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Annotation of src/usr.bin/make/trace.c, Revision 1.19

1.19    ! rillig      1: /*     $NetBSD: trace.c,v 1.17 2020/10/03 21:52:50 rillig Exp $        */
1.1       sommerfe    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:  *
                     19:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     20:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     21:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     22:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     23:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     24:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     25:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     26:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     27:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     28:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     29:  * POSSIBILITY OF SUCH DAMAGE.
                     30:  */
                     31:
                     32: /*-
                     33:  * trace.c --
                     34:  *     handle logging of trace events generated by various parts of make.
                     35:  *
                     36:  * Interface:
                     37:  *     Trace_Init              Initialize tracing (called once during
                     38:  *                             the lifetime of the process)
                     39:  *
                     40:  *     Trace_End               Finalize tracing (called before make exits)
                     41:  *
                     42:  *     Trace_Log               Log an event about a particular make job.
                     43:  */
                     44:
1.5       wiz        45: #include <sys/time.h>
                     46:
1.1       sommerfe   47: #include "make.h"
                     48: #include "job.h"
                     49: #include "trace.h"
                     50:
1.19    ! rillig     51: MAKE_RCSID("$NetBSD: trace.c,v 1.17 2020/10/03 21:52:50 rillig Exp $");
1.16      rillig     52:
1.1       sommerfe   53: static FILE *trfile;
                     54: static pid_t trpid;
1.13      rillig     55: const char *trwd;
1.1       sommerfe   56:
                     57: static const char *evname[] = {
                     58:        "BEG",
                     59:        "END",
                     60:        "ERR",
                     61:        "JOB",
                     62:        "DON",
                     63:        "INT",
                     64: };
                     65:
                     66: void
1.5       wiz        67: Trace_Init(const char *pathname)
1.1       sommerfe   68: {
                     69:        if (pathname != NULL) {
1.15      rillig     70:                char *dontFreeIt;
1.1       sommerfe   71:                trpid = getpid();
1.14      rillig     72:                trwd = Var_Value(".CURDIR", VAR_GLOBAL, &dontFreeIt);
1.1       sommerfe   73:
                     74:                trfile = fopen(pathname, "a");
                     75:        }
                     76: }
                     77:
                     78: void
1.5       wiz        79: Trace_Log(TrEvent event, Job *job)
1.1       sommerfe   80: {
1.4       reinoud    81:        struct timeval rightnow;
1.12      rillig     82:
1.1       sommerfe   83:        if (trfile == NULL)
                     84:                return;
                     85:
1.9       christos   86:        gettimeofday(&rightnow, NULL);
1.1       sommerfe   87:
1.11      christos   88:        fprintf(trfile, "%lld.%06ld %d %s %d %s",
                     89:            (long long)rightnow.tv_sec, (long)rightnow.tv_usec,
1.7       dsl        90:            jobTokensRunning,
1.1       sommerfe   91:            evname[event], trpid, trwd);
                     92:        if (job != NULL) {
1.9       christos   93:                fprintf(trfile, " %s %d %x %x", job->node->name,
                     94:                    job->pid, job->flags, job->node->type);
1.1       sommerfe   95:        }
1.9       christos   96:        fputc('\n', trfile);
                     97:        fflush(trfile);
1.1       sommerfe   98: }
                     99:
                    100: void
1.5       wiz       101: Trace_End(void)
1.1       sommerfe  102: {
                    103:        if (trfile != NULL)
1.9       christos  104:                fclose(trfile);
1.1       sommerfe  105: }