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
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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.
38 #define OC_WELL_KNOWN_QUERY "224.0.1.187:5683/oc/core"
39 #define OC_EXPLICIT_DEVICE_DISCOVERY_URI "224.0.1.187:5683/oc/core/d?rt=core.led"
40 #define OC_MULTICAST_PREFIX "224.0.1.187:5683"
41 #define OC_MULTICAST_IP "224.0.1.187"
42 #define OC_MULTICAST_PORT 5683
45 #define OC_DEFAULT_PRESENCE_TTL (60)
46 #define OC_PRESENCE_URI "/oc/presence"
49 //-----------------------------------------------------------------------------
51 //-----------------------------------------------------------------------------
54 * Data structure to encapsulate IPv4/IPv6/Contiki/lwIP device addresses.
56 typedef struct OCDevAddr
58 uint32_t size; // length of the address stored in addr field.
59 uint8_t addr[DEV_ADDR_SIZE_MAX]; // device address.
63 * OC Virtual resources supported by every OC device.
67 OC_WELL_KNOWN_URI= 0, // "/oc/core"
68 OC_DEVICE_URI, // "/oc/core/d"
69 OC_RESOURCE_TYPES_URI, // "/oc/core/d/type"
71 OC_PRESENCE, // "/oc/presence"
73 OC_MAX_VIRTUAL_RESOURCES // Max items in the list
77 * Standard RESTful HTTP Methods.
82 OC_REST_GET = (1 << 0), // Read
83 OC_REST_PUT = (1 << 1), // Write
84 OC_REST_POST = (1 << 2), // Update
85 OC_REST_DELETE = (1 << 3), // Delete
86 // Register observe request for most up date notifications ONLY.
87 OC_REST_OBSERVE = (1 << 4),
88 // Register observe request for all notifications, including stale notifications.
89 OC_REST_OBSERVE_ALL = (1 << 5),
90 // Deregister observation, intended for internal use
91 OC_REST_CANCEL_OBSERVE = (1 << 6),
93 // Subscribe for all presence notifications of a particular resource.
94 OC_REST_PRESENCE = (1 << 7)
99 * Host Mode of Operation.
109 * Quality of Service.
116 OC_NA_QOS // No Quality is defined, let the stack decide
117 } OCQualityOfService;
120 * Resource Properties.
122 * ::OC_ACTIVE When this bit is set, the resource is initialized, otherwise the resource
123 * is 'inactive'. 'inactive' signifies that the resource has been marked for
124 * deletion or is already deleted.
125 * ::OC_DISCOVERABLE When this bit is set, the resource is allowed to be discovered by clients.
126 * ::OC_OBSERVABLE When this bit is set, the resource is allowed to be observed by clients.
127 * ::OC_SLOW When this bit is set, the resource has been marked as 'slow'. 'slow' signifies
128 * that responses from this resource can expect delays in processing its
129 * requests from clients.
130 * ::OC_SECURE When this bit is set, the resource is a secure resource.
134 OC_ACTIVE = (1 << 0),
135 OC_DISCOVERABLE = (1 << 1),
136 OC_OBSERVABLE = (1 << 2),
139 } OCResourceProperty;
142 * Transport Protocol IDs.
146 OC_INVALID_ID = (1 << 0),
147 OC_COAP_ID = (1 << 1)
148 } OCTransportProtocolID;
159 OC_ALL // Multicast message: send over all the interfaces.
160 } OCConnectivityType;
163 * Declares Stack Results & Errors.
167 /* Success status code - START HERE */
169 OC_STACK_RESOURCE_CREATED,
170 OC_STACK_RESOURCE_DELETED,
172 /* Success status code - END HERE */
173 /* Error status code - START HERE */
174 OC_STACK_INVALID_URI = 20,
175 OC_STACK_INVALID_QUERY,
177 OC_STACK_INVALID_PORT,
178 OC_STACK_INVALID_CALLBACK,
179 OC_STACK_INVALID_METHOD,
180 OC_STACK_INVALID_PARAM,
181 OC_STACK_INVALID_OBSERVE_PARAM,
185 OC_STACK_ADAPTER_NOT_ENABLED,
187 OC_STACK_NO_RESOURCE, /* resource not found */
188 OC_STACK_RESOURCE_ERROR, /* ex: not supported method or interface */
189 OC_STACK_SLOW_RESOURCE,
190 OC_STACK_NO_OBSERVERS, /* resource has no registered observers */
191 OC_STACK_OBSERVER_NOT_FOUND,
192 OC_STACK_VIRTUAL_DO_NOT_HANDLE,
193 OC_STACK_INVALID_OPTION,
194 OC_STACK_MALFORMED_RESPONSE, /* the remote reply contained malformed data */
195 OC_STACK_PERSISTENT_BUFFER_REQUIRED,
196 OC_STACK_INVALID_REQUEST_HANDLE,
197 OC_STACK_INVALID_DEVICE_INFO,
198 OC_STACK_INVALID_JSON,
199 /* NOTE: Insert all new error codes here!*/
201 OC_STACK_PRESENCE_STOPPED = 128,
202 OC_STACK_PRESENCE_TIMEOUT,
203 OC_STACK_PRESENCE_DO_NOT_HANDLE,
206 /* Error status code - END HERE */
210 * Handle to an @ref OCDoResource invocation.
