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_REPEATED_REQUEST,
162 OC_STACK_NO_OBSERVERS, /* resource has no registered observers */
163 OC_STACK_OBSERVER_NOT_FOUND,
165 OC_STACK_PRESENCE_STOPPED,
166 OC_STACK_PRESENCE_TIMEOUT,
167 OC_STACK_PRESENCE_DO_NOT_HANDLE,
169 OC_STACK_VIRTUAL_DO_NOT_HANDLE,
170 OC_STACK_INVALID_OPTION,
171 OC_STACK_MALFORMED_RESPONSE, /* the remote reply contained malformed data */
172 OC_STACK_PERSISTENT_BUFFER_REQUIRED,
173 OC_STACK_INVALID_REQUEST_HANDLE,
174 OC_STACK_INVALID_DEVICE_INFO,
176 /* Error status code - END HERE */
180 * Handle to an @ref OCDoResource invocation.
182 typedef void * OCDoHandle;
185 * Handle to an OCResource object owned by the OCStack.
187 typedef void * OCResourceHandle;
189 typedef void * OCRequestHandle;
190 typedef void * OCResponseHandle;
193 * Unique identifier for each observation request. Used when observations are
194 * registered or deregistering. Used by entity handler to signal specific
195 * observers to be notified of resource changes.
196 * There can be maximum of 256 observations per server.
198 typedef uint8_t OCObservationId;
201 * Action associated with observation
204 OC_OBSERVE_REGISTER = 0,
205 OC_OBSERVE_DEREGISTER = 1,
206 OC_OBSERVE_NO_OPTION = 2
210 // Action associated with observation request
211 OCObserveAction action;
212 // Identifier for observation being registered/deregistered
213 OCObservationId obsId;
217 * Possible returned values from entity handler
222 OC_EH_RESOURCE_CREATED,
223 OC_EH_RESOURCE_DELETED,
226 } OCEntityHandlerResult;
228 // following structure will be used to define the vendor specific header options to be included
229 // in communication packets
231 typedef struct OCHeaderOption {
232 // The protocol ID this option applies to
233 OCTransportProtocolID protocolID;
234 // The header option ID which will be added to communication packets
237 uint16_t optionLength;
238 // pointer to its data
239 uint8_t optionData[MAX_HEADER_OPTION_DATA_LENGTH];
243 * Incoming requests handled by the server. Requests are passed in as a parameter to the @ref OCEntityHandler callback API.
244 * @brief The @ref OCEntityHandler callback API must be implemented in the application in order to receive these requests.
247 // Associated resource
248 OCResourceHandle resource;
249 OCRequestHandle requestHandle;
250 // the REST method retrieved from received request PDU
252 // resource query send by client
253 unsigned char * query;
254 // Information associated with observation - valid only when OCEntityHandler
255 // flag includes OC_OBSERVE_FLAG
256 OCObservationInfo obsInfo;
257 // An array of the received vendor specific header options
258 uint8_t numRcvdVendorSpecificHeaderOptions;
259 OCHeaderOption * rcvdVendorSpecificHeaderOptions;
260 // reqJSON is retrieved from the payload of the received request PDU
261 unsigned char * reqJSONPayload;
262 }OCEntityHandlerRequest;
265 * Response from queries to remote servers. Queries are made by calling the @ref OCDoResource API.
268 // Address of remote server
270 // the is the result of our stack, OCStackResult should contain coap/other error codes;
271 OCStackResult result;
272 // If associated with observe, this will represent the sequence of notifications from server.
273 uint32_t sequenceNumber;
274 // resJSONPayload is retrieved from the payload of the received request PDU
275 unsigned const char * resJSONPayload;
276 // An array of the received vendor specific header options
277 uint8_t numRcvdVendorSpecificHeaderOptions;
278 OCHeaderOption rcvdVendorSpecificHeaderOptions[MAX_HEADER_OPTIONS];
282 * Following structure describes the device properties. All non-Null properties will be included
283 * in a device discovery request.
292 char *manufacturerName;
293 char *manufacturerUrl;
295 char *dateOfManufacture;
296 char *platformVersion;
297 char *firmwareVersion;
303 // Request handle is passed to server via the entity handler for each incoming request.
