Export media_cas_proxy_sdk

util/random/BUILD

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+################################################################################
+# Copyright 2017 Google LLC.
+#
+# This software is licensed under the terms defined in the Widevine Master
+# License Agreement. For a copy of this agreement, please contact
+# widevine-licensing@google.com.
+################################################################################
+
+package(
+    default_visibility = ["//visibility:public"],
+)
+
+cc_library(
+    name = "global_id",
+    hdrs = [
+        "global_id.h",
+    ],
+    deps = [
+        "//external:openssl",
+    ],
+)
+
+cc_test(
+    name = "global_id_test",
+    srcs = ["global_id_test.cc"],
+    deps = [
+        ":global_id",
+        "//base",
+        "//testing:gunit_main",
+    ],
+)

util/random/global_id.h

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+////////////////////////////////////////////////////////////////////////////////
+// Copyright 2017 Google LLC.
+//
+// This software is licensed under the terms defined in the Widevine Master
+// License Agreement. For a copy of this agreement, please contact
+// widevine-licensing@google.com.
+////////////////////////////////////////////////////////////////////////////////
+
+#ifndef UTIL_RANDOM_GLOBAL_ID_H_
+#define UTIL_RANDOM_GLOBAL_ID_H_
+
+#include "openssl/rand.h"
+
+namespace widevine {
+namespace util {
+namespace random {
+
+static uint64_t NewGlobalID() {
+  static __thread uint64_t val = 0;
+  if (val == 0) {
+    RAND_bytes(reinterpret_cast<uint8_t*>(&val), sizeof(val));
+  }
+  return val++;
+}
+
+}  // namespace random
+}  // namespace util
+}  // namespace widevine
+
+#endif  // UTIL_RANDOM_GLOBAL_ID_H_

util/random/global_id_test.cc

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+////////////////////////////////////////////////////////////////////////////////
+// Copyright 2017 Google LLC.
+//
+// This software is licensed under the terms defined in the Widevine Master
+// License Agreement. For a copy of this agreement, please contact
+// widevine-licensing@google.com.
+////////////////////////////////////////////////////////////////////////////////
+
+#include "util/random/global_id.h"
+
+#include "glog/logging.h"
+#include "testing/gunit.h"
+
+namespace widevine {
+namespace util {
+namespace random {
+
+TEST(GlobalIDTest, NewGlobalID) {
+  uint64_t id = NewGlobalID();
+  LOG(INFO) << "NewGlobalID " << id;
+  EXPECT_EQ(id + 1, NewGlobalID());
+  EXPECT_EQ(id + 2, NewGlobalID());
+}
+
+}  // namespace random
+}  // namespace util
+}  // namespace widevine