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ntop.c
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/*
* NTop - an htop clone for Windows
* Copyright (c) 2019 Gian Sass
*
* This program 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, version 3.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <windows.h>
#include <psapi.h>
#include <lmcons.h>
#include <tchar.h>
#include <tlhelp32.h>
#include <assert.h>
#include <conio.h>
#include <pdh.h>
#include <stdio.h>
#include <math.h>
#include "ntop.h"
#include "util.h"
#include "vi.h"
#ifndef NTOP_VER
#define NTOP_VER "dev"
#endif
#define STRINGIZE(x) #x
#define STRINGIZE_VALUE_OF(x) STRINGIZE(x)
#define SCROLL_INTERVAL 20ULL
#define INPUT_LOOP_DELAY 30
#define CARET_INTERVAL 500
#define MAX_NAMEPARTS 10
#define MAX_NAMEPARTSIZE 255
static int Width;
static int Height;
static int OldWidth;
static int OldHeight;
static int SizeX;
static int SizeY;
static const int ProcessWindowPosY = 6;
static DWORD ProcessWindowHeight;
static DWORD VisibleProcessCount;
static WORD SavedAttributes;
HANDLE ConsoleHandle;
static HANDLE OldConsoleHandle;
static CRITICAL_SECTION SyncLock;
static int ConPrintf(TCHAR *Fmt, ...)
{
TCHAR Buffer[1024];
va_list VaList;
va_start(VaList, Fmt);
int CharsWritten = _vstprintf_s(Buffer, _countof(Buffer), Fmt, VaList);
va_end(VaList);
DWORD Dummy;
WriteConsole(ConsoleHandle, Buffer, CharsWritten, &Dummy, 0);
return CharsWritten;
}
static void ConPutc(TCHAR c)
{
DWORD Dummy;
WriteConsole(ConsoleHandle, &c, 1, &Dummy, 0);
}
#define FOREGROUND_WHITE (FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE)
#define FOREGROUND_CYAN (FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_BLUE)
#define BACKGROUND_WHITE (BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE)
#define BACKGROUND_CYAN (BACKGROUND_INTENSITY | BACKGROUND_GREEN | BACKGROUND_BLUE)
typedef struct config {
WORD FGColor;
WORD BGColor;
WORD FGHighlightColor;
WORD BGHighlightColor;
WORD MenuBarColor;
WORD ProcessListHeaderColor;
WORD CPUBarColor;
WORD MemoryBarColor;
WORD PageMemoryBarColor;
WORD ErrorColor;
ULONGLONG RedrawInterval;
} config;
static config Config = {
/* Default values */
FOREGROUND_WHITE,
FOREGROUND_INTENSITY,
FOREGROUND_CYAN,
BACKGROUND_CYAN,
BACKGROUND_BLUE,
BACKGROUND_GREEN,
FOREGROUND_RED,
FOREGROUND_GREEN,
FOREGROUND_GREEN,
BACKGROUND_RED | FOREGROUND_WHITE,
1000
};
static config MonochromeConfig = {
FOREGROUND_WHITE,
FOREGROUND_INTENSITY,
FOREGROUND_INTENSITY | FOREGROUND_WHITE,
BACKGROUND_WHITE,
0,
BACKGROUND_WHITE,
FOREGROUND_WHITE,
FOREGROUND_WHITE,
FOREGROUND_WHITE,
BACKGROUND_WHITE,
1000
};
static void ParseConfigLine(char *Line)
{
const char *Delimeter = " \t\n";
char *Context;
char *Key = strtok_s(Line, Delimeter, &Context);
if(!Key)
return;
if(Key[0] == '#') /* Comment char*/
return;
char *Value = strtok_s(0, Delimeter, &Context);
if(!Value)
return;
WORD Num = (WORD)strtol(Value, 0, 0);
if(_strcmpi(Key, "FGColor") == 0) {
Config.FGColor = Num;
} else if(_strcmpi(Key, "BGColor") == 0) {
Config.BGColor = Num;
} else if(_strcmpi(Key, "FGHighlightColor") == 0) {
Config.FGHighlightColor = Num;
} else if(_strcmpi(Key, "FGHighlightColor") == 0) {
Config.BGHighlightColor = Num;
} else if(_strcmpi(Key, "MenuBarColor") == 0) {
Config.MenuBarColor = Num;
} else if(_strcmpi(Key, "ProcessListHeaderColor") == 0) {
Config.ProcessListHeaderColor = Num;
} else if(_strcmpi(Key, "CPUBarColor") == 0) {
Config.CPUBarColor = Num;
} else if(_strcmpi(Key, "MemoryBarColor") == 0) {
Config.MemoryBarColor = Num;
} else if(_strcmpi(Key, "PageMemoryBarColor") == 0) {
Config.PageMemoryBarColor = Num;
} else if(_strcmpi(Key, "ErrorColor") == 0) {
Config.ErrorColor = Num;
} else if(_strcmpi(Key, "RedrawInterval") == 0) {
Config.RedrawInterval = (ULONGLONG)Num;
}
}
#define BUF_INCREASE 256
static void ReadConfigFile(void)
{
FILE *File;
errno_t Error;
Error = fopen_s(&File, "ntop.conf", "r");
if(Error != 0)
return;
size_t BufferSize = BUF_INCREASE;
size_t Offset = 0;
char *Buffer = xmalloc(BUF_INCREASE);
while(1) {
if(!fgets(Offset + Buffer, (int)(BufferSize - Offset), File)) {
break;
}
if(!feof(File) && !strchr(Buffer, '\n')) {
Offset = BufferSize - 1;
BufferSize += BUF_INCREASE;
Buffer = xrealloc(Buffer, BufferSize);
} else {
Offset = 0;
ParseConfigLine(Buffer);
}
}
free(Buffer);
fclose(File);
}
static WORD CurrentColor;
static WORD ColorOverride;
static void SetColor(WORD Color)
{
Color |= ColorOverride;
CurrentColor = Color;
SetConsoleTextAttribute(ConsoleHandle, Color);
}
static void SetConCursorPos(SHORT X, SHORT Y)
{
COORD Coord;
Coord.X = X;
Coord.Y = Y;
SetConsoleCursorPosition(ConsoleHandle, Coord);
}
typedef struct process {
HANDLE Handle;
DWORD ID;
TCHAR UserName[UNLEN];
DWORD BasePriority;
double PercentProcessorTime;
unsigned __int64 UsedMemory;
DWORD ThreadCount;
ULONGLONG UpTime;
TCHAR ExeName[MAX_PATH];
DWORD ParentPID;
ULONGLONG DiskOperationsPrev;
ULONGLONG DiskOperations;
DWORD DiskUsage;
DWORD TreeDepth;
struct process *Next;
struct process *Parent;
struct process *FirstChild;
} process;
#define PROCLIST_BUF_INCREASE 64
static process *ProcessList;
static process *NewProcessList;
static DWORD ProcessListSize = PROCLIST_BUF_INCREASE;
static DWORD *TaggedProcessList;
static DWORD TaggedProcessListCount;
static DWORD TaggedProcessListSize = PROCLIST_BUF_INCREASE;
static void IncreaseProcListSize(void)
{
ProcessListSize += PROCLIST_BUF_INCREASE;
NewProcessList = xrealloc(NewProcessList, ProcessListSize * sizeof *NewProcessList);
ProcessList = xrealloc(ProcessList, ProcessListSize * sizeof *ProcessList);
}
static void ToggleTaggedProcess(DWORD ID)
{
for(DWORD i = 0; i < TaggedProcessListCount; i++) {
if(TaggedProcessList[i] == ID) {
for(; i < TaggedProcessListCount-1;i++) {
TaggedProcessList[i] = TaggedProcessList[i+1];
}
TaggedProcessListCount--;
return;
}
}
TaggedProcessList[TaggedProcessListCount++] = ID;
if(TaggedProcessListCount >= TaggedProcessListSize) {
TaggedProcessListSize += PROCLIST_BUF_INCREASE;
TaggedProcessList = xrealloc(TaggedProcessList, PROCLIST_BUF_INCREASE * sizeof *TaggedProcessList);
