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libreoffice/0001-Resolves-rhbz-855541-X...

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From b0759366fc6cdda2db2f2cb4208df36c1b1fe8fc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Caol=C3=A1n=20McNamara?= <caolanm@redhat.com>
Date: Wed, 12 Sep 2012 13:44:09 +0100
Subject: [PATCH] Resolves: rhbz#855541 XIOError handler multithread woes
We have two threads using X, on an XIOError both
threads call their XIOError handlers and two
calls to exit trample all over eachother.
Change-Id: I20defc6f84cc6ea2372a0d6c979e8078fe920a88
---
vcl/unx/generic/app/saldata.cxx | 6 ++++++
vcl/unx/gtk/app/gtkdata.cxx | 14 ++++++++++++++
2 files changed, 20 insertions(+)
diff --git a/vcl/unx/generic/app/saldata.cxx b/vcl/unx/generic/app/saldata.cxx
index 1fb6a7a..0596dce 100644
--- a/vcl/unx/generic/app/saldata.cxx
+++ b/vcl/unx/generic/app/saldata.cxx
@@ -322,6 +322,12 @@ int X11SalData::XErrorHdl( Display *pDisplay, XErrorEvent *pEvent )
int X11SalData::XIOErrorHdl( Display * )
{
+ if (::osl::Thread::getCurrentIdentifier() != Application::GetMainThreadIdentifier())
+ {
+ pthread_exit(NULL);
+ return 0;
+ }
+
/* #106197# hack: until a real shutdown procedure exists
* _exit ASAP
*/
diff --git a/vcl/unx/gtk/app/gtkdata.cxx b/vcl/unx/gtk/app/gtkdata.cxx
index 8f3151c..867883f 100644
--- a/vcl/unx/gtk/app/gtkdata.cxx
+++ b/vcl/unx/gtk/app/gtkdata.cxx
@@ -526,6 +526,18 @@ GtkData::GtkData( SalInstance *pInstance )
m_aDispatchCondition = osl_createCondition();
}
+XIOErrorHandler aOrigXIOErrorHandler = NULL;
+
+int XIOErrorHdl(Display *pDisplay)
+{
+ if (::osl::Thread::getCurrentIdentifier() != Application::GetMainThreadIdentifier())
+ {
+ pthread_exit(NULL);
+ return 0;
+ }
+ return aOrigXIOErrorHandler ? aOrigXIOErrorHandler(pDisplay) : 0;
+}
+
GtkData::~GtkData()
{
Yield( true, true );
@@ -545,6 +557,7 @@ GtkData::~GtkData()
osl_destroyCondition( m_aDispatchCondition );
osl_releaseMutex( m_aDispatchMutex );
osl_destroyMutex( m_aDispatchMutex );
+ XSetIOErrorHandler(aOrigXIOErrorHandler);
}
void GtkData::Dispose()
@@ -664,6 +677,7 @@ void GtkData::Init()
// init gtk/gdk
gtk_init_check( &nParams, &pCmdLineAry );
gdk_error_trap_push();
+ aOrigXIOErrorHandler = XSetIOErrorHandler(XIOErrorHdl);
for (i = 0; i < nParams; i++ )
g_free( pCmdLineAry[i] );
--
1.7.11.4