【bat】tasklistでプロセス監視｜異常終了検知・自動再起動

@echo off
setlocal

set "TARGET=myapp.exe"
set "APP_PATH=C:\apps\myapp.exe"

tasklist /FI "IMAGENAME eq %TARGET%" 2>nul | findstr /i "%TARGET%" >nul
if errorlevel 1 (
    echo %TARGET% が停止しています。再起動します。
    start "" "%APP_PATH%"
    exit /b 1
)

echo %TARGET% は動作中です。
exit /b 0

@echo off
setlocal

set TARGET=myapp.exe
set LOGFILE=C:\logs\proc_monitor.log
if not exist "C:\logs" mkdir "C:\logs"

REM タイムスタンプ整形
set T=%TIME: =0%
set TS=%DATE% %T:~0,8%

REM /FI でフィルタリング: IMAGENAME が一致するプロセスのみ
tasklist /FI "IMAGENAME eq %TARGET%" 2>nul | findstr /i "%TARGET%" >nul
if %ERRORLEVEL% equ 0 (
    echo [%TS%] [OK] %TARGET% 動作中 >> "%LOGFILE%"
) else (
    echo [%TS%] [NG] %TARGET% が停止しています！ >> "%LOGFILE%"
)
endlocal

@echo off
setlocal enabledelayedexpansion

set TARGET=myapp.exe
set LOGFILE=C:\logs\proc_monitor.log
set INTERVAL=30
if not exist "C:\logs" mkdir "C:\logs"

call :log "===== 監視開始 対象: %TARGET% ====="

:MONITOR_LOOP
tasklist /FI "IMAGENAME eq %TARGET%" 2>nul | findstr /i "%TARGET%" >nul
if %ERRORLEVEL% equ 0 (
    call :log "[OK] %TARGET% 動作中"
) else (
    call :log "[NG] %TARGET% 停止検知！"
)
timeout /t %INTERVAL% /nobreak >nul
goto MONITOR_LOOP

:log
set T=%TIME: =0%
echo [%DATE% %T:~0,8%] %~1 >> "%LOGFILE%"
echo [%DATE% %T:~0,8%] %~1
goto :eof

@echo off
setlocal enabledelayedexpansion

set LOGFILE=C:\logs\multi_proc.log
set INTERVAL=60
if not exist "C:\logs" mkdir "C:\logs"

REM 監視対象プロセスをスペース区切りで列挙
set TARGETS=svchost.exe notepad.exe myapp.exe

:MULTI_LOOP
set T=%TIME: =0%
set TS=%DATE% %T:~0,8%
set NG_COUNT=0

echo ===== チェック: %TS% ===== >> "%LOGFILE%"

for %%P in (%TARGETS%) do (
    tasklist /FI "IMAGENAME eq %%P" 2>nul | findstr /i "%%P" >nul
    if !ERRORLEVEL! equ 0 (
        echo   [OK] %%P >> "%LOGFILE%"
    ) else (
        echo   [NG] %%P 停止！ >> "%LOGFILE%"
        set /a NG_COUNT+=1
    )
)

if %NG_COUNT% gtr 0 (
    echo 異常プロセス数: %NG_COUNT% 件 >> "%LOGFILE%"
)
echo. >> "%LOGFILE%"

timeout /t %INTERVAL% /nobreak >nul
goto MULTI_LOOP

@echo off
setlocal enabledelayedexpansion

set TARGET=myapp.exe
set LOGFILE=C:\logs\mem_monitor.log
REM メモリ上限（バイト）: 500 MB = 524288000
set MEM_LIMIT=524288000
if not exist "C:\logs" mkdir "C:\logs"

:MEM_LOOP
set T=%TIME: =0%
set TS=%DATE% %T:~0,8%

REM プロセスの存在確認
tasklist /FI "IMAGENAME eq %TARGET%" 2>nul | findstr /i "%TARGET%" >nul
if %ERRORLEVEL% neq 0 (
    echo [%TS%] [NG] %TARGET% 停止！ >> "%LOGFILE%"
    goto MEM_WAIT
)

REM WorkingSetSize（バイト）を取得
set MEM=0
for /f "skip=1 tokens=2 delims==" %%M in (
    'wmic process where "Name='%TARGET%'" get WorkingSetSize /value'
) do (
    if not "%%M"=="" set MEM=%%M
)

set /a MEM_MB=%MEM% / 1048576

if %MEM% gtr %MEM_LIMIT% (
    echo [%TS%] [WARN] %TARGET% メモリ使用量超過: !MEM_MB! MB >> "%LOGFILE%"
) else (
    echo [%TS%] [OK] %TARGET% メモリ: !MEM_MB! MB >> "%LOGFILE%"
)

:MEM_WAIT
timeout /t 60 /nobreak >nul
goto MEM_LOOP

@echo off
setlocal

set APP=C:\apps\myapp.exe
set LOGFILE=C:\logs\exitcode.log
if not exist "C:\logs" mkdir "C:\logs"

:RUN_LOOP
set T=%TIME: =0%
echo [%DATE% %T:~0,8%] %APP% 起動 >> "%LOGFILE%"

REM start /wait でプロセス終了まで待機
start /wait "" "%APP%"
set EXIT_CODE=%ERRORLEVEL%

set T=%TIME: =0%
if %EXIT_CODE% equ 0 (
    echo [%DATE% %T:~0,8%] [OK] 正常終了 EXITCODE=%EXIT_CODE% >> "%LOGFILE%"
) else (
    echo [%DATE% %T:~0,8%] [NG] 異常終了 EXITCODE=%EXIT_CODE% >> "%LOGFILE%"
    REM 異常終了時は10秒待って再起動
    timeout /t 10 /nobreak >nul
    goto RUN_LOOP
)

echo 処理完了
endlocal

@echo off
setlocal enabledelayedexpansion

set TARGET=myapp.exe
set APP_PATH=C:\apps\myapp.exe
set LOGFILE=C:\logs\watchdog.log
set INTERVAL=30
set MAX_RESTART=3
set RESTART_COUNT=0
if not exist "C:\logs" mkdir "C:\logs"

call :log "===== ウォッチドッグ開始 ====="

:WATCHDOG
tasklist /FI "IMAGENAME eq %TARGET%" 2>nul | findstr /i "%TARGET%" >nul
if %ERRORLEVEL% equ 0 (
    call :log "[OK] %TARGET% 動作中"
    set RESTART_COUNT=0
    goto WATCHDOG_WAIT
)

REM --- 異常検知 ---
set /a RESTART_COUNT+=1
call :log "[NG] %TARGET% 停止検知 (再起動: !RESTART_COUNT!/%MAX_RESTART%)"

if !RESTART_COUNT! gtr %MAX_RESTART% (
    call :log "[ABORT] 再起動上限到達。監視を停止します。"
    msg * "%TARGET% の再起動が上限に達しました。手動確認してください。"
    exit /b 1
)

REM ポップアップ通知（ログオン中ユーザーへ）
msg * "[監視] %TARGET% が停止しました。自動再起動します。"

REM 自動再起動
start "" "%APP_PATH%"
call :log "[INFO] %TARGET% を再起動しました"

:WATCHDOG_WAIT
timeout /t %INTERVAL% /nobreak >nul
goto WATCHDOG

:log
set T=%TIME: =0%
echo [%DATE% %T:~0,8%] %~1 >> "%LOGFILE%"
echo [%DATE% %T:~0,8%] %~1
goto :eof