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/*
* Copyright 2008-2013 Various Authors
* Copyright 2004-2005 Timo Hirvonen
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "debug.h"
#include "prog.h"
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <sys/time.h>
#if DEBUG > 1
static FILE *debug_stream = NULL;
#endif
void debug_init(void)
{
#if DEBUG > 1
char filename[512];
const char *dir = getenv("CMUS_HOME");
if (!dir || !dir[0]) {
dir = getenv("HOME");
if (!dir)
die("error: environment variable HOME not set\n");
}
snprintf(filename, sizeof(filename), "%s/cmus-debug.txt", dir);
debug_stream = fopen(filename, "w");
if (debug_stream == NULL)
die_errno("error opening `%s' for writing", filename);
#endif
}
/* This function must be defined even if debugging is disabled in the program
* because debugging might still be enabled in some plugin.
*/
void _debug_bug(const char *function, const char *fmt, ...)
{
const char *format = "\n%s: BUG: ";
va_list ap;
/* debug_stream exists only if debugging is enabled */
#if DEBUG > 1
fprintf(debug_stream, format, function);
va_start(ap, fmt);
vfprintf(debug_stream, fmt, ap);
va_end(ap);
#endif
/* always print bug message to stderr */
fprintf(stderr, format, function);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
exit(127);
}
void _debug_print(const char *function, const char *fmt, ...)
{
#if DEBUG > 1
va_list ap;
fprintf(debug_stream, "%s: ", function);
va_start(ap, fmt);
vfprintf(debug_stream, fmt, ap);
va_end(ap);
fflush(debug_stream);
#endif
}
uint64_t timer_get(void)
{
#if DEBUG > 1
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec * 1e6L + tv.tv_usec;
#else
return 0;
#endif
}
void timer_print(const char *what, uint64_t usec)
{
#if DEBUG > 1
uint64_t a = usec / 1e6;
uint64_t b = usec - a * 1e6;
_debug_print("TIMER", "%s: %11u.%06u\n", what, (unsigned int)a, (unsigned int)b);
#endif
}
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