Monday, March 30, 2009

cleanMem

#include <windows.h>
#include <stdio.h>
#include <tchar.h>
#include "psapi.h"

#pragma comment(lib, "psapi.lib")

void PrintProcessNameAndID( DWORD processID )
{
    TCHAR szProcessName[MAX_PATH] = TEXT("<unknown>");

    // Get a handle to the process.
    // must set access right: PROCESS_ALL_ACCESS
    HANDLE hProcess = OpenProcess( PROCESS_ALL_ACCESS
        /*| PROCESS_QUERY_INFORMATION | PROCESS_VM_READ */,
                                   FALSE, processID );

    // Get the process name.

    if (NULL != hProcess )
    {
        HMODULE hMod;
        DWORD cbNeeded;

        if ( EnumProcessModules( hProcess, &hMod, sizeof(hMod),
             &cbNeeded) )
        {
            GetModuleBaseName( hProcess, hMod, szProcessName,
                               sizeof(szProcessName)/sizeof(TCHAR) );
        }
    }

    // Print the process name and identifier.

    _tprintf( TEXT("%s  (PID: %u)\n"), szProcessName, processID );

    EmptyWorkingSet( hProcess );

    CloseHandle( hProcess );
}

void main( )
{
    // Get the list of process identifiers.

    DWORD aProcesses[1024], cbNeeded, cProcesses;
    unsigned int i;

    if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) )
        return;

    // Calculate how many process identifiers were returned.

    cProcesses = cbNeeded / sizeof(DWORD);

    // Print the name and process identifier for each process.

    for ( i = 0; i < cProcesses; i++ )
        if( aProcesses[i] != 0 )
            PrintProcessNameAndID( aProcesses[i] );
}