Diff: mbed-client/source/m2mblockmessage.cpp

Revision:

0:a7a43371b306

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-client/source/m2mblockmessage.cpp	Sun May 14 18:40:18 2017 +0000
@@ -0,0 +1,145 @@
+/*
+ * Copyright (c) 2015 ARM Limited. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ * 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.
+ */
+#include "mbed-client/m2mblockmessage.h"
+#include "mbed-client/m2mconfig.h"
+#include <stdlib.h>
+#include <string.h>
+
+M2MBlockMessage::M2MBlockMessage() :
+    _block_data_ptr(NULL),
+    _total_message_size(0),
+    _block_data_len(0),
+    _block_number(0),
+    _error_code(M2MBlockMessage::ErrorNone),
+    _is_last_block(false),
+    _is_block_message(false)
+{
+}
+
+M2MBlockMessage::~M2MBlockMessage()
+{
+    free(_block_data_ptr);
+    _block_data_ptr = NULL;
+}
+
+void M2MBlockMessage::set_message_info(sn_coap_hdr_s *coap_header)
+{
+    _is_block_message = (coap_header &&
+                coap_header->options_list_ptr &&
+                coap_header->options_list_ptr->block1 != -1) ? true : false;
+
+    if (coap_header && coap_header->options_list_ptr) {
+        // Check total size
+        if (coap_header->options_list_ptr->use_size1) {
+            _total_message_size = coap_header->options_list_ptr->size1;
+        }
+
+        // Default value in coap library is 65kb
+        uint32_t max_size = SN_COAP_MAX_INCOMING_MESSAGE_SIZE;
+        if (_total_message_size > max_size) {
+            _error_code = M2MBlockMessage::EntityTooLarge;
+        } else {
+            _error_code = M2MBlockMessage::ErrorNone;
+        }
+        if (M2MBlockMessage::ErrorNone == _error_code) {
+            // Is last block
+            if (coap_header->options_list_ptr->block1 != -1) {
+//                if (!(*(coap_header->options_list_ptr->block1_ptr + (coap_header->options_list_ptr->block1_len - 1)) & 0x08)) {
+                if (!((coap_header->options_list_ptr->block1) & 0x08)) {
+                    _is_last_block = true;
+                } else {
+                    _is_last_block = false;
+                }
+            }
+
+            _block_number = coap_header->options_list_ptr->block1 >> 4;
+            // Block number
+//            if (coap_header->options_list_ptr->block1_len == 3) {
+//                _block_number = *(coap_header->options_list_ptr->block1_ptr) << 12;
+//                _block_number |= *(coap_header->options_list_ptr->block1_ptr + 1) << 4;
+//                _block_number |= (*(coap_header->options_list_ptr->block1_ptr + 2)) >> 4;
+//            }
+
+//            else if (coap_header->options_list_ptr->block1_len == 2) {
+//                _block_number = *(coap_header->options_list_ptr->block1_ptr) << 4;
+//                _block_number |= (*(coap_header->options_list_ptr->block1_ptr + 1)) >> 4;
+//            }
+//            else if (coap_header->options_list_ptr->block1_len == 1) {
+//                _block_number = (*coap_header->options_list_ptr->block1_ptr) >> 4;
+//            }
+//            else {
+//                _block_number = 0;
+//            }
+
+            // Payload
+            free(_block_data_ptr);
+            _block_data_ptr = NULL;
+            _block_data_len = coap_header->payload_len;
+            if(_block_data_len > 0) {
+                _block_data_ptr = (uint8_t *)malloc(_block_data_len);
+                if (_block_data_ptr) {
+                    memcpy(_block_data_ptr, coap_header->payload_ptr, _block_data_len);
+                }
+            }
+        }
+    }
+}
+
+void M2MBlockMessage::clear_values()
+{
+    free(_block_data_ptr);
+    _block_data_ptr = NULL;
+    _block_data_len = 0;
+    _block_number = 0;
+    _total_message_size = 0;
+    _is_last_block = false;
+    _error_code = M2MBlockMessage::ErrorNone;
+}
+
+bool M2MBlockMessage::is_block_message() const
+{
+    return _is_block_message;
+}
+
+uint16_t M2MBlockMessage::block_number() const
+{
+    return _block_number;
+}
+
+uint32_t M2MBlockMessage::total_message_size() const
+{
+    return _total_message_size;
+}
+
+bool M2MBlockMessage::is_last_block() const
+{
+    return _is_last_block;
+}
+
+uint8_t* M2MBlockMessage::block_data() const
+{
+    return _block_data_ptr;
+}
+
+uint32_t M2MBlockMessage::block_data_len() const
+{
+    return _block_data_len;
+}
+
+M2MBlockMessage::Error M2MBlockMessage::error_code() const
+{
+    return _error_code;
+}