grpc/include/grpc++/impl/codegen/grpc_library.h

/*
 *
 * Copyright 2016, Google Inc.
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 * modification, are permitted provided that the following conditions are
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 *
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
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#ifndef GRPCXX_IMPL_CODEGEN_GRPC_LIBRARY_H
#define GRPCXX_IMPL_CODEGEN_GRPC_LIBRARY_H

#include <grpc++/impl/codegen/core_codegen_interface.h>

namespace grpc {

class GrpcLibraryInterface {
 public:
  virtual void init() = 0;
  virtual void shutdown() = 0;
};

/// Initialized by \a grpc::GrpcLibraryInitializer from
/// <grpc++/impl/grpc_library.h>
extern GrpcLibraryInterface* g_glip;

/// Classes that require gRPC to be initialized should inherit from this class.
class GrpcLibraryCodegen {
 public:
  GrpcLibraryCodegen() {
    GPR_CODEGEN_ASSERT(g_glip &&
                       "gRPC library not initialized. See "
                       "grpc::internal::GrpcLibraryInitializer.");
    g_glip->init();
  }
  virtual ~GrpcLibraryCodegen() {
    GPR_CODEGEN_ASSERT(g_glip &&
                       "gRPC library not initialized. See "
                       "grpc::internal::GrpcLibraryInitializer.");
    g_glip->shutdown();
  }
};

}  // namespace grpc

#endif  // GRPCXX_IMPL_CODEGEN_GRPC_LIBRARY_H