2 Copyright (C) 2009 Paul Davis
3 From an idea by Carl Hetherington.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "libpbd-config.h"
32 #include <glibmm/thread.h>
33 #include <boost/shared_ptr.hpp>
35 #include "pbd/stacktrace.h"
40 std::ostream& print (std::ostream& str) const;
47 std::ostream& operator<< (std::ostream& str, const Backtrace& bt) { return bt.print (str); }
50 Backtrace::Backtrace()
53 size = ::backtrace (trace, 200);
58 Backtrace::print (std::ostream& str) const
65 strings = ::backtrace_symbols (trace, size);
68 for (i = 5; i < 5+18 && i < size; i++) {
69 str << strings[i] << std::endl;
83 BTPair (Backtrace* bt) : ref (bt), rel (0) {}
88 std::ostream& operator<<(std::ostream& str, const BTPair& btp) {
89 str << "*********************************************\n";
90 if (btp.ref) str << *btp.ref << std::endl;
92 if (btp.rel) str << *btp.rel << std::endl;
97 Backtrace* constructor;
98 Backtrace* destructor;
100 SPDebug (Backtrace* c) : constructor (c), destructor (0) {}
107 std::ostream& operator<< (std::ostream& str, const SPDebug& spd)
109 str << "Constructor :" << std::endl;
110 if (spd.constructor) {
111 str << *spd.constructor << std::endl;
117 typedef std::multimap<void const*,SPDebug*> PointerMap;
118 typedef std::map<void const*,const char*> IPointerMap;
123 IPointerMap interesting_pointers;
125 static Glib::StaticMutex the_lock;
128 is_interesting_object (void const* ptr)
134 return interesting_pointers.find (ptr) != interesting_pointers.end();
137 /* ------------------------------- */
140 boost_debug_shared_ptr_mark_interesting (void* ptr, const char* type)
142 Glib::Mutex::Lock guard (the_lock);
143 pair<void*,const char*> newpair (ptr, type);
144 interesting_pointers.insert (newpair);
145 // cerr << "Interesting object @ " << ptr << " of type " << type << endl;
149 boost_debug_shared_ptr_operator_equals (void const *sp, void const *obj, int)
151 if (is_interesting_object (obj)) {
152 cerr << "sp @ " << sp << " assigned\n";
157 boost_debug_shared_ptr_reset (void const *sp, void const *obj, int)
159 if (is_interesting_object (obj)) {
160 cerr << "sp @ " << sp << " reset\n";
165 boost_debug_shared_ptr_destructor (void const *sp, void const *obj, int use_count)
167 Glib::Mutex::Lock guard (the_lock);
168 PointerMap::iterator x = sptrs.find (sp);
170 if (x != sptrs.end()) {
172 // cerr << "Removed sp for " << obj << " @ " << sp << endl;
177 boost_debug_shared_ptr_constructor (void const *sp, void const *obj, int use_count)
179 if (is_interesting_object (obj)) {
180 Glib::Mutex::Lock guard (the_lock);
181 pair<void const*, SPDebug*> newpair;
184 newpair.second = new SPDebug (new Backtrace());
186 sptrs.insert (newpair);
187 // cerr << "Stored constructor for " << obj << " @ " << sp << endl;
192 boost_debug_list_ptrs ()
194 Glib::Mutex::Lock guard (the_lock);
197 cerr << "There are no dangling shared ptrs\n";
199 for (PointerMap::iterator x = sptrs.begin(); x != sptrs.end(); ++x) {
200 cerr << "Shared ptr @ " << x->first << " history: "
209 void sp_scalar_constructor_hook( void * object, std::size_t size, void * pn )
213 void sp_scalar_destructor_hook( void * object, std::size_t size, void * pn )
217 void sp_counter_ref_hook (void* pn, long use_count)
221 void sp_counter_release_hook (void* pn, long use_count)
225 void sp_array_constructor_hook(void * p)
229 void sp_array_destructor_hook(void * p)
233 void sp_scalar_constructor_hook(void * p)
237 void sp_scalar_destructor_hook(void * p)