• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /*
2  * Copyright (C) 2010 Google Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  * 1.  Redistributions of source code must retain the above copyright
9  *     notice, this list of conditions and the following disclaimer.
10  * 2.  Redistributions in binary form must reproduce the above copyright
11  *     notice, this list of conditions and the following disclaimer in the
12  *     documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #include "config.h"
27 
28 #include "TreeTestHelpers.h"
29 
30 #include <cstdlib>
31 #include <wtf/CurrentTime.h>
32 
33 namespace WebCore {
34 namespace TreeTestHelpers {
35 
generateSeed()36 int32_t generateSeed()
37 {
38     // A seed of 1 has the special behavior of resetting the random
39     // number generator. Assume that if we call this routine that we
40     // don't want this behavior.
41     int32_t seed;
42     do {
43         seed = static_cast<int32_t>(currentTime());
44     } while (seed <= 1);
45     return seed;
46 }
47 
initRandom(const int32_t seed)48 void initRandom(const int32_t seed)
49 {
50     srand(seed);
51 }
52 
nextRandom(const int32_t maximumValue)53 int32_t nextRandom(const int32_t maximumValue)
54 {
55     // rand_r is not available on Windows
56     return rand() % maximumValue;
57 }
58 
59 } // namespace TreeTestHelpers
60 } // namespace WebCore
61