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25 * This file contains APIs for OIC Stack to be implemented.
39 /** Macro to use Random port.*/
40 #define USE_RANDOM_PORT (0)
47 * This function Initializes the OC Stack. Must be called prior to starting the stack.
49 * @param mode OCMode Host device is client, server, or client-server.
50 * @param serverFlags OCTransportFlags Default server transport flags.
51 * @param clientFlags OCTransportFlags Default client transport flags.
53 * @return ::OC_STACK_OK on success, some other value upon failure.
55 OCStackResult OCInit1(OCMode mode, OCTransportFlags serverFlags, OCTransportFlags clientFlags);
58 * This function Initializes the OC Stack. Must be called prior to starting the stack.
60 * @param ipAddr IP Address of host device. Deprecated parameter.
61 * @param port Port of host device. Deprecated parameter.
62 * @param mode OCMode Host device is client, server, or client-server.
64 * @return ::OC_STACK_OK on success, some other value upon failure.
66 OCStackResult OCInit(const char *ipAddr, uint16_t port, OCMode mode);
70 * @brief Set Remote Access information for XMPP Client.
71 * @param raInfo [IN] remote access info.
73 * @return #CA_STATUS_OK
75 OCStackResult OCSetRAInfo(const OCRAInfo_t *raInfo);
79 * This function Stops the OC stack. Use for a controlled shutdown.
81 * @note: OCStop() performs operations similar to OCStopPresence(), as well as OCDeleteResource() on
82 * all resources this server is hosting. OCDeleteResource() performs operations similar to
83 * OCNotifyAllObservers() to notify all client observers that the respective resource is being
86 * @return ::OC_STACK_OK on success, some other value upon failure.
88 OCStackResult OCStop();
91 * This function starts receiving the multicast traffic. This can be only called
92 * when stack is in OC_STACK_INITIALIZED state but device is not receiving multicast
95 * @return ::OC_STACK_OK on success, some other value upon failure.
97 OCStackResult OCStartMulticastServer();
100 * This function stops receiving the multicast traffic. The rest of the stack
101 * keeps working and no resource are deleted. Device can still receive the unicast
102 * traffic. Once this is set, no response to multicast /oic/res will be sent by the
103 * device. This is to be used for devices that uses other entity to push resources.
105 * @return ::OC_STACK_OK on success, some other value upon failure.
107 OCStackResult OCStopMulticastServer();
110 * This function is Called in main loop of OC client or server.
111 * Allows low-level processing of stack services.
113 * @return ::OC_STACK_OK on success, some other value upon failure.
115 OCStackResult OCProcess();
118 * This function discovers or Perform requests on a specified resource
119 * (specified by that Resource's respective URI).
121 * @param handle To refer to the request sent out on behalf of
122 * calling this API. This handle can be used to cancel this operation
123 * via the OCCancel API.
124 * @note: This reference is handled internally, and should not be free'd by
125 * the consumer. A NULL handle is permitted in the event where the caller
126 * has no use for the return value.
127 * @param method To perform on the resource.
128 * @param requestUri URI of the resource to interact with. (Address prefix is deprecated in
129 * favor of destination.)
130 * @param destination Complete description of destination.
131 * @param payload Encoded request payload.
132 * @param connectivityType Modifier flags when destination is not given.
133 * @param qos Quality of service. Note that if this API is called on a uri with the
134 * well-known multicast IP address, the qos will be forced to ::OC_LOW_QOS
135 * since it is impractical to send other QOS levels on such addresses.
136 * @param cbData Asynchronous callback function that is invoked by the stack when
137 * discovery or resource interaction is complete.
138 * @param options The address of an array containing the vendor specific header options
139 * to be sent with the request.
140 * @param numOptions Number of header options to be included.
142 * @note: Presence subscription amendments (i.e. adding additional resource type filters by calling
143 * this API again) require the use of the same base URI as the original request to successfully
144 * amend the presence filters.
146 * @return ::OC_STACK_OK on success, some other value upon failure.
