Make OCProcessEvent method.
[platform/upstream/iotivity.git] / resource / csdk / stack / samples / linux / SimpleClientServer / ocserver.cpp
old mode 100644 (file)
new mode 100755 (executable)
index 2d8bd54..e9e481a
 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 
 
+#include "iotivity_config.h"
 #include <stdio.h>
 #include <string.h>
 #include <string>
 #include <stdlib.h>
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
+#ifdef HAVE_WINDOWS_H
+#include <windows.h>
+#endif
 #include <signal.h>
+#ifdef HAVE_PTHREAD_H
 #include <pthread.h>
+#endif
 #include <array>
+#include "oic_malloc.h"
+#include <getopt.h>
 #include "ocstack.h"
 #include "logger.h"
-#include "cJSON.h"
+#include "ocpayload.h"
 #include "ocserver.h"
+#include "common.h"
 
 //string length of "/a/light/" + std::numeric_limits<int>::digits10 + '\0'"
 // 9 + 9 + 1 = 19
@@ -40,6 +51,9 @@ static int gObserveNotifyType = 3;
 
 int gQuitFlag = 0;
 int gLightUnderObservation = 0;
+#ifdef WITH_PROCESS_EVENT
+static oc_event processEvent = NULL;
+#endif
 
 static LightResource Light;
 // This variable determines instance number of the Light resource.
@@ -50,37 +64,32 @@ static LightResource gLightInstance[SAMPLE_MAX_NUM_POST_INSTANCE];
 
 Observers interestedObservers[SAMPLE_MAX_NUM_OBSERVATIONS];
 
+pthread_t threadId_observe;
+pthread_t threadId_presence;
+
+static bool observeThreadStarted = false;
+
 #ifdef WITH_PRESENCE
-static int stopPresenceCount = 10;
 #define numPresenceResources (2)
 #endif
 
-//TODO: Follow the pattern used in constructJsonResponse() when the payload is decided.
-const char responsePayloadDeleteOk[] =
-        "{App determines payload: Delete Resource operation succeeded.}";
-const char responsePayloadDeleteNotOK[] =
-        "{App determines payload: Delete Resource operation failed.}";
-const char responsePayloadResourceDoesNotExist[] =
-        "{App determines payload: The resource does not exist.}";
-const char responsePayloadDeleteResourceNotSupported[] =
-        "{App determines payload: The request is received for a non-support resource.}";
-
-
 char *gResourceUri= (char *)"/a/light";
-const char *dateOfManufacture = "myDateOfManufacture";
+const char *dateOfManufacture = "2016-01-15";
 const char *deviceName = "myDeviceName";
-const char *deviceUUID = "myDeviceUUID";
+const char *deviceUUID = "51b55ddc-ccbb-4cb3-a57f-494eeca13a21";
 const char *firmwareVersion = "myFirmwareVersion";
 const char *manufacturerName = "myName";
 const char *operatingSystemVersion = "myOS";
 const char *hardwareVersion = "myHardwareVersion";
-const char* platformID = "myPlatformID";
-const char *manufacturerUrl = "myManufacturerUrl";
+const char *platformID = "0A3E0D6F-DBF5-404E-8719-D6880042463A";
+const char *manufacturerLink = "https://www.iotivity.org";
 const char *modelNumber = "myModelNumber";
 const char *platformVersion = "myPlatformVersion";
-const char *supportUrl = "mySupportUrl";
+const char *supportLink = "https://www.iotivity.org";
 const char *version = "myVersion";
 const char *systemTime = "2015-05-15T11.04";
+const char *specVersion = "core.1.1.0";
+const char *dataModelVersions = "res.1.1.0,sh.1.1.0";
 
 // Entity handler should check for resourceTypeName and ResourceInterface in order to GET
 // the existence of a known resource
@@ -90,13 +99,33 @@ const char *resourceInterface = OC_RSRVD_INTERFACE_DEFAULT;
 OCPlatformInfo platformInfo;
 OCDeviceInfo deviceInfo;
 
+OCRepPayload* getPayload(const char* uri, int64_t power, bool state)
+{
+    OCRepPayload* payload = OCRepPayloadCreate();
+    if(!payload)
+    {
+        OIC_LOG(ERROR, TAG, PCF("Failed to allocate Payload"));
+        return nullptr;
+    }
+
+    OCRepPayloadSetUri(payload, uri);
+    OCRepPayloadSetPropBool(payload, "state", state);
+    OCRepPayloadSetPropInt(payload, "power", power);
+
+    return payload;
+}
+
 //This function takes the request as an input and returns the response
-//in JSON format.
-char* constructJsonResponse (OCEntityHandlerRequest *ehRequest)
+OCRepPayload* constructResponse(OCEntityHandlerRequest *ehRequest)
 {
-    cJSON *json = cJSON_CreateObject();
-    cJSON *format;
-    char *jsonResponse;
+    if(ehRequest->payload && ehRequest->payload->type != PAYLOAD_TYPE_REPRESENTATION)
+    {
+        OIC_LOG(ERROR, TAG, PCF("Incoming payload not a representation"));
+        return nullptr;
+    }
+
+    OCRepPayload* input = reinterpret_cast<OCRepPayload*>(ehRequest->payload);
+
     LightResource *currLightResource = &Light;
 
     if (ehRequest->resource == gLightInstance[0].handle)
@@ -112,43 +141,21 @@ char* constructJsonResponse (OCEntityHandlerRequest *ehRequest)
 
     if(OC_REST_PUT == ehRequest->method)
     {
-        // Get cJSON pointer to query
-        cJSON *putJson = cJSON_Parse(ehRequest->reqJSONPayload);
-
-        if(!putJson)
-        {
-            OC_LOG_V(ERROR, TAG, "Failed to parse JSON: %s", ehRequest->reqJSONPayload);
-            return NULL;
-        }
-
-        // Get root of JSON payload, then the 1st resource.
-        cJSON* carrier = cJSON_GetObjectItem(putJson, "oic");
-        carrier = cJSON_GetArrayItem(carrier, 0);
-        carrier = cJSON_GetObjectItem(carrier, "rep");
-
-        cJSON* prop = cJSON_GetObjectItem(carrier,"power");
-        if (prop)
+        // Get pointer to query
+        int64_t pow;
+        if(OCRepPayloadGetPropInt(input, "power", &pow))
         {
-            currLightResource->power =prop->valueint;
+            currLightResource->power =pow;
         }
 
-        prop = cJSON_GetObjectItem(carrier,"state");
-        if (prop)
+        bool state;
+        if(OCRepPayloadGetPropBool(input, "state", &state))
         {
-            currLightResource->state = prop->valueint;
+            currLightResource->state = state;
         }
-        cJSON_Delete(putJson);
     }
 