304 // Stack assigns when request is received, server sets to indicate what request response is for
305 OCRequestHandle requestHandle;
306 // New handle for tracking block (or slow) response. Stack assigns, server uses for subsequent calls
307 OCResponseHandle *responseHandle;
309 OCResourceHandle resourceHandle;
310 // Allow the entity handler to pass a result with the response
311 OCEntityHandlerResult ehResult;
312 // this is the pointer to server payload data to be transferred
313 unsigned char *payload;
314 // size of server payload data. I don't think we should rely on null terminated data for size
315 uint16_t payloadSize;
316 // An array of the vendor specific header options the entity handler wishes to use in response
317 uint8_t numSendVendorSpecificHeaderOptions;
318 OCHeaderOption sendVendorSpecificHeaderOptions[MAX_HEADER_OPTIONS];
319 // URI of new resource that entity handler might create
320 unsigned char resourceUri[MAX_URI_LENGTH];
321 // Server sets to true for persistent response buffer, false for non-persistent response buffer
322 uint8_t persistentBufferFlag;
323 } OCEntityHandlerResponse;
326 OC_INIT_FLAG = (1 << 0),
327 OC_REQUEST_FLAG = (1 << 1),
328 OC_OBSERVE_FLAG = (1 << 2)
329 } OCEntityHandlerFlag; //entity_handler_flag_t ;
331 // possible returned values from client application
333 OC_STACK_DELETE_TRANSACTION = 0,
334 OC_STACK_KEEP_TRANSACTION
335 } OCStackApplicationResult;
337 //-----------------------------------------------------------------------------
338 // Callback function definitions
339 //-----------------------------------------------------------------------------
342 * Client applications implement this callback to consume responses received from Servers.
344 typedef OCStackApplicationResult (* OCClientResponseHandler)(void *context, OCDoHandle handle,
345 OCClientResponse * clientResponse);
348 * Client applications using a context pointer implement this callback to delete the
349 * context upon removal of the callback/context pointer from the internal callback-list
351 typedef void (* OCClientContextDeleter)(void *context);
354 * This info is passed from application to OC Stack when initiating a request to Server
358 OCClientResponseHandler cb;
359 OCClientContextDeleter cd;
363 * Application server implementations must implement this callback to consume requests OTA.
364 * Entity handler callback needs to fill the resPayload of the entityHandlerRequest.
366 typedef OCEntityHandlerResult (*OCEntityHandler)
367 (OCEntityHandlerFlag flag, OCEntityHandlerRequest * entityHandlerRequest);
370 * Device Entity handler need to use this call back instead of OCEntityHandler
372 typedef OCEntityHandlerResult (*OCDeviceEntityHandler)
373 (OCEntityHandlerFlag flag, OCEntityHandlerRequest * entityHandlerRequest, char* uri);
375 //-----------------------------------------------------------------------------
376 // Function prototypes
377 //-----------------------------------------------------------------------------
380 * Initialize the OC Stack. Must be called prior to starting the stack.
383 * IP Address of host device
385 * Port of host device
387 * Host device is client, server, or client-server
390 * OC_STACK_OK - no errors
391 * OC_STACK_ERROR - stack init error
393 OCStackResult OCInit(const char *ipAddr, uint16_t port, OCMode mode);
396 * Stop the OC stack. Use for a controlled shutdown.
398 * Note: OCStop() performs operations similar to OCStopPresence(), as well as OCDeleteResource() on
399 * all resources this server is hosting. OCDeleteResource() performs operations similar to
400 * OCNotifyAllObservers() to notify all client observers that the respective resource is being
404 * OC_STACK_OK - no errors
405 * OC_STACK_ERROR - stack not initialized
407 OCStackResult OCStop();
410 * Called in main loop of OC client or server. Allows low-level processing of
414 * OC_STACK_OK - no errors
415 * OC_STACK_ERROR - stack process error
417 OCStackResult OCProcess();
420 * Discover or Perform requests on a specified resource (specified by that Resource's respective
423 * @param handle - @ref OCDoHandle to refer to the request sent out on behalf of
425 * @param method - @ref OCMethod to perform on the resource
426 * @param requiredUri - URI of the resource to interact with
427 * @param referenceUri - URI of the reference resource
428 * @param request - JSON encoded request
429 * @param qos - quality of service. Note that if this API is called on a uri with
430 * the well-known multicast IP address, the qos will be forced to
432 * since it is impractical to send other QOS levels on such addresses.
