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/*
* Pure Data Packet system implementation.
* Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
*
* 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 file contains misc communication methods */
#ifndef PDP_COMM_H
#define PDP_COMM_H
/* all symbols are C style */
#ifdef __cplusplus
extern "C"
{
#endif
/* pdp symbols */
t_symbol *pdp_sym_pdp(void);
t_symbol *pdp_sym_rro(void);
t_symbol *pdp_sym_rrw(void);
t_symbol *pdp_sym_prc(void);
t_symbol *pdp_sym_dpd(void);
t_symbol *pdp_sym_ins(void);
t_symbol *pdp_sym_acc(void);
/* utility methods */
/* if packet is valid, mark it unused and send it to an outlet */
void pdp_packet_pass_if_valid(t_outlet *outlet, int *packet);
/* if source packet is valid, release dest packet and move src->dest */
void pdp_packet_replace_if_valid(int *dpacket, int *spacket);
/* copy_ro if dest packet if invalid, else drop source
(don't copy) + send drop notif to pdp system
returns 1 if dropped, 0 if copied */
int pdp_packet_copy_ro_or_drop(int *dpacket, int spacket);
int pdp_packet_convert_ro_or_drop(int *dpacket, int spacket, t_pdp_symbol *type_template);
/* copy_rw if dest packit is invalid, else drop source
(don't copy) + send drop notif to pdp system
returns 1 if dropped, zero if copied */
int pdp_packet_copy_rw_or_drop(int *dpacket, int spacket);
int pdp_packet_convert_rw_or_drop(int *dpacket, int spacket, t_pdp_symbol *type_template);
#ifdef __cplusplus
}
#endif
#endif
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