1 //******************************************************************
3 // Copyright 2014 Intel Mobile Communications GmbH All Rights Reserved.
5 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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
11 // http://www.apache.org/licenses/LICENSE-2.0
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.
19 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
25 #include "ocstackconfig.h"
31 //-----------------------------------------------------------------------------
33 //-----------------------------------------------------------------------------
35 //TODO: May want to refactor this in upcoming sprints.
36 //Don't want to expose to application layer that lower level stack is using CoAP.
37 #define OC_WELL_KNOWN_QUERY "coap://224.0.1.187:5683/oc/core"
38 #define OC_EXPLICIT_DEVICE_DISCOVERY_URI "coap://224.0.1.187:5683/oc/core?rt=core.led"
39 #define OC_MULTICAST_PREFIX "coap://224.0.1.187:5683"
40 #define OC_MULTICAST_IP "coap://224.0.1.187"
42 #define USE_RANDOM_PORT (0)
44 #define OC_DEFAULT_PRESENCE_TTL (60)
45 #define OC_PRESENCE_URI "/oc/presence"
46 extern uint8_t PresenceTimeOutSize; // length of PresenceTimeOut - 1
47 extern uint32_t PresenceTimeOut[];
49 //-----------------------------------------------------------------------------
51 //-----------------------------------------------------------------------------
54 * OC Virtual resources supported by every OC device
57 OC_WELL_KNOWN_URI= 0, // "/oc/core"
58 OC_DEVICE_URI, // "/oc/core/d"
59 OC_RESOURCE_TYPES_URI, // "/oc/core/d/type"
61 OC_PRESENCE, // "/oc/presence"
63 OC_MAX_VIRTUAL_RESOURCES // Max items in the list
67 * Standard RESTful HTTP Methods
71 OC_REST_GET = (1 << 0), // Read
72 OC_REST_PUT = (1 << 1), // Write
73 OC_REST_POST = (1 << 2), // Update
74 OC_REST_DELETE = (1 << 3), // Delete
75 // Register observe request for most up date notifications ONLY.
76 OC_REST_OBSERVE = (1 << 4),
77 // Register observe request for all notifications, including stale notifications.
78 OC_REST_OBSERVE_ALL = (1 << 5),
79 // Deregister observation, intended for internal use
80 OC_REST_CANCEL_OBSERVE = (1 << 6),
82 // Subscribe for all presence notifications of a particular resource.
83 OC_REST_PRESENCE = (1 << 7)
88 * Host Mode of Operation
96 extern OCMode myStackMode;
104 OC_NA_QOS // No Quality is defined, let the stack decide
105 } OCQualityOfService;
108 * Resource Properties
110 * OC_ACTIVE - When this bit is set, the resource is initialized, otherwise the resource
111 * is 'inactive'. 'inactive' signifies that the resource has been marked for
112 * deletion or is already deleted.
113 * OC_DISCOVERABLE - When this bit is set, the resource is allowed to be discovered by clients.
114 * OC_OBSERVABLE - When this bit is set, the resource is allowed to be observed by clients.
115 * OC_SLOW - When this bit is set, the resource has been marked as 'slow'. 'slow' signifies
116 * that responses from this resource can expect delays in processing its
117 * requests from clients.
118 * OC_SECURE - When this bit is set, the resource is a secure resource.