-    cJSON_AddStringToObject(json,"href",gResourceUri);
-    cJSON_AddItemToObject(json, "rep", format=cJSON_CreateObject());
-    cJSON_AddBoolToObject(format, "state", currLightResource->state);
-    cJSON_AddNumberToObject(format, "power", currLightResource->power);
-
-    jsonResponse = cJSON_Print(json);
-    cJSON_Delete(json);
-
-    return jsonResponse;
+    return getPayload(gResourceUri, currLightResource->power, currLightResource->state);
 }
 
 /*
@@ -172,7 +179,7 @@ bool checkIfQueryForPowerPassed(char * query)
             int powerRequested = atoi(pointerToOperator + 1);
             if (Light.power > powerRequested)
             {
-                OC_LOG_V(INFO, TAG, "Current power: %d. Requested: <%d", Light.power
+                OIC_LOG_V(INFO, TAG, "Current power: %d. Requested: <%d", Light.power
                             , powerRequested);
                 return false;
             }
@@ -186,13 +193,13 @@ bool checkIfQueryForPowerPassed(char * query)
  */
 OCEntityHandlerResult ValidateQueryParams (OCEntityHandlerRequest *entityHandlerRequest)
 {
-    OC_LOG_V(INFO, TAG, PCF("Received query %s"), entityHandlerRequest->query);
-    OC_LOG(INFO, TAG, PCF("Not processing query"));
+    OIC_LOG_V(INFO, TAG, PCF("Received query %s"), entityHandlerRequest->query);
+    OIC_LOG(INFO, TAG, PCF("Not processing query"));
     return OC_EH_OK;
 }
 
 OCEntityHandlerResult ProcessGetRequest (OCEntityHandlerRequest *ehRequest,
-        char *payload, uint16_t maxPayloadSize)
+        OCRepPayload **payload)
 {
     OCEntityHandlerResult ehResult;
     bool queryPassed = checkIfQueryForPowerPassed(ehRequest->query);
@@ -200,26 +207,15 @@ OCEntityHandlerResult ProcessGetRequest (OCEntityHandlerRequest *ehRequest,
     // Empty payload if the query has no match.
     if (queryPassed)
     {
-        char *getResp = constructJsonResponse(ehRequest);
+        OCRepPayload *getResp = constructResponse(ehRequest);
         if(!getResp)
         {
-            OC_LOG(ERROR, TAG, "constructJsonResponse failed");
+            OIC_LOG(ERROR, TAG, "constructResponse failed");
             return OC_EH_ERROR;
         }
 
-        if (maxPayloadSize > strlen (getResp))
-        {
-            strncpy(payload, getResp, strlen(getResp));
-            ehResult = OC_EH_OK;
-        }
-        else
-        {
-            OC_LOG_V (INFO, TAG, "Response buffer: %d bytes is too small",
-                    maxPayloadSize);
-            ehResult = OC_EH_ERROR;
-        }
-
-        free(getResp);
+        *payload = getResp;
+        ehResult = OC_EH_OK;
     }
     else
     {
@@ -230,41 +226,28 @@ OCEntityHandlerResult ProcessGetRequest (OCEntityHandlerRequest *ehRequest,
 }
 
 OCEntityHandlerResult ProcessPutRequest (OCEntityHandlerRequest *ehRequest,
-        char *payload, uint16_t maxPayloadSize)
+        OCRepPayload** payload)
 {
     OCEntityHandlerResult ehResult;
-    char *putResp = constructJsonResponse(ehRequest);
+    OCRepPayload *putResp = constructResponse(ehRequest);
 
     if(!putResp)
     {
-        OC_LOG(ERROR, TAG, "Failed to construct Json response");
+        OIC_LOG(ERROR, TAG, "Failed to construct Json response");
         return OC_EH_ERROR;
     }
 
-    if (maxPayloadSize > strlen ((char *)putResp))
-    {
-        strncpy(payload, putResp, strlen((char *)putResp));
-        ehResult = OC_EH_OK;
-    }
-    else
-    {
-        OC_LOG_V (INFO, TAG, "Response buffer: %d bytes is too small",
-                maxPayloadSize);
-        ehResult = OC_EH_ERROR;
-    }
-
-    free(putResp);
+    *payload = putResp;
+    ehResult = OC_EH_OK;
 
     return ehResult;
 }
 
 OCEntityHandlerResult ProcessPostRequest (OCEntityHandlerRequest *ehRequest,
-        OCEntityHandlerResponse *response, char *payload, uint16_t maxPayloadSize)
+        OCEntityHandlerResponse *response, OCRepPayload** payload)
 {
     OCEntityHandlerResult ehResult = OC_EH_OK;
-    char *respPLPost_light = NULL;
-    cJSON *json;
-    cJSON *format;
+    OCRepPayload *respPLPost_light = nullptr;
 
     /*
      * The entity handler determines how to process a POST request.
@@ -285,30 +268,26 @@ OCEntityHandlerResult ProcessPostRequest (OCEntityHandlerRequest *ehRequest,
             char newLightUri[URI_MAXSIZE];
             snprintf(newLightUri, URI_MAXSIZE, "/a/light/%d", gCurrLightInstance);
 
-            json = cJSON_CreateObject();
-            cJSON_AddStringToObject(json,"href",gResourceUri);
-            cJSON_AddItemToObject(json, "rep", format=cJSON_CreateObject());
-            cJSON_AddStringToObject(format, "createduri", (char *) newLightUri);
+            respPLPost_light = OCRepPayloadCreate();
+            OCRepPayloadSetUri(respPLPost_light, gResourceUri);
+            OCRepPayloadSetPropString(respPLPost_light, "createduri", newLightUri);
 
             if (0 == createLightResource (newLightUri, &gLightInstance[gCurrLightInstance]))
             {
-                OC_LOG (INFO, TAG, "Created new Light instance\n");
+                OIC_LOG (INFO, TAG, "Created new Light instance\n");
                 gLightInstance[gCurrLightInstance].state = 0;
                 gLightInstance[gCurrLightInstance].power = 0;
                 gCurrLightInstance++;
-                respPLPost_light = cJSON_Print(json);
                 strncpy ((char *)response->resourceUri, newLightUri, MAX_URI_LENGTH);
                 ehResult = OC_EH_RESOURCE_CREATED;
             }
-
-            cJSON_Delete(json);
         }
         else
         {
             // Update repesentation of /a/light
             Light.state = true;
             Light.power = 11;
-            respPLPost_light = constructJsonResponse(ehRequest);
+            respPLPost_light = constructResponse(ehRequest);
         }
     }
     else
@@ -321,43 +300,40 @@ OCEntityHandlerResult ProcessPostRequest (OCEntityHandlerRequest *ehRequest,
                 gLightInstance[i].power = 22;
                 if (i == 0)
                 {
-                    respPLPost_light = constructJsonResponse(ehRequest);
+                    respPLPost_light = constructResponse(ehRequest);
                     break;
                 }
                 else if (i == 1)
                 {
-                    respPLPost_light = constructJsonResponse(ehRequest);
+                    respPLPost_light = constructResponse(ehRequest);
                 }
             }
         }
     }
 
