LWM2M Weather Station
Dependencies: EthernetInterfaceUpdate mbed-rtos mbed nanoservice_client_1_12_X
resources/temperature.cpp@3:12c28025d4a4, 2015-04-13 (annotated)
- Committer:
- michaeljkoster
- Date:
- Mon Apr 13 22:13:56 2015 +0000
- Revision:
- 3:12c28025d4a4
- Parent:
- 0:2b74e0fc583d
updated NSDL-C
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
michaeljkoster | 0:2b74e0fc583d | 1 | // IPSO Temperature sensor resource implementation |
michaeljkoster | 0:2b74e0fc583d | 2 | |
michaeljkoster | 0:2b74e0fc583d | 3 | #include "mbed.h" |
michaeljkoster | 0:2b74e0fc583d | 4 | #include "nsdl_support.h" |
michaeljkoster | 0:2b74e0fc583d | 5 | |
michaeljkoster | 0:2b74e0fc583d | 6 | #define TEMPERATURE_RES_ID "3303/0/5700" |
michaeljkoster | 0:2b74e0fc583d | 7 | #define TEMPERATURE_RES_RT "urn:X-ipso:temperature" |
michaeljkoster | 0:2b74e0fc583d | 8 | |
michaeljkoster | 0:2b74e0fc583d | 9 | extern Serial pc; |
michaeljkoster | 0:2b74e0fc583d | 10 | uint8_t temperature_max_age = 0; |
michaeljkoster | 0:2b74e0fc583d | 11 | uint8_t temperature_content_type = 50; |
michaeljkoster | 0:2b74e0fc583d | 12 | |
michaeljkoster | 0:2b74e0fc583d | 13 | float temperature_reading; |
michaeljkoster | 0:2b74e0fc583d | 14 | char temperature_string[6]; |
michaeljkoster | 0:2b74e0fc583d | 15 | |
michaeljkoster | 0:2b74e0fc583d | 16 | /* Only GET method allowed */ |
michaeljkoster | 0:2b74e0fc583d | 17 | static uint8_t temperature_resource_cb(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto) |
michaeljkoster | 0:2b74e0fc583d | 18 | { |
michaeljkoster | 0:2b74e0fc583d | 19 | sn_coap_hdr_s *coap_res_ptr = 0; |
michaeljkoster | 0:2b74e0fc583d | 20 | |
michaeljkoster | 0:2b74e0fc583d | 21 | if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_GET) |
michaeljkoster | 0:2b74e0fc583d | 22 | { |
michaeljkoster | 0:2b74e0fc583d | 23 | sprintf(temperature_string,"%3.1f", temperature_reading); |
michaeljkoster | 0:2b74e0fc583d | 24 | pc.printf("temperature: %s\r\n", temperature_string); |
michaeljkoster | 0:2b74e0fc583d | 25 | |
michaeljkoster | 0:2b74e0fc583d | 26 | coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT); |
michaeljkoster | 0:2b74e0fc583d | 27 | |
michaeljkoster | 0:2b74e0fc583d | 28 | coap_res_ptr->payload_len = strlen(temperature_string); |
michaeljkoster | 0:2b74e0fc583d | 29 | coap_res_ptr->payload_ptr = (uint8_t*)temperature_string; |
michaeljkoster | 0:2b74e0fc583d | 30 | |
michaeljkoster | 0:2b74e0fc583d | 31 | coap_res_ptr->content_type_ptr = &temperature_content_type; |
michaeljkoster | 0:2b74e0fc583d | 32 | coap_res_ptr->content_type_len = sizeof(temperature_content_type); |
michaeljkoster | 0:2b74e0fc583d | 33 | |
michaeljkoster | 0:2b74e0fc583d | 34 | coap_res_ptr->options_list_ptr = (sn_coap_options_list_s*)nsdl_alloc(sizeof(sn_coap_options_list_s)); |
michaeljkoster | 0:2b74e0fc583d | 35 | if(!coap_res_ptr->options_list_ptr) |
michaeljkoster | 0:2b74e0fc583d | 36 | { |
michaeljkoster | 0:2b74e0fc583d | 37 | pc.printf("cant alloc option list for max-age\r\n"); |
michaeljkoster | 0:2b74e0fc583d | 38 | coap_res_ptr->options_list_ptr = NULL; //FIXME report error and recover |
michaeljkoster | 0:2b74e0fc583d | 39 | } |
michaeljkoster | 0:2b74e0fc583d | 40 | memset(coap_res_ptr->options_list_ptr, 0, sizeof(sn_coap_options_list_s)); |
michaeljkoster | 0:2b74e0fc583d | 41 | coap_res_ptr->options_list_ptr->max_age_ptr = &temperature_max_age; |
michaeljkoster | 0:2b74e0fc583d | 42 | coap_res_ptr->options_list_ptr->max_age_len = sizeof(temperature_max_age); |
michaeljkoster | 0:2b74e0fc583d | 43 | |
michaeljkoster | 0:2b74e0fc583d | 44 | sn_nsdl_send_coap_message(address, coap_res_ptr); |
michaeljkoster | 0:2b74e0fc583d | 45 | nsdl_free(coap_res_ptr->options_list_ptr); |
michaeljkoster | 0:2b74e0fc583d | 46 | coap_res_ptr->options_list_ptr = NULL; |
michaeljkoster | 0:2b74e0fc583d | 47 | coap_res_ptr->content_type_ptr = NULL;// parser_release below tries to free this memory |
michaeljkoster | 0:2b74e0fc583d | 48 | |
michaeljkoster | 0:2b74e0fc583d | 49 | } |
michaeljkoster | 0:2b74e0fc583d | 50 | |
michaeljkoster | 0:2b74e0fc583d | 51 | sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr); |
michaeljkoster | 0:2b74e0fc583d | 52 | |
michaeljkoster | 0:2b74e0fc583d | 53 | return 0; |
michaeljkoster | 0:2b74e0fc583d | 54 | } |
michaeljkoster | 0:2b74e0fc583d | 55 | |
michaeljkoster | 0:2b74e0fc583d | 56 | int create_temperature_resource(sn_nsdl_resource_info_s *resource_ptr) |
michaeljkoster | 0:2b74e0fc583d | 57 | { |
michaeljkoster | 0:2b74e0fc583d | 58 | nsdl_create_dynamic_resource(resource_ptr, sizeof(TEMPERATURE_RES_ID)-1, (uint8_t*)TEMPERATURE_RES_ID, sizeof(TEMPERATURE_RES_RT)-1, (uint8_t*)TEMPERATURE_RES_RT, 0, &temperature_resource_cb, (SN_GRS_GET_ALLOWED)); |
michaeljkoster | 0:2b74e0fc583d | 59 | return 0; |
michaeljkoster | 0:2b74e0fc583d | 60 | } |