73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
#include "net/netstack.h"
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#include "net/nullnet/nullnet.h"
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#include "os/net/linkaddr.h"
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#include "os/dev/button-hal.h"
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#include "os/dev/leds.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "sys/log.h"
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#include "sys/clock.h"
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#include "contiki.h"
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#include "../common/product.h"
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#include "../common/supermarket_net.h"
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#define LOG_MODULE "App"
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#define LOG_LEVEL LOG_LEVEL_INFO
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/* MAC Address for cart -- This emulates the RFID tag */
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static linkaddr_t dest_addr = {{0xca, 0xfe, 0xba, 0xbe, 0xde, 0xad, 0xbe, 0xef}};
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product_t product_list[] = {
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{ 1, "21/12/19", 105 },
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{ 2, "12/05/19", 325 },
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{ 3, "05/05/21", 250 }
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};
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PROCESS(product_proc, "product random generator");
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AUTOSTART_PROCESSES(&product_proc);
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void scan_product(product_t* p){
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item_msg m;
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m.msg_type = ITEM_MSG;
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memcpy(&m.p, p, sizeof(*p));
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nullnet_buf = (uint8_t*)&m;
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nullnet_len = sizeof(m);
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NETSTACK_NETWORK.output(&dest_addr);
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LOG_INFO("Product id [%d, %d] scanned from ", (int)p->product_id, (int)p->price);
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LOG_INFO_LLADDR(&dest_addr);
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LOG_INFO_("\n");
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}
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void net_recv(const void* data, uint16_t len, const linkaddr_t* src, const linkaddr_t* dst) {
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if (((msg*)data)->msg_type == START_SHOPPING_MSG) {
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printf("Now sending products to new cart\n");
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LOG_INFO_LLADDR(src);
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memcpy(&dest_addr, src, sizeof(*src));
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}
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}
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PROCESS_THREAD(product_proc, ev, data){
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PROCESS_BEGIN();
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// init random number generator
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unsigned int magic_seed = 12;
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srand(magic_seed);
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// init network subsystem
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nullnet_set_input_callback(net_recv);
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while(1) {
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PROCESS_YIELD();
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if (ev == button_hal_press_event){
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// product generation
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unsigned int index = rand() % 3;
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scan_product(&product_list[index]);
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}
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}
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PROCESS_END();
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}
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