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Commit 7a655bb3 authored by Michael Butler's avatar Michael Butler
Browse files

Add HIDL lifetime and protecting callback info to NN README 

This CL copies information from
packages/modules/NeuralNetworks/runtime/VersionedInterfaces.cpp and
modifies the description to be more appropriate for the NN HAL utility
code.

Specific sections added to the README:
* "HIDL Interface Lifetimes across Processes"
* "Protecting Asynchronous Calls across HIDL"

Bug: 170289677
Test: mma
Change-Id: Id381895535d708b627f4746687b4d12e16560639
parent 7fae6c35

neuralnetworks/1.0/utils/include/nnapi/hal/1.0/Callbacks.h

+3 −0
Original line number Diff line number Diff line
@@ -27,6 +27,9 @@ 
#include <nnapi/hal/ProtectCallback.h>

#include <nnapi/hal/TransferValue.h>



// See hardware/interfaces/neuralnetworks/utils/README.md for more information on HIDL interface

// lifetimes across processes and for protecting asynchronous calls across HIDL.



namespace android::hardware::neuralnetworks::V1_0::utils {



class PreparedModelCallback final : public IPreparedModelCallback,

neuralnetworks/1.0/utils/include/nnapi/hal/1.0/Device.h

+4 −0
Original line number Diff line number Diff line
@@ -32,8 +32,12 @@ 
#include <string>

#include <vector>



// See hardware/interfaces/neuralnetworks/utils/README.md for more information on HIDL interface

// lifetimes across processes and for protecting asynchronous calls across HIDL.



namespace android::hardware::neuralnetworks::V1_0::utils {



// Class that adapts V1_0::IDevice to nn::IDevice.

class Device final : public nn::IDevice {

    struct PrivateConstructorTag {};

neuralnetworks/1.0/utils/include/nnapi/hal/1.0/PreparedModel.h

+4 −0
Original line number Diff line number Diff line
@@ -29,8 +29,12 @@ 
#include <utility>

#include <vector>



// See hardware/interfaces/neuralnetworks/utils/README.md for more information on HIDL interface

// lifetimes across processes and for protecting asynchronous calls across HIDL.



namespace android::hardware::neuralnetworks::V1_0::utils {



// Class that adapts V1_0::IPreparedModel to nn::IPreparedModel.

class PreparedModel final : public nn::IPreparedModel {

    struct PrivateConstructorTag {};

neuralnetworks/1.0/utils/src/Callbacks.cpp

+3 −0
Original line number Diff line number Diff line
@@ -32,6 +32,9 @@ 


#include <utility>



// See hardware/interfaces/neuralnetworks/utils/README.md for more information on HIDL interface

// lifetimes across processes and for protecting asynchronous calls across HIDL.



namespace android::hardware::neuralnetworks::V1_0::utils {

namespace {

neuralnetworks/1.0/utils/src/Device.cpp

+3 −0
Original line number Diff line number Diff line
@@ -38,6 +38,9 @@ 
#include <string>

#include <vector>



// See hardware/interfaces/neuralnetworks/utils/README.md for more information on HIDL interface

// lifetimes across processes and for protecting asynchronous calls across HIDL.



namespace android::hardware::neuralnetworks::V1_0::utils {

namespace {