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/*
* ReactOS Task Manager
*
* affinity.c
*
* Copyright (C) 1999 - 2001 Brian Palmer <brianp@reactos.org>
* Copyright (C) 2008 Vladimir Pankratov
* Copyright (C) 2019 Isira Seneviratne
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <commctrl.h>
#include <winnt.h>
#include "taskmgr.h"
#include "perfdata.h"
HANDLE hProcessAffinityHandle;
WCHAR wszUnable2Access[255];
static INT_PTR CALLBACK
AffinityDialogWndProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
DWORD_PTR dwProcessAffinityMask = 0;
DWORD_PTR dwSystemAffinityMask = 0;
WCHAR wstrErrorText[256];
int i;
switch (message) {
case WM_INITDIALOG:
/*
* Get the current affinity mask for the process and
* the number of CPUs present in the system
*/
if (!GetProcessAffinityMask(hProcessAffinityHandle, &dwProcessAffinityMask, &dwSystemAffinityMask)) {
GetLastErrorText(wstrErrorText, ARRAY_SIZE(wstrErrorText));
EndDialog(hDlg, 0);
LoadStringW(hInst, IDS_AFFINITY_UNABLE2ACCESS, wszUnable2Access, ARRAY_SIZE(wszUnable2Access));
MessageBoxW(hMainWnd, wstrErrorText, wszUnable2Access, MB_OK|MB_ICONSTOP);
}
/*
* Enable a checkbox for each processor present in the system
*/
for (i = 0; i < 32; i++)
if (dwSystemAffinityMask & (1 << i))
EnableWindow(GetDlgItem(hDlg, IDC_CPU0 + i), TRUE);
/*
* Check each checkbox that the current process
* has affinity with
*/
for (i = 0; i < 32; i++)
if (dwProcessAffinityMask & (1 << i))
SendMessageW(GetDlgItem(hDlg, IDC_CPU0 + i), BM_SETCHECK, BST_CHECKED, 0);
return TRUE;
case WM_COMMAND:
/*
* If the user has cancelled the dialog box
* then just close it
*/
if (LOWORD(wParam) == IDCANCEL) {
EndDialog(hDlg, LOWORD(wParam));
return TRUE;
}
/*
* The user has clicked OK -- so now we have
* to adjust the process affinity mask
*/
if (LOWORD(wParam) == IDOK) {
/*
* First we have to create a mask out of each
* checkbox that the user checked.
*/
for (i = 0; i < 32; i++)
if (SendMessageW(GetDlgItem(hDlg, IDC_CPU0 + i), BM_GETCHECK, 0, 0))
dwProcessAffinityMask |= (1 << i);
/*
* Make sure they are giving the process affinity
* with at least one processor. I'd hate to see a
* process that is not in a wait state get deprived
* of its cpu time.
*/
if (!dwProcessAffinityMask) {
WCHAR wszErrorMsg[255];
WCHAR wszErrorTitle[255];
LoadStringW(hInst, IDS_AFFINITY_ERROR_MESSAGE, wszErrorMsg, ARRAY_SIZE(wszErrorMsg));
LoadStringW(hInst, IDS_AFFINITY_ERROR_TITLE, wszErrorTitle, ARRAY_SIZE(wszErrorTitle));
MessageBoxW(hDlg, wszErrorMsg, wszErrorTitle, MB_OK|MB_ICONSTOP);
return TRUE;
}
/*
* Try to set the process affinity
*/
if (!SetProcessAffinityMask(hProcessAffinityHandle, dwProcessAffinityMask)) {
GetLastErrorText(wstrErrorText, ARRAY_SIZE(wstrErrorText));
EndDialog(hDlg, LOWORD(wParam));
LoadStringW(hInst, IDS_AFFINITY_UNABLE2ACCESS, wszUnable2Access, ARRAY_SIZE(wszUnable2Access));
MessageBoxW(hMainWnd, wstrErrorText, wszUnable2Access, MB_OK|MB_ICONSTOP);
}
EndDialog(hDlg, LOWORD(wParam));
return TRUE;
}
break;
}
return 0;
}
void ProcessPage_OnSetAffinity(void)
{
LV_ITEMW lvitem;
ULONG Index, Count;
DWORD dwProcessId;
WCHAR wstrErrorText[256];
Count = SendMessageW(hProcessPageListCtrl, LVM_GETITEMCOUNT, 0, 0);
for (Index=0; Index<Count; Index++) {
memset(&lvitem, 0, sizeof(LV_ITEMW));
lvitem.mask = LVIF_STATE;
lvitem.stateMask = LVIS_SELECTED;
lvitem.iItem = Index;
SendMessageW(hProcessPageListCtrl, LVM_GETITEMW, 0, (LPARAM) &lvitem);
if (lvitem.state & LVIS_SELECTED)
break;
}
Count = SendMessageW(hProcessPageListCtrl, LVM_GETSELECTEDCOUNT, 0, 0);
dwProcessId = PerfDataGetProcessId(Index);
if ((Count != 1) || (dwProcessId == 0))
return;
hProcessAffinityHandle = OpenProcess(PROCESS_QUERY_INFORMATION|PROCESS_SET_INFORMATION, FALSE, dwProcessId);
if (!hProcessAffinityHandle) {
GetLastErrorText(wstrErrorText, ARRAY_SIZE(wstrErrorText));
LoadStringW(hInst, IDS_AFFINITY_UNABLE2ACCESS, wszUnable2Access, ARRAY_SIZE(wszUnable2Access));
MessageBoxW(hMainWnd, wstrErrorText, wszUnable2Access, MB_OK|MB_ICONSTOP);
return;
}
DialogBoxW(hInst, MAKEINTRESOURCEW(IDD_AFFINITY_DIALOG), hMainWnd, AffinityDialogWndProc);
if (hProcessAffinityHandle) {
CloseHandle(hProcessAffinityHandle);
hProcessAffinityHandle = NULL;
}
}
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