From b694c274836ac8b04d644711ac324eac2e9ab83e Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Fri, 16 Dec 2005 01:05:40 +0000 Subject: checking in pdp 0.12.4 from http://zwizwa.fartit.com/pd/pdp/pdp-0.12.4.tar.gz svn path=/trunk/externals/pdp/; revision=4232 --- system/kernel/pdp_dpd_command.c | 87 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 system/kernel/pdp_dpd_command.c (limited to 'system/kernel/pdp_dpd_command.c') diff --git a/system/kernel/pdp_dpd_command.c b/system/kernel/pdp_dpd_command.c new file mode 100644 index 0000000..d812cf2 --- /dev/null +++ b/system/kernel/pdp_dpd_command.c @@ -0,0 +1,87 @@ + +/* + * Pure Data Packet header file. DPD command class + * Copyright (c) by Tom Schouten + * + * 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); +} + + + + -- cgit v1.2.1