Don't return a dangling pointer from wxDateTime::ParseXXX(wxCStrData).

[wxWidgets.git] / include / wx / memory.h

diff --git a/include/wx/memory.h b/include/wx/memory.h
index 03c1d45f59d4c7a9c8a207131fbc1defc94e2aba..333b93743646cfc6326d54573f48edaa8c8d5d59 100644 (file)
--- a/include/wx/memory.h
+++ b/include/wx/memory.h
@@ -1,38 +1,27 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        memory.h
-// Purpose:     MDI classes
+// Name:        wx/memory.h
+// Purpose:     Memory operations

 // Author:      Arthur Seaton, Julian Smart
 // Modified by:
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Julian Smart
 // Author:      Arthur Seaton, Julian Smart
 // Modified by:
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Julian Smart

-// Licence:     wxWidgets licence
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifndef _WX_MEMORYH__
-#define _WX_MEMORYH__
-
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma interface "memory.h"
-#endif
+#ifndef _WX_MEMORY_H_
+#define _WX_MEMORY_H_

 
 #include "wx/defs.h"
 #include "wx/string.h"
 #include "wx/msgout.h"
 
 
 #include "wx/defs.h"
 #include "wx/string.h"
 #include "wx/msgout.h"
 

-/*
-  The macro which will be expanded to include the file and line number
-  info, or to be a straight call to the new operator.
-*/
-
-#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
+#if wxUSE_MEMORY_TRACING || wxUSE_DEBUG_CONTEXT

 
 #include <stddef.h>
 
 
 #include <stddef.h>
 

-#ifdef __WXDEBUG__
-
-WXDLLIMPEXP_BASE void * wxDebugAlloc(size_t size, wxChar * fileName, int lineNum, bool isObject, bool isVect = FALSE);
-WXDLLIMPEXP_BASE void wxDebugFree(void * buf, bool isVect = FALSE);
+WXDLLIMPEXP_BASE void * wxDebugAlloc(size_t size, wxChar * fileName, int lineNum, bool isObject, bool isVect = false);
+WXDLLIMPEXP_BASE void wxDebugFree(void * buf, bool isVect = false);

 
 //**********************************************************************************
 /*
 
 //**********************************************************************************
 /*


@@ -42,9 +31,7 @@ WXDLLIMPEXP_BASE void wxDebugFree(void * buf, bool isVect = FALSE);
 
 // We'll only do malloc and free for the moment: leave the interesting
 // stuff for the wxObject versions.
 
 // We'll only do malloc and free for the moment: leave the interesting
 // stuff for the wxObject versions.

-// devik 2000-8-29: All new/delete ops are now inline because they can't
-// be marked as dllexport/dllimport. It then leads to weird bugs when
-// used on MSW as DLL
+

 
 #if wxUSE_GLOBAL_MEMORY_OPERATORS
 
 
 #if wxUSE_GLOBAL_MEMORY_OPERATORS
 


@@ -56,65 +43,85 @@ WXDLLIMPEXP_BASE void wxDebugFree(void * buf, bool isVect = FALSE);
 
 #if defined(__SUNCC__)
     #define wxUSE_ARRAY_MEMORY_OPERATORS 0
 
 #if defined(__SUNCC__)
     #define wxUSE_ARRAY_MEMORY_OPERATORS 0

-#elif !( defined (__VISUALC__) && (__VISUALC__ <= 1020) ) || defined( __MWERKS__)
+#elif !( defined (__VISUALC__) && (__VISUALC__ <= 1020) )

     #define wxUSE_ARRAY_MEMORY_OPERATORS 1
 #elif defined (__SGI_CC_)
     // only supported by -n32 compilers
     #ifndef __EDG_ABI_COMPATIBILITY_VERSION
         #define wxUSE_ARRAY_MEMORY_OPERATORS 0
     #endif
     #define wxUSE_ARRAY_MEMORY_OPERATORS 1
 #elif defined (__SGI_CC_)
     // only supported by -n32 compilers
     #ifndef __EDG_ABI_COMPATIBILITY_VERSION
         #define wxUSE_ARRAY_MEMORY_OPERATORS 0
     #endif

