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