Changeset fd11144 in mainline for uspace/app/vcalc/vcalc.c

Timestamp:

2020-07-04T21:52:35Z (4 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

fc4abca

Parents:

e79a025

Message:

Make display service argument optional

File:

• uspace/app/vcalc/vcalc.c (modified) (1 diff)

uspace/app/vcalc/vcalc.c

@@ -468 +468 @@
 }
 
+static void print_syntax(void)
+{
+        printf("Syntax: %s [-d <display>]\n", NAME);
+}
+
 int main(int argc, char *argv[])
 {
-        if (argc < 2) {
-                printf("%s: Compositor server not specified.\n", NAME);
-                return 1;
-        }
-
-        window_t *main_window = window_open(argv[1], NULL,
+        const char *display_svc = DISPLAY_DEFAULT;
+        int i;
+
+        i = 1;
+        while (i < argc) {
+                if (str_cmp(argv[i], "-d") == 0) {
+                        ++i;
+                        if (i >= argc) {
+                                printf("Argument missing.\n");
+                                print_syntax();
+                                return 1;
+                        }
+
+                        display_svc = argv[i++];
+                } else {
+                        printf("Invalid option '%s'.\n", argv[i]);
+                        print_syntax();
+                        return 1;
+                }
+        }
+
+        window_t *main_window = window_open(display_svc, NULL,
             WINDOW_MAIN | WINDOW_DECORATED | WINDOW_RESIZEABLE, NAME);
         if (!main_window) {