Causing Gtk to abort on assert

Question

I have to debug a program which is heavily dependent on Gtk. The issue is that for some reason a lot of runtime warnings have started appearing when working with GtkWi

Answer 1

I am collecting the methods Matt mentioned and the one I found out to provide the complete answer here. I will mark it as the chosen answer and up-vote Matt's answer.

Three ways to force gtk to agort on error:

1. G_DEBUG=fatal_warnings ./myprog ...
2. ./myprog -prog-args --g-fatal-warnings
3. Use g_log_set_handler, and/or g_log_default_handler and provide a GLogFunc of your own design that aborts based on the GLogLevelFlags passed to it for each message.

I should also mention g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL|G_LOG_LEVEL_WARNING); to make the list complete even though "always fatal" is not what I was looking for.

Answer 2

Use g_log_set_handler, and/or g_log_default_handler and provide a GLogFunc of your own design that aborts based on the GLogLevelFlags passed to it for each message.

void abort_on_g_log(
    const gchar *log_domain,
    GLogLevelFlags log_level,
    const gchar *message,
    gpointer user_data)
{
    if (log_level & G_LOG_LEVEL_CRITICAL) abort();
    g_log_default_handler(log_domain, log_level, message, user_data);
}

Update0

If you're happy having glib terminate for you, you can use:

g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL|G_LOG_LEVEL_WARNING);

or run with G_DEBUG=fatal_warnings ./myprog ... if glib is correctly configured, see here for more.