/*
 *
 * 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.
 *
 */

#ifndef GRPCPP_IMPL_CODEGEN_CORE_CODEGEN_H
#define GRPCPP_IMPL_CODEGEN_CORE_CODEGEN_H

// This file should be compiled as part of grpcpp.

#include <grpc/byte_buffer.h>
#include <grpc/grpc.h>
#include <grpc/impl/codegen/grpc_types.h>
#include <grpcpp/impl/codegen/core_codegen_interface.h>

namespace grpc {

/// Implementation of the core codegen interface.
class CoreCodegen final : public CoreCodegenInterface {
 private:
  virtual const grpc_completion_queue_factory*
  grpc_completion_queue_factory_lookup(
      const grpc_completion_queue_attributes* attributes) override;
  virtual grpc_completion_queue* grpc_completion_queue_create(
      const grpc_completion_queue_factory* factory,
      const grpc_completion_queue_attributes* attributes,
      void* reserved) override;
  grpc_completion_queue* grpc_completion_queue_create_for_next(
      void* reserved) override;
  grpc_completion_queue* grpc_completion_queue_create_for_pluck(
      void* reserved) override;
  void grpc_completion_queue_destroy(grpc_completion_queue* cq) override;
  grpc_event grpc_completion_queue_pluck(grpc_completion_queue* cq, void* tag,
                                         gpr_timespec deadline,
                                         void* reserved) override;

  void* gpr_malloc(size_t size) override;
  void gpr_free(void* p) override;

  void grpc_init() override;
  void grpc_shutdown() override;

  void gpr_mu_init(gpr_mu* mu) override;
  void gpr_mu_destroy(gpr_mu* mu) override;
  void gpr_mu_lock(gpr_mu* mu) override;
  void gpr_mu_unlock(gpr_mu* mu) override;
  void gpr_cv_init(gpr_cv* cv) override;
  void gpr_cv_destroy(gpr_cv* cv) override;
  int gpr_cv_wait(gpr_cv* cv, gpr_mu* mu, gpr_timespec abs_deadline) override;
  void gpr_cv_signal(gpr_cv* cv) override;
  void gpr_cv_broadcast(gpr_cv* cv) override;

  grpc_call_error grpc_call_cancel_with_status(grpc_call* call,
                                               grpc_status_code status,
                                               const char* description,
                                               void* reserved) override;
  void grpc_call_ref(grpc_call* call) override;
  void grpc_call_unref(grpc_call* call) override;
  virtual void* grpc_call_arena_alloc(grpc_call* call, size_t length) override;

  grpc_byte_buffer* grpc_byte_buffer_copy(grpc_byte_buffer* bb) override;
  void grpc_byte_buffer_destroy(grpc_byte_buffer* bb) override;
  size_t grpc_byte_buffer_length(grpc_byte_buffer* bb) override;

  int grpc_byte_buffer_reader_init(grpc_byte_buffer_reader* reader,
                                   grpc_byte_buffer* buffer) override;
  void grpc_byte_buffer_reader_destroy(
      grpc_byte_buffer_reader* reader) override;
  int grpc_byte_buffer_reader_next(grpc_byte_buffer_reader* reader,
                                   grpc_slice* slice) override;

  grpc_byte_buffer* grpc_raw_byte_buffer_create(grpc_slice* slice,
                                                size_t nslices) override;
  grpc_slice grpc_slice_new_with_user_data(void* p, size_t len,
                                           void (*destroy)(void*),
                                           void* user_data) override;
  grpc_slice grpc_slice_new_with_len(void* p, size_t len,
                                     void (*destroy)(void*, size_t)) override;
  grpc_slice grpc_empty_slice() override;
  grpc_slice grpc_slice_malloc(size_t length) override;
  void grpc_slice_unref(grpc_slice slice) override;
  grpc_slice grpc_slice_ref(grpc_slice slice) override;
  grpc_slice grpc_slice_split_tail(grpc_slice* s, size_t split) override;
  grpc_slice grpc_slice_split_head(grpc_slice* s, size_t split) override;
  grpc_slice grpc_slice_sub(grpc_slice s, size_t begin, size_t end) override;
  void grpc_slice_buffer_add(grpc_slice_buffer* sb, grpc_slice slice) override;
  void grpc_slice_buffer_pop(grpc_slice_buffer* sb) override;
  grpc_slice grpc_slice_from_static_buffer(const void* buffer,
                                           size_t length) override;
  grpc_slice grpc_slice_from_copied_buffer(const void* buffer,
                                           size_t length) override;
  void grpc_metadata_array_init(grpc_metadata_array* array) override;
  void grpc_metadata_array_destroy(grpc_metadata_array* array) override;

  gpr_timespec gpr_inf_future(gpr_clock_type type) override;
  gpr_timespec gpr_time_0(gpr_clock_type type) override;

  virtual const Status& ok() override;
  virtual const Status& cancelled() override;

  void assert_fail(const char* failed_assertion, const char* file,
                   int line) override;
};

}  // namespace grpc

#endif  // GRPCPP_IMPL_CODEGEN_CORE_CODEGEN_H