3 fast inter-user-process single-reader/single-writer channels
4 using a modified version of jack ringbuffers and memory-mapped files.
6 This file is part of a program that implements a Software-Defined Radio.
8 Copyright (C) 2004 by Frank Brickle, AB2KT and Bob McGwier, N4HY
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 The authors can be reached by email at
32 The DTTS Microwave Society
40 #include <sys/types.h>
41 #include <sys/param.h>
55 #include <datatypes.h>
63 size_t buf, rib, tot, tru;
75 extern size_t putChan(Chan c, char *data, size_t size);
76 extern size_t getChan(Chan c, char *data, size_t size);
77 extern BOOLEAN putChan_nowait(Chan c, char *data, size_t size);
78 extern BOOLEAN getChan_nowait(Chan c, char *data, size_t size);
79 // NB want will be rounded up to a power of 2
80 extern Chan openChan(char *path, size_t want);
81 extern void closeChan(Chan c);