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     char * consumerUuid = (char *)OCGetServerInstanceIDString();
  78     NS_VERIFY_NOT_NULL(consumerUuid, NS_ERROR);
  79
  80     NSSetConsumerId(consumerUuid);
  81     NS_LOG_V(DEBUG, "Consumer ID : %s", *NSGetConsumerId());
  82
  83     NS_LOG(DEBUG, "listener init");
  84     NSResult ret = NSConsumerListenerInit();
  85     NS_VERIFY_NOT_NULL(ret == NS_OK ? (void *) 1 : NULL, NS_ERROR);
  86
  87     NS_LOG(DEBUG, "system init");
  88     ret = NSConsumerSystemInit();
  89     NS_VERIFY_NOT_NULL(ret == NS_OK ? (void *) 1 : NULL, NS_ERROR);
  90
  91     NS_LOG(DEBUG, "queue thread init");
  92     handle = NSThreadInit(NSConsumerMsgHandleThreadFunc, NULL);
  93     NS_VERIFY_NOT_NULL(handle, NS_ERROR);
  94     NSSetMsgHandleThreadHandle(handle);
  95
  96     NS_LOG(DEBUG, "create queue");
  97     queue = NSCreateQueue();
  98     NS_VERIFY_NOT_NULL(queue, NS_ERROR);
  99     NSSetMsgHandleQueue(queue);
 100
 101     return NS_OK;
 102 }
 103
 104 NSResult NSConsumerPushEvent(NSTask * task)
 105 {
 106     NSConsumerThread * thread = NSThreadInit(NSConsumerMsgPushThreadFunc, (void *) task);
 107     NS_VERIFY_NOT_NULL(thread, NS_ERROR);
 108
 109     NSDestroyThreadHandle(thread);
 110
 111     return NS_OK;
 112 }
 113
 114 void NSConsumerMessageHandlerExit()
 115 {
 116
 117     NSConsumerListenerTermiate();
 118     NSCancelAllSubscription();
 119
 120     NSThreadStop(*(NSGetMsgHandleThreadHandle()));
 121     NSSetMsgHandleThreadHandle(NULL);
 122
 123     NSDestroyQueue(*(NSGetMsgHandleQueue()));
 124     NSSetMsgHandleQueue(NULL);
 125
 126     NSDestroyInternalCachedList();
 127 }
 128
 129 void * NSConsumerMsgHandleThreadFunc(void * threadHandle)
 130 {
 131     NSConsumerQueue * queue = *(NSGetMsgHandleQueue());;
 132     NSConsumerQueueObject * obj = NULL;
 133
 134     NS_LOG(DEBUG, "create thread for consumer message handle");
 135     NSConsumerThread * queueHandleThread = (NSConsumerThread *) threadHandle;
 136     NS_VERIFY_NOT_NULL(queueHandleThread, NULL);
 137
 138     while (true)
 139     {
 140         if (!queue)
 141         {
 142             queue = *(NSGetMsgHandleQueue());
 143             usleep(2000);
 144             continue;
 145         }
 146
 147         if (!queueHandleThread->isStarted && NSIsQueueEmpty(queue))
 148         {
 149             NS_LOG(ERROR, "msg handler thread will be terminated");
 150             break;
 151         }
 152
 153         if (NSIsQueueEmpty(queue))
 154         {
 155             usleep(2000);
 156             continue;
 157         }
 158
 159         NSThreadLock(queueHandleThread);
 160         NS_LOG(DEBUG, "msg handler working");
 161         obj = NSPopQueue(queue);
 162
 163         if (obj)
 164         {
 165             NSConsumerTaskProcessing((NSTask *)(obj->data));
 166         }
 167
 168         NSThreadUnlock(queueHandleThread);
 169
 170     }
 171
 172     return NULL;
 173 }
 174
 175 void * NSConsumerMsgPushThreadFunc(void * data)
 176 {
 177     NSThreadDetach();
 178
 179     NSConsumerQueueObject * obj = NULL;
 180     NSConsumerQueue * queue = NULL;
 181
 182     NS_LOG(DEBUG, "get queueThread handle");
 183     NSConsumerThread * msgHandleThread = *(NSGetMsgHandleThreadHandle());
 184     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(msgHandleThread, NULL, NSOICFree(data));
 185
 186     NS_LOG(DEBUG, "create queue object");
 187     obj = (NSConsumerQueueObject *)OICMalloc(sizeof(NSConsumerQueueObject));
 188     NS_VERIFY_NOT_NULL_WITH_POST_CLEANING(obj, NULL, NSOICFree(data));
 189
 190     obj->data = data;
 191     obj->next = NULL;
 192
 193     NSThreadLock(msgHandleThread);
 194
 195     queue = *(NSGetMsgHandleQueue());
 196     if (!queue)
 197     {
 198         NS_LOG(ERROR, "NSQueue is null. can not insert to queue");
 199         NSOICFree(data);
 200         NSOICFree(obj);
 201     }
 202     else
 203     {
 204         NSPushConsumerQueue(queue, obj);
 205     }
 206
 207     NSThreadUnlock(msgHandleThread);
 208
 209     return NULL;
 210 }
 211
 212 void NSProviderDeletedPostClean(
 213         NSTask * task, NSProvider_internal * prov1, NSProvider_internal * prov2)
 214 {
 215     if (task && task->taskData)
 216     {
 217         if (task->taskType == TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL)
 218         {
 219             NSRemoveProvider((NSProvider *) task->taskData);
 220         }
 221         else if (task->taskType == TASK_CONSUMER_PROVIDER_DELETED)
 222         {
 223             NSOICFree(task->taskData);
 224         }
 225         NSOICFree(task);
 226     }
 227
 228     if (prov1)
 229     {
 230         NSRemoveProvider_internal(prov1);
 231     }
 232
