unixctl: Timeout unit tests instead of hanging.

We've seen some unixctl tests hang indefinitely which makes them
difficult to debug.  ovs-appctl and appctl.py calls to timeout
instead.

Signed-off-by: Ethan Jackson <ethan@nicira.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/utilities/ovs-appctl.c b/utilities/ovs-appctl.c
index 241b6c043..f761d5ac2 100644
--- a/utilities/ovs-appctl.c
+++ b/utilities/ovs-appctl.c
@@ -97,6 +97,7 @@ Common commands:\n\
       'off', 'emer', 'err', 'warn', 'info', or 'dbg' ('dbg', bydefault)\n\
   vlog/reopen        Make the program reopen its log file\n\
 Other options:\n\
+  --timeout=SECS     wait at most SECS seconds for a response\n\
   -h, --help         Print this helpful information\n\
   -V, --version      Display ovs-appctl version information\n",
            program_name, program_name);
@@ -111,6 +112,7 @@ parse_command_line(int argc, char *argv[])
         {"execute", no_argument, NULL, 'e'},
         {"help", no_argument, NULL, 'h'},
         {"version", no_argument, NULL, 'V'},
+        {"timeout", required_argument, NULL, 'T'},
         {NULL, 0, NULL, 0},
     };
     const char *target;
@@ -147,6 +149,10 @@ parse_command_line(int argc, char *argv[])
             usage();
             break;
 
+        case 'T':
+            time_alarm(atoi(optarg));
+            break;
+
         case 'V':
             ovs_print_version(0, 0);
             exit(EXIT_SUCCESS);