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 DummyChangeTitle(IN OUT PTERMINAL This)
 113 {
 114 }
 115
 116 static VOID NTAPI
 117 DummyGetLargestConsoleWindowSize(IN OUT PTERMINAL This,
 118                                  PCOORD pSize)
 119 {
 120 }
 121
 122 static BOOL NTAPI
 123 DummySetPalette(IN OUT PTERMINAL This,
 124                 HPALETTE PaletteHandle,
 125                 UINT PaletteUsage)
 126 {
 127     return TRUE;
 128 }
 129
 130 static INT NTAPI
 131 DummyShowMouseCursor(IN OUT PTERMINAL This,
 132                      BOOL Show)
 133 {
 134     return 0;
 135 }
 136
 137 static TERMINAL_VTBL DummyVtbl =
 138 {
 139     DummyInitTerminal,
 140     DummyDeinitTerminal,
 141
 142     DummyReadStream,
 143     DummyWriteStream,
 144
 145     DummyDrawRegion,
 146     DummySetCursorInfo,
 147     DummySetScreenInfo,
 148     DummyResizeTerminal,
 149     DummySetActiveScreenBuffer,
 150     DummyReleaseScreenBuffer,
 151     DummyChangeTitle,
 152     DummyGetLargestConsoleWindowSize,
 153     DummySetPalette,
 154     DummyShowMouseCursor,
 155 };
 156
 157 VOID
 158 ResetTerminal(IN PCONSOLE Console)
 159 {
 160     if (!Console) return;
 161
 162     /* Reinitialize the terminal interface */
 163     RtlZeroMemory(&Console->TermIFace, sizeof(Console->TermIFace));
 164     Console->TermIFace.Vtbl = &DummyVtbl;
 165 }
 166
 167 /* EOF */