if/core/bsched.h

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/*
 * $Id: bsched.h 12583 2006-12-06 05:42:15Z cbiere $
 *
 * Copyright (c) 2001-2003, Raphael Manfredi
 *
 *----------------------------------------------------------------------
 * This file is part of gtk-gnutella.
 *
 *  gtk-gnutella 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.
 *
 *  gtk-gnutella 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 gtk-gnutella; if not, write to the Free Software
 *  Foundation, Inc.:
 *      59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *----------------------------------------------------------------------
 */

#ifndef _if_core_bsched_h_
#define _if_core_bsched_h_

#include "if/core/wrap.h"   /* For wrap_io_t */
#include "lib/inputevt.h"   /* For inputevt_handler_t */

#define BS_BW_MAX   (2*1024*1024)

typedef struct bsched bsched_t;

typedef enum {
    BSCHED_BWS_IN,
    BSCHED_BWS_OUT,
    BSCHED_BWS_GIN,
    BSCHED_BWS_GOUT,
    BSCHED_BWS_GLIN,
    BSCHED_BWS_GLOUT,
    BSCHED_BWS_GIN_UDP,
    BSCHED_BWS_GOUT_UDP,

    NUM_BSCHED_BWS,
    BSCHED_BWS_INVALID = NUM_BSCHED_BWS
} bsched_bws_t;

enum bio_source_magic { BIO_SOURCE_MAGIC = 0x80b3bf07U };

typedef struct bio_source {
    enum bio_source_magic magic;    
    bsched_bws_t bws;                   
    wrap_io_t *wio;                 
    gint io_tag;                    
    guint io_flags;                 
    inputevt_handler_t io_callback;     
    gpointer io_arg;                
    guint32 flags;                  
    guint bw_actual;                
    guint bw_last_bps;              
    guint bw_fast_ema;              
    guint bw_slow_ema;              
} bio_source_t;

/*
 * Source flags.
 */

#define BIO_F_READ          0x00000001  
#define BIO_F_WRITE         0x00000002  
#define BIO_F_ACTIVE        0x00000004  
#define BIO_F_USED          0x00000008  
#define BIO_F_RW            (BIO_F_READ|BIO_F_WRITE)

#define BIO_EMA_SHIFT   7

#define bio_bps(b)      ((b)->bw_last_bps)
#define bio_avg_bps(b)  ((b)->bw_slow_ema >> BIO_EMA_SHIFT)

#endif /* _if_core_bsched_h_ */

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