148 OCStackResult OCDoResource(OCDoHandle *handle,
150 const char *requestUri,
151 const OCDevAddr *destination,
153 OCConnectivityType connectivityType,
154 OCQualityOfService qos,
155 OCCallbackData *cbData,
156 OCHeaderOption *options,
159 * This function cancels a request associated with a specific @ref OCDoResource invocation.
161 * @param handle Used to identify a specific OCDoResource invocation.
162 * @param qos Used to specify Quality of Service(read below).
163 * @param options Used to specify vendor specific header options when sending
164 * explicit observe cancellation.
165 * @param numOptions Number of header options to be included.
167 * @return ::OC_STACK_OK on success, some other value upon failure.
169 OCStackResult OCCancel(OCDoHandle handle, OCQualityOfService qos, OCHeaderOption * options,
173 * Register Persistent storage callback.
174 * @param persistentStorageHandler Pointers to open, read, write, close & unlink handlers.
177 * OC_STACK_OK No errors; Success.
178 * OC_STACK_INVALID_PARAM Invalid parameter.
180 OCStackResult OCRegisterPersistentStorageHandler(OCPersistentStorage* persistentStorageHandler);
184 * When operating in OCServer or OCClientServer mode,
185 * this API will start sending out presence notifications to clients via multicast.
186 * Once this API has been called with a success, clients may query for this server's presence and
187 * this server's stack will respond via multicast.
189 * Server can call this function when it comes online for the first time, or when it comes back
190 * online from offline mode, or when it re enters network.
192 * @param ttl Time To Live in seconds.
193 * @note: If ttl is '0', then the default stack value will be used (60 Seconds).
194 * If ttl is greater than ::OC_MAX_PRESENCE_TTL_SECONDS, then the ttl will be
195 * set to ::OC_MAX_PRESENCE_TTL_SECONDS.
197 * @return ::OC_STACK_OK on success, some other value upon failure.
199 OCStackResult OCStartPresence(const uint32_t ttl);
202 * When operating in OCServer or OCClientServer mode, this API will stop sending
203 * out presence notifications to clients via multicast.
204 * Once this API has been called with a success this server's stack will not respond to clients
205 * querying for this server's presence.
207 * Server can call this function when it is terminating, going offline, or when going
210 * @return ::OC_STACK_OK on success, some other value upon failure.
213 OCStackResult OCStopPresence();
218 * This function sets default device entity handler.
220 * @param entityHandler Entity handler function that is called by ocstack to handle requests
221 * for any undefined resources or default actions.If NULL is passed it
222 * removes the device default entity handler.
223 * @param callbackParameter Parameter passed back when entityHandler is called.
225 * @return ::OC_STACK_OK on success, some other value upon failure.
227 OCStackResult OCSetDefaultDeviceEntityHandler(OCDeviceEntityHandler entityHandler, void* callbackParameter);
230 * This function sets device information.
232 * @param deviceInfo Structure passed by the server application containing the device information.
235 * ::OC_STACK_OK no errors.
236 * ::OC_STACK_INVALID_PARAM invalid parameter.
237 * ::OC_STACK_ERROR stack process error.
239 OCStackResult OCSetDeviceInfo(OCDeviceInfo deviceInfo);
242 * This function sets platform information.
244 * @param platformInfo Structure passed by the server application containing
245 * the platform information.
249 * ::OC_STACK_OK no errors.
250 * ::OC_STACK_INVALID_PARAM invalid parameter.
251 * ::OC_STACK_ERROR stack process error.
253 OCStackResult OCSetPlatformInfo(OCPlatformInfo platformInfo);
256 * This function creates a resource.
258 * @param handle Pointer to handle to newly created resource. Set by ocstack and
259 * used to refer to resource.
260 * @param resourceTypeName Name of resource type. Example: "core.led".
261 * @param resourceInterfaceName Name of resource interface. Example: "core.rw".
262 * @param uri URI of the resource. Example: "/a/led".
263 * @param entityHandler Entity handler function that is called by ocstack to handle
265 * NULL for default entity handler.
266 * @param callbackParam parameter passed back when entityHandler is called.
267 * @param resourceProperties Properties supported by resource.
