Caolán McNamara
12 years ago
parent
8bd8d22423
commit
95af89df0e
@ -0,0 +1,74 @@
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From b0759366fc6cdda2db2f2cb4208df36c1b1fe8fc Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Caol=C3=A1n=20McNamara?= <caolanm@redhat.com>
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Date: Wed, 12 Sep 2012 13:44:09 +0100
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Subject: [PATCH] Resolves: rhbz#855541 XIOError handler multithread woes
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We have two threads using X, on an XIOError both
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threads call their XIOError handlers and two
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calls to exit trample all over eachother.
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Change-Id: I20defc6f84cc6ea2372a0d6c979e8078fe920a88
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---
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vcl/unx/generic/app/saldata.cxx | 6 ++++++
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vcl/unx/gtk/app/gtkdata.cxx | 14 ++++++++++++++
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2 files changed, 20 insertions(+)
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diff --git a/vcl/unx/generic/app/saldata.cxx b/vcl/unx/generic/app/saldata.cxx
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index 1fb6a7a..0596dce 100644
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--- a/vcl/unx/generic/app/saldata.cxx
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+++ b/vcl/unx/generic/app/saldata.cxx
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@@ -322,6 +322,12 @@ int X11SalData::XErrorHdl( Display *pDisplay, XErrorEvent *pEvent )
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int X11SalData::XIOErrorHdl( Display * )
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{
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+ if (::osl::Thread::getCurrentIdentifier() != Application::GetMainThreadIdentifier())
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+ {
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+ pthread_exit(NULL);
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+ return 0;
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+ }
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+
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/* #106197# hack: until a real shutdown procedure exists
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* _exit ASAP
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*/
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diff --git a/vcl/unx/gtk/app/gtkdata.cxx b/vcl/unx/gtk/app/gtkdata.cxx
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index 8f3151c..867883f 100644
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--- a/vcl/unx/gtk/app/gtkdata.cxx
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+++ b/vcl/unx/gtk/app/gtkdata.cxx
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@@ -526,6 +526,18 @@ GtkData::GtkData( SalInstance *pInstance )
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m_aDispatchCondition = osl_createCondition();
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}
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+XIOErrorHandler aOrigXIOErrorHandler = NULL;
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+
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+int XIOErrorHdl(Display *pDisplay)
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+{
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+ if (::osl::Thread::getCurrentIdentifier() != Application::GetMainThreadIdentifier())
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+ {
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+ pthread_exit(NULL);
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+ return 0;
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+ }
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+ return aOrigXIOErrorHandler ? aOrigXIOErrorHandler(pDisplay) : 0;
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+}
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+
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GtkData::~GtkData()
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{
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Yield( true, true );
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@@ -545,6 +557,7 @@ GtkData::~GtkData()
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osl_destroyCondition( m_aDispatchCondition );
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osl_releaseMutex( m_aDispatchMutex );
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osl_destroyMutex( m_aDispatchMutex );
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+ XSetIOErrorHandler(aOrigXIOErrorHandler);
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}
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void GtkData::Dispose()
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@@ -664,6 +677,7 @@ void GtkData::Init()
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// init gtk/gdk
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gtk_init_check( &nParams, &pCmdLineAry );
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gdk_error_trap_push();
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+ aOrigXIOErrorHandler = XSetIOErrorHandler(XIOErrorHdl);
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for (i = 0; i < nParams; i++ )
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g_free( pCmdLineAry[i] );
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--
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1.7.11.4
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