virtualize Port object; clean up automation tracks from track deletion

[ardour.git] / libs / pbd / pbd / stacktrace.h

diff --git a/libs/pbd/pbd/stacktrace.h b/libs/pbd/pbd/stacktrace.h
index c6da6ed79dbe69f85ceb73c268510542f449a95c..0a349dcaebbcdb67c4c99abbe3c3e9525eb39d9a 100644 (file)
--- a/libs/pbd/pbd/stacktrace.h
+++ b/libs/pbd/pbd/stacktrace.h
@@ -20,10 +20,95 @@
 #ifndef __libpbd_stacktrace_h__
 #define __libpbd_stacktrace_h__
 
+#include <iostream>
 #include <ostream>
+#include <glibmm/thread.h>
+#include <list>
 
 namespace PBD {
        void stacktrace (std::ostream& out, int levels = 0);
-}
+       void trace_twb();
+
+#ifdef HAVE_EXECINFO
+#include <execinfo.h>
+#include <stdlib.h>
+#endif
+
+template<typename T>
+class thing_with_backtrace 
+{
+  public:
+    thing_with_backtrace () {
+           trace_twb();
+#ifdef HAVE_EXECINFO
+           allocation_backtrace = new void*[50];
+           allocation_backtrace_size = backtrace (allocation_backtrace, 50);
+#else 
+           allocation_backtrace_size = 0;
+#endif
+           Glib::Mutex::Lock lm (all_mutex);
+           all.push_back (this);
+    }
+
+    thing_with_backtrace (const thing_with_backtrace<T>& other) {
+           trace_twb();
+#ifdef HAVE_EXECINFO
+           allocation_backtrace = new void*[50];
+           allocation_backtrace_size = backtrace (allocation_backtrace, 50);
+#else 
+           allocation_backtrace_size = 0;
+#endif
+           Glib::Mutex::Lock lm (all_mutex);
+           all.push_back (this);
+    }
+
+    ~thing_with_backtrace() { 
+           if (allocation_backtrace_size) {
+                   delete [] allocation_backtrace;
+           }
+           Glib::Mutex::Lock lm (all_mutex);
+           all.remove (this);
+    }
+
+    thing_with_backtrace<T>& operator= (const thing_with_backtrace<T>& other) {
+           /* no copyable members */
+           return *this;
+    }
+
+    static void peek_a_boo (std::ostream& stream) {
+#ifdef HAVE_EXECINFO
+           typename std::list<thing_with_backtrace<T>*>::iterator x;
+           for (x = all.begin(); x != all.end(); ++x) {
+                   char **strings;
+                   size_t i;
+                   
+                   strings = backtrace_symbols ((*x)->allocation_backtrace, (*x)->allocation_backtrace_size);
+                   
+                   if (strings) {
+                           stream << "--- ALLOCATED SHARED_PTR @ " << (*x) << std::endl;
+                           for (i = 0; i < (*x)->allocation_backtrace_size && i < 50U; i++) {
+                                   stream << strings[i] << std::endl;
+                           }
+                           free (strings);
+                   }
+           }
+#else
+           stream << "execinfo not defined for this platform" << std::endl;
+#endif
+    }
+
+private:
+    void** allocation_backtrace;
+    int allocation_backtrace_size;
+    static std::list<thing_with_backtrace<T>* > all;
+    static Glib::StaticMutex all_mutex;
+};
+
+template<typename T> std::list<PBD::thing_with_backtrace<T> *> PBD::thing_with_backtrace<T>::all;
+template<typename T> Glib::StaticMutex PBD::thing_with_backtrace<T>::all_mutex = GLIBMM_STATIC_MUTEX_INIT;
+
+} // namespace PBD
+
+
 
 #endif /* __libpbd_stacktrace_h__ */