212 typedef void * OCDoHandle;
215 * Handle to an OCResource object owned by the OCStack.
217 typedef void * OCResourceHandle;
219 typedef void * OCRequestHandle;
220 typedef void * OCResponseHandle;
223 * Unique identifier for each observation request. Used when observations are
224 * registered or deregistering. Used by entity handler to signal specific
225 * observers to be notified of resource changes.
226 * There can be maximum of 256 observations per server.
228 typedef uint8_t OCObservationId;
231 * Action associated with observation.
235 OC_OBSERVE_REGISTER = 0,
236 OC_OBSERVE_DEREGISTER = 1,
237 OC_OBSERVE_NO_OPTION = 2
242 // Action associated with observation request
243 OCObserveAction action;
244 // Identifier for observation being registered/deregistered
245 OCObservationId obsId;
249 * Possible returned values from entity handler.
255 OC_EH_RESOURCE_CREATED,
256 OC_EH_RESOURCE_DELETED,
259 } OCEntityHandlerResult;
262 * This structure will be used to define the vendor specific header options to be included
263 * in communication packets.
265 typedef struct OCHeaderOption
267 // The protocol ID this option applies to
268 OCTransportProtocolID protocolID;
269 // The header option ID which will be added to communication packets
272 uint16_t optionLength;
273 // pointer to its data
274 uint8_t optionData[MAX_HEADER_OPTION_DATA_LENGTH];
278 * Incoming requests handled by the server. Requests are passed in as a parameter to the
279 * @ref OCEntityHandler callback API.
280 * @brief The @ref OCEntityHandler callback API must be implemented in the application in order
281 * to receive these requests.
285 // Associated resource
286 OCResourceHandle resource;
287 OCRequestHandle requestHandle;
288 // the REST method retrieved from received request PDU
290 // resource query send by client
292 // Information associated with observation - valid only when OCEntityHandler
293 // flag includes OC_OBSERVE_FLAG
294 OCObservationInfo obsInfo;
295 // An array of the received vendor specific header options
296 uint8_t numRcvdVendorSpecificHeaderOptions;
297 OCHeaderOption * rcvdVendorSpecificHeaderOptions;
298 // reqJSON is retrieved from the payload of the received request PDU
299 char * reqJSONPayload;
300 } OCEntityHandlerRequest;
303 * Response from queries to remote servers. Queries are made by calling the @ref OCDoResource API.
307 // Address of remote server
309 // Indicates adaptor type on which the response was received
310 OCConnectivityType connType;
311 // the is the result of our stack, OCStackResult should contain coap/other error codes;
312 OCStackResult result;
313 // If associated with observe, this will represent the sequence of notifications from server.
314 uint32_t sequenceNumber;
315 // resJSONPayload is retrieved from the payload of the received request PDU
316 const char * resJSONPayload;
317 // An array of the received vendor specific header options
318 uint8_t numRcvdVendorSpecificHeaderOptions;
319 OCHeaderOption rcvdVendorSpecificHeaderOptions[MAX_HEADER_OPTIONS];
323 * This structure describes the device properties. All non-Null properties will be included
324 * in a device discovery request.
333 char *manufacturerName;
334 char *manufacturerUrl;
336 char *dateOfManufacture;
337 char *platformVersion;
338 char *firmwareVersion;
344 // Request handle is passed to server via the entity handler for each incoming request.
