Remove dead code.

[oota-llvm.git] / lib / Support / Windows / Process.inc

diff --git a/lib/Support/Windows/Process.inc b/lib/Support/Windows/Process.inc
index f9a3db9d918d30710beb2b111760816d938a0189..a794ca08f670d4a9dfe8577dd0af8b6986afdd27 100644 (file)
--- a/lib/Support/Windows/Process.inc
+++ b/lib/Support/Windows/Process.inc
@@ -12,11 +12,13 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/Allocator.h"
+#include <malloc.h>
+
+// The Windows.h header must be after LLVM and standard headers.
+#include "WindowsSupport.h"
 
-#include "Windows.h"
 #include <direct.h>
 #include <io.h>
-#include <malloc.h>
 #include <psapi.h>
 #include <shellapi.h>
 
@@ -358,3 +360,17 @@ const char *Process::ResetColor() {
   SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), defaultColors());
   return 0;
 }
+
+unsigned Process::GetRandomNumber() {
+  HCRYPTPROV HCPC;
+  if (!::CryptAcquireContextW(&HCPC, NULL, NULL, PROV_RSA_FULL,
+                              CRYPT_VERIFYCONTEXT))
+    assert(false && "Could not acquire a cryptographic context");
+
+  ScopedCryptContext CryptoProvider(HCPC);
+  unsigned Ret;
+  if (!::CryptGenRandom(CryptoProvider, sizeof(Ret),
+                        reinterpret_cast<BYTE *>(&Ret)))
+    assert(false && "Could not generate a random number");
+  return Ret;
+}