change type of result variables to ssize_t

[libserialport.git] / examples / await_events.c

diff --git a/examples/await_events.c b/examples/await_events.c
index 133d899376fb08e9ee30e7d8dc69e020b7172b3f..9ec1d47aebfe1a93a3f91dc33b585e1ffeb9f25f 100644 (file)
--- a/examples/await_events.c
+++ b/examples/await_events.c
@@ -20,7 +20,9 @@ int main(int argc, char **argv)
        char **port_names = argv + 1;
 
        /* The ports we will use. */
-       struct sp_port *ports[num_ports];
+       struct sp_port **ports = malloc(num_ports * sizeof(struct sp_port *));
+       if (!ports)
+               abort();
 
        /* The set of events we will wait for. */
        struct sp_event_set *event_set;
@@ -31,7 +33,6 @@ int main(int argc, char **argv)
        /* Open and configure each port, and then add its RX event
         * to the event set. */
        for (int i = 0; i < num_ports; i++) {
-
                printf("Looking for port %s.\n", port_names[i]);
                check(sp_get_port_by_name(port_names[i], &ports[i]));
 
@@ -77,23 +78,24 @@ int check(enum sp_return result)
 {
        /* For this example we'll just exit on any error by calling abort(). */
        char *error_message;
+
        switch (result) {
-               case SP_ERR_ARG:
-                       printf("Error: Invalid argument.\n");
-                       abort();
-               case SP_ERR_FAIL:
-                       error_message = sp_last_error_message();
-                       printf("Error: Failed: %s\n", error_message);
-                       sp_free_error_message(error_message);
-                       abort();
-               case SP_ERR_SUPP:
-                       printf("Error: Not supported.\n");
-                       abort();
-               case SP_ERR_MEM:
-                       printf("Error: Couldn't allocate memory.\n");
-                       abort();
-               case SP_OK:
-               default:
-                       return result;
+       case SP_ERR_ARG:
+               printf("Error: Invalid argument.\n");
+               abort();
+       case SP_ERR_FAIL:
+               error_message = sp_last_error_message();
+               printf("Error: Failed: %s\n", error_message);
+               sp_free_error_message(error_message);
+               abort();
+       case SP_ERR_SUPP:
+               printf("Error: Not supported.\n");
+               abort();
+       case SP_ERR_MEM:
+               printf("Error: Couldn't allocate memory.\n");
+               abort();
+       case SP_OK:
+       default:
+               return result;
        }
 }