-#elif !( defined (__VISUALC__) && (__VISUALC__ <= 1020) ) || defined( __MWERKS__)
+#elif !( defined (__VISUALC__) && (__VISUALC__ <= 1020) )

     #define wxUSE_ARRAY_MEMORY_OPERATORS 1
 #else
     // ::operator new[] is a recent C++ feature, so assume it's not supported
     #define wxUSE_ARRAY_MEMORY_OPERATORS 0
 #endif
 
     #define wxUSE_ARRAY_MEMORY_OPERATORS 1
 #else
     // ::operator new[] is a recent C++ feature, so assume it's not supported
     #define wxUSE_ARRAY_MEMORY_OPERATORS 0
 #endif
 

+// devik 2000-8-29: All new/delete ops are now inline because they can't
+// be marked as dllexport/dllimport. It then leads to weird bugs when
+// used on MSW as DLL
+#if defined(__WINDOWS__) && (defined(WXUSINGDLL) || defined(WXMAKINGDLL_BASE))

 inline void * operator new (size_t size, wxChar * fileName, int lineNum)
 {
 inline void * operator new (size_t size, wxChar * fileName, int lineNum)
 {

-    return wxDebugAlloc(size, fileName, lineNum, FALSE, FALSE);
+    return wxDebugAlloc(size, fileName, lineNum, false, false);

 }
 
 inline void * operator new (size_t size)
 {
 }
 
 inline void * operator new (size_t size)
 {

-    return wxDebugAlloc(size, NULL, 0, FALSE);
+    return wxDebugAlloc(size, NULL, 0, false);

 }
 
 inline void operator delete (void * buf)
 {
 }
 
 inline void operator delete (void * buf)
 {

-    wxDebugFree(buf, FALSE);
+    wxDebugFree(buf, false);

 }
 
 #if wxUSE_ARRAY_MEMORY_OPERATORS
 inline void * operator new[] (size_t size)
 {
 }
 
 #if wxUSE_ARRAY_MEMORY_OPERATORS
 inline void * operator new[] (size_t size)
 {

-    return wxDebugAlloc(size, NULL, 0, FALSE, TRUE);
+    return wxDebugAlloc(size, NULL, 0, false, true);

 }
 
 inline void * operator new[] (size_t size, wxChar * fileName, int lineNum)
 {
 }
 
 inline void * operator new[] (size_t size, wxChar * fileName, int lineNum)
 {

-    return wxDebugAlloc(size, fileName, lineNum, FALSE, TRUE);
+    return wxDebugAlloc(size, fileName, lineNum, false, true);

 }
 
 inline void operator delete[] (void * buf)
 {
 }
 
 inline void operator delete[] (void * buf)
 {

-  wxDebugFree(buf, TRUE);
+    wxDebugFree(buf, true);

 }
 }

-#endif
+#endif // wxUSE_ARRAY_MEMORY_OPERATORS
+
+#else
+
+void * operator new (size_t size, wxChar * fileName, int lineNum);
+
+void * operator new (size_t size);
+
+void operator delete (void * buf);
+
+#if wxUSE_ARRAY_MEMORY_OPERATORS
+void * operator new[] (size_t size);
+
+void * operator new[] (size_t size, wxChar * fileName, int lineNum);
+
+void operator delete[] (void * buf);
+#endif // wxUSE_ARRAY_MEMORY_OPERATORS
+#endif // defined(__WINDOWS__) && (defined(WXUSINGDLL) || defined(WXMAKINGDLL_BASE))

 
 

-// VC++ 6.0 and MWERKS
-#if ( defined(__VISUALC__) && (__VISUALC__ >= 1200) ) || defined(__MWERKS__)
+// VC++ 6.0
+#if ( defined(__VISUALC__) && (__VISUALC__ >= 1200) )

 inline void operator delete(void* pData, wxChar* /* fileName */, int /* lineNum */)
 {
 inline void operator delete(void* pData, wxChar* /* fileName */, int /* lineNum */)
 {

-    wxDebugFree(pData, FALSE);
+    wxDebugFree(pData, false);

 }
 inline void operator delete[](void* pData, wxChar* /* fileName */, int /* lineNum */)
 {
 }
 inline void operator delete[](void* pData, wxChar* /* fileName */, int /* lineNum */)
 {

