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Unified Diff: runtime/lib/math.cc

Issue 200483003: - Do not rely on time to seed the default PRNG. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 6 years, 9 months ago
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Index: runtime/lib/math.cc
===================================================================
--- runtime/lib/math.cc (revision 33702)
+++ runtime/lib/math.cc (working copy)
@@ -178,4 +178,12 @@
return Object::null();
}
+
+DEFINE_NATIVE_ENTRY(Random_initialSeed, 0) {
+ Random* rnd = isolate->random();
+ int64_t seed = rnd->NextUInt32();
+ seed |= (static_cast<int64_t>(rnd->NextUInt32())) << 32;
siva 2014/03/14 17:27:13 I would prefer seed |= (static_cast<int64_t>(rnd-
+ return Integer::New(seed);
+}
+
} // namespace dart
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