}
}
static BOOL IsProcessTagged(DWORD ID)
{
for(DWORD i = 0; i < TaggedProcessListCount; i++) {
if(TaggedProcessList[i] == ID)
return TRUE;
}
return FALSE;
}
static DWORD ProcessCount = 0;
static DWORD RunningProcessCount = 0;
static DWORD ProcessIndex = 0;
static DWORD SelectedProcessIndex = 0;
static DWORD SelectedProcessID = 0;
static BOOL FollowProcess = FALSE;
static DWORD FollowProcessID = 0;
typedef enum sort_order {
ASCENDING,
DESCENDING
} sort_order;
static sort_order SortOrder = DESCENDING;
typedef int (*process_sort_fn_t)(const void *, const void *);
#define SORT_PROCESS_BY_INTEGER(Attribute) \
static int SortProcessBy##Attribute(const void *A, const void *B) \
{ \
int Compare = (int)(((const process *)A)->Attribute - ((const process *)B)->Attribute); \
return (SortOrder == ASCENDING) ? Compare : -Compare; \
} \
#define SORT_PROCESS_BY_UINT64(Attribute) \
static int SortProcessBy##Attribute(const void *A, const void *B) \
{ \
__int64 Compare = (__int64)(((const process *)A)->Attribute - ((const process *)B)->Attribute); \
int Result = (Compare > 1) ? 1 : -1; \
return (SortOrder == ASCENDING) ? Result : -Result; \
} \
#define SORT_PROCESS_BY_DOUBLE(Attribute) \
static int SortProcessBy##Attribute(const void *A, const void *B) \
{ \
double Diff = (((const process *)A)->Attribute - ((const process *)B)->Attribute); \
if (Diff > 0.0) return (SortOrder == ASCENDING) ? 1 : -1; \
if (Diff < 0.0) return (SortOrder == ASCENDING) ? -1 : 1; \
return 0; \
} \
#define SORT_PROCESS_BY_STRING(Attribute, MaxLength) \
static int SortProcessBy##Attribute(const void *A, const void *B) \
{ \
int Compare = _tcsncicmp(((const process *)A)->Attribute, ((const process *)B)->Attribute, MaxLength); \
return (SortOrder == ASCENDING) ? Compare : -Compare; \
} \
SORT_PROCESS_BY_INTEGER(ID);
SORT_PROCESS_BY_DOUBLE(PercentProcessorTime);
SORT_PROCESS_BY_UINT64(UsedMemory);
SORT_PROCESS_BY_INTEGER(UpTime);
SORT_PROCESS_BY_INTEGER(BasePriority);
SORT_PROCESS_BY_INTEGER(ThreadCount);
SORT_PROCESS_BY_INTEGER(ParentPID);
SORT_PROCESS_BY_INTEGER(DiskUsage);
SORT_PROCESS_BY_STRING(ExeName, MAX_PATH);
SORT_PROCESS_BY_STRING(UserName, UNLEN);
static process_sort_type ProcessSortType = SORT_BY_ID;
static TCHAR OSName[256];
static DWORD CPUCoreCount;
static double CPUUsage;
static ULONGLONG SubtractTimes(const FILETIME *A, const FILETIME *B)
{
LARGE_INTEGER lA, lB;
lA.LowPart = A->dwLowDateTime;
lA.HighPart = A->dwHighDateTime;
lB.LowPart = B->dwLowDateTime;
lB.HighPart = B->dwHighDateTime;
return lA.QuadPart - lB.QuadPart;
}
void AddChildProcess(process *ParentProcess, process *Process)
{
if(ParentProcess == Process) return;
if (ParentProcess->FirstChild == NULL) {
ParentProcess->FirstChild = Process;
} else {
process *ChildProcess = ParentProcess->FirstChild;
while (ChildProcess->Next != NULL) {
ChildProcess = ChildProcess->Next;
if(ChildProcess == Process) return;
}
ChildProcess->Next = Process;
}
Process->Parent = ParentProcess;
}
/* The "root" process which does not actually exist, acts as process tree root */
