object.h

一个WEB服务器的性能测试工具

/*
    httperf -- a tool for measuring web server performance
    Copyright (C) 2000  Hewlett-Packard Company
    Contributed by David Mosberger-Tang <[e-mail]>

    This file is part of httperf, a web server performance measurment
    tool.

    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA
*/
#ifndef object_h
#define object_h

#ifdef DEBUG
# define object_is_conn(o)	(((Object *) (o))->type == OBJ_CONN)
# define object_is_call(o)	(((Object *) (o))->type == OBJ_CALL)
# define object_is_sess(o)	(((Object *) (o))->type == OBJ_SESS)
#else
# define object_is_conn(o)	1
# define object_is_call(o)	1
# define object_is_sess(o)	1
#endif

typedef enum Object_Type
  {
    OBJ_CONN,			/* connection object */
    OBJ_CALL,			/* call object */
    OBJ_SESS,			/* session object */
    OBJ_NUM_TYPES
  }
Object_Type;

typedef struct Object
  {
    Object_Type type;
    u_int ref_count;			/* # of references to this object */
  }
Object;

/* This may be called during httperf initialize to reserve SIZE
   "private" bytes in objects of type TYPE.  The return value is the
   offset of the private area.  */

extern size_t object_expand (Object_Type type, size_t size);

/* Create a new object of type TYPE.  */
extern Object *object_new (Object_Type type);

/* Create a new reference for object OBJ.  */
#define object_inc_ref(o)	(++(o)->ref_count)

/* Decrement the reference for object OBJ.  If the reference count
   reaches zero, the object's destroy function is called.  */
extern void object_dec_ref (Object *obj);

#endif /* object_h */