history.c File Reference

#include "precomp.h"

Include dependency graph for history.c:

Go to the source code of this file.

Classes
struct	tagHISTORY

Typedefs
typedef struct tagHISTORY	HIST_ENTRY
typedef struct tagHISTORY *	LPHIST_ENTRY

Functions
VOID	InitHistory (VOID)
VOID	History_move_to_bottom (VOID)
VOID	History (INT dir, LPTSTR commandline)
VOID	CleanHistory (VOID)
VOID	History_del_current_entry (LPTSTR str)
static VOID	del (LPHIST_ENTRY item)
static VOID	add_at_bottom (LPTSTR string)
VOID	set_size (INT new_size)
INT	CommandHistory (LPTSTR param)
LPCTSTR	PeekHistory (INT dir)

Variables
static INT	size
static INT	max_size = 100
static LPHIST_ENTRY	Top = NULL
static LPHIST_ENTRY	Bottom = NULL
static LPHIST_ENTRY	curr_ptr = NULL

Typedef Documentation

HIST_ENTRY

typedef struct tagHISTORY HIST_ENTRY

LPHIST_ENTRY

typedef struct tagHISTORY * LPHIST_ENTRY

Function Documentation

add_at_bottom()

static VOID add_at_bottom ( LPTSTR  string )

static

Definition at line 225 of file history.c.

{
    LPHIST_ENTRY tmp;

    ASSERT(Top && Bottom);

    /*delete first entry if maximum number of entries is reached*/
    while (size>=max_size)
        del(Top->prev);

    while (_istspace(*string))
        string++;

    if (*string==_T('\0'))
        return;

    /*if new entry is the same than the last do not add it*/
    if (size)
    {
        if (_tcscmp(string,Bottom->next->string)==0)
            return;
    }

    /*create new empty Bottom*/
    tmp = cmd_alloc(sizeof(HIST_ENTRY));
    if (!tmp)
    {
        WARN("Cannot allocate memory for new Bottom!\n");
        return;
    }

    /*fill old bottom with string, it will become new Bottom->next*/
    Bottom->string = cmd_alloc((_tcslen(string)+1)*sizeof(TCHAR));
    if (!Bottom->string)
    {
        WARN("Cannot allocate memory for Bottom->string!\n");
        cmd_free(tmp);
        return;
    }
    _tcscpy(Bottom->string,string);

    tmp->next = Bottom;
    tmp->prev = NULL;
    tmp->string = NULL;

    Bottom->prev = tmp;

    /*save the new Bottom value*/
    Bottom = tmp;

    /*set new size*/
    size++;
}

Referenced by History().

CleanHistory()

VOID CleanHistory

(

VOID

)

Definition at line 163 of file history.c.

{
    ASSERT(Top && Bottom);

    while (Bottom->next != Top)
        del(Bottom->next);

    cmd_free(Top);
    cmd_free(Bottom);
}

Referenced by Cleanup(), and CommandHistory().

CommandHistory()

INT CommandHistory

(

LPTSTR

param

)

Definition at line 71 of file history.c.

{
    LPTSTR tmp;
    INT tmp_int;
    LPHIST_ENTRY h_tmp;
    TCHAR szBuffer[2048];

    tmp=_tcschr(param,_T('/'));

    if (tmp)
    {
        param=tmp;
        switch (_totupper(param[1]))
        {
            case _T('F'):/*delete history*/
                CleanHistory();InitHistory();
                break;

            case _T('R'):/*read history from standard in*/
                for(;;)
                {
                    ConInString(szBuffer,sizeof(szBuffer)/sizeof(TCHAR));
                    if (*szBuffer!=_T('\0'))
                        History(0,szBuffer);
                    else
                        break;
                }
                break;

            case _T('A'):/*add an antry*/
                History(0,param+2);
                break;

            case _T('S'):/*set history size*/
                if ((tmp_int=_ttoi(param+2)))
                    set_size(tmp_int);
                break;

            default:
                return 1;
        }
    }
    else
    {
        for (h_tmp = Top->prev; h_tmp != Bottom; h_tmp = h_tmp->prev)
            ConErrPuts(h_tmp->string);
    }
    return 0;
}

del()

static VOID del ( LPHIST_ENTRY  item )

static

Definition at line 199 of file history.c.

