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