service/notification/src/consumer/NSConsumerScheduler.c

   1 //******************************************************************
   2 //
   3 // Copyright 2016 Samsung Electronics All Rights Reserved.
   4 //
   5 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
   6 //
   7 // Licensed under the Apache License, Version 2.0 (the "License");
   8 // you may not use this file except in compliance with the License.
   9 // You may obtain a copy of the License at
  10 //
  11 //      http://www.apache.org/licenses/LICENSE-2.0
  12 //
  13 // Unless required by applicable law or agreed to in writing, software
  14 // distributed under the License is distributed on an "AS IS" BASIS,
  15 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16 // See the License for the specific language governing permissions and
  17 // limitations under the License.
  18 //
  19 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  20
  21 #include "NSConsumerScheduler.h"
  22
  23 #include <stdlib.h>
  24 #include <stdbool.h>
  25 #include <unistd.h>
  26
  27 #include "oic_malloc.h"
  28 #include "oic_string.h"
  29 #include "ocrandom.h"
  30
  31 #include "NSStructs.h"
  32 #include "NSConstants.h"
  33 #include "NSConsumerCommon.h"
  34 #include "NSConsumerCommunication.h"
  35
  36 #include "NSThread.h"
  37 #include "NSConsumerQueue.h"
  38
  39 #include "NSConsumerDiscovery.h"
  40 #include "NSConsumerInternalTaskController.h"
  41 #include "NSConsumerNetworkEventListener.h"
  42 #include "NSConsumerSystem.h"
  43
  44 void * NSConsumerMsgHandleThreadFunc(void * handle);
  45
  46 void * NSConsumerMsgPushThreadFunc(void * data);
  47
  48 void NSConsumerTaskProcessing(NSTask * task);
  49
  50 NSConsumerThread ** NSGetMsgHandleThreadHandle()
  51 {
  52     static NSConsumerThread * handle = NULL;
  53     return & handle;
  54 }
  55
  56 void NSSetMsgHandleThreadHandle(NSConsumerThread * handle)
  57 {
  58    *(NSGetMsgHandleThreadHandle()) = handle;
  59 }
  60
  61 NSConsumerQueue ** NSGetMsgHandleQueue()
  62 {
  63     static NSConsumerQueue * queue = NULL;
  64     return & queue;
  65 }
  66
  67 void NSSetMsgHandleQueue(NSConsumerQueue * queue)
  68 {
  69    *(NSGetMsgHandleQueue()) = queue;
  70 }
  71
  72 NSResult NSConsumerMessageHandlerInit()
  73 {
  74     NSConsumerThread * handle = NULL;
  75     NSConsumerQueue * queue = NULL;
  76
  77     uint8_t uuid[UUID_SIZE] = {0,};
  78     char uuidString[UUID_STRING_SIZE] = {0,};
  79     OCRandomUuidResult randomRet = OCGenerateUuid(uuid);
  80     NS_VERIFY_NOT_NULL(randomRet == RAND_UUID_OK ? (void *) 1 : NULL, NS_ERROR);
  81     randomRet = OCConvertUuidToString(uuid, uuidString);
  82     NS_VERIFY_NOT_NULL(randomRet == RAND_UUID_OK ? (void *) 1 : NULL, NS_ERROR);
  83
  84     NSSetConsumerId(uuidString);
  85     NS_LOG_V(DEBUG, "Consumer ID : %s", *NSGetConsumerId());
  86
  87     NS_LOG(DEBUG, "listener init");
  88     NSResult ret = NSConsumerListenerInit();
  89     NS_VERIFY_NOT_NULL(ret == NS_OK ? (void *) 1 : NULL, NS_ERROR);
  90
  91     NS_LOG(DEBUG, "system init");
  92     ret = NSConsumerSystemInit();
  93     NS_VERIFY_NOT_NULL(ret == NS_OK ? (void *) 1 : NULL, NS_ERROR);
  94
  95     NS_LOG(DEBUG, "queue thread init");
  96     handle = NSThreadInit(NSConsumerMsgHandleThreadFunc, NULL);
  97     NS_VERIFY_NOT_NULL(handle, NS_ERROR);
  98     NSSetMsgHandleThreadHandle(handle);
  99
 100     NS_LOG(DEBUG, "create queue");
 101     queue = NSCreateQueue();
 102     NS_VERIFY_NOT_NULL(queue, NS_ERROR);
 103     NSSetMsgHandleQueue(queue);
 104
 105     return NS_OK;
 106 }
 107
 108 NSResult NSConsumerPushEvent(NSTask * task)
 109 {
 110     NSConsumerThread * thread = NSThreadInit(NSConsumerMsgPushThreadFunc, (void *) task);
 111     NS_VERIFY_NOT_NULL(thread, NS_ERROR);
 112
 113     NSDestroyThreadHandle(thread);
 114
 115     return NS_OK;
 116 }
 117
 118 void NSConsumerMessageHandlerExit()
 119 {
 120
 121     NSConsumerListenerTermiate();
 122     NSCancelAllSubscription();
 123     NSThreadStop(*(NSGetMsgHandleThreadHandle()));
