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/*

 * System Monitor

 * version 1.36

 * Author: Leency

*/

#define MEMSIZE 4096*30

//===================================================//

//                                                   //

//                       LIB                         //

//                                                   //

//===================================================//

#include "../lib/gui.h"

#include "../lib/fs.h"

#include "../lib/list_box.h"

#include "../lib/obj/libimg.h"

#include "../lib/obj/box_lib.h"

#include "../lib/patterns/select_list.h"

#include "../lib/patterns/restart_process.h"

//===================================================//

//                                                   //

//                      CONST                        //

//                                                   //

//===================================================//

#define GAP 16   //Window padding

#define WIN_CONTENT_X GAP

#define WIN_CONTENT_Y GAP+15

#define PROCESS_LIST_W 260

#define RIGHT_X PROCESS_LIST_W + GAP + GAP + 22

#define ICONGAP 26

#define BOTPANEL_H 36

#ifdef LANG_RUS

	#define T_APP_TITLE      "���⥬�� ������"

	#define T_SHOW_SYSTEM    "���⥬��"

	#define T_DETAILS        "���஡���"

	#define T_PROC_KILL      "����� ������"

	#define T_PROC_INFO      "���"

	#define T_PROC_HEADER    "�����        ��� ��      �� %"

	#define T_CPU_LOAD       "����㧪� ������ %i%%   "

	#define T_RAM_USAGE      "������ ���: %i �� ᢮����� �� %i ��"

	#define T_RD_USAGE       "���⥬�� ���: %i �� ᢮����� �� 1.4 ��"

	#define T_TMP_USAGE      "TMP%i ���: %i �� ᢮����� �� %i ��"

#else

	#define T_APP_TITLE      "System Monitor"

	#define T_SHOW_SYSTEM    "System"

	#define T_DETAILS        "Details"

	#define T_PROC_KILL      "Terminate"

	#define T_PROC_INFO      "Info"

	#define T_PROC_HEADER    "Process        RAM Kb     CPU %"

	#define T_CPU_LOAD       "CPU load %i%%   "

	#define T_RAM_USAGE      "RAM usage: %i Mb free of %i Mb"

	#define T_RD_USAGE       "System disk usage: %i Kb free of 1.4 Mb"

	#define T_TMP_USAGE      "TMP%i usage: %i Mb free of %i Mb"

#endif

enum {

	BTN_ID_SHOW_SYSTEM_PROCESSES=200,

	BTN_ID_PROC_KILL,

	BTN_ID_PROC_INFO,

	BTN_ID_MENU

};

//===================================================//

//                                                   //

//                       VARS                        //

//                                                   //

//===================================================//

int current_process_id = 0;

int proc_list[256];

checkbox show_system = { T_SHOW_SYSTEM, false };

sensor cpu;

sensor ram;

sensor rd;

sensor tmp;

proc_info Form;

int right_w;

//===================================================//

//                                                   //

//                       CODE                        //

//                                                   //

//===================================================//

void load_lib()

{

	load_dll(libimg, #libimg_init,1);

	load_dll(boxlib, #box_lib_init,0);

}

void main()

{

	int btn;

	load_lib();

	@SetEventMask(EVM_REDRAW + EVM_KEY + EVM_BUTTON + EVM_MOUSE + EVM_MOUSE_FILTER);

	loop() switch(@WaitEventTimeout(50))

	{

	   	case evMouse:

			SelectList_ProcessMouse();

			break;

		case evKey:

			GetKeys();

			if (key_scancode == SCAN_CODE_ESC) ExitProcess();

			if (key_scancode == SCAN_CODE_DEL) EventKillCurrentProcess();

			if (select_list.ProcessKey(key_scancode)) SelectList_LineChanged();

			break;

		case evButton:

			btn = @GetButtonID();

			if (1==btn) ExitProcess();

			if (show_system.click(btn)) {

				SelectList_LineChanged();

			}

			if (BTN_ID_PROC_KILL == btn) {

				EventKillCurrentProcess();

			}

			if (BTN_ID_PROC_INFO == btn) {

				RunProgram("/sys/tinfo", itoa(GetProcessSlot(current_process_id)));

			}

			break;

		case evReDraw:

			sc.get();

			DefineAndDrawWindow(screen.width/2 - 350, 100, 700, 490, 0x33, sc.work, T_APP_TITLE,0);

