mirror of https://github.com/grpc/grpc-node.git
123 lines
3.3 KiB
C++
123 lines
3.3 KiB
C++
/*
|
|
*
|
|
* Copyright 2015 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef NET_GRPC_NODE_CALL_H_
|
|
#define NET_GRPC_NODE_CALL_H_
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include <nan.h>
|
|
#include <node.h>
|
|
#include "grpc/grpc.h"
|
|
#include "grpc/support/log.h"
|
|
|
|
#include "channel.h"
|
|
|
|
namespace grpc {
|
|
namespace node {
|
|
|
|
using std::unique_ptr;
|
|
using std::shared_ptr;
|
|
|
|
v8::Local<v8::Value> nanErrorWithCode(const char *msg, grpc_call_error code);
|
|
|
|
v8::Local<v8::Value> ParseMetadata(const grpc_metadata_array *metadata_array);
|
|
|
|
bool CreateMetadataArray(v8::Local<v8::Object> metadata,
|
|
grpc_metadata_array *array);
|
|
|
|
void DestroyMetadataArray(grpc_metadata_array *array);
|
|
|
|
/* Wrapper class for grpc_call structs. */
|
|
class Call : public Nan::ObjectWrap {
|
|
public:
|
|
static void Init(v8::Local<v8::Object> exports);
|
|
static bool HasInstance(v8::Local<v8::Value> val);
|
|
/* Wrap a grpc_call struct in a javascript object */
|
|
static v8::Local<v8::Value> WrapStruct(grpc_call *call);
|
|
|
|
grpc_call *GetWrappedCall();
|
|
|
|
void CompleteBatch(bool is_final_op);
|
|
|
|
private:
|
|
explicit Call(grpc_call *call);
|
|
~Call();
|
|
|
|
// Prevent copying
|
|
Call(const Call &);
|
|
Call &operator=(const Call &);
|
|
|
|
void DestroyCall();
|
|
|
|
static NAN_METHOD(New);
|
|
static NAN_METHOD(StartBatch);
|
|
static NAN_METHOD(Cancel);
|
|
static NAN_METHOD(CancelWithStatus);
|
|
static NAN_METHOD(GetPeer);
|
|
static NAN_METHOD(SetCredentials);
|
|
static Nan::Callback *constructor;
|
|
// Used for typechecking instances of this javascript class
|
|
static Nan::Persistent<v8::FunctionTemplate> fun_tpl;
|
|
|
|
grpc_call *wrapped_call;
|
|
// The number of ops that were started but not completed on this call
|
|
int pending_batches;
|
|
/* Indicates whether the "final" op on a call has completed. For a client
|
|
call, this is GRPC_OP_RECV_STATUS_ON_CLIENT and for a server call, this
|
|
is GRPC_OP_SEND_STATUS_FROM_SERVER */
|
|
bool has_final_op_completed;
|
|
char *peer;
|
|
};
|
|
|
|
class Op {
|
|
public:
|
|
virtual v8::Local<v8::Value> GetNodeValue() const = 0;
|
|
virtual bool ParseOp(v8::Local<v8::Value> value, grpc_op *out) = 0;
|
|
virtual ~Op();
|
|
v8::Local<v8::Value> GetOpType() const;
|
|
virtual bool IsFinalOp() = 0;
|
|
virtual void OnComplete(bool success) = 0;
|
|
|
|
protected:
|
|
virtual std::string GetTypeString() const = 0;
|
|
};
|
|
|
|
typedef std::vector<unique_ptr<Op>> OpVec;
|
|
struct tag {
|
|
tag(Nan::Callback *callback, OpVec *ops, Call *call,
|
|
v8::Local<v8::Value> call_value);
|
|
~tag();
|
|
Nan::Callback *callback;
|
|
Nan::AsyncResource *async_resource;
|
|
OpVec *ops;
|
|
Call *call;
|
|
Nan::Persistent<v8::Value, Nan::CopyablePersistentTraits<v8::Value>>
|
|
call_persist;
|
|
};
|
|
|
|
void DestroyTag(void *tag);
|
|
|
|
void CompleteTag(void *tag, const char *error_message);
|
|
|
|
} // namespace node
|
|
} // namespace grpc
|
|
|
|
#endif // NET_GRPC_NODE_CALL_H_
|