-    wxDebugFree(pData, TRUE);
+    wxDebugFree(pData, true);

 }
 #endif // __VISUALC__>=1200
 #endif // wxUSE_GLOBAL_MEMORY_OPERATORS
 }
 #endif // __VISUALC__>=1200
 #endif // wxUSE_GLOBAL_MEMORY_OPERATORS

-#endif // __WXDEBUG__

 
 //**********************************************************************************
 
 
 //**********************************************************************************
 


@@ -127,7 +134,7 @@ typedef unsigned int wxMarkerType;
 
 class WXDLLIMPEXP_BASE wxMemStruct {
 
 
 class WXDLLIMPEXP_BASE wxMemStruct {
 

-friend class WXDLLIMPEXP_BASE wxDebugContext; // access to the m_next pointer for list traversal.
+friend class WXDLLIMPEXP_FWD_BASE wxDebugContext; // access to the m_next pointer for list traversal.

 
 public:
 public:
 
 public:
 public:


@@ -192,6 +199,9 @@ public:
 
 typedef void (wxMemStruct::*PmSFV) ();
 
 
 typedef void (wxMemStruct::*PmSFV) ();
 

+// Type of the app function that can be installed and called at wxWidgets shutdown
+// (after all other registered files with global destructors have been closed down).
+typedef void (*wxShutdownNotifyFunction)();

 
 /*
   Debugging class. This will only have a single instance, but it's
 
 /*
   Debugging class. This will only have a single instance, but it's


@@ -236,7 +246,7 @@ public:
     static bool GetDebugMode(void) { return debugOn; }
     static void SetDebugMode(bool flag) { debugOn = flag; }
 
     static bool GetDebugMode(void) { return debugOn; }
     static void SetDebugMode(bool flag) { debugOn = flag; }
 

-    static void SetCheckpoint(bool all = FALSE);
+    static void SetCheckpoint(bool all = false);

     static wxMemStruct *GetCheckpoint(void) { return checkPoint; }
 
     // Calculated from the request size and any padding needed
     static wxMemStruct *GetCheckpoint(void) { return checkPoint; }
 
     // Calculated from the request size and any padding needed


@@ -270,8 +280,8 @@ public:
     static bool GetCheckPrevious () { return m_checkPrevious; }
     static void SetCheckPrevious (bool value) { m_checkPrevious = value; }
 
     static bool GetCheckPrevious () { return m_checkPrevious; }
     static void SetCheckPrevious (bool value) { m_checkPrevious = value; }
 

-    // Checks all nodes, or all nodes if checkAll is TRUE
-    static int Check(bool checkAll = FALSE);
+    // Checks all nodes, or all nodes if checkAll is true
+    static int Check(bool checkAll = false);

 
     // Print out the list of wxMemStruct nodes.
     static bool PrintList(void);
 
     // Print out the list of wxMemStruct nodes.
     static bool PrintList(void);


@@ -280,44 +290,48 @@ public:
     static bool Dump(void);
 
     // Print statistics
     static bool Dump(void);
 
     // Print statistics

-    static bool PrintStatistics(bool detailed = TRUE);
+    static bool PrintStatistics(bool detailed = true);

 
     // Print out the classes in the application.
     static bool PrintClasses(void);
 
     // Count the number of non-wxDebugContext-related objects
     // that are outstanding
 
     // Print out the classes in the application.
     static bool PrintClasses(void);
 
     // Count the number of non-wxDebugContext-related objects
     // that are outstanding

-    static int CountObjectsLeft(bool sinceCheckpoint = FALSE);
+    static int CountObjectsLeft(bool sinceCheckpoint = false);

 
     // This function is used to output the dump
     static void OutputDumpLine(const wxChar *szFormat, ...);
 
 
     // This function is used to output the dump
     static void OutputDumpLine(const wxChar *szFormat, ...);
 

+    static void SetShutdownNotifyFunction(wxShutdownNotifyFunction shutdownFn);
+

 private:
     // Store these here to allow access to the list without
     // needing to have a wxMemStruct object.
     static wxMemStruct*         m_head;
     static wxMemStruct*         m_tail;
 
 private:
     // Store these here to allow access to the list without
     // needing to have a wxMemStruct object.
     static wxMemStruct*         m_head;
     static wxMemStruct*         m_tail;
 

