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| author | Steve Block <steveblock@google.com> | 2010-02-02 14:57:50 +0000 |
|---|---|---|
| committer | Steve Block <steveblock@google.com> | 2010-02-04 15:06:55 +0000 |
| commit | d0825bca7fe65beaee391d30da42e937db621564 (patch) | |
| tree | 7461c49eb5844ffd1f35d1ba2c8b7584c1620823 /JavaScriptCore/wtf/RandomNumber.cpp | |
| parent | 3db770bd97c5a59b6c7574ca80a39e5a51c1defd (diff) | |
| download | external_webkit-d0825bca7fe65beaee391d30da42e937db621564.zip external_webkit-d0825bca7fe65beaee391d30da42e937db621564.tar.gz external_webkit-d0825bca7fe65beaee391d30da42e937db621564.tar.bz2 | |
Merge webkit.org at r54127 : Initial merge by git
Change-Id: Ib661abb595522f50ea406f72d3a0ce17f7193c82
Diffstat (limited to 'JavaScriptCore/wtf/RandomNumber.cpp')
| -rw-r--r-- | JavaScriptCore/wtf/RandomNumber.cpp | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/JavaScriptCore/wtf/RandomNumber.cpp b/JavaScriptCore/wtf/RandomNumber.cpp index 52fb130..fc48263 100644 --- a/JavaScriptCore/wtf/RandomNumber.cpp +++ b/JavaScriptCore/wtf/RandomNumber.cpp @@ -34,12 +34,18 @@ #include <stdint.h> #include <stdlib.h> -#if PLATFORM(WINCE) +#if OS(WINCE) extern "C" { #include "wince/mt19937ar.c" } #endif +#if PLATFORM(BREWMP) +#include <AEEAppGen.h> +#include <AEESource.h> +#include <AEEStdLib.h> +#endif + namespace WTF { double weakRandomNumber() @@ -47,6 +53,10 @@ double weakRandomNumber() #if COMPILER(MSVC) && defined(_CRT_RAND_S) // rand_s is incredibly slow on windows so we fall back on rand for Math.random return (rand() + (rand() / (RAND_MAX + 1.0))) / (RAND_MAX + 1.0); +#elif PLATFORM(BREWMP) + uint32_t bits; + GETRAND(reinterpret_cast<byte*>(&bits), sizeof(uint32_t)); + return static_cast<double>(bits) / (static_cast<double>(std::numeric_limits<uint32_t>::max()) + 1.0); #else return randomNumber(); #endif @@ -66,10 +76,10 @@ double randomNumber() uint32_t bits; rand_s(&bits); return static_cast<double>(bits) / (static_cast<double>(std::numeric_limits<uint32_t>::max()) + 1.0); -#elif PLATFORM(DARWIN) +#elif OS(DARWIN) uint32_t bits = arc4random(); return static_cast<double>(bits) / (static_cast<double>(std::numeric_limits<uint32_t>::max()) + 1.0); -#elif PLATFORM(UNIX) +#elif OS(UNIX) uint32_t part1 = random() & (RAND_MAX - 1); uint32_t part2 = random() & (RAND_MAX - 1); // random only provides 31 bits @@ -80,9 +90,9 @@ double randomNumber() // Mask off the low 53bits fullRandom &= (1LL << 53) - 1; return static_cast<double>(fullRandom)/static_cast<double>(1LL << 53); -#elif PLATFORM(WINCE) +#elif OS(WINCE) return genrand_res53(); -#elif PLATFORM(WIN_OS) +#elif OS(WINDOWS) uint32_t part1 = rand() & (RAND_MAX - 1); uint32_t part2 = rand() & (RAND_MAX - 1); uint32_t part3 = rand() & (RAND_MAX - 1); @@ -99,6 +109,16 @@ double randomNumber() // Mask off the low 53bits fullRandom &= (1LL << 53) - 1; return static_cast<double>(fullRandom)/static_cast<double>(1LL << 53); +#elif PLATFORM(BREWMP) + uint32_t bits; + ISource* randomSource; + + IShell* shell = reinterpret_cast<AEEApplet*>(GETAPPINSTANCE())->m_pIShell; + ISHELL_CreateInstance(shell, AEECLSID_RANDOM, reinterpret_cast<void**>(&randomSource)); + ISOURCE_Read(randomSource, reinterpret_cast<char*>(&bits), 4); + ISOURCE_Release(randomSource); + + return static_cast<double>(bits) / (static_cast<double>(std::numeric_limits<uint32_t>::max()) + 1.0); #else uint32_t part1 = rand() & (RAND_MAX - 1); uint32_t part2 = rand() & (RAND_MAX - 1); |