-    if ((respPLPost_light != NULL) && (maxPayloadSize > strlen ((char *)respPLPost_light)))
+    if ((respPLPost_light != NULL))
     {
-        strncpy(payload, respPLPost_light, strlen((char *)respPLPost_light));
+        *payload = respPLPost_light;
     }
     else
     {
-        OC_LOG_V (INFO, TAG, "Response buffer: %d bytes is too small",
-                maxPayloadSize);
+        OIC_LOG(INFO, TAG, "Payload was NULL");
         ehResult = OC_EH_ERROR;
     }
 
-    free(respPLPost_light);
     return ehResult;
 }
 
-OCEntityHandlerResult ProcessDeleteRequest (OCEntityHandlerRequest *ehRequest,
-        char *payload, uint16_t maxPayloadSize)
+OCEntityHandlerResult ProcessDeleteRequest (OCEntityHandlerRequest *ehRequest)
 {
     if(ehRequest == NULL)
     {
-        OC_LOG(INFO, TAG, "The ehRequest is NULL");
+        OIC_LOG(INFO, TAG, "The ehRequest is NULL");
         return OC_EH_ERROR;
     }
     OCEntityHandlerResult ehResult = OC_EH_OK;
 
-    OC_LOG_V(INFO, TAG, "\n\nExecuting %s for resource %d ", __func__, ehRequest->resource);
+    OIC_LOG_V(INFO, TAG, "\n\nExecuting %s for resource %p ", __func__, ehRequest->resource);
 
     /*
      * In the sample below, the application will:
@@ -368,8 +344,6 @@ OCEntityHandlerResult ProcessDeleteRequest (OCEntityHandlerRequest *ehRequest,
      * 2. optionally, app removes observers out of its array 'interestedObservers'
      */
 
-    const char* deleteResponse = NULL;
-
     if ((ehRequest != NULL) && (ehRequest->resource == Light.handle))
     {
         //Step 1: Ask stack to do the work.
@@ -377,9 +351,8 @@ OCEntityHandlerResult ProcessDeleteRequest (OCEntityHandlerRequest *ehRequest,
 
         if (result == OC_STACK_OK)
         {
-            OC_LOG (INFO, TAG, "\n\nDelete Resource operation succeeded.");
+            OIC_LOG (INFO, TAG, "\n\nDelete Resource operation succeeded.");
             ehResult = OC_EH_OK;
-            deleteResponse = responsePayloadDeleteOk;
 
             //Step 2: clear observers who wanted to observe this resource at the app level.
             for (uint8_t i = 0; i < SAMPLE_MAX_NUM_OBSERVATIONS; i++)
@@ -394,14 +367,12 @@ OCEntityHandlerResult ProcessDeleteRequest (OCEntityHandlerRequest *ehRequest,
         }
         else if (result == OC_STACK_NO_RESOURCE)
         {
-            OC_LOG(INFO, TAG, "\n\nThe resource doesn't exist or it might have been deleted.");
-            deleteResponse = responsePayloadResourceDoesNotExist;
+            OIC_LOG(INFO, TAG, "\n\nThe resource doesn't exist or it might have been deleted.");
             ehResult = OC_EH_RESOURCE_DELETED;
         }
         else
         {
-            OC_LOG(INFO, TAG, "\n\nEncountered error from OCDeleteResource().");
-            deleteResponse = responsePayloadDeleteNotOK;
+            OIC_LOG(INFO, TAG, "\n\nEncountered error from OCDeleteResource().");
             ehResult = OC_EH_ERROR;
         }
     }
@@ -409,51 +380,30 @@ OCEntityHandlerResult ProcessDeleteRequest (OCEntityHandlerRequest *ehRequest,
     {
         //Let's this app not supporting DELETE on some resources so
         //consider the DELETE request is received for a non-support resource.
-        OC_LOG_V(INFO, TAG, "\n\nThe request is received for a non-support resource.");
-        deleteResponse = responsePayloadDeleteResourceNotSupported;
+        OIC_LOG_V(INFO, TAG, "\n\nThe request is received for a non-support resource.");
         ehResult = OC_EH_FORBIDDEN;
     }
 
-    if (maxPayloadSize > strlen ((char *)deleteResponse))
-    {
-        strncpy(payload, deleteResponse, strlen((char *)deleteResponse));
-    }
-    else
-    {
-        OC_LOG_V (INFO, TAG, "Response buffer: %d bytes is too small",
-                maxPayloadSize);
-        ehResult = OC_EH_ERROR;
-    }
-
     return ehResult;
 }
 
-OCEntityHandlerResult ProcessNonExistingResourceRequest(OCEntityHandlerRequest *ehRequest,
-        char *payload, uint16_t maxPayloadSize)
+OCEntityHandlerResult ProcessNonExistingResourceRequest(OCEntityHandlerRequest * /*ehRequest*/)
 {
-    OC_LOG_V(INFO, TAG, "\n\nExecuting %s ", __func__);
-
-    const char* response = NULL;
-    response = responsePayloadResourceDoesNotExist;
-
-    if ( (ehRequest != NULL) &&
-         (maxPayloadSize > strlen ((char *)response)) )
-    {
-        strncpy((char *)payload, response, strlen((char *)response));
-    }
-    else
-    {
-        OC_LOG_V (ERROR, TAG, "Response buffer: %d bytes is too small",
-                maxPayloadSize);
-    }
+    OIC_LOG_V(INFO, TAG, "\n\nExecuting %s ", __func__);
 
     return OC_EH_RESOURCE_NOT_FOUND;
 }
 
 void ProcessObserveRegister (OCEntityHandlerRequest *ehRequest)
 {
-    OC_LOG_V (INFO, TAG, "Received observation registration request with observation Id %d",
+    OIC_LOG_V (INFO, TAG, "Received observation registration request with observation Id %d",
             ehRequest->obsInfo.obsId);
+
+    if (!observeThreadStarted)
+    {
+        pthread_create (&threadId_observe, NULL, ChangeLightRepresentation, (void *)NULL);
+        observeThreadStarted = 1;
+    }
     for (uint8_t i = 0; i < SAMPLE_MAX_NUM_OBSERVATIONS; i++)
     {
         if (interestedObservers[i].valid == false)
@@ -470,7 +420,7 @@ void ProcessObserveDeregister (OCEntityHandlerRequest *ehRequest)
 {
     bool clientStillObserving = false;
 
