klib_log.c File Reference

Implementation of klib logging functions. More...

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <ctype.h>
#include "klib_log.h"
#include "klib_object.h"
#include "klib_string.h"
#include "klib_error.h"

Functions
void	klib_log_set_output_callback (klib_Log_OutputProc proc, void *data)
	Set the function that will be called when the logger has formatted data.
void	klib_log_set_level (int l)
	Set the global log level.
void	klib_log (int level, const char *fmt,...)
	Log a message at the specified level, format as for printf()
int	klib_log_get_level (void)
	Get the global log level.
void	klib_log_error (const klib_Error *error)
const char *	klib_log_level_to_string (int level)
Variables
int	klib_log_level = 0
	Global variable to set overall log verbosity.

---

Detailed Description

Implementation of klib logging functions.

---

Function Documentation

void klib_log	(	int	level,
		const char *	fmt,
			...
	)

Log a message at the specified level, format as for printf()

  {
  if (level > klib_log_level) return;

  va_list ap;
  va_start (ap, fmt);
  klib_String *sss = klib_string_new_empty();
  klib_string_vprintf (sss, fmt, ap);
  va_end (ap);

  if (output_proc)
    output_proc (level, sss->str, output_proc_data);
  else
    printf ("%s\n", sss->str);

  klib_object_unref ((klib_Object *)sss);
  }

void klib_log_error

(

const klib_Error *

error

)

  {
  klib_String *s = klib_error_full_message (error);
  klib_log (KLIB_LOG_ERROR, s->str);
  klib_object_unref ((klib_Object *)s);
  }

int klib_log_get_level

(

void

)

Get the global log level.

  {
  return klib_log_level;
  }

const char* klib_log_level_to_string

(

int

level

)

  {
  switch (level)
    {
    case KLIB_LOG_ERROR: return "error";
    case KLIB_LOG_WARNING: return "warning";
    case KLIB_LOG_INFO: return "info";
    }
  return "trace";
  }

void klib_log_set_level

(

int

l

)

Set the global log level.

  {
  klib_log_level = l;
  }

void klib_log_set_output_callback	(	klib_Log_OutputProc	proc,
		void *	data
	)

Set the function that will be called when the logger has formatted data.

Defaults to writing to stderr

  {
  output_proc = proc;
  output_proc_data = data;
  }

---

Variable Documentation

int klib_log_level = 0

Global variable to set overall log verbosity.

Callers should use klib_log_set_level and klib_log_get_level