433 * @param clientApplicationCB- asynchronous callback function that is invoked
434 * by the stack when discovery or resource interaction is complete
435 * @param options - The address of an array containing the vendor specific
436 * header options to be sent with the request
437 * @param numOptions - Number of header options to be included
439 * Note: Presence subscription amendments (ie. adding additional resource type filters by calling
440 * this API again) require the use of the same base URI as the original request to successfully
441 * amend the presence filters.
444 * OC_STACK_OK - no errors
445 * OC_STACK_INVALID_CALLBACK - invalid callback function pointer
446 * OC_STACK_INVALID_METHOD - invalid resource method
447 * OC_STACK_INVALID_URI - invalid required or reference URI
448 * OC_STACK_INVALID_QUERY - number of resource types specified for filtering presence
449 * notifications exceeds @ref MAX_PRESENCE_FILTERS.
451 OCStackResult OCDoResource(OCDoHandle *handle, OCMethod method, const char *requiredUri, const char *referenceUri,
452 const char *request, OCQualityOfService qos, OCCallbackData *cbData, OCHeaderOption * options,
456 * Cancel a request associated with a specific @ref OCDoResource invocation.
458 * @param handle - Used to identify a specific OCDoResource invocation.
459 * @param qos - used to specify Quality of Service (read below for more info)
460 * @param options- used to specify vendor specific header options when sending
461 * explicit observe cancellation
462 * @param numOptions- Number of header options to be included
465 * OC_STACK_OK - No errors; Success
466 * OC_STACK_INVALID_PARAM - The handle provided is invalid.
468 OCStackResult OCCancel(OCDoHandle handle, OCQualityOfService qos, OCHeaderOption * options,
473 * When operating in @ref OCServer or @ref OCClientServer mode, this API will start sending out
474 * presence notifications to clients via multicast. Once this API has been called with a success,
475 * clients may query for this server's presence and this server's stack will respond via multicast.
477 * Server can call this function when it comes online for the first time, or when it comes back
478 * online from offline mode, or when it re enters network.
480 * @param ttl - Time To Live in seconds
481 * Note: If ttl is '0', then the default stack value will be used (60 Seconds).
484 * OC_STACK_OK - No errors; Success
486 OCStackResult OCStartPresence(const uint32_t ttl);
489 * When operating in @ref OCServer or @ref OCClientServer mode, this API will stop sending out
490 * presence notifications to clients via multicast. Once this API has been called with a success,
491 * this server's stack will not respond to clients querying for this server's presence.
493 * Server can call this function when it is terminating, going offline, or when going
497 * OC_STACK_OK - No errors; Success
500 OCStackResult OCStopPresence();
505 * Set default device entity handler
507 * @param entityHandler - entity handler function that is called by ocstack to handle requests for
508 * any undefined resources or default actions.
509 * if NULL is passed it removes the device default entity handler.
512 * OC_STACK_OK - no errors
513 * OC_STACK_ERROR - stack process error
515 OCStackResult OCSetDefaultDeviceEntityHandler(OCDeviceEntityHandler entityHandler);
518 * Set device information.
520 * @param deviceInfo - Structure passed by the server application containing
521 * the device information.
525 * OC_STACK_OK - no errors
526 * OC_STACK_INVALID_PARAM - invalid paramerter
527 * OC_STACK_ERROR - stack process error
529 OCStackResult OCSetDeviceInfo(OCDeviceInfo deviceInfo);
534 * @param handle - pointer to handle to newly created resource. Set by ocstack. Used to refer to resource
535 * @param resourceTypeName - name of resource type. Example: "core.led"
536 * @param resourceInterfaceName - name of resource interface. Example: "core.rw"
537 * @param uri - URI of the resource. Example: "/a/led"
538 * @param entityHandler - entity handler function that is called by ocstack to handle requests, etc
539 * NULL for default entity handler
540 * @param resourceProperties - properties supported by resource. Example: OC_DISCOVERABLE|OC_OBSERVABLE
543 * OC_STACK_OK - no errors
544 * OC_STACK_ERROR - stack process error
546 OCStackResult OCCreateResource(OCResourceHandle *handle,
547 const char *resourceTypeName,
548 const char *resourceInterfaceName,
550 OCEntityHandler entityHandler,
551 uint8_t resourceProperties);
554 * Create a resource. with host ip address for remote resource
556 * @param handle - pointer to handle to newly created resource. Set by ocstack.