{
    ASSERT(Top && Bottom);

    if (item==NULL || item==Top || item==Bottom)
    {
        TRACE ("del in " __FILE__ ": returning\n"
                "item is 0x%08x (Bottom is0x%08x)\n",
                item, Bottom);
        return;
    }

    /*free string's mem*/
    if (item->string)
        cmd_free(item->string);

    /*set links in prev and next item*/
    item->next->prev=item->prev;
    item->prev->next=item->next;

    cmd_free(item);

    size--;
}

Referenced by add_at_bottom(), CleanHistory(), find_prop_name_prot(), History_del_current_entry(), inf_value_parse(), ReceiveLine(), RtlSplayTreeTest(), set_size(), setValue(), and test_SetupDiInstallClassExA().

History()

VOID History	(	INT	dir,
		LPTSTR	commandline
	)

Definition at line 326 of file history.c.

{
    ASSERT(Top && Bottom);

    if (dir==0)
    {
        add_at_bottom(commandline);
        curr_ptr = Bottom;
        return;
    }

    if (size==0)
    {
        commandline[0]=_T('\0');
        return;
    }

    if (dir<0)/*key up*/
    {
        if (curr_ptr->next==Top || curr_ptr==Top)
        {
#ifdef WRAP_HISTORY
            curr_ptr = Bottom;
#else
            curr_ptr = Top;
            commandline[0]=_T('\0');
            return;
#endif
        }

        curr_ptr = curr_ptr->next;
        if (curr_ptr->string)
            _tcscpy(commandline,curr_ptr->string);
    }

    if (dir>0)
    {
        if (curr_ptr->prev==Bottom || curr_ptr==Bottom)
        {
#ifdef WRAP_HISTORY
            curr_ptr = Top;
#else
            curr_ptr = Bottom;
            commandline[0]=_T('\0');
            return;
#endif
        }

        curr_ptr = curr_ptr->prev;
        if (curr_ptr->string)
            _tcscpy(commandline,curr_ptr->string);
    }
}

Referenced by CommandHistory(), History_del_current_entry(), and ReadCommand().

History_del_current_entry()

VOID History_del_current_entry

(

LPTSTR

str

)

Definition at line 175 of file history.c.

{
    LPHIST_ENTRY tmp;

    ASSERT(Top && Bottom);

    if (size == 0)
        return;

    if (curr_ptr == Bottom)
        curr_ptr = Bottom->next;

    if (curr_ptr == Top)
        curr_ptr = Top->prev;


    tmp = curr_ptr;
    curr_ptr = curr_ptr->prev;
    del(tmp);
    History(-1, str);
}

Referenced by ReadCommand().

History_move_to_bottom()

VOID History_move_to_bottom

(

VOID

)

Definition at line 280 of file history.c.

{
    ASSERT(Top && Bottom);

    curr_ptr = Bottom;
}

Referenced by ReadCommand().

InitHistory()

VOID InitHistory

(

VOID

)

Definition at line 132 of file history.c.

{
    size = 0;

    Top = cmd_alloc(sizeof(HIST_ENTRY));
    if (!Top)
    {
        WARN("Cannot allocate memory for Top!\n");
        return;
    }
    Bottom = cmd_alloc(sizeof(HIST_ENTRY));
    if (!Bottom)
    {
        WARN("Cannot allocate memory for Bottom!\n");
        cmd_free(Top);
        Top = NULL;
        return;
    }

    Top->prev = Bottom;
    Top->next = NULL;
    Top->string = NULL;

    Bottom->prev = NULL;
    Bottom->next = Top;
    Bottom->string = NULL;

    curr_ptr = Bottom;
}

Referenced by CommandHistory(), and Initialize().

PeekHistory()

LPCTSTR PeekHistory

(

INT

dir

)

Definition at line 287 of file history.c.

{
    LPHIST_ENTRY entry = curr_ptr;

    ASSERT(Top && Bottom);

    if (dir == 0)
        return NULL;

    if (dir < 0)
    {
        /* key up */
        if (entry->next == Top || entry == Top)
        {
#ifdef WRAP_HISTORY
            entry = Bottom;
#else
            return NULL;
#endif
        }
        entry = entry->next;
    }
    else
    {
        /* key down */
        if (entry->prev == Bottom || entry == Bottom)
        {
#ifdef WRAP_HISTORY
            entry = Top;
#else
            return NULL;
#endif
        }
        entry = entry->prev;
    }

    return entry->string;
}

Referenced by ReadCommand().

set_size()

VOID set_size

(

INT

new_size

)

Definition at line 121 of file history.c.

{
    ASSERT(Top && Bottom);

    while (new_size<size)
        del(Top->prev);

    max_size=new_size;
}

Referenced by CommandHistory(), set_end_of_file_information(), and set_valid_data_length_information().

