/////////////////////////////////////////////////////////////////////////////
-// Name: memory.cpp
+// Name: src/common/memory.cpp
// Purpose: Memory checking implementation
// Author: Arthur Seaton, Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Copyright: (c) Julian Smart
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "memory.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
-#ifndef WX_PRECOMP
-#include "wx/defs.h"
-#endif
+#if wxUSE_MEMORY_TRACING || wxUSE_DEBUG_CONTEXT
-#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
+#include "wx/memory.h"
-#ifdef __GNUG__
-// #pragma implementation
+#ifndef WX_PRECOMP
+ #ifdef __WINDOWS__
+ #include "wx/msw/wrapwin.h"
+ #endif
+ #include "wx/utils.h"
+ #include "wx/app.h"
+ #include "wx/hash.h"
+ #include "wx/log.h"
#endif
-#ifndef WX_PRECOMP
-#include "wx/utils.h"
-#include "wx/app.h"
+#if wxUSE_THREADS
+ #include "wx/thread.h"
#endif
-#include "wx/log.h"
#include <stdlib.h>
#include "wx/ioswrap.h"
-#if wxUSE_IOSTREAMH
- #include <fstream.h>
-#else
- #include <fstream>
-#endif
-
-#if !defined(__WATCOMC__) && !(defined(__VMS__) && ( __VMS_VER < 70000000 ) )\
- && !defined( __MWERKS__ ) && !defined(__SALFORDC__)
+#if !defined(__WATCOMC__) && !(defined(__VMS__) && ( __VMS_VER < 70000000 ) )
#include <memory.h>
#endif
#include <stdarg.h>
#include <string.h>
-#ifdef __WXMSW__
-#include <windows.h>
-
-#ifdef GetClassInfo
-#undef GetClassInfo
-#endif
-
-#ifdef GetClassName
-#undef GetClassName
-#endif
-
+#if wxUSE_THREADS
+#define USE_THREADSAFE_MEMORY_ALLOCATION 1
+#else
+#define USE_THREADSAFE_MEMORY_ALLOCATION 0
#endif
-#include "wx/memory.h"
#ifdef new
#undef new
*/
void wxMemStruct::ErrorMsg (const char * mesg)
{
- wxLogMessage(wxT("wxWindows memory checking error: %s"), mesg);
+ wxLogMessage(wxT("wxWidgets memory checking error: %s"), mesg);
PrintNode ();
-
-// << m_fileName << ' ' << m_lineNum << endl;
}
/*
*/
void wxMemStruct::ErrorMsg ()
{
- wxLogMessage(wxT("wxWindows over/underwrite memory error:"));
+ wxLogMessage(wxT("wxWidgets over/underwrite memory error:"));
PrintNode ();
-
-// cerr << m_fileName << ' ' << m_lineNum << endl;
}
*/
int wxMemStruct::AssertList ()
{
- if (wxDebugContext::GetHead () != 0 && ! (wxDebugContext::GetHead ())->AssertIt () ||
- wxDebugContext::GetTail () != 0 && ! wxDebugContext::GetTail ()->AssertIt ()) {
+ if ((wxDebugContext::GetHead() && !wxDebugContext::GetHead()->AssertIt()) ||
+ (wxDebugContext::GetTail() && !wxDebugContext::GetTail()->AssertIt()))
+ {
ErrorMsg ("Head or tail pointers trashed");
return 0;
}
// Let's put this in standard form so IDEs can load the file at the appropriate
// line
- wxString msg(wxT(""));
+ wxString msg;
if (m_fileName)
msg.Printf(wxT("%s(%d): "), m_fileName, (int)m_lineNum);
msg += wxT("object");
wxString msg2;
- msg2.Printf(wxT(" at $%lX, size %d"), (long)GetActualData(), (int)RequestSize());
+ msg2.Printf(wxT(" at 0x%lX, size %d"), (long)GetActualData(), (int)RequestSize());
msg += msg2;
wxLogMessage(msg);
}
else
{
- wxString msg("");
+ wxString msg;
if (m_fileName)
msg.Printf(wxT("%s(%d): "), m_fileName, (int)m_lineNum);
msg += wxT("non-object data");
wxString msg2;
- msg2.Printf(wxT(" at $%lX, size %d\n"), (long)GetActualData(), (int)RequestSize());
+ msg2.Printf(wxT(" at 0x%lX, size %d\n"), (long)GetActualData(), (int)RequestSize());
msg += msg2;
wxLogMessage(msg);
{
