From 4ed4544ce0826287547fcbfaac8a030282644420 Mon Sep 17 00:00:00 2001
From: kolegovilya <kolegov.ilya@huawei.com>
Date: Wed, 18 Dec 2024 17:38:21 +0300
Subject: [PATCH] stubs

---
 interop/src/cpp/common-interop.cc    | 19 +++++++++++++++++++
 interop/src/cpp/ets/convertors-ets.h | 15 +++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/interop/src/cpp/common-interop.cc b/interop/src/cpp/common-interop.cc
index 8b99dd78d..5b5e2ca58 100644
--- a/interop/src/cpp/common-interop.cc
+++ b/interop/src/cpp/common-interop.cc
@@ -109,6 +109,25 @@ void getKoalaEtsNapiCallbackDispatcher(ets_class* clazz, ets_method* method) {
 }
 #endif
 
+#ifdef KOALA_USE_PANDA_VM
+// TODO:
+// Function with memory leak
+// Very sorry :(
+// Stub until 
+// + NewDirectByteBuffer
+// + GetDirectBufferAddress
+// + GetDirectBufferCapacity
+// are available
+//
+// Do NOT use it!
+KNativePointer impl_GetNativeBufferPointer(KVMContext vmContext, KInteropBuffer buffer) {
+    KByte* result = new KByte[buffer.length];
+    memcpy(result, (KByte*)buffer.data, buffer.length);
+    return result;
+}
+KOALA_INTEROP_CTX_1(GetNativeBufferPointer, KNativePointer, KInteropBuffer)
+#endif
+
 #ifdef KOALA_JNI
 #include "jni.h"
 static struct {
diff --git a/interop/src/cpp/ets/convertors-ets.h b/interop/src/cpp/ets/convertors-ets.h
index c7ac99931..ab5a6fc95 100644
--- a/interop/src/cpp/ets/convertors-ets.h
+++ b/interop/src/cpp/ets/convertors-ets.h
@@ -102,6 +102,21 @@ struct InteropTypeConverter<KByte*> {
     }
 };
 
+template<>
+struct InteropTypeConverter<KInteropBuffer> {
+    using InteropType = ets_byteArray;
+    static KInteropBuffer convertFrom(EtsEnv* env, InteropType value) {
+      return  KInteropBuffer {
+        (int32_t)env->GetArrayLength(value),
+        (void*)env->PinByteArray(value)
+      };
+    }
+    static InteropType convertTo(EtsEnv* env, KInteropBuffer value) = delete;
+    static void release(EtsEnv* env, InteropType value, KInteropBuffer converted) {
+      if (value) env->UnpinByteArray((ets_byteArray)value);
+    }
+};
+
 template <> struct InteropTypeConverter<KInteropNumber> {
   using InteropType = ets_double;
   static KInteropNumber convertFrom(EtsEnv *env, InteropType value) {
-- 
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