static process RootProcess;
/* Finds and assigns parent and child processes */
void FindParentChildProcesses(void)
{
memset(&RootProcess, 0, sizeof(RootProcess));
/* Find and assign parent and child processes that have ParentPID=0 */
for (DWORD i = 0; i < ProcessCount; i++)
{
ProcessList[i].TreeDepth = 0;
ProcessList[i].Next = 0;
ProcessList[i].Parent = 0;
ProcessList[i].FirstChild = 0;
// if (ProcessList[i].ParentPID == 0)
// {
// AddChildProcess(&RootProcess, &ProcessList[i]);
// }
}
/* Find and assign parent and child processes */
for (DWORD i = 0; i < ProcessCount; i++)
{
for (DWORD j = 0; j < ProcessCount; j++)
{
if (i == j)
continue;
if (ProcessList[j].ParentPID == ProcessList[i].ID && ProcessList[j].ParentPID != 0 && ProcessList[i].ID != ProcessList[j].ID && ProcessList[j].Next == NULL)
{
/* i is a parent of j */
AddChildProcess(&ProcessList[i], &ProcessList[j]);
ProcessList[j].TreeDepth = ProcessList[i].TreeDepth + 1;
}
}
}
/* Add processes with PIDs that couldn't be found to RootProcess or else
* they won't be shown */
for (DWORD i = 0; i < ProcessCount; i++)
{
process *Process = &ProcessList[i];
if (Process->Parent == NULL)
{
AddChildProcess(&RootProcess, Process);
}
}
}
void ProcessTreeToList(process *Process, process *Dest, int *Index)
{
process *ProcessNode = Process->FirstChild;
if(ProcessNode == NULL) return;
while(ProcessNode != NULL) {
Dest[*Index] = *ProcessNode;
*Index = *Index + 1;
ProcessTreeToList(ProcessNode, Dest, Index);
ProcessNode = ProcessNode->Next;
}
}
static void SortProcessList(void)
{
if(ProcessSortType != SORT_BY_TREE)
{
process_sort_fn_t SortFn = 0;
switch(ProcessSortType) {
case SORT_BY_ID:
SortFn = SortProcessByID;
break;
case SORT_BY_PROCESS:
SortFn = SortProcessByExeName;
break;
case SORT_BY_USER_NAME:
SortFn = SortProcessByUserName;
break;
case SORT_BY_PROCESSOR_TIME:
SortFn = SortProcessByPercentProcessorTime;
break;
case SORT_BY_USED_MEMORY:
SortFn = SortProcessByUsedMemory;
break;
case SORT_BY_UPTIME:
SortFn = SortProcessByUpTime;
break;
case SORT_BY_PRIORITY:
SortFn = SortProcessByBasePriority;
break;
case SORT_BY_THREAD_COUNT:
SortFn = SortProcessByThreadCount;
break;
case SORT_BY_DISK_USAGE:
SortFn = SortProcessByDiskUsage;
break;
}
if(SortFn) {
qsort(ProcessList, ProcessCount, sizeof(*ProcessList), SortFn);
}
FindParentChildProcesses();
} else {
SortOrder = ASCENDING;
qsort(ProcessList, ProcessCount, sizeof(*ProcessList), SortProcessByParentPID);
FindParentChildProcesses();
process *TreeProcessList = xmalloc(ProcessCount * sizeof(*ProcessList));
int Index = 0;
ProcessTreeToList(&RootProcess, TreeProcessList, &Index);
ProcessCount = Index;
memcpy(ProcessList, TreeProcessList, ProcessCount * sizeof(*ProcessList));
free(TreeProcessList);
}
}
static BOOL FilterByUserName = FALSE;
static TCHAR FilterUserName[UNLEN];
static BOOL FilterByPID = FALSE;
static DWORD PidFilterList[1024];
static DWORD PidFilterCount;
static BOOL FilterByName = FALSE;
static TCHAR NameFilterList[MAX_NAMEPARTS][MAX_NAMEPARTSIZE+1];
static DWORD NameFilterCount;