-    OC_LOG_V (INFO, TAG, "Received observation deregistration request for observation Id %d",
+    OIC_LOG_V (INFO, TAG, "Received observation deregistration request for observation Id %d",
             ehRequest->obsInfo.obsId);
     for (uint8_t i = 0; i < SAMPLE_MAX_NUM_OBSERVATIONS; i++)
     {
@@ -490,18 +440,19 @@ void ProcessObserveDeregister (OCEntityHandlerRequest *ehRequest)
 
 OCEntityHandlerResult
 OCDeviceEntityHandlerCb (OCEntityHandlerFlag flag,
-        OCEntityHandlerRequest *entityHandlerRequest, char* uri)
+                         OCEntityHandlerRequest *entityHandlerRequest,
+                         char* uri,
+                         void* /*callbackParam*/)
 {
-    OC_LOG_V (INFO, TAG, "Inside device default entity handler - flags: 0x%x, uri: %s", flag, uri);
+    OIC_LOG_V (INFO, TAG, "Inside device default entity handler - flags: 0x%x, uri: %s", flag, uri);
 
     OCEntityHandlerResult ehResult = OC_EH_OK;
     OCEntityHandlerResponse response;
-    char payload[MAX_RESPONSE_LENGTH] = {0};
 
     // Validate pointer
     if (!entityHandlerRequest)
     {
-        OC_LOG (ERROR, TAG, "Invalid request pointer");
+        OIC_LOG (ERROR, TAG, "Invalid request pointer");
         return OC_EH_ERROR;
     }
     // Initialize certain response fields
@@ -509,36 +460,36 @@ OCDeviceEntityHandlerCb (OCEntityHandlerFlag flag,
     memset(response.sendVendorSpecificHeaderOptions, 0,
             sizeof response.sendVendorSpecificHeaderOptions);
     memset(response.resourceUri, 0, sizeof response.resourceUri);
+    OCRepPayload* payload = nullptr;
 
 
     if (flag & OC_REQUEST_FLAG)
     {
-        OC_LOG (INFO, TAG, "Flag includes OC_REQUEST_FLAG");
+        OIC_LOG (INFO, TAG, "Flag includes OC_REQUEST_FLAG");
 
         if (entityHandlerRequest->resource == NULL)
         {
-            OC_LOG (INFO, TAG, "Received request from client to a non-existing resource");
-            ehResult = ProcessNonExistingResourceRequest(entityHandlerRequest,
-                           payload, sizeof(payload) - 1);
+            OIC_LOG (INFO, TAG, "Received request from client to a non-existing resource");
+            ehResult = ProcessNonExistingResourceRequest(entityHandlerRequest);
         }
         else if (OC_REST_GET == entityHandlerRequest->method)
         {
-            OC_LOG (INFO, TAG, "Received OC_REST_GET from client");
-            ehResult = ProcessGetRequest (entityHandlerRequest, payload, sizeof(payload) - 1);
+            OIC_LOG (INFO, TAG, "Received OC_REST_GET from client");
+            ehResult = ProcessGetRequest (entityHandlerRequest, &payload);
         }
         else if (OC_REST_PUT == entityHandlerRequest->method)
         {
-            OC_LOG (INFO, TAG, "Received OC_REST_PUT from client");
-            ehResult = ProcessPutRequest (entityHandlerRequest, payload, sizeof(payload) - 1);
+            OIC_LOG (INFO, TAG, "Received OC_REST_PUT from client");
+            ehResult = ProcessPutRequest (entityHandlerRequest, &payload);
         }
         else if (OC_REST_DELETE == entityHandlerRequest->method)
         {
-            OC_LOG (INFO, TAG, "Received OC_REST_DELETE from client");
-            ehResult = ProcessDeleteRequest (entityHandlerRequest, payload, sizeof(payload) - 1);
+            OIC_LOG (INFO, TAG, "Received OC_REST_DELETE from client");
+            ehResult = ProcessDeleteRequest (entityHandlerRequest);
         }
         else
         {
-            OC_LOG_V (INFO, TAG, "Received unsupported method %d from client",
+            OIC_LOG_V (INFO, TAG, "Received unsupported method %d from client",
                       entityHandlerRequest->method);
             ehResult = OC_EH_ERROR;
         }
@@ -549,38 +500,39 @@ OCDeviceEntityHandlerCb (OCEntityHandlerFlag flag,
             response.requestHandle = entityHandlerRequest->requestHandle;
             response.resourceHandle = entityHandlerRequest->resource;
             response.ehResult = ehResult;
-            response.payload = payload;
-            response.payloadSize = strlen(payload);
+            response.payload = reinterpret_cast<OCPayload*>(payload);
             // Indicate that response is NOT in a persistent buffer
             response.persistentBufferFlag = 0;
 
             // Send the response
             if (OCDoResponse(&response) != OC_STACK_OK)
             {
-                OC_LOG(ERROR, TAG, "Error sending response");
+                OIC_LOG(ERROR, TAG, "Error sending response");
                 ehResult = OC_EH_ERROR;
             }
         }
     }
     if (flag & OC_OBSERVE_FLAG)
     {
-        OC_LOG(INFO, TAG, "Flag includes OC_OBSERVE_FLAG");
+        OIC_LOG(INFO, TAG, "Flag includes OC_OBSERVE_FLAG");
         if (OC_OBSERVE_REGISTER == entityHandlerRequest->obsInfo.action)
         {
-            OC_LOG (INFO, TAG, "Received OC_OBSERVE_REGISTER from client");
+            OIC_LOG (INFO, TAG, "Received OC_OBSERVE_REGISTER from client");
         }
         else if (OC_OBSERVE_DEREGISTER == entityHandlerRequest->obsInfo.action)
         {
-            OC_LOG (INFO, TAG, "Received OC_OBSERVE_DEREGISTER from client");
+            OIC_LOG (INFO, TAG, "Received OC_OBSERVE_DEREGISTER from client");
         }
     }
 
+    OCPayloadDestroy(response.payload);
     return ehResult;
 }
 
 OCEntityHandlerResult
-OCNOPEntityHandlerCb (OCEntityHandlerFlag flag,
-        OCEntityHandlerRequest *entityHandlerRequest)
+OCNOPEntityHandlerCb (OCEntityHandlerFlag /*flag*/,
+                      OCEntityHandlerRequest * /*entityHandlerRequest*/,
+                      void* /*callbackParam*/)
 {
     // This is callback is associated with the 2 presence notification
     // resources. They are non-operational.
@@ -589,18 +541,17 @@ OCNOPEntityHandlerCb (OCEntityHandlerFlag flag,
 
