channel.h 2.8 KB

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  1. /*
  2. *
  3. * Copyright 2015, Google Inc.
  4. * All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without
  7. * modification, are permitted provided that the following conditions are
  8. * met:
  9. *
  10. * * Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. * * Redistributions in binary form must reproduce the above
  13. * copyright notice, this list of conditions and the following disclaimer
  14. * in the documentation and/or other materials provided with the
  15. * distribution.
  16. * * Neither the name of Google Inc. nor the names of its
  17. * contributors may be used to endorse or promote products derived from
  18. * this software without specific prior written permission.
  19. *
  20. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31. *
  32. */
  33. #ifndef NET_GRPC_NODE_CHANNEL_H_
  34. #define NET_GRPC_NODE_CHANNEL_H_
  35. #include <node.h>
  36. #include <nan.h>
  37. #include "grpc/grpc.h"
  38. namespace grpc {
  39. namespace node {
  40. bool ParseChannelArgs(v8::Local<v8::Value> args_val,
  41. grpc_channel_args **channel_args_ptr);
  42. void DeallocateChannelArgs(grpc_channel_args *channel_args);
  43. /* Wrapper class for grpc_channel structs */
  44. class Channel : public Nan::ObjectWrap {
  45. public:
  46. static void Init(v8::Local<v8::Object> exports);
  47. static bool HasInstance(v8::Local<v8::Value> val);
  48. /* This is used to typecheck javascript objects before converting them to
  49. this type */
  50. static v8::Persistent<v8::Value> prototype;
  51. /* Returns the grpc_channel struct that this object wraps */
  52. grpc_channel *GetWrappedChannel();
  53. private:
  54. explicit Channel(grpc_channel *channel);
  55. ~Channel();
  56. // Prevent copying
  57. Channel(const Channel &);
  58. Channel &operator=(const Channel &);
  59. static NAN_METHOD(New);
  60. static NAN_METHOD(Close);
  61. static NAN_METHOD(GetTarget);
  62. static NAN_METHOD(GetConnectivityState);
  63. static NAN_METHOD(WatchConnectivityState);
  64. static Nan::Callback *constructor;
  65. static Nan::Persistent<v8::FunctionTemplate> fun_tpl;
  66. grpc_channel *wrapped_channel;
  67. };
  68. } // namespace node
  69. } // namespace grpc
  70. #endif // NET_GRPC_NODE_CHANNEL_H_