121 OC_ACTIVE = (1 << 0),
122 OC_DISCOVERABLE = (1 << 1),
123 OC_OBSERVABLE = (1 << 2),
126 } OCResourceProperty;
129 * Transport Protocol IDs
132 OC_INVALID_ID = (1 << 0),
133 OC_COAP_ID = (1 << 1)
134 } OCTransportProtocolID;
137 * Declares Stack Results & Errors
140 /* Success status code - START HERE */
142 OC_STACK_RESOURCE_CREATED,
143 OC_STACK_RESOURCE_DELETED,
145 /* Success status code - END HERE */
146 /* Error status code - START HERE */
147 OC_STACK_INVALID_URI,
148 OC_STACK_INVALID_QUERY,
150 OC_STACK_INVALID_PORT,
151 OC_STACK_INVALID_CALLBACK,
152 OC_STACK_INVALID_METHOD,
153 OC_STACK_INVALID_PARAM,
154 OC_STACK_INVALID_OBSERVE_PARAM,
158 OC_STACK_NO_RESOURCE, /* resource not found */
159 OC_STACK_RESOURCE_ERROR, /* ex: not supported method or interface */
160 OC_STACK_SLOW_RESOURCE,
161 OC_STACK_NO_OBSERVERS, /* resource has no registered observers */
162 OC_STACK_OBSERVER_NOT_FOUND,
164 OC_STACK_PRESENCE_STOPPED,
165 OC_STACK_PRESENCE_TIMEOUT,
166 OC_STACK_PRESENCE_DO_NOT_HANDLE,
168 OC_STACK_VIRTUAL_DO_NOT_HANDLE,
169 OC_STACK_INVALID_OPTION,
170 OC_STACK_MALFORMED_RESPONSE, /* the remote reply contained malformed data */
171 OC_STACK_PERSISTENT_BUFFER_REQUIRED,
172 OC_STACK_INVALID_REQUEST_HANDLE,
174 /* Error status code - END HERE */
178 * Handle to an @ref OCDoResource invocation.
180 typedef void * OCDoHandle;
183 * Handle to an OCResource object owned by the OCStack.
185 typedef void * OCResourceHandle;
187 typedef void * OCRequestHandle;
188 typedef void * OCResponseHandle;
191 * Unique identifier for each observation request. Used when observations are
192 * registered or deregistering. Used by entity handler to signal specific
193 * observers to be notified of resource changes.
194 * There can be maximum of 256 observations per server.
196 typedef uint8_t OCObservationId;
199 * Action associated with observation
202 OC_OBSERVE_REGISTER = 0,
203 OC_OBSERVE_DEREGISTER = 1,
204 OC_OBSERVE_NO_OPTION = 2
208 // Action associated with observation request
209 OCObserveAction action;
210 // Identifier for observation being registered/deregistered
211 OCObservationId obsId;
215 * Possible returned values from entity handler
220 OC_EH_RESOURCE_CREATED,
221 OC_EH_RESOURCE_DELETED,
224 } OCEntityHandlerResult;
226 // following structure will be used to define the vendor specific header options to be included
227 // in communication packets
229 typedef struct OCHeaderOption {
230 // The protocol ID this option applies to
231 OCTransportProtocolID protocolID;
232 // The header option ID which will be added to communication packets
235 uint16_t optionLength;
236 // pointer to its data
237 uint8_t optionData[MAX_HEADER_OPTION_DATA_LENGTH];
241 * Incoming requests handled by the server. Requests are passed in as a parameter to the @ref OCEntityHandler callback API.
242 * @brief The @ref OCEntityHandler callback API must be implemented in the application in order to receive these requests.
245 // Associated resource
246 OCResourceHandle resource;
247 OCRequestHandle requestHandle;
248 // the REST method retrieved from received request PDU
250 // resource query send by client
251 unsigned char * query;
252 // Information associated with observation - valid only when OCEntityHandler
253 // flag includes OC_OBSERVE_FLAG
254 OCObservationInfo obsInfo;
255 // An array of the received vendor specific header options
256 uint8_t numRcvdVendorSpecificHeaderOptions;
257 OCHeaderOption * rcvdVendorSpecificHeaderOptions;
258 // reqJSON is retrieved from the payload of the received request PDU
259 unsigned char * reqJSONPayload;
260 }OCEntityHandlerRequest;
263 * Response from queries to remote servers. Queries are made by calling the @ref OCDoResource API.
266 // Address of remote server
268 // the is the result of our stack, OCStackResult should contain coap/other error codes;
269 OCStackResult result;
270 // If associated with observe, this will represent the sequence of notifications from server.
271 uint32_t sequenceNumber;
272 // resJSONPayload is retrieved from the payload of the received request PDU
273 unsigned const char * resJSONPayload;
274 // An array of the received vendor specific header options
275 uint8_t numRcvdVendorSpecificHeaderOptions;
276 OCHeaderOption rcvdVendorSpecificHeaderOptions[MAX_HEADER_OPTIONS];
281 // Request handle is passed to server via the entity handler for each incoming request.
