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/*
__ __ _
___\ \/ /_ __ __ _| |_
/ _ \\ /| '_ \ / _` | __|
| __// \| |_) | (_| | |_
\___/_/\_\ .__/ \__,_|\__|
|_| XML parser
Copyright (c) 2003-2006 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2005-2007 Steven Solie <steven@solie.ca>
Copyright (c) 2017-2023 Sebastian Pipping <sebastian@pipping.org>
Copyright (c) 2017 Rhodri James <rhodri@wildebeest.org.uk>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to permit
persons to whom the Software is furnished to do so, subject to the
following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <sys/stat.h>
#include <assert.h>
#include <stddef.h> // ptrdiff_t
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include "expat.h"
#ifdef XML_LARGE_SIZE
# define XML_FMT_INT_MOD "ll"
#else
# define XML_FMT_INT_MOD "l"
#endif
#ifdef XML_UNICODE_WCHAR_T
# define XML_FMT_STR "ls"
#else
# define XML_FMT_STR "s"
#endif
static void
usage(const char *prog, int rc) {
fprintf(stderr, "usage: %s [-n] filename bufferSize nr_of_loops\n", prog);
exit(rc);
}
int
main(int argc, char *argv[]) {
XML_Parser parser;
char *XMLBuf, *XMLBufEnd, *XMLBufPtr;
FILE *fd;
struct stat fileAttr;
int nrOfLoops, bufferSize, i, isFinal;
size_t fileSize;
int j = 0, ns = 0;
clock_t tstart, tend;
double cpuTime = 0.0;
if (argc > 1) {
if (argv[1][0] == '-') {
if (argv[1][1] == 'n' && argv[1][2] == '\0') {
ns = 1;
j = 1;
} else
usage(argv[0], 1);
}
}
if (argc != j + 4)
usage(argv[0], 1);
if (stat(argv[j + 1], &fileAttr) != 0) {
fprintf(stderr, "could not access file '%s'\n", argv[j + 1]);
return 2;
}
fd = fopen(argv[j + 1], "r");
if (! fd) {
fprintf(stderr, "could not open file '%s'\n", argv[j + 1]);
exit(2);
}
bufferSize = atoi(argv[j + 2]);
nrOfLoops = atoi(argv[j + 3]);
if (bufferSize <= 0 || nrOfLoops <= 0) {
fprintf(stderr, "buffer size and nr of loops must be greater than zero.\n");
exit(3);
}
XMLBuf = malloc(fileAttr.st_size);
fileSize = fread(XMLBuf, sizeof(char), fileAttr.st_size, fd);
fclose(fd);
if (ns)
parser = XML_ParserCreateNS(NULL, '!');
else
parser = XML_ParserCreate(NULL);
i = 0;
XMLBufEnd = XMLBuf + fileSize;
while (i < nrOfLoops) {
XMLBufPtr = XMLBuf;
isFinal = 0;
tstart = clock();
do {
ptrdiff_t parseBufferSize = XMLBufEnd - XMLBufPtr;
if (parseBufferSize <= (ptrdiff_t)bufferSize)
isFinal = 1;
else
parseBufferSize = bufferSize;
assert(parseBufferSize <= (ptrdiff_t)bufferSize);
if (! XML_Parse(parser, XMLBufPtr, (int)parseBufferSize, isFinal)) {
fprintf(stderr,
"error '%" XML_FMT_STR "' at line %" XML_FMT_INT_MOD
"u character %" XML_FMT_INT_MOD "u\n",
XML_ErrorString(XML_GetErrorCode(parser)),
XML_GetCurrentLineNumber(parser),
XML_GetCurrentColumnNumber(parser));
free(XMLBuf);
XML_ParserFree(parser);
exit(4);
}
XMLBufPtr += bufferSize;
} while (! isFinal);
tend = clock();
cpuTime += ((double)(tend - tstart)) / CLOCKS_PER_SEC;
XML_ParserReset(parser, NULL);
i++;
}
XML_ParserFree(parser);
free(XMLBuf);
printf("%d loops, with buffer size %d. Average time per loop: %f\n",
nrOfLoops, bufferSize, cpuTime / (double)nrOfLoops);
return 0;
}
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