[Support] Add sys::Process::GetRandomNumber().

 - Primitive API, but we rarely have need for random numbers.

llvm-svn: 156237

1 files changed, 5 insertions, 1 deletions

diff --git a/llvm/include/llvm/Support/Process.h b/llvm/include/llvm/Support/Process.h
index d796b7906d3..91b92788f2c 100644
--- a/llvm/include/llvm/Support/Process.h
+++ b/llvm/include/llvm/Support/Process.h
@@ -1,4 +1,4 @@
-//===- llvm/Support/Process.h ------------------------------------*- C++ -*-===//
+//===- llvm/Support/Process.h -----------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -142,6 +142,10 @@ namespace sys {
 
       /// Resets the terminals colors, or returns an escape sequence to do so.
       static const char *ResetColor();
+
+      /// Get the result of a process wide random number generator. The
+      /// generator will be automatically seeded in non-deterministic fashion.
+      static unsigned GetRandomNumber();
     /// @}
   };
 }