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/* $NetBSD: ctrace.c,v 1.20 2009/01/17 15:25:36 christos Exp $ */
/*-
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "@(#)ctrace.c 8.2 (Berkeley) 10/5/93";
#else
__RCSID("$NetBSD: ctrace.c,v 1.20 2009/01/17 15:25:36 christos Exp $");
#endif
#endif /* not lint */
#ifdef DEBUG
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <string.h>
#include "curses.h"
#include "curses_private.h"
static FILE *tracefp = NULL; /* Curses debugging file descriptor. */
static int tracemask; /* Areas of trace output we want. */
static int init_done = 0;
void
__CTRACE_init()
{
char *tf, *tm;
tm = getenv("CURSES_TRACE_MASK");
if (tm == NULL)
tracemask = __CTRACE_ALL;
else {
tracemask = (int) strtol(tm, NULL, 0);
}
if (tracemask < 0)
tracemask = (0 - tracemask) ^ __CTRACE_ALL;
if (tracemask == 0)
return;
tf = getenv("CURSES_TRACE_FILE");
if ((tf != NULL) && !strcmp( tf, "<none>"))
tf = NULL;
if (tf != NULL)
tracefp = fopen(tf, "w");
init_done = 1;
__CTRACE(__CTRACE_ALL, "Trace mask: 0x%08x\n", tracemask);
}
void
__CTRACE(int area, const char *fmt,...)
{
struct timeval tv;
static int seencr = 1;
va_list ap;
if (!init_done)
__CTRACE_init();
if (tracefp == NULL || !(tracemask & area)) {
return;
}
gettimeofday(&tv, NULL);
if (seencr && (tracemask & __CTRACE_TSTAMP)) {
gettimeofday(&tv, NULL);
(void) fprintf(tracefp, "%llu.%06lu: ",
(long long)tv.tv_sec, (long)tv.tv_usec);
}
va_start(ap, fmt);
(void) vfprintf(tracefp, fmt, ap);
seencr = (strchr(fmt, '\n') != NULL);
va_end(ap);
(void) fflush(tracefp);
}
#else
/* this kills the empty translation unit message from lint... */
void
__cursesi_make_lint_shut_up_if_debug_not_defined(void);
void
__cursesi_make_lint_shut_up_if_debug_not_defined(void)
{
return;
}
#endif
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