 OCEntityHandlerResult
 OCEntityHandlerCb (OCEntityHandlerFlag flag,
-        OCEntityHandlerRequest *entityHandlerRequest)
+        OCEntityHandlerRequest *entityHandlerRequest, void* /*callback*/)
 {
-    OC_LOG_V (INFO, TAG, "Inside entity handler - flags: 0x%x", flag);
+    OIC_LOG_V (INFO, TAG, "Inside entity handler - flags: 0x%x", flag);
 
     OCEntityHandlerResult ehResult = OC_EH_OK;
-    OCEntityHandlerResponse response;
-    char payload[MAX_RESPONSE_LENGTH] = {0};
+    OCEntityHandlerResponse response = { 0, 0, OC_EH_ERROR, 0, 0, { },{ 0 }, false };
 
     // Validate pointer
     if (!entityHandlerRequest)
     {
-        OC_LOG (ERROR, TAG, "Invalid request pointer");
+        OIC_LOG (ERROR, TAG, "Invalid request pointer");
         return OC_EH_ERROR;
     }
 
@@ -609,34 +560,35 @@ OCEntityHandlerCb (OCEntityHandlerFlag flag,
     memset(response.sendVendorSpecificHeaderOptions,
             0, sizeof response.sendVendorSpecificHeaderOptions);
     memset(response.resourceUri, 0, sizeof response.resourceUri);
+    OCRepPayload* payload = nullptr;
 
     if (flag & OC_REQUEST_FLAG)
     {
-        OC_LOG (INFO, TAG, "Flag includes OC_REQUEST_FLAG");
+        OIC_LOG (INFO, TAG, "Flag includes OC_REQUEST_FLAG");
 
         if (OC_REST_GET == entityHandlerRequest->method)
         {
-            OC_LOG (INFO, TAG, "Received OC_REST_GET from client");
-            ehResult = ProcessGetRequest (entityHandlerRequest, payload, sizeof(payload) - 1);
+            OIC_LOG (INFO, TAG, "Received OC_REST_GET from client");
+            ehResult = ProcessGetRequest (entityHandlerRequest, &payload);
         }
         else if (OC_REST_PUT == entityHandlerRequest->method)
         {
-            OC_LOG (INFO, TAG, "Received OC_REST_PUT from client");
-            ehResult = ProcessPutRequest (entityHandlerRequest, payload, sizeof(payload) - 1);
+            OIC_LOG (INFO, TAG, "Received OC_REST_PUT from client");
+            ehResult = ProcessPutRequest (entityHandlerRequest, &payload);
         }
         else if (OC_REST_POST == entityHandlerRequest->method)
         {
-            OC_LOG (INFO, TAG, "Received OC_REST_POST from client");
-            ehResult = ProcessPostRequest (entityHandlerRequest, &response, payload, sizeof(payload) - 1);
+            OIC_LOG (INFO, TAG, "Received OC_REST_POST from client");
+            ehResult = ProcessPostRequest (entityHandlerRequest, &response, &payload);
         }
         else if (OC_REST_DELETE == entityHandlerRequest->method)
         {
-            OC_LOG (INFO, TAG, "Received OC_REST_DELETE from client");
-            ehResult = ProcessDeleteRequest (entityHandlerRequest, payload, sizeof(payload) - 1);
+            OIC_LOG (INFO, TAG, "Received OC_REST_DELETE from client");
+            ehResult = ProcessDeleteRequest (entityHandlerRequest);
         }
         else
         {
-            OC_LOG_V (INFO, TAG, "Received unsupported method %d from client",
+            OIC_LOG_V (INFO, TAG, "Received unsupported method %d from client",
                       entityHandlerRequest->method);
             ehResult = OC_EH_ERROR;
         }
@@ -647,8 +599,7 @@ OCEntityHandlerCb (OCEntityHandlerFlag flag,
             response.requestHandle = entityHandlerRequest->requestHandle;
             response.resourceHandle = entityHandlerRequest->resource;
             response.ehResult = ehResult;
-            response.payload = payload;
-            response.payloadSize = strlen(payload);
+            response.payload = reinterpret_cast<OCPayload*>(payload);
             // Indicate that response is NOT in a persistent buffer
             response.persistentBufferFlag = 0;
 
@@ -656,7 +607,7 @@ OCEntityHandlerCb (OCEntityHandlerFlag flag,
             if(entityHandlerRequest->rcvdVendorSpecificHeaderOptions &&
                     entityHandlerRequest->numRcvdVendorSpecificHeaderOptions)
             {
-                OC_LOG (INFO, TAG, "Received vendor specific options");
+                OIC_LOG (INFO, TAG, "Received vendor specific options");
                 uint8_t i = 0;
                 OCHeaderOption * rcvdOptions =
                         entityHandlerRequest->rcvdVendorSpecificHeaderOptions;
@@ -664,51 +615,83 @@ OCEntityHandlerCb (OCEntityHandlerFlag flag,
                 {
                     if(((OCHeaderOption)rcvdOptions[i]).protocolID == OC_COAP_ID)
                     {
-                        OC_LOG_V(INFO, TAG, "Received option with OC_COAP_ID and ID %u with",
+                        OIC_LOG_V(INFO, TAG, "Received option with OC_COAP_ID and ID %u with",
                                 ((OCHeaderOption)rcvdOptions[i]).optionID );
 
