Thu, 28 Oct 2010 11:02:13 +1100 письмо от Lex Trotman <elextr@xxxxxxxxx>: > From the traceback below, GIO is using threads to implement > asynchronism. Using sigprocmask and therefore signal() is undefined > in a multi-threaded program but probably defaults to applying to the > current thread only. Clearly it hasn't blocked the sigint in the > thread waiting on the pipe IO. So that thread received the signal and > executed the default action, terminate the process :-( > Try blocking sigint very first thing in main(), before any g_* calls, > then subsequent threads will inherit the signal mask with sigint > blocked. Thank you for your answer, Lex. I put signal(SIGINT, SIG_IGN) as a first instruction in main(), but SIGINT is still passing to IDE process, and moreover - to display manager so my X session finishes if I'm not running all this mess under another gdb instance. Maybe GTK resets handler to SIG_DFL for some reason? I didn't get clearly about threads, signal handler is set for a whole process, isn't it? > GDB sends the signal to its child, ie the process its debugging, but > signals received by any member go to the whole signal group which by > default includes GDB itself and your IDE. Here you gave me a point, I attempted out to move gdb to a new process group after spawning (setpgid(gdb_pid, 0)), IDE stopped to receive SIGINT, but gdb output was not like any interruption really took place: "^done\n&Quit\n", no "*stopped" marker, so probably SIGINT was not sent at all to any process > Thats the traceback, whats the error message, I'm assuming something > like sigint received?? Exactly, Program received signal SIGINT, Interrupt. 0xb7fe2424 in __kernel_vsyscall () I want be able to interrupt gdb to be able to insert/delete/modify breakpoints while debugger is running, by the way I'm trying to do it for geany, I saw your name in geany-devel list, are you still in business? Best regards, Alexander _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