static void SelectProcess(DWORD Index)
{
SelectedProcessIndex = Index;
if(SelectedProcessIndex <= ProcessIndex - 1 && ProcessIndex != 0) {
ProcessIndex = SelectedProcessIndex;
}
if(SelectedProcessIndex - ProcessIndex >= VisibleProcessCount) {
ProcessIndex = min(ProcessCount - VisibleProcessCount, SelectedProcessIndex);
}
}
static void ReadjustCursor(void)
{
if(FollowProcess) {
BOOL Found = FALSE;
for(DWORD i = 0; i < ProcessCount; i++) {
if(ProcessList[i].ID == FollowProcessID) {
SelectProcess(i);
Found = TRUE;
break;
}
}
if(!Found) {
/* Process got lost, might as well disable this now */
FollowProcess = FALSE;
}
} else {
/* After process list update ProcessIndex and SelectedProcessIndex may become out of range */
ProcessIndex = min(ProcessIndex, ProcessCount - VisibleProcessCount);
SelectedProcessIndex = min(SelectedProcessIndex, ProcessCount - 1);
}
}
static TCHAR SearchPattern[256];
static BOOLEAN CaseInsensitiveSearch = FALSE;
static BOOLEAN SearchActive;
static void SearchNext(void);
void StartSearch(const TCHAR *Pattern)
{
_tcsncpy_s(SearchPattern, 256, Pattern, 256);
// if the whole string is lower case use case insensitive search
CaseInsensitiveSearch = TRUE;
for (int i = 0; i < 256; i++)
{
if (SearchPattern[i] == 0)
{
break;
}
if (isupper(SearchPattern[i]))
{
CaseInsensitiveSearch = FALSE;
break;
}
}
SearchActive = TRUE;
SearchNext();
}
static BOOLEAN SearchMatchesProcess(const process *Process)
{
TCHAR TempProcessName[MAX_PATH];
_tcsncpy_s(TempProcessName, MAX_PATH, Process->ExeName, MAX_PATH);
if (CaseInsensitiveSearch) // which means that the SearchPattern is already lower case,
// so we convert the process name to lower case to make the
// search case insensitive
{
for (int i = 0; i < MAX_PATH; i++)
{
if (TempProcessName[i] == 0)
break;
TempProcessName[i] = (TCHAR)tolower(TempProcessName[i]);
}
}
return _tcsstr(TempProcessName, SearchPattern) != 0;
}
static void SearchNext(void)
{
if(!SearchActive) return;
for(DWORD i = SelectedProcessIndex + 1; i < ProcessCount; ++i) {
const process *Process = &ProcessList[i];
if(SearchMatchesProcess(Process)) {
SelectProcess(i);
return;
}
}
SetViMessage(VI_NOTICE, _T("search hit BOTTOM, continuing at TOP"));
for(DWORD i = 0; i <= SelectedProcessIndex; ++i) {
const process *Process = &ProcessList[i];
if(SearchMatchesProcess(Process)) {
SelectProcess(i);
return;
}
}
SetViMessage(VI_ERROR, _T("Pattern not found: %s"), SearchPattern);
}
static void SearchPrevious(void)
{
if(!SearchActive) return;
for(DWORD i = SelectedProcessIndex; i > 0; --i) {
const process *Process = &ProcessList[i - 1];
if(SearchMatchesProcess(Process)) {
SelectProcess(i - 1);
return;
}
}
SetViMessage(VI_NOTICE, _T("search hit TOP, continuing at BOTTOM"));
for(DWORD i = ProcessCount; i > SelectedProcessIndex; --i) {
const process *Process = &ProcessList[i - 1];
if(SearchMatchesProcess(Process)) {
SelectProcess(i - 1);
return;
}
}
SetViMessage(VI_ERROR, _T("Pattern not found: %s"), SearchPattern);
}
static void PollProcessList(DWORD UpdateTime)
{