-                        OC_LOG_BUFFER(INFO, TAG, ((OCHeaderOption)rcvdOptions[i]).optionData,
+                        OIC_LOG_BUFFER(INFO, TAG, ((OCHeaderOption)rcvdOptions[i]).optionData,
                             MAX_HEADER_OPTION_DATA_LENGTH);
                     }
                 }
-                OCHeaderOption * sendOptions = response.sendVendorSpecificHeaderOptions;
-                uint8_t option2[] = {21,22,23,24,25,26,27,28,29,30};
-                uint8_t option3[] = {31,32,33,34,35,36,37,38,39,40};
-                sendOptions[0].protocolID = OC_COAP_ID;
-                sendOptions[0].optionID = 2248;
-                memcpy(sendOptions[0].optionData, option2, sizeof(option2));
-                sendOptions[0].optionLength = 10;
-                sendOptions[1].protocolID = OC_COAP_ID;
-                sendOptions[1].optionID = 2600;
-                memcpy(sendOptions[1].optionData, option3, sizeof(option3));
-                sendOptions[1].optionLength = 10;
+
+                OCHeaderOption* sendOptions = response.sendVendorSpecificHeaderOptions;
+                size_t numOptions = response.numSendVendorSpecificHeaderOptions;
+                // Check if the option header has already existed before adding it in.
+                uint8_t optionData[MAX_HEADER_OPTION_DATA_LENGTH];
+                size_t optionDataSize = sizeof(optionData);
+                uint16_t actualDataSize = 0;
+                OCGetHeaderOption(response.sendVendorSpecificHeaderOptions,
+                                  response.numSendVendorSpecificHeaderOptions,
+                                  2248,
+                                  optionData,
+                                  optionDataSize,
+                                  &actualDataSize);
+                if (actualDataSize == 0)
+                {
+                    uint8_t option2[] = {21,22,23,24,25,26,27,28,29,30};
+                    uint16_t optionID2 = 2248;
+                    size_t optionDataSize2 = sizeof(option2);
+                    OCSetHeaderOption(sendOptions,
+                                      &numOptions,
+                                      optionID2,
+                                      option2,
+                                      optionDataSize2);
+                }
+
+                OCGetHeaderOption(response.sendVendorSpecificHeaderOptions,
+                                  response.numSendVendorSpecificHeaderOptions,
+                                  2600,
+                                  optionData,
+                                  optionDataSize,
+                                  &actualDataSize);
+                if (actualDataSize == 0)
+                {
+                    uint8_t option3[] = {31,32,33,34,35,36,37,38,39,40};
+                    uint16_t optionID3 = 2600;
+                    size_t optionDataSize3 = sizeof(option3);
+                    OCSetHeaderOption(sendOptions,
+                                      &numOptions,
+                                      optionID3,
+                                      option3,
+                                      optionDataSize3);
+                }
                 response.numSendVendorSpecificHeaderOptions = 2;
             }
 
             // Send the response
             if (OCDoResponse(&response) != OC_STACK_OK)
             {
-                OC_LOG(ERROR, TAG, "Error sending response");
+                OIC_LOG(ERROR, TAG, "Error sending response");
                 ehResult = OC_EH_ERROR;
             }
         }
     }
     if (flag & OC_OBSERVE_FLAG)
     {
-        OC_LOG(INFO, TAG, "Flag includes OC_OBSERVE_FLAG");
+        OIC_LOG(INFO, TAG, "Flag includes OC_OBSERVE_FLAG");
 
         if (OC_OBSERVE_REGISTER == entityHandlerRequest->obsInfo.action)
         {
-            OC_LOG (INFO, TAG, "Received OC_OBSERVE_REGISTER from client");
+            OIC_LOG (INFO, TAG, "Received OC_OBSERVE_REGISTER from client");
             ProcessObserveRegister (entityHandlerRequest);
         }
         else if (OC_OBSERVE_DEREGISTER == entityHandlerRequest->obsInfo.action)
         {
-            OC_LOG (INFO, TAG, "Received OC_OBSERVE_DEREGISTER from client");
+            OIC_LOG (INFO, TAG, "Received OC_OBSERVE_DEREGISTER from client");
             ProcessObserveDeregister (entityHandlerRequest);
         }
     }
 
+    OCPayloadDestroy(response.payload);
     return ehResult;
 }
 
@@ -718,6 +701,10 @@ void handleSigInt(int signum)
     if (signum == SIGINT)
     {
         gQuitFlag = 1;
+#ifdef WITH_PROCESS_EVENT
+        if (processEvent)
+            oc_event_signal(processEvent);
+#endif
     }
 }
 
@@ -727,8 +714,7 @@ void *ChangeLightRepresentation (void *param)
     OCStackResult result = OC_STACK_ERROR;
 
     uint8_t j = 0;
-    uint8_t numNotifies = (SAMPLE_MAX_NUM_OBSERVATIONS)/2;
-    OCObservationId obsNotify[numNotifies];
+    OCObservationId obsNotify[(SAMPLE_MAX_NUM_OBSERVATIONS)/2];
 
     while (!gQuitFlag)
     {
@@ -736,7 +722,7 @@ void *ChangeLightRepresentation (void *param)
         Light.power += 5;
         if (gLightUnderObservation)
         {
-            OC_LOG_V(INFO, TAG, " =====> Notifying stack of new power level %d\n", Light.power);
+            OIC_LOG_V(INFO, TAG, " =====> Notifying stack of new power level %d\n", Light.power);
             if (gObserveNotifyType == 1)
             {
                 // Notify list of observers. Alternate observers on the list will be notified.
@@ -750,18 +736,10 @@ void *ChangeLightRepresentation (void *param)
                     }
                 }
 
