I got the attached message and (reversed) patch in the Debian BTS. Daniel
-- /------------------- Daniel Burrows <[EMAIL PROTECTED]> ------------------\ | "Since TeX's value for infinity is quite low..." | | -- The LaTeX Companion | \---------------- The Turtle Moves! -- http://www.lspace.org ---------------/
--- Begin Message ---Package: libsigc++-2.0 Severity: normal Tags: patch sigc::slot can be used as a function pointer with the advantage of being able to add function arguments with sigc::bind, etc. However, disconnecting such slots does not work, because it doesn't do anything if there is no parent to notify. In my programs it is quite usual that there isn't a parent, because I know what happens to the slot, so I don't need a notification. However, I still need to invalidate the slot sometimes, and even slot = sigc::slot0 <void> (); doesn't work, because that simply calls disconnect (). The attached patch invalidates the slot on disconnect, even if there is no parent. -- System Information: Debian Release: testing/unstable APT prefers unstable APT policy: (500, 'unstable') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.11 Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)--- slot_base.cc 2005-09-02 15:39:48.000000000 +0200 +++ libsigc++-2.0.10/sigc++/functors/slot_base.cc 2005-02-11 11:59:07.000000000 +0100 @@ -40,11 +40,11 @@ void slot_rep::operator delete(void* p) void slot_rep::disconnect() { - call_ = 0; // Invalidate the slot. - // _Must_ be done here because parent_ might defer the actual - // destruction of the slot_rep and try to invoke it before that point. if (parent_) { + call_ = 0; // Invalidate the slot. + // _Must_ be done here because parent_ might defer the actual + // destruction of the slot_rep and try to invoke it before that point. void* data_ = parent_; parent_ = 0; // Just a precaution. (cleanup_)(data_); // Notify the parent (might lead to destruction of this!).
--- End Message ---
--- Begin Message ---I just noticed the patch is reversed, so you need -R to apply it. Sorry about that. -- I encourage people to send encrypted e-mail (see http://www.gnupg.org). If you have problems reading my e-mail, use a better reader. Please send the central message of e-mails as plain text in the message body, not as HTML and definitely not as MS Word. Please do not use the MS Word format for attachments either. For more information, see http://129.125.47.90/e-mail.html
signature.asc
Description: Digital signature
--- End Message ---
pgpOiH664dD0i.pgp
Description: PGP signature
_______________________________________________ libsigc-list mailing list libsigc-list@gnome.org http://mail.gnome.org/mailman/listinfo/libsigc-list
