fix cpu race on ws poll

libs/sofia-sip/libsofia-sip-ua/tport/tport_type_ws.c

@@ -205,7 +205,9 @@ int tport_recv_stream_ws(tport_t *self)
   ws_opcode_t oc;
 
   if ( !wstp->ws_initialized ) {
-	  ws_init(ws, self->tp_socket, 65336, wstp->ws_secure ? wspri->ssl_ctx : NULL);
+	  if (ws_init(ws, self->tp_socket, 65336, wstp->ws_secure ? wspri->ssl_ctx : NULL) == -2) {
+		  return 2;
+	  }
 	  wstp->ws_initialized = 1;
 	  self->tp_pre_framed = 1;
 	  return 1;
@@ -213,6 +215,10 @@ int tport_recv_stream_ws(tport_t *self)
 
   N = ws_read_frame(ws, &oc, &data);
 
+  if (N == -2) {
+	  return 2;
+  }
+
   if (N == -1000) {
     if (self->tp_msg)
       msg_recv_commit(self->tp_msg, 0, 1);

libs/sofia-sip/libsofia-sip-ua/tport/ws.c

@@ -283,18 +283,21 @@ int ws_handshake(wsh_t *wsh)
 ssize_t ws_raw_read(wsh_t *wsh, void *data, size_t bytes)
 {
 	ssize_t r;
+	int x = 0;
 
 	if (wsh->ssl) {
 		do {
 			r = SSL_read(wsh->ssl, data, bytes);
-		} while (r == -1 && SSL_get_error(wsh->ssl, r) == SSL_ERROR_WANT_READ);
+			if (x++) {usleep(10000);
+		} while (r == -1 && SSL_get_error(wsh->ssl, r) == SSL_ERROR_WANT_READ && x < 100);
 
 		return r;
 	}
 
 	do {
 		r = recv(wsh->sock, data, bytes, 0);
-	} while (r == -1 && (errno == EAGAIN || errno == EINTR));
+		if (x++) {usleep(10000);
+	} while (r == -1 && (errno == EAGAIN || errno == EINTR) && x < 100);
 
 	if (r<0) {
 		//printf("READ FAIL: %s\n", strerror(errno));