-                cJSON *json = cJSON_CreateObject();
-                cJSON *format;
-                cJSON_AddStringToObject(json,"href",gResourceUri);
-                cJSON_AddItemToObject(json, "rep", format=cJSON_CreateObject());
-                cJSON_AddBoolToObject(format, "state", Light.state);
-                cJSON_AddNumberToObject(format, "power", Light.power);
-
-                char * obsResp = cJSON_Print(json);
-                cJSON_Delete(json);
+                OCRepPayload* payload = getPayload(gResourceUri, Light.power, Light.state);
                 result = OCNotifyListOfObservers (Light.handle, obsNotify, j,
-                        obsResp, OC_NA_QOS);
-                free(obsResp);
+                        payload, OC_NA_QOS);
+                OCRepPayloadDestroy(payload);
             }
             else if (gObserveNotifyType == 0)
             {
@@ -769,27 +747,16 @@ void *ChangeLightRepresentation (void *param)
                 result = OCNotifyAllObservers (Light.handle, OC_NA_QOS);
                 if (OC_STACK_NO_OBSERVERS == result)
                 {
-                    OC_LOG (INFO, TAG,
+                    OIC_LOG (INFO, TAG,
                             "=======> No more observers exist, stop sending observations");
                     gLightUnderObservation = 0;
                 }
             }
             else
             {
-                OC_LOG (ERROR, TAG, "Incorrect notification type selected");
+                OIC_LOG (ERROR, TAG, "Incorrect notification type selected");
             }
         }
-#ifdef WITH_PRESENCE
-        if(stopPresenceCount > 0)
-        {
-            OC_LOG_V(INFO, TAG, "================  Counting down to stop presence %d", stopPresenceCount);
-        }
-        if(!stopPresenceCount--)
-        {
-            OC_LOG(INFO, TAG, "================ stopping presence");
-            OCStopPresence();
-        }
-#endif
     }
     return NULL;
 }
@@ -797,7 +764,9 @@ void *ChangeLightRepresentation (void *param)
 #ifdef WITH_PRESENCE
 void *presenceNotificationGenerator(void *param)
 {
-    sleep(10);
+    uint8_t secondsBeforePresence = 10;
+    OIC_LOG_V(INFO, TAG, "Will send out presence in %u seconds", secondsBeforePresence);
+    sleep(secondsBeforePresence);
     (void)param;
     OCDoHandle presenceNotificationHandles[numPresenceResources];
     OCStackResult res = OC_STACK_OK;
@@ -819,16 +788,17 @@ void *presenceNotificationGenerator(void *param)
                     OC_RSRVD_INTERFACE_DEFAULT,
                     presenceNotificationUris.at(i).c_str(),
                     OCNOPEntityHandlerCb,
+                    NULL,
                     OC_DISCOVERABLE|OC_OBSERVABLE);
         }
         if(res != OC_STACK_OK)
         {
-            OC_LOG_V(ERROR, TAG, "\"Presence Notification Generator\" failed to create resource "
+            OIC_LOG_V(ERROR, TAG, "\"Presence Notification Generator\" failed to create resource "
                     "%s with result %s.", presenceNotificationResources.at(i).c_str(),
                     getResult(res));
             break;
         }
-        OC_LOG_V(INFO, TAG, PCF("Created %s for presence notification"),
+        OIC_LOG_V(INFO, TAG, PCF("Created %s for presence notification"),
                                 presenceNotificationUris[i].c_str());
     }
     sleep(5);
@@ -840,13 +810,17 @@ void *presenceNotificationGenerator(void *param)
         }
         if(res != OC_STACK_OK)
         {
-            OC_LOG_V(ERROR, TAG, "\"Presence Notification Generator\" failed to delete "\
+            OIC_LOG_V(ERROR, TAG, "\"Presence Notification Generator\" failed to delete "\
                     "resource %s.", presenceNotificationResources.at(i).c_str());
             break;
         }
-        OC_LOG_V(INFO, TAG, PCF("Deleted %s for presence notification"),
+        OIC_LOG_V(INFO, TAG, PCF("Deleted %s for presence notification"),
                                 presenceNotificationUris[i].c_str());
     }
+
+    OIC_LOG(INFO, TAG, "================ stopping presence");
+    OCStopPresence();
+
     return NULL;
 }
 #endif
@@ -855,7 +829,7 @@ int createLightResource (char *uri, LightResource *lightResource)
 {
     if (!uri)
     {
-        OC_LOG(ERROR, TAG, "Resource URI cannot be NULL");
+        OIC_LOG(ERROR, TAG, "Resource URI cannot be NULL");
         return -1;
     }
 
@@ -866,8 +840,9 @@ int createLightResource (char *uri, LightResource *lightResource)
             "oc.mi.def",
             uri,
             OCEntityHandlerCb,
+            NULL,
             OC_DISCOVERABLE|OC_OBSERVABLE);
-    OC_LOG_V(INFO, TAG, "Created Light resource with result: %s", getResult(res));
+    OIC_LOG_V(INFO, TAG, "Created Light resource with result: %s", getResult(res));
 
     return 0;
 }
@@ -890,6 +865,8 @@ void DeletePlatformInfo()
 void DeleteDeviceInfo()
 {
     free (deviceInfo.deviceName);
+    free (deviceInfo.specVersion);
+    OCFreeOCStringLL (deviceInfo.dataModelVersions);
 }
 
 bool DuplicateString(char** targetString, const char* sourceString)
@@ -919,12 +896,12 @@ OCStackResult SetPlatformInfo(const char* platformID, const char *manufacturerNa
 
     bool success = true;
 
-    if(manufacturerName != NULL && (strlen(manufacturerName) > MAX_MANUFACTURER_NAME_LENGTH))
+    if(manufacturerName != NULL && (strlen(manufacturerName) > MAX_PLATFORM_NAME_LENGTH))
     {
         return OC_STACK_INVALID_PARAM;
     }
 
-    if(manufacturerUrl != NULL && (strlen(manufacturerUrl) > MAX_MANUFACTURER_URL_LENGTH))
+    if(manufacturerUrl != NULL && (strlen(manufacturerUrl) > MAX_PLATFORM_URL_LENGTH))
     {
         return OC_STACK_INVALID_PARAM;
     }
@@ -993,35 +970,90 @@ OCStackResult SetPlatformInfo(const char* platformID, const char *manufacturerNa
     return OC_STACK_ERROR;
 }
 
-OCStackResult SetDeviceInfo(const char* deviceName)
+OCStackResult SetDeviceInfo(const char* deviceName, const char* specVersion, const char* dataModelVersions)
 {
     if(!DuplicateString(&deviceInfo.deviceName, deviceName))
     {
         return OC_STACK_ERROR;
     }
+    if(!DuplicateString(&deviceInfo.specVersion, specVersion))
+    {
+        return OC_STACK_ERROR;
+    }
+    OCFreeOCStringLL(deviceInfo.dataModelVersions);
+    deviceInfo.dataModelVersions = OCCreateOCStringLL(dataModelVersions);
+    if (!deviceInfo.dataModelVersions)
+    {
+        return OC_STACK_ERROR;
+    }
     return OC_STACK_OK;
 }
 
 static void PrintUsage()
 {
-    OC_LOG(INFO, TAG, "Usage : ocserver -o <0|1>");
-    OC_LOG(INFO, TAG, "-o 0 : Notify all observers");
-    OC_LOG(INFO, TAG, "-o 1 : Notify list of observers");
+    OIC_LOG(INFO, TAG, "Usage : ocserver -o <0|1>");
+    OIC_LOG(INFO, TAG, "-o 0 : Notify all observers");
+    OIC_LOG(INFO, TAG, "-o 1 : Notify list of observers");
 }
 
+#ifdef RA_ADAPTER
+static void jidbound(char *jid)
+{
+    OIC_LOG_V(INFO, TAG, "\n\n    Bound JID: %s\n\n", jid);
+}
+#endif
+
 int main(int argc, char* argv[])
 {
-    pthread_t threadId;
-    pthread_t threadId_presence;
-    int opt;
 
