misc/user.c

   1 /*
   2  * Misc. USER functions
   3  *
   4  * Copyright 1993 Robert J. Amstadt
   5  */
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include "windows.h"
  10 #include "gdi.h"
  11 #include "user.h"
  12 #include "win.h"
  13 #include "toolhelp.h"
  14
  15 #define USER_HEAP_SIZE          0x10000
  16
  17 #ifndef WINELIB
  18 LPSTR USER_Heap = NULL;
  19 WORD USER_HeapSel = 0;
  20
  21
  22 /***********************************************************************
  23  *           GetFreeSystemResources   (USER.284)
  24  */
  25 WORD GetFreeSystemResources( WORD resType )
  26 {
  27     DWORD user, gdi;
  28
  29     switch(resType)
  30     {
  31     case GFSR_USERRESOURCES:
  32         user = GetHeapSpaces( USER_HeapSel );
  33         gdi  = 0xffffffff;
  34         break;
  35
  36     case GFSR_GDIRESOURCES:
  37         gdi  = GetHeapSpaces( GDI_HeapSel );
  38         user = 0xffffffff;
  39         break;
  40
  41     case GFSR_SYSTEMRESOURCES:
  42         user = GetHeapSpaces( USER_HeapSel );
  43         gdi  = GetHeapSpaces( GDI_HeapSel );
  44         break;
  45
  46     default:
  47         return 0;
  48     }
  49     if (user > gdi) return LOWORD(gdi) * 100 / HIWORD(gdi);
  50     else return LOWORD(user) * 100 / HIWORD(user);
  51 }
  52
  53
  54 /***********************************************************************
  55  *           SystemHeapInfo   (TOOLHELP.71)
  56  */
  57 BOOL SystemHeapInfo( SYSHEAPINFO *pHeapInfo )
  58 {
  59     pHeapInfo->wUserFreePercent = GetFreeSystemResources( GFSR_USERRESOURCES );
  60     pHeapInfo->wGDIFreePercent  = GetFreeSystemResources( GFSR_GDIRESOURCES );
  61     pHeapInfo->hUserSegment = USER_HeapSel;
  62     pHeapInfo->hGDISegment  = GDI_HeapSel;
  63     return TRUE;
  64 }
  65
  66
  67 /***********************************************************************
  68  *           USER_HeapInit
  69  */
  70 BOOL USER_HeapInit(void)
  71 {
  72     if (!(USER_HeapSel = GlobalAlloc(GMEM_FIXED,USER_HEAP_SIZE))) return FALSE;
  73     USER_Heap = GlobalLock( USER_HeapSel );
  74     LocalInit( USER_HeapSel, 0, USER_HEAP_SIZE-1 );
  75     return TRUE;
  76 }
  77 #endif
  78
  79
  80 /***********************************************************************
  81  *           TimerCount   (TOOLHELP.80)
  82  */
  83 BOOL TimerCount( TIMERINFO *pTimerInfo )
  84 {
  85     /* FIXME
  86      * In standard mode, dwmsSinceStart = dwmsThisVM
  87      *
  88      * I tested this, under Windows in enhanced mode, and
  89      * if you never switch VM (ie start/stop DOS) these
  90      * values should be the same as well.
  91      *
  92      * Also, Wine should adjust for the hardware timer
  93      * to reduce the amount of error to ~1ms.
  94      * I can't be bothered, can you?
  95      */
  96     pTimerInfo->dwmsSinceStart = pTimerInfo->dwmsThisVM = GetTickCount();
  97     return TRUE;
  98 }
  99
 100
 101 /**********************************************************************
 102  *                                      USER_InitApp
 103  */
 104 int USER_InitApp(HINSTANCE hInstance)
 105 {
 106     int queueSize;
 107
 108       /* Create task message queue */
 109     queueSize = GetProfileInt( "windows", "DefaultQueueSize", 8 );
 110     if (!SetMessageQueue( queueSize )) return 0;
 111
 112     return 1;
 113 }