282 // Stack assigns when request is received, server sets to indicate what request response is for
283 OCRequestHandle requestHandle;
284 // New handle for tracking block (or slow) response. Stack assigns, server uses for subsequent calls
285 OCResponseHandle *responseHandle;
287 OCResourceHandle resourceHandle;
288 // Allow the entity handler to pass a result with the response
289 OCEntityHandlerResult ehResult;
290 // this is the pointer to server payload data to be transferred
291 unsigned char *payload;
292 // size of server payload data. I don't think we should rely on null terminated data for size
293 uint16_t payloadSize;
294 // An array of the vendor specific header options the entity handler wishes to use in response
295 uint8_t numSendVendorSpecificHeaderOptions;
296 OCHeaderOption sendVendorSpecificHeaderOptions[MAX_HEADER_OPTIONS];
297 // URI of new resource that entity handler might create
298 unsigned char resourceUri[MAX_URI_LENGTH];
299 // Server sets to true for persistent response buffer, false for non-persistent response buffer
300 uint8_t persistentBufferFlag;
301 } OCEntityHandlerResponse;
304 OC_INIT_FLAG = (1 << 0),
305 OC_REQUEST_FLAG = (1 << 1),
306 OC_OBSERVE_FLAG = (1 << 2)
307 } OCEntityHandlerFlag; //entity_handler_flag_t ;
309 // possible returned values from client application
311 OC_STACK_DELETE_TRANSACTION = 0,
312 OC_STACK_KEEP_TRANSACTION
313 } OCStackApplicationResult;
315 //-----------------------------------------------------------------------------
316 // Callback function definitions
317 //-----------------------------------------------------------------------------
320 * Client applications implement this callback to consume responses received from Servers.
322 typedef OCStackApplicationResult (* OCClientResponseHandler)(void *context, OCDoHandle handle,
323 OCClientResponse * clientResponse);
326 * Client applications using a context pointer implement this callback to delete the
327 * context upon removal of the callback/context pointer from the internal callback-list
329 typedef void (* OCClientContextDeleter)(void *context);
332 * This info is passed from application to OC Stack when initiating a request to Server
336 OCClientResponseHandler cb;
337 OCClientContextDeleter cd;
341 * Application server implementations must implement this callback to consume requests OTA.
342 * Entity handler callback needs to fill the resPayload of the entityHandlerRequest.
344 typedef OCEntityHandlerResult (*OCEntityHandler)
345 (OCEntityHandlerFlag flag, OCEntityHandlerRequest * entityHandlerRequest);
348 * Device Entity handler need to use this call back instead of OCEntityHandler
350 typedef OCEntityHandlerResult (*OCDeviceEntityHandler)
351 (OCEntityHandlerFlag flag, OCEntityHandlerRequest * entityHandlerRequest, char* uri);
353 //-----------------------------------------------------------------------------
354 // Function prototypes
355 //-----------------------------------------------------------------------------
358 * Initialize the OC Stack. Must be called prior to starting the stack.
361 * IP Address of host device
363 * Port of host device
365 * Host device is client, server, or client-server
368 * OC_STACK_OK - no errors
369 * OC_STACK_ERROR - stack init error
371 OCStackResult OCInit(const char *ipAddr, uint16_t port, OCMode mode);
374 * Stop the OC stack. Use for a controlled shutdown.
376 * Note: OCStop() performs operations similar to OCStopPresence(), as well as OCDeleteResource() on
377 * all resources this server is hosting. OCDeleteResource() performs operations similar to
378 * OCNotifyAllObservers() to notify all client observers that the respective resource is being
382 * OC_STACK_OK - no errors
383 * OC_STACK_ERROR - stack not initialized
385 OCStackResult OCStop();
388 * Called in main loop of OC client or server. Allows low-level processing of
392 * OC_STACK_OK - no errors
393 * OC_STACK_ERROR - stack process error
395 OCStackResult OCProcess();
398 * Discover or Perform requests on a specified resource (specified by that Resource's respective
401 * @param handle - @ref OCDoHandle to refer to the request sent out on behalf of
403 * @param method - @ref OCMethod to perform on the resource
404 * @param requiredUri - URI of the resource to interact with
405 * @param referenceUri - URI of the reference resource
406 * @param request - JSON encoded request
407 * @param qos - quality of service
408 * @param clientApplicationCB- asynchronous callback function that is invoked
409 * by the stack when discovery or resource interaction is complete
410 * @param options - The address of an array containing the vendor specific
411 * header options to be sent with the request
412 * @param numOptions - Number of header options to be included
414 * Note: Presence subscription amendments (ie. adding additional resource type filters by calling
415 * this API again) require the use of the same base URI as the original request to successfully
416 * amend the presence filters.
