openocd/src/helper/log.c

135 lines
3.6 KiB
C

/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "log.h"
#include "configuration.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
int debug_level = -1;
static FILE* log_output;
static char *log_strings[4] =
{
"Error: ",
"Warning:",
"Info: ",
"Debug: ",
};
void log_printf(enum log_levels level, const char *file, int line, const char *function, const char *format, ...)
{
va_list args;
char buffer[512];
if (level > debug_level)
return;
va_start(args, format);
vsnprintf(buffer, 512, format, args);
fprintf(log_output, "%s %s:%d %s(): %s\n", log_strings[level], file, line, function, buffer);
fflush(log_output);
va_end(args);
}
void short_log_printf(enum log_levels level, const char *format, ...)
{
va_list args;
char buffer[512];
if (level > debug_level)
return;
va_start(args, format);
vsnprintf(buffer, 512, format, args);
fprintf(log_output, "%s %s\n", log_strings[level], buffer);
fflush(log_output);
va_end(args);
}
/* change the current debug level on the fly
* 0: only ERRORS
* 1: + WARNINGS
* 2: + INFORMATIONAL MSGS
* 3: + DEBUG MSGS
*/
int handle_debug_level_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc == 0)
command_print(cmd_ctx, "debug_level: %i", debug_level);
if (argc > 0)
debug_level = strtoul(args[0], NULL, 0);
if (debug_level < 0)
debug_level = 0;
if (debug_level > 3)
debug_level = 3;
return ERROR_OK;
}
int handle_log_output_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc == 1)
{
FILE* file = fopen(args[0], "w");
if (file)
{
log_output = file;
}
}
return ERROR_OK;
}
int log_register_commands(struct command_context_s *cmd_ctx)
{
register_command(cmd_ctx, NULL, "log_output", handle_log_output_command,
COMMAND_ANY, "redirect logging to <file> (default: stderr)");
register_command(cmd_ctx, NULL, "debug_level", handle_debug_level_command,
COMMAND_ANY, "adjust debug level <0-3>");
return ERROR_OK;
}
int log_init(struct command_context_s *cmd_ctx)
{
/* set defaults for daemon configuration, if not set by cmdline or cfgfile */
if (debug_level == -1)
debug_level = LOG_INFO;
if (log_output == NULL)
{
log_output = stderr;
}
return ERROR_OK;
}