freebsd-skq/lib/libc/include/nscachedcli.h
Pedro F. Giffuni d915a14ef0 libc: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-25 17:12:48 +00:00

110 lines
3.8 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2004 Michael Bushkov <bushman@rsu.ru>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef __NS_CACHED_CLI_H__
#define __NS_CACHED_CLI_H__
/*
* This file contains API for working with caching daemon
*/
enum comm_element_t {
CET_UNDEFINED = 0,
CET_WRITE_REQUEST = 1,
CET_WRITE_RESPONSE = 2,
CET_READ_REQUEST = 3,
CET_READ_RESPONSE = 4,
CET_TRANSFORM_REQUEST = 5,
CET_TRANSFORM_RESPONSE = 6,
CET_MP_WRITE_SESSION_REQUEST = 7,
CET_MP_WRITE_SESSION_RESPONSE = 8,
CET_MP_WRITE_SESSION_WRITE_REQUEST = 9,
CET_MP_WRITE_SESSION_WRITE_RESPONSE = 10,
CET_MP_WRITE_SESSION_CLOSE_NOTIFICATION = 11,
CET_MP_WRITE_SESSION_ABANDON_NOTIFICATION = 12,
CET_MP_READ_SESSION_REQUEST = 13,
CET_MP_READ_SESSION_RESPONSE = 14,
CET_MP_READ_SESSION_READ_REQUEST = 15,
CET_MP_READ_SESSION_READ_RESPONSE = 16,
CET_MP_READ_SESSION_CLOSE_NOTIFICATION = 17
};
struct cached_connection_params {
char *socket_path;
struct timeval timeout;
};
struct cached_connection_ {
int sockfd;
int read_queue;
int write_queue;
int mp_flag; /* shows if the connection is used for
* multipart operations */
};
/* simple abstractions for not to write "struct" every time */
typedef struct cached_connection_ *cached_connection;
typedef struct cached_connection_ *cached_mp_write_session;
typedef struct cached_connection_ *cached_mp_read_session;
#define INVALID_CACHED_CONNECTION (NULL)
#define INVALID_CACHED_MP_WRITE_SESSION (NULL)
#define INVALID_CACHED_MP_READ_SESSION (NULL)
__BEGIN_DECLS
/* initialization/destruction routines */
extern cached_connection __open_cached_connection(
struct cached_connection_params const *);
extern void __close_cached_connection(cached_connection);
/* simple read/write operations */
extern int __cached_write(cached_connection, const char *, const char *,
size_t, const char *, size_t);
extern int __cached_read(cached_connection, const char *, const char *,
size_t, char *, size_t *);
/* multipart read/write operations */
extern cached_mp_write_session __open_cached_mp_write_session(
struct cached_connection_params const *, const char *);
extern int __cached_mp_write(cached_mp_write_session, const char *, size_t);
extern int __abandon_cached_mp_write_session(cached_mp_write_session);
extern int __close_cached_mp_write_session(cached_mp_write_session);
extern cached_mp_read_session __open_cached_mp_read_session(
struct cached_connection_params const *, const char *);
extern int __cached_mp_read(cached_mp_read_session, char *, size_t *);
extern int __close_cached_mp_read_session(cached_mp_read_session);
__END_DECLS
#endif