wxObject *obj = (wxObject *)m_actualData;
- wxString msg(wxT(""));
+ wxString msg;
if (m_fileName)
msg.Printf(wxT("%s(%d): "), m_fileName, (int)m_lineNum);
else
msg += wxT("unknown object class");
- wxString msg2("");
- msg2.Printf(wxT(" at $%lX, size %d"), (long)GetActualData(), (int)RequestSize());
+ wxString msg2;
+ msg2.Printf(wxT(" at 0x%lX, size %d"), (long)GetActualData(), (int)RequestSize());
msg += msg2;
- wxLogMessage(msg);
+ wxDebugContext::OutputDumpLine(msg.c_str());
}
else
{
- wxString msg(wxT(""));
+ wxString msg;
if (m_fileName)
msg.Printf(wxT("%s(%d): "), m_fileName, (int)m_lineNum);
- wxString msg2("");
- msg2.Printf(wxT("non-object data at $%lX, size %d"), (long)GetActualData(), (int)RequestSize() );
+ wxString msg2;
+ msg2.Printf(wxT("non-object data at 0x%lX, size %d"), (long)GetActualData(), (int)RequestSize() );
msg += msg2;
- wxLogMessage(msg);
+ wxDebugContext::OutputDumpLine(msg.c_str());
}
}
wxMemStruct *wxDebugContext::m_head = NULL;
wxMemStruct *wxDebugContext::m_tail = NULL;
-// ostream *wxDebugContext::m_debugStream = NULL;
-// streambuf *wxDebugContext::m_streamBuf = NULL;
-
-// Must initialise these in wxEntry, and then delete them just before wxEntry exits
-streambuf *wxDebugContext::m_streamBuf = NULL;
-ostream *wxDebugContext::m_debugStream = NULL;
-bool wxDebugContext::m_checkPrevious = FALSE;
+bool wxDebugContext::m_checkPrevious = false;
int wxDebugContext::debugLevel = 1;
-bool wxDebugContext::debugOn = TRUE;
+bool wxDebugContext::debugOn = true;
wxMemStruct *wxDebugContext::checkPoint = NULL;
// For faster alignment calculation
int wxDebugContext::m_balign = (int)((char *)&markerCalc[1] - (char*)&markerCalc[0]);
int wxDebugContext::m_balignmask = (int)((char *)&markerCalc[1] - (char*)&markerCalc[0]) - 1;
+// Pointer to global function to call at shutdown
+wxShutdownNotifyFunction wxDebugContext::sm_shutdownFn;
+
wxDebugContext::wxDebugContext(void)
{
-// m_streamBuf = new wxDebugStreamBuf;
-// m_debugStream = new ostream(m_streamBuf);
}
wxDebugContext::~wxDebugContext(void)
{
- SetStream(NULL, NULL);
-}
-
-/*
- * It's bizarre, but with BC++ 4.5, the value of str changes
- * between SetFile and SetStream.
- */
-
-void wxDebugContext::SetStream(ostream *str, streambuf *buf)
-{
- if (m_debugStream)
- {
- m_debugStream->flush();
- delete m_debugStream;
- }
- m_debugStream = NULL;
-
- // Not allowed in Watcom (~streambuf is protected).
- // Is this trying to say something significant to us??
-#ifndef __WATCOMC__
- if (m_streamBuf)
- {
- streambuf* oldBuf = m_streamBuf;
- m_streamBuf = NULL;
- delete oldBuf;
- }
-#endif
- m_streamBuf = buf;
- m_debugStream = str;
-}
-
-bool wxDebugContext::SetFile(const wxString& file)
-{
- ofstream *str = new ofstream(file.mb_str());
-
- if (str->bad())
- {
- delete str;
- return FALSE;
- }
- else
- {
- SetStream(str);
- return TRUE;
- }
-}
-
-bool wxDebugContext::SetStandardError(void)
-{
- // Obsolete
-#if 0
-#if !defined(_WINDLL)
- wxDebugStreamBuf *buf = new wxDebugStreamBuf;
- ostream *stream = new ostream(m_streamBuf);
- SetStream(stream, buf);
- return TRUE;
-#else
- return FALSE;
-#endif
-#endif
- return FALSE;
}
-
/*
Work out the positions of the markers by creating an array of 2 markers
and comparing the addresses of the 2 elements. Use this number as the
{
// Added by Terry Farnham <TJRT@pacbell.net> to replace
// slow GetPadding call.