 124     NSDestroyQueue(*(NSGetMsgHandleQueue()));
 125     NSSetMsgHandleQueue(NULL);
 126
 127     NSDestroyProviderCacheList();
 128 }
 129
 130 void * NSConsumerMsgHandleThreadFunc(void * threadHandle)
 131 {
 132     NSConsumerQueue * queue = *(NSGetMsgHandleQueue());;
 133     NSConsumerQueueObject * obj = NULL;
 134
 135     NS_LOG(DEBUG, "create thread for consumer message handle");
 136     NSConsumerThread * queueHandleThread = (NSConsumerThread *) threadHandle;
 137     NS_VERIFY_NOT_NULL(queueHandleThread, NULL);
 138
 139     while (true)
 140     {
 141         if (!queue)
 142         {
 143             queue = *(NSGetMsgHandleQueue());
 144             usleep(2000);
 145             continue;
 146         }
 147
 148         if (!queueHandleThread->isStarted && NSIsQueueEmpty(queue))
 149         {
 150             NS_LOG(ERROR, "msg handler thread will be terminated");
 151             break;
 152         }
 153
 154         if (NSIsQueueEmpty(queue))
 155         {
 156             usleep(2000);
 157             continue;
 158         }
 159
 160         NSThreadLock(queueHandleThread);
 161         NS_LOG(DEBUG, "msg handler working");
 162         obj = NSPopQueue(queue);
 163
 164         if (obj)
 165         {
 166             NSConsumerTaskProcessing((NSTask *)(obj->data));
 167         }
 168
 169         NSThreadUnlock(queueHandleThread);
 170
 171     }
 172
 173     return NULL;
 174 }
 175
 176 void * NSConsumerMsgPushThreadFunc(void * data)
 177 {
 178     NSThreadDetach();
 179
 180     NSConsumerQueueObject * obj = NULL;
 181     NSConsumerQueue * queue = NULL;
 182
 183     NS_LOG(DEBUG, "get queueThread handle");
 184     NSConsumerThread * msgHandleThread = *(NSGetMsgHandleThreadHandle());
 185     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(msgHandleThread, NULL, NSOICFree(data));
 186
 187     NS_LOG(DEBUG, "create queue object");
 188     obj = (NSConsumerQueueObject *)OICMalloc(sizeof(NSConsumerQueueObject));
 189     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(obj, NULL, NSOICFree(data));
 190
 191     obj->data = data;
 192     obj->next = NULL;
 193
 194     NSThreadLock(msgHandleThread);
 195
 196     queue = *(NSGetMsgHandleQueue());
 197     if (!queue)
 198     {
 199         NS_LOG(ERROR, "NSQueue is null. can not insert to queue");
 200         NSOICFree(data);
 201         NSOICFree(obj);
 202     }
 203     else
 204     {
 205         NSPushQueue(queue, obj);
 206     }
 207
 208     NSThreadUnlock(msgHandleThread);
 209
 210     return NULL;
 211 }
 212
 213 void NSProviderDeletedPostClean(
 214         NSTask * task, NSProvider_internal * prov1, NSProvider_internal * prov2)
 215 {
 216     if (task && task->taskData)
 217     {
 218         if (task->taskType == TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL)
 219         {
 220             NSRemoveProvider((NSProvider *) task->taskData);
 221         }
 222         else if (task->taskType == TASK_CONSUMER_PROVIDER_DELETED)
 223         {
 224             NSOICFree(task->taskData);
 225         }
 226         NSOICFree(task);
 227     }
 228
 229     if (prov1)
 230     {
 231         NSRemoveProvider_internal(prov1);
 232     }
 233
 234     if (prov2)
 235     {
 236         NSRemoveProvider_internal(prov2);
 237     }
 238 }
 239
 240 void NSConsumerTaskProcessing(NSTask * task)
 241 {
 242     switch (task->taskType)
 243     {
 244         case TASK_EVENT_CONNECTED:
 245         case TASK_EVENT_CONNECTED_TCP:
 246         case TASK_CONSUMER_REQ_DISCOVER:
 247         {
 248             NSConsumerDiscoveryTaskProcessing(task);
 249             break;
 250         }
 251         case TASK_CONSUMER_REQ_SUBSCRIBE:
 252         {
 253             NSProvider_internal * prov =
 254                     NSConsumerFindNSProvider(((NSProvider *)task->taskData)->providerId);
 255             NS_VERIFY_NOT_NULL_V(prov);
 256             NSTask * subTask = NSMakeTask(TASK_CONSUMER_REQ_SUBSCRIBE, prov);
 257             NS_VERIFY_NOT_NULL_V(subTask);
 258             NSConsumerCommunicationTaskProcessing(subTask);