268 * Example: ::OC_DISCOVERABLE|::OC_OBSERVABLE.
270 * @return ::OC_STACK_OK on success, some other value upon failure.
272 OCStackResult OCCreateResource(OCResourceHandle *handle,
273 const char *resourceTypeName,
274 const char *resourceInterfaceName,
276 OCEntityHandler entityHandler,
278 uint8_t resourceProperties);
282 * This function adds a resource to a collection resource.
284 * @param collectionHandle Handle to the collection resource.
285 * @param resourceHandle Handle to resource to be added to the collection resource.
287 * @return ::OC_STACK_OK on success, some other value upon failure.
289 OCStackResult OCBindResource(OCResourceHandle collectionHandle, OCResourceHandle resourceHandle);
292 * This function removes a resource from a collection resource.
294 * @param collectionHandle Handle to the collection resource.
295 * @param resourceHandle Handle to resource to be removed from the collection resource.
297 * @return ::OC_STACK_OK on success, some other value upon failure.
299 OCStackResult OCUnBindResource(OCResourceHandle collectionHandle, OCResourceHandle resourceHandle);
302 * This function binds a resource type to a resource.
304 * @param handle Handle to the resource.
305 * @param resourceTypeName Name of resource type. Example: "core.led".
307 * @return ::OC_STACK_OK on success, some other value upon failure.
309 OCStackResult OCBindResourceTypeToResource(OCResourceHandle handle,
310 const char *resourceTypeName);
312 * This function binds a resource interface to a resource.
314 * @param handle Handle to the resource.
315 * @param resourceInterfaceName Name of resource interface. Example: "core.rw".
317 * @return ::OC_STACK_OK on success, some other value upon failure.
319 OCStackResult OCBindResourceInterfaceToResource(OCResourceHandle handle,
320 const char *resourceInterfaceName);
323 * This function binds an entity handler to the resource.
325 * @param handle Handle to the resource that the contained resource is to be bound.
326 * @param entityHandler Entity handler function that is called by ocstack to handle requests.
327 * @param callbackParameter Context parameter that will be passed to entityHandler.
329 * @return ::OC_STACK_OK on success, some other value upon failure.
331 OCStackResult OCBindResourceHandler(OCResourceHandle handle, OCEntityHandler entityHandler,
332 void *callbackParameter);
335 * This function gets the number of resources that have been created in the stack.
337 * @param numResources Pointer to count variable.
339 * @return ::OC_STACK_OK on success, some other value upon failure.
341 OCStackResult OCGetNumberOfResources(uint8_t *numResources);
344 * This function gets a resource handle by index.
346 * @param index Index of resource, 0 to Count - 1.
348 * @return Found resource handle or NULL if not found.
350 OCResourceHandle OCGetResourceHandle(uint8_t index);
353 * This function deletes resource specified by handle. Deletes resource and all
354 * resource type and resource interface linked lists.
356 * @note: OCDeleteResource() performs operations similar to OCNotifyAllObservers() to notify all
357 * client observers that "this" resource is being deleted.
359 * @param handle Handle of resource to be deleted.
361 * @return ::OC_STACK_OK on success, some other value upon failure.
363 OCStackResult OCDeleteResource(OCResourceHandle handle);
366 * Get a string representation the server instance ID.
367 * The memory is managed internal to this function, so freeing externally will result
368 * in a runtime error.
369 * Note: This will NOT seed the RNG, so it must be called after the RNG is seeded.
370 * This is done automatically during the OCInit process,
371 * so ensure that this call is done after that.
373 * @return A string representation the server instance ID.
375 const char* OCGetServerInstanceIDString(void);
378 * This function gets the URI of the resource specified by handle.
380 * @param handle Handle of resource.
382 * @return URI string if resource found or NULL if not found.
384 const char *OCGetResourceUri(OCResourceHandle handle);
387 * This function gets the properties of the resource specified by handle.
389 * @param handle Handle of resource.
391 * @return OCResourceProperty Bitmask or -1 if resource is not found.
