commit 38dbadecb494ff06584294a7d756e6807051251b
author Brett Chabot <brettchabot@google.com> Fri Jan 24 12:59:43 2020 -0800
committer Brett Chabot <brettchabot@google.com> Tue Jan 28 13:28:49 2020 -0800
tree 15a1118fcd642f8204051a68c88b10e35eda4548
parent 9f68373202e1205b0e98795f675ac910e08369ae

libbinder: Add setDefaultServiceManager for use in host testing.

Bug: 147595993
Test: m libbinder; m aosp-x86; boot
Change-Id: If8344981f8d5f23ab28c4fad6fcb4c76fc80e1ab

libs/binder/IServiceManager.cpp

diff --git a/libs/binder/IServiceManager.cpp b/libs/binder/IServiceManager.cpp
index 5ca9156..328653a 100644
--- a/libs/binder/IServiceManager.cpp
+++ b/libs/binder/IServiceManager.cpp
@@ -85,10 +85,11 @@
     sp<AidlServiceManager> mTheRealServiceManager;
 };
 
+static Mutex gDefaultServiceManagerLock;
+static sp<IServiceManager> gDefaultServiceManager;
+
 sp<IServiceManager> defaultServiceManager()
 {
-    static Mutex gDefaultServiceManagerLock;
-    static sp<IServiceManager> gDefaultServiceManager;
 
     if (gDefaultServiceManager != nullptr) return gDefaultServiceManager;
 
@@ -106,6 +107,11 @@
     return gDefaultServiceManager;
 }
 
+void setDefaultServiceManager(const sp<IServiceManager>& sm) {
+  AutoMutex _l(gDefaultServiceManagerLock);
+  gDefaultServiceManager = sm;
+}
+
 #if !defined(__ANDROID_VNDK__) && defined(__ANDROID__)
 // IPermissionController is not accessible to vendors
 

libs/binder/include/binder/IServiceManager.h

diff --git a/libs/binder/include/binder/IServiceManager.h b/libs/binder/include/binder/IServiceManager.h
index 2c43263..31f022d 100644
--- a/libs/binder/include/binder/IServiceManager.h
+++ b/libs/binder/include/binder/IServiceManager.h
@@ -100,6 +100,11 @@
 
 sp<IServiceManager> defaultServiceManager();
 
+/**
+ * Directly set the default service manager. Only used for testing.
+ */
+void setDefaultServiceManager(const sp<IServiceManager>& sm);
+
 template<typename INTERFACE>
 sp<INTERFACE> waitForService(const String16& name) {
     const sp<IServiceManager> sm = defaultServiceManager();