HANDLE Snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPALL, 0);
if(!Snapshot) {
Die(_T("CreateToolhelp32Snapshot failed: %ld\n"), GetLastError());
}
PROCESSENTRY32 Entry;
Entry.dwSize = sizeof(Entry);
BOOL Status = Process32First(Snapshot, &Entry);
if(!Status) {
Die(_T("Process32First failed: %ld\n"), GetLastError());
}
DWORD i = 0;
for(; Status; Status = Process32Next(Snapshot, &Entry)) {
process Process = { 0 };
Process.ID = Entry.th32ProcessID;
if(Process.ID == 0)
continue;
Process.ThreadCount = Entry.cntThreads;
Process.BasePriority = Entry.pcPriClassBase;
Process.ParentPID = Entry.th32ParentProcessID;
_tcsncpy_s(Process.ExeName, MAX_PATH, Entry.szExeFile, MAX_PATH);
_tcsncpy_s(Process.UserName, UNLEN, _T("SYSTEM"), UNLEN);
Process.Handle = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, Entry.th32ProcessID);
if(Process.Handle) {
PROCESS_MEMORY_COUNTERS ProcMemCounters;
if(GetProcessMemoryInfo(Process.Handle, &ProcMemCounters, sizeof(ProcMemCounters))) {
Process.UsedMemory = (unsigned __int64)ProcMemCounters.WorkingSetSize;
}
HANDLE ProcessTokenHandle;
if(OpenProcessToken(Process.Handle, TOKEN_READ, &ProcessTokenHandle)) {
DWORD ReturnLength;
GetTokenInformation(ProcessTokenHandle, TokenUser, 0, 0, &ReturnLength);
if(GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
PTOKEN_USER TokenUserStruct = xmalloc(ReturnLength);
if(GetTokenInformation(ProcessTokenHandle, TokenUser, TokenUserStruct, ReturnLength, &ReturnLength)) {
SID_NAME_USE NameUse;
DWORD NameLength = UNLEN;
TCHAR DomainName[MAX_PATH];
DWORD DomainLength = MAX_PATH;
LookupAccountSid(0, TokenUserStruct->User.Sid, Process.UserName, &NameLength, DomainName, &DomainLength, &NameUse);
// FIXME: we cut user name here for display purposes because something like %9.9s does not work with MS's vsprintf function?
Process.UserName[9] = 0;
}
free(TokenUserStruct);
}
CloseHandle(ProcessTokenHandle);
}
}
if(FilterByUserName && lstrcmpi(Process.UserName, FilterUserName) != 0) {
continue;
}
if(FilterByPID) {
BOOL InFilter = FALSE;
for(DWORD PidIndex = 0; PidIndex < PidFilterCount; PidIndex++) {
if(PidFilterList[PidIndex] == Process.ID) {
InFilter = TRUE;
}
}
if(!InFilter) {
continue;
}
}
if (FilterByName) {
BOOL InFilter = FALSE;
for(DWORD NameIndex = 0; NameIndex < NameFilterCount; NameIndex++) {
if(strstr(Process.ExeName, NameFilterList[NameIndex]) != NULL) {
InFilter = TRUE;
}
}
if (!InFilter) {
continue;
}
}
NewProcessList[i++] = Process;
if(i >= ProcessListSize) {
IncreaseProcListSize();
}
}
CloseHandle(Snapshot);
DWORD NewProcessCount = i;
typedef struct system_times
{
FILETIME IdleTime, KernelTime, UserTime;
} system_times;
system_times PrevSysTimes;
GetSystemTimes(&PrevSysTimes.IdleTime, &PrevSysTimes.KernelTime, &PrevSysTimes.UserTime);
typedef struct process_times
{
FILETIME CreationTime, ExitTime, KernelTime, UserTime;
} process_times;
process_times *ProcessTimes = (process_times *)xmalloc(NewProcessCount * sizeof(*ProcessTimes));
for(DWORD ProcIndex = 0; ProcIndex < NewProcessCount; ProcIndex++) {
process *Process = &NewProcessList[ProcIndex];
