static VOID HistoryAddEntry ( PCSRSS_CONSOLE Console ) [static]
Definition at line 62 of file lineinput.c.
{
    UNICODE_STRING NewEntry;
    PHISTORY_BUFFER Hist;
    INT i;

    NewEntry.Length = NewEntry.MaximumLength = Console->LineSize * sizeof(WCHAR);
    NewEntry.Buffer = Console->LineBuffer;

    if (!(Hist = HistoryCurrentBuffer(Console)))
        return;

    /* Don't add blank or duplicate entries */
    if (NewEntry.Length == 0 || Hist->MaxEntries == 0 ||
        (Hist->NumEntries > 0 &&
         RtlEqualUnicodeString(&Hist->Entries[Hist->NumEntries - 1], &NewEntry, FALSE)))
    {
        return;
    }

    if (Console->HistoryNoDup)
    {
        /* Check if this line has been entered before */
        for (i = Hist->NumEntries - 1; i >= 0; i--)
        {
            if (RtlEqualUnicodeString(&Hist->Entries[i], &NewEntry, FALSE))
            {
                /* Just rotate the list to bring this entry to the end */
                NewEntry = Hist->Entries[i];
                memmove(&Hist->Entries[i], &Hist->Entries[i + 1],
                        (Hist->NumEntries - (i + 1)) * sizeof(UNICODE_STRING));
                Hist->Entries[Hist->NumEntries - 1] = NewEntry;
                Hist->Position = Hist->NumEntries - 1;
                return;
            }
        }
    }

    if (Hist->NumEntries == Hist->MaxEntries)
    {
        /* List is full, remove oldest entry */
        RtlFreeUnicodeString(&Hist->Entries[0]);
        memmove(&Hist->Entries[0], &Hist->Entries[1],
                --Hist->NumEntries * sizeof(UNICODE_STRING));
    }

    if (NT_SUCCESS(RtlDuplicateUnicodeString(0, &NewEntry, &Hist->Entries[Hist->NumEntries])))
        Hist->NumEntries++;
    Hist->Position = Hist->NumEntries - 1;
}
ReactOS Development > Doxygen
