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