345 // Stack assigns when request is received, server sets to indicate what request response is for
346 OCRequestHandle requestHandle;
347 // New handle for tracking block (or slow) response. Stack assigns, server uses for subsequent calls
348 OCResponseHandle *responseHandle;
350 OCResourceHandle resourceHandle;
351 // Allow the entity handler to pass a result with the response
352 OCEntityHandlerResult ehResult;
353 // this is the pointer to server payload data to be transferred
355 // size of server payload data. I don't think we should rely on null terminated data for size
356 uint16_t payloadSize;
357 // An array of the vendor specific header options the entity handler wishes to use in response
358 uint8_t numSendVendorSpecificHeaderOptions;
359 OCHeaderOption sendVendorSpecificHeaderOptions[MAX_HEADER_OPTIONS];
360 // URI of new resource that entity handler might create
361 char resourceUri[MAX_URI_LENGTH];
362 // Server sets to true for persistent response buffer, false for non-persistent response buffer
363 uint8_t persistentBufferFlag;
364 } OCEntityHandlerResponse;
368 OC_INIT_FLAG = (1 << 0),
369 OC_REQUEST_FLAG = (1 << 1),
370 OC_OBSERVE_FLAG = (1 << 2)
371 } OCEntityHandlerFlag; //entity_handler_flag_t ;
374 * Possible returned values from client application.
378 OC_STACK_DELETE_TRANSACTION = 0,//!< OC_STACK_DELETE_TRANSACTION
379 OC_STACK_KEEP_TRANSACTION //!< OC_STACK_KEEP_TRANSACTION
380 } OCStackApplicationResult;
382 //-----------------------------------------------------------------------------
383 // Callback function definitions
384 //-----------------------------------------------------------------------------
387 * Client applications implement this callback to consume responses received from Servers.
389 typedef OCStackApplicationResult (* OCClientResponseHandler)(void *context, OCDoHandle handle,
390 OCClientResponse * clientResponse);
393 * Client applications using a context pointer implement this callback to delete the
394 * context upon removal of the callback/context pointer from the internal callback-list.
396 typedef void (* OCClientContextDeleter)(void *context);
399 * This info is passed from application to OC Stack when initiating a request to Server.
404 OCClientResponseHandler cb;
405 OCClientContextDeleter cd;
409 * Application server implementations must implement this callback to consume requests OTA.
410 * Entity handler callback needs to fill the resPayload of the entityHandlerRequest.
412 typedef OCEntityHandlerResult (*OCEntityHandler)
413 (OCEntityHandlerFlag flag, OCEntityHandlerRequest * entityHandlerRequest);
416 * Device Entity handler need to use this call back instead of OCEntityHandler.
418 typedef OCEntityHandlerResult (*OCDeviceEntityHandler)
419 (OCEntityHandlerFlag flag, OCEntityHandlerRequest * entityHandlerRequest, char* uri);
421 //-----------------------------------------------------------------------------
422 // Function prototypes
423 //-----------------------------------------------------------------------------
426 * Initialize the OC Stack. Must be called prior to starting the stack.
429 * IP Address of host device. Deprecated parameter.
431 * Port of host device. Deprecated parameter.
433 * Host device is client, server, or client-server.
435 * @return ::OC_STACK_OK on success, some other value upon failure.
437 OCStackResult OCInit(const char *ipAddr, uint16_t port, OCMode mode);
440 * Stop the OC stack. Use for a controlled shutdown.
442 * Note: OCStop() performs operations similar to OCStopPresence(), as well as OCDeleteResource() on
443 * all resources this server is hosting. OCDeleteResource() performs operations similar to
444 * OCNotifyAllObservers() to notify all client observers that the respective resource is being
447 * @return ::OC_STACK_OK on success, some other value upon failure.
449 OCStackResult OCStop();
452 * Called in main loop of OC client or server. Allows low-level processing of
455 * @return ::OC_STACK_OK on success, some other value upon failure.
457 OCStackResult OCProcess();
460 * Discover or Perform requests on a specified resource (specified by that Resource's respective
463 * @param handle @ref OCDoHandle to refer to the request sent out on behalf of
464 * calling this API. This handle can be used to cancel this operation
465 * via the OCCancel API.
466 * Note: This reference is handled internally, and
467 * should not be free'd by the consumer. A NULL handle is permitted
468 * in the event where the caller has no use for the return value.
469 * @param method @ref OCMethod to perform on the resource.
470 * @param requiredUri URI of the resource to interact with.
471 * @param referenceUri URI of the reference resource.
472 * @param request JSON encoded request.
473 * @param conType @ref OCConnectivityType type of connectivity indicating the
474 * interface. Example: ::OC_WIFI, ::OC_ETHERNET, ::OC_ALL.
