put poll() calls in loops in case they are interrupted by signals

[ust.git] / libustcomm / ustcomm.c

diff --git a/libustcomm/ustcomm.c b/libustcomm/ustcomm.c
index 004cdb001f340e355574c87679f5f82bedf81b41..0a5ab6aaaf1110d8e66a44b123f81f4d9829c878 100644 (file)
--- a/libustcomm/ustcomm.c
+++ b/libustcomm/ustcomm.c
@@ -1,3 +1,20 @@
+/* Copyright (C) 2009  Pierre-Marc Fournier
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
 #define _GNU_SOURCE
 #include <sys/types.h>
 #include <signal.h>
@@ -255,7 +272,8 @@ int ustcomm_recv_message(struct ustcomm_server *server, char **msg, struct ustco
                        idx++;
                }
 
-               result = poll(fds, n_fds, timeout);
+               while((result = poll(fds, n_fds, timeout)) == -1 && errno == EINTR)
+                       /* nothing */;
                if(result == -1) {
                        PERROR("poll");
                        return -1;