dlls/kernel/toolhelp16.c

   1 /*
   2  * Misc Toolhelp functions
   3  *
   4  * Copyright 1996 Marcus Meissner
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #ifdef HAVE_UNISTD_H
  27 # include <unistd.h>
  28 #endif
  29 #include <ctype.h>
  30 #include <assert.h>
  31 #include "windef.h"
  32 #include "winbase.h"
  33 #include "wine/winbase16.h"
  34 #include "winerror.h"
  35 #include "toolhelp.h"
  36 #include "wine/server.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(toolhelp);
  40
  41 /* FIXME: to make this work, we have to call back all these registered
  42  * functions from all over the WINE code. Someone with more knowledge than
  43  * me please do that. -Marcus
  44  */
  45
  46 static struct notify
  47 {
  48     HTASK16   htask;
  49     FARPROC16 lpfnCallback;
  50     WORD     wFlags;
  51 } *notifys = NULL;
  52
  53 static int nrofnotifys = 0;
  54
  55 static FARPROC16 HookNotify = NULL;
  56
  57 /***********************************************************************
  58  *              NotifyRegister (TOOLHELP.73)
  59  */
  60 BOOL16 WINAPI NotifyRegister16( HTASK16 htask, FARPROC16 lpfnCallback,
  61                               WORD wFlags )
  62 {
  63     int i;
  64
  65     FIXME("(%x,%lx,%x), semi-stub.\n",
  66                       htask, (DWORD)lpfnCallback, wFlags );
  67     if (!htask) htask = GetCurrentTask();
  68     for (i=0;i<nrofnotifys;i++)
  69         if (notifys[i].htask==htask)
  70             break;
  71     if (i==nrofnotifys) {
  72         if (notifys==NULL)
  73             notifys=HeapAlloc( GetProcessHeap(), 0,
  74                                                sizeof(struct notify) );
  75         else
  76             notifys=HeapReAlloc( GetProcessHeap(), 0, notifys,
  77                                         sizeof(struct notify)*(nrofnotifys+1));
  78         if (!notifys) return FALSE;
  79         nrofnotifys++;
  80     }
  81     notifys[i].htask=htask;
  82     notifys[i].lpfnCallback=lpfnCallback;
  83     notifys[i].wFlags=wFlags;
  84     return TRUE;
  85 }
  86
  87 /***********************************************************************
  88  *              NotifyUnregister (TOOLHELP.74)
  89  */
  90 BOOL16 WINAPI NotifyUnregister16( HTASK16 htask )
  91 {
  92     int i;
  93
  94     FIXME("(%x), semi-stub.\n", htask );
  95     if (!htask) htask = GetCurrentTask();
  96     for (i=nrofnotifys;i--;)
  97         if (notifys[i].htask==htask)
  98             break;
  99     if (i==-1)
 100         return FALSE;
 101     memcpy(notifys+i,notifys+(i+1),sizeof(struct notify)*(nrofnotifys-i-1));
 102     notifys=HeapReAlloc( GetProcessHeap(), 0, notifys,
 103                                         (nrofnotifys-1)*sizeof(struct notify));
 104     nrofnotifys--;
 105     return TRUE;
 106 }
 107
 108 /***********************************************************************
 109  *              StackTraceCSIPFirst (TOOLHELP.67)
 110  */
 111 BOOL16 WINAPI StackTraceCSIPFirst16(STACKTRACEENTRY *ste, WORD wSS, WORD wCS, WORD wIP, WORD wBP)
 112 {
 113     FIXME("(%p, ss %04x, cs %04x, ip %04x, bp %04x): stub.\n", ste, wSS, wCS, wIP, wBP);
 114     return TRUE;
 115 }
 116
 117 /***********************************************************************
 118  *              StackTraceFirst (TOOLHELP.66)
 119  */
 120 BOOL16 WINAPI StackTraceFirst16(STACKTRACEENTRY *ste, HTASK16 Task)
 121 {
 122     FIXME("(%p, %04x), stub.\n", ste, Task);
 123     return TRUE;
 124 }
 125
 126 /***********************************************************************
 127  *              StackTraceNext (TOOLHELP.68)
 128  */
 129 BOOL16 WINAPI StackTraceNext16(STACKTRACEENTRY *ste)
 130 {
 131     FIXME("(%p), stub.\n", ste);
 132     return TRUE;
 133 }
 134
 135 /***********************************************************************
 136  *              InterruptRegister (TOOLHELP.75)
 137  */
 138 BOOL16 WINAPI InterruptRegister16( HTASK16 task, FARPROC callback )
 139 {
 140     FIXME("(%04x, %p), stub.\n", task, callback);
 141     return TRUE;
 142 }
 143
 144 /***********************************************************************
 145  *              InterruptUnRegister (TOOLHELP.76)
 146  */
 147 BOOL16 WINAPI InterruptUnRegister16( HTASK16 task )
 148 {
 149     FIXME("(%04x), stub.\n", task);
 150     return TRUE;
 151 }
 152
 153 /***********************************************************************
 154  *           TimerCount   (TOOLHELP.80)
 155  */
 156 BOOL16 WINAPI TimerCount16( TIMERINFO *pTimerInfo )
 157 {
 158     /* FIXME
 159      * In standard mode, dwmsSinceStart = dwmsThisVM
 160      *
 161      * I tested this, under Windows in enhanced mode, and
 162      * if you never switch VM (ie start/stop DOS) these
 163      * values should be the same as well.
 164      *
 165      * Also, Wine should adjust for the hardware timer
 166      * to reduce the amount of error to ~1ms.
 167      * I can't be bothered, can you?
 168      */
 169     pTimerInfo->dwmsSinceStart = pTimerInfo->dwmsThisVM = GetTickCount();
 170     return TRUE;
 171 }
 172
 173 /***********************************************************************
 174  *           SystemHeapInfo   (TOOLHELP.71)
 175  */
 176 BOOL16 WINAPI SystemHeapInfo16( SYSHEAPINFO *pHeapInfo )
 177 {
 178     STACK16FRAME* stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
 179     HANDLE16 oldDS = stack16->ds;
 180     WORD user = LoadLibrary16( "USER.EXE" );
 181     WORD gdi = LoadLibrary16( "GDI.EXE" );
 182     stack16->ds = user;
 183     pHeapInfo->wUserFreePercent = (int)LocalCountFree16() * 100 / LocalHeapSize16();
 184     stack16->ds = gdi;
 185     pHeapInfo->wGDIFreePercent  = (int)LocalCountFree16() * 100 / LocalHeapSize16();
 186     stack16->ds = oldDS;
 187     pHeapInfo->hUserSegment = user;
 188     pHeapInfo->hGDISegment  = gdi;
 189     FreeLibrary16( user );
 190     FreeLibrary16( gdi );
 191     return TRUE;
 192 }
 193
 194
 195 /***********************************************************************
 196  *           ToolHelpHook                             (KERNEL.341)
 197  *      see "Undocumented Windows"
 198  */
 199 FARPROC16 WINAPI ToolHelpHook16(FARPROC16 lpfnNotifyHandler)
 200 {
 201         FARPROC16 tmp;
 202
 203         FIXME("(%p), stub.\n", lpfnNotifyHandler);
 204         tmp = HookNotify;
 205         HookNotify = lpfnNotifyHandler;
 206         /* just return previously installed notification function */
 207         return tmp;
 208 }