475 * @param qos Quality of service. Note that if this API is called on a uri with
476 * the well-known multicast IP address, the qos will be forced to
478 * since it is impractical to send other QOS levels on such addresses.
479 * @param cbData Asynchronous callback function that is invoked
480 * by the stack when discovery or resource interaction is complete.
481 * @param options The address of an array containing the vendor specific
482 * header options to be sent with the request.
483 * @param numOptions Number of header options to be included.
485 * Note: Presence subscription amendments (ie. adding additional resource type filters by calling
486 * this API again) require the use of the same base URI as the original request to successfully
487 * amend the presence filters.
489 * @return ::OC_STACK_OK on success, some other value upon failure.
491 OCStackResult OCDoResource(OCDoHandle *handle, OCMethod method, const char *requiredUri,
492 const char *referenceUri, const char *request, OCConnectivityType conType,
493 OCQualityOfService qos, OCCallbackData *cbData,
494 OCHeaderOption * options, uint8_t numOptions);
497 * Cancel a request associated with a specific @ref OCDoResource invocation.
499 * @param handle - Used to identify a specific OCDoResource invocation.
500 * @param qos - used to specify Quality of Service (read below for more info)
501 * @param options- used to specify vendor specific header options when sending
502 * explicit observe cancellation
503 * @param numOptions- Number of header options to be included
505 * @return ::OC_STACK_OK on success, some other value upon failure.
507 OCStackResult OCCancel(OCDoHandle handle, OCQualityOfService qos, OCHeaderOption * options,
512 * When operating in @ref OCServer or @ref OCClientServer mode, this API will start sending out
513 * presence notifications to clients via multicast. Once this API has been called with a success,
514 * clients may query for this server's presence and this server's stack will respond via multicast.
516 * Server can call this function when it comes online for the first time, or when it comes back
517 * online from offline mode, or when it re enters network.
519 * @param ttl Time To Live in seconds.
520 * Note: If ttl is '0', then the default stack value will be used (60 Seconds).
522 * @return ::OC_STACK_OK on success, some other value upon failure.
524 OCStackResult OCStartPresence(const uint32_t ttl);
527 * When operating in @ref OCServer or @ref OCClientServer mode, this API will stop sending out
528 * presence notifications to clients via multicast. Once this API has been called with a success,
529 * this server's stack will not respond to clients querying for this server's presence.
531 * Server can call this function when it is terminating, going offline, or when going
534 * @return ::OC_STACK_OK on success, some other value upon failure.
537 OCStackResult OCStopPresence();
542 * Set default device entity handler.
544 * @param entityHandler Entity handler function that is called by ocstack to handle requests for
545 * any undefined resources or default actions.
546 * If NULL is passed it removes the device default entity handler.
548 * @return ::OC_STACK_OK on success, some other value upon failure.
550 OCStackResult OCSetDefaultDeviceEntityHandler(OCDeviceEntityHandler entityHandler);
553 * Set device information.
555 * @param deviceInfo Structure passed by the server application containing
556 * the device information.
558 * @return ::OC_STACK_OK on success, some other value upon failure.
560 OCStackResult OCSetDeviceInfo(OCDeviceInfo deviceInfo);
565 * @param handle Pointer to handle to newly created resource. Set by ocstack and
566 * used to refer to resource.
567 * @param resourceTypeName Name of resource type. Example: "core.led".
568 * @param resourceInterfaceName Name of resource interface. Example: "core.rw".
569 * @param uri URI of the resource. Example: "/a/led".
570 * @param entityHandler Entity handler function that is called by ocstack to handle requests, etc.
571 * NULL for default entity handler.
572 * @param resourceProperties Properties supported by resource.
573 * Example: ::OC_DISCOVERABLE|::OC_OBSERVABLE.
575 * @return ::OC_STACK_OK on success, some other value upon failure.
577 OCStackResult OCCreateResource(OCResourceHandle *handle,
578 const char *resourceTypeName,
579 const char *resourceInterfaceName,
581 OCEntityHandler entityHandler,
582 uint8_t resourceProperties);
585 * Create a resource. with host ip address for remote resource.
587 * @param handle Pointer to handle to newly created resource. Set by ocstack.
588 * Used to refer to resource.
589 * @param resourceTypeName Name of resource type. Example: "core.led".
590 * @param resourceInterfaceName Name of resource interface. Example: "core.rw".
