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/*
* libzvbi -- Useful macros
*
* Copyright (C) 2002, 2003, 2004, 2007 Michael H. Schimek
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*/
/* $Id: macros.h,v 1.12 2013-07-10 23:11:18 mschimek Exp $ */
#ifndef __ZVBI_MACROS_H__
#define __ZVBI_MACROS_H__
#ifdef __cplusplus
# define VBI_BEGIN_DECLS extern "C" {
# define VBI_END_DECLS }
#else
# define VBI_BEGIN_DECLS
# define VBI_END_DECLS
#endif
VBI_BEGIN_DECLS
/* Public */
#if __GNUC__ >= 4
# define _vbi_sentinel __attribute__ ((__sentinel__(0)))
# define _vbi_deprecated __attribute__ ((__deprecated__))
#else
# define _vbi_sentinel
# define _vbi_deprecated
# define __restrict__
#endif
#if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ >= 4
# define _vbi_nonnull(params) __attribute__ ((__nonnull__ params))
# define _vbi_format(params) __attribute__ ((__format__ params))
#else
# define _vbi_nonnull(params)
# define _vbi_format(params)
#endif
#if __GNUC__ >= 3
# define _vbi_pure __attribute__ ((__pure__))
# define _vbi_alloc __attribute__ ((__malloc__))
#else
# define _vbi_pure
# define _vbi_alloc
#endif
#if __GNUC__ >= 2
# define _vbi_unused __attribute__ ((__unused__))
# define _vbi_const __attribute__ ((__const__))
# define _vbi_inline static __inline__
#else
# define _vbi_unused
# define _vbi_const
# define _vbi_inline static
#endif
/**
* @ingroup Basic
* @name Boolean type
* @{
*/
#ifndef TRUE
# define TRUE 1
#endif
#ifndef FALSE
# define FALSE 0
#endif
typedef int vbi_bool;
/** @} */
#ifndef NULL
# ifdef __cplusplus
# define NULL (0L)
# else
# define NULL ((void *) 0)
# endif
#endif
/* XXX Document me - for variadic funcs. */
#define VBI_END ((void *) 0)
#if 0
typedef void
vbi_lock_fn (void * user_data);
typedef void
vbi_unlock_fn (void * user_data);
#endif
/**
* @ingroup Basic
* @{
*/
typedef enum {
/** External error causes, for example lack of memory. */
VBI_LOG_ERROR = 1 << 3,
/**
* Invalid parameters and similar problems which suggest
* a bug in the application using the library.
*/
VBI_LOG_WARNING = 1 << 4,
/**
* Causes of possibly undesired results, for example when a
* data service cannot be decoded with the current video
* standard setting.
*/
VBI_LOG_NOTICE = 1 << 5,
/** Progress messages. */
VBI_LOG_INFO = 1 << 6,
/** Information useful to debug the library. */
VBI_LOG_DEBUG = 1 << 7,
/** Driver responses (strace). Not implemented yet. */
VBI_LOG_DRIVER = 1 << 8,
/** More detailed debugging information. */
VBI_LOG_DEBUG2 = 1 << 9,
VBI_LOG_DEBUG3 = 1 << 10
} vbi_log_mask;
typedef void
vbi_log_fn (vbi_log_mask level,
const char * context,
const char * message,
void * user_data);
extern vbi_log_fn vbi_log_on_stderr;
/** @} */
/* Private */
typedef struct {
vbi_log_fn * fn;
void * user_data;
vbi_log_mask mask;
} _vbi_log_hook;
VBI_END_DECLS
#endif /* __ZVBI_MACROS_H__ */
/*
Local variables:
c-set-style: K&R
c-basic-offset: 8
End:
*/
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