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/**
* Navit, a modular navigation system.
* Copyright (C) 2005-2008 Navit Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <glib.h>
#include "file.h"
#include "item.h"
#include "debug.h"
int debug_level=0,segv_level=0;
static int dummy;
static GHashTable *debug_hash;
static char *gdb_program;
static FILE *debug_fp;
static void sigsegv(int sig)
{
#if defined(_WIN32) || defined(__CEGCC__)
#else
char buffer[256];
if (segv_level > 1)
sprintf(buffer, "gdb -ex bt %s %d", gdb_program, getpid());
else
sprintf(buffer, "gdb -ex bt -ex detach -ex quit %s %d", gdb_program, getpid());
system(buffer);
exit(1);
#endif
}
void
debug_init(const char *program_name)
{
gdb_program=program_name;
signal(SIGSEGV, sigsegv);
debug_hash=g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL);
debug_fp = stderr;
}
static void
debug_update_level(gpointer key, gpointer value, gpointer user_data)
{
if (debug_level < (int) value)
debug_level=(int) value;
}
void
debug_level_set(const char *name, int level)
{
debug_level=0;
if (strcmp(name,"segv")) {
g_hash_table_insert(debug_hash, g_strdup(name), (gpointer) level);
g_hash_table_foreach(debug_hash, debug_update_level, NULL);
} else {
segv_level=level;
if (segv_level)
signal(SIGSEGV, sigsegv);
else
signal(SIGSEGV, NULL);
}
}
struct debug *
debug_new(struct attr *parent, struct attr **attrs)
{
struct attr *name,*level;
name=attr_search(attrs, NULL, attr_name);
level=attr_search(attrs, NULL, attr_level);
if (!name || !level)
return NULL;
debug_level_set(name->u.str, level->u.num);
return (struct debug *)&dummy;
}
int
debug_level_get(const char *name)
{
if (!debug_hash)
return 0;
return (int)(g_hash_table_lookup(debug_hash, name));
}
void
debug_vprintf(int level, const char *module, const int mlen, const char *function, const int flen, int prefix, const char *fmt, va_list ap)
{
char buffer[mlen+flen+3];
FILE *fp=debug_fp;
sprintf(buffer, "%s:%s", module, function);
if (debug_level_get(module) >= level || debug_level_get(buffer) >= level) {
if (! fp)
fp = stderr;
if (prefix)
fprintf(fp,"%s:",buffer);
vfprintf(fp,fmt, ap);
fflush(fp);
}
}
void
debug_printf(int level, const char *module, const int mlen,const char *function, const int flen, int prefix, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
debug_vprintf(level, module, mlen, function, flen, prefix, fmt, ap);
va_end(ap);
}
void
debug_assert_fail(char *module, const int mlen,const char *function, const int flen, char *file, int line, char *expr)
{
debug_printf(0,module,mlen,function,flen,1,"%s:%d assertion failed:%s\n", file, line, expr);
abort();
}
void
debug_destroy(void)
{
if (!debug_fp)
return;
if (debug_fp == stderr || debug_fp == stdout)
return;
fclose(debug_fp);
debug_fp = NULL;
}
void debug_set_logfile(const char *path)
{
FILE *fp;
fp = fopen(path, "a");
if (fp) {
debug_destroy();
debug_fp = fp;
fprintf(debug_fp, "Navit log started\n");
fflush(debug_fp);
}
}
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