591 * @param host HOST address of the remote resource. Example: "coap://xxx.xxx.xxx.xxx:xxxxx".
592 * @param uri URI of the resource. Example: "/a/led".
593 * @param entityHandler Entity handler function that is called by ocstack to handle requests, etc.
594 * NULL for default entity handler.
595 * @param resourceProperties Properties supported by resource.
596 * Example: ::OC_DISCOVERABLE|::OC_OBSERVABLE
598 * @return ::OC_STACK_OK on success, some other value upon failure.
600 OCStackResult OCCreateResourceWithHost(OCResourceHandle *handle,
601 const char *resourceTypeName,
602 const char *resourceInterfaceName,
605 OCEntityHandler entityHandler,
606 uint8_t resourceProperties);
609 * Add a resource to a collection resource.
611 * @param collectionHandle Handle to the collection resource.
612 * @param resourceHandle Handle to resource to be added to the collection resource.
614 * @return ::OC_STACK_OK on success, some other value upon failure.
616 OCStackResult OCBindResource(OCResourceHandle collectionHandle, OCResourceHandle resourceHandle);
619 * Remove a resource from a collection resource.
621 * @param collectionHandle Handle to the collection resource.
622 * @param resourceHandle Handle to resource to be removed from the collection resource.
624 * @return ::OC_STACK_OK on success, some other value upon failure.
626 OCStackResult OCUnBindResource(OCResourceHandle collectionHandle, OCResourceHandle resourceHandle);
629 * Bind a resourcetype to a resource.
631 * @param handle Handle to the resource.
632 * @param resourceTypeName Name of resource type. Example: "core.led".
634 * @return ::OC_STACK_OK on success, some other value upon failure.
636 OCStackResult OCBindResourceTypeToResource(OCResourceHandle handle,
637 const char *resourceTypeName);
639 * Bind a resource interface to a resource.
641 * @param handle Handle to the resource.
642 * @param resourceInterfaceName Name of resource interface. Example: "core.rw".
644 * @return ::OC_STACK_OK on success, some other value upon failure.
646 OCStackResult OCBindResourceInterfaceToResource(OCResourceHandle handle,
647 const char *resourceInterfaceName);
650 * Bind an entity handler to the resource.
652 * @param handle Handle to the resource that the contained resource is to be bound.
653 * @param entityHandler Entity handler function that is called by ocstack to handle requests, etc.
654 * @return ::OC_STACK_OK on success, some other value upon failure.
656 OCStackResult OCBindResourceHandler(OCResourceHandle handle, OCEntityHandler entityHandler);
659 * Get the number of resources that have been created in the stack.
661 * @param numResources Pointer to count variable.
663 * @return ::OC_STACK_OK on success, some other value upon failure.
665 OCStackResult OCGetNumberOfResources(uint8_t *numResources);
668 * Get a resource handle by index.
670 * @param index Index of resource, 0 to Count - 1.
672 * @return Found resource handle or NULL if not found.
674 OCResourceHandle OCGetResourceHandle(uint8_t index);
677 * Delete resource specified by handle. Deletes resource and all resourcetype and resourceinterface
680 * Note: OCDeleteResource() performs operations similar to OCNotifyAllObservers() to notify all
681 * client observers that "this" resource is being deleted.
683 * @param handle Handle of resource to be deleted.
685 * @return ::OC_STACK_OK on success, some other value upon failure.
687 OCStackResult OCDeleteResource(OCResourceHandle handle);
690 * Get the URI of the resource specified by handle.
692 * @param handle Handle of resource.
693 * @return URI string if resource found or NULL if not found.
695 const char *OCGetResourceUri(OCResourceHandle handle);
698 * Get the properties of the resource specified by handle.
699 * NOTE: that after a resource is created, the OC_ACTIVE property is set
700 * for the resource by the stack.
702 * @param handle Handle of resource.
703 * @return OCResourceProperty Bitmask or -1 if resource is not found.
705 OCResourceProperty OCGetResourceProperties(OCResourceHandle handle);
708 * Get the number of resource types of the resource.
710 * @param handle Handle of resource.
711 * @param numResourceTypes Pointer to count variable.
713 * @return ::OC_STACK_OK on success, some other value upon failure.
715 OCStackResult OCGetNumberOfResourceTypes(OCResourceHandle handle, uint8_t *numResourceTypes);
718 * Get name of resource type of the resource.
720 * @param handle Handle of resource.
721 * @param index Index of resource, 0 to Count - 1.
