2 #include <dragonnet/listen.h>
3 #include <dragonnet/recv.h>
7 #include <sys/socket.h>
14 static bool dragonnet_peer_init_accepted(DragonnetPeer *p, int sock,
15 struct sockaddr_in6 addr, DragonnetListener *l)
17 pthread_rwlock_init(&p->mu, NULL);
18 pthread_rwlock_wrlock(&p->mu);
20 pthread_rwlock_rdlock(&l->mu);
23 p->raddr = dragonnet_addr_parse_sock(addr);
24 p->on_recv_type = l->on_recv_type;
25 pthread_rwlock_unlock(&l->mu);
27 pthread_rwlock_unlock(&p->mu);
31 static DragonnetPeer *dragonnet_peer_accept(int sock, struct sockaddr_in6 addr,
34 DragonnetPeer *p = malloc(sizeof *p);
35 if (!dragonnet_peer_init_accepted(p, sock, addr, l)) {
36 dragonnet_peer_delete(p);
47 DragonnetListener *dragonnet_listener_new(char *addr,
48 void (*on_connect)(DragonnetPeer *p))
50 DragonnetListener *l = malloc(sizeof *l);
51 pthread_rwlock_init(&l->mu, NULL);
52 pthread_rwlock_wrlock(&l->mu);
54 l->sock = socket(AF_INET6, SOCK_STREAM, 0);
55 l->on_connect = on_connect;
56 l->on_recv_type = calloc(sizeof *l->on_recv_type, dragonnet_num_types);
59 if (setsockopt(l->sock, SOL_SOCKET, SO_REUSEADDR, &so_reuseaddr,
60 sizeof so_reuseaddr) < 0) {
62 dragonnet_listener_delete(l);
66 l->laddr = dragonnet_addr_parse_str(addr);
67 struct sockaddr_in6 ai_addr = dragonnet_addr_sock(l->laddr);
69 if (bind(l->sock, (const struct sockaddr *) &ai_addr, sizeof ai_addr) < 0) {
71 dragonnet_listener_delete(l);
75 if (listen(l->sock, 10) < 0) {
77 dragonnet_listener_delete(l);
81 pthread_rwlock_unlock(&l->mu);
85 void dragonnet_listener_set_recv_hook(DragonnetListener *l, u16 type_id,
86 void (*on_recv)(struct dragonnet_peer *, void *))
88 pthread_rwlock_rdlock(&l->mu);
89 DragonnetListenerState state = l->state;
90 pthread_rwlock_unlock(&l->mu);
92 if (state >= DRAGONNET_LISTENER_ACTIVE)
95 pthread_rwlock_wrlock(&l->mu);
96 l->on_recv_type[type_id] = on_recv;
97 pthread_rwlock_unlock(&l->mu);
100 static void *listener_main(void *g_listener)
102 DragonnetListener *l = (DragonnetListener *) g_listener;
104 pthread_rwlock_wrlock(&l->mu);
105 assert(l->state == DRAGONNET_LISTENER_CREATED);
107 pthread_rwlock_unlock(&l->mu);
109 while (l->state == DRAGONNET_LISTENER_ACTIVE) {
110 struct sockaddr_in6 clt_addr;
111 socklen_t clt_addrlen = sizeof clt_addr;
113 pthread_rwlock_rdlock(&l->mu);
115 pthread_rwlock_unlock(&l->mu);
117 int clt_sock = accept(sock, (struct sockaddr *) &clt_addr, &clt_addrlen);
123 DragonnetPeer *p = dragonnet_peer_accept(clt_sock, clt_addr, l);
127 dragonnet_peer_run(p);
129 pthread_rwlock_rdlock(&l->mu);
130 void (*on_connect)(DragonnetPeer *) = l->on_connect;
131 pthread_rwlock_unlock(&l->mu);
133 if (on_connect != NULL)
140 void dragonnet_listener_run(DragonnetListener *l)
142 pthread_create(&l->accept_thread, NULL, &listener_main, l);
145 void dragonnet_listener_close(DragonnetListener *l)
147 pthread_rwlock_wrlock(&l->mu);
149 pthread_t accept_thread = l->accept_thread;
150 assert(l->state == DRAGONNET_LISTENER_ACTIVE);
155 pthread_rwlock_unlock(&l->mu);
157 pthread_cancel(accept_thread);
158 pthread_join(accept_thread, NULL);
161 void dragonnet_listener_delete(DragonnetListener *l)
163 pthread_rwlock_destroy(&l->mu);