Michael Koster / mbedConnectorInterface_custom

custom for >5 resources

Fork of mbedConnectorInterface by Doug Anson

api/InstancePointerTableHelper.h@0:b438482ebbfc, 2015-01-27 (annotated)

Committer:
ansond
Date:
Tue Jan 27 22:23:51 2015 +0000
Revision:
0:b438482ebbfc
Child:
2:853f9ecc12df
initial check in

Who changed what in which revision?

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ansond 0:b438482ebbfc 1 /**
ansond 0:b438482ebbfc 2 * @file InstancePointerTableHelper.h
ansond 0:b438482ebbfc 3 * @brief instance pointer table helper functions for DynamicResource
ansond 0:b438482ebbfc 4 * @author Doug Anson
ansond 0:b438482ebbfc 5 * @version 1.0
ansond 0:b438482ebbfc 6 * @see
ansond 0:b438482ebbfc 7 *
ansond 0:b438482ebbfc 8 * Copyright (c) 2014
ansond 0:b438482ebbfc 9 *
ansond 0:b438482ebbfc 10 * Licensed under the Apache License, Version 2.0 (the "License");
ansond 0:b438482ebbfc 11 * you may not use this file except in compliance with the License.
ansond 0:b438482ebbfc 12 * You may obtain a copy of the License at
ansond 0:b438482ebbfc 13 *
ansond 0:b438482ebbfc 14 * http://www.apache.org/licenses/LICENSE-2.0
ansond 0:b438482ebbfc 15 *
ansond 0:b438482ebbfc 16 * Unless required by applicable law or agreed to in writing, software
ansond 0:b438482ebbfc 17 * distributed under the License is distributed on an "AS IS" BASIS,
ansond 0:b438482ebbfc 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ansond 0:b438482ebbfc 19 * See the License for the specific language governing permissions and
ansond 0:b438482ebbfc 20 * limitations under the License.
ansond 0:b438482ebbfc 21 */
ansond 0:b438482ebbfc 22
ansond 0:b438482ebbfc 23 #ifndef __INSTANCE_POINTER_TABLE_HELPER_H__
ansond 0:b438482ebbfc 24 #define __INSTANCE_POINTER_TABLE_HELPER_H__
ansond 0:b438482ebbfc 25
ansond 0:b438482ebbfc 26 // InstancePointerTable
ansond 0:b438482ebbfc 27 #include "InstancePointerTable.h"
ansond 0:b438482ebbfc 28 extern Logger logger;
ansond 0:b438482ebbfc 29 InstancePointerTable __nsdl_lookup_table(&logger); // Instance Pointer Table
ansond 0:b438482ebbfc 30
ansond 0:b438482ebbfc 31
ansond 0:b438482ebbfc 32 // lookup a DynamicResource instance indexed by our resource URI as the key
ansond 0:b438482ebbfc 33 extern "C" DynamicResource *__lookup_instance_pointer(const char *uri,const int uri_length) {
ansond 0:b438482ebbfc 34 if (uri != NULL && uri_length > 0) {
ansond 0:b438482ebbfc 35 string key(uri,uri_length);
ansond 0:b438482ebbfc 36 return (DynamicResource *)__nsdl_lookup_table.get(key);
ansond 0:b438482ebbfc 37 }
ansond 0:b438482ebbfc 38 return NULL;
ansond 0:b438482ebbfc 39 }
ansond 0:b438482ebbfc 40
ansond 0:b438482ebbfc 41 // callback function for NSDL library to call into... ASSUMPTION: 1 and only 1 DynamicResource<> instance per Resource URI...
ansond 0:b438482ebbfc 42 extern "C" uint8_t ipt_helper_nsdl_callback_stub(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto) {
ansond 0:b438482ebbfc 43 uint8_t status = 1;
ansond 0:b438482ebbfc 44 if (received_coap_ptr != NULL) {
ansond 0:b438482ebbfc 45 // retrieve our resource instance via lookup/index by our resource URI
ansond 0:b438482ebbfc 46 DynamicResource *instance = __lookup_instance_pointer((const char *)received_coap_ptr->uri_path_ptr,received_coap_ptr->uri_path_len);
ansond 0:b438482ebbfc 47 if (instance != NULL) {
ansond 0:b438482ebbfc 48 std::printf("Instance retrieved.. processing callback...\r\n");
ansond 0:b438482ebbfc 49 status = instance->process(received_coap_ptr,address,proto);
ansond 0:b438482ebbfc 50 }
ansond 0:b438482ebbfc 51 else {
ansond 0:b438482ebbfc 52 std::printf("Unable to process callback: unable to lookup DynamicResource<> instance pointer... ignorning...\r\n");
ansond 0:b438482ebbfc 53 }
ansond 0:b438482ebbfc 54 }
ansond 0:b438482ebbfc 55 else {
ansond 0:b438482ebbfc 56 std::printf("Unable to process callback: received coap pointer is NULL... ignoring...\r\n");
ansond 0:b438482ebbfc 57 }
ansond 0:b438482ebbfc 58 return status;
ansond 0:b438482ebbfc 59 }
ansond 0:b438482ebbfc 60
ansond 0:b438482ebbfc 61 // add a instance pointer to our lookup table keyed by the key
ansond 0:b438482ebbfc 62 extern "C" void ipt_helper_add_instance_pointer(const string *key,DynamicResource *instance) {
ansond 0:b438482ebbfc 63 __nsdl_lookup_table.add(*key,instance);
ansond 0:b438482ebbfc 64 if (key != NULL) delete key;
ansond 0:b438482ebbfc 65 }
ansond 0:b438482ebbfc 66
ansond 0:b438482ebbfc 67 #endif // __INSTANCE_POINTER_TABLE_HELPER_H__