+
+/*
+ * Set socket receiving timeout.
+ */
+LTTNG_HIDDEN
+int lttcomm_setsockopt_rcv_timeout(int sock, unsigned int msec)
+{
+ int ret;
+ struct timeval tv;
+
+ tv.tv_sec = msec / 1000;
+ tv.tv_usec = (msec % 1000) * 1000;
+
+ ret = setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
+ if (ret < 0) {
+ PERROR("setsockopt SO_RCVTIMEO");
+ }
+
+ return ret;
+}
+
+/*
+ * Set socket sending timeout.
+ */
+LTTNG_HIDDEN
+int lttcomm_setsockopt_snd_timeout(int sock, unsigned int msec)
+{
+ int ret;
+ struct timeval tv;
+
+ tv.tv_sec = msec / 1000;
+ tv.tv_usec = (msec % 1000) * 1000;
+
+ ret = setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
+ if (ret < 0) {
+ PERROR("setsockopt SO_SNDTIMEO");
+ }
+
+ return ret;
+}
+
+LTTNG_HIDDEN
+int lttcomm_sock_get_port(const struct lttcomm_sock *sock, uint16_t *port)
+{
+ assert(sock);
+ assert(port);
+ assert(sock->sockaddr.type == LTTCOMM_INET ||
+ sock->sockaddr.type == LTTCOMM_INET6);
+ assert(sock->proto == LTTCOMM_SOCK_TCP ||
+ sock->proto == LTTCOMM_SOCK_UDP);
+
+ switch (sock->sockaddr.type) {
+ case LTTCOMM_INET:
+ *port = ntohs(sock->sockaddr.addr.sin.sin_port);
+ break;
+ case LTTCOMM_INET6:
+ *port = ntohs(sock->sockaddr.addr.sin6.sin6_port);
+ break;
+ default:
+ abort();
+ }
+
+ return 0;
+}
+
+LTTNG_HIDDEN
+int lttcomm_sock_set_port(struct lttcomm_sock *sock, uint16_t port)
+{
+ assert(sock);
+ assert(sock->sockaddr.type == LTTCOMM_INET ||
+ sock->sockaddr.type == LTTCOMM_INET6);
+ assert(sock->proto == LTTCOMM_SOCK_TCP ||
+ sock->proto == LTTCOMM_SOCK_UDP);
+
+ switch (sock->sockaddr.type) {
+ case LTTCOMM_INET:
+ sock->sockaddr.addr.sin.sin_port = htons(port);
+ break;
+ case LTTCOMM_INET6:
+ sock->sockaddr.addr.sin6.sin6_port = htons(port);
+ break;
+ default:
+ abort();
+ }
+
+ return 0;
+}
+
+LTTNG_HIDDEN
+void lttcomm_init(void)
+{
+ const char *env;
+
+ env = getenv(NETWORK_TIMEOUT_ENV);
+ if (env) {
+ long timeout;
+
+ errno = 0;
+ timeout = strtol(env, NULL, 0);
+ if (errno != 0 || timeout < -1L) {
+ PERROR("Network timeout");
+ } else {
+ if (timeout > 0) {
+ network_timeout = timeout;
+ }
+ }
+ }
+}
+
+LTTNG_HIDDEN
+unsigned long lttcomm_get_network_timeout(void)
+{
+ return network_timeout;
+}