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153 lines
3.8 KiB
C++
153 lines
3.8 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//=============================================================================//
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//------------------------------------------------------------------------------
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// Redirect.cpp : implementation file
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//
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// Creates a child process that runs a user-specified command and redirects its
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// standard output and standard error to a CEdit control.
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//
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// Written by Matt Brunk (brunk@gorge.net)
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// Copyright (C) 1999 Matt Brunk
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// All rights reserved.
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//
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// This code may be used in compiled form in any way. This file may be
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// distributed by any means providing it is not sold for profit without
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// the written consent of the author, and providing that this notice and the
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// author's name is included in the distribution. If the compiled form of the
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// source code in this file is used in a commercial application, an e-mail to
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// the author would be appreciated.
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//
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// Thanks to Dima Shamroni (dima@abirnet.co.il) for providing the essential
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// code for this class.
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//
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// Thanks to Chris Maunder (chrismaunder@codeguru.com) for the PeekAndPump()
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// function (from his CProgressWnd class).
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//
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// Initial Release Feb 8, 1999
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//------------------------------------------------------------------------------
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#include "stdafx.h"
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#include <string.h>
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#include <string>
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#include "Redirect.h"
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const int BUF_SIZE = 8192;
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CRedirect::~CRedirect()
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{
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}
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void CRedirect::Run( LPCTSTR szCommand, CEdit *pEdit, LPCTSTR pszCurrentDirectory )
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{
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m_pEdit = pEdit;
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m_bStopped = false;
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if ( !Open( szCommand, pszCurrentDirectory ) )
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{
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AppendText("\nFAILED TO SPAWN PROCESS\n");
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return;
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}
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for (;;)
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{
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//------------------------------------------------------------------
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// If the child process has completed, break out.
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//------------------------------------------------------------------
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if ( !m_hThread || MsgWaitForMultipleObjects( 1, &m_hThread, FALSE, 20, QS_ALLINPUT) == WAIT_OBJECT_0 )
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{
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break;
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}
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//------------------------------------------------------------------
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// Peek and pump messages.
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//------------------------------------------------------------------
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PeekAndPump();
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//------------------------------------------------------------------
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// If the user cancelled the operation, terminate the process.
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//------------------------------------------------------------------
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if ( m_bStopped )
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{
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Close();
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}
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}
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}
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void CRedirect::PeekAndPump()
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{
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MSG Msg;
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while (::PeekMessage(&Msg, NULL, 0, 0, PM_NOREMOVE))
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{
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(void)AfxGetApp()->PumpMessage(); //lint !e1924 (warning about C-style cast)
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}
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}
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void CRedirect::Stop()
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{
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m_bStopped = true;
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}
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void CRedirect::AppendText(LPCTSTR Text)
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{
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char *pszCurrent = const_cast<char *>(Text);
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int Length;
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Length = m_pEdit->GetWindowTextLength();
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if ( Length + strlen(Text) > m_pEdit->GetLimitText() )
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m_pEdit->SetLimitText( m_pEdit->GetLimitText() * 2 );
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if ( *pszCurrent == '\n' )
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pszCurrent++;
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while ( pszCurrent && *pszCurrent )
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{
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char *pszLineEnd = strchr( pszCurrent, '\r' );
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if ( pszLineEnd )
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*pszLineEnd = 0;
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Length = m_pEdit->GetWindowTextLength();
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m_pEdit->SetSel(Length, Length);
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m_pEdit->ReplaceSel(pszCurrent);
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//OutputDebugString(pszCurrent);
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if ( pszLineEnd )
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{
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Length = m_pEdit->GetWindowTextLength();
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m_pEdit->SetSel(Length, Length);
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m_pEdit->ReplaceSel("\r\n");
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//OutputDebugString("\r\n");
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}
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m_pEdit->LineScroll( m_pEdit->GetLineCount() );
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PeekAndPump();
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if ( pszLineEnd )
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{
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*pszLineEnd = '\r';
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pszCurrent = pszLineEnd + 1;
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if ( *pszCurrent == '\n' )
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pszCurrent++;
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}
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else
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pszCurrent = NULL;
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};
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}
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void CRedirect::WriteStdOut(LPCSTR pszOutput)
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{
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AppendText( pszOutput );
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}
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void CRedirect::WriteStdError(LPCSTR pszError)
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{
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AppendText( CString(pszError) );
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}
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