Add API to BpBinder to get handle for debugging

This is the local handle for the process requesting it.

Test: build
Change-Id: I87df46d166bf5041972624af42369a76adb52ee9

2 files changed, 10 insertions, 0 deletions

diff --git a/libs/binder/BpBinder.cpp b/libs/binder/BpBinder.cpp
index 765e21cb38..55566e2db9 100644
--- a/libs/binder/BpBinder.cpp
+++ b/libs/binder/BpBinder.cpp
@@ -188,6 +188,14 @@ int32_t BpBinder::binderHandle() const {
     return std::get<BinderHandle>(mHandle).handle;
 }
 
+std::optional<int32_t> BpBinder::getDebugBinderHandle() const {
+    if (!isRpcBinder()) {
+        return binderHandle();
+    } else {
+        return std::nullopt;
+    }
+}
+
 bool BpBinder::isDescriptorCached() const {
     Mutex::Autolock _l(mLock);
     return mDescriptorCache.size() ? true : false;
diff --git a/libs/binder/include/binder/BpBinder.h b/libs/binder/include/binder/BpBinder.h
index c69bb9e744..a6d35c7481 100644
--- a/libs/binder/include/binder/BpBinder.h
+++ b/libs/binder/include/binder/BpBinder.h
@@ -90,6 +90,8 @@ public:
     static void         setLimitCallback(binder_proxy_limit_callback cb);
     static void         setBinderProxyCountWatermarks(int high, int low);
 
+    std::optional<int32_t> getDebugBinderHandle() const;
+
     class ObjectManager {
     public:
         ObjectManager();