1 /* 2 __ __ _ 3 ___\ \/ /_ __ __ _| |_ 4 / _ \\ /| '_ \ / _` | __| 5 | __// \| |_) | (_| | |_ 6 \___/_/\_\ .__/ \__,_|\__| 7 |_| XML parser 8 9 Copyright (c) 2003-2006 Karl Waclawek <karl@waclawek.net> 10 Copyright (c) 2005-2007 Steven Solie <steven@solie.ca> 11 Copyright (c) 2017-2025 Sebastian Pipping <sebastian@pipping.org> 12 Copyright (c) 2017 Rhodri James <rhodri@wildebeest.org.uk> 13 Licensed under the MIT license: 14 15 Permission is hereby granted, free of charge, to any person obtaining 16 a copy of this software and associated documentation files (the 17 "Software"), to deal in the Software without restriction, including 18 without limitation the rights to use, copy, modify, merge, publish, 19 distribute, sublicense, and/or sell copies of the Software, and to permit 20 persons to whom the Software is furnished to do so, subject to the 21 following conditions: 22 23 The above copyright notice and this permission notice shall be included 24 in all copies or substantial portions of the Software. 25 26 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN 29 NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 30 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 31 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 32 USE OR OTHER DEALINGS IN THE SOFTWARE. 33 */ 34 35 #define _POSIX_C_SOURCE 1 // fdopen 36 37 #if defined(_MSC_VER) 38 # include <io.h> // _open, _close 39 #else 40 # include <unistd.h> // close 41 #endif 42 43 #include <fcntl.h> // open 44 #include <sys/stat.h> 45 #include <assert.h> 46 #include <stddef.h> // ptrdiff_t 47 #include <stdio.h> 48 #include <time.h> 49 #include "expat.h" 50 51 #ifdef XML_LARGE_SIZE 52 # define XML_FMT_INT_MOD "ll" 53 #else 54 # define XML_FMT_INT_MOD "l" 55 #endif 56 57 #ifdef XML_UNICODE_WCHAR_T 58 # define XML_FMT_STR "ls" 59 #else 60 # define XML_FMT_STR "s" 61 #endif 62 63 static int 64 usage(const char *prog, int rc) { 65 fprintf(stderr, "usage: %s [-n] filename bufferSize nr_of_loops\n", prog); 66 return rc; 67 } 68 69 int 70 main(int argc, char *argv[]) { 71 XML_Parser parser; 72 char *XMLBuf, *XMLBufEnd, *XMLBufPtr; 73 int fd; 74 FILE *file; 75 struct stat fileAttr; 76 int nrOfLoops, bufferSize, i, isFinal; 77 size_t fileSize; 78 int j = 0, ns = 0; 79 clock_t tstart, tend; 80 double cpuTime = 0.0; 81 82 if (argc > 1) { 83 if (argv[1][0] == '-') { 84 if (argv[1][1] == 'n' && argv[1][2] == '\0') { 85 ns = 1; 86 j = 1; 87 } else 88 return usage(argv[0], 1); 89 } 90 } 91 92 if (argc != j + 4) 93 return usage(argv[0], 1); 94 95 fd = open(argv[j + 1], O_RDONLY); 96 if (fd == -1) { 97 fprintf(stderr, "could not open file '%s'\n", argv[j + 1]); 98 return 2; 99 } 100 101 if (fstat(fd, &fileAttr) != 0) { 102 close(fd); 103 fprintf(stderr, "could not fstat file '%s'\n", argv[j + 1]); 104 return 2; 105 } 106 107 file = fdopen(fd, "r"); 108 if (! file) { 109 close(fd); 110 fprintf(stderr, "could not fdopen file '%s'\n", argv[j + 1]); 111 return 2; 112 } 113 114 bufferSize = atoi(argv[j + 2]); 115 nrOfLoops = atoi(argv[j + 3]); 116 if (bufferSize <= 0 || nrOfLoops <= 0) { 117 fclose(file); // NOTE: this closes fd as well 118 fprintf(stderr, "buffer size and nr of loops must be greater than zero.\n"); 119 return 3; 120 } 121 122 XMLBuf = malloc(fileAttr.st_size); 123 if (XMLBuf == NULL) { 124 fclose(file); // NOTE: this closes fd as well 125 fprintf(stderr, "ouf of memory.\n"); 126 return 5; 127 } 128 fileSize = fread(XMLBuf, sizeof(char), fileAttr.st_size, file); 129 fclose(file); // NOTE: this closes fd as well 130 131 if (ns) 132 parser = XML_ParserCreateNS(NULL, '!'); 133 else 134 parser = XML_ParserCreate(NULL); 135 136 i = 0; 137 XMLBufEnd = XMLBuf + fileSize; 138 while (i < nrOfLoops) { 139 XMLBufPtr = XMLBuf; 140 isFinal = 0; 141 tstart = clock(); 142 do { 143 ptrdiff_t parseBufferSize = XMLBufEnd - XMLBufPtr; 144 if (parseBufferSize <= (ptrdiff_t)bufferSize) 145 isFinal = 1; 146 else 147 parseBufferSize = bufferSize; 148 assert(parseBufferSize <= (ptrdiff_t)bufferSize); 149 if (! XML_Parse(parser, XMLBufPtr, (int)parseBufferSize, isFinal)) { 150 fprintf(stderr, 151 "error '%" XML_FMT_STR "' at line %" XML_FMT_INT_MOD 152 "u character %" XML_FMT_INT_MOD "u\n", 153 XML_ErrorString(XML_GetErrorCode(parser)), 154 XML_GetCurrentLineNumber(parser), 155 XML_GetCurrentColumnNumber(parser)); 156 free(XMLBuf); 157 XML_ParserFree(parser); 158 return 4; 159 } 160 XMLBufPtr += bufferSize; 161 } while (! isFinal); 162 tend = clock(); 163 cpuTime += ((double)(tend - tstart)) / CLOCKS_PER_SEC; 164 XML_ParserReset(parser, NULL); 165 i++; 166 } 167 168 XML_ParserFree(parser); 169 free(XMLBuf); 170 171 printf("%d loops, with buffer size %d. Average time per loop: %f\n", 172 nrOfLoops, bufferSize, cpuTime / (double)nrOfLoops); 173 return 0; 174 } 175