| 1 | /* $Id: split-soapC.cpp 98297 2023-01-25 01:59:25Z vboxsync $ */
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| 2 | /** @file
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| 3 | * Splits soapC.cpp and soapH-noinline.cpp into more manageable portions.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2009-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 |
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| 29 | /*********************************************************************************************************************************
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| 30 | * Header Files *
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| 31 | *********************************************************************************************************************************/
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| 32 | #include <iprt/types.h>
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| 33 | #include <iprt/path.h>
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| 34 | #include <sys/types.h>
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| 35 | #include <stdio.h>
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| 36 | #include <string.h>
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| 37 | #include <stdlib.h>
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| 38 | #include <limits.h>
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| 39 |
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| 40 |
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| 41 | static char *readfileIntoBuffer(const char *pszFile, size_t *pcbFile)
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| 42 | {
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| 43 | FILE *pFileIn = fopen(pszFile, "rb");
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| 44 | if (pFileIn)
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| 45 | {
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| 46 | int iRc2 = fseek(pFileIn, 0, SEEK_END);
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| 47 | long cbFileIn = ftell(pFileIn);
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| 48 | int iRc3 = fseek(pFileIn, 0, SEEK_SET);
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| 49 | if (iRc3 != -1 && iRc2 != -1 && cbFileIn >= 0)
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| 50 | {
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| 51 | char *pBuffer = (char *)malloc(cbFileIn + 1);
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| 52 | if (pBuffer)
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| 53 | {
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| 54 | size_t cbRead = fread(pBuffer, 1, cbFileIn, pFileIn);
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| 55 | if (cbRead == (size_t)cbFileIn)
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| 56 | {
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| 57 | pBuffer[cbFileIn] = '\0';
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| 58 | fclose(pFileIn);
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| 59 | *pcbFile = (size_t)cbFileIn;
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| 60 | return pBuffer;
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| 61 | }
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| 62 |
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| 63 | fprintf(stderr, "split-soapC: Failed to read %ld bytes from input file.\n", cbFileIn);
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| 64 | free(pBuffer);
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| 65 | }
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| 66 | else
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| 67 | fprintf(stderr, "split-soapC: Failed to allocate %ld bytes.\n", cbFileIn);
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| 68 | }
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| 69 | else
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| 70 | fprintf(stderr, "split-soapC: Seek failure.\n");
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| 71 | fclose(pFileIn);
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| 72 | }
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| 73 | else
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| 74 | fprintf(stderr, "split-soapC: Cannot open file \"%s\" for reading.\n", pszFile);
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| 75 | return NULL;
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| 76 | }
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| 77 |
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| 78 |
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| 79 | int main(int argc, char *argv[])
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| 80 | {
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| 81 | /*
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| 82 | * Check argument count.
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| 83 | */
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| 84 | if (argc != 4)
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| 85 | {
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| 86 | fprintf(stderr, "split-soapC: Must be started with exactly four arguments,\n"
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| 87 | "1) the input file, 2) the output filename prefix and\n"
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| 88 | "3) the number chunks to create.");
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| 89 | return RTEXITCODE_SYNTAX;
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| 90 | }
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| 91 |
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| 92 | /*
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| 93 | * Number of chunks (argv[3]).
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| 94 | */
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| 95 | char *pszEnd = NULL;
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| 96 | unsigned long cChunks = strtoul(argv[3], &pszEnd, 0);
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| 97 | if (cChunks == ULONG_MAX || cChunks == 0 || !argv[3] || *pszEnd)
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| 98 | {
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| 99 | fprintf(stderr, "split-soapC: Given argument \"%s\" is not a valid chunk count.\n", argv[3]);
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| 100 | return RTEXITCODE_SYNTAX;
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| 101 | }
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| 102 |
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| 103 | /*
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| 104 | * Read the input file into a zero terminated memory buffer.
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| 105 | */
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| 106 | size_t cbFileIn;
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| 107 | char *pszBuffer = readfileIntoBuffer(argv[1], &cbFileIn);
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| 108 | if (!pszBuffer)
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| 109 | return RTEXITCODE_FAILURE;
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| 110 |
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| 111 | /*
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| 112 | * Split the file.
