on_error_query
Description:
Prompts the user with `[E]xit, [H]alt, show [S]tack trace or [P]roceed`.
This function is intended to be used for debugging use only. The following example shows how it can be used together with the log functions.
#include <glib.h>
static void
log_handler (const gchar *log_domain,
GLogLevelFlags log_level,
const gchar *message,
gpointer user_data)
{
g_log_default_handler (log_domain, log_level, message, user_data);
g_on_error_query (MY_PROGRAM_NAME);
}
int
main (int argc, char *argv[])
{
g_log_set_handler (MY_LOG_DOMAIN,
G_LOG_LEVEL_WARNING |
G_LOG_LEVEL_ERROR |
G_LOG_LEVEL_CRITICAL,
log_handler,
NULL);
...
If "[E]xit" is selected, the application terminates with a call to _exit(0).
If "[S]tack" trace is selected, on_error_stack_trace is called. This invokes gdb, which attaches to the current process and shows a stack trace. The prompt is then shown again.
If "[P]roceed" is selected, the function returns.
This function may cause different actions on non-UNIX platforms.
On Windows consider using the `G_DEBUGGER` environment variable (see [Running GLib Applications](glib-running.html)) and calling on_error_stack_trace instead.
Parameters:
prg_name |
the program name, needed by gdb for the "[S]tack trace" option. If |