			GetProcessInfo(#Form, SelfInfo);

			if (Form.status_window&ROLLED_UP) break;

			if (Form.width  < RIGHT_X+370) { MoveSize(OLD,OLD,RIGHT_X+370,OLD); break; }

			if (Form.height < 420) { MoveSize(OLD,OLD,OLD,420); break; }

			right_w = Form.cwidth - RIGHT_X - GAP;

			right_w &= ~1; // make sure the number is even

			WriteText(GAP+5, WIN_CONTENT_Y-20, 0x90, sc.work_text, T_PROC_HEADER);

			//bool burger_active = false;

			//if (menu_id == OPEN_FILE) burger_active = true;

			//DrawTopPanelButton(BTN_ID_MENU, Form.cwidth-GAP-3, GAP, -1, burger_active);

			SelectList_Init(GAP, WIN_CONTENT_Y, PROCESS_LIST_W,

				Form.cheight-BOTPANEL_H-WIN_CONTENT_Y);

			SelectList_DrawBorder();

			DrawBar(select_list.x-2, select_list.y+select_list.h+2,

				select_list.w+scroll1.size_x+4, BOTPANEL_H, sc.work);

			DrawCaptButton(PROCESS_LIST_W+GAP-110+18, select_list.y+select_list.h+5,

				110,23,BTN_ID_PROC_KILL,0xF38181, 0xFFFfff, T_PROC_KILL);

			DrawCaptButton(PROCESS_LIST_W+GAP-165+18, select_list.y+select_list.h+5,

				46,23,BTN_ID_PROC_INFO,sc.button, sc.button_text, T_PROC_INFO);

			show_system.draw(GAP-1, select_list.y+select_list.h+10);

			//WriteText(RIGHT_X, WIN_CONTENT_Y+25, 0x90, sc.work, "Update period: 5 seconds");

			cpu.set_size(RIGHT_X, WIN_CONTENT_Y+25, right_w, 100);

			ram.set_size(RIGHT_X, WIN_CONTENT_Y+170, right_w, 23);

			rd.set_size(RIGHT_X, WIN_CONTENT_Y+240, right_w, 23);

		default:

			MonitorCpu();

			MonitorRam();

			SelectList_LineChanged();

			MonitorRd();

			MonitorTmp();

	}

}

void EventKillCurrentProcess()

{

	KillProcess(current_process_id);

	pause(10);

	SelectList_LineChanged();

}

void Processes__GetProcessList()

{

	int i, j;

	proc_info Process;

	select_list.count=0;

	for (i=0; i

	{

		GetProcessInfo(#Process, i);

		if (Process.name)

		{

			for (j=0; j<11; j++) if (Process.name[j]!=' ') {

				if (show_system.checked==false) {

					//do not show system process

					if (Process.name[0]=='@') break;

					if (!strcmp(#Process.name, "IDLE")) break;

					if (!strcmp(#Process.name, "OS")) break;

				}

				proc_list[select_list.count] = i;

				select_list.count++;

				break;

			}

		}

	}

}

void SelectList_DrawLine(dword i)

{

	int posy, j, len;

	char cpu_use[16], mem_use[16], mem_use_pretty[16];

	dword bg_color;

	proc_info Process;

	static unsigned maxcpu;

	if (!maxcpu) maxcpu = GetCpuFrequency();

	GetProcessInfo(#Process, proc_list[i+select_list.first]);

	posy = i *select_list.item_h + select_list.y;

	if (i % 2) bg_color = 0xFFFfff; else bg_color = 0xF0F0F0;

	if (i+select_list.first == select_list.cur_y) {

		current_process_id = Process.ID;

		bg_color = 0x67CCEB;

	}

	DrawBar(select_list.x, posy, select_list.w, select_list.item_h, bg_color);

	WriteText(GAP+5, posy+select_list.text_y, 0x90, 0, #Process.name);

	if (Process.use_memory < 3670016000)

	{

		sprintf(#mem_use, "%i", Process.use_memory/1024);

		len = strlen(#mem_use);

		strcpy(#mem_use_pretty, "               ");

		for (j=1; j<=len; j++) {

			EDI = sizeof(mem_use_pretty)-1-j - calc(j/4);

			mem_use_pretty[EDI] = mem_use[len-j];

