/* * 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