libbinder: Add support for C++ Parcelable

Bug: 23600712
Test: compiles, integration tests for Java/C++ compatibility pass

Change-Id: I0919571919a3633350169ed5668bbb000da9691c

1 files changed, 20 insertions, 0 deletions

diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index a5f7d89bd8..03348da773 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -931,6 +931,14 @@ status_t Parcel::writeWeakBinder(const wp<IBinder>& val)
     return flatten_binder(ProcessState::self(), val, this);
 }
 
+status_t Parcel::writeParcelable(const Parcelable& parcelable) {
+    status_t status = writeInt32(1);  // parcelable is not null.
+    if (status != OK) {
+        return status;
+    }
+    return parcelable.writeToParcel(this);
+}
+
 status_t Parcel::writeNativeHandle(const native_handle* handle)
 {
     if (!handle || handle->version != sizeof(native_handle))
@@ -1543,6 +1551,18 @@ wp<IBinder> Parcel::readWeakBinder() const
     return val;
 }
 
+status_t Parcel::readParcelable(Parcelable* parcelable) const {
+    int32_t have_parcelable = 0;
+    status_t status = readInt32(&have_parcelable);
+    if (status != OK) {
+        return status;
+    }
+    if (!have_parcelable) {
+        return UNEXPECTED_NULL;
+    }
+    return parcelable->readFromParcel(this);
+}
+
 int32_t Parcel::readExceptionCode() const
 {
     binder::Status status;