misc/user.c

   1 /*
   2  * Misc. USER functions
   3  *
   4  * Copyright 1993 Robert J. Amstadt
   5  *           1996 Alex Korobka
   6  */
   7
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include "windows.h"
  11 #include "gdi.h"
  12 #include "user.h"
  13 #include "task.h"
  14 #include "queue.h"
  15 #include "win.h"
  16 #include "hook.h"
  17 #include "debug.h"
  18 #include "toolhelp.h"
  19
  20 WORD USER_HeapSel = 0;
  21
  22
  23 extern HTASK    TASK_GetNextTask(HTASK);
  24 extern void     QUEUE_SetDoomedQueue(HQUEUE);
  25
  26 /***********************************************************************
  27  *           GetFreeSystemResources   (USER.284)
  28  */
  29 WORD GetFreeSystemResources( WORD resType )
  30 {
  31     int userPercent, gdiPercent;
  32
  33     switch(resType)
  34     {
  35     case GFSR_USERRESOURCES:
  36         userPercent = (int)LOCAL_CountFree( USER_HeapSel ) * 100 /
  37                                LOCAL_HeapSize( USER_HeapSel );
  38         gdiPercent  = 100;
  39         break;
  40
  41     case GFSR_GDIRESOURCES:
  42         gdiPercent  = (int)LOCAL_CountFree( GDI_HeapSel ) * 100 /
  43                                LOCAL_HeapSize( GDI_HeapSel );
  44         userPercent = 100;
  45         break;
  46
  47     case GFSR_SYSTEMRESOURCES:
  48         userPercent = (int)LOCAL_CountFree( USER_HeapSel ) * 100 /
  49                                LOCAL_HeapSize( USER_HeapSel );
  50         gdiPercent  = (int)LOCAL_CountFree( GDI_HeapSel ) * 100 /
  51                                LOCAL_HeapSize( GDI_HeapSel );
  52         break;
  53
  54     default:
  55         return 0;
  56     }
  57     return (WORD)MIN( userPercent, gdiPercent );
  58 }
  59
  60
  61 /***********************************************************************
  62  *           SystemHeapInfo   (TOOLHELP.71)
  63  */
  64 BOOL16 SystemHeapInfo( SYSHEAPINFO *pHeapInfo )
  65 {
  66     pHeapInfo->wUserFreePercent = GetFreeSystemResources( GFSR_USERRESOURCES );
  67     pHeapInfo->wGDIFreePercent  = GetFreeSystemResources( GFSR_GDIRESOURCES );
  68     pHeapInfo->hUserSegment = USER_HeapSel;
  69     pHeapInfo->hGDISegment  = GDI_HeapSel;
  70     return TRUE;
  71 }
  72
  73
  74 /***********************************************************************
  75  *           TimerCount   (TOOLHELP.80)
  76  */
  77 BOOL16 TimerCount( TIMERINFO *pTimerInfo )
  78 {
  79     /* FIXME
  80      * In standard mode, dwmsSinceStart = dwmsThisVM
  81      *
  82      * I tested this, under Windows in enhanced mode, and
  83      * if you never switch VM (ie start/stop DOS) these
  84      * values should be the same as well.
  85      *
  86      * Also, Wine should adjust for the hardware timer
  87      * to reduce the amount of error to ~1ms.
  88      * I can't be bothered, can you?
  89      */
  90     pTimerInfo->dwmsSinceStart = pTimerInfo->dwmsThisVM = GetTickCount();
  91     return TRUE;
  92 }
  93
  94
  95 /**********************************************************************
  96  *                                      USER_InitApp
  97  */
  98 int USER_InitApp(HINSTANCE hInstance)
  99 {
 100     int queueSize;
 101
 102       /* Create task message queue */
 103     queueSize = GetProfileInt( "windows", "DefaultQueueSize", 8 );
 104     if (!SetMessageQueue( queueSize )) return 0;
 105
 106     return 1;
 107 }
 108
 109 /**********************************************************************
 110  *                                      USER_AppExit
 111  */
 112 void USER_AppExit(HTASK hTask, HINSTANCE hInstance, HQUEUE hQueue)
 113 {
 114     /* FIXME: flush send messages (which are not implemented yet),
 115      *        empty clipboard if needed, maybe destroy menus (Windows
 116      *        only complains about them but does nothing);
 117      */
 118
 119     WND* desktop = WIN_GetDesktop();
 120
 121     /* Patch desktop window queue */
 122     if( desktop->hmemTaskQ == hQueue )
 123         desktop->hmemTaskQ = GetTaskQueue(TASK_GetNextTask(hTask));
 124
 125     /* Nuke timers */
 126
 127     TIMER_RemoveQueueTimers( hQueue );
 128
 129     HOOK_FreeQueueHooks( hQueue );
 130
 131     QUEUE_SetDoomedQueue( hQueue );
 132
 133     /* Nuke orphaned windows */
 134
 135     WIN_DestroyQueueWindows( desktop->child, hQueue );
 136
 137     QUEUE_SetDoomedQueue( 0 );
 138
 139     /* Free the message queue */
 140
 141     QUEUE_DeleteMsgQueue( hQueue );
 142 }
 143