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 NSConsumerTaskProcessing(NSTask * task)
 215 {
 216     switch (task->taskType)
 217     {
 218         case TASK_EVENT_CONNECTED:
 219         case TASK_EVENT_CONNECTED_TCP:
 220         case TASK_CONSUMER_REQ_DISCOVER:
 221         {
 222             NSConsumerDiscoveryTaskProcessing(task);
 223             break;
 224         }
 225         case TASK_CONSUMER_REQ_SUBSCRIBE:
 226         {
 227             NSProvider_internal * prov =
 228                     NSConsumerFindNSProvider(((NSProvider *)task->taskData)->providerId);
 229             NS_VERIFY_NOT_NULL_V(prov);
 230             NSTask * subTask = NSMakeTask(TASK_CONSUMER_REQ_SUBSCRIBE, prov);
 231             NS_VERIFY_NOT_NULL_V(subTask);
 232             NSConsumerCommunicationTaskProcessing(subTask);
 233
 234             NSRemoveProvider((NSProvider *)task->taskData);
 235             NSOICFree(task);
 236             break;
 237         }
 238         case TASK_SEND_SYNCINFO:
 239         case TASK_CONSUMER_REQ_TOPIC_LIST:
 240         {
 241             NSConsumerCommunicationTaskProcessing(task);
 242             break;
 243         }
 244         case TASK_CONSUMER_GET_TOPIC_LIST:
 245         case TASK_CONSUMER_SELECT_TOPIC_LIST:
 246         {
 247             NSProvider_internal * prov =
 248                     NSConsumerFindNSProvider(((NSProvider *)task->taskData)->providerId);
 249             NS_VERIFY_NOT_NULL_V(prov);
 250             NSTask * topTask = NSMakeTask(task->taskType, prov);
 251             NS_VERIFY_NOT_NULL_V(topTask);
 252             NSConsumerCommunicationTaskProcessing(topTask);
 253
 254             NSRemoveProvider((NSProvider *)task->taskData);
 255             NSOICFree(task);
 256             break;
 257         }
 258         case TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL:
 259         {
 260             NSProvider_internal * data =
 261                     NSConsumerFindNSProvider(((NSProvider *)task->taskData)->providerId);
 262             NS_VERIFY_NOT_NULL_V(data);
 263             NSTask * conTask = NSMakeTask(TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL, data);
 264             NS_VERIFY_NOT_NULL_V(conTask);
 265             NSConsumerCommunicationTaskProcessing(conTask);
 266
 267             data = NSConsumerFindNSProvider(((NSProvider *)task->taskData)->providerId);
 268             NS_VERIFY_NOT_NULL_V(data);
 269             NSTask * conTask2 = NSMakeTask(TASK_CONSUMER_REQ_SUBSCRIBE_CANCEL, data);
 270             NSConsumerInternalTaskProcessing(conTask2);
 271
 272             NSRemoveProvider((NSProvider *)task->taskData);
 273             NSOICFree(task);
 274             break;
 275         }
 276         case TASK_RECV_SYNCINFO:
 277         case TASK_CONSUMER_RECV_MESSAGE:
 278         case TASK_CONSUMER_PROVIDER_DISCOVERED:
 279         case TASK_CONSUMER_RECV_PROVIDER_CHANGED:
 280         case TASK_MAKE_SYNCINFO:
 281         case TASK_CONSUMER_REQ_TOPIC_URI:
 282         case TASK_CONSUMER_RECV_TOPIC_LIST:
 283         {
 284             NSConsumerInternalTaskProcessing(task);
 285             break;
 286         }
 287         default:
 288         {
 289             NS_LOG(ERROR, "Unknown type of task");
 290             break;
 291         }
 292     }
 293 }
 294
 295 NSMessage * NSConsumerFindNSMessage(const char* messageId)
 296 {
 297     NS_VERIFY_NOT_NULL(messageId, NULL);
 298
 299     return NSMessageCacheFind(messageId);
 300 }
 301
 302 NSProvider_internal * NSConsumerFindNSProvider(const char * providerId)
 303 {
 304     NS_VERIFY_NOT_NULL(providerId, NULL);
 305
 306     return NSProviderCacheFind(providerId);
 307 }