Archipelago » blktap-utils

/*

 * Copyright (c) 2009, XenSource Inc.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are met:

 *     * Redistributions of source code must retain the above copyright

 *       notice, this list of conditions and the following disclaimer.

 *     * 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.

 *     * Neither the name of XenSource Inc. nor the names of its contributors

 *       may be used to endorse or promote products derived from this software

 *       without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER

 * 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.

 */

#ifndef __TAPDISK_SYSLOG_H__

#define __TAPDISK_SYSLOG_H__

#include <syslog.h>

#include <stdarg.h>

#include "scheduler.h"

typedef struct _td_syslog td_syslog_t;

#define TD_SYSLOG_PACKET_MAX  1024

struct _td_syslog_stats {

        unsigned long long count;

        unsigned long long bytes;

        unsigned long long xmits;

        unsigned long long fails;

        unsigned long long drops;

};

struct _td_syslog {

        char            *ident;

        int              facility;

        int              sock;

        event_id_t       event_id;

        void            *buf;

        size_t           bufsz;

        char            *msg;

        char            *ring;

        size_t           ringsz;

        size_t           prod;

        size_t           cons;

        int              oom;

        struct timeval   oom_tv;

        struct _td_syslog_stats stats;

};

int  tapdisk_syslog_open(td_syslog_t *,

                         const char *ident, int facility, size_t bufsz);

void tapdisk_syslog_close(td_syslog_t *);

void tapdisk_syslog_flush(td_syslog_t *);

void tapdisk_syslog_stats(td_syslog_t *, int prio);

int tapdisk_vsyslog(td_syslog_t *, int prio, const char *fmt, va_list ap);

int tapdisk_syslog(td_syslog_t *, int prio, const char *fmt, ...);

#endif /* __TAPDISK_SYSLOG_H__ */