minix/external/mit/expat/dist/tests/benchmark/benchmark.c

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#include <sys/stat.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include "expat.h"
#if defined(__amigaos__) && defined(__USE_INLINE__)
#include <proto/expat.h>
#endif
#ifdef XML_LARGE_SIZE
#define XML_FMT_INT_MOD "ll"
#else
#define XML_FMT_INT_MOD "l"
#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, fileSize, i, isFinal;
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 {
int parseBufferSize = XMLBufEnd - XMLBufPtr;
if (parseBufferSize <= bufferSize)
isFinal = 1;
else
parseBufferSize = bufferSize;
if (!XML_Parse (parser, XMLBufPtr, parseBufferSize, isFinal)) {
fprintf (stderr, "error '%s' 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;
}