96 lines
1.8 KiB
C
96 lines
1.8 KiB
C
#include <assert.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <getopt.h>
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#include <sys/epoll.h>
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#include "common.h"
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#include "airspy_adsb.h"
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struct opts {
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char *backend_node;
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char *backend_service;
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};
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struct client {
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int placeholder;
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};
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static int parse_opts(int argc, char *argv[], struct opts *opts) {
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int opt;
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while ((opt = getopt(argc, argv, "h:p:")) != -1) {
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switch (opt) {
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case 'h':
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opts->backend_node = optarg;
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break;
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case 'p':
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opts->backend_service = optarg;
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break;
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default:
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return -1;
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}
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}
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return 0;
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}
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static int loop(int epoll_fd) {
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while (1) {
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#define MAX_EVENTS 10
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struct epoll_event events[MAX_EVENTS];
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int nfds = epoll_wait(epoll_fd, events, MAX_EVENTS, -1);
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if (nfds == -1) {
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perror("epoll_wait");
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return -1;
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}
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for (int n = 0; n < nfds; n++) {
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struct peer *peer = events[n].data.ptr;
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switch (peer->type) {
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case PEER_BACKEND:
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if (!backend_read((struct backend *) peer)) {
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return -1;
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}
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break;
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default:
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fprintf(stderr, "Unpossible: unknown peer type.\n");
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return -1;
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}
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}
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}
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}
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int main(int argc, char *argv[]) {
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hex_init();
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airspy_adsb_init();
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struct opts opts = {
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.backend_node = "localhost",
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.backend_service = "30006",
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};
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if (parse_opts(argc, argv, &opts)) {
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fprintf(stderr, "Usage: %s [-h backend_host] [-p backend_port]\n", argv[0]);
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return EXIT_FAILURE;
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}
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int epoll_fd = epoll_create1(0);
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if (epoll_fd == -1) {
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perror("epoll_create1");
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return EXIT_FAILURE;
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}
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struct backend backend = BACKEND_INIT;
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if (!backend_connect(opts.backend_node, opts.backend_service, &backend, epoll_fd)) {
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fprintf(stderr, "Unable to connect to %s/%s\n", opts.backend_node, opts.backend_service);
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return EXIT_FAILURE;
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}
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loop(epoll_fd);
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close(epoll_fd);
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return EXIT_SUCCESS;
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}
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