windows下watchdog

//--------------------------------------------------------------------------- /**************************************************************************** **** Date: 2013-9-11 **** Author: Xu Qun **** Tel: 15901714590 **** Qq: 519329556 **** Company: Aera **** Product: NPC5000 **** Chip: W83627 **** Rev: 10.01 ****************************************************************************/ #include <vcl.h> #pragma hdrstop #include "Unit1.h" //--------------------------------------------------------------------------- #pragma package(smart_init) #pragma resource "*.dfm" #include "WinIo.h" #include "watchdog_yelei.h" TForm1 *Form1; unsigned char TimeUnit = 0; //时间单位: 0: 秒 1: 分 unsigned char Feed_WDT_Flag = 1; //是否喂狗: 0: 不喂狗 1: 喂狗 DWORD *lpThreadID = NULL; DWORD CALLBACK ThreadFunc(void *p); unsigned char T = 0; unsigned char *ptime; // HANDLE g_handle = NULL; // bool L = false; bool WinIo_Status = false; //--------------------------------------------------------------------------- __fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner) { } //--------------------------------------------------------------------------- void __fastcall TForm1::Button1Click(TObject *Sender) { Label2->Visible = true; // 判断时间单位 if (!Time_second->Checked) TimeUnit = 0x08; // 判断是否喂狗 if (NoFeed_WDT->Checked) Feed_WDT_Flag = 0; // 初始化watchdog InitWinIo_Message->Visible = true; if (!WinIo_Status) { if (InitializeWinIo()) { WinIo_Status = true; // MessageBox(NULL, "加载 WinIo 成功", NULL, MB_OK); InitWinIo_Message->Font->Color = clLime; InitWinIo_Message->Caption = "看门狗已开启！"; } else { // MessageBox(NULL, "加载 WinIo 失败", NULL, MB_OK); InitWinIo_Message->Font->Color = clRed; InitWinIo_Message->Caption = "看门狗无法正常工作！"; return; } } if(Time_value->Text == "") { MessageBox(NULL, "请重新输入看门狗时间初值", NULL, MB_OK); if (WinIo_Status) { ShutdownWinIo(); WinIo_Status = false; } InitWinIo_Message->Font->Color = clYellow; InitWinIo_Message->Caption = "看门狗已停止"; return; } if (Feed_WDT->Checked) { if(feed_inter_data->Text == "") { MessageBox(NULL, "请重新输入喂狗时间间隔", NULL, MB_OK); if (WinIo_Status) { ShutdownWinIo(); WinIo_Status = false; } InitWinIo_Message->Font->Color = clYellow; InitWinIo_Message->Caption = "看门狗已停止"; return; } } Init_WatchDog(); // 设置watchdog unit WatchDog_SetUnit(TimeUnit); // 设置watchdog timer // WatchDog_SetTimer((unsigned char)Time_value->Text.c_str()); T = StrToInt(Time_value->Text); WatchDog_SetTimer(StrToInt(Time_value->Text)); if (Feed_WDT->Checked) { g_handle = CreateThread(0, 0, ThreadFunc, ptime, 0, lpThreadID); if ( !g_handle ) { ShowMessage("Thread create fail!"); } } } //--------------------------------------------------------------------------- void __fastcall TForm1::Feed_WDTClick(TObject *Sender) { // 设置喂狗参数为可见 feed_inter_label->Visible = true; feed_inter_data->Visible = true; } //--------------------------------------------------------------------------- void __fastcall TForm1::NoFeed_WDTClick(TObject *Sender) { // 设置喂狗参数为不可见 feed_inter_label->Visible = false; feed_inter_data->Visible = false; TerminateThread(g_handle, 0); } //--------------------------------------------------------------------------- void __fastcall TForm1::Time_valueKeyPress(TObject *Sender, char &Key) { if (Time_value->Text != "") { if (!(((Key >= '0') && (Key <= '9')) || (Key == VK_BACK) || (Key == VK_DELETE))) { Key = 0; } if ((StrToInt(Time_value->Text)) > 255 || StrToInt(Time_value->Text) < 0) { MessageBox(NULL, "输入数值不对(范围是:0-255)", NULL, MB_OK); Time_value->Text = 0; } } } //--------------------------------------------------------------------------- void __fastcall TForm1::feed_inter_dataKeyPress(TObject *Sender, char &Key) { if (feed_inter_data->Text != "") { if (!(((Key >= '0') && (Key <= '9')) || (Key == VK_BACK) || (Key == VK_DELETE))) { Key = 0; } if ((StrToInt(feed_inter_data->Text)) > 255 || StrToInt(feed_inter_data->Text) < 0) { MessageBox(NULL, "输入数值不对(范围是:0-255)", NULL, MB_OK); feed_inter_data->Text = 0; } } } //--------------------------------------------------------------------------- void __fastcall TForm1::Button2Click(TObject *Sender) { if (WinIo_Status) { WatchDog_Stop(); ShutdownWinIo(); } WinIo_Status = false; InitWinIo_Message->Font->Color = clYellow; InitWinIo_Message->Caption = "看门狗已停止"; InitWinIo_Message->Visible = true; } //--------------------------------------------------------------------------- DWORD CALLBACK ThreadFunc(void *p) { while(1) { WatchDog_Feed(T); Sleep((unsigned char)&p); } } void __fastcall TForm1::Label2DblClick(TObject *Sender) { L = !L; if (L) { Label2->Caption = "Trace"; } else Label2->Caption = "I love you"; } //---------------------------------------------------------------------------