process_times *ProcessTime = &ProcessTimes[ProcIndex];
if(Process->Handle) {
GetProcessTimes(Process->Handle, &ProcessTime->CreationTime, &ProcessTime->ExitTime, &ProcessTime->KernelTime, &ProcessTime->UserTime);
IO_COUNTERS IoCounters;
if(GetProcessIoCounters(Process->Handle, &IoCounters)) {
Process->DiskOperationsPrev = IoCounters.ReadTransferCount + IoCounters.WriteTransferCount;
}
}
}
Sleep(UpdateTime);
system_times SysTimes;
GetSystemTimes(&SysTimes.IdleTime, &SysTimes.KernelTime, &SysTimes.UserTime);
ULONGLONG SysKernelDiff = SubtractTimes(&SysTimes.KernelTime, &PrevSysTimes.KernelTime);
ULONGLONG SysUserDiff = SubtractTimes(&SysTimes.UserTime, &PrevSysTimes.UserTime);
ULONGLONG SysIdleDiff = SubtractTimes(&SysTimes.IdleTime, &PrevSysTimes.IdleTime);
RunningProcessCount = 0;
for(DWORD ProcIndex = 0; ProcIndex < NewProcessCount; ProcIndex++) {
process_times ProcessTime = { 0 };
process_times *PrevProcessTime = &ProcessTimes[ProcIndex];
process *Process = &NewProcessList[ProcIndex];
if(Process->Handle) {
GetProcessTimes(Process->Handle, &ProcessTime.CreationTime, &ProcessTime.ExitTime, &ProcessTime.KernelTime, &ProcessTime.UserTime);
ULONGLONG ProcKernelDiff = SubtractTimes(&ProcessTime.KernelTime, &PrevProcessTime->KernelTime);
ULONGLONG ProcUserDiff = SubtractTimes(&ProcessTime.UserTime, &PrevProcessTime->UserTime);
ULONGLONG TotalSys = SysKernelDiff + SysUserDiff;
ULONGLONG TotalProc = ProcKernelDiff + ProcUserDiff;
if(TotalSys > 0) {
Process->PercentProcessorTime = (double)((100.0 * (double)TotalProc) / (double)TotalSys);
if(Process->PercentProcessorTime >= 0.01) {
RunningProcessCount++;
}
}
FILETIME SysTime;
GetSystemTimeAsFileTime(&SysTime);
Process->UpTime = SubtractTimes(&SysTime, &ProcessTime.CreationTime) / 10000;
IO_COUNTERS IoCounters;
if(GetProcessIoCounters(Process->Handle, &IoCounters)) {
Process->DiskOperations = IoCounters.ReadTransferCount + IoCounters.WriteTransferCount;
Process->DiskUsage = (DWORD)((Process->DiskOperations - Process->DiskOperationsPrev) * (1000/UpdateTime));
}
CloseHandle(Process->Handle);
Process->Handle = 0;
}
}
free(ProcessTimes);
/* Since we have the values already we can compute CPU usage too */
ULONGLONG SysTime = SysKernelDiff + SysUserDiff;
if(SysTime > 0) {
double Percentage = (double)(SysTime - SysIdleDiff) / (double)SysTime;
CPUUsage = min(Percentage, 1.0);
}
EnterCriticalSection(&SyncLock);
memcpy(ProcessList, NewProcessList, NewProcessCount * sizeof *ProcessList);
ProcessCount = NewProcessCount;
SortProcessList();
ReadjustCursor();
LeaveCriticalSection(&SyncLock);
}
static void DisableCursor(void)
{
CONSOLE_CURSOR_INFO CursorInfo;
GetConsoleCursorInfo(ConsoleHandle, &CursorInfo);
CursorInfo.bVisible = FALSE; /* Note: this has to be set every time console buffer resizes! */
SetConsoleCursorInfo(ConsoleHandle, &CursorInfo);
}
static WORD GetConsoleColor(void)
{
CONSOLE_SCREEN_BUFFER_INFO Csbi;
GetConsoleScreenBufferInfo(ConsoleHandle, &Csbi);
return Csbi.wAttributes;
}
/*
* Returns TRUE on screen buffer resize.
