File content as of revision 4:ab3c8d25260e:

// GPS resource implementation

#include "mbed.h"
#include "rtos.h"
#include "nsdl_support.h"
#include "nespresso.h"
#include "detection.h"

#define NESPRESSO_RES_ID    "sensor/capsule"

extern Serial pc;
/* stored data for observable resource */
static uint8_t obs_number = 0;
static uint8_t *obs_token_ptr = NULL;
static uint8_t obs_token_len = 0;

static const char* g_name = "no_capsule";

static RGB_Detection g_detector(p23,p24,p25,p20);


/*
 *
 *
 */
/*
const char* do_detection()
{
    static int counter = 0;
    
    const char *names[] = {
      "KAZAAR",
      "DHARKAN",    
      "RISTRETTO",
      "ARPEGGIO",
      "ROMA",
      "LIVANTO",
      "CAPRICCIO",  
      "VOLLUTO",
      "COSI",
      "INDRIYA FROM INDIA",
      "ROSABAYA DE COLUMBIA",
      "DULSAO DO BRASIL",
      "BUKEELA KA ETHIOPIA",
      "FORTISSIMO LUNGO RENOVATION",
      "DECAFFEINATO LUNGO",
      "DECAFFEINATO",
      "DECAFFEINATO INTENSO"
    };
    const int num_names = sizeof(names) / sizeof(names[0]);
    
    wait_ms(1500);
    
    counter++;
    return names[counter % num_names];
}
*/
/*
    console.printf("Started\r\n");
    RGB_Detection detector(p23,p24,p25,p20);
    
    console.baud(115200);
    
    while (1) 
    {
        const char* name = detector.run(); 
        console.printf("%s\r\n", name);
    }
*/

/* Thread for calling libNsdl exec function (cleanup, resendings etc..) */
/* Node updates nespresso value every 10 seconds. Notification sending is done here. */
static void exec_call_thread(void const *args)
{
    pc.printf("Entering thread\r\n");
    int32_t time = 0;
    while (true)
    {
        time++;
        sn_nsdl_exec(time);
        pc.printf("obs_number: %d, obs_token_ptr: %0x%08x\r\n", obs_number, obs_token_ptr);
        // if (obs_number != 0 && obs_token_ptr != NULL)
        {
            obs_number++;        
            pc.printf("Waiting for detector...\r\n");    
            g_name = g_detector.run(); //do_detection();            
            int len = strlen(g_name);
            pc.printf("Detected %s\r\n", g_name);
            if(sn_nsdl_send_observation_notification(obs_token_ptr, obs_token_len, (uint8_t*)g_name, len, &obs_number, 1, COAP_MSG_TYPE_NON_CONFIRMABLE, 0) == 0) 
            {
                pc.printf("Failed to send observation\r\n");
            }
            else 
            {
                pc.printf("Sent observation successfully\r\n");
            }
        }
    }
}

#if 0
static void exec_call_thread(void const *args)
{
    int32_t time = 0;
    while (true)
    {
        time++;
        sn_nsdl_exec(time);
        if((!(time % 10)) && obs_number != 0 && obs_token_ptr != NULL)
        {
            obs_number++;
            if(sn_nsdl_send_observation_notification(obs_token_ptr, obs_token_len, (uint8_t*)g_res_nespresso_val, (strlen(res_nespresso_val)-1), &obs_number, 1, COAP_MSG_TYPE_NON_CONFIRMABLE, 0) == 0) 
            {
                pc.printf("Observation sending failed\r\n");
            }
            else 
            {
                pc.printf("Observation\r\n");
            }
        }
    }
}
#endif



/* Only GET method allowed */
static uint8_t nespresso_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;

    pc.printf("nespresso callback\r\n");

    coap_res_ptr = sn_coap_build_response(received_coap_ptr, COAP_MSG_CODE_RESPONSE_CONTENT);

    coap_res_ptr->payload_len = strlen(g_name)-1;
    coap_res_ptr->payload_ptr = (uint8_t*)g_name;

    if(received_coap_ptr->token_ptr)
    {
        pc.printf("Token included\r\n");
        if(obs_token_ptr)
        {
            free(obs_token_ptr);
            obs_token_ptr = 0;
        }
        obs_token_ptr = (uint8_t*)malloc(received_coap_ptr->token_len);
        if(obs_token_ptr)
        {
            memcpy(obs_token_ptr, received_coap_ptr->token_ptr, received_coap_ptr->token_len);
            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 = &obs_number;
        coap_res_ptr->options_list_ptr->observe_len = 1;
        obs_number++;
    }

    sn_nsdl_send_coap_message(address, coap_res_ptr);

    coap_res_ptr->options_list_ptr->observe_ptr = 0;
    sn_coap_parser_release_allocated_coap_msg_mem(coap_res_ptr);

    return 0;
}

int create_nespresso_resource(sn_nsdl_resource_info_s *resource_ptr)
{
    static Thread exec_thread(exec_call_thread);
    pc.printf("Created thread\r\n");
    nsdl_create_dynamic_resource(resource_ptr, sizeof(NESPRESSO_RES_ID)-1, (uint8_t*)NESPRESSO_RES_ID, 0, 0, 1, &nespresso_resource_cb, SN_GRS_GET_ALLOWED);
    pc.printf("Created resource\r\n");
    return 0;
}