/*

 * LIBOIL - Library of Optimized Inner Loops

 * Copyright (c) 2003,2004 David A. Schleef <ds@schleef.org>

 * All rights reserved.

 *

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

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

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

 * 2. 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.

 * 

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.

 */

//Portions Copyright (c)  2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <liboil/liboilfunction.h>

#include <liboil/liboildebug.h>

#include <stdio.h>

#include <string.h>

#include <stdarg.h>

#include <stdlib.h>

/**

 * SECTION:liboildebug

 * @title: Debug

 * @short_description: Printing and formatting debug information

 */

static void oil_debug_print_valist (int level, const char *file,

    const char *func, int line, const char *format, va_list args);

static int _oil_debug_level = OIL_DEBUG_ERROR;

static OilDebugPrintFunc _oil_debug_print_func = oil_debug_print_valist;

#ifdef __SYMBIAN32__

#endif

void

_oil_debug_init(void)

{

  const char *envvar;

  envvar = getenv ("OIL_DEBUG");

  if (envvar != NULL) {

    char *end = NULL;

    int level;

    level = strtol (envvar, &end, 0);

    if (end > envvar) {

      _oil_debug_level = level;

    }

  }

  OIL_INFO ("liboil-" VERSION " debug init");

}

static void

oil_debug_print_valist (int level, const char *file, const char *func,

        int line, const char *format, va_list args)

{

  static const char *level_names[] = { "NONE", "ERROR", "WARNING", "INFO",

    "DEBUG", "LOG" };

  const char *level_name = "unknown";

  if (level > _oil_debug_level) return;

  if(level>=OIL_DEBUG_NONE && level<=OIL_DEBUG_LOG){

    level_name = level_names[level];

  }

  fprintf (stderr, "OIL: %s %s %d: %s(): ", level_name, file, line, func);

  vfprintf (stderr, format, args);

  fprintf (stderr, "\n");

}

#ifdef __SYMBIAN32__

EXPORT_C 

#endif

void

oil_debug_print (int level, const char *file, const char *func,

        int line, const char *format, ...)

{

  va_list var_args;

  va_start (var_args, format);

  _oil_debug_print_func (level, file, func, line, format, var_args);

  va_end (var_args);

}

/**

 * oil_debug_get_level:

 *

 * Gets the current debug level.

 *

 * Returns: the current debug level

 */

 #ifdef __SYMBIAN32__

 EXPORT_C

#endif

int

oil_debug_get_level (void)

{

  return _oil_debug_level;

}

/**

 * oil_debug_set_level:

 * @level: the new debug level

 *

 * Sets the current debug level.

 */

#ifdef __SYMBIAN32__

 EXPORT_C

#endif 

void

oil_debug_set_level (int level)

{

  _oil_debug_level = level;

}

/**

 * oil_debug_set_print_function:

 * @func:

 *

 * Sets the function to call when outputting debugging information.

 * A value of NULL for @func will restore the default handler,

 * which prints debugging information to stderr.

 */

#ifdef __SYMBIAN32__

 EXPORT_C

#endif

void

oil_debug_set_print_function (OilDebugPrintFunc func)

{

  if (func) {

    _oil_debug_print_func = func;

  } else {

    _oil_debug_print_func = oil_debug_print_valist;

  }

}