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| author | Daniel Dunbar <daniel@zuster.org> | 2012-05-05 16:36:20 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2012-05-05 16:36:20 +0000 |
| commit | b57ddd4e292cb3a2ef8d2ded445c5b4b79f7c864 (patch) | |
| tree | 0eac2743805d5330d4ba492403aa36ea130d5790 /llvm/lib/Support/Process.cpp | |
| parent | 407a85e7a6c889ea4f561b7b0daee30d4bb0d865 (diff) | |
| download | bcm5719-llvm-b57ddd4e292cb3a2ef8d2ded445c5b4b79f7c864.tar.gz bcm5719-llvm-b57ddd4e292cb3a2ef8d2ded445c5b4b79f7c864.zip | |
[Support] Add sys::Process::GetRandomNumber().
- Primitive API, but we rarely have need for random numbers.
llvm-svn: 156237
Diffstat (limited to 'llvm/lib/Support/Process.cpp')
| -rw-r--r-- | llvm/lib/Support/Process.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/Support/Process.cpp b/llvm/lib/Support/Process.cpp index 88ca7c3f220..c65cb454046 100644 --- a/llvm/lib/Support/Process.cpp +++ b/llvm/lib/Support/Process.cpp @@ -22,6 +22,15 @@ using namespace sys; //=== independent code. //===----------------------------------------------------------------------===// +unsigned llvm::sys::Process::GetRandomNumber() { +#if defined(HAVE_ARC4RANDOM) + return arc4random(); +#else + static int x = (::srand(::time(NULL)), 0); + return rand(); +#endif +} + } // Include the platform-specific parts of this class. |
