mirror of
https://github.com/ericonr/sndio.git
synced 2024-02-18 04:45:21 -06:00
76 lines
3.0 KiB
C
76 lines
3.0 KiB
C
/* $OpenBSD$ */
|
|
/*
|
|
* Copyright (c) 2008 Alexandre Ratchov <alex@caoua.org>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
#ifndef SOCK_H
|
|
#define SOCK_H
|
|
|
|
#include "amsg.h"
|
|
#include "aparams.h"
|
|
#include "pipe.h"
|
|
|
|
struct opt;
|
|
|
|
struct sock {
|
|
struct pipe pipe;
|
|
/*
|
|
* Socket and protocol specific stuff, mainly used
|
|
* to decode/encode messages in the stream.
|
|
*/
|
|
struct amsg rmsg, wmsg; /* messages being sent/received */
|
|
unsigned int wmax; /* max frames we're allowed to write */
|
|
unsigned int rmax; /* max frames we're allowed to read */
|
|
unsigned int rtodo; /* input bytes not read yet */
|
|
unsigned int wtodo; /* output bytes not written yet */
|
|
#define SOCK_RDATA 0 /* data chunk being read */
|
|
#define SOCK_RMSG 1 /* amsg query being processed */
|
|
#define SOCK_RRET 2 /* amsg reply being returned */
|
|
unsigned int rstate; /* state of the read-end FSM */
|
|
#define SOCK_WIDLE 0 /* nothing to do */
|
|
#define SOCK_WMSG 1 /* amsg being written */
|
|
#define SOCK_WDATA 2 /* data chunk being written */
|
|
unsigned int wstate; /* state of the write-end FSM */
|
|
#define SOCK_AUTH 0 /* waiting for AUTH message */
|
|
#define SOCK_HELLO 1 /* waiting for HELLO message */
|
|
#define SOCK_INIT 2 /* parameter negotiation */
|
|
#define SOCK_START 3 /* filling play buffers */
|
|
#define SOCK_READY 4 /* play buffers full */
|
|
#define SOCK_RUN 5 /* attached to the mix / sub */
|
|
#define SOCK_STOP 6 /* draining rec buffers */
|
|
#define SOCK_MIDI 7 /* raw byte stream (midi) */
|
|
unsigned int pstate; /* one of the above */
|
|
unsigned int mode; /* bitmask of MODE_XXX */
|
|
struct aparams rpar; /* read (ie play) parameters */
|
|
struct aparams wpar; /* write (ie rec) parameters */
|
|
int delta; /* pos. change to send */
|
|
int tickpending; /* delta waiting to be transmitted */
|
|
int fillpending; /* pending buffer fill request */
|
|
unsigned int walign; /* align data packets to this */
|
|
unsigned int bufsz; /* total buffer size */
|
|
unsigned int round; /* block size */
|
|
unsigned int xrun; /* one of AMSG_IGNORE, ... */
|
|
int vol; /* requested volume */
|
|
int lastvol; /* last volume */
|
|
int slot; /* mixer ctl slot number */
|
|
struct opt *opt; /* "subdevice" definition */
|
|
struct dev *dev; /* actual hardware device */
|
|
char who[12]; /* label, mostly for debugging */
|
|
};
|
|
|
|
struct sock *sock_new(struct fileops *, int fd);
|
|
extern struct fileops sock_ops;
|
|
|
|
#endif /* !defined(SOCK_H) */
|