393 * @note that after a resource is created, the OC_ACTIVE property is set for the resource by the
396 OCResourceProperty OCGetResourceProperties(OCResourceHandle handle);
399 * This function gets the number of resource types of the resource.
401 * @param handle Handle of resource.
402 * @param numResourceTypes Pointer to count variable.
404 * @return ::OC_STACK_OK on success, some other value upon failure.
406 OCStackResult OCGetNumberOfResourceTypes(OCResourceHandle handle, uint8_t *numResourceTypes);
409 * This function gets name of resource type of the resource.
411 * @param handle Handle of resource.
412 * @param index Index of resource, 0 to Count - 1.
414 * @return Resource type name if resource found or NULL if resource not found.
416 const char *OCGetResourceTypeName(OCResourceHandle handle, uint8_t index);
419 * This function gets the number of resource interfaces of the resource.
421 * @param handle Handle of resource.
422 * @param numResourceInterfaces Pointer to count variable.
424 * @return ::OC_STACK_OK on success, some other value upon failure.
426 OCStackResult OCGetNumberOfResourceInterfaces(OCResourceHandle handle,
427 uint8_t *numResourceInterfaces);
430 * This function gets name of resource interface of the resource.
432 * @param handle Handle of resource.
433 * @param index Index of resource, 0 to Count - 1.
435 * @return Resource interface name if resource found or NULL if resource not found.
437 const char *OCGetResourceInterfaceName(OCResourceHandle handle, uint8_t index);
440 * This function gets methods of resource interface of the resource.
442 * @param handle Handle of resource.
443 * @param index Index of resource, 0 to Count - 1.
445 * @return Allowed methods if resource found or NULL if resource not found.
447 uint8_t OCGetResourceInterfaceAllowedMethods(OCResourceHandle handle, uint8_t index);
450 * This function gets resource handle from the collection resource by index.
452 * @param collectionHandle Handle of collection resource.
453 * @param index Index of contained resource, 0 to Count - 1.
455 * @return Handle to contained resource if resource found or NULL if resource not found.
457 OCResourceHandle OCGetResourceHandleFromCollection(OCResourceHandle collectionHandle,
461 * This function gets the entity handler for a resource.
463 * @param handle Handle of resource.
465 * @return Entity handler if resource found or NULL resource not found.
467 OCEntityHandler OCGetResourceHandler(OCResourceHandle handle);
470 * This function notify all registered observers that the resource representation has
471 * changed. If observation includes a query the client is notified only if the query is valid after
472 * the resource representation has changed.
474 * @param handle Handle of resource.
475 * @param qos Desired quality of service for the observation notifications.
477 * @return ::OC_STACK_OK on success, some other value upon failure.
479 OCStackResult OCNotifyAllObservers(OCResourceHandle handle, OCQualityOfService qos);
482 * Notify specific observers with updated value of representation.
483 * Before this API is invoked by entity handler it has finished processing
484 * queries for the associated observers.
486 * @param handle Handle of resource.
487 * @param obsIdList List of observation IDs that need to be notified.
488 * @param numberOfIds Number of observation IDs included in obsIdList.
489 * @param payload Object representing the notification
490 * @param qos Desired quality of service of the observation notifications.
492 * @note: The memory for obsIdList and payload is managed by the entity invoking the API.
493 * The maximum size of the notification is 1015 bytes for non-Arduino platforms. For Arduino
494 * the maximum size is 247 bytes.
496 * @return ::OC_STACK_OK on success, some other value upon failure.
499 OCNotifyListOfObservers (OCResourceHandle handle,
500 OCObservationId *obsIdList,
502 const OCRepPayload *payload,
503 OCQualityOfService qos);
507 * This function sends a response to a request.
508 * The response can be a normal, slow, or block (i.e. a response that
509 * is too large to be sent in a single PDU and must span multiple transmissions).
511 * @param response Pointer to structure that contains response parameters.
513 * @return ::OC_STACK_OK on success, some other value upon failure.
515 OCStackResult OCDoResponse(OCEntityHandlerResponse *response);
519 #endif // __cplusplus
521 #endif /* OCSTACK_H_ */