1 /*
2 * blktrace output analysis: generate a timeline & gather statistics
3 *
4 * Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
5 *
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.
10 *
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.
15 *
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
19 *
20 */
21 #include "globals.h"
22
23 struct bno_dump {
24 FILE *rfp, *wfp, *cfp;
25 };
26
bno_dump_open(struct d_info * dip,char rwc)27 static FILE *bno_dump_open(struct d_info *dip, char rwc)
28 {
29 FILE *fp;
30 char *oname;
31
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) {
35 perror(oname);
36 free(oname);
37 } else
38 add_file(fp, oname);
39 return fp;
40 }
41
bno_dump_write(FILE * fp,struct io * iop)42 static inline void bno_dump_write(FILE *fp, struct io *iop)
43 {
44 fprintf(fp, "%15.9lf %lld %lld\n", BIT_TIME(iop->t.time),
45 (long long)BIT_START(iop), (long long)BIT_END(iop));
46 }
47
bno_dump_alloc(struct d_info * dip)48 void *bno_dump_alloc(struct d_info *dip)
49 {
50 struct bno_dump *bdp;
51
52 if (bno_dump_name == NULL) return NULL;
53
54 bdp = malloc(sizeof(*bdp));
55 bdp->rfp = bno_dump_open(dip, 'r');
56 bdp->wfp = bno_dump_open(dip, 'w');
57 bdp->cfp = bno_dump_open(dip, 'c');
58
59 return bdp;
60 }
61
bno_dump_free(void * param)62 void bno_dump_free(void *param)
63 {
64 free(param);
65 }
66
bno_dump_add(void * handle,struct io * iop)67 void bno_dump_add(void *handle, struct io *iop)
68 {
69 struct bno_dump *bdp = handle;
70
71 if (bdp) {
72 FILE *fp = IOP_READ(iop) ? bdp->rfp : bdp->wfp;
73
74 if (fp)
75 bno_dump_write(fp, iop);
76 if (bdp->cfp)
77 bno_dump_write(bdp->cfp, iop);
78 }
79 }
80