- int padb;
+ int padb;
- padb = size & m_balignmask;
- if(padb)
- return(size + m_balign - padb);
- else
- return(size);
-
-// Old (slow) code
-#if 0
- return size + GetPadding (size);
-#endif
+ padb = size & m_balignmask;
+ if(padb)
+ return(size + m_balign - padb);
+ else
+ return(size);
}
/*
*/
bool wxDebugContext::PrintList (void)
{
-#ifdef __WXDEBUG__
-// if (!HasStream())
-// return FALSE;
-
- TraverseList ((PmSFV)&wxMemStruct::PrintNode, (checkPoint ? checkPoint->m_next : (wxMemStruct*)NULL));
+ TraverseList ((PmSFV)&wxMemStruct::PrintNode, (checkPoint ? checkPoint->m_next : NULL));
- return TRUE;
-#else
- return FALSE;
-#endif
+ return true;
}
bool wxDebugContext::Dump(void)
{
-#ifdef __WXDEBUG__
-// if (!HasStream())
-// return FALSE;
-
-// if (TRUE)
{
- wxChar* appName = wxT("application");
- wxString appNameStr("");
+ const wxChar* appName = wxT("application");
+ wxString appNameStr;
if (wxTheApp)
{
appNameStr = wxTheApp->GetAppName();
- appName = WXSTRINGCAST appNameStr;
- wxLogMessage(wxT("----- Memory dump of %s at %s -----"), appName, WXSTRINGCAST wxNow() );
+ appName = appNameStr.c_str();
+ OutputDumpLine(wxT("----- Memory dump of %s at %s -----"), appName, static_cast<const wxChar *>(wxNow().c_str()));
}
else
{
- wxLogMessage( wxT("----- Memory dump -----") );
+ OutputDumpLine( wxT("----- Memory dump -----") );
}
}
- TraverseList ((PmSFV)&wxMemStruct::Dump, (checkPoint ? checkPoint->m_next : (wxMemStruct*)NULL));
- wxLogMessage( wxT("") );
- wxLogMessage( wxT("") );
+ TraverseList ((PmSFV)&wxMemStruct::Dump, (checkPoint ? checkPoint->m_next : NULL));
- return TRUE;
-#else
- return FALSE;
-#endif
+ OutputDumpLine(wxEmptyString);
+ OutputDumpLine(wxEmptyString);
+
+ return true;
}
struct wxDebugStatsStruct
bool wxDebugContext::PrintStatistics(bool detailed)
{
-#ifdef __WXDEBUG__
-// if (!HasStream())
-// return FALSE;
-
-// if (TRUE)
{
- wxChar* appName = wxT("application");
- wxString appNameStr(wxT(""));
+ const wxChar* appName = wxT("application");
+ wxString appNameStr;
if (wxTheApp)
{
appNameStr = wxTheApp->GetAppName();
- appName = WXSTRINGCAST appNameStr;
- wxLogMessage(wxT("----- Memory statistics of %s at %s -----"), appName, WXSTRINGCAST wxNow() );
+ appName = appNameStr.c_str();
+ OutputDumpLine(wxT("----- Memory statistics of %s at %s -----"), appName, static_cast<const wxChar *>(wxNow().c_str()));
}
else
{
- wxLogMessage( wxT("----- Memory statistics -----") );
+ OutputDumpLine( wxT("----- Memory statistics -----") );
}
}
bool currentMode = GetDebugMode();
- SetDebugMode(FALSE);
+ SetDebugMode(false);
long noNonObjectNodes = 0;
long noObjectNodes = 0;
wxDebugStatsStruct *list = NULL;
- wxMemStruct *from = (checkPoint ? checkPoint->m_next : (wxMemStruct*)NULL );
+ wxMemStruct *from = (checkPoint ? checkPoint->m_next : NULL );
if (!from)
from = wxDebugContext::GetHead ();
for (st = from; st != 0; st = st->m_next)
{
void* data = st->GetActualData();
-// if (detailed && (data != (void*)m_debugStream) && (data != (void*) m_streamBuf))
- if (detailed && (data != (void*) wxLog::GetActiveTarget()))
+ if (detailed && (data != (void*) wxLog::GetActiveTarget()))
{
- wxChar *className = wxT("nonobject");
+ wxChar *className = (wxChar*) wxT("nonobject");
if (st->m_isObject && st->GetActualData())
