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/*
* Pure Data Packet header file. DPD command class
* Copyright (c) by Tom Schouten <tom@zwizwa.be>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/* this object implements a dpd command queue and command object */
#include "pdp_dpd_command.h"
#include "pdp_mem.h"
void pdp_dpd_commandfactory_init(t_pdp_dpd_commandfactory *x, u32 size)
{
x->nb_commands = 0;
x->command_size = size;
x->command = 0;
}
void _pdp_dpd_commandfactory_free(t_pdp_dpd_command *x)
{
if (x) _pdp_dpd_commandfactory_free(x->next);
pdp_dealloc(x);
}
void pdp_dpd_commandfactory_free(t_pdp_dpd_commandfactory *x)
{
_pdp_dpd_commandfactory_free(x->command);
x->command = 0;
x->nb_commands = 0;
}
/* factory method */
t_pdp_dpd_command *pdp_dpd_commandfactory_get_new_command(t_pdp_dpd_commandfactory *x)
{
t_pdp_dpd_command *c = x->command;
t_pdp_dpd_command *oldhead = c;
/* check if we can reuse */
while (c){
if (!c->used){
c->used = 1;
//post("reusing command %x", c, c->used);
return c;
}
//post("command %x is used %d", c, c->used);
c = c->next;
}
/* create a new command */
x->command = (t_pdp_dpd_command *)pdp_alloc(x->command_size);
x->command->next = oldhead;
x->command->used = 1;
x->nb_commands++;
//post("created command %x, nbcommands: %d", x->command, x->nb_commands);
return x->command;
}
/* (self)destructor */
void pdp_dpd_command_suicide(void *x)
{
t_pdp_dpd_command *c = (t_pdp_dpd_command *)x;
c->used = 0;
//post("command %x committed suicide %d", c, c->used);
}
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