자동 업데이트 프로그램에서 dll같이 다른 프로세스에 종속적인 파일들은
업데이트 하기전에 dll을 물고 있는 프로세스를 종료해야 한다.
그렇치 않으면 업데이트 후 OS를 재시작해야 한다.
프로세스를 나열하고 그 프로세스의 간략한 정보를 보여주는 프로그램을 만들어봤다.
참고: http://yonjh.tistory.com/1
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#include// Forward declarations: BOOL GetProcessList( ); BOOL ListProcessModules( DWORD dwPID ); BOOL ListProcessThreads( DWORD dwOwnerPID ); void printError( TCHAR* msg ); void main( ) { GetProcessList( ); } BOOL GetProcessList( ) { HANDLE hProcessSnap; HANDLE hProcess; PROCESSENTRY32 pe32; DWORD dwPriorityClass; // Take a snapshot of all processes in the system. hProcessSnap = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 ); if( hProcessSnap == INVALID_HANDLE_VALUE ) { printError( "CreateToolhelp32Snapshot (of processes)" ); return( FALSE ); } // Set the size of the structure before using it. pe32.dwSize = sizeof( PROCESSENTRY32 ); // Retrieve information about the first process, // and exit if unsuccessful if( !Process32First( hProcessSnap, &pe32 ) ) { printError( "Process32First" ); // Show cause of failure CloseHandle( hProcessSnap ); // Must clean up the // snapshot object! return( FALSE ); } // Now walk the snapshot of processes, and // display information about each process in turn do { //if ( lstrcmp(pe32.szExeFile, "notepad.exe") != 0 ) continue; printf( "\n\n" "=====================================================" ); printf( "\nPROCESS NAME: %s", pe32.szExeFile ); printf( "\n" "-----------------------------------------------------" ); // Retrieve the priority class. dwPriorityClass = 0; hProcess = OpenProcess( PROCESS_ALL_ACCESS, FALSE, pe32.th32ProcessID ); if( hProcess == NULL ) printError( "OpenProcess" ); else { dwPriorityClass = GetPriorityClass( hProcess ); if( !dwPriorityClass ) printError( "GetPriorityClass" ); CloseHandle( hProcess ); } printf( "\n process ID = 0x%08X", pe32.th32ProcessID ); printf( "\n thread count = %d", pe32.cntThreads ); printf( "\n parent process ID = 0x%08X", pe32.th32ParentProcessID ); printf( "\n Priority Base = %d", pe32.pcPriClassBase ); if( dwPriorityClass ) printf( "\n Priority Class = %d", dwPriorityClass ); // List the modules and threads associated with this process ListProcessModules( pe32.th32ProcessID ); ListProcessThreads( pe32.th32ProcessID ); } while( Process32Next( hProcessSnap, &pe32 ) ); CloseHandle( hProcessSnap ); return( TRUE ); } BOOL ListProcessModules( DWORD dwPID ) { HANDLE hModuleSnap = INVALID_HANDLE_VALUE; MODULEENTRY32 me32; // Take a snapshot of all modules in the specified process. hModuleSnap = CreateToolhelp32Snapshot( TH32CS_SNAPMODULE, dwPID ); if( hModuleSnap == INVALID_HANDLE_VALUE ) { printError( "CreateToolhelp32Snapshot (of modules)" ); return( FALSE ); } // Set the size of the structure before using it. me32.dwSize = sizeof( MODULEENTRY32 ); // Retrieve information about the first module, // and exit if unsuccessful if( !Module32First( hModuleSnap, &me32 ) ) { printError( "Module32First" ); // Show cause of failure CloseHandle( hModuleSnap ); // Must clean up the // snapshot object! return( FALSE ); } // Now walk the module list of the process, // and display information about each module do { printf( "\n\n MODULE NAME: %s", me32.szModule ); printf( "\n executable = %s", me32.szExePath ); printf( "\n process ID = 0x%08X", me32.th32ProcessID ); printf( "\n ref count (g) = 0x%04X", me32.GlblcntUsage ); printf( "\n ref count (p) = 0x%04X", me32.ProccntUsage ); printf( "\n base address = 0x%08X", (DWORD) me32.modBaseAddr ); printf( "\n base size = %d", me32.modBaseSize ); } while( Module32Next( hModuleSnap, &me32 ) ); CloseHandle( hModuleSnap ); return( TRUE ); } BOOL ListProcessThreads( DWORD dwOwnerPID ) { HANDLE hThreadSnap = INVALID_HANDLE_VALUE; THREADENTRY32 te32; // Take a snapshot of all running threads hThreadSnap = CreateToolhelp32Snapshot( TH32CS_SNAPTHREAD, 0 ); if( hThreadSnap == INVALID_HANDLE_VALUE ) return( FALSE ); // Fill in the size of the structure before using it. te32.dwSize = sizeof(THREADENTRY32 ); // Retrieve information about the first thread, // and exit if unsuccessful if( !Thread32First( hThreadSnap, &te32 ) ) { printError( "Thread32First" ); // Show cause of failure CloseHandle( hThreadSnap ); // Must clean up the // snapshot object! return( FALSE ); } // Now walk the thread list of the system, // and display information about each thread // associated with the specified process do { if( te32.th32OwnerProcessID == dwOwnerPID ) { printf( "\n\n THREAD ID = 0x%08X", te32.th32ThreadID ); printf( "\n base priority = %d", te32.tpBasePri ); printf( "\n delta priority = %d", te32.tpDeltaPri ); } } while( Thread32Next(hThreadSnap, &te32 ) ); CloseHandle( hThreadSnap ); return( TRUE ); } void printError( TCHAR* msg ) { DWORD eNum; TCHAR sysMsg[256]; TCHAR* p; eNum = GetLastError( ); FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, eNum, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default lang. sysMsg, 256, NULL ); // Trim the end of the line and terminate it with a null p = sysMsg; while( ( *p > 31 ) || ( *p == 9 ) ) ++p; do { *p-- = 0; } while( ( p >= sysMsg ) && ( ( *p == '.' ) || ( *p < 33 ) ) ); // Display the message printf( "\n WARNING: %s failed with error %d (%s)", msg, eNum, sysMsg ); }
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