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147 lines
5 KiB
C
147 lines
5 KiB
C
/*
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* PROJECT: ReactOS Task Manager
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* LICENSE: LGPL-2.1-or-later (https://spdx.org/licenses/LGPL-2.1-or-later)
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* PURPOSE: Processor Affinity.
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* COPYRIGHT: Copyright 1999-2001 Brian Palmer <brianp@reactos.org>
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* Copyright 2005 Klemens Friedl <frik85@reactos.at>
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*/
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#include "precomp.h"
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HANDLE hProcessAffinityHandle;
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static const DWORD dwCpuTable[] = {
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IDC_CPU0, IDC_CPU1, IDC_CPU2, IDC_CPU3,
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IDC_CPU4, IDC_CPU5, IDC_CPU6, IDC_CPU7,
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IDC_CPU8, IDC_CPU9, IDC_CPU10, IDC_CPU11,
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IDC_CPU12, IDC_CPU13, IDC_CPU14, IDC_CPU15,
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IDC_CPU16, IDC_CPU17, IDC_CPU18, IDC_CPU19,
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IDC_CPU20, IDC_CPU21, IDC_CPU22, IDC_CPU23,
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IDC_CPU24, IDC_CPU25, IDC_CPU26, IDC_CPU27,
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IDC_CPU28, IDC_CPU29, IDC_CPU30, IDC_CPU31,
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};
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static INT_PTR CALLBACK AffinityDialogWndProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
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void ProcessPage_OnSetAffinity(void)
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{
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DWORD dwProcessId;
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WCHAR strErrorText[260];
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WCHAR szTitle[256];
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dwProcessId = GetSelectedProcessId();
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if (dwProcessId == 0)
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return;
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hProcessAffinityHandle = OpenProcess(PROCESS_QUERY_INFORMATION|PROCESS_SET_INFORMATION, FALSE, dwProcessId);
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if (!hProcessAffinityHandle) {
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GetLastErrorText(strErrorText, _countof(strErrorText));
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LoadStringW(hInst, IDS_MSG_ACCESSPROCESSAFF, szTitle, _countof(szTitle));
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MessageBoxW(hMainWnd, strErrorText, szTitle, MB_OK|MB_ICONSTOP);
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return;
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}
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DialogBoxW(hInst, MAKEINTRESOURCEW(IDD_AFFINITY_DIALOG), hMainWnd, AffinityDialogWndProc);
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if (hProcessAffinityHandle) {
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CloseHandle(hProcessAffinityHandle);
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hProcessAffinityHandle = NULL;
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}
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}
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INT_PTR CALLBACK
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AffinityDialogWndProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
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{
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DWORD_PTR dwProcessAffinityMask = 0;
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DWORD_PTR dwSystemAffinityMask = 0;
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WCHAR strErrorText[260];
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WCHAR szTitle[256];
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BYTE nCpu;
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switch (message) {
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case WM_INITDIALOG:
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/*
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* Get the current affinity mask for the process and
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* the number of CPUs present in the system
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*/
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if (!GetProcessAffinityMask(hProcessAffinityHandle, &dwProcessAffinityMask, &dwSystemAffinityMask)) {
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GetLastErrorText(strErrorText, _countof(strErrorText));
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EndDialog(hDlg, 0);
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LoadStringW(hInst, IDS_MSG_ACCESSPROCESSAFF, szTitle, _countof(szTitle));
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MessageBoxW(hMainWnd, strErrorText, szTitle, MB_OK|MB_ICONSTOP);
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}
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for (nCpu = 0; nCpu < _countof(dwCpuTable); nCpu++) {
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/*
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* Enable a checkbox for each processor present in the system
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*/
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if (dwSystemAffinityMask & ((ULONG_PTR)1 << nCpu))
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EnableWindow(GetDlgItem(hDlg, dwCpuTable[nCpu]), TRUE);
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/*
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* Check each checkbox that the current process
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* has affinity with
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*/
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if (dwProcessAffinityMask & ((ULONG_PTR)1 << nCpu))
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CheckDlgButton(hDlg, dwCpuTable[nCpu], BST_CHECKED);
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}
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return TRUE;
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case WM_COMMAND:
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/*
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* If the user has cancelled the dialog box
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* then just close it
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*/
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if (LOWORD(wParam) == IDCANCEL) {
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EndDialog(hDlg, LOWORD(wParam));
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return TRUE;
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}
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/*
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* The user has clicked OK -- so now we have
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* to adjust the process affinity mask
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*/
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if (LOWORD(wParam) == IDOK) {
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for (nCpu = 0; nCpu < _countof(dwCpuTable); nCpu++) {
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/*
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* First we have to create a mask out of each
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* checkbox that the user checked.
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*/
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if (IsDlgButtonChecked(hDlg, dwCpuTable[nCpu]))
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dwProcessAffinityMask |= ((ULONG_PTR)1 << nCpu);
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}
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/*
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* Make sure they are giving the process affinity
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* with at least one processor. I'd hate to see a
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* process that is not in a wait state get deprived
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* of it's cpu time.
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*/
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if (!dwProcessAffinityMask) {
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LoadStringW(hInst, IDS_MSG_PROCESSONEPRO, strErrorText, _countof(strErrorText));
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LoadStringW(hInst, IDS_MSG_INVALIDOPTION, szTitle, _countof(szTitle));
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MessageBoxW(hDlg, strErrorText, szTitle, MB_OK|MB_ICONSTOP);
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return TRUE;
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}
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/*
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* Try to set the process affinity
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*/
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if (!SetProcessAffinityMask(hProcessAffinityHandle, dwProcessAffinityMask)) {
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GetLastErrorText(strErrorText, _countof(strErrorText));
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EndDialog(hDlg, LOWORD(wParam));
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LoadStringW(hInst, IDS_MSG_ACCESSPROCESSAFF, szTitle, _countof(szTitle));
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MessageBoxW(hMainWnd, strErrorText, szTitle, MB_OK|MB_ICONSTOP);
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}
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EndDialog(hDlg, LOWORD(wParam));
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return TRUE;
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}
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break;
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}
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return 0;
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}
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