I don't understand your question... aside from the fact that the example starts two threads that would never end without killing/signaling the process, I do think you're example looks fine. Or is your question: can a combination of usleep calls and gdk threads cause problems? In that case I can't help you (a quick look on google gave me this link http://man.chinaunix.net/develop/GTK+/2.6/gdk/gdk-Threads.html) Regards, Douwe Vos ----- Original Message ---- From: frederico schardong <frede.sch@xxxxxxxxx> To: gtk-list@xxxxxxxxx Sent: Tuesday, July 14, 2009 2:50:50 AM Subject: error with thread Hi, I have a so big function (near 600 lines) and it communicates with some embedded system using serial port... this function have some ties (for and while).. and a great number of usleep... When I call this function, GTK windows and widgets are lost.. and this mustn't be happen... to resolve this I'm using threads like this example: /* Compile me with: * gcc -o sample3 sample3.c $(pkg-config --cflags --libs gtk+-2.0 gthread-2.0) */ #include <gtk/gtk.h> static gpointer thread_func( gpointer data ) { while( TRUE ) { usleep( 500000 ); gdk_threads_enter(); g_print("\naa"); gdk_threads_leave(); } return( NULL ); } static gpointer thread_func1( gpointer data ) { while( TRUE ) { sleep( 1 ); gdk_threads_enter(); g_print("\nbb"); gdk_threads_leave(); } return( NULL ); } int main( int argc, char **argv ) { GThread *thread, *th; GError *error = NULL; /* Secure glib */ if( ! g_thread_supported() ) g_thread_init( NULL ); /* Secure gtk */ gdk_threads_init(); /* Obtain gtk's global lock */ gdk_threads_enter(); /* Do stuff as usual */ gtk_init( &argc, &argv ); /* Create new thread */ thread = g_thread_create( thread_func, NULL, FALSE, &error ); if( ! thread ) { g_print( "Error: %s\n", error->message ); return( -1 ); } /* Create new thread */ th = g_thread_create( thread_func1, NULL, FALSE, &error ); if( ! th ) { g_print( "Error: %s\n", error->message ); return( -1 ); } gtk_main(); /* Release gtk's global lock */ gdk_threads_leave(); return( 0 ); } //end I'm using exactly like this example, but all stopped widgets keep going like before.. have this function any limitations about ties number (for, while) or time under the while(1) of the thread? Thanks! -- Abraço, Frederico Schardong, SOLIS - O lado livre da tecnologia www.solis.coop.br _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
