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/*
* Debugging library routines
*/
#if defined(ENABLE_LIBYAHOO_DEBUG)
#if defined(HAVE_CONFIG_H)
#include "config.h"
#else
#define HAVE_STDARG_H
#define HAVE_STRING_H
#endif
#include "debug.h"
#include <stdlib.h>
#include <stdio.h>
#if defined(HAVE_STDARG_H)
#include <stdarg.h>
#endif
#if defined(HAVE_STRING_H)
#include <string.h>
#elif defined(HAVE_STRINGS_H)
#include <strings.h>
#endif
static FILE *debugfile = stdout;
static char *DBG_EnabledKeys[128] =
{NULL}; /* should be more than enough */
static int DBG_MaxEnabledKey = -1;
/* these routines currently do a really inneficient linear search,
but it's not like they need to be really fast - they are just for
debugging purposes */
int DBG_Open(char *file)
{
if (debugfile != stdout)
{
fclose(debugfile);
debugfile = NULL;
}
if (!file)
{
fprintf(stderr, "DBG_Open Error: File is null, using stdout.\n");
debugfile = stdout;
return 1;
}
if ((debugfile = fopen(file, "a")) == NULL)
{
fprintf(stderr, "DBG_Open Error: Couldn't open output file.\n");
fprintf(stderr, " Falling back to stdout.\n");
debugfile = stdout;
return 1;
}
return 0;
}
int DBG_Disable(char *key)
{
int i;
if (!key)
{
fprintf(stderr, "DBG_Disable Error: key is null.\n");
return 1;
}
for (i = 0; i <= DBG_MaxEnabledKey; i++)
{
if (DBG_EnabledKeys[i] && !strcmp(DBG_EnabledKeys[i], key))
{
free(DBG_EnabledKeys[i]);
DBG_EnabledKeys[i] = NULL;
return 0;
}
}
return 1;
}
int DBG_Enable(char *key)
{
int i;
if (!key)
{
fprintf(stderr, "DBG_Enable Error: key is null.\n");
return 1;
}
for (i = 0; i <= DBG_MaxEnabledKey; i++)
{
if (DBG_EnabledKeys[i] && !strcmp(DBG_EnabledKeys[i], key))
{
return 0; /* already enabled */
}
}
DBG_EnabledKeys[DBG_MaxEnabledKey + 1] = NULL;
for (i = 0; i <= DBG_MaxEnabledKey + 1; i++)
{
if (!DBG_EnabledKeys[i])
{
DBG_EnabledKeys[i] = strdup(key);
if (i > DBG_MaxEnabledKey)
{
DBG_MaxEnabledKey = i;
}
return 0; /* already enabled */
}
}
return 0;
}
int DBG_Print(char *key, char *format,...)
{
va_list args;
if (!key)
{
fprintf(stderr, "DBG_Print Error: key is null.\n");
return 1;
}
if (!format)
{
fprintf(stderr, "DBG_Print Error: format is null.\n");
return 1;
}
if (DBG_IsEnabled(key) || DBG_IsEnabled("all"))
{
va_start(args, format);
vfprintf(debugfile, format, args);
va_end(args);
fflush(debugfile);
}
return 0;
}
int DBG_Close(void)
{
if (debugfile && debugfile != stdout)
{
fclose(debugfile);
debugfile = NULL;
}
return 0;
}
int DBG_IsEnabled(char *key)
{
int i;
for (i = 0; i <= DBG_MaxEnabledKey; i++)
{
if (!strcmp(DBG_EnabledKeys[i], key))
{
return 1; /* is enabled */
}
}
return 0;
}
#else
/* Debugging is not enabled, so do an inline routines that do nothing */
/* Hopefully the compiler will completely optimize these routines away */
inline int DBG_Open(char *file)
{
return 0;
}
inline int DBG_Disable(char *key)
{
return 0;
}
inline int DBG_Enable(char *key)
{
return 0;
}
inline int DBG_Print(char *key, char *format,...)
{
return 0;
}
inline int DBG_Close(void)
{
return 0;
}
inline int DBG_IsEnabled(char *key)
{
return 0;
}
#endif
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