gearman/libgearman/interface/client.hpp

/*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 * 
 *  Gearmand client and server library.
 *
 *  Copyright (C) 2012 Data Differential, http://datadifferential.com/
 *  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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 */

#pragma once

#include "libgearman/actions.hpp"
#include "libgearman/interface/universal.hpp"
#include "libgearman/is.hpp"

struct Client
{
  struct Options {
    bool non_blocking;
    bool unbuffered_result;
    bool no_new;
    bool free_tasks;
    bool generate_unique;
    bool exceptions;

    Options():
      non_blocking(false),
      unbuffered_result(false),
      no_new(false),
      free_tasks(false),
      generate_unique(false),
      exceptions(false)
    {
    }
  } options;
  enum gearman_client_t state;
  uint32_t new_tasks;
  uint32_t running_tasks;
  uint32_t task_count;
  void *context;
  struct gearman_connection_st *con;
  gearman_task_st *task;
  gearman_task_st *task_list;
  gearman_task_context_free_fn *task_context_free_fn;
  gearman_universal_st universal;
  struct gearman_actions_t actions;
  gearman_job_handle_t _do_handle; // Backwards compatible


  Client(gearman_client_st* shell_) :
    state(GEARMAN_CLIENT_STATE_IDLE),
    new_tasks(0),
    running_tasks(0),
    task_count(0),
    context(NULL),
    con(NULL),
    task(NULL),
    task_list(NULL),
    task_context_free_fn(NULL),
    actions(gearman_actions_default()),
    _shell(shell_)
  {
    _do_handle[0]= 0;

    if (shell_ and shell_ == &_owned_shell)
    {
      gearman_set_allocated(_shell, true);
    }
    else if (shell_)
    {
      gearman_set_allocated(_shell, false);
    }
    else
    {
      _shell= &_owned_shell;
      gearman_set_allocated(_shell, true);
    }

    _shell->impl(this);
    gearman_set_initialized(_shell, true);
  }

  gearman_return_t add_server(const char *host, const char* service_);

  ~Client()
  {
    if (_shell)
    {
#ifndef NDBUG
      if (_shell == &_owned_shell)
      {
        assert(gearman_is_allocated(_shell));
      }
      else // _shell != &_owned_shell
#endif
      {
        gearman_set_allocated(_shell, false);
        gearman_set_initialized(_shell, false);
        _shell->_impl= NULL;
      }
    }
  }

  gearman_client_st* shell()
  {
    return _shell;
  }

  bool ssl() const
  {
    return universal.ssl();
  }

  void ssl(bool ssl_)
  {
    universal.ssl(ssl_);
  }

  const char* error() const
  {
    return universal.error();
  }

  gearman_return_t error_code() const
  {
    return universal.error_code();
  }

private:
  gearman_client_st* _shell;
  gearman_client_st _owned_shell;
};