557 * Used to refer to resource
558 * @param resourceTypeName - name of resource type. Example: "core.led"
559 * @param resourceInterfaceName - name of resource interface. Example: "core.rw"
560 * @param host - HOST address of the remote resource. Example: "coap://xxx.xxx.xxx.xxx:xxxxx"
561 * @param uri - URI of the resource. Example: "/a/led"
562 * @param entityHandler - entity handler function that is called by ocstack to handle requests, etc
563 * NULL for default entity handler
564 * @param resourceProperties - properties supported by resource.
565 * Example: OC_DISCOVERABLE|OC_OBSERVABLE
568 * OC_STACK_OK - no errors
569 * OC_STACK_ERROR - stack process error
571 OCStackResult OCCreateResourceWithHost(OCResourceHandle *handle,
572 const char *resourceTypeName,
573 const char *resourceInterfaceName,
576 OCEntityHandler entityHandler,
577 uint8_t resourceProperties);
580 * Add a resource to a collection resource.
582 * @param collectionHandle - handle to the collection resource
583 * @param resourceHandle - handle to resource to be added to the collection resource
586 * OC_STACK_OK - no errors
587 * OC_STACK_ERROR - stack process error
588 * OC_STACK_INVALID_PARAM - invalid collectionhandle
590 OCStackResult OCBindResource(OCResourceHandle collectionHandle, OCResourceHandle resourceHandle);
593 * Remove a resource from a collection resource.
595 * @param collectionHandle - handle to the collection resource
596 * @param resourceHandle - handle to resource to be removed from the collection resource
599 * OC_STACK_OK - no errors
600 * OC_STACK_ERROR - stack process error
601 * OC_STACK_INVALID_PARAM - invalid collectionhandle
603 OCStackResult OCUnBindResource(OCResourceHandle collectionHandle, OCResourceHandle resourceHandle);
606 * Bind a resourcetype to a resource.
608 * @param handle - handle to the resource
609 * @param resourceTypeName - name of resource type. Example: "core.led"
612 * OC_STACK_OK - no errors
613 * OC_STACK_ERROR - stack process error
615 OCStackResult OCBindResourceTypeToResource(OCResourceHandle handle,
616 const char *resourceTypeName);
618 * Bind a resource interface to a resource.
620 * @param handle - handle to the resource
621 * @param resourceInterfaceName - name of resource interface. Example: "core.rw"
624 * OC_STACK_OK - no errors
625 * OC_STACK_ERROR - stack process error
627 OCStackResult OCBindResourceInterfaceToResource(OCResourceHandle handle,
628 const char *resourceInterfaceName);
631 * Bind an entity handler to the resource.
633 * @param handle - handle to the resource that the contained resource is to be bound
634 * @param entityHandler - entity handler function that is called by ocstack to handle requests, etc
636 * OC_STACK_OK - no errors
637 * OC_STACK_ERROR - stack process error
639 OCStackResult OCBindResourceHandler(OCResourceHandle handle, OCEntityHandler entityHandler);
642 * Get the number of resources that have been created in the stack.
644 * @param numResources - pointer to count variable
647 * OC_STACK_OK - no errors
648 * OC_STACK_ERROR - stack process error
651 OCStackResult OCGetNumberOfResources(uint8_t *numResources);
654 * Get a resource handle by index.
656 * @param index - index of resource, 0 to Count - 1
659 * Resource handle - if found
660 * NULL - if not found
662 OCResourceHandle OCGetResourceHandle(uint8_t index);
665 * Delete resource specified by handle. Deletes resource and all resourcetype and resourceinterface
668 * Note: OCDeleteResource() performs operations similar to OCNotifyAllObservers() to notify all
669 * client observers that "this" resource is being deleted.
671 * @param handle - handle of resource to be deleted
674 * OC_STACK_OK - no errors
675 * OC_STACK_ERROR - stack process error
677 OCStackResult OCDeleteResource(OCResourceHandle handle);
680 * Get the URI of the resource specified by handle.
682 * @param handle - handle of resource
684 * URI string - if resource found
685 * NULL - resource not found
687 const char *OCGetResourceUri(OCResourceHandle handle);
690 * Get the properties of the resource specified by handle.
691 * NOTE: that after a resource is created, the OC_ACTIVE property is set
692 * for the resource by the stack.
694 * @param handle - handle of resource
696 * property bitmap - if resource found
697 * NULL - resource not found
699 uint8_t OCGetResourceProperties(OCResourceHandle handle);
702 * Get the number of resource types of the resource.
