Add SchemaCStruct proxy class

Author: sgilmore10

matlab/src/cpp/arrow/matlab/c/proxy/schema_c_struct.cc

@@ -0,0 +1,49 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#include "arrow/matlab/c/proxy/schema_c_struct.h"
+#include "libmexclass/proxy/Proxy.h"
+
+namespace arrow::matlab::c::proxy {
+  SchemaCStruct::SchemaCStruct() : schema_c_struct{new ArrowSchema{}} {
+      REGISTER_METHOD(SchemaCStruct, getAddress);
+  }
+
+  libmexclass::proxy::MakeResult SchemaCStruct::make(const libmexclass::proxy::FunctionArguments& constructor_arguments) {
+    return std::make_shared<SchemaCStruct>();
+  }
+
+  SchemaCStruct::~SchemaCStruct() {
+    if (schema_c_struct != nullptr) { 
+      if (schema_c_struct->release != nullptr) {
+        schema_c_struct->release(schema_c_struct);
+        schema_c_struct->release = nullptr;
+      }
+      free(schema_c_struct);
+    }
+  }
+
+  void SchemaCStruct::getAddress(libmexclass::proxy::method::Context& context) {
+    namespace mda = ::matlab::data;
+    
+    mda::ArrayFactory factory;
+    auto address = reinterpret_cast<uint64_t>(schema_c_struct);
+    context.outputs[0] = factory.createScalar(address);
+  }
+
+
+}  // namespace arrow::matlab::c::proxy

matlab/src/cpp/arrow/matlab/c/proxy/schema_c_struct.h

@@ -0,0 +1,41 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#pragma once
+
+#include "arrow/c/abi.h"
+#include "libmexclass/proxy/Proxy.h"
+
+namespace arrow::matlab::c::proxy {
+
+class SchemaCStruct : public libmexclass::proxy::Proxy {
+ public:
+  SchemaCStruct();
+
+  ~SchemaCStruct();
+
+  static libmexclass::proxy::MakeResult make(
+    const libmexclass::proxy::FunctionArguments& constructor_arguments);
+
+ protected:
+  void getAddress(libmexclass::proxy::method::Context& context);
+
+  struct ArrowSchema* schema_c_struct;
+
+};
+
+}  // namespace arrow::matlab::c::proxy