| /* |
| * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef WTF_RandomNumberSeed_h |
| #define WTF_RandomNumberSeed_h |
| |
| #include <stdlib.h> |
| #include <time.h> |
| #include <wtf/CryptographicallyRandomNumber.h> |
| |
| #if HAVE(SYS_TIME_H) |
| #include <sys/time.h> |
| #endif |
| |
| #if OS(UNIX) |
| #include <sys/types.h> |
| #include <unistd.h> |
| #endif |
| |
| namespace WTF { |
| |
| inline void initializeRandomNumberGenerator() |
| { |
| #if OS(DARWIN) |
| // On Darwin we use arc4random which initialises itself. |
| #elif COMPILER(MSVC) && defined(_CRT_RAND_S) |
| // On Windows we use rand_s which initialises itself |
| #elif OS(UNIX) |
| srandom(cryptographicallyRandomNumber()); |
| #else |
| srand(cryptographicallyRandomNumber()); |
| #endif |
| |
| } |
| |
| } |
| |
| #endif |
