applied patch 923858 (fixes crash in zlib streams)

[wxWidgets.git] / src / mac / carbon / timer.cpp

diff --git a/src/mac/carbon/timer.cpp b/src/mac/carbon/timer.cpp
index 3d0bb31c08e718579e87b0449ec457dad83e404b..fe935003ca151dab180acdff1129f5c5ece16d2a 100644 (file)
--- a/src/mac/carbon/timer.cpp
+++ b/src/mac/carbon/timer.cpp
@@ -1,12 +1,12 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        timer.cpp
 // Purpose:     wxTimer implementation
-// Author:      AUTHOR
+// Author:      Stefan Csomor
 // Modified by:
-// Created:     ??/??/98
+// Created:     1998-01-01
 // RCS-ID:      $Id$
-// Copyright:   (c) AUTHOR
-// Licence:    wxWindows licence
+// Copyright:   (c) Stefan Csomor
+// Licence:       wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
@@ -19,75 +19,118 @@
 IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxObject)
 #endif
 
+#ifdef __WXMAC__
+#include "wx/mac/private.h"
+#endif
+#ifndef __DARWIN__
+#include <Timer.h>
+#endif
+
+#include "wx/dynarray.h"
+
+typedef struct MacTimerInfo
+{
+    TMTask m_task;
+    wxMacNotifierTableRef m_table ;
+    wxTimer* m_timer ;
+} ;
+
 static void wxProcessTimer( unsigned long event , void *data ) ;
 
-pascal void MacTimerProc( TMTask * t )
+static pascal void MacTimerProc( TMTask * t )
 {
-       MacTimerInfo * tm = (MacTimerInfo*)  t ;
-       wxMacAddEvent( tm->m_table , wxProcessTimer, 0 , (void*) tm->m_timer , TRUE ) ;
+    MacTimerInfo * tm = (MacTimerInfo*)  t ;
+    wxMacAddEvent( tm->m_table , wxProcessTimer, 0 , (void*) tm->m_timer , TRUE ) ;
 }
 
-void wxProcessTimer( unsigned long event , void *data )
+// we need this array to track timers that are being deleted within the Notify procedure
+// adding the timer before the Notify call and checking after whether it still is in there 
+// as the destructor would have removed it from the array
+
+wxArrayPtrVoid gTimersInProcess ;
+
+static void wxProcessTimer( unsigned long event , void *data )
 {
-       if ( !data )
-               return ;
-               
-       wxTimer* timer = (wxTimer*) data ;
-       if ( timer->IsOneShot() )
-               timer->Stop() ;
-               
+    if ( !data )
+        return ;
+        
+    wxTimer* timer = (wxTimer*) data ;
+    
+    if ( timer->IsOneShot() )
+        timer->Stop() ;
+        
+    gTimersInProcess.Add( timer ) ;
+     
     timer->Notify();
 
-    if ( timer->m_info.m_task.tmAddr && !timer->IsOneShot() )
+    int index = gTimersInProcess.Index( timer ) ;
+    
+    if ( index != wxNOT_FOUND )
     {
-           PrimeTime( (QElemPtr)  &timer->m_info.m_task , timer->GetInterval() ) ;
+        gTimersInProcess.RemoveAt( index ) ;
+        
+        if ( !timer->IsOneShot() && timer->m_info->m_task.tmAddr )
+        {
+            PrimeTime( (QElemPtr)  &timer->m_info->m_task , timer->GetInterval() ) ;
+        }
+    
     }
 }
 
-wxTimer::wxTimer()
+void wxTimer::Init()
 {
-       m_info.m_task.tmAddr = NULL ;
-       m_info.m_task.tmWakeUp = 0 ;
-       m_info.m_task.tmReserved = 0 ;
-       m_info.m_task.qType = 0 ;
-       m_info.m_table = wxMacGetNotifierTable() ;
-       m_info.m_timer = this ;
+    m_info = new MacTimerInfo() ;
+    m_info->m_task.tmAddr = NULL ;
+    m_info->m_task.tmWakeUp = 0 ;
+    m_info->m_task.tmReserved = 0 ;
+    m_info->m_task.qType = 0 ;
+    m_info->m_table = wxMacGetNotifierTable() ;
+    m_info->m_timer = this ;
 }
 
 bool wxTimer::IsRunning() const 
 {
-       return ( m_info.m_task.qType & kTMTaskActive ) ;
+    // as the qType may already indicate it is elapsed, but it
+    // was not handled internally yet
+    return ( m_info->m_task.tmAddr != NULL ) ;
 }
 
 wxTimer::~wxTimer()
 {
     Stop();
+    if (m_info != NULL) {
+        delete m_info ;
+        m_info = NULL ;
+    }
+    int index = gTimersInProcess.Index( this ) ;
+    if ( index != wxNOT_FOUND )
+        gTimersInProcess.RemoveAt( index ) ;  
 }
 
 bool wxTimer::Start(int milliseconds,bool mode)
 {
     (void)wxTimerBase::Start(milliseconds, mode);
 
-    wxCHECK_MSG( m_milli > 0, FALSE, wxT("invalid value for timer timeour") );
-    wxCHECK_MSG( m_info.m_task.tmAddr == NULL , FALSE, wxT("attempting to restart a timer") );
-
-    m_milli = milliseconds;
-       m_info.m_task.tmAddr = NewTimerProc( MacTimerProc ) ;
-       m_info.m_task.tmWakeUp = 0 ;
-       m_info.m_task.tmReserved = 0 ;
-    InsXTime((QElemPtr) &m_info.m_task ) ;
-    PrimeTime( (QElemPtr) &m_info.m_task , m_milli ) ;
-    return FALSE;
+    wxCHECK_MSG( m_milli > 0, FALSE, wxT("invalid value for timer timeout") );
+    wxCHECK_MSG( m_info->m_task.tmAddr == NULL , FALSE, wxT("attempting to restart a timer") );
+
+    m_info->m_task.tmAddr = NewTimerUPP( MacTimerProc ) ;
+    m_info->m_task.tmWakeUp = 0 ;
+    m_info->m_task.tmReserved = 0 ;
+    m_info->m_task.qType = 0 ;
+    m_info->m_timer = this ;
+    InsXTime((QElemPtr) &m_info->m_task ) ;
+    PrimeTime( (QElemPtr) &m_info->m_task , m_milli ) ;
+    return TRUE;
 }
 
 void wxTimer::Stop()
 {
-    m_milli = 0 ;
-    if ( m_info.m_task.tmAddr )
+    if ( m_info->m_task.tmAddr )
     {
-       RmvTime(  (QElemPtr) &m_info.m_task ) ;
-       DisposeTimerUPP(m_info.m_task.tmAddr) ;
-       m_info.m_task.tmAddr = NULL ;
+        RmvTime(  (QElemPtr) &m_info->m_task ) ;
+        DisposeTimerUPP(m_info->m_task.tmAddr) ;
+        m_info->m_task.tmAddr = NULL ;
     }
     wxMacRemoveAllNotifiersForData( wxMacGetNotifierTable() , this ) ;
 }