		}

		WriteText(GAP+109, posy+select_list.text_y, 0x90, 0x444444, #mem_use_pretty+16-9);

	}

	sprintf(#cpu_use, "%i", Process.use_cpu*100/maxcpu);

	if (maxcpu) WriteText(GAP+203 - calc(strlen(#cpu_use)-4*8),

		posy+select_list.text_y, 0x90, 0x444444, #cpu_use);

}

void SelectList_LineChanged()

{

	Processes__GetProcessList();

	SelectList_Draw();

}

void MonitorRd()

{

	dword rdempty = malloc(1440*1024);

	CreateFile(0, 1440*1024, rdempty, "/rd/1/rdempty");

	free(rdempty);

	rdempty = get_file_size("/rd/1/rdempty") / 1024;

	DeleteFile("/rd/1/rdempty");

	sprintf(#param, T_RD_USAGE, rdempty);

	DrawIconWithText(RIGHT_X, rd.y - 25, 5, #param);

	rd.draw_progress(rdempty * rd.w / 1440);

}

dword GetTmpDiskFreeSpace(int _id)

{

	DIR_SIZE dir_size;

	sprintf(#param, "/tmp%i/1", _id);

	dir_size.get(#param);

	dir_size.bytes += dir_size.files/2 + 32 * 512; //file attr size + FAT table size

	dir_size.bytes /= 1024*1024; //convert to MiB

	return dir_size.bytes;

}

void MonitorTmp()

{

	char text_status[64];

	int i, yy=WIN_CONTENT_Y+300;

	dword tmp_size[10];

	dword free_space;

	for (i=0; i<=9; i++)

	{

		get_file_size( sprintf(#param, "/tmp%i/1", i) );

		if (EAX) {

			tmp_size[i] =  EAX / 1024 / 1024;

			free_space = tmp_size[i] - GetTmpDiskFreeSpace(i);

			sprintf(#text_status, T_TMP_USAGE, i, free_space, tmp_size[i]);

			tmp.set_size(RIGHT_X, yy, right_w, 23);

			tmp.draw_progress(free_space * right_w / tmp_size[i]);

			DrawIconWithText(RIGHT_X, tmp.y - 25, 50, #text_status);

			yy += 65;

		}

	}

}

void DrawIconWithText(dword _x, _y, _icon, _title)

{

	int size = DrawIcon16(_x, _y, sc.work, _icon);

	WriteTextWithBg(_x+ICONGAP, _y + size - 16, 0xD0, sc.work_text, _title, sc.work);

}

dword GetCpuLoad(dword max_h)

{

	dword idle;

	dword CPU_SEC = GetCpuFrequency() >> 20 + 1;

	dword IDLE_SEC = GetCpuIdleCount() >> 20 * max_h;

	EAX = IDLE_SEC;

	EBX = CPU_SEC;

	$cdq

	$div ebx

	idle = EAX;

	return max_h - idle;

}

int pos=0;

void MonitorCpu()

{

	static dword cpu_stack[1980*3];

	int i;

	if (!cpu.w) return;

	cpu_stack[pos] = GetCpuLoad(cpu.h);

	if (cpu_stack[pos]<=2) || (cpu_stack[pos]>cpu.h) cpu_stack[pos]=2;

	sprintf(#param, T_CPU_LOAD, cpu_stack[pos]);

	DrawIconWithText(RIGHT_X, cpu.y - 25, 48, #param);

	#define LINEW 8

	for (i=0; i

		DrawBar(i+cpu.x, cpu.y, LINEW, cpu.h-cpu_stack[i], PROGRESS_BG);

		DrawBar(i+cpu.x, cpu.h-cpu_stack[i]+cpu.y, LINEW, cpu_stack[i], 0xDFA13B);

		//DrawBar(i+LINEW+cpu.x, cpu.y, 1, cpu.h, PROGRESS_BG);

	}

	pos++;

	if (pos>=right_w) {

		pos = right_w-1;

		for (i=0; i

			cpu_stack[i] = cpu_stack[i+1];

		}

	}

}

void MonitorRam()

{

	ram.draw_progress(GetFreeRAM()*ram.w/GetTotalRAM());

	sprintf(#param, T_RAM_USAGE, GetFreeRAM()/1024, GetTotalRAM()/1024);

	DrawIconWithText(RIGHT_X, ram.y - 25, 51, #param);

}