419 * OC_STACK_OK - no errors
420 * OC_STACK_INVALID_CALLBACK - invalid callback function pointer
421 * OC_STACK_INVALID_METHOD - invalid resource method
422 * OC_STACK_INVALID_URI - invalid required or reference URI
423 * OC_STACK_INVALID_QUERY - number of resource types specified for filtering presence
424 * notifications exceeds @ref MAX_PRESENCE_FILTERS.
426 OCStackResult OCDoResource(OCDoHandle *handle, OCMethod method, const char *requiredUri, const char *referenceUri,
427 const char *request, OCQualityOfService qos, OCCallbackData *cbData, OCHeaderOption * options,
431 * Cancel a request associated with a specific @ref OCDoResource invocation.
433 * @param handle - Used to identify a specific OCDoResource invocation.
434 * @param qos - used to specify Quality of Service (read below for more info)
435 * @param options- used to specify vendor specific header options when sending
436 * explicit observe cancellation
437 * @param numOptions- Number of header options to be included
440 * OC_STACK_OK - No errors; Success
441 * OC_STACK_INVALID_PARAM - The handle provided is invalid.
443 OCStackResult OCCancel(OCDoHandle handle, OCQualityOfService qos, OCHeaderOption * options,
448 * When operating in @ref OCServer or @ref OCClientServer mode, this API will start sending out
449 * presence notifications to clients via multicast. Once this API has been called with a success,
450 * clients may query for this server's presence and this server's stack will respond via multicast.
452 * Server can call this function when it comes online for the first time, or when it comes back
453 * online from offline mode, or when it re enters network.
455 * @param ttl - Time To Live in seconds
456 * Note: If ttl is '0', then the default stack value will be used (60 Seconds).
459 * OC_STACK_OK - No errors; Success
461 OCStackResult OCStartPresence(const uint32_t ttl);
464 * When operating in @ref OCServer or @ref OCClientServer mode, this API will stop sending out
465 * presence notifications to clients via multicast. Once this API has been called with a success,
466 * this server's stack will not respond to clients querying for this server's presence.
468 * Server can call this function when it is terminating, going offline, or when going
472 * OC_STACK_OK - No errors; Success
475 OCStackResult OCStopPresence();
480 * Set default device entity handler
482 * @param entityHandler - entity handler function that is called by ocstack to handle requests for
483 * any undefined resources or default actions.
484 * if NULL is passed it removes the device default entity handler.
487 * OC_STACK_OK - no errors
488 * OC_STACK_ERROR - stack process error
490 OCStackResult OCSetDefaultDeviceEntityHandler(OCDeviceEntityHandler entityHandler);
495 * @param handle - pointer to handle to newly created resource. Set by ocstack. Used to refer to resource
496 * @param resourceTypeName - name of resource type. Example: "core.led"
497 * @param resourceInterfaceName - name of resource interface. Example: "core.rw"
498 * @param uri - URI of the resource. Example: "/a/led"
499 * @param entityHandler - entity handler function that is called by ocstack to handle requests, etc
500 * NULL for default entity handler
501 * @param resourceProperties - properties supported by resource. Example: OC_DISCOVERABLE|OC_OBSERVABLE
504 * OC_STACK_OK - no errors
505 * OC_STACK_ERROR - stack process error
507 OCStackResult OCCreateResource(OCResourceHandle *handle,
508 const char *resourceTypeName,
509 const char *resourceInterfaceName,
511 OCEntityHandler entityHandler,
512 uint8_t resourceProperties);
515 * Create a resource. with host ip address for remote resource
517 * @param handle - pointer to handle to newly created resource. Set by ocstack.
518 * Used to refer to resource
519 * @param resourceTypeName - name of resource type. Example: "core.led"
520 * @param resourceInterfaceName - name of resource interface. Example: "core.rw"
521 * @param host - HOST address of the remote resource. Example: "coap://xxx.xxx.xxx.xxx:xxxxx"
522 * @param uri - URI of the resource. Example: "/a/led"
523 * @param entityHandler - entity handler function that is called by ocstack to handle requests, etc
524 * NULL for default entity handler
525 * @param resourceProperties - properties supported by resource.
