Add live trace read support to lttv base library and to command line modules

[lttv.git] / lttv / lttv / option.c

diff --git a/lttv/lttv/option.c b/lttv/lttv/option.c
index 148b4c88ad1c4c69d21d4fc7ceea07e4517273d1..11eb56a71f8624202a602c1885195e1f7551d04f 100644 (file)
--- a/lttv/lttv/option.c
+++ b/lttv/lttv/option.c
@@ -61,6 +61,20 @@ static void free_option(LttvOption *option)
        g_free(option);
 }
 
+static gboolean compare_short_option(gpointer key,
+                                    gpointer value,
+                                    gpointer user_data)
+{
+       LttvOption *option = value;
+       const char short_option = *(const char *)user_data;
+
+
+       if(option->char_name == short_option) {
+               return TRUE;
+       } else {
+               return FALSE;
+       }
+}
 
 void lttv_option_add(const char *long_name, const char char_name,
                const char *description, const char *arg_description,
@@ -71,9 +85,16 @@ void lttv_option_add(const char *long_name, const char char_name,
 
        g_log(G_LOG_DOMAIN, G_LOG_LEVEL_INFO, "Add option %s", long_name);
        if(g_hash_table_lookup(options, long_name) != NULL) {
-               g_warning("duplicate option");
+               g_warning("duplicate long-option: %s", long_name);
                return;
        }
+       if(char_name && g_hash_table_find(options, compare_short_option, (gpointer)&char_name) != NULL) {
+               g_warning("duplicate short-option: %c for option %s", 
+                         char_name,
+                         long_name);
+               return;         
+       }
+
 
        option = g_new(LttvOption, 1);
        option->long_name = g_strdup(long_name);