text: // Copyright (c) 2012 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  // Parameter types for SRPC Invocation.
  
  #ifndef NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_SRPC_PARAMS_H
  #define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_SRPC_PARAMS_H
  
  #include "native_client/src/include/nacl_macros.h"
  #include "native_client/src/include/portability_string.h"
  #include "native_client/src/shared/srpc/nacl_srpc.h"
  
  namespace plugin {
  
  // A utility class that builds and deletes parameter vectors used in rpcs.
  class SrpcParams {
   public:
    SrpcParams() {
      memset(ins_, 0, sizeof(ins_));
      memset(outs_, 0, sizeof(outs_));
    }
  
    SrpcParams(const char* in_types, const char* out_types) {
      if (!Init(in_types, out_types)) {
        FreeAll();
      }
    }
  
    ~SrpcParams() {
      FreeAll();
    }
  
    bool Init(const char* in_types, const char* out_types);
  
    NaClSrpcArg** ins() const { return const_cast<NaClSrpcArg**>(ins_); }
    NaClSrpcArg** outs() const { return const_cast<NaClSrpcArg**>(outs_); }
  
   private:
    NACL_DISALLOW_COPY_AND_ASSIGN(SrpcParams);
    void FreeAll();
    // The ins_ and outs_ arrays contain one more element, to hold a NULL pointer
    // to indicate the end of the list.
    NaClSrpcArg* ins_[NACL_SRPC_MAX_ARGS + 1];
    NaClSrpcArg* outs_[NACL_SRPC_MAX_ARGS + 1];
  };
  
  }  // namespace plugin
  
  #endif  // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_SRPC_PARAMS_H
  