526 * Example: OC_DISCOVERABLE|OC_OBSERVABLE
529 * OC_STACK_OK - no errors
530 * OC_STACK_ERROR - stack process error
532 OCStackResult OCCreateResourceWithHost(OCResourceHandle *handle,
533 const char *resourceTypeName,
534 const char *resourceInterfaceName,
537 OCEntityHandler entityHandler,
538 uint8_t resourceProperties);
541 * Add a resource to a collection resource.
543 * @param collectionHandle - handle to the collection resource
544 * @param resourceHandle - handle to resource to be added to the collection resource
547 * OC_STACK_OK - no errors
548 * OC_STACK_ERROR - stack process error
549 * OC_STACK_INVALID_PARAM - invalid collectionhandle
551 OCStackResult OCBindResource(OCResourceHandle collectionHandle, OCResourceHandle resourceHandle);
554 * Remove a resource from a collection resource.
556 * @param collectionHandle - handle to the collection resource
557 * @param resourceHandle - handle to resource to be removed from the collection resource
560 * OC_STACK_OK - no errors
561 * OC_STACK_ERROR - stack process error
562 * OC_STACK_INVALID_PARAM - invalid collectionhandle
564 OCStackResult OCUnBindResource(OCResourceHandle collectionHandle, OCResourceHandle resourceHandle);
567 * Bind a resourcetype to a resource.
569 * @param handle - handle to the resource
570 * @param resourceTypeName - name of resource type. Example: "core.led"
573 * OC_STACK_OK - no errors
574 * OC_STACK_ERROR - stack process error
576 OCStackResult OCBindResourceTypeToResource(OCResourceHandle handle,
577 const char *resourceTypeName);
579 * Bind a resource interface to a resource.
581 * @param handle - handle to the resource
582 * @param resourceInterfaceName - name of resource interface. Example: "core.rw"
585 * OC_STACK_OK - no errors
586 * OC_STACK_ERROR - stack process error
588 OCStackResult OCBindResourceInterfaceToResource(OCResourceHandle handle,
589 const char *resourceInterfaceName);
592 * Bind an entity handler to the resource.
594 * @param handle - handle to the resource that the contained resource is to be bound
595 * @param entityHandler - entity handler function that is called by ocstack to handle requests, etc
597 * OC_STACK_OK - no errors
598 * OC_STACK_ERROR - stack process error
600 OCStackResult OCBindResourceHandler(OCResourceHandle handle, OCEntityHandler entityHandler);
603 * Get the number of resources that have been created in the stack.
605 * @param numResources - pointer to count variable
608 * OC_STACK_OK - no errors
609 * OC_STACK_ERROR - stack process error
612 OCStackResult OCGetNumberOfResources(uint8_t *numResources);
615 * Get a resource handle by index.
617 * @param index - index of resource, 0 to Count - 1
620 * Resource handle - if found
621 * NULL - if not found
623 OCResourceHandle OCGetResourceHandle(uint8_t index);
626 * Delete resource specified by handle. Deletes resource and all resourcetype and resourceinterface
629 * Note: OCDeleteResource() performs operations similar to OCNotifyAllObservers() to notify all
630 * client observers that "this" resource is being deleted.
632 * @param handle - handle of resource to be deleted
635 * OC_STACK_OK - no errors
636 * OC_STACK_ERROR - stack process error
638 OCStackResult OCDeleteResource(OCResourceHandle handle);
641 * Get the URI of the resource specified by handle.
643 * @param handle - handle of resource
645 * URI string - if resource found
646 * NULL - resource not found
648 const char *OCGetResourceUri(OCResourceHandle handle);
651 * Get the properties of the resource specified by handle.
652 * NOTE: that after a resource is created, the OC_ACTIVE property is set
653 * for the resource by the stack.
655 * @param handle - handle of resource
657 * property bitmap - if resource found
658 * NULL - resource not found
660 uint8_t OCGetResourceProperties(OCResourceHandle handle);
663 * Get the number of resource types of the resource.
