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Copy pathaffinity.c
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317 lines (275 loc) · 9.75 KB
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/*
* Process Hacker -
* process affinity editor
*
* Copyright (C) 2010-2015 wj32
*
* This file is part of Process Hacker.
*
* Process Hacker is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Process Hacker 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Process Hacker. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* The affinity dialog was originally created to support the modification
* of process affinity masks, but now supports modifying thread affinity
* and generic masks.
*/
#include <phapp.h>
#include <windowsx.h>
#include <procprv.h>
#include <thrdprv.h>
typedef struct _AFFINITY_DIALOG_CONTEXT
{
PPH_PROCESS_ITEM ProcessItem;
PPH_THREAD_ITEM ThreadItem;
ULONG_PTR AffinityMask;
ULONG_PTR NewAffinityMask;
} AFFINITY_DIALOG_CONTEXT, *PAFFINITY_DIALOG_CONTEXT;
INT_PTR CALLBACK PhpProcessAffinityDlgProc(
_In_ HWND hwndDlg,
_In_ UINT uMsg,
_In_ WPARAM wParam,
_In_ LPARAM lParam
);
VOID PhShowProcessAffinityDialog(
_In_ HWND ParentWindowHandle,
_In_opt_ PPH_PROCESS_ITEM ProcessItem,
_In_opt_ PPH_THREAD_ITEM ThreadItem
)
{
AFFINITY_DIALOG_CONTEXT context;
assert(!!ProcessItem != !!ThreadItem); // make sure we have one and not the other
context.ProcessItem = ProcessItem;
context.ThreadItem = ThreadItem;
DialogBoxParam(
PhInstanceHandle,
MAKEINTRESOURCE(IDD_AFFINITY),
ParentWindowHandle,
PhpProcessAffinityDlgProc,
(LPARAM)&context
);
}
BOOLEAN PhShowProcessAffinityDialog2(
_In_ HWND ParentWindowHandle,
_In_ ULONG_PTR AffinityMask,
_Out_ PULONG_PTR NewAffinityMask
)
{
AFFINITY_DIALOG_CONTEXT context;
context.ProcessItem = NULL;
context.ThreadItem = NULL;
context.AffinityMask = AffinityMask;
if (DialogBoxParam(
PhInstanceHandle,
MAKEINTRESOURCE(IDD_AFFINITY),
ParentWindowHandle,
PhpProcessAffinityDlgProc,
(LPARAM)&context
) == IDOK)
{
*NewAffinityMask = context.NewAffinityMask;
return TRUE;
}
else
{
return FALSE;
}
}
static INT_PTR CALLBACK PhpProcessAffinityDlgProc(
_In_ HWND hwndDlg,
_In_ UINT uMsg,
_In_ WPARAM wParam,
_In_ LPARAM lParam
)
{
switch (uMsg)
{
case WM_INITDIALOG:
{
NTSTATUS status;
PAFFINITY_DIALOG_CONTEXT context = (PAFFINITY_DIALOG_CONTEXT)lParam;
SYSTEM_BASIC_INFORMATION systemBasicInfo;
ULONG_PTR systemAffinityMask;
ULONG_PTR affinityMask;
ULONG i;
SetProp(hwndDlg, PhMakeContextAtom(), (HANDLE)context);
PhCenterWindow(hwndDlg, GetParent(hwndDlg));
systemAffinityMask = 0;
if (context->ProcessItem)
{
HANDLE processHandle;
PROCESS_BASIC_INFORMATION basicInfo;
if (NT_SUCCESS(status = PhOpenProcess(
&processHandle,
ProcessQueryAccess,
context->ProcessItem->ProcessId
)))
{
status = PhGetProcessBasicInformation(processHandle, &basicInfo);
if (NT_SUCCESS(status))
affinityMask = basicInfo.AffinityMask;
NtClose(processHandle);
}
}
else if (context->ThreadItem)
{
HANDLE threadHandle;
THREAD_BASIC_INFORMATION basicInfo;
HANDLE processHandle;
PROCESS_BASIC_INFORMATION processBasicInfo;
if (NT_SUCCESS(status = PhOpenThread(
&threadHandle,
ThreadQueryAccess,
context->ThreadItem->ThreadId
)))
{
status = PhGetThreadBasicInformation(threadHandle, &basicInfo);
if (NT_SUCCESS(status))
{
affinityMask = basicInfo.AffinityMask;
// A thread's affinity mask is restricted by the process affinity mask,
// so use that as the system affinity mask.
