cs_example.c

   1 #include <assert.h>
   2 #include <pthread.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5
   6 #include "deps/dragonnet/listen.h"
   7 #include "dnet-types.h"
   8
   9 static DragonnetListener *l;
  10
  11 static void connect_func(DragonnetPeer *p)
  12 {
  13         char *str_addr = dragonnet_addr_str(p->raddr);
  14         printf("new connection from %s\n", str_addr);
  15         free(str_addr);
  16 }
  17
  18 static void handle_pingpacket(DragonnetPeer *p, PingPacket *ping)
  19 {
  20         printf("PingPacket number: 0x%08x\n", ping->number);
  21
  22         dragonnet_peer_send_PongPacket(p, &(PongPacket) {
  23                 .number = ping->number
  24         });
  25
  26         dragonnet_listener_close(l);
  27         dragonnet_listener_delete(l);
  28         l = NULL;
  29
  30         dragonnet_peer_close(p);
  31         dragonnet_peer_delete(p);
  32 }
  33
  34 static void handle_pongpacket(DragonnetPeer *p, PongPacket *pong)
  35 {
  36         printf("PongPacket number: 0x%08x\n", pong->number);
  37
  38         dragonnet_peer_close(p);
  39         dragonnet_peer_delete(p);
  40 }
  41
  42 static void *srv_func(__attribute((unused)) void *unused)
  43 {
  44         l = dragonnet_listener_new("[::1]:50000", &connect_func);
  45         assert(l != NULL);
  46
  47         dragonnet_listener_set_recv_hook(l, DRAGONNET_TYPE_PINGPACKET,
  48                         (void (*)(DragonnetPeer *, void *)) &handle_pingpacket);
  49         dragonnet_listener_run(l);
  50         return NULL;
  51 }
  52
  53 static void *clt_func(__attribute((unused)) void *unused)
  54 {
  55         while (l == NULL);
  56
  57         DragonnetPeer *p = dragonnet_connect("[::1]:50000");
  58         assert(p != NULL);
  59
  60         dragonnet_peer_set_recv_hook(p, DRAGONNET_TYPE_PONGPACKET,
  61                         (void (*)(DragonnetPeer *, void *)) &handle_pongpacket);
  62         dragonnet_peer_run(p);
  63
  64         dragonnet_peer_send_PingPacket(p, &(PingPacket) {
  65                 .number = 0xdba
  66         });
  67
  68         return NULL;
  69 }
  70
  71 int main(__attribute((unused)) int argc, __attribute((unused)) char **argv)
  72 {
  73         pthread_t srv_thread, clt_thread;
  74         pthread_create(&srv_thread, NULL, &srv_func, NULL);
  75         pthread_create(&clt_thread, NULL, &clt_func, NULL);
  76
  77         pthread_join(clt_thread, NULL);
  78         pthread_join(srv_thread, NULL);
  79
  80         while (true);
  81 }