704 * @param handle - handle of resource
705 * @param numResourceTypes - pointer to count variable
708 * OC_STACK_OK - no errors
709 * OC_STACK_ERROR - stack process error
711 OCStackResult OCGetNumberOfResourceTypes(OCResourceHandle handle, uint8_t *numResourceTypes);
714 * Get name of resource type of the resource.
716 * @param handle - handle of resource
717 * @param index - index of resource, 0 to Count - 1
720 * resource type name - if resource found
721 * NULL - resource not found
723 const char *OCGetResourceTypeName(OCResourceHandle handle, uint8_t index);
726 * Get the number of resource interfaces of the resource.
728 * @param handle - handle of resource
729 * @param numResources - pointer to count variable
732 * OC_STACK_OK - no errors
733 * OC_STACK_ERROR - stack process error
736 OCStackResult OCGetNumberOfResourceInterfaces(OCResourceHandle handle, uint8_t *numResourceInterfaces);
739 * Get name of resource interface of the resource.
741 * @param handle - handle of resource
742 * @param index - index of resource, 0 to Count - 1
745 * resource interface name - if resource found
746 * NULL - resource not found
748 const char *OCGetResourceInterfaceName(OCResourceHandle handle, uint8_t index);
751 * Get methods of resource interface of the resource.
753 * @param handle - handle of resource
754 * @param index - index of resource, 0 to Count - 1
757 * allowed methods - if resource found
758 * NULL - resource not found
760 uint8_t OCGetResourceInterfaceAllowedMethods(OCResourceHandle handle, uint8_t index);
763 * Get resource handle from the collection resource by index.
765 * @param collectionHandle - handle of collection resource
766 * @param index - index of contained resource, 0 to Count - 1
769 * handle to contained resource - if resource found
770 * NULL - resource not found
772 OCResourceHandle OCGetResourceHandleFromCollection(OCResourceHandle collectionHandle, uint8_t index);
775 * Get the entity handler for a resource.
777 * @param handle - handle of resource
780 * entity handler - if resource found
781 * NULL - resource not found
783 OCEntityHandler OCGetResourceHandler(OCResourceHandle handle);
786 * Notify all registered observers that the resource representation has
787 * changed. If observation includes a query the client is notified only
788 * if the query is valid after the resource representation has changed.
790 * @param handle - handle of resource
793 * OC_STACK_OK - no errors
794 * OC_STACK_NO_RESOURCE - invalid resource handle
795 * OC_STACK_NO_OBSERVERS - no more observers intrested in resource
797 OCStackResult OCNotifyAllObservers(OCResourceHandle handle, OCQualityOfService qos);
800 * Notify specific observers with updated value of representation.
801 * Before this API is invoked by entity handler it has finished processing
802 * queries for the associated observers.
804 * @param handle - handle of resource
805 * @param obsIdList - list of observation ids that need to be notified
806 * @param numberOfIds - number of observation ids included in obsIdList
807 * @param notificationJSONPayload - JSON encoded payload to send in notification
808 * @param qos - desired quality of service of the observation notifications
809 * NOTE: The memory for obsIdList and notificationJSONPayload is managed by the
810 * entity invoking the API. The maximum size of the notification is 1015 bytes
811 * for non-Arduino platforms. For Arduino the maximum size is 247 bytes.
814 * OC_STACK_OK - no errors
815 * OC_STACK_NO_RESOURCE - invalid resource handle
818 OCNotifyListOfObservers (OCResourceHandle handle,
819 OCObservationId *obsIdList,
821 unsigned char *notificationJSONPayload,
822 OCQualityOfService qos);
826 * Send a response to a request.
827 * The response can be a normal, slow, or block (i.e. a response that
828 * is too large to be sent in a single PDU and must span multiple transmissions)
830 * @param response - pointer to structure that contains response parameters
833 * OC_STACK_OK - no errors
835 OCStackResult OCDoResponse(OCEntityHandlerResponse *response);
838 * Cancel a response. Applies to a block response
840 * @param responseHandle - response handle set by stack in OCServerResponse after
841 * OCDoResponse is called
844 * OC_STACK_OK - No errors; Success
845 * OC_STACK_INVALID_PARAM - The handle provided is invalid.
847 OCStackResult OCCancelResponse(OCResponseHandle responseHandle);
852 #endif // __cplusplus
854 #endif /* OCSTACK_H_ */