Hello,
there is a crash and i can tell the reason. As i have no time investigate further i post to the list
what i already found out.
to reproduce:
1. start lyx
2. open a document that contains insets
3. open another window (new window)
4. close the second window
5. close the document in the first window -> crash (sometimes)
the reason:
- in step 3 an instance of class Dialog is created for the second window
- in step 4 this instance is deleted again
- in step 5 the signal hideSlot is sent to the already deleted dialog. This
sometimes gives a segfault.
the reason is easy to verify from debug output if you apply the attached patch.
I think it's again a missing disconnect() somewhere.
Bernhard
Index: src/frontends/Dialogs.cpp
===================================================================
--- src/frontends/Dialogs.cpp (revision 18642)
+++ src/frontends/Dialogs.cpp (working copy)
@@ -21,6 +21,7 @@
#include <boost/signal.hpp>
#include <boost/bind.hpp>
+#include "debug.h"
namespace lyx {
@@ -70,10 +71,14 @@
Dialogs::Dialogs(LyXView & lyxview)
: lyxview_(lyxview), in_show_(false)
{
+ lyxerr << "create " << unsigned(this) << std::endl;
// Connect signals
hideSignal().connect(boost::bind(&Dialogs::hideSlot, this, _1, _2));
}
+Dialogs::~Dialogs() {
+ lyxerr << "delete " << unsigned(this) << std::endl;
+}
Dialog * Dialogs::find_or_build(string const & name)
{
@@ -147,6 +152,7 @@
void Dialogs::hideSlot(string const & name, Inset * inset)
{
+ lyxerr << "hide " << unsigned(this) << " " << name << std::endl;
std::map<string, DialogPtr>::const_iterator it =
dialogs_.find(name);
if (it == dialogs_.end())
Index: src/frontends/Dialogs.h
===================================================================
--- src/frontends/Dialogs.h (revision 18642)
+++ src/frontends/Dialogs.h (working copy)
@@ -39,6 +39,8 @@
* cursor moves to a position where the corresponding inset is not
* allowed.
*/
+ ~Dialogs();
+
void checkStatus();
/// Are the tooltips on or off?