Variable Documentation

Bottom

LPHIST_ENTRY Bottom = NULL

static

Definition at line 54 of file history.c.

Referenced by add_at_bottom(), BitBlt(), CleanHistory(), CommandHistory(), ConioFillRegion(), ConioMoveRegion(), CreateProgressBar(), CreateProgressBarEx(), del(), DrawBorder(), DrawGenericList(), DrawListFrame(), DrawPartitionList(), DrawThickBorder(), History(), History_del_current_entry(), History_move_to_bottom(), InbvSetScrollRegion(), InbvSolidColorFill(), InitHistory(), InitPartitionListUi(), IntArc(), IntDrawRoundRect(), IntFillRoundRect(), IntRoundRect(), MiniTuiDrawProgressBarCenter(), NtGdiCreateEllipticRgn(), NtGdiEllipse(), PeekHistory(), ScrollPageDownGenericList(), set_size(), ShowPartitionSizeInputBox(), TuiDrawBox(), TuiDrawCenteredText(), TuiDrawProgressBar(), TuiDrawProgressBarCenter(), TuiDrawShadow(), TuiFillArea(), UiDrawBox(), UiDrawCenteredText(), UiDrawProgressBar(), UiDrawShadow(), UiFillArea(), UiInfoBox(), VidBiosScrollWindow(), VidSetScrollRegion(), and VidSolidColorFill().

curr_ptr

LPHIST_ENTRY curr_ptr = NULL

static

Definition at line 56 of file history.c.

Referenced by History(), History_del_current_entry(), History_move_to_bottom(), InitHistory(), and PeekHistory().

max_size

INT max_size = 100

static

Definition at line 51 of file history.c.

Referenced by _String_base< _Tp, _Alloc >::_M_allocate_block(), _M_append_sum(), _M_append_sum_pos(), add_at_bottom(), basic_string< char, char_traits< char >, allocator< char > >::append(), AviMuxIn_Receive(), create_cab_file(), CreateAudioDeviceList(), basic_string< char, char_traits< char >, allocator< char > >::max_size(), rdssl_mod_exp(), vector< CTestInfo >::reserve(), basic_string< char, char_traits< char >, allocator< char > >::reserve(), SCROLL_DrawMovingThumb(), set_cab_parameters(), set_size(), TConfig::set_value(), test_heap(), test_IPersistStream(), test_TTM_ADDTOOL(), and wine_dbg_sprintf().

size

INT size

static

Definition at line 51 of file history.c.

Top

LPHIST_ENTRY Top = NULL

static

Definition at line 53 of file history.c.

Referenced by add_at_bottom(), BaseControlVideoImpl_SetDestinationPosition(), BaseControlVideoImpl_SetSourcePosition(), BaseControlWindowImpl_put_Top(), BaseControlWindowImpl_SetWindowPosition(), BasicVideo_SetDestinationPosition(), BasicVideo_SetSourcePosition(), BitBlt(), CleanHistory(), CommandHistory(), CreateFileSystemList(), CreateProgressBar(), CreateProgressBarEx(), del(), DisplayCharacter(), DisplayStringXY(), DrawGenericList(), DrawGenericListCurrentItem(), GuiWriteStream(), History(), History_del_current_entry(), History_move_to_bottom(), InbvSetProgressBarCoordinates(), InbvSetScrollRegion(), InbvSolidColorFill(), InitHistory(), InitPartitionListUi(), IntArc(), IntDrawRoundRect(), InternetExplorer_put_Top(), IntFillRoundRect(), IntRoundRect(), MiniQueueWorkItem(), MiniTuiDrawProgressBar(), MiniTuiDrawProgressBarCenter(), NtGdiCreateEllipticRgn(), NtGdiEllipse(), PeekHistory(), RleBitBlt(), set_size(), SetPixel(), ShellUIHelper2_AddDesktopComponent(), ShowPartitionSizeInputBox(), TuiDrawBox(), TuiDrawCenteredText(), TuiDrawProgressBar(), TuiDrawProgressBarCenter(), TuiDrawShadow(), TuiFillArea(), UiDrawBox(), UiDrawCenteredText(), UiDrawProgressBar(), UiDrawShadow(), UiFillArea(), UiInfoBox(), VgaScroll(), VidBitBlt(), VidBufferToScreenBlt(), VidDisplayStringXY(), VideoWindow_put_Top(), VideoWindow_SetWindowPosition(), VidpSetPixel(), VidScreenToBufferBlt(), VidSetScrollRegion(), VidSolidColorFill(), and WebBrowser_put_Top().