 259
 260             NSRemoveProvider((NSProvider *)task->taskData);
 261             NSOICFree(task);
 262             break;
 263         }
 264         case TASK_SEND_SYNCINFO:
 265         case TASK_CONSUMER_REQ_TOPIC_LIST:
 266         {
 267             NSConsumerCommunicationTaskProcessing(task);
 268             break;
 269         }
 270         case TASK_CONSUMER_GET_TOPIC_LIST:
 271         case TASK_CONSUMER_SELECT_TOPIC_LIST:
 272         {
 273             NSConsumerCommunicationTaskProcessing(task);
 274             break;
 275         }
 276         case TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL:
 277         case TASK_CONSUMER_PROVIDER_DELETED:
 278         {
 279             NSProvider_internal * data = NULL;
 280
 281             if (task->taskType == TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL)
 282             {
 283                 data = NSConsumerFindNSProvider(((NSProvider *) task->taskData)->providerId);
 284                 NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 285                         data, NSProviderDeletedPostClean(task, NULL, NULL));
 286             }
 287             else if (task->taskType == TASK_CONSUMER_PROVIDER_DELETED)
 288             {
 289                 data = NSFindProviderFromAddr((OCDevAddr *) task->taskData);
 290                 NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 291                         data, NSProviderDeletedPostClean(task, NULL, NULL));
 292             }
 293
 294             NSProvider_internal * data2 = NSCopyProvider_internal(data);
 295             NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 296                         data2, NSProviderDeletedPostClean(task, data, NULL));
 297
 298             NSTask * conTask = NSMakeTask(TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL, data);
 299             NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 300                         conTask, NSProviderDeletedPostClean(task, data, data2));
 301             NSConsumerCommunicationTaskProcessing(conTask);
 302
 303             NSTask * conTask2 = NSMakeTask(TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL, data2);
 304             NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 305                         conTask, NSProviderDeletedPostClean(task, NULL, data2));
 306             NSConsumerInternalTaskProcessing(conTask2);
 307
 308             NSProviderDeletedPostClean(task, NULL, NULL);
 309             break;
 310         }
 311         case TASK_RECV_SYNCINFO:
 312         case TASK_CONSUMER_RECV_MESSAGE:
 313         case TASK_CONSUMER_SENT_REQ_OBSERVE:
 314         case TASK_CONSUMER_RECV_PROVIDER_CHANGED:
 315         case TASK_MAKE_SYNCINFO:
 316         case TASK_CONSUMER_REQ_TOPIC_URI:
 317         case TASK_CONSUMER_RECV_TOPIC_LIST:
 318         {
 319             NSConsumerInternalTaskProcessing(task);
 320             break;
 321         }
 322         case TASK_CONSUMER_PROVIDER_DISCOVERED:
 323         {
 324             NSTask * getTopicTask = (NSTask *)OICMalloc(sizeof(NSTask));
 325             NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(getTopicTask,
 326                         NSRemoveProvider_internal((NSProvider_internal *) task->taskData));
 327             getTopicTask->nextTask = NULL;
 328             getTopicTask->taskData =
 329                     (void *) NSCopyProvider_internal((NSProvider_internal *) task->taskData);
 330             getTopicTask->taskType = TASK_CONSUMER_REQ_TOPIC_LIST;
 331             NSConsumerCommunicationTaskProcessing(getTopicTask);
 332             NSConsumerInternalTaskProcessing(task);
 333             break;
 334         }
 335         default:
 336         {
 337             NS_LOG(ERROR, "Unknown type of task");
 338             break;
 339         }
 340     }
 341 }
 342
 343 NSProvider_internal * NSConsumerFindNSProvider(const char * providerId)
 344 {
 345     NS_VERIFY_NOT_NULL(providerId, NULL);
 346
 347     return NSProviderCacheFind(providerId);
 348 }