return = mBluetooth.getInstance();
LOG(DEBUG) << __func__
<< ": returning instance of IBluetooth: " << _aidl_return->get()->asBinder().get();
return ndk::ScopedAStatus::ok();
@@ -47,7 +47,7 @@ ndk::ScopedAStatus ModuleStub::getBluetoothA2dp(std::shared_ptr<IBluetoothA2dp>*
if (!mBluetoothA2dp) {
mBluetoothA2dp = ndk::SharedRefBase::make<BluetoothA2dp>();
}
*_aidl_return = mBluetoothA2dp.getPtr();
*_aidl_return = mBluetoothA2dp.getInstance();
LOG(DEBUG) << __func__ << ": returning instance of IBluetoothA2dp: "
<< _aidl_return->get()->asBinder().get();
return ndk::ScopedAStatus::ok();
@@ -57,7 +57,7 @@ ndk::ScopedAStatus ModuleStub::getBluetoothLe(std::shared_ptr<IBluetoothLe>* _ai
if (!mBluetoothLe) {
mBluetoothLe = ndk::SharedRefBase::make<BluetoothLe>();
}
*_aidl_return = mBluetoothLe.getPtr();
*_aidl_return = mBluetoothLe.getInstance();
LOG(DEBUG) << __func__
<< ": returning instance of IBluetoothLe: " << _aidl_return->get()->asBinder().get();
return ndk::ScopedAStatus::ok();