Merge "Adding rust wrapper lib for libfakeServiceManager" into main am: c753ca67a5 am: 3b907f9b07

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2719667

Change-Id: I764f34ecc6c7fbc231c9efd9b98d8666e6abae93
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/libs/fakeservicemanager/FakeServiceManager.cpp b/libs/fakeservicemanager/FakeServiceManager.cpp
index 80661c1cbd..241c866558 100644
--- a/libs/fakeservicemanager/FakeServiceManager.cpp
+++ b/libs/fakeservicemanager/FakeServiceManager.cpp
@@ -16,6 +16,10 @@
 
 #include "fakeservicemanager/FakeServiceManager.h"
 
+using android::sp;
+using android::FakeServiceManager;
+using android::setDefaultServiceManager;
+
 namespace android {
 
 FakeServiceManager::FakeServiceManager() {}
@@ -123,3 +127,24 @@ void FakeServiceManager::clear() {
     mNameToService.clear();
 }
 }  // namespace android
+
+[[clang::no_destroy]] static sp<FakeServiceManager> gFakeServiceManager;
+[[clang::no_destroy]] static std::once_flag gSmOnce;
+
+extern "C" {
+
+// Setup FakeServiceManager to mock dependencies in test using this API for rust backend
+void setupFakeServiceManager() {
+    /* Create a FakeServiceManager instance and add required services */
+    std::call_once(gSmOnce, [&]() {
+        gFakeServiceManager = new FakeServiceManager();
+        android::setDefaultServiceManager(gFakeServiceManager);
+    });
+}
+
+// Clear existing services from Fake SM for rust backend
+void clearFakeServiceManager() {
+    LOG_ALWAYS_FATAL_IF(gFakeServiceManager == nullptr, "Fake Service Manager is not available. Forgot to call setupFakeServiceManager?");
+    gFakeServiceManager->clear();
+}
+} //extern "C"
\ No newline at end of file