/*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 * 
 *  Gearmand client and server library.
 *
 *  Copyright (C) 2013 Data Differential, http://datadifferential.com/
 *  Copyright (C) 2013 Keyur Govande
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are
 *  met:
 *
 *      * Redistributions of source code must retain the above copyright
 *  notice, this list of conditions and the following disclaimer.
 *
 *      * Redistributions in binary form must reproduce the above
 *  copyright notice, this list of conditions and the following disclaimer
 *  in the documentation and/or other materials provided with the
 *  distribution.
 *
 *      * The names of its contributors may not be used to endorse or
 *  promote products derived from this software without specific prior
 *  written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 */

/**
 * @file
 * @brief Server options
 */

#include "gear_config.h"

#include "libgearman/common.h"

#include <memory>

bool gearman_request_option(gearman_universal_st &universal,
                            gearman_string_t &option)
{
  // Since we append to universal when we build the options, the below is not a memory leak.
  gearman_server_options_st *server_options = new (std::nothrow) gearman_server_options_st{universal, gearman_c_str(option), gearman_size(option)};
  if (!server_options)
  {
    gearman_error(universal, GEARMAN_MEMORY_ALLOCATION_FAILURE, "new gearman_server_options_st()");
    return false;
  }

  return true;
}

gearman_server_options_st::gearman_server_options_st(gearman_universal_st &universal_,
                                                     const char* option_arg, const size_t option_arg_size) : 
  _option{option_arg_size},
  next{nullptr},
  prev{nullptr},
#if __GNUC__ == 4 && __GNUC_MINOR__ < 9
  universal(universal_)
#else
  universal{universal_}
#endif
{
  _option.append(option_arg, option_arg_size);
  if (universal.server_options_list)
  {
    universal.server_options_list->prev= this;
  }
  next= universal.server_options_list;
  universal.server_options_list= this;
}

gearman_server_options_st::gearman_server_options_st(const gearman_server_options_st& copy) :
  _option(copy.option()),
  next{nullptr},
  prev{nullptr},
  universal(copy.universal)
{
  if (universal.server_options_list)
  {
    universal.server_options_list->prev= this;
  }
  next= universal.server_options_list;
  universal.server_options_list= this;
}

gearman_server_options_st::~gearman_server_options_st()
{
  { // Remove from universal list
    if (universal.server_options_list == this)
    {
      universal.server_options_list= next;
    }

    if (prev)
    {
      prev->next= next;
    }

    if (next)
    {
      next->prev= prev;
    }
  }
}