mem leak review (blast from the past)
- From: Tristan Van Berkom <vantr touchtunes com>
- To: gtk-app-devel-list gnome org
- Subject: mem leak review (blast from the past)
- Date: Tue, 07 Jan 2003 15:57:50 -0500
Hi all,
The following code snippet is from a post
to `gtk-devel-list' by Sven Neumann in
september 2001 conserning a memory leak.
What I've noticed is that if the
application in question does not have
`focus' ; thats when it starts leaking.
If there was a fix to that bug
since version 1.3.8 I would really like
to know in which version and if possible;
which files. (right now I'm struggling
to make sure that app #1 doesn't
`gtk_label_set_text' when app #2 has focus etc
etc ... real headache).
Thanks in advance,
-Tristan
PS.
Of course; if I figure it out first
I'll send in a patch.
====================================
THIS LEAKS...
====================================
#include <stdio.h>
#include <gtk/gtk.h>
GtkWidget *label;
guint count, timeout_id = 0;
gboolean set_text (gpointer foo)
{
char buf[32];
sprintf(buf, "%03d", ++count);
gtk_label_set_text (GTK_LABEL(label), buf);
return TRUE;
}
void click_callback (GtkWidget *widget,
gpointer data)
{
if (timeout_id)
{
g_source_remove(timeout_id);
timeout_id = 0;
}
else
{
timeout_id = g_timeout_add (10, set_text, 0);
}
}
void destroy (GtkWidget *widget,
gpointer data)
{
gtk_main_quit();
}
int main (int argc,
char *argv[])
{
GtkWidget *window;
GtkWidget *button;
GtkWidget *vbox;
gtk_init(&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
label = gtk_label_new ("foo");
count = 0;
vbox = gtk_hbox_new (FALSE, 0);
gtk_signal_connect (GTK_OBJECT (window), "destroy",
GTK_SIGNAL_FUNC (destroy), NULL);
gtk_container_set_border_width (GTK_CONTAINER (window), 10);
button = gtk_button_new_with_label ("Leak!");
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (click_callback), NULL);
gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 5);
gtk_box_pack_end (GTK_BOX (vbox), button, TRUE, TRUE, 5);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_widget_show (label);
gtk_widget_show (button);
gtk_widget_show (vbox);
gtk_widget_show (window);
gtk_main ();
return(0);
}
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