{
wxObject *obj = (wxObject *)st->GetActualData();
if (obj->GetClassInfo()->GetClassName())
- className = obj->GetClassInfo()->GetClassName();
+ className = (wxChar*)obj->GetClassInfo()->GetClassName();
}
wxDebugStatsStruct *stats = FindStatsStruct(list, className);
if (!stats)
stats->totalSize += st->RequestSize();
}
-// if ((data != (void*)m_debugStream) && (data != (void*) m_streamBuf))
if (data != (void*) wxLog::GetActiveTarget())
{
totalSize += st->RequestSize();
{
while (list)
{
- wxLogMessage(wxT("%ld objects of class %s, total size %ld"),
+ OutputDumpLine(wxT("%ld objects of class %s, total size %ld"),
list->instanceCount, list->instanceClass, list->totalSize);
wxDebugStatsStruct *old = list;
list = old->next;
free((char *)old);
}
- wxLogMessage(wxT(""));
+ OutputDumpLine(wxEmptyString);
}
SetDebugMode(currentMode);
- wxLogMessage(wxT("Number of object items: %ld"), noObjectNodes);
- wxLogMessage(wxT("Number of non-object items: %ld"), noNonObjectNodes);
- wxLogMessage(wxT("Total allocated size: %ld"), totalSize);
- wxLogMessage(wxT(""));
- wxLogMessage(wxT(""));
+ OutputDumpLine(wxT("Number of object items: %ld"), noObjectNodes);
+ OutputDumpLine(wxT("Number of non-object items: %ld"), noNonObjectNodes);
+ OutputDumpLine(wxT("Total allocated size: %ld"), totalSize);
+ OutputDumpLine(wxEmptyString);
+ OutputDumpLine(wxEmptyString);
- return TRUE;
-#else
- return FALSE;
-#endif
+ return true;
}
bool wxDebugContext::PrintClasses(void)
{
-// if (!HasStream())
-// return FALSE;
-
-// if (TRUE)
{
- wxChar* appName = wxT("application");
- wxString appNameStr(wxT(""));
+ const wxChar* appName = wxT("application");
+ wxString appNameStr;
if (wxTheApp)
{
appNameStr = wxTheApp->GetAppName();
- appName = WXSTRINGCAST appNameStr;
+ appName = appNameStr.c_str();
wxLogMessage(wxT("----- Classes in %s -----"), appName);
}
}
int n = 0;
- wxNode *node;
- wxClassInfo *info;
+ const wxClassInfo *info;
- wxClassInfo::sm_classTable->BeginFind();
- node = wxClassInfo::sm_classTable->Next();
- while (node)
+ for (wxClassInfo::const_iterator node = wxClassInfo::begin_classinfo(),
+ end = wxClassInfo::end_classinfo();
+ node != end; ++node)
{
- info = (wxClassInfo *)node->Data();
+ info = *node;
if (info->GetClassName())
{
wxString msg(info->GetClassName());
wxLogMessage(msg);
}
- node = wxClassInfo::sm_classTable->Next();
n ++;
}
- wxLogMessage(wxT(""));
+ wxLogMessage(wxEmptyString);
wxLogMessage(wxT("There are %d classes derived from wxObject."), n);
- wxLogMessage(wxT(""));
- wxLogMessage(wxT(""));
- return TRUE;
+ wxLogMessage(wxEmptyString);
+ wxLogMessage(wxEmptyString);
+ return true;
}
void wxDebugContext::SetCheckpoint(bool all)
{
int nFailures = 0;
- wxMemStruct *from = (checkPoint ? checkPoint->m_next : (wxMemStruct*)NULL );
+ wxMemStruct *from = (checkPoint ? checkPoint->m_next : NULL );
if (!from || checkAll)
from = wxDebugContext::GetHead ();
for (wxMemStruct * st = from; st != 0; st = st->m_next)
{
void* data = st->GetActualData();
-// if ((data != (void*)m_debugStream) && (data != (void*) m_streamBuf))
if (data != (void*) wxLog::GetActiveTarget())
n ++;
}
return n ;
}
+// This function is used to output the dump
+void wxDebugContext::OutputDumpLine(const wxChar *szFormat, ...)
+{
+ // a buffer of 2048 bytes should be long enough for a file name
+ // and a class name
+ wxChar buf[2048];
+ int count;
+ va_list argptr;
+ va_start(argptr, szFormat);
+ buf[WXSIZEOF(buf)-1] = wxT('\0');
+
+ // keep 3 bytes for a \r\n\0
+ count = wxVsnprintf(buf, WXSIZEOF(buf)-3, szFormat, argptr);
+
+ if ( count < 0 )
+ count = WXSIZEOF(buf)-3;
+ buf[count]=wxT('\r');
+ buf[count+1]=wxT('\n');
+ buf[count+2]=wxT('\0');
+
+ wxMessageOutputDebug dbgout;
+ dbgout.Printf(buf);
+}
+
+void wxDebugContext::SetShutdownNotifyFunction(wxShutdownNotifyFunction shutdownFn)
+{
+ sm_shutdownFn = shutdownFn;
+}
+
+
+#if USE_THREADSAFE_MEMORY_ALLOCATION
+static bool memSectionOk = false;
+
+class MemoryCriticalSection : public wxCriticalSection
+{
+public:
+ MemoryCriticalSection() {
+ memSectionOk = true;
+ }
+ ~MemoryCriticalSection() {
+ memSectionOk = false;
+ }
+};
+
+class MemoryCriticalSectionLocker
+{
+public:
+ inline MemoryCriticalSectionLocker(wxCriticalSection& critsect)
+ : m_critsect(critsect), m_locked(memSectionOk) { if(m_locked) m_critsect.Enter(); }
+ inline ~MemoryCriticalSectionLocker() { if(m_locked) m_critsect.Leave(); }
+
+private:
+ // no assignment operator nor copy ctor
+ MemoryCriticalSectionLocker(const MemoryCriticalSectionLocker&);
+ MemoryCriticalSectionLocker& operator=(const MemoryCriticalSectionLocker&);
+
+ wxCriticalSection& m_critsect;
+ bool m_locked;
+};
+
+static MemoryCriticalSection memLocker;
+
+#endif // USE_THREADSAFE_MEMORY_ALLOCATION
+
+
+#if !(defined(__WINDOWS__) && (defined(WXUSINGDLL) || defined(WXMAKINGDLL_BASE)))
+#if wxUSE_GLOBAL_MEMORY_OPERATORS
+void * operator new (size_t size, wxChar * fileName, int lineNum)
+{
+ return wxDebugAlloc(size, fileName, lineNum, false, false);
+}
+
+void * operator new (size_t size)
+{
+ return wxDebugAlloc(size, NULL, 0, false);
+}
+
+void operator delete (void * buf)
+{
+ wxDebugFree(buf, false);
+}
+
+#if wxUSE_ARRAY_MEMORY_OPERATORS
+void * operator new[] (size_t size)
+{
+ return wxDebugAlloc(size, NULL, 0, false, true);
+}
+
+void * operator new[] (size_t size, wxChar * fileName, int lineNum)
+{
+ return wxDebugAlloc(size, fileName, lineNum, false, true);
+}
+
+void operator delete[] (void * buf)
+{
+ wxDebugFree(buf, true);
+}
+#endif // wxUSE_ARRAY_MEMORY_OPERATORS
+#endif // wxUSE_GLOBAL_MEMORY_OPERATORS
+#endif // !(defined(__WINDOWS__) && (defined(WXUSINGDLL) || defined(WXMAKINGDLL_BASE)))
+
// TODO: store whether this is a vector or not.
void * wxDebugAlloc(size_t size, wxChar * fileName, int lineNum, bool isObject, bool WXUNUSED(isVect) )
{
+#if USE_THREADSAFE_MEMORY_ALLOCATION
+ MemoryCriticalSectionLocker lock(memLocker);
+#endif
+
// If not in debugging allocation mode, do the normal thing
// so we don't leave any trace of ourselves in the node list.