*/
static BOOL PollConsoleInfo(void)
{
CONSOLE_SCREEN_BUFFER_INFO Csbi;
GetConsoleScreenBufferInfo(ConsoleHandle, &Csbi);
Width = Csbi.srWindow.Right - Csbi.srWindow.Left + 1;
Height = Csbi.srWindow.Bottom - Csbi.srWindow.Top + 1;
if(Width != OldWidth || Height != OldHeight) {
DisableCursor();
COORD Size;
Size.X = (USHORT)Width;
Size.Y = (USHORT)Height;
SetConsoleScreenBufferSize(ConsoleHandle, Size);
OldWidth = Width;
OldHeight = Height;
return TRUE;
}
SizeX = (int)Csbi.dwSize.X;
SizeY = (int)Csbi.dwSize.Y;
if(SavedAttributes == 0)
SavedAttributes = Csbi.wAttributes;
return FALSE;
}
static TCHAR ComputerName[MAX_COMPUTERNAME_LENGTH + 1] = _T("localhost");
static double CPUFrequency;
static TCHAR CPUName[256];
static ULONGLONG TotalMemory;
static ULONGLONG UsedMemory;
static double UsedMemoryPerc;
static ULONGLONG TotalPageMemory;
static ULONGLONG UsedPageMemory;
static double UsedPageMemoryPerc;
#define TO_MB(X) ((X)/1048576)
static ULONGLONG UpTime;
static void PollInitialSystemInfo(void)
{
LARGE_INTEGER PerformanceFrequency;
QueryPerformanceFrequency(&PerformanceFrequency);
CPUFrequency = (double)PerformanceFrequency.QuadPart / 1000000.0;
SYSTEM_INFO SystemInfo;
GetSystemInfo(&SystemInfo);
CPUCoreCount = SystemInfo.dwNumberOfProcessors;
HKEY Key;
if(SUCCEEDED(RegOpenKey(HKEY_LOCAL_MACHINE, _T("HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0\\"), &Key))) {
DWORD Count = 256;
if(SUCCEEDED(RegQueryValueEx(Key, _T("ProcessorNameString"), 0, 0, (LPBYTE)&CPUName[0], &Count))) {
RegCloseKey(Key);
}
}
DWORD ComputerNameSize = MAX_COMPUTERNAME_LENGTH + 1;
GetComputerName(ComputerName, &ComputerNameSize);
}
static void PollSystemInfo(void)
{
MEMORYSTATUSEX MemoryInfo;
MemoryInfo.dwLength = sizeof(MEMORYSTATUSEX);
GlobalMemoryStatusEx(&MemoryInfo);
TotalMemory = TO_MB(MemoryInfo.ullTotalPhys);
UsedMemory = TO_MB(MemoryInfo.ullTotalPhys - MemoryInfo.ullAvailPhys);
UsedMemoryPerc = (double)UsedMemory / (double)TotalMemory;
TotalPageMemory = TO_MB(MemoryInfo.ullTotalPageFile);
UsedPageMemory = TO_MB(MemoryInfo.ullTotalPageFile - MemoryInfo.ullAvailPageFile);
UsedPageMemoryPerc = (double)UsedPageMemory / (double)TotalPageMemory;
UpTime = GetTickCount64();
}
static HANDLE ProcessListThread;
DWORD WINAPI PollProcessListThreadProc(LPVOID lpParam)
{
UNREFERENCED_PARAMETER(lpParam);
while(1) {
PollProcessList(1000);
}
return 0;
}
typedef enum input_mode {
EXEC,
} input_mode;
static input_mode InputMode = EXEC;
#define TIME_STR_SIZE 12
/*
* Create a dd:hh:mm:ss time-string similar to how the modern taskmgr does it.
*
* The restriction of the day count to two digits is justified by the obvious
* fact that a Windows system cannot possibly reach an uptime of over 100 days
* without crashing.
*/
static void FormatTimeString(TCHAR *Buffer, DWORD BufferSize, ULONGLONG MS)
{
int Seconds = (int)(MS / 1000 % 60);
int Minutes = (int)(MS / 60000 % 60);
int Hours = (int)(MS / 3600000 % 24);
int Days = (int)(MS / 86400000);
_stprintf_s(Buffer, BufferSize, _T("%02d:%02d:%02d:%02d"), Days, Hours, Minutes, Seconds);
}
static void FormatMemoryString(TCHAR *Buffer, DWORD BufferSize, unsigned __int64 Memory)
{
double Value;
TCHAR Unit[255];
if (Memory < 1000ULL*1000) {
Value = Memory / 1000.0;
_tcscpy_s(Unit, _countof(Unit), _T("KB"));
} else if (Memory < 1000ULL*1000*1000) {
Value = Memory / (1000*1000.0);
_tcscpy_s(Unit, _countof(Unit), _T("MB"));
} else if (Memory < 1000ULL*1000*1000*1000) {
Value = Memory / (1000*1000*1000.0);
_tcscpy_s(Unit, _countof(Unit), _T("GB"));
} else {