665 * @param handle - handle of resource
666 * @param numResourceTypes - pointer to count variable
669 * OC_STACK_OK - no errors
670 * OC_STACK_ERROR - stack process error
672 OCStackResult OCGetNumberOfResourceTypes(OCResourceHandle handle, uint8_t *numResourceTypes);
675 * Get name of resource type of the resource.
677 * @param handle - handle of resource
678 * @param index - index of resource, 0 to Count - 1
681 * resource type name - if resource found
682 * NULL - resource not found
684 const char *OCGetResourceTypeName(OCResourceHandle handle, uint8_t index);
687 * Get the number of resource interfaces of the resource.
689 * @param handle - handle of resource
690 * @param numResources - pointer to count variable
693 * OC_STACK_OK - no errors
694 * OC_STACK_ERROR - stack process error
697 OCStackResult OCGetNumberOfResourceInterfaces(OCResourceHandle handle, uint8_t *numResourceInterfaces);
700 * Get name of resource interface of the resource.
702 * @param handle - handle of resource
703 * @param index - index of resource, 0 to Count - 1
706 * resource interface name - if resource found
707 * NULL - resource not found
709 const char *OCGetResourceInterfaceName(OCResourceHandle handle, uint8_t index);
712 * Get methods of resource interface of the resource.
714 * @param handle - handle of resource
715 * @param index - index of resource, 0 to Count - 1
718 * allowed methods - if resource found
719 * NULL - resource not found
721 uint8_t OCGetResourceInterfaceAllowedMethods(OCResourceHandle handle, uint8_t index);
724 * Get resource handle from the collection resource by index.
726 * @param collectionHandle - handle of collection resource
727 * @param index - index of contained resource, 0 to Count - 1
730 * handle to contained resource - if resource found
731 * NULL - resource not found
733 OCResourceHandle OCGetResourceHandleFromCollection(OCResourceHandle collectionHandle, uint8_t index);
736 * Get the entity handler for a resource.
738 * @param handle - handle of resource
741 * entity handler - if resource found
742 * NULL - resource not found
744 OCEntityHandler OCGetResourceHandler(OCResourceHandle handle);
747 * Notify all registered observers that the resource representation has
748 * changed. If observation includes a query the client is notified only
749 * if the query is valid after the resource representation has changed.
751 * @param handle - handle of resource
754 * OC_STACK_OK - no errors
755 * OC_STACK_NO_RESOURCE - invalid resource handle
756 * OC_STACK_NO_OBSERVERS - no more observers intrested in resource
758 OCStackResult OCNotifyAllObservers(OCResourceHandle handle, OCQualityOfService qos);
761 * Notify specific observers with updated value of representation.
762 * Before this API is invoked by entity handler it has finished processing
763 * queries for the associated observers.
765 * @param handle - handle of resource
766 * @param obsIdList - list of observation ids that need to be notified
767 * @param numberOfIds - number of observation ids included in obsIdList
768 * @param notificationJSONPayload - JSON encoded payload to send in notification
769 * @param qos - desired quality of service of the observation notifications
770 * NOTE: The memory for obsIdList and notificationJSONPayload is managed by the
771 * entity invoking the API. The maximum size of the notification is 1015 bytes
772 * for non-Arduino platforms. For Arduino the maximum size is 247 bytes.
775 * OC_STACK_OK - no errors
776 * OC_STACK_NO_RESOURCE - invalid resource handle
779 OCNotifyListOfObservers (OCResourceHandle handle,
780 OCObservationId *obsIdList,
782 unsigned char *notificationJSONPayload,
783 OCQualityOfService qos);
787 * Send a response to a request.
788 * The response can be a normal, slow, or block (i.e. a response that
789 * is too large to be sent in a single PDU and must span multiple transmissions)
791 * @param response - pointer to structure that contains response parameters
794 * OC_STACK_OK - no errors
796 OCStackResult OCDoResponse(OCEntityHandlerResponse *response);
799 * Cancel a response. Applies to a block response
801 * @param responseHandle - response handle set by stack in OCServerResponse after
802 * OCDoResponse is called
805 * OC_STACK_OK - No errors; Success
806 * OC_STACK_INVALID_PARAM - The handle provided is invalid.
808 OCStackResult OCCancelResponse(OCResponseHandle responseHandle);
813 #endif // __cplusplus
815 #endif /* OCSTACK_H_ */