Index: base/rand_util_nacl.cc |
=================================================================== |
--- base/rand_util_nacl.cc (revision 0) |
+++ base/rand_util_nacl.cc (revision 0) |
@@ -0,0 +1,54 @@ |
+// Copyright (c) 2012 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "base/rand_util.h" |
+#include "base/rand_util_c.h" |
+ |
+#include "base/lazy_instance.h" |
+#include "base/logging.h" |
+ |
+// TODO(bbudge) Replace this with a proper system header file when NaCl |
+// provides one. |
+#include "native_client/src/untrusted/irt/irt.h" |
+ |
+namespace { |
+ |
+// Create a wrapper class so we can cache the NaCl random number interface. |
+class URandomInterface { |
+ public: |
+ URandomInterface() { |
+ size_t result = nacl_interface_query(NACL_IRT_RANDOM_v0_1, |
+ &interface_, |
+ sizeof(interface_)); |
+ DCHECK_EQ(result, sizeof(interface_)) << "Can't get random interface."; |
+ } |
+ |
+ uint64 get_random_bytes() const { |
+ size_t nbytes; |
+ uint64 result; |
+ int error = interface_.get_random_bytes(&result, |
+ sizeof(result), |
+ &nbytes); |
+ DCHECK_EQ(error, 0); |
+ DCHECK_EQ(nbytes, sizeof(result)); |
+ return result; |
+ } |
+ |
+ private: |
+ struct nacl_irt_random interface_; |
+}; |
+ |
+base::LazyInstance<URandomInterface> g_urandom_interface = |
+ LAZY_INSTANCE_INITIALIZER; |
+ |
+} // namespace |
+ |
+namespace base { |
+ |
+uint64 RandUint64() { |
+ return g_urandom_interface.Pointer()->get_random_bytes(); |
+} |
+ |
+} // namespace base |
+ |
Property changes on: base/rand_util_nacl.cc |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |