Enhanced SIM for E2AP v1 for TS UC

[sim/e2-interface.git] / e2sim / e2apv1sim / src / ASN1 / lib / asn_x2ap_wrapper.hpp

diff --git a/e2sim/e2apv1sim/src/ASN1/lib/asn_x2ap_wrapper.hpp b/e2sim/e2apv1sim/src/ASN1/lib/asn_x2ap_wrapper.hpp
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+/*****************************************************************************
+#                                                                            *
+# Copyright 2019 AT&T Intellectual Property                                  *
+# Copyright 2019 Nokia                                                       *
+#                                                                            *
+# Licensed 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.                                             *
+#                                                                            *
+******************************************************************************/
+#ifndef ASN_X2AP_PDU_WRAPPER_HPP
+#define ASN_X2AP_PDU_WRAPPER_HPP
+
+#include <asn/per/codec.hpp>
+#include <asn/printer.hpp>
+#include <asn/utility.hpp>
+
+#include <X2AP-CommonDataTypes.hpp>
+#include <X2AP-Constants.hpp>
+#include <X2AP-Containers.hpp>
+#include <X2AP-IEs.hpp>
+#include <X2AP-PDU-Contents.hpp>
+#include <X2AP-PDU-Descriptions.hpp>
+
+#define X2AP_PDU_DEFAULT_BUFFER_SIZE 4096
+
+//Credit: copied from E2-Manager
+struct X2APpduWrapper
+{
+    unsigned char* m_allocation_buffer;
+    size_t m_allocation_buffer_size;
+
+    X2APpduWrapper(size_t allocation_buffer_size = X2AP_PDU_DEFAULT_BUFFER_SIZE)
+    {
+        m_allocation_buffer_size = allocation_buffer_size;
+        m_allocation_buffer = 0;
+        if (allocation_buffer_size) {
+            m_allocation_buffer =
+              new (std::nothrow) unsigned char[allocation_buffer_size];
+            m_allocator.reset(
+              m_allocation_buffer,
+              m_allocation_buffer_size); // initialized correctly on
+                                         // allocation failure.
+        }
+    }
+
+    ~X2APpduWrapper()
+    {
+        if (m_allocation_buffer)
+            delete[] m_allocation_buffer;
+    }
+
+    asn::allocator& ref_allocator() { return m_allocator; }
+
+    X2AP_PDU& ref_pdu() { return m_pdu; }
+
+    // reset pdu and allocation buffer. Allows reusing.
+    void clear()
+    {
+        m_pdu.clear();
+        m_allocator.reset(m_allocation_buffer, m_allocation_buffer_size);
+    }
+
+  private:
+    X2AP_PDU m_pdu;
+    asn::allocator m_allocator;
+};
+
+
+#endif