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trace.c revision 1.6 
      1 /*	$NetBSD: trace.c,v 1.6 2004/05/07 00:04:40 ross Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Bill Sommerfeld
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 
     40 #ifndef MAKE_NATIVE
     41 static char rcsid[] = "$NetBSD: trace.c,v 1.6 2004/05/07 00:04:40 ross Exp $";
     42 #else
     43 #include <sys/cdefs.h>
     44 #ifndef lint
     45 __RCSID("$NetBSD: trace.c,v 1.6 2004/05/07 00:04:40 ross Exp $");
     46 #endif /* not lint */
     47 #endif
     48 
     49 /*-
     50  * trace.c --
     51  *	handle logging of trace events generated by various parts of make.
     52  *
     53  * Interface:
     54  *	Trace_Init		Initialize tracing (called once during
     55  *				the lifetime of the process)
     56  *
     57  *	Trace_End		Finalize tracing (called before make exits)
     58  *
     59  *	Trace_Log		Log an event about a particular make job.
     60  */
     61 
     62 #include <sys/time.h>
     63 
     64 #include <stdio.h>
     65 #include <unistd.h>
     66 
     67 #include "make.h"
     68 #include "job.h"
     69 #include "trace.h"
     70 
     71 static FILE *trfile;
     72 static pid_t trpid;
     73 char *trwd;
     74 
     75 static const char *evname[] = {
     76 	"BEG",
     77 	"END",
     78 	"ERR",
     79 	"JOB",
     80 	"DON",
     81 	"INT",
     82 };
     83 
     84 void
     85 Trace_Init(const char *pathname)
     86 {
     87 	char *p1;
     88 	if (pathname != NULL) {
     89 		trpid = getpid();
     90 		trwd = Var_Value(".CURDIR", VAR_GLOBAL, &p1);
     91 
     92 		trfile = fopen(pathname, "a");
     93 	}
     94 }
     95 
     96 void
     97 Trace_Log(TrEvent event, Job *job)
     98 {
     99 	struct timeval rightnow;
    100 
    101 	if (trfile == NULL)
    102 		return;
    103 
    104 	gettimeofday(&rightnow, NULL);
    105 
    106 	fprintf(trfile, "%ld.%06d %d %d %s %d %s",
    107 	    rightnow.tv_sec, (int)rightnow.tv_usec,
    108 	    jobTokensRunning, jobTokensFree,
    109 	    evname[event], trpid, trwd);
    110 	if (job != NULL) {
    111 		fprintf(trfile, " %s %d %x %x", job->node->name,
    112 		    job->pid, job->flags, job->node->type);
    113 	}
    114 	fputc('\n', trfile);
    115 	fflush(trfile);
    116 }
    117 
    118 void
    119 Trace_End(void)
    120 {
    121 	if (trfile != NULL)
    122 		fclose(trfile);
    123 }
    124