Project with example IPSO resources for LED bar, Gas Sensor, and Light Sensor
Dependencies: EthernetInterface LED_Bar mbed-rtos mbed nsdl_lib
resources/IPSO_presence.cpp
- Committer:
- michaeljkoster
- Date:
- 2014-10-25
- Revision:
- 6:4fa917ca6aa4
- Parent:
- 5:3fa1d1f8b3f8
- Child:
- 7:3f52b52ef2ad
File content as of revision 6:4fa917ca6aa4:
// IPSO Presence sensor resource implementation #include "mbed.h" #include "rtos.h" #include "nsdl_support.h" #define PRESENCE_RES_ID "3302/0/5500" #define PRESENCE_RES_RT "urn:X-ipso:presence" extern Serial pc; uint8_t presence_max_age = 0; uint8_t presence_content_type = 50; static uint8_t pres_obs_number = 0; static uint8_t *pres_obs_token_ptr = NULL; static uint8_t pres_obs_token_len = 0; DigitalIn presenceSensor(D2); bool presence = 0; bool last_presence = 0; char presenceString[2]; static void pres_observe_thread(void const *args) { //int32_t time = 0; while (true) { wait(.1); //time++; //sn_nsdl_exec(time); presence = presenceSensor.read(); if((presence != last_presence) && pres_obs_number != 0 && pres_obs_token_ptr != NULL) { last_presence = presence; pres_obs_number++; sprintf(presenceString,"%d", presence); if(sn_nsdl_send_observation_notification(pres_obs_token_ptr, pres_obs_token_len, (uint8_t*)presenceString, sizeof((uint8_t*)presenceString)-1, &pres_obs_number, 1, COAP_MSG_TYPE_NON_CONFIRMABLE, 0) == 0) pc.printf("Presence observation sending failed\r\n"); else pc.printf("Presence observation\r\n"); } } } /* Only GET method allowed */ static uint8_t presence_resource_cb(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s * proto) { sn_coap_hdr_s *coap_res_ptr = 0; presence = presenceSensor.read(); sprintf(presenceString,"%d", presence); pc.printf("presence callback\r\n"); pc.printf("presence state %s\r\n", presenceString); if(received_coap_ptr->msg_code == COAP_MSG_CODE_REQUEST_GET) { coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT); coap_res_ptr->payload_len = strlen(presenceString); coap_res_ptr->payload_ptr = (uint8_t*)presenceString; coap_res_ptr->content_type_ptr = &presence_content_type; coap_res_ptr->content_type_len = sizeof(presence_content_type); coap_res_ptr->options_list_ptr = (sn_coap_options_list_s*)nsdl_alloc(sizeof(sn_coap_options_list_s)); if(!coap_res_ptr->options_list_ptr) { pc.printf("cant alloc option list\r\n"); coap_res_ptr->options_list_ptr = NULL; //FIXME report error and recover } memset(coap_res_ptr->options_list_ptr, 0, sizeof(sn_coap_options_list_s)); coap_res_ptr->options_list_ptr->max_age_ptr = &presence_max_age; coap_res_ptr->options_list_ptr->max_age_len = sizeof(presence_max_age); if(received_coap_ptr->token_ptr) { pc.printf("Token included\r\n"); if(pres_obs_token_ptr) { free(pres_obs_token_ptr); pres_obs_token_ptr = 0; } pres_obs_token_ptr = (uint8_t*)malloc(received_coap_ptr->token_len); if(pres_obs_token_ptr) { memcpy(pres_obs_token_ptr, received_coap_ptr->token_ptr, received_coap_ptr->token_len); pres_obs_token_len = received_coap_ptr->token_len; } } if(received_coap_ptr->options_list_ptr->observe) { //coap_res_ptr->options_list_ptr = (sn_coap_options_list_s*)malloc(sizeof(sn_coap_options_list_s)); //memset(coap_res_ptr->options_list_ptr, 0, sizeof(sn_coap_options_list_s)); coap_res_ptr->options_list_ptr->observe_ptr = &pres_obs_number; coap_res_ptr->options_list_ptr->observe_len = 1; pres_obs_number++; } sn_nsdl_send_coap_message(address, coap_res_ptr); nsdl_free(coap_res_ptr->options_list_ptr); coap_res_ptr->options_list_ptr = NULL; coap_res_ptr->content_type_ptr = NULL;// parser_release below tries to free this memory } sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr); return 0; } int create_IPSO_presence_resource(sn_nsdl_resource_info_s *resource_ptr) { static Thread exec_thread(pres_observe_thread); nsdl_create_dynamic_resource(resource_ptr, sizeof(PRESENCE_RES_ID)-1, (uint8_t*)PRESENCE_RES_ID, sizeof(PRESENCE_RES_RT)-1, (uint8_t*)PRESENCE_RES_RT, 1, &presence_resource_cb, (SN_GRS_GET_ALLOWED)); return 0; }