Re: slrn hangs in infinite loop if terminal dies

Hallo John,

"John E. Davis" <[email protected]> wrote:
> Jörg Sommer <[email protected]> wrote:
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=450845
>
> This bug report pertains to version 0.9.8.1pl1-28.  With pre0.9.9, I
> am unable to reproduce the problem.

Oh, I can reproduce it.

#v+
% slrn --version
slrn pre0.9.9-87
        * Hinweis: Dies ist eine Vorab-Version für Programmentwickler.
Version der S-Lang-Bibliothek: 2.1.3
Kompilierdatum: Mar  3 2008 19:21:06
Betriebssystem: Debian

COMPILE TIME OPTIONS:
 Backends: +nntp +slrnpull +spool
 External programs / libs: +canlock +inews -ssl -uudeview +iconv
 Features: +decoding +emphasized_text +end_of_thread +fake_refs +gen_msgid
    -grouplens -msgid_cache +piping +rnlock +spoilers -strict_from

DEFAULTS:
 Default server object:     nntp
 Default posting mechanism: nntp
#v-

#v+
#0  0x0fd5916c in sigprocmask () from /lib/libc.so.6
#1  0x0ff76930 in ?? () from /lib/libslang.so.2
#2  0x0ff76c5c in ?? () from /lib/libslang.so.2
#3  0x0ff04f3c in ?? () from /lib/libslang.so.2
#4  0x0ff1b76c in ?? () from /lib/libslang.so.2
#5  0x0ff1c86c in SLang_set_error () from /lib/libslang.so.2
#6  0x10057acc in slrn_do_keymap_key (map=0x100cd558)
    at /home/joerg/git/debian/slrn/src/slrn.c:1615
#7  0x10057ed0 in main (argc=5, argv=0xbf904784)
    at /home/joerg/git/debian/slrn/src/slrn.c:1734
#v-

#v+
#0  0x0fd59170 in sigprocmask () from /lib/libc.so.6
(gdb) l
1729            if (SLang_get_error() || !SLang_input_pending(0))
1730              {
1731                 slrn_update_screen ();
1732              }
1733
1734            slrn_do_keymap_key (Slrn_Current_Mode->keymap);
1735         }
1736
1737       return 1;
1738    }
(gdb) up
#1  0x0ff76930 in ?? () from /lib/libslang.so.2
(gdb) l
1739
1740    /*}}}*/
1741
1742    /*}}}*/
1743
1744    int slrn_posix_system (char *cmd, int reset) /*{{{*/
1745    {
1746       int ret;
1747       int init_mode = Slrn_TT_Initialized;
1748
(gdb) up
#2  0x0ff76c5c in ?? () from /lib/libslang.so.2
(gdb) l
1749       if (reset) slrn_set_display_state (0);
1750       ret = SLsystem (cmd);
1751       if (reset) slrn_set_display_state (init_mode);
1752       Slrn_Full_Screen_Update = 1;
1753       return ret;
1754    }
1755
1756    /*}}}*/
(gdb) up
#3  0x0ff04f3c in ?? () from /lib/libslang.so.2
(gdb) l
Line number 1757 out of range; /home/joerg/git/debian/slrn/src/slrn.c has 1756 lines.
(gdb) up
#4  0x0ff1b76c in ?? () from /lib/libslang.so.2
(gdb) l
Line number 1757 out of range; /home/joerg/git/debian/slrn/src/slrn.c has 1756 lines.
(gdb) up
#5  0x0ff1c86c in SLang_set_error () from /lib/libslang.so.2
(gdb) l
Line number 1757 out of range; /home/joerg/git/debian/slrn/src/slrn.c has 1756 lines.
(gdb) up
#6  0x10057acc in slrn_do_keymap_key (map=0x100cd558)
    at /home/joerg/git/debian/slrn/src/slrn.c:1615
1615       SLang_set_error (0);
(gdb) l
1610         {
1611            if (SLang_get_error()) SLang_restart (0);
1612            slrn_clear_message ();
1613         }
1614       SLKeyBoard_Quit = 0;
1615       SLang_set_error (0);
1616       
1617       if ((key == NULL) || (key->type == 0))
1618         {
1619            SLtt_beep ();
(gdb) up
#7  0x10057ed0 in main (argc=5, argv=0xbf904784)
    at /home/joerg/git/debian/slrn/src/slrn.c:1734
1734            slrn_do_keymap_key (Slrn_Current_Mode->keymap);
(gdb) l
1729            if (SLang_get_error() || !SLang_input_pending(0))
1730              {
1731                 slrn_update_screen ();
1732              }
1733
1734            slrn_do_keymap_key (Slrn_Current_Mode->keymap);
1735         }
1736
1737       return 1;
1738    }
(gdb) finish
Run till exit from #0  0x0ff1c86c in SLang_set_error () from /lib/libslang.so.2
slrn_do_keymap_key (map=0x100cd558)
    at /home/joerg/git/debian/slrn/src/slrn.c:1617
1617       if ((key == NULL) || (key->type == 0))
(gdb) l
1612            slrn_clear_message ();
1613         }
1614       SLKeyBoard_Quit = 0;
1615       SLang_set_error (0);
1616       
1617       if ((key == NULL) || (key->type == 0))
1618         {
1619            SLtt_beep ();
1620            return;
1621         }
(gdb) n
1619            SLtt_beep ();
(gdb) n
1648    }
(gdb) n
main (argc=5, argv=0xbf904784) at /home/joerg/git/debian/slrn/src/slrn.c:1719
1719       while (Slrn_Current_Mode != NULL)
(gdb) n
1721            if (SLKeyBoard_Quit)
(gdb) n
1727            (void) slrn_handle_interrupts ();
(gdb) n
1729            if (SLang_get_error() || !SLang_input_pending(0))
(gdb) n
1734            slrn_do_keymap_key (Slrn_Current_Mode->keymap);
(gdb) n
1719       while (Slrn_Current_Mode != NULL)
(gdb) n
1721            if (SLKeyBoard_Quit)
(gdb) n
1727            (void) slrn_handle_interrupts ();
(gdb) n
1729            if (SLang_get_error() || !SLang_input_pending(0))
(gdb) n
1734            slrn_do_keymap_key (Slrn_Current_Mode->keymap);
(gdb) n
1719       while (Slrn_Current_Mode != NULL)
(gdb) n
1721            if (SLKeyBoard_Quit)
(gdb) n
1727            (void) slrn_handle_interrupts ();
(gdb) n
1729            if (SLang_get_error() || !SLang_input_pending(0))
(gdb) n
1734            slrn_do_keymap_key (Slrn_Current_Mode->keymap);
(gdb) n
1719       while (Slrn_Current_Mode != NULL)
#v-

Schöne Grüße, Jörg.
-- 
“Hey, dad, you see how this man can twist his fingers? Amazing, isn't
it?” “No, son, not really. He's been using Emacs for ten years…”

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