diff options
Diffstat (limited to 'src/VBox/Runtime/r3/win/nocrt-streams-win.cpp')
| -rw-r--r-- | src/VBox/Runtime/r3/win/nocrt-streams-win.cpp | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/win/nocrt-streams-win.cpp b/src/VBox/Runtime/r3/win/nocrt-streams-win.cpp new file mode 100644 index 00000000..269c9bd2 --- /dev/null +++ b/src/VBox/Runtime/r3/win/nocrt-streams-win.cpp @@ -0,0 +1,223 @@ +/* $Id: nocrt-streams-win.cpp $ */ +/** @file + * IPRT - No-CRT - minimal stream implementation + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "internal/iprt.h" +#include <iprt/stream.h> + +#include <iprt/nt/nt-and-windows.h> + +#include <iprt/ctype.h> +#include <iprt/file.h> +#include <iprt/string.h> + + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +typedef struct PRINTFBUF +{ + HANDLE hNative; + size_t offBuf; + char szBuf[128]; +} PRINTFBUF; + +struct RTSTREAM +{ + int iStream; + HANDLE hNative; + RTFILE hFile; +}; + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +#define MAKE_SURE_WE_HAVE_HFILE_RETURN(a_pStream) do { \ + if ((a_pStream)->hFile != NIL_RTFILE) \ + break; \ + int rc = RTFileFromNative(&(a_pStream)->hFile, (uintptr_t)(a_pStream)->hNative); \ + AssertRCReturn(rc, rc); \ + } while (0) + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +RTSTREAM g_aStdStreams[3] = +{ + { 0, NULL, NIL_RTFILE }, + { 1, NULL, NIL_RTFILE }, + { 2, NULL, NIL_RTFILE }, +}; + +RTSTREAM *g_pStdIn = &g_aStdStreams[0]; +RTSTREAM *g_pStdOut = &g_aStdStreams[1]; +RTSTREAM *g_pStdErr = &g_aStdStreams[2]; + + + +DECLHIDDEN(void) InitStdHandles(PRTL_USER_PROCESS_PARAMETERS pParams) +{ + if (pParams) + { + g_pStdIn->hNative = pParams->StandardInput; + g_pStdOut->hNative = pParams->StandardOutput; + g_pStdErr->hNative = pParams->StandardError; + } +} + + +static void FlushPrintfBuffer(PRINTFBUF *pBuf) +{ + if (pBuf->offBuf) + { + DWORD cbWritten = 0; + WriteFile(pBuf->hNative, pBuf->szBuf, (DWORD)pBuf->offBuf, &cbWritten, NULL); + pBuf->offBuf = 0; + pBuf->szBuf[0] = '\0'; + } +} + + +/** @callback_method_impl{FNRTSTROUTPUT} */ +static DECLCALLBACK(size_t) MyPrintfOutputter(void *pvArg, const char *pachChars, size_t cbChars) +{ + PRINTFBUF *pBuf = (PRINTFBUF *)pvArg; + if (cbChars != 0) + { + size_t offSrc = 0; + while (offSrc < cbChars) + { + size_t cbLeft = sizeof(pBuf->szBuf) - pBuf->offBuf - 1; + if (cbLeft > 0) + { + size_t cbToCopy = RT_MIN(cbChars - offSrc, cbLeft); + memcpy(&pBuf->szBuf[pBuf->offBuf], &pachChars[offSrc], cbToCopy); + pBuf->offBuf += cbToCopy; + pBuf->szBuf[pBuf->offBuf] = '\0'; + if (cbLeft > cbToCopy) + break; + offSrc += cbToCopy; + } + FlushPrintfBuffer(pBuf); + } + } + else /* Special zero byte write at the end of the formatting. */ + FlushPrintfBuffer(pBuf); + return cbChars; +} + + +RTR3DECL(int) RTStrmPrintfV(PRTSTREAM pStream, const char *pszFormat, va_list args) +{ + PRINTFBUF Buf; + Buf.hNative = pStream->hNative; + Buf.offBuf = 0; + Buf.szBuf[0] = '\0'; + + return (int)RTStrFormatV(MyPrintfOutputter, &Buf, NULL, NULL, pszFormat, args); +} + + +RTR3DECL(int) RTStrmPrintf(PRTSTREAM pStream, const char *pszFormat, ...) +{ + va_list args; + va_start(args, pszFormat); + int rc = RTStrmPrintfV(pStream, pszFormat, args); + va_end(args); + return rc; +} + + +RTR3DECL(int) RTPrintfV(const char *pszFormat, va_list va) +{ + PRINTFBUF Buf; + Buf.hNative = g_pStdOut->hNative; + Buf.offBuf = 0; + Buf.szBuf[0] = '\0'; + + return (int)RTStrFormatV(MyPrintfOutputter, &Buf, NULL, NULL, pszFormat, va); +} + + +RTR3DECL(int) RTPrintf(const char *pszFormat, ...) +{ + va_list va; + va_start(va, pszFormat); + int rc = RTPrintfV(pszFormat, va); + va_end(va); + return rc; +} + +#ifndef IPRT_MINIMAL_STREAM + +# if 0 +RTR3DECL(int) RTStrmReadEx(PRTSTREAM pStream, void *pvBuf, size_t cbToRead, size_t *pcbRead) +{ + MAKE_SURE_WE_HAVE_HFILE_RETURN(pStream); + return RTFileRead(pStream->hFile, pvBuf, cbToRead, pcbRead); +} +# endif + + +RTR3DECL(int) RTStrmWriteEx(PRTSTREAM pStream, const void *pvBuf, size_t cbToWrite, size_t *pcbWritten) +{ + MAKE_SURE_WE_HAVE_HFILE_RETURN(pStream); + return RTFileWrite(pStream->hFile, pvBuf, cbToWrite, pcbWritten); +} + + +RTR3DECL(int) RTStrmFlush(PRTSTREAM pStream) +{ + MAKE_SURE_WE_HAVE_HFILE_RETURN(pStream); + return RTFileFlush(pStream->hFile); +} + + +RTR3DECL(int) RTStrmSetMode(PRTSTREAM pStream, int fBinary, int fCurrentCodeSet) +{ + AssertReturn(fBinary != (int)false, VERR_NOT_IMPLEMENTED); + AssertReturn(fCurrentCodeSet <= (int)false, VERR_NOT_IMPLEMENTED); + RT_NOREF(pStream); + return VINF_SUCCESS; +} + +#endif |