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80 lines
2.0 KiB
80 lines
2.0 KiB
/*
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* blktrace output analysis: generate a timeline & gather statistics
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*
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* Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "globals.h"
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struct bno_dump {
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FILE *rfp, *wfp, *cfp;
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};
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static FILE *bno_dump_open(struct d_info *dip, char rwc)
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{
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FILE *fp;
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char *oname;
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oname = malloc(strlen(bno_dump_name) + strlen(dip->dip_name) + 32);
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sprintf(oname, "%s_%s_%c.dat", bno_dump_name, dip->dip_name, rwc);
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if ((fp = my_fopen(oname, "w")) == NULL) {
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perror(oname);
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free(oname);
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} else
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add_file(fp, oname);
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return fp;
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}
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static inline void bno_dump_write(FILE *fp, struct io *iop)
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{
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fprintf(fp, "%15.9lf %lld %lld\n", BIT_TIME(iop->t.time),
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(long long)BIT_START(iop), (long long)BIT_END(iop));
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}
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void *bno_dump_alloc(struct d_info *dip)
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{
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struct bno_dump *bdp;
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if (bno_dump_name == NULL) return NULL;
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bdp = malloc(sizeof(*bdp));
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bdp->rfp = bno_dump_open(dip, 'r');
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bdp->wfp = bno_dump_open(dip, 'w');
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bdp->cfp = bno_dump_open(dip, 'c');
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return bdp;
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}
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void bno_dump_free(void *param)
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{
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free(param);
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}
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void bno_dump_add(void *handle, struct io *iop)
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{
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struct bno_dump *bdp = handle;
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if (bdp) {
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FILE *fp = IOP_READ(iop) ? bdp->rfp : bdp->wfp;
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if (fp)
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bno_dump_write(fp, iop);
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if (bdp->cfp)
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bno_dump_write(bdp->cfp, iop);
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}
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}
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