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ctrace.c revision 1.13 
      1 /*	$NetBSD: ctrace.c,v 1.13 2002/06/26 18:14:02 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #ifndef lint
     38 #if 0
     39 static char sccsid[] = "@(#)ctrace.c	8.2 (Berkeley) 10/5/93";
     40 #else
     41 __RCSID("$NetBSD: ctrace.c,v 1.13 2002/06/26 18:14:02 christos Exp $");
     42 #endif
     43 #endif				/* not lint */
     44 
     45 #ifdef DEBUG
     46 #include <stdarg.h>
     47 #include <stdio.h>
     48 
     49 #include <sys/time.h>
     50 #include <string.h>
     51 #include <stdlib.h>
     52 
     53 #include "curses.h"
     54 #include "curses_private.h"
     55 
     56 #ifndef TFILE
     57 #define	TFILE	"__curses.out"
     58 #endif
     59 
     60 static FILE *tracefp;		/* Curses debugging file descriptor. */
     61 
     62 void
     63 __CTRACE(const char *fmt,...)
     64 {
     65 	struct timeval tv;
     66         static int seencr = 1;
     67 	va_list ap;
     68 
     69 	if (tracefp == (void *)~0)
     70 		return;
     71 	if (tracefp == NULL) {
     72 		char *tf = getenv("CURSES_TRACE_FILE");
     73 		tracefp = fopen(tf ? tf : TFILE, "w");
     74 	}
     75 	if (tracefp == NULL) {
     76 		tracefp = (void *)~0;
     77 		return;
     78 	}
     79 	gettimeofday(&tv, NULL);
     80         if (seencr) {
     81                 gettimeofday(&tv, NULL);
     82                 (void) fprintf(tracefp, "%lu.%06lu: ", tv.tv_sec, tv.tv_usec);
     83         }
     84 	va_start(ap, fmt);
     85         (void) vfprintf(tracefp, fmt, ap);
     86         seencr = (strchr(fmt, '\n') != NULL);
     87 	va_end(ap);
     88 	(void) fflush(tracefp);
     89 }
     90 #else
     91 /* this kills the empty translation unit message from lint... */
     92 void
     93 __cursesi_make_lint_shut_up_if_debug_not_defined(void);
     94 
     95 void
     96 __cursesi_make_lint_shut_up_if_debug_not_defined(void)
     97 {
     98 	return;
     99 }
    100 #endif
    101