//
// Internal debugging macros for libppd.
//
// Copyright © 2007-2018 by Apple Inc.
// Copyright © 1997-2005 by Easy Software Products.
//
// Licensed under Apache License v2.0.  See the file "LICENSE" for more
// information.
//

#ifndef _PPD_DEBUG_INTERNAL_H_
#  define _PPD_DEBUG_INTERNAL_H_


//
// Include necessary headers...
//

#  include "debug-private.h"


//
// C++ magic...
//

#  ifdef __cplusplus
extern "C" {
#  endif // __cplusplus


//
// The debug macros are used if you compile with DEBUG defined.
//
// Usage:
//
//   DEBUG_puts("string")
//   DEBUG_printf(("format string", arg, arg, ...));
//
// Note the extra parenthesis around the DEBUG_printf macro...
//
// Newlines are not required on the end of messages, as both add one when
// writing the output.
//
// If the first character is a digit, then it represents the "log level" of the
// message from 0 to 9.  The default level is 1.  The following defines the
// current levels we use:
//
// 0 = public APIs, other than value accessor functions
// 1 = return values for public APIs
// 2 = public value accessor APIs, progress for public APIs
// 3 = return values for value accessor APIs
// 4 = private APIs, progress for value accessor APIs
// 5 = return values for private APIs
// 6 = progress for private APIs
// 7 = static functions
// 8 = return values for static functions
// 9 = progress for static functions
//

#  ifdef DEBUG
#    include <assert.h>
#    define DEBUG_puts(x) _ppd_debug_puts(x)
#    define DEBUG_printf(x) _ppd_debug_printf x
#    define DEBUG_assert(x) assert(x)
#  else
#    define DEBUG_puts(x)
#    define DEBUG_printf(x)
#    define DEBUG_assert(x)
#  endif // DEBUG


//
// Prototypes...
//

#  ifdef DEBUG
extern int	_ppd_debug_fd;
extern int	_ppd_debug_level;
extern void	_ppd_debug_printf(const char *format, ...);
extern void	_ppd_debug_puts(const char *s);
#  endif // DEBUG

#  ifdef __cplusplus
}
#  endif // __cplusplus

#endif // !_PPD_DEBUG_INTERNAL_H_