src/node/ext/completion_queue_async_worker.cc

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 *
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 * modification, are permitted provided that the following conditions are
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#include <node.h>
#include <nan.h>

#include "grpc/grpc.h"
#include "grpc/support/log.h"
#include "grpc/support/time.h"
#include "completion_queue_async_worker.h"
#include "call.h"

namespace grpc {
namespace node {

using v8::Function;
using v8::Handle;
using v8::Object;
using v8::Persistent;
using v8::Value;

grpc_completion_queue *CompletionQueueAsyncWorker::queue;

CompletionQueueAsyncWorker::CompletionQueueAsyncWorker()
    : NanAsyncWorker(NULL) {}

CompletionQueueAsyncWorker::~CompletionQueueAsyncWorker() {}

void CompletionQueueAsyncWorker::Execute() {
  result = grpc_completion_queue_next(queue, gpr_inf_future);
  gpr_log(GPR_DEBUG, "Handling response on call %p", result->call);
  if (result->data.op_complete != GRPC_OP_OK) {
    SetErrorMessage("The batch encountered an error");
  }
}

grpc_completion_queue *CompletionQueueAsyncWorker::GetQueue() { return queue; }

void CompletionQueueAsyncWorker::Next() {
  NanScope();
  CompletionQueueAsyncWorker *worker = new CompletionQueueAsyncWorker();
  NanAsyncQueueWorker(worker);
}

void CompletionQueueAsyncWorker::Init(Handle<Object> exports) {
  NanScope();
  queue = grpc_completion_queue_create();
}

void CompletionQueueAsyncWorker::HandleOKCallback() {
  NanScope();
  gpr_log(GPR_DEBUG, "Handling response on call %p", result->call);
  NanCallback callback = GetTagCallback(result->tag);
  Handle<Value> argv[] = {NanNull(), GetTagNodeValue(result->tag)};

  callback.Call(2, argv);

  DestroyTag(result->tag);
  grpc_event_finish(result);
  result = NULL;
}

void CompletionQueueAsyncWorker::HandleErrorCallback() {
  NanScope();
  NanCallback callback = GetTagCallback(result->tag);
  Handle<Value> argv[] = {NanError(ErrorMessage())};

  callback.Call(1, argv);

  DestroyTag(result->tag);
  grpc_event_finish(result);
  result = NULL;
}

}  // namespace node
}  // namespace grpc