Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / grpc-cloned / ext / slice.cc

diff --git a/legacy-libs/grpc-cloned/ext/slice.cc b/legacy-libs/grpc-cloned/ext/slice.cc
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+/*
+ *
+ * Copyright 2016 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <grpc/slice.h>
+#include <grpc/support/alloc.h>
+#include <nan.h>
+#include <node.h>
+
+#include "slice.h"
+
+namespace grpc {
+namespace node {
+
+using Nan::Persistent;
+
+using v8::Local;
+using v8::String;
+using v8::Value;
+
+namespace {
+void string_destroy_func(void *user_data) {
+  delete reinterpret_cast<Nan::Utf8String *>(user_data);
+}
+
+void buffer_destroy_func(void *user_data) {
+  delete reinterpret_cast<PersistentValue *>(user_data);
+}
+}  // namespace
+
+grpc_slice CreateSliceFromString(const Local<String> source) {
+  Nan::HandleScope scope;
+  Nan::Utf8String *utf8_value = new Nan::Utf8String(source);
+  return grpc_slice_new_with_user_data(**utf8_value, utf8_value->length(),
+                                       string_destroy_func, utf8_value);
+}
+
+grpc_slice CreateSliceFromBuffer(const Local<Value> source) {
+  // Prerequisite: ::node::Buffer::HasInstance(source)
+  Nan::HandleScope scope;
+  return grpc_slice_new_with_user_data(
+      ::node::Buffer::Data(source), ::node::Buffer::Length(source),
+      buffer_destroy_func, new PersistentValue(source));
+}
+Local<String> CopyStringFromSlice(const grpc_slice slice) {
+  Nan::EscapableHandleScope scope;
+  if (GRPC_SLICE_LENGTH(slice) == 0) {
+    return scope.Escape(Nan::EmptyString());
+  }
+  return scope.Escape(
+      Nan::New<String>(const_cast<char *>(reinterpret_cast<const char *>(
+                           GRPC_SLICE_START_PTR(slice))),
+                       GRPC_SLICE_LENGTH(slice))
+          .ToLocalChecked());
+}
+
+Local<Value> CopyBufferFromSlice(const grpc_slice slice) {
+  Nan::EscapableHandleScope scope;
+  return scope.Escape(
+    Nan::CopyBuffer(reinterpret_cast<const char *>(GRPC_SLICE_START_PTR(slice)),
+      GRPC_SLICE_LENGTH(slice))
+    .ToLocalChecked());
+}
+
+}  // namespace node
+}  // namespace grpc