// TODO: check whether was allocated as a vector
void wxDebugFree(void * buf, bool WXUNUSED(isVect) )
{
+#if USE_THREADSAFE_MEMORY_ALLOCATION
+ MemoryCriticalSectionLocker lock(memLocker);
+#endif
+
if (!buf)
return;
(void) memset (wxDebugContext::CallerMemPos (startPointer), MemFillChar,
st->RequestSize ());
- // Don't allow delayed freeing of memory in this version
-// if (!wxDebugContext::GetDelayFree())
-// free((void *)st);
free((char *)st);
}
// Trace: send output to the current debugging stream
-void wxTrace(const wxChar *fmt ...)
+void wxTrace(const wxChar * ...)
{
#if 1
wxFAIL_MSG(wxT("wxTrace is now obsolete. Please use wxDebugXXX instead."));
va_start(ap, fmt);
-#ifdef __WXMSW__
+#ifdef __WINDOWS__
wvsprintf(buffer,fmt,ap) ;
#else
vsprintf(buffer,fmt,ap) ;
wxDebugContext::GetStream().flush();
}
else
-#ifdef __WXMSW__
+#ifdef __WINDOWS__
#ifdef __WIN32__
OutputDebugString((LPCTSTR)buffer) ;
#else
}
// Trace with level
-void wxTraceLevel(int level, const wxChar *fmt ...)
+void wxTraceLevel(int, const wxChar * ...)
{
#if 1
wxFAIL_MSG(wxT("wxTrace is now obsolete. Please use wxDebugXXX instead."));
va_start(ap, fmt);
-#ifdef __WXMSW__
+#ifdef __WINDOWS__
wxWvsprintf(buffer,fmt,ap) ;
#else
vsprintf(buffer,fmt,ap) ;
wxDebugContext::GetStream().flush();
}
else
-#ifdef __WXMSW__
+#ifdef __WINDOWS__
#ifdef __WIN32__
OutputDebugString((LPCTSTR)buffer) ;
#else
#endif
}
-#else // wxUSE_MEMORY_TRACING && defined(__WXDEBUG__)
-void wxTrace(const char *WXUNUSED(fmt) ...)
+//----------------------------------------------------------------------------
+// Final cleanup after all global objects in all files have been destroyed
+//----------------------------------------------------------------------------
+
+// Don't set it to 0 by dynamic initialization
+// Some compilers will really do the assignment later
+// All global variables are initialized to 0 at the very beginning, and this is just fine.
+int wxDebugContextDumpDelayCounter::sm_count;
+
+wxDebugContextDumpDelayCounter::wxDebugContextDumpDelayCounter()
{
+ sm_count++;
}
-void wxTraceLevel(int WXUNUSED(level), const char *WXUNUSED(fmt) ...)
+wxDebugContextDumpDelayCounter::~wxDebugContextDumpDelayCounter()
{
+ if ( !--sm_count )
+ {
+ // Notify app if we've been asked to do that
+ if( wxDebugContext::sm_shutdownFn )
+ wxDebugContext::sm_shutdownFn();
+ DoDump();
+ }
}
-#endif
+void wxDebugContextDumpDelayCounter::DoDump()
+{
+ if (wxDebugContext::CountObjectsLeft(true) > 0)
+ {
+ wxDebugContext::OutputDumpLine(wxT("There were memory leaks.\n"));
+ wxDebugContext::Dump();
+ wxDebugContext::PrintStatistics();
+ }
+}
+
+// Even if there is nothing else, make sure that there is at
+// least one cleanup counter object
+static wxDebugContextDumpDelayCounter wxDebugContextDumpDelayCounter_One;
+
+#endif // wxUSE_MEMORY_TRACING || wxUSE_DEBUG_CONTEXT
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