commit a194c456520b13779d00b313e0e969ba9a030525
author Steven Moreland <smoreland@google.com> Mon Mar 04 16:47:07 2019 -0800
committer Steven Moreland <smoreland@google.com> Tue Mar 05 10:30:04 2019 -0800
tree 932b9198a7bc13f4bb560a1534dfec9a04123cb3
parent e953b04799fbb3ba54431daac49b232b3c30038f

libbinder_ndk: support dump

At the NDK layer:
AIBinder_Class_setOnDump (to implement dump)
AIBinder_dump (to call dump)

At the AIDL layer:
ICInterface::dump(...) to implement and call dump

Bug: 125733384
Test: atest android.binder.cts
Change-Id: I0873ad574bb7a8b9d645c7301fdfa0797e62c834

libs/binder/ndk/ibinder_internal.h

diff --git a/libs/binder/ndk/ibinder_internal.h b/libs/binder/ndk/ibinder_internal.h
index 7852298..0dd795a 100644
--- a/libs/binder/ndk/ibinder_internal.h
+++ b/libs/binder/ndk/ibinder_internal.h
@@ -25,6 +25,7 @@
 
 #include <binder/Binder.h>
 #include <binder/IBinder.h>
+#include <utils/Vector.h>
 
 inline bool isUserCommand(transaction_code_t code) {
     return code >= FIRST_CALL_TRANSACTION && code <= LAST_CALL_TRANSACTION;
@@ -66,6 +67,7 @@
     ABBinder* asABBinder() override { return this; }
 
     const ::android::String16& getInterfaceDescriptor() const override;
+    ::android::status_t dump(int fd, const ::android::Vector<::android::String16>& args) override;
     ::android::status_t onTransact(uint32_t code, const ::android::Parcel& data,
                                    ::android::Parcel* reply, binder_flags_t flags) override;
 
@@ -106,10 +108,14 @@
 
     const ::android::String16& getInterfaceDescriptor() const { return mInterfaceDescriptor; }
 
+    // required to be non-null, implemented for every class
     const AIBinder_Class_onCreate onCreate;
     const AIBinder_Class_onDestroy onDestroy;
     const AIBinder_Class_onTransact onTransact;
 
+    // optional methods for a class
+    AIBinder_onDump onDump;
+
    private:
     // This must be a String16 since BBinder virtual getInterfaceDescriptor returns a reference to
     // one.