if (NT_SUCCESS(PhOpenProcess(
&processHandle,
ProcessQueryAccess,
basicInfo.ClientId.UniqueProcess
)))
{
if (NT_SUCCESS(PhGetProcessBasicInformation(processHandle, &processBasicInfo)))
systemAffinityMask = processBasicInfo.AffinityMask;
NtClose(processHandle);
}
}
NtClose(threadHandle);
}
}
else
{
affinityMask = context->AffinityMask;
status = STATUS_SUCCESS;
}
if (NT_SUCCESS(status) && systemAffinityMask == 0)
{
status = NtQuerySystemInformation(
SystemBasicInformation,
&systemBasicInfo,
sizeof(SYSTEM_BASIC_INFORMATION),
NULL
);
if (NT_SUCCESS(status))
systemAffinityMask = systemBasicInfo.ActiveProcessorsAffinityMask;
}
if (!NT_SUCCESS(status))
{
PhShowStatus(hwndDlg, L"Unable to retrieve the affinity", status, 0);
EndDialog(hwndDlg, IDCANCEL);
break;
}
// Disable the CPU checkboxes which aren't part of the system affinity mask,
// and check the CPU checkboxes which are part of the affinity mask.
for (i = 0; i < 8 * 8; i++)
{
if ((i < sizeof(ULONG_PTR) * 8) && ((systemAffinityMask >> i) & 0x1))
{
if ((affinityMask >> i) & 0x1)
{
Button_SetCheck(GetDlgItem(hwndDlg, IDC_CPU0 + i), BST_CHECKED);
}
}
else
{
EnableWindow(GetDlgItem(hwndDlg, IDC_CPU0 + i), FALSE);
}
}
}
break;
case WM_DESTROY:
{
RemoveProp(hwndDlg, PhMakeContextAtom());
}
break;
case WM_COMMAND:
{
switch (GET_WM_COMMAND_ID(wParam, lParam))
{
case IDCANCEL:
EndDialog(hwndDlg, IDCANCEL);
break;
case IDOK:
{
NTSTATUS status;
PAFFINITY_DIALOG_CONTEXT context = (PAFFINITY_DIALOG_CONTEXT)GetProp(hwndDlg, PhMakeContextAtom());
ULONG i;
ULONG_PTR affinityMask;
// Work out the affinity mask.
affinityMask = 0;
for (i = 0; i < sizeof(ULONG_PTR) * 8; i++)
{
if (Button_GetCheck(GetDlgItem(hwndDlg, IDC_CPU0 + i)) == BST_CHECKED)
affinityMask |= (ULONG_PTR)1 << i;
}
if (context->ProcessItem)
{
HANDLE processHandle;
if (NT_SUCCESS(status = PhOpenProcess(
&processHandle,
PROCESS_SET_INFORMATION,
context->ProcessItem->ProcessId
)))
{
status = PhSetProcessAffinityMask(processHandle, affinityMask);
NtClose(processHandle);
}
}
else if (context->ThreadItem)
{
HANDLE threadHandle;
if (NT_SUCCESS(status = PhOpenThread(
&threadHandle,
ThreadSetAccess,
context->ThreadItem->ThreadId
)))
{
status = PhSetThreadAffinityMask(threadHandle, affinityMask);
NtClose(threadHandle);
}
}
else
{
context->NewAffinityMask = affinityMask;
status = STATUS_SUCCESS;
}
if (NT_SUCCESS(status))
EndDialog(hwndDlg, IDOK);
else
PhShowStatus(hwndDlg, L"Unable to set the affinity", status, 0);
}
break;
case IDC_SELECTALL:
case IDC_DESELECTALL:
{
ULONG i;
for (i = 0; i < sizeof(ULONG_PTR) * 8; i++)
{
HWND checkBox = GetDlgItem(hwndDlg, IDC_CPU0 + i);
if (IsWindowEnabled(checkBox))
Button_SetCheck(checkBox, GET_WM_COMMAND_ID(wParam, lParam) == IDC_SELECTALL ? BST_CHECKED : BST_UNCHECKED);
}
}
break;
}
}
break;
}
return FALSE;
}