rf_dfsconvert.c

RAIDFrame是个非常好的磁盘阵列RAID仿真工具

/*
 * Copyright (c) 1995 Carnegie-Mellon University.
 * All rights reserved.
 *
 * Author: Jim Zelenka
 *
 * Permission to use, copy, modify and distribute this software and
 * its documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  [e-mail]
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie the
 * rights to redistribute these changes.
 */

/*
 * rf_dfsconvert.c
 * Jim Zelenka, CMU/SCS, 29 September 1995
 * read a dfstrace output file, output a raidframe
 * trace.dat style file
 */

/* $Locker:  $
 * $Log: rf_dfsconvert.c,v $
 * Revision 1.8  1996/06/14  14:21:43  jimz
 * give a compilation path when RF_DFSTRACE == 0
 * (mainly so "make depend" is happier)
 *
 * Revision 1.7  1996/06/05  18:06:02  jimz
 * Major code cleanup. The Great Renaming is now done.
 * Better modularity. Better typing. Fixed a bunch of
 * synchronization bugs. Made a lot of global stuff
 * per-desc or per-array. Removed dead code.
 *
 * Revision 1.6  1996/05/23  00:33:23  jimz
 * code cleanup: move all debug decls to rf_options.c, all extern
 * debug decls to rf_options.h, all debug vars preceded by rf_
 *
 * Revision 1.5  1995/12/01  16:00:56  root
 * added copyright info
 *
 */

#if RF_DFSTRACE > 0

#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <strings.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <ufs/inode.h>
#include <sys/mount.h>
#include <sys/param.h>
#include <sys/time.h>
#include <tracelib.h>

#include "rf_acctrace.h"

static char *progname;
static char *infile, *outfile;

static void usage()
{
	fprintf(stderr, "USAGE: %s dfstracefile outputfile\n", progname);
	exit(1);
}

main(argc, argv)
  int argc;
  char **argv;
{
	int outfd, rc, l, num_notes, num_done;
	RF_AccTraceEntry_t *acc;
	struct dfs_note *note;
	dfs_header_t *rec;
	FILE *inf;

	progname = argv[0];

	if (argc != 3)
		usage();
	infile = argv[1];
	outfile = argv[2];

	outfd = open(outfile, O_RDWR|O_CREAT, IREAD|IWRITE);
	if (outfd < 0) {
		perror(outfile);
		usage();
	}
	inf = Trace_Open(infile);
	if (inf == NULL) {
		perror(infile);
		usage();
	}

	num_notes = num_done = 0;
	l = sizeof(RF_AccTraceEntry_t);
	while (rec = Trace_GetRecord(inf)) {
		if (rec->opcode == DFS_NOTE) {
			note = (struct dfs_note *)rec;
			if (note->length == l) {
				num_done++;
				acc = (RF_AccTraceEntry_t *)note->note;
				rc = write(outfd, (char *)acc, l);
				if (rc != l) {
					if (rc < 0) {
						perror(outfile);
						exit(1);
					}
					else {
						printf(stderr, "ERROR: wrote %d/%d bytes to %s\n",
								rc, l, outfile);
						exit(1);
					}
				}
			}
			num_notes++;
		}
	}

	printf("Converted %d notes to %d trace entries\n", num_notes, num_done);

	close(outfd);

	exit(0);
}

#else /* RF_DFSTRACE > 0 */

#include <stdio.h>

main(argc, argv)
  int     argc;
  char  **argv;
{
  fprintf(stderr, "ERROR: %s only supported with DFSTRACE\n", argv[0]);
  fflush(stderr);
  exit(1);
}

#endif /* RF_DFSTRACE > 0 */