m2mnotificationhandler.cpp

00001 /*
00002  * Copyright (c) 2018 ARM Limited. All rights reserved.
00003  * SPDX-License-Identifier: Apache-2.0
00004  * Licensed under the Apache License, Version 2.0 (the License); you may
00005  * not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  * http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an AS IS BASIS, WITHOUT
00012  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 #include "m2mnotificationhandler.h"
00017 #include "eventOS_scheduler.h"
00018 #include "m2mnsdlinterface.h"
00019 #include "mbed-trace/mbed_trace.h"
00020 #include <assert.h>
00021 #include <inttypes.h>
00022 #include <stdlib.h>
00023 
00024 #define MBED_CLIENT_NOTIFICATION_HANDLER_TASKLET_INIT_EVENT 0 // Tasklet init occurs always when generating a tasklet
00025 #define MBED_CLIENT_NOTIFICATION_HANDLER_EVENT 40
00026 #define TRACE_GROUP "mClt"
00027 
00028 int8_t M2MNotificationHandler::_tasklet_id = -1;
00029 
00030 extern "C" void notification_tasklet_func(arm_event_s *event)
00031 {
00032     M2MNsdlInterface *iface = (M2MNsdlInterface*)event->data_ptr;
00033     if (event->event_type == MBED_CLIENT_NOTIFICATION_HANDLER_EVENT) {
00034         iface->send_next_notification(false);
00035         event->event_data = 0;
00036     }
00037 }
00038 
00039 M2MNotificationHandler::M2MNotificationHandler()
00040 {
00041     if (M2MNotificationHandler::_tasklet_id < 0) {
00042         M2MNotificationHandler::_tasklet_id = eventOS_event_handler_create(notification_tasklet_func, MBED_CLIENT_NOTIFICATION_HANDLER_TASKLET_INIT_EVENT);
00043         assert(M2MNotificationHandler::_tasklet_id >= 0);
00044     }
00045 
00046     initialize_event();
00047 }
00048 
00049 M2MNotificationHandler::~M2MNotificationHandler()
00050 {
00051 }
00052 
00053 void M2MNotificationHandler::send_notification(M2MNsdlInterface *interface)
00054 {
00055     tr_debug("M2MNotificationHandler::send_notification");
00056     if (!_event.data.event_data) {
00057         _event.data.event_data = 1;
00058         _event.data.event_type = MBED_CLIENT_NOTIFICATION_HANDLER_EVENT;
00059         _event.data.data_ptr = interface;
00060 
00061         eventOS_event_send_user_allocated(&_event);
00062     } else {
00063         tr_debug("M2MNotificationHandler::send_notification - event already in queue");
00064     }
00065 }
00066 
00067 void M2MNotificationHandler::initialize_event()
00068 {
00069     _event.data.data_ptr = NULL;
00070     _event.data.event_data = 0;
00071     _event.data.event_id = 0;
00072     _event.data.sender = 0;
00073     _event.data.event_type = 0;
00074     _event.data.priority = ARM_LIB_MED_PRIORITY_EVENT;
00075     _event.data.receiver = M2MNotificationHandler::_tasklet_id;
00076 }