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