win32ss/user/winsrv/consrv/condrv/dummyterm.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS Console Server DLL
   4  * FILE:            condrv/dummyterm.c
   5  * PURPOSE:         Dummy Terminal used when no terminal
   6  *                  is attached to the specified console.
   7  * PROGRAMMERS:     Hermes Belusca-Maito (hermes.belusca@sfr.fr)
   8  */
   9
  10 /* INCLUDES *******************************************************************/
  11
  12 #include <consrv.h>
  13
  14 /* DUMMY TERMINAL INTERFACE ***************************************************/
  15
  16 static NTSTATUS NTAPI
  17 DummyInitTerminal(IN OUT PTERMINAL This,
  18                   IN PCONSOLE Console)
  19 {
  20     return STATUS_SUCCESS;
  21 }
  22
  23 static VOID NTAPI
  24 DummyDeinitTerminal(IN OUT PTERMINAL This)
  25 {
  26 }
  27
  28
  29
  30 /************ Line discipline ***************/
  31
  32 static NTSTATUS NTAPI
  33 DummyReadStream(IN OUT PTERMINAL This,
  34                 /**/IN PUNICODE_STRING ExeName /**/OPTIONAL/**/,/**/
  35                 IN BOOLEAN Unicode,
  36                 /**PWCHAR Buffer,**/
  37                 OUT PVOID Buffer,
  38                 IN OUT PCONSOLE_READCONSOLE_CONTROL ReadControl,
  39                 IN ULONG NumCharsToRead,
  40                 OUT PULONG NumCharsRead OPTIONAL)
  41 {
  42     /*
  43      * We were called because the console was in cooked mode.
  44      * There is nothing to read, wait until a real terminal
  45      * is plugged into the console.
  46      */
  47     return STATUS_PENDING;
  48 }
  49
  50 static NTSTATUS NTAPI
  51 DummyWriteStream(IN OUT PTERMINAL This,
  52                  PTEXTMODE_SCREEN_BUFFER Buff,
  53                  PWCHAR Buffer,
  54                  DWORD Length,
  55                  BOOL Attrib)
  56 {
  57     /*
  58      * We were called because the console was in cooked mode.
  59      * There is nothing to write, wait until a real terminal
  60      * is plugged into the console.
  61      */
  62
  63     // /* Stop here if the console is paused */
  64     // if (Console->UnpauseEvent != NULL) return STATUS_PENDING;
  65
  66     return STATUS_PENDING;
  67 }
  68
  69 /************ Line discipline ***************/
  70
  71
  72
  73 static VOID NTAPI
  74 DummyDrawRegion(IN OUT PTERMINAL This,
  75                 SMALL_RECT* Region)
  76 {
  77 }
  78
  79 static BOOL NTAPI
  80 DummySetCursorInfo(IN OUT PTERMINAL This,
  81                    PCONSOLE_SCREEN_BUFFER ScreenBuffer)
  82 {
  83     return TRUE;
  84 }
  85
  86 static BOOL NTAPI
  87 DummySetScreenInfo(IN OUT PTERMINAL This,
  88                    PCONSOLE_SCREEN_BUFFER ScreenBuffer,
  89                    SHORT OldCursorX,
  90                    SHORT OldCursorY)
  91 {
  92     return TRUE;
  93 }
  94
  95 static VOID NTAPI
  96 DummyResizeTerminal(IN OUT PTERMINAL This)
  97 {
  98 }
  99
 100 static VOID NTAPI
 101 DummySetActiveScreenBuffer(IN OUT PTERMINAL This)
 102 {
 103 }
 104
 105 static VOID NTAPI
 106 DummyReleaseScreenBuffer(IN OUT PTERMINAL This,
 107                          IN PCONSOLE_SCREEN_BUFFER ScreenBuffer)
 108 {
 109 }
 110
 111 static VOID NTAPI
 112 DummyGetLargestConsoleWindowSize(IN OUT PTERMINAL This,
 113                                  PCOORD pSize)
 114 {
 115 }
 116
 117 static BOOL NTAPI
 118 DummySetPalette(IN OUT PTERMINAL This,
 119                 HPALETTE PaletteHandle,
 120                 UINT PaletteUsage)
 121 {
 122     return TRUE;
 123 }
 124
 125 static INT NTAPI
 126 DummyShowMouseCursor(IN OUT PTERMINAL This,
 127                      BOOL Show)
 128 {
 129     return 0;
 130 }
 131
 132 static TERMINAL_VTBL DummyVtbl =
 133 {
 134     DummyInitTerminal,
 135     DummyDeinitTerminal,
 136
 137     DummyReadStream,
 138     DummyWriteStream,
 139
 140     DummyDrawRegion,
 141     DummySetCursorInfo,
 142     DummySetScreenInfo,
 143     DummyResizeTerminal,
 144     DummySetActiveScreenBuffer,
 145     DummyReleaseScreenBuffer,
 146     DummyGetLargestConsoleWindowSize,
 147     DummySetPalette,
 148     DummyShowMouseCursor,
 149 };
 150
 151 VOID
 152 ResetTerminal(IN PCONSOLE Console)
 153 {
 154     if (!Console) return;
 155
 156     /* Reinitialize the terminal interface */
 157     RtlZeroMemory(&Console->TermIFace, sizeof(Console->TermIFace));
 158     Console->TermIFace.Vtbl = &DummyVtbl;
 159 }
 160
 161 /* EOF */