-    // Set to FALSE if we're not checking all previous nodes when
-    // we do a new. Set to TRUE when we are.
+    // Set to false if we're not checking all previous nodes when
+    // we do a new. Set to true when we are.

     static bool                 m_checkPrevious;
     static bool                 m_checkPrevious;

+
+    // Holds a pointer to an optional application function to call at shutdown.
+    static wxShutdownNotifyFunction sm_shutdownFn;
+
+    // Have to access our shutdown hook
+    friend class wxDebugContextDumpDelayCounter;

 };
 
 // Final cleanup (e.g. deleting the log object and doing memory leak checking)
 // will be delayed until all wxDebugContextDumpDelayCounter objects have been
 // destructed. Adding one wxDebugContextDumpDelayCounter per file will delay
 // memory leak checking until after destructing all global objects.
 };
 
 // Final cleanup (e.g. deleting the log object and doing memory leak checking)
 // will be delayed until all wxDebugContextDumpDelayCounter objects have been
 // destructed. Adding one wxDebugContextDumpDelayCounter per file will delay
 // memory leak checking until after destructing all global objects.

+

 class WXDLLIMPEXP_BASE wxDebugContextDumpDelayCounter
 {
 public:
 class WXDLLIMPEXP_BASE wxDebugContextDumpDelayCounter
 {
 public:

-    wxDebugContextDumpDelayCounter() {
-        sm_count++;
-    }
-
-    ~wxDebugContextDumpDelayCounter() {
-        sm_count--;
-        if(!sm_count) DoDump();
-    }
+    wxDebugContextDumpDelayCounter();
+    ~wxDebugContextDumpDelayCounter();
+

 private:
     void DoDump();
     static int sm_count;
 private:
     void DoDump();
     static int sm_count;


@@ -329,13 +343,13 @@ static wxDebugContextDumpDelayCounter wxDebugContextDumpDelayCounter_File;
     static wxDebugContextDumpDelayCounter wxDebugContextDumpDelayCounter_Extra;
 
 // Output a debug message, in a system dependent fashion.
     static wxDebugContextDumpDelayCounter wxDebugContextDumpDelayCounter_Extra;
 
 // Output a debug message, in a system dependent fashion.

-void WXDLLIMPEXP_BASE wxTrace(const wxChar *fmt ...) ATTRIBUTE_PRINTF_1;
-void WXDLLIMPEXP_BASE wxTraceLevel(int level, const wxChar *fmt ...) ATTRIBUTE_PRINTF_2;
+void WXDLLIMPEXP_BASE wxTrace(const wxChar *fmt ...) WX_ATTRIBUTE_PRINTF_1;
+void WXDLLIMPEXP_BASE wxTraceLevel(int level, const wxChar *fmt ...) WX_ATTRIBUTE_PRINTF_2;

 
 #define WXTRACE wxTrace
 #define WXTRACELEVEL wxTraceLevel
 
 
 #define WXTRACE wxTrace
 #define WXTRACELEVEL wxTraceLevel
 

-#else // (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
+#else // wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT

 
 #define WXDEBUG_DUMPDELAYCOUNTER
 
 
 #define WXDEBUG_DUMPDELAYCOUNTER
 


@@ -349,11 +363,9 @@ void WXDLLIMPEXP_BASE wxTraceLevel(int level, const wxChar *fmt ...) ATTRIBUTE_P
     #define wxTraceLevel(l, fmt)
 #endif
 
     #define wxTraceLevel(l, fmt)
 #endif
 

-#define WXTRACE TRUE ? (void)0 : wxTrace
-#define WXTRACELEVEL TRUE ? (void)0 : wxTraceLevel
-
-#endif // (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
+#define WXTRACE true ? (void)0 : wxTrace
+#define WXTRACELEVEL true ? (void)0 : wxTraceLevel

 
 

-#endif
-    // _WX_MEMORYH__
+#endif // wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT

 
 

+#endif // _WX_MEMORY_H_