 233     if (prov2)
 234     {
 235         NSRemoveProvider_internal(prov2);
 236     }
 237 }
 238
 239 void NSConsumerTaskProcessing(NSTask * task)
 240 {
 241     switch (task->taskType)
 242     {
 243         case TASK_EVENT_CONNECTED:
 244         case TASK_EVENT_CONNECTED_TCP:
 245         case TASK_CONSUMER_REQ_DISCOVER:
 246         {
 247             NSConsumerDiscoveryTaskProcessing(task);
 248             break;
 249         }
 250         case TASK_CONSUMER_REQ_SUBSCRIBE:
 251         {
 252             NSProvider_internal * prov =
 253                     NSConsumerFindNSProvider(((NSProvider *)task->taskData)->providerId);
 254             NS_VERIFY_NOT_NULL_V(prov);
 255             NSTask * subTask = NSMakeTask(TASK_CONSUMER_REQ_SUBSCRIBE, prov);
 256             NS_VERIFY_NOT_NULL_V(subTask);
 257             NSConsumerCommunicationTaskProcessing(subTask);
 258
 259             NSRemoveProvider((NSProvider *)task->taskData);
 260             NSOICFree(task);
 261             break;
 262         }
 263         case TASK_SEND_SYNCINFO:
 264         case TASK_CONSUMER_REQ_TOPIC_LIST:
 265         case TASK_CONSUMER_SELECT_TOPIC_LIST:
 266         {
 267             NSConsumerCommunicationTaskProcessing(task);
 268             break;
 269         }
 270         case TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL:
 271         case TASK_CONSUMER_PROVIDER_DELETED:
 272         {
 273             NSProvider_internal * data = NULL;
 274
 275             if (task->taskType == TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL)
 276             {
 277                 data = NSConsumerFindNSProvider(((NSProvider *) task->taskData)->providerId);
 278                 NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 279                         data, NSProviderDeletedPostClean(task, NULL, NULL));
 280             }
 281             else if (task->taskType == TASK_CONSUMER_PROVIDER_DELETED)
 282             {
 283                 data = NSFindProviderFromAddr((OCDevAddr *) task->taskData);
 284                 NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 285                         data, NSProviderDeletedPostClean(task, NULL, NULL));
 286             }
 287
 288             NSProvider_internal * data2 = NSCopyProvider_internal(data);
 289             NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 290                         data2, NSProviderDeletedPostClean(task, data, NULL));
 291
 292             NSTask * conTask = NSMakeTask(TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL, data);
 293             NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 294                         conTask, NSProviderDeletedPostClean(task, data, data2));
 295             NSConsumerCommunicationTaskProcessing(conTask);
 296
 297             NSTask * conTask2 = NSMakeTask(TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL, data2);
 298             NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(
 299                         conTask, NSProviderDeletedPostClean(task, NULL, data2));
 300             NSConsumerInternalTaskProcessing(conTask2);
 301
 302             NSProviderDeletedPostClean(task, NULL, NULL);
 303             break;
 304         }
 305         case TASK_RECV_SYNCINFO:
 306         case TASK_CONSUMER_RECV_MESSAGE:
 307         case TASK_CONSUMER_SENT_REQ_OBSERVE:
 308         case TASK_CONSUMER_RECV_PROVIDER_CHANGED:
 309         case TASK_MAKE_SYNCINFO:
 310         case TASK_CONSUMER_REQ_TOPIC_URI:
 311         case TASK_CONSUMER_RECV_TOPIC_LIST:
 312         {
 313             NSConsumerInternalTaskProcessing(task);
 314             break;
 315         }
 316         case TASK_CONSUMER_PROVIDER_DISCOVERED:
 317         {
 318             NSTask * getTopicTask = (NSTask *)OICMalloc(sizeof(NSTask));
 319             NS_VERIFY_NOT_NULL_WITH_POST_CLEANING_V(getTopicTask,
 320                         NSRemoveProvider_internal((NSProvider_internal *) task->taskData));
 321             getTopicTask->nextTask = NULL;
 322             getTopicTask->taskData =
 323                     (void *) NSCopyProvider_internal((NSProvider_internal *) task->taskData);
 324             getTopicTask->taskType = TASK_CONSUMER_REQ_TOPIC_LIST;
 325             NSConsumerCommunicationTaskProcessing(getTopicTask);
 326             NSConsumerInternalTaskProcessing(task);
 327             break;
 328         }
 329         default:
 330         {
 331             NS_LOG(ERROR, "Unknown type of task");
 332             break;
 333         }
 334     }
 335 }
 336
 337 NSProvider_internal * NSConsumerFindNSProvider(const char * providerId)
 338 {
 339     NS_VERIFY_NOT_NULL(providerId, NULL);
 340
 341     return NSProviderCacheFind(providerId);
 342 }