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/* $Id: split-soapC.cpp $ */
/** @file
* Splits soapC.cpp and soapH-noinline.cpp into more manageable portions.
*/
/*
* Copyright (C) 2009-2023 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>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/types.h>
#include <iprt/path.h>
#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <limits.h>
static char *readfileIntoBuffer(const char *pszFile, size_t *pcbFile)
{
FILE *pFileIn = fopen(pszFile, "rb");
if (pFileIn)
{
int iRc2 = fseek(pFileIn, 0, SEEK_END);
long cbFileIn = ftell(pFileIn);
int iRc3 = fseek(pFileIn, 0, SEEK_SET);
if (iRc3 != -1 && iRc2 != -1 && cbFileIn >= 0)
{
char *pBuffer = (char *)malloc(cbFileIn + 1);
if (pBuffer)
{
size_t cbRead = fread(pBuffer, 1, cbFileIn, pFileIn);
if (cbRead == (size_t)cbFileIn)
{
pBuffer[cbFileIn] = '\0';
fclose(pFileIn);
*pcbFile = (size_t)cbFileIn;
return pBuffer;
}
fprintf(stderr, "split-soapC: Failed to read %ld bytes from input file.\n", cbFileIn);
free(pBuffer);
}
else
fprintf(stderr, "split-soapC: Failed to allocate %ld bytes.\n", cbFileIn);
}
else
fprintf(stderr, "split-soapC: Seek failure.\n");
fclose(pFileIn);
}
else
fprintf(stderr, "split-soapC: Cannot open file \"%s\" for reading.\n", pszFile);
return NULL;
}
int main(int argc, char *argv[])
{
/*
* Check argument count.
*/
if (argc != 4)
{
fprintf(stderr, "split-soapC: Must be started with exactly four arguments,\n"
"1) the input file, 2) the output filename prefix and\n"
"3) the number chunks to create.");
return RTEXITCODE_SYNTAX;
}
/*
* Number of chunks (argv[3]).
*/
char *pszEnd = NULL;
unsigned long cChunks = strtoul(argv[3], &pszEnd, 0);
if (cChunks == ULONG_MAX || cChunks == 0 || !argv[3] || *pszEnd)
{
fprintf(stderr, "split-soapC: Given argument \"%s\" is not a valid chunk count.\n", argv[3]);
return RTEXITCODE_SYNTAX;
}
/*
* Read the input file into a zero terminated memory buffer.
*/
size_t cbFileIn;
char *pszBuffer = readfileIntoBuffer(argv[1], &cbFileIn);
if (!pszBuffer)
return RTEXITCODE_FAILURE;
/*
* Split the file.
*/
RTEXITCODE rcExit = RTEXITCODE_SUCCESS;
FILE *pFileOut = NULL;
const char *pszLine = pszBuffer;
size_t cbChunk = cbFileIn / cChunks;
unsigned long cFiles = 0;
size_t cbLimit = 0;
size_t cbWritten = 0;
unsigned long cIfNesting = 0;
unsigned long cWarningNesting = 0;
unsigned long cBraceNesting = 0;
unsigned long cLinesSinceStaticMap = ~0UL / 2;
bool fJustZero = false;
do
{
if (!pFileOut)
{
/* construct output filename */
char szFilename[1024];
sprintf(szFilename, "%s%lu.cpp", argv[2], ++cFiles);
szFilename[sizeof(szFilename)-1] = '\0';
size_t offName = strlen(szFilename);
while (offName > 0 && !RTPATH_IS_SEP(szFilename[offName - 1]))
offName -= 1;
printf("info: %s\n", &szFilename[offName]);
/* create output file */
pFileOut = fopen(szFilename, "wb");
if (!pFileOut)
{
fprintf(stderr, "split-soapC: Failed to open file \"%s\" for writing\n", szFilename);
rcExit = RTEXITCODE_FAILURE;
break;
}
if (cFiles > 1)
fprintf(pFileOut, "#include \"soapH.h\"%s\n",
#ifdef RT_OS_WINDOWS
"\r"
#else
""
#endif
);
cbLimit += cbChunk;
cLinesSinceStaticMap = ~0UL / 2;
}
/* find begin of next line and print current line */
const char *pszNextLine = strchr(pszLine, '\n');
size_t cbLine;
if (pszNextLine)
{
pszNextLine++;
cbLine = pszNextLine - pszLine;
}
else
cbLine = strlen(pszLine);
if (fwrite(pszLine, 1, cbLine, pFileOut) != cbLine)
{
fprintf(stderr, "split-soapC: Failed to write to output file\n");
rcExit = RTEXITCODE_FAILURE;
break;
}
cbWritten += cbLine;
/* process nesting depth information */
if (!strncmp(pszLine, "#if", 3))
cIfNesting++;
else if (!strncmp(pszLine, "#endif", 6))
{
cIfNesting--;
if (!cBraceNesting && !cIfNesting)
fJustZero = true;
}
else if (!strncmp(pszLine, RT_STR_TUPLE("#pragma warning(push)")))
cWarningNesting++;
else if (!strncmp(pszLine, RT_STR_TUPLE("#pragma warning(pop)")))
cWarningNesting--;
else
{
for (const char *p = pszLine; p < pszLine + cbLine; p++)
{
if (*p == '{')
cBraceNesting++;
else if (*p == '}')
{
cBraceNesting--;
if (!cBraceNesting && !cIfNesting)
fJustZero = true;
}
}
}
/* look for static variables used for enum conversion. */
if (!strncmp(pszLine, "static const struct soap_code_map", sizeof("static const struct soap_code_map") - 1))
cLinesSinceStaticMap = 0;
else
cLinesSinceStaticMap++;
/* start a new output file if necessary and possible */
if ( cbWritten >= cbLimit
&& cIfNesting == 0
&& cWarningNesting == 0
&& fJustZero
&& cFiles < cChunks
&& cLinesSinceStaticMap > 150 /*hack!*/)
{
fclose(pFileOut);
pFileOut = NULL;
}
fJustZero = false;
pszLine = pszNextLine;
} while (pszLine);
printf("split-soapC: Created %lu files.\n", (unsigned long)cFiles);
free(pszBuffer);
if (pFileOut)
fclose(pFileOut);
return rcExit;
}
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