/*

  * 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;

   }

 }