1 /*
2                             __  __            _
3                          ___\ \/ /_ __   __ _| |_
4                         / _ \\  /| '_ \ / _` | __|
5                        |  __//  \| |_) | (_| | |_
6                         \___/_/\_\ .__/ \__,_|\__|
7                                  |_| XML parser
8 
9    Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
10    Copyright (c) 2000-2017 Expat development team
11    Licensed under the MIT license:
12 
13    Permission is  hereby granted,  free of charge,  to any  person obtaining
14    a  copy  of  this  software   and  associated  documentation  files  (the
15    "Software"),  to  deal in  the  Software  without restriction,  including
16    without  limitation the  rights  to use,  copy,  modify, merge,  publish,
17    distribute, sublicense, and/or sell copies of the Software, and to permit
18    persons  to whom  the Software  is  furnished to  do so,  subject to  the
19    following conditions:
20 
21    The above copyright  notice and this permission notice  shall be included
22    in all copies or substantial portions of the Software.
23 
24    THE  SOFTWARE  IS  PROVIDED  "AS  IS",  WITHOUT  WARRANTY  OF  ANY  KIND,
25    EXPRESS  OR IMPLIED,  INCLUDING  BUT  NOT LIMITED  TO  THE WARRANTIES  OF
26    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
27    NO EVENT SHALL THE AUTHORS OR  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
28    DAMAGES OR  OTHER LIABILITY, WHETHER  IN AN  ACTION OF CONTRACT,  TORT OR
29    OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
30    USE OR OTHER DEALINGS IN THE SOFTWARE.
31 */
32 
33 #include <sys/stat.h>
34 #include <stdlib.h>
35 #include <stdio.h>
36 #include <time.h>
37 #include "expat.h"
38 
39 #ifdef XML_LARGE_SIZE
40 #  define XML_FMT_INT_MOD "ll"
41 #else
42 #  define XML_FMT_INT_MOD "l"
43 #endif
44 
45 #ifdef XML_UNICODE_WCHAR_T
46 #  define XML_FMT_STR "ls"
47 #else
48 #  define XML_FMT_STR "s"
49 #endif
50 
51 static void
52 usage(const char *prog, int rc) {
53   fprintf(stderr, "usage: %s [-n] filename bufferSize nr_of_loops\n", prog);
54   exit(rc);
55 }
56 
57 int
58 main(int argc, char *argv[]) {
59   XML_Parser parser;
60   char *XMLBuf, *XMLBufEnd, *XMLBufPtr;
61   FILE *fd;
62   struct stat fileAttr;
63   int nrOfLoops, bufferSize, fileSize, i, isFinal;
64   int j = 0, ns = 0;
65   clock_t tstart, tend;
66   double cpuTime = 0.0;
67 
68   if (argc > 1) {
69     if (argv[1][0] == '-') {
70       if (argv[1][1] == 'n' && argv[1][2] == '\0') {
71         ns = 1;
72         j = 1;
73       } else
74         usage(argv[0], 1);
75     }
76   }
77 
78   if (argc != j + 4)
79     usage(argv[0], 1);
80 
81   if (stat(argv[j + 1], &fileAttr) != 0) {
82     fprintf(stderr, "could not access file '%s'\n", argv[j + 1]);
83     return 2;
84   }
85 
86   fd = fopen(argv[j + 1], "r");
87   if (! fd) {
88     fprintf(stderr, "could not open file '%s'\n", argv[j + 1]);
89     exit(2);
90   }
91 
92   bufferSize = atoi(argv[j + 2]);
93   nrOfLoops = atoi(argv[j + 3]);
94   if (bufferSize <= 0 || nrOfLoops <= 0) {
95     fprintf(stderr, "buffer size and nr of loops must be greater than zero.\n");
96     exit(3);
97   }
98 
99   XMLBuf = malloc(fileAttr.st_size);
100   fileSize = fread(XMLBuf, sizeof(char), fileAttr.st_size, fd);
101   fclose(fd);
102 
103   if (ns)
104     parser = XML_ParserCreateNS(NULL, '!');
105   else
106     parser = XML_ParserCreate(NULL);
107 
108   i = 0;
109   XMLBufEnd = XMLBuf + fileSize;
110   while (i < nrOfLoops) {
111     XMLBufPtr = XMLBuf;
112     isFinal = 0;
113     tstart = clock();
114     do {
115       int parseBufferSize = XMLBufEnd - XMLBufPtr;
116       if (parseBufferSize <= bufferSize)
117         isFinal = 1;
118       else
119         parseBufferSize = bufferSize;
120       if (! XML_Parse(parser, XMLBufPtr, parseBufferSize, isFinal)) {
121         fprintf(stderr,
122                 "error '%" XML_FMT_STR "' at line %" XML_FMT_INT_MOD
123                 "u character %" XML_FMT_INT_MOD "u\n",
124                 XML_ErrorString(XML_GetErrorCode(parser)),
125                 XML_GetCurrentLineNumber(parser),
126                 XML_GetCurrentColumnNumber(parser));
127         free(XMLBuf);
128         XML_ParserFree(parser);
129         exit(4);
130       }
131       XMLBufPtr += bufferSize;
132     } while (! isFinal);
133     tend = clock();
134     cpuTime += ((double)(tend - tstart)) / CLOCKS_PER_SEC;
135     XML_ParserReset(parser, NULL);
136     i++;
137   }
138 
139   XML_ParserFree(parser);
140   free(XMLBuf);
141 
142   printf("%d loops, with buffer size %d. Average time per loop: %f\n",
143          nrOfLoops, bufferSize, cpuTime / (double)nrOfLoops);
144   return 0;
145 }
146