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         Blob blob = ping->compr_blob->blob;
  21
  22         printf("PingPacket siz: 0x%08x\n", blob->siz);
  23         printf("PingPacket compr_siz: 0x%08x\n", ping->compr_blob->siz);
  24         printf("PingPacket data: 0x%02x%02x\n", blob->data[0], blob->data[1]);
  25
  26         free(blob->data);
  27         free(blob);
  28
  29         dragonnet_peer_send_PongPacket(p, &(PongPacket) {
  30                 .number = 0xdba
  31         });
  32
  33         dragonnet_listener_close(l);
  34         dragonnet_listener_delete(l);
  35         l = NULL;
  36
  37         dragonnet_peer_close(p);
  38         dragonnet_peer_delete(p);
  39 }
  40
  41 static void handle_pongpacket(DragonnetPeer *p, PongPacket *pong)
  42 {
  43         printf("PongPacket number: 0x%08x\n", pong->number);
  44
  45         dragonnet_peer_close(p);
  46         dragonnet_peer_delete(p);
  47 }
  48
  49 static void *srv_func(__attribute((unused)) void *unused)
  50 {
  51         l = dragonnet_listener_new("[::1]:50000", &connect_func);
  52         assert(l != NULL);
  53
  54         dragonnet_listener_set_recv_hook(l, DRAGONNET_TYPE_PINGPACKET,
  55                         (void (*)(DragonnetPeer *, void *)) &handle_pingpacket);
  56         dragonnet_listener_run(l);
  57         return NULL;
  58 }
  59
  60 static void *clt_func(__attribute((unused)) void *unused)
  61 {
  62         while (l == NULL);
  63
  64         DragonnetPeer *p = dragonnet_connect("[::1]:50000");
  65         assert(p != NULL);
  66
  67         dragonnet_peer_set_recv_hook(p, DRAGONNET_TYPE_PONGPACKET,
  68                         (void (*)(DragonnetPeer *, void *)) &handle_pongpacket);
  69         dragonnet_peer_run(p);
  70
  71         CompressedBlob compr_blob = malloc(sizeof *compr_blob);
  72         compr_blob->blob = malloc(sizeof *compr_blob->blob);
  73         compr_blob->blob->siz = 2;
  74         compr_blob->blob->data = (u8 *) "\x0d\xba";
  75
  76         dragonnet_peer_send_PingPacket(p, &(PingPacket) {
  77                 .compr_blob = compr_blob
  78         });
  79
  80         free(compr_blob->blob);
  81         free(compr_blob);
  82         return NULL;
  83 }
  84
  85 int main(__attribute((unused)) int argc, __attribute((unused)) char **argv)
  86 {
  87         pthread_t srv_thread, clt_thread;
  88         pthread_create(&srv_thread, NULL, &srv_func, NULL);
  89         pthread_create(&clt_thread, NULL, &clt_func, NULL);
  90
  91         pthread_join(clt_thread, NULL);
  92         pthread_join(srv_thread, NULL);
  93
  94         while (true);
  95 }