summaryrefslogtreecommitdiffstats
path: root/nsprpub/pr/tests/stat.c
blob: c570056f88f4aceaa12e4b338a3185cb95bc1292 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/*
 * Program to test different ways to get file info; right now it 
 * only works for solaris and OS/2.
 *
 */
#include "nspr.h"
#include "prpriv.h"
#include "prinrval.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#ifdef XP_OS2
#include <io.h>
#include <sys/types.h>
#include <sys/stat.h>
#endif

#define DEFAULT_COUNT 100000
PRInt32 count;

#ifndef XP_PC
char *filename = "/etc/passwd";
#else
char *filename = "..\\stat.c";
#endif

static void statPRStat(void)
{
    PRFileInfo finfo;
    PRInt32 index = count;
 
    for (;index--;) {
         PR_GetFileInfo(filename, &finfo);
    }
}

static void statStat(void)
{
    struct stat finfo;
    PRInt32 index = count;
 
    for (;index--;) {
        stat(filename, &finfo);
    }
}

/************************************************************************/

static void Measure(void (*func)(void), const char *msg)
{
    PRIntervalTime start, stop;
    double d;
    PRInt32 tot;

    start = PR_IntervalNow();
    (*func)();
    stop = PR_IntervalNow();

    d = (double)PR_IntervalToMicroseconds(stop - start);
    tot = PR_IntervalToMilliseconds(stop-start);

    printf("%40s: %6.2f usec avg, %d msec total\n", msg, d / count, tot);
}

int main(int argc, char **argv)
{
    PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
    PR_STDIO_INIT();

    if (argc > 1) {
	count = atoi(argv[1]);
    } else {
	count = DEFAULT_COUNT;
    }

    Measure(statPRStat, "time to call PR_GetFileInfo()");
    Measure(statStat, "time to call stat()");

    PR_Cleanup();
}