[ekiga/v4_0] Made sure the STUN detector code doesn't crash if we quit-at-startup

[Eugen Dedu <ededu src gnome org>]

commit 1a31a3c7d7d125c3e9fc23fa419e063b57281d48
Author: Julien Puydt <jpuydt free fr>
Date:   Mon Feb 11 10:59:39 2013 +0100

    Made sure the STUN detector code doesn't crash if we quit-at-startup

 lib/engine/components/opal/opal-call-manager.cpp |    9 +++++++--
 lib/engine/components/opal/opal-call-manager.h   |    1 +
 2 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/lib/engine/components/opal/opal-call-manager.cpp 
b/lib/engine/components/opal/opal-call-manager.cpp
index 17bc02e..9de8303 100644
--- a/lib/engine/components/opal/opal-call-manager.cpp
+++ b/lib/engine/components/opal/opal-call-manager.cpp
@@ -103,6 +103,8 @@ using namespace Opal;
 CallManager::CallManager (Ekiga::ServiceCore & _core)
   : core (_core)
 {
+  stun_thread = 0;
+
   /* Initialise the endpoint parameters */
 #if P_HAS_IPV6
   char * ekiga_ipv6 = getenv("EKIGA_IPV6");
@@ -159,6 +161,8 @@ CallManager::CallManager (Ekiga::ServiceCore & _core)
 
 CallManager::~CallManager ()
 {
+  if (stun_thread)
+    stun_thread->WaitForTermination ();
   ClearAllCalls (OpalConnection::EndedByLocalUser, true);
   ShutDownEndpoints ();
 
@@ -529,10 +533,10 @@ void CallManager::set_stun_server (const std::string & server)
 void CallManager::set_stun_enabled (bool enabled)
 {
   stun_enabled = enabled;
-  if (stun_enabled) {
+  if (stun_enabled && stun_thread) {
 
     // Ready
-    new StunDetector (stun_server, *this, queue);
+    stun_thread = new StunDetector (stun_server, *this, queue);
     patience = 20;
     Ekiga::Runtime::run_in_main (boost::bind (&CallManager::HandleSTUNResult, this), 1);
   } else
@@ -806,6 +810,7 @@ CallManager::HandleSTUNResult ()
     PSTUNClient::NatTypes result
       = (PSTUNClient::NatTypes)(GPOINTER_TO_UINT (g_async_queue_pop (queue))-1);
     got_answer = true;
+    stun_thread = 0;
 
     if (result == PSTUNClient::SymmetricNat
        || result == PSTUNClient::BlockedNat
diff --git a/lib/engine/components/opal/opal-call-manager.h b/lib/engine/components/opal/opal-call-manager.h
index 7acb8b9..5b6ba4d 100644
--- a/lib/engine/components/opal/opal-call-manager.h
+++ b/lib/engine/components/opal/opal-call-manager.h
@@ -166,6 +166,7 @@ private:
 
     void GetAllowedFormats (OpalMediaFormatList & full_list);
 
+    PThread* stun_thread;
     void HandleSTUNResult ();
 
     void ReportSTUNError (const std::string error);