Paul Davis
449aab3c46
git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf
115 lines
3.1 KiB
C++
115 lines
3.1 KiB
C++
/*
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Copyright (C) 2000-2007 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __libpbd_stacktrace_h__
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#define __libpbd_stacktrace_h__
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#include <iostream>
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#include <ostream>
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#include <glibmm/thread.h>
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#include <list>
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namespace PBD {
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void stacktrace (std::ostream& out, int levels = 0);
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void trace_twb();
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#ifdef HAVE_EXECINFO
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#include <execinfo.h>
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#include <stdlib.h>
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#endif
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template<typename T>
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class thing_with_backtrace
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{
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public:
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thing_with_backtrace () {
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trace_twb();
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#ifdef HAVE_EXECINFO
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allocation_backtrace = new void*[50];
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allocation_backtrace_size = backtrace (allocation_backtrace, 50);
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#else
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allocation_backtrace_size = 0;
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#endif
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Glib::Mutex::Lock lm (all_mutex);
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all.push_back (this);
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}
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thing_with_backtrace (const thing_with_backtrace<T>& other) {
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trace_twb();
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#ifdef HAVE_EXECINFO
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allocation_backtrace = new void*[50];
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allocation_backtrace_size = backtrace (allocation_backtrace, 50);
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#else
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allocation_backtrace_size = 0;
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#endif
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Glib::Mutex::Lock lm (all_mutex);
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all.push_back (this);
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}
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~thing_with_backtrace() {
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if (allocation_backtrace_size) {
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delete [] allocation_backtrace;
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}
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Glib::Mutex::Lock lm (all_mutex);
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all.remove (this);
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}
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thing_with_backtrace<T>& operator= (const thing_with_backtrace<T>& other) {
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/* no copyable members */
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return *this;
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}
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static void peek_a_boo (std::ostream& stream) {
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#ifdef HAVE_EXECINFO
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typename std::list<thing_with_backtrace<T>*>::iterator x;
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for (x = all.begin(); x != all.end(); ++x) {
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char **strings;
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size_t i;
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strings = backtrace_symbols ((*x)->allocation_backtrace, (*x)->allocation_backtrace_size);
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if (strings) {
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stream << "--- ALLOCATED SHARED_PTR @ " << (*x) << std::endl;
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for (i = 0; i < (*x)->allocation_backtrace_size && i < 50U; i++) {
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stream << strings[i] << std::endl;
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}
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free (strings);
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}
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}
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#else
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stream << "execinfo not defined for this platform" << std::endl;
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#endif
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}
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private:
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void** allocation_backtrace;
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int allocation_backtrace_size;
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static std::list<thing_with_backtrace<T>* > all;
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static Glib::StaticMutex all_mutex;
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};
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template<typename T> std::list<PBD::thing_with_backtrace<T> *> PBD::thing_with_backtrace<T>::all;
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template<typename T> Glib::StaticMutex PBD::thing_with_backtrace<T>::all_mutex = GLIBMM_STATIC_MUTEX_INIT;
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} // namespace PBD
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#endif /* __libpbd_stacktrace_h__ */
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