Client|libcore: Avoid a crash during shutdown

Don't bother deleting recycled memory during an abnormal shutdown.

doomsday/apps/client/src/dd_main.cpp

@@ -45,6 +45,7 @@
 #include <de/timer.h>
 #include <de/ArrayValue>
 #include <de/CommandLine>
+#include <de/Garbage>
 #include <de/NativeFile>
 #include <de/PackageLoader>
 #include <de/LinkFile>
@@ -601,6 +602,8 @@ void App_AbnormalShutdown(char const *message)
     //Sys_Shutdown();
     DD_Shutdown();
 
+    Garbage_ForgetAndLeak(); // At this point, it's too late.
+
     // Get outta here.
     exit(1);
 }

doomsday/sdk/libcore/include/de/core/garbage.h

@@ -87,6 +87,13 @@ DENG2_PUBLIC void Garbage_RemoveIfTrashed(void *ptr);
  */
 DENG2_PUBLIC void Garbage_Recycle(void);
 
+/**
+ * Clears the garbage contents without actually freeing any memory. This
+ * should only be called under exceptional circumstances to quickly dismiss
+ * all recycled memory. Everything in the trash will leak!
+ */
+DENG2_PUBLIC void Garbage_ForgetAndLeak(void);
+
 /**
  * Frees all pointers in every thread's garbage if they are using a specific
  * destructor function.

doomsday/sdk/libcore/src/core/garbage.cpp

@@ -79,6 +79,11 @@ struct Garbage : public Lockable
             allocs.clear();
         }
     }
+
+    void forgetAndLeak()
+    {
+        allocs.clear(); // Oh well...
+    }
 };
 
 struct Garbages : public std::map<QThread *, Garbage *>, public Lockable
@@ -109,6 +114,16 @@ struct Garbages : public std::map<QThread *, Garbage *>, public Lockable
             i->second->recycle(func);
         }
     }
+
+    void forgetAndLeak()
+    {
+        DENG2_GUARD(this);
+        for (iterator i = begin(); i != end(); ++i)
+        {
+            i->second->forgetAndLeak();
+        }
+        clear();
+    }
 };
 
 } // namespace internal
@@ -193,6 +208,11 @@ void Garbage_Recycle(void)
     g->recycle();
 }
 
+void Garbage_ForgetAndLeak(void)
+{
+    garbages.forgetAndLeak();
+}
+
 void Garbage_RecycleAllWithDestructor(GarbageDestructor destructor)
 {
     garbages.recycleWithDestructor(destructor);