Merge "libbinder_ndk: add isAlive/ping" (ed6c590e) · Commits · e / devices / smdk4412 / android_frameworks_native

libs/binder/ndk/AIBinder.cpp

+16 −0

Original line number	Diff line number	Diff line
		@@ -202,6 +202,22 @@ bool AIBinder_isRemote(const AIBinder* binder) {
		return binder->isRemote();
		}

		bool AIBinder_isAlive(const AIBinder* binder) {
		if (binder == nullptr) {
		return false;
		}

		return const_cast<AIBinder*>(binder)->getBinder()->isBinderAlive();
		}

		binder_status_t AIBinder_ping(AIBinder* binder) {
		if (binder == nullptr) {
		return EX_NULL_POINTER;
		}

		return binder->getBinder()->pingBinder();
		}

		void AIBinder_incStrong(AIBinder* binder) {
		if (binder == nullptr) {
		LOG(ERROR) << __func__ << ": on null binder";

+16 −0

Original line number	Diff line number	Diff line
		@@ -146,6 +146,22 @@ __attribute__((warn_unused_result)) AIBinder* AIBinder_new(const AIBinder_Class*
		*/
		bool AIBinder_isRemote(const AIBinder* binder);

		/**
		* If this binder is known to be alive. This will not send a transaction to a remote process and
		* returns a result based on the last known information. That is, whenever a transaction is made,
		* this is automatically updated to reflect the current alive status of this binder. This will be
		* updated as the result of a transaction made using AIBinder_transact, but it will also be updated
		* based on the results of bookkeeping or other transactions made internally.
		*/
		bool AIBinder_isAlive(const AIBinder* binder);

		/**
		* Built-in transaction for all binder objects. This sends a transaction which will immediately
		* return. Usually this is used to make sure that a binder is alive, as a placeholder call, or as a
		* sanity check.
		*/
		binder_status_t AIBinder_ping(AIBinder* binder);

		/**
		* This can only be called if a strong reference to this object already exists in process.
		*/

+4 −0

Original line number	Diff line number	Diff line
		@@ -38,6 +38,10 @@ TEST(NdkBinder, DoubleNumber) {
		TEST(NdkBinder, RetrieveNonNdkService) {
		AIBinder* binder = AServiceManager_getService(kExistingNonNdkService);
		ASSERT_NE(nullptr, binder);
		EXPECT_TRUE(AIBinder_isRemote(binder));
		EXPECT_TRUE(AIBinder_isAlive(binder));
		EXPECT_EQ(EX_NONE, AIBinder_ping(binder));

		AIBinder_decStrong(binder);
		}