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     NSDestroyMessageCacheList();
 128     NSDestroyProviderCacheList();
 129 }
 130
 131 void * NSConsumerMsgHandleThreadFunc(void * threadHandle)
 132 {
 133     NSConsumerQueue * queue = *(NSGetMsgHandleQueue());;
 134     NSConsumerQueueObject * obj = NULL;
 135
 136     NS_LOG(DEBUG, "create thread for consumer message handle");
 137     NSConsumerThread * queueHandleThread = (NSConsumerThread *) threadHandle;
 138     NS_VERIFY_NOT_NULL(queueHandleThread, NULL);
 139
 140     while (true)
 141     {
 142         if (!queue)
 143         {
 144             queue = *(NSGetMsgHandleQueue());
 145             usleep(2000);
 146             continue;
 147         }
 148
 149         if (!queueHandleThread->isStarted && NSIsQueueEmpty(queue))
 150         {
 151             NS_LOG(ERROR, "msg handler thread will be terminated");
 152             break;
 153         }
 154
 155         if (NSIsQueueEmpty(queue))
 156         {
 157             usleep(2000);
 158             continue;
 159         }
 160
 161         NSThreadLock(queueHandleThread);
 162         NS_LOG(DEBUG, "msg handler working");
 163         obj = NSPopQueue(queue);
 164
 165         if (obj)
 166         {
 167             NSConsumerTaskProcessing((NSTask *)(obj->data));
 168         }
 169
 170         NSThreadUnlock(queueHandleThread);
 171
 172     }
 173
 174     return NULL;
 175 }
 176
 177 void * NSConsumerMsgPushThreadFunc(void * data)
 178 {
 179     NSThreadDetach();
 180
 181     NSConsumerQueueObject * obj = NULL;
 182     NSConsumerQueue * queue = NULL;
 183
 184     NS_LOG(DEBUG, "get queueThread handle");
 185     NSConsumerThread * msgHandleThread = *(NSGetMsgHandleThreadHandle());
 186     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(msgHandleThread, NULL, NSOICFree(data));
 187
 188     NS_LOG(DEBUG, "create queue object");
 189     obj = (NSConsumerQueueObject *)OICMalloc(sizeof(NSConsumerQueueObject));
 190     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(obj, NULL, NSOICFree(data));
 191
 192     obj->data = data;
 193     obj->next = NULL;
 194
 195     NSThreadLock(msgHandleThread);
 196
 197     queue = *(NSGetMsgHandleQueue());
 198     if (!queue)
 199     {
 200         NS_LOG(ERROR, "NSQueue is null. can not insert to queue");
 201         NSOICFree(data);
 202         NSOICFree(obj);
 203     }
 204     else
 205     {
 206         NSPushQueue(queue, obj);
 207     }
 208
 209     NSThreadUnlock(msgHandleThread);
 210
 211     return NULL;
 212 }
 213
 214 void NSProviderDeletedPostClean(
 215         NSTask * task, NSProvider_internal * prov1, NSProvider_internal * prov2)
 216 {
 217     if (task && task->taskData)
 218     {
 219         if (task->taskType == TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL)
 220         {
 221             NSRemoveProvider((NSProvider *) task->taskData);
 222         }
 223         else if (task->taskType == TASK_CONSUMER_PROVIDER_DELETED)
 224         {
 225             NSOICFree(task->taskData);
 226         }
 227         NSOICFree(task);
 228     }
 229
 230     if (prov1)
 231     {
 232         NSRemoveProvider_internal(prov1);
 233     }
 234
 235     if (prov2)
 236     {
 237         NSRemoveProvider_internal(prov2);
 238     }
 239 }
 240
 241 void NSConsumerTaskProcessing(NSTask * task)
 242 {
 243     switch (task->taskType)
 244     {
 245         case TASK_EVENT_CONNECTED:
 246         case TASK_EVENT_CONNECTED_TCP:
 247         case TASK_CONSUMER_REQ_DISCOVER:
 248         {
 249             NSConsumerDiscoveryTaskProcessing(task);
 250             break;
 251         }
 252         case TASK_CONSUMER_REQ_SUBSCRIBE:
 253         {
 254             NSProvider_internal * prov =
 255                     NSConsumerFindNSProvider(((NSProvider *)task->taskData)->providerId);
 256             NS_VERIFY_NOT_NULL_V(prov);
 257             NSTask * subTask = NSMakeTask(TASK_CONSUMER_REQ_SUBSCRIBE, prov);
 258             NS_VERIFY_NOT_NULL_V(subTask);
 259             NSConsumerCommunicationTaskProcessing(subTask);
 260
 261             NSRemoveProvider((NSProvider *)task->taskData);
