DWORD RequestProc (DWORD dwNichts)
{
int *pBuffer;
DWORD dwRet;
HANDLE heventWait[2];
int iBeginLine, iEndLine;
heventWait[0] = heventParentSend;
heventWait[1] = heventDone;
while (1)
{
dwRet = WaitForMultipleObjects (2, heventWait, false, INFINITE);
// heventDone fired, so we're exiting.
if (dwRet == WAIT_OBJECT_0 + 1)
break;
pBuffer = (int *) GetMappedBuffer (hfileBuffer);
// hfileBuffer is invalid. Just leave.
if (!pBuffer)
{
Con_Print("Invalid hfileBuffer\n");
break;
}
switch (pBuffer[0])
{
case CCOM_WRITE_TEXT:
// Param1 : Text
pBuffer[0] = WriteText ((LPCTSTR) (pBuffer + 1));
break;
case CCOM_GET_TEXT:
// Param1 : Begin line
// Param2 : End line
iBeginLine = pBuffer[1];
iEndLine = pBuffer[2];
pBuffer[0] = ReadText ((LPTSTR) (pBuffer + 1), iBeginLine,
iEndLine);
break;
case CCOM_GET_SCR_LINES:
// No params
pBuffer[0] = GetScreenBufferLines (&pBuffer[1]);
break;
case CCOM_SET_SCR_LINES:
// Param1 : Number of lines
pBuffer[0] = SetScreenBufferLines (pBuffer[1]);
break;
}
ReleaseMappedBuffer (pBuffer);
SetEvent (heventChildSend);
}
return 0;
}
/*
==============
OnBtnExecute
User wants to issue commands
==============
*/
void CServerCtrlDlg::OnBtnExecute( void )
{
if ( !m_hSend || !m_hMappedFile )
return;
// Get commands
CEdit *pEdit = (CEdit *)GetDlgItem( IDC_EDIT_COMMANDS );
if ( pEdit )
{
CString cmds;
pEdit->GetWindowText( cmds );
// Get buffer
char *sz = (char *)GetMappedBuffer( m_hMappedFile );
if ( sz )
{
// Write command int32 token
*(int *)&sz[ 0 ] = ENGINE_ISSUE_COMMANDS;
// Write rest of line, including a return character ( necessary? )
sprintf( sz + sizeof( int ), "%s\n", (char *)(LPCSTR)cmds );
// Release the buffer
ReleaseMappedBuffer( sz );
// Store off what we are expecting in return buffer
m_nPendingRequest = ENGINE_ISSUE_COMMANDS;
// Signal HLDS to check for requests
SetEvent( m_hSend );
}
}
}
/*
==============
RefreshText
==============
*/
void CServerCtrlDlg::RefreshText( void )
{
if ( !m_hSend || !m_hMappedFile )
return;
int i = 0;
char *sz = (char *)GetMappedBuffer( m_hMappedFile );
if ( sz )
{
// Command token
*(int *)&sz[ i ] = ENGINE_RETRIEVE_CONSOLE_CONTENTS;
i += sizeof( int );
// Start at line 0
*(int *)&sz[ i ] = 0;
i += sizeof( int );
// End at line 23 ( assumes 24 line console )
*(int *)&sz[ i ] = 23;
i += sizeof( int );
// Done creating commands
ReleaseMappedBuffer( sz );
// Store off pending state info
m_nPendingRequest = ENGINE_RETRIEVE_CONSOLE_CONTENTS;
m_nPendingLines = 23 - 0 + 1;
// Signal HLDS that we have written commands to the buffer
SetEvent( m_hSend );
}
}
static unsigned _stdcall RequestProc( void *arg )
{
int *pBuffer;
DWORD dwRet;
HANDLE heventWait[2];
int iBeginLine, iEndLine;
heventWait[0] = heventParentSend;
heventWait[1] = heventDone;
for(;; )
{
dwRet = WaitForMultipleObjects( 2, heventWait, FALSE, INFINITE );
// heventDone fired, so we're exiting.
if( dwRet == WAIT_OBJECT_0 + 1 )
break;
pBuffer = (int *) GetMappedBuffer( hfileBuffer );
// hfileBuffer is invalid. Just leave.
if( !pBuffer )
{
printf( "Invalid hfileBuffer\n" );
break;
}
switch( pBuffer[0] )
{
case CCOM_WRITE_TEXT:
// Param1 : Text
pBuffer[0] = WriteText( (LPCTSTR) ( pBuffer + 1 ) );
break;
case CCOM_GET_TEXT:
// Param1 : Begin line
// Param2 : End line
iBeginLine = pBuffer[1];
iEndLine = pBuffer[2];
pBuffer[0] = ReadText( (LPTSTR) ( pBuffer + 1 ), iBeginLine,
iEndLine );
break;
case CCOM_GET_SCR_LINES:
// No params
pBuffer[0] = GetScreenBufferLines( &pBuffer[1] );
break;
case CCOM_SET_SCR_LINES:
// Param1 : Number of lines
pBuffer[0] = SetScreenBufferLines( pBuffer[1] );
break;
}
ReleaseMappedBuffer( pBuffer );
SetEvent( heventChildSend );
}
_endthreadex( 0 );
arg = NULL; // wsw : aiwa : shut up compiler
return 0;
}
/*
=====================
ProcessMappedResponse
The engine has signaled the receive event, see what the results of the command we issued are.
=====================
*/
int CServerCtrlDlg::ProcessMappedResponse( void )
{
char *psz;
int *pBuffer;
int i;
char line[ 1024 ];
char szwindow[ 4096 ];
CEdit *pEdit;
pBuffer = (int *)GetMappedBuffer ( m_hMappedFile );
// buffer is invalid. Just leave.
if ( !pBuffer )
{
return 0;
}
// Will be non-zero upon success
if ( pBuffer[0] )
{
switch ( m_nPendingRequest )
{
case ENGINE_RETRIEVE_CONSOLE_CONTENTS:
// Write text lines to console area
pEdit = (CEdit *)GetDlgItem( IDC_EDIT_CONSOLE );
if ( pEdit )
{
szwindow[ 0 ] = '\0';
for ( i = 0; i < m_nPendingLines; i++ )
{
// Skip first int32 result code
// Lines are assumed to be 80 characters wide
psz = (char *)( pBuffer + 1 ) + 80 * i;
strncpy( line, psz, 80 );
line[ 79 ] = '\0';
strcat( szwindow, line );
if ( i != ( m_nPendingLines ) - 1 )
{
strcat( szwindow, "\r\n" );
}
}
// Send to display control
pEdit->SetWindowText( szwindow );
}
break;
default:
break;
}
}
// Reset results stuff
m_nPendingRequest = 0;
m_nPendingLines = 0;
// Free up buffer pointer
ReleaseMappedBuffer( pBuffer );
return 1;
}