-    while ((opt = getopt(argc, argv, "o:")) != -1)
+#ifdef RA_ADAPTER
+    char host[] = "localhost";
+    char user[] = "test1";
+    char pass[] = "intel123";
+    char empstr[] = "";
+    OCRAInfo_t rainfo = {};
+
+    rainfo.hostname = host;
+    rainfo.port = 5222;
+    rainfo.xmpp_domain = host;
+    rainfo.username = user;
+    rainfo.password = pass;
+    rainfo.resource = empstr;
+    rainfo.user_jid = empstr;
+    rainfo.jidbound = jidbound;
+#endif
+
+    int opt = 0;
+    while ((opt = getopt(argc, argv, "o:s:p:d:u:w:r:j:")) != -1)
     {
         switch(opt)
         {
             case 'o':
                 gObserveNotifyType = atoi(optarg);
                 break;
+#ifdef RA_ADAPTER
+            case 's':
+                rainfo.hostname = optarg;
+                break;
+            case 'p':
+                rainfo.port = atoi(optarg);
+                break;
+            case 'd':
+                rainfo.xmpp_domain = optarg;
+                break;
+            case 'u':
+                rainfo.username = optarg;
+                break;
+            case 'w':
+                rainfo.password = optarg;
+                break;
+            case 'j':
+                rainfo.user_jid = optarg;
+                break;
+            case 'r':
+                rainfo.resource = optarg;
+                break;
+#endif
             default:
                 PrintUsage();
                 return -1;
@@ -1034,31 +1066,35 @@ int main(int argc, char* argv[])
         return -1;
     }
 
-    OC_LOG(DEBUG, TAG, "OCServer is starting...");
+#ifdef RA_ADAPTER
+    OCSetRAInfo(&rainfo);
+#endif
+
+    OIC_LOG(DEBUG, TAG, "OCServer is starting...");
 
     if (OCInit(NULL, 0, OC_SERVER) != OC_STACK_OK)
     {
-        OC_LOG(ERROR, TAG, "OCStack init error");
+        OIC_LOG(ERROR, TAG, "OCStack init error");
         return 0;
     }
 #ifdef WITH_PRESENCE
     if (OCStartPresence(0) != OC_STACK_OK)
     {
-        OC_LOG(ERROR, TAG, "OCStack presence/discovery error");
+        OIC_LOG(ERROR, TAG, "OCStack presence/discovery error");
         return 0;
     }
 #endif
 
-    OCSetDefaultDeviceEntityHandler(OCDeviceEntityHandlerCb);
+    OCSetDefaultDeviceEntityHandler(OCDeviceEntityHandlerCb, NULL);
 
     OCStackResult registrationResult =
-        SetPlatformInfo(platformID, manufacturerName, manufacturerUrl, modelNumber,
+        SetPlatformInfo(platformID, manufacturerName, manufacturerLink, modelNumber,
             dateOfManufacture, platformVersion,  operatingSystemVersion,  hardwareVersion,
-            firmwareVersion,  supportUrl, systemTime);
+            firmwareVersion,  supportLink, systemTime);
 
     if (registrationResult != OC_STACK_OK)
     {
-        OC_LOG(INFO, TAG, "Platform info setting failed locally!");
+        OIC_LOG(INFO, TAG, "Platform info setting failed locally!");
         exit (EXIT_FAILURE);
     }
 
@@ -1066,26 +1102,38 @@ int main(int argc, char* argv[])
 
     if (registrationResult != OC_STACK_OK)
     {
-        OC_LOG(INFO, TAG, "Platform Registration failed!");
+        OIC_LOG(INFO, TAG, "Platform Registration failed!");
         exit (EXIT_FAILURE);
     }
 
-    registrationResult = SetDeviceInfo(deviceName);
+    registrationResult = SetDeviceInfo(deviceName, specVersion, dataModelVersions);
 
     if (registrationResult != OC_STACK_OK)
     {
-        OC_LOG(INFO, TAG, "Device info setting failed locally!");
+        OIC_LOG(INFO, TAG, "Device info setting failed locally!");
         exit (EXIT_FAILURE);
     }
 
+    OCResourcePayloadAddStringLL(&deviceInfo.types, "oic.d.tv");
+
     registrationResult = OCSetDeviceInfo(deviceInfo);
 
     if (registrationResult != OC_STACK_OK)
     {
-        OC_LOG(INFO, TAG, "Device Registration failed!");
+        OIC_LOG(INFO, TAG, "Device Registration failed!");
+        exit (EXIT_FAILURE);
+    }
+#ifdef WITH_PROCESS_EVENT
+    processEvent = oc_event_new();
+    if (!processEvent)
+    {
+        OIC_LOG(INFO, TAG, "oc_event_new failed!");
         exit (EXIT_FAILURE);
     }
 
+    OCRegisterProcessEvent(processEvent);
+#endif
+
     /*
      * Declare and create the example resource: Light
      */
@@ -1097,10 +1145,6 @@ int main(int argc, char* argv[])
         interestedObservers[i].valid = false;
     }
 
-    /*
-     * Create a thread for changing the representation of the Light
-     */
-    pthread_create (&threadId, NULL, ChangeLightRepresentation, (void *)NULL);
 
     /*
      * Create a thread for generating changes that cause presence notifications
@@ -1112,7 +1156,7 @@ int main(int argc, char* argv[])
     #endif
 
     // Break from loop with Ctrl-C
-    OC_LOG(INFO, TAG, "Entering ocserver main loop...");
+    OIC_LOG(INFO, TAG, "Entering ocserver main loop...");
 
     DeletePlatformInfo();
     DeleteDeviceInfo();
@@ -1121,28 +1165,49 @@ int main(int argc, char* argv[])
 
     while (!gQuitFlag)
     {
+#ifdef WITH_PROCESS_EVENT
+        uint32_t nextEventTime;
+        if (OCProcessEvent(&nextEventTime) != OC_STACK_OK)
+        {
+            OIC_LOG(ERROR, TAG, "OCStack process error");
+            break;
+        }
+        oc_event_wait_for(processEvent, nextEventTime);
+#else
         if (OCProcess() != OC_STACK_OK)
         {
-            OC_LOG(ERROR, TAG, "OCStack process error");
+            OIC_LOG(ERROR, TAG, "OCStack process error");
             return 0;
         }
+#endif
+    }
 
-        sleep(2);
+    if (observeThreadStarted)
+    {
+#ifdef HAVE_PTHREAD_H
+        pthread_cancel(threadId_observe);
+        pthread_join(threadId_observe, NULL);
+#endif
     }
 
-    /*
-     * Cancel the Light thread and wait for it to terminate
-     */
-    pthread_cancel(threadId);
-    pthread_join(threadId, NULL);
+#ifdef HAVE_PTHREAD_H
     pthread_cancel(threadId_presence);
     pthread_join(threadId_presence, NULL);
+#endif
+
+    OIC_LOG(INFO, TAG, "Exiting ocserver main loop...");
 
-    OC_LOG(INFO, TAG, "Exiting ocserver main loop...");
+#ifdef WITH_PROCESS_EVENT
+    if (processEvent)
+    {
+        oc_event_free(processEvent);
+        processEvent = NULL;
+    }
+#endif
 
     if (OCStop() != OC_STACK_OK)
     {
-        OC_LOG(ERROR, TAG, "OCStack process error");
+        OIC_LOG(ERROR, TAG, "OCStack process error");
     }
 
     return 0;