 262             NSOICFree(task);
 263             break;
 264         }
 265         case TASK_SEND_SYNCINFO:
 266         case TASK_CONSUMER_REQ_TOPIC_LIST:
 267         {
 268             NSConsumerCommunicationTaskProcessing(task);
 269             break;
 270         }
 271         case TASK_CONSUMER_GET_TOPIC_LIST:
 272         case TASK_CONSUMER_SELECT_TOPIC_LIST:
 273         {
 274             NSConsumerCommunicationTaskProcessing(task);
 275             break;
 276         }
 277         case TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL:
 278         case TASK_CONSUMER_PROVIDER_DELETED:
 279         {
 280             NSProvider_internal * data = NULL;
 281
 282             if (task->taskType == TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL)
 283             {
 284                 data = NSConsumerFindNSProvider(((NSProvider *) task->taskData)->providerId);
 285                 NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 286                         data, NSProviderDeletedPostClean(task, NULL, NULL));
 287             }
 288             else if (task->taskType == TASK_CONSUMER_PROVIDER_DELETED)
 289             {
 290                 data = NSFindProviderFromAddr((OCDevAddr *) task->taskData);
 291                 NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 292                         data, NSProviderDeletedPostClean(task, NULL, NULL));
 293             }
 294
 295             NSProvider_internal * data2 = NSCopyProvider_internal(data);
 296             NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 297                         data2, NSProviderDeletedPostClean(task, data, NULL));
 298
 299             NSTask * conTask = NSMakeTask(TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL, data);
 300             NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 301                         conTask, NSProviderDeletedPostClean(task, data, data2));
 302             NSConsumerCommunicationTaskProcessing(conTask);
 303
 304             NSTask * conTask2 = NSMakeTask(TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL, data2);
 305             NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 306                         conTask, NSProviderDeletedPostClean(task, NULL, data2));
 307             NSConsumerInternalTaskProcessing(conTask2);
 308
 309             NSProviderDeletedPostClean(task, NULL, NULL);
 310             break;
 311         }
 312         case TASK_RECV_SYNCINFO:
 313         case TASK_CONSUMER_RECV_MESSAGE:
 314         case TASK_CONSUMER_SENT_REQ_OBSERVE:
 315         case TASK_CONSUMER_RECV_PROVIDER_CHANGED:
 316         case TASK_MAKE_SYNCINFO:
 317         case TASK_CONSUMER_REQ_TOPIC_URI:
 318         case TASK_CONSUMER_RECV_TOPIC_LIST:
 319         {
 320             NSConsumerInternalTaskProcessing(task);
 321             break;
 322         }
 323         case TASK_CONSUMER_PROVIDER_DISCOVERED:
 324         {
 325             NSTask * getTopicTask = (NSTask *)OICMalloc(sizeof(NSTask));
 326             NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(getTopicTask,
 327                         NSRemoveProvider_internal((NSProvider_internal *) task->taskData));
 328             getTopicTask->nextTask = NULL;
 329             getTopicTask->taskData =
 330                     (void *) NSCopyProvider_internal((NSProvider_internal *) task->taskData);
 331             getTopicTask->taskType = TASK_CONSUMER_REQ_TOPIC_LIST;
 332             NSConsumerCommunicationTaskProcessing(getTopicTask);
 333             NSConsumerInternalTaskProcessing(task);
 334             break;
 335         }
 336         default:
 337         {
 338             NS_LOG(ERROR, "Unknown type of task");
 339             break;
 340         }
 341     }
 342 }
 343
 344 NSMessage * NSConsumerFindNSMessage(const char* messageId)
 345 {
 346     NS_VERIFY_NOT_NULL(messageId, NULL);
 347
 348     return NSMessageCacheFind(messageId);
 349 }
 350
 351 NSProvider_internal * NSConsumerFindNSProvider(const char * providerId)
 352 {
 353     NS_VERIFY_NOT_NULL(providerId, NULL);
 354
 355     return NSProviderCacheFind(providerId);
 356 }