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ossp-pkg/l2/l2_p.h 1.8
/*
**  L2 - OSSP Logging Library
**  Copyright (c) 2001 Cable & Wireless Deutschland GmbH
**
**  This file is part of OSSP L2, a flexible logging library which
**  can be found at http://www.ossp.org/pkg/l2/.
**
**  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.
**
**  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
**  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.
**
**  l2_p.h: private C API
*/

#ifndef __L2_P_H__
#define __L2_P_H__

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>

#define L2_MAX_MSGSIZE    4096
#define L2_MAX_CHANNELS    128
#define L2_MAX_FORMATTERS  128

typedef enum {
    L2_CHSTATE_CREATED,
    L2_CHSTATE_OPENED
} l2_chstate_t;

struct l2_channel_st {
    l2_chstate_t  state;
    l2_channel_t *downstream;
    l2_context_t  context;
    l2_handler_t  handler;
};

typedef struct l2_format_st {
    char *name;
    void *context;
    l2_formatter_t callback;
} l2_format_t;

struct l2_stream_st {
    unsigned int  levelmask;
    char          message[L2_MAX_MSGSIZE];
    l2_channel_t *channels[L2_MAX_CHANNELS];
    l2_format_t   formatters[L2_MAX_FORMATTERS];
};

/* variable argument handling taking care on argument passing conventions */
#define _va_type_recv_char    int
#define _va_type_cast_char    char
#define _va_type_recv_short   int
#define _va_type_cast_short   short
#define _va_type_recv_int     int
#define _va_type_cast_int     int
#define _va_type_recv_long    long
#define _va_type_cast_long    long
#define _va_type_recv_float   double
#define _va_type_cast_float   double
#define _va_type_recv_double  double
#define _va_type_cast_double  double
#define _va_type_recv_charptr void *
#define _va_type_cast_charptr char *
#define _va_type_recv_voidptr void *
#define _va_type_cast_voidptr void *
#define va_get(ap,type) (_va_type_cast_##type)va_arg((ap),_va_type_recv_##type)

#endif /* __L2_P_H__ */


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