Merge "Codec2: Detect and release component if the client process terminates" am: 0b505d421c am: b38348482b am: cd95d710f8

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2021481

Change-Id: I14aa5b1fcc57bc48cce801e1a810f39f769e2ae0
diff --git a/media/codec2/hidl/1.2/utils/Component.cpp b/media/codec2/hidl/1.2/utils/Component.cpp
index 8924e6d..7994d32 100644
--- a/media/codec2/hidl/1.2/utils/Component.cpp
+++ b/media/codec2/hidl/1.2/utils/Component.cpp
@@ -520,6 +520,37 @@
     if (res != C2_OK) {
         mInit = res;
     }
+
+    struct ListenerDeathRecipient : public HwDeathRecipient {
+        ListenerDeathRecipient(const wp<Component>& comp)
+            : component{comp} {
+        }
+
+        virtual void serviceDied(
+                uint64_t /* cookie */,
+                const wp<::android::hidl::base::V1_0::IBase>& /* who */
+                ) override {
+            auto strongComponent = component.promote();
+            if (strongComponent) {
+                LOG(INFO) << "Client died ! release the component !!";
+                strongComponent->release();
+            } else {
+                LOG(ERROR) << "Client died ! no component to release !!";
+            }
+        }
+
+        wp<Component> component;
+    };
+
+    mDeathRecipient = new ListenerDeathRecipient(self);
+    Return<bool> transStatus = mListener->linkToDeath(
+            mDeathRecipient, 0);
+    if (!transStatus.isOk()) {
+        LOG(ERROR) << "Listener linkToDeath() transaction failed.";
+    }
+    if (!static_cast<bool>(transStatus)) {
+        LOG(DEBUG) << "Listener linkToDeath() call failed.";
+    }
 }
 
 Component::~Component() {
diff --git a/media/codec2/hidl/1.2/utils/include/codec2/hidl/1.2/Component.h b/media/codec2/hidl/1.2/utils/include/codec2/hidl/1.2/Component.h
index 7937664..d0972ee 100644
--- a/media/codec2/hidl/1.2/utils/include/codec2/hidl/1.2/Component.h
+++ b/media/codec2/hidl/1.2/utils/include/codec2/hidl/1.2/Component.h
@@ -142,6 +142,10 @@
     friend struct ComponentStore;
 
     struct Listener;
+
+    using HwDeathRecipient = ::android::hardware::hidl_death_recipient;
+    sp<HwDeathRecipient> mDeathRecipient;
+
 };
 
 } // namespace utils