723 * @return Resource type name if resource found or NULL if resource not found.
725 const char *OCGetResourceTypeName(OCResourceHandle handle, uint8_t index);
728 * Get the number of resource interfaces of the resource.
730 * @param handle Handle of resource.
731 * @param numResourceInterfaces Pointer to count variable.
733 * @return ::OC_STACK_OK on success, some other value upon failure.
735 OCStackResult OCGetNumberOfResourceInterfaces(OCResourceHandle handle,
736 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.
744 * @return Resource interface name if resource found or NULL if resource not found.
746 const char *OCGetResourceInterfaceName(OCResourceHandle handle, uint8_t index);
749 * Get methods of resource interface of the resource.
751 * @param handle Handle of resource.
752 * @param index Index of resource, 0 to Count - 1.
754 * @return Allowed methods if resource found or NULL if resource not found.
756 uint8_t OCGetResourceInterfaceAllowedMethods(OCResourceHandle handle, uint8_t index);
759 * Get resource handle from the collection resource by index.
761 * @param collectionHandle Handle of collection resource.
762 * @param index Index of contained resource, 0 to Count - 1.
764 * @return Handle to contained resource if resource found or NULL if resource not found.
766 OCResourceHandle OCGetResourceHandleFromCollection(OCResourceHandle collectionHandle,
770 * Get the entity handler for a resource.
772 * @param handle Handle of resource.
774 * @return Entity handler if resource found or NULL resource not found.
776 OCEntityHandler OCGetResourceHandler(OCResourceHandle handle);
779 * Notify all registered observers that the resource representation has
780 * changed. If observation includes a query the client is notified only
781 * if the query is valid after the resource representation has changed.
783 * @param handle Handle of resource.
784 * @param qos Desired quality of service for the observation notifications.
786 * @return ::OC_STACK_OK on success, some other value upon failure.
788 OCStackResult OCNotifyAllObservers(OCResourceHandle handle, OCQualityOfService qos);
791 * Notify specific observers with updated value of representation.
792 * Before this API is invoked by entity handler it has finished processing
793 * queries for the associated observers.
795 * @param handle Handle of resource.
796 * @param obsIdList List of observation ids that need to be notified.
797 * @param numberOfIds Number of observation ids included in obsIdList.
798 * @param notificationJSONPayload JSON encoded payload to send in notification.
799 * @param qos Desired quality of service of the observation notifications.
800 * NOTE: The memory for obsIdList and notificationJSONPayload is managed by the
801 * entity invoking the API. The maximum size of the notification is 1015 bytes
802 * for non-Arduino platforms. For Arduino the maximum size is 247 bytes.
804 * @return ::OC_STACK_OK on success, some other value upon failure.
807 OCNotifyListOfObservers (OCResourceHandle handle,
808 OCObservationId *obsIdList,
810 const char *notificationJSONPayload,
811 OCQualityOfService qos);
815 * Send a response to a request.
816 * The response can be a normal, slow, or block (i.e. a response that
817 * is too large to be sent in a single PDU and must span multiple transmissions).
819 * @param response Pointer to structure that contains response parameters.
821 * @return ::OC_STACK_OK on success, some other value upon failure.
823 OCStackResult OCDoResponse(OCEntityHandlerResponse *response);
826 * Cancel a response. Applies to a block response.
828 * @param responseHandle Response handle set by stack in OCServerResponse after
829 * OCDoResponse is called.
831 * @return ::OC_STACK_OK on success, some other value upon failure.
833 OCStackResult OCCancelResponse(OCResponseHandle responseHandle);
838 * This method is used to retrieved the IPv4 address from OCDev address
841 * @param ipAddr OCDevAddr address.
842 * @param a first byte of IPv4 address.
843 * @param b second byte of IPv4 address.
844 * @param c third byte of IPv4 address.
845 * @param d fourth byte of IPv4 address.
846 * @return ::OC_STACK_OK on success, some other value upon failure.
848 int32_t OCDevAddrToIPv4Addr(OCDevAddr *ipAddr, uint8_t *a, uint8_t *b,
849 uint8_t *c, uint8_t *d );
852 * This method is used to retrieve the port number from OCDev address
855 * @param ipAddr OCDevAddr address.
856 * @param port Port number.
857 * @return ::OC_STACK_OK on success, some other value upon failure.
859 int32_t OCDevAddrToPort(OCDevAddr *ipAddr, uint16_t *port);
863 #endif // __cplusplus
865 #endif /* OCSTACK_H_ */