/usr/include/libroar/vio.h is in libroar-dev 1.0~beta11-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2014
*
* This file is part of libroar a part of RoarAudio,
* a cross-platform sound system for both, home and professional use.
* See README for details.
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3
* as published by the Free Software Foundation.
*
* libroar 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 software; see the file COPYING. If not, write to
* the Free Software Foundation, 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* NOTE for everyone want's to change something and send patches:
* read README and HACKING! There a addition information on
* the license of this document you need to read before you send
* any patches.
*
* NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc
* or libpulse*:
* The libs libroaresd, libroararts and libroarpulse link this lib
* and are therefore GPL. Because of this it may be illigal to use
* them with any software that uses libesd, libartsc or libpulse*.
*/
#ifndef _LIBROARVIO_H_
#define _LIBROARVIO_H_
#include "libroar.h"
// some defines:
#define ROAR_VIOF_EXEC O_EXEC
#define ROAR_VIOF_READ O_RDONLY
#define ROAR_VIOF_WRITE O_WRONLY
#define ROAR_VIOF_READWRITE O_RDWR
#define ROAR_VIOF_SEARCH O_SEARCH
#define ROAR_VIOF_LISTEN (-"") /* compiler error as long as there is no O_LISTEN */
#define ROAR_VIOF_CREAT O_CREAT
#define ROAR_VIOF_TRUNC O_TRUNC
#define ROAR_VIOF_APPEND O_APPEND
#ifndef ROAR_TARGET_WIN32
#define ROAR_VIOF_NONBLOCK O_NONBLOCK
#else
#define ROAR_VIOF_NONBLOCK 0
#endif
#define ROAR_VIO_FLAGS_NONE 0x00000000UL
#define ROAR_VIO_FLAGS_FREESELF 0x00000001UL /* Free the VIO object */
struct roar_connection;
// sys io:
typedef int32_t roar_vio_ctl_t;
typedef int_least64_t roar_off_t;
struct roar_vio_calls {
size_t refc;
uint32_t flags;
void *inst;
ssize_t (*read )(struct roar_vio_calls * vio, void *buf, size_t count);
ssize_t (*write )(struct roar_vio_calls * vio, void *buf, size_t count);
roar_off_t (*lseek )(struct roar_vio_calls * vio, roar_off_t offset, int whence);
int (*sync )(struct roar_vio_calls * vio);
int (*ctl )(struct roar_vio_calls * vio, roar_vio_ctl_t cmd, void * data);
int (*close )(struct roar_vio_calls * vio);
};
int roar_vio_clear_calls (struct roar_vio_calls * calls);
ssize_t roar_vio_read (struct roar_vio_calls * vio, void *buf, size_t count) _LIBROAR_ATTR_USE_RESULT _LIBROAR_ATTR_NONNULL_ALL;
ssize_t roar_vio_write (struct roar_vio_calls * vio, void *buf, size_t count) _LIBROAR_ATTR_USE_RESULT _LIBROAR_ATTR_NONNULL_ALL;
roar_off_t roar_vio_lseek (struct roar_vio_calls * vio, roar_off_t offset, int whence) _LIBROAR_ATTR_USE_RESULT _LIBROAR_ATTR_NONNULL_ALL;
int roar_vio_nonblock(struct roar_vio_calls * vio, int state) _LIBROAR_ATTR_USE_RESULT _LIBROAR_ATTR_NONNULL_ALL;
int roar_vio_sync (struct roar_vio_calls * vio) _LIBROAR_ATTR_NONNULL_ALL;
int roar_vio_ctl (struct roar_vio_calls * vio, roar_vio_ctl_t cmd, void * data) _LIBROAR_ATTR_USE_RESULT _LIBROAR_ATTR_NONNULL(1);
#define roar_vio_close(x) roar_vio_unref((x))
int roar_vio_ref (struct roar_vio_calls * vio) _LIBROAR_ATTR_NONNULL_ALL;
int roar_vio_unref (struct roar_vio_calls * vio) _LIBROAR_ATTR_NONNULL_ALL;
// special commands:
int roar_vio_accept (struct roar_vio_calls * calls, struct roar_vio_calls * dst) _LIBROAR_ATTR_USE_RESULT _LIBROAR_ATTR_NONNULL_ALL;
int roar_vio_shutdown(struct roar_vio_calls * vio, int how) _LIBROAR_ATTR_NONNULL_ALL;
// converters:
int roar_vio_open_fh (struct roar_vio_calls * calls, int fh) _LIBROAR_ATTR_NONNULL_ALL;
int roar_vio_open_fh_socket(struct roar_vio_calls * calls, int fh) _LIBROAR_ATTR_NONNULL_ALL;
int roar_vio_open_socket (struct roar_vio_calls * calls, const char * host, int port) _LIBROAR_ATTR_USE_RESULT _LIBROAR_ATTR_NONNULL_ALL;
int roar_vio_open_socket_listen(struct roar_vio_calls * calls, int type, const char * host, int port) _LIBROAR_ATTR_USE_RESULT _LIBROAR_ATTR_NONNULL_ALL;
int roar_vio_simple_stream (struct roar_vio_calls * calls,
uint32_t rate, uint32_t channels, uint32_t bits, uint32_t codec,
const char * server, int dir, const char * name, int mixer);
int roar_vio_simple_new_stream_obj (struct roar_vio_calls * calls,
struct roar_connection * con,
struct roar_stream * s,
uint32_t rate, uint32_t channels, uint32_t bits, uint32_t codec,
int dir, int mixer);
// possible VIOs:
// basic
ssize_t roar_vio_basic_read (struct roar_vio_calls * vio, void *buf, size_t count);
ssize_t roar_vio_basic_write (struct roar_vio_calls * vio, void *buf, size_t count);
roar_off_t roar_vio_basic_lseek (struct roar_vio_calls * vio, roar_off_t offset, int whence);
int roar_vio_basic_sync (struct roar_vio_calls * vio);
int roar_vio_basic_ctl (struct roar_vio_calls * vio, roar_vio_ctl_t cmd, void * data);
int roar_vio_basic_close (struct roar_vio_calls * vio);
// null
// this is a read and write in one!
ssize_t roar_vio_null_rw (struct roar_vio_calls * vio, void *buf, size_t count);
int roar_vio_null_sync (struct roar_vio_calls * vio);
// pass
int roar_vio_open_pass (struct roar_vio_calls * calls, struct roar_vio_calls * dst);
ssize_t roar_vio_pass_read (struct roar_vio_calls * vio, void *buf, size_t count);
ssize_t roar_vio_pass_write (struct roar_vio_calls * vio, void *buf, size_t count);
roar_off_t roar_vio_pass_lseek (struct roar_vio_calls * vio, roar_off_t offset, int whence);
int roar_vio_pass_sync (struct roar_vio_calls * vio);
int roar_vio_pass_ctl (struct roar_vio_calls * vio, roar_vio_ctl_t cmd, void * data);
int roar_vio_pass_close (struct roar_vio_calls * vio);
// re-read/write
int roar_vio_open_re (struct roar_vio_calls * calls, struct roar_vio_calls * dst);
ssize_t roar_vio_re_read (struct roar_vio_calls * vio, void *buf, size_t count);
ssize_t roar_vio_re_write(struct roar_vio_calls * vio, void *buf, size_t count);
roar_off_t roar_vio_re_lseek(struct roar_vio_calls * vio, roar_off_t offset, int whence);
#endif
//ll
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