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| 113 | */
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| 114 | RTEXITCODE rcExit = RTEXITCODE_SUCCESS;
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| 115 | FILE *pFileOut = NULL;
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| 116 | const char *pszLine = pszBuffer;
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| 117 | size_t cbChunk = cbFileIn / cChunks;
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| 118 | unsigned long cFiles = 0;
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| 119 | size_t cbLimit = 0;
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| 120 | size_t cbWritten = 0;
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| 121 | unsigned long cIfNesting = 0;
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| 122 | unsigned long cWarningNesting = 0;
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| 123 | unsigned long cBraceNesting = 0;
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| 124 | unsigned long cLinesSinceStaticMap = ~0UL / 2;
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| 125 | bool fJustZero = false;
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| 126 |
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| 127 | do
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| 128 | {
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| 129 | if (!pFileOut)
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| 130 | {
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| 131 | /* construct output filename */
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| 132 | char szFilename[1024];
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| 133 | sprintf(szFilename, "%s%lu.cpp", argv[2], ++cFiles);
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| 134 | szFilename[sizeof(szFilename)-1] = '\0';
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| 135 |
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| 136 | size_t offName = strlen(szFilename);
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| 137 | while (offName > 0 && !RTPATH_IS_SEP(szFilename[offName - 1]))
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| 138 | offName -= 1;
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| 139 | printf("info: %s\n", &szFilename[offName]);
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| 140 |
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| 141 | /* create output file */
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| 142 | pFileOut = fopen(szFilename, "wb");
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| 143 | if (!pFileOut)
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| 144 | {
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| 145 | fprintf(stderr, "split-soapC: Failed to open file \"%s\" for writing\n", szFilename);
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| 146 | rcExit = RTEXITCODE_FAILURE;
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| 147 | break;
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| 148 | }
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| 149 | if (cFiles > 1)
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| 150 | fprintf(pFileOut, "#include \"soapH.h\"%s\n",
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| 151 | #ifdef RT_OS_WINDOWS
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| 152 | "\r"
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| 153 | #else
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| 154 | ""
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| 155 | #endif
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| 156 | );
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| 157 | cbLimit += cbChunk;
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| 158 | cLinesSinceStaticMap = ~0UL / 2;
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| 159 | }
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| 160 |
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| 161 | /* find begin of next line and print current line */
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| 162 | const char *pszNextLine = strchr(pszLine, '\n');
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| 163 | size_t cbLine;
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| 164 | if (pszNextLine)
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| 165 | {
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| 166 | pszNextLine++;
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| 167 | cbLine = pszNextLine - pszLine;
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| 168 | }
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| 169 | else
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| 170 | cbLine = strlen(pszLine);
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| 171 | if (fwrite(pszLine, 1, cbLine, pFileOut) != cbLine)
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| 172 | {
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| 173 | fprintf(stderr, "split-soapC: Failed to write to output file\n");
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| 174 | rcExit = RTEXITCODE_FAILURE;
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| 175 | break;
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| 176 | }
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| 177 | cbWritten += cbLine;
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| 178 |
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| 179 | /* process nesting depth information */
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| 180 | if (!strncmp(pszLine, "#if", 3))
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| 181 | cIfNesting++;
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| 182 | else if (!strncmp(pszLine, "#endif", 6))
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| 183 | {
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| 184 | cIfNesting--;
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| 185 | if (!cBraceNesting && !cIfNesting)
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| 186 | fJustZero = true;
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| 187 | }
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| 188 | else if (!strncmp(pszLine, RT_STR_TUPLE("#pragma warning(push)")))
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| 189 | cWarningNesting++;
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| 190 | else if (!strncmp(pszLine, RT_STR_TUPLE("#pragma warning(pop)")))
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| 191 | cWarningNesting--;
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| 192 | else
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| 193 | {
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| 194 | for (const char *p = pszLine; p < pszLine + cbLine; p++)
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| 195 | {
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| 196 | if (*p == '{')
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| 197 | cBraceNesting++;
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| 198 | else if (*p == '}')
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| 199 | {
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| 200 | cBraceNesting--;
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| 201 | if (!cBraceNesting && !cIfNesting)
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| 202 | fJustZero = true;
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| 203 | }
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| 204 | }
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| 205 | }
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| 206 |
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| 207 | /* look for static variables used for enum conversion. */
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| 208 | if (!strncmp(pszLine, "static const struct soap_code_map", sizeof("static const struct soap_code_map") - 1))
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| 209 | cLinesSinceStaticMap = 0;
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| 210 | else
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| 211 | cLinesSinceStaticMap++;
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| 212 |
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| 213 | /* start a new output file if necessary and possible */
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| 214 | if ( cbWritten >= cbLimit
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| 215 | && cIfNesting == 0
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| 216 | && cWarningNesting == 0
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| 217 | && fJustZero
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| 218 | && cFiles < cChunks
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| 219 | && cLinesSinceStaticMap > 150 /*hack!*/)
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| 220 | {
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| 221 | fclose(pFileOut);
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| 222 | pFileOut = NULL;
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| 223 | }
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| 224 |
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| 225 | fJustZero = false;
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| 226 | pszLine = pszNextLine;
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| 227 | } while (pszLine);
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| 228 |
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| 229 | printf("split-soapC: Created %lu files.\n", (unsigned long)cFiles);
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| 230 |
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| 231 | free(pszBuffer);
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| 232 | if (pFileOut)
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| 233 | fclose(pFileOut);
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| 234 |
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| 235 | return rcExit;
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| 236 | }
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