On Tue, 2007-04-17 at 13:56 +0530, prabahar k wrote:
> Hi
>
> Thanks Tristan for u r suggestion for using g_thread_create.
> Thanks James for u r nice code.
>
>
> Also If we want to retain the p_thread_create() in the program then
> its enough to change the compile time flags to include
> `pkg-config --cflags --libs gtk+-2.0 gthread-2.0`
> Its working fine.
>
> Here is the code:
> /**************************gtk19mod.c************************
> compile:
> gcc -g -o gtk19mod gtk19mod.c `pkg-config --cflags --libs gtk+-2.0
> gthread-2.0`
> ************************************************************/
>
> #include <gtk/gtk.h>
> #include <glib.h>
> #include <pthread.h>
> pthread_t thrd1;
>
> void destroy (GtkWidget *widget, gpointer data)
> {
> gtk_main_quit ();
> }
>
> void *argument_thread (void *args)
> {
>
>
> for (;(*(gboolean *)args);)
> {
> /* sleep a while */
> g_usleep(1000000);
> g_print("Inside thread");
> }
> g_thread_exit (NULL);
OK, but don't mix the threading api's. remove the g_thread_exit(). For
portability and stability - I always use glib's threading apis when
using GTK/GDK.
James,
>
> return NULL;
> }
>
> int main (int argc, char *argv[])
> {
> GtkWidget *window;
>
> gboolean b_run_flag = TRUE;
>
> /* init threads */
> g_print("Going thread init\n");
>
> g_thread_init (NULL);
> gdk_threads_init ();
>
> gdk_threads_enter ();
>
> gtk_init(&argc, &argv);
>
> g_print("After init\n");
> /* create a window */
>
> window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
> gtk_signal_connect (GTK_OBJECT (window), "destroy",
> GTK_SIGNAL_FUNC (destroy), NULL);
> gtk_container_set_border_width (GTK_CONTAINER (window), 10);
> gtk_widget_show (window);
>
>
> pthread_create (&thrd1, NULL, argument_thread, (void*)&b_run_flag);
>
>
> gtk_main ();
> gdk_threads_leave ();
>
> b_run_flag = FALSE;
> return 0;
> }
> /************End*******************************************/
>
>
> On 4/17/07, James Scott Jr <[EMAIL PROTECTED]> wrote:
> >
> > On Mon, 2007-04-16 at 18:09 +0530, prabahar k wrote:
> >
> > hi i am trying to use a threaded GTK program. While running theprogram it
> > gives segmentation fault and it seem to be anthread init problem. is there
> > any thing i am missing? Pleasegive u r comments.
> > the code
> > is:/***********************gtk19.c**************************/#include
> > <stdio.h>#include <stdlib.h>#include <unistd.h>#include <time.h>#include
> > <gtk/gtk.h>#include <glib.h>#include <pthread.h>
> > pthread_t thrd1;
> > void destroy (GtkWidget *widget, gpointer data){ gtk_main_quit ();}
> > void *argument_thread (void *args){gdk_threads_enter (); for (;;) {
> > /* sleep a while */
> >
> >
> > sleep(1); g_print("Inside thread");
> >
> > }gdk_threads_leave (); return NULL;}
> > int main (int argc, char *argv[]){ GtkWidget *window;
> > /* init threads */
> > g_thread_init (NULL); gdk_threads_init (); /* init gtk */
> > gdk_threads_enter ();/*[Line :70] */ gtk_init(&argc, &argv);
> > g_print("After init\n");
> > /* create a window */ window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
> > gtk_signal_connect (GTK_OBJECT (window), "destroy",
> > GTK_SIGNAL_FUNC (destroy), NULL);
> > gtk_container_set_border_width (GTK_CONTAINER (window), 10);
> > gtk_widget_show (window);
> > pthread_create (&thrd1, NULL, argument_thread, NULL);
> > gtk_main (); gdk_threads_leave ();
> > return 0;}/**************************************************/
> > I compile it asgcc -Wall -g gtk19.c -o base -lpthread `pkg-config --cflags
> > gtk+-2.0``pkg-config --libs gtk+-2.0` `gtk-config --cflags --libs gthread`
> >
> > ---
> > prabahar
> > _______________________________________________gtk-app-devel-list mailing
> > [EMAIL PROTECTED]://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
> >
> >
> >
> > prabahar,
> >
> > I just modified your code to show the needed changes. Notice that the
> > gdk_threads_enter/leave is removed from the thread and the thread is created
> > using glib's api. I also updated the includes and compile command.
> >
> > James,
> >
> >
> >
> _______________________________________________
> gtk-app-devel-list mailing list
> gtk-app-devel-list@gnome.org
> http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
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