2 * blktrace output analysis: generate a timeline & gather statistics
4 * Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 FILE *rfp, *wfp, *cfp;
27 static FILE *bno_dump_open(struct d_info *dip, char rwc)
32 oname = malloc(strlen(bno_dump_name) + strlen(dip->dip_name) + 32);
33 sprintf(oname, "%s_%s_%c.dat", bno_dump_name, dip->dip_name, rwc);
34 if ((fp = my_fopen(oname, "w")) == NULL)
41 static inline void bno_dump_write(FILE *fp, struct io *iop)
43 fprintf(fp, "%15.9lf %lld %lld\n", BIT_TIME(iop->t.time),
44 (long long)BIT_START(iop), (long long)BIT_END(iop));
47 void *bno_dump_alloc(struct d_info *dip)
51 if (bno_dump_name == NULL) return NULL;
53 bdp = malloc(sizeof(*bdp));
54 bdp->rfp = bno_dump_open(dip, 'r');
55 bdp->wfp = bno_dump_open(dip, 'w');
56 bdp->cfp = bno_dump_open(dip, 'c');
61 void bno_dump_free(void *param)
66 void bno_dump_add(void *handle, struct io *iop)
68 struct bno_dump *bdp = handle;
71 FILE *fp = IOP_READ(iop) ? bdp->rfp : bdp->wfp;
74 bno_dump_write(fp, iop);
76 bno_dump_write(bdp->cfp, iop);