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 <stdio.h>
22#include <stdlib.h>
23#include <string.h>
24
25#include "globals.h"
26
27struct aqd_info {
28	FILE *fp;
29	int na;		/* # active */
30};
31
32void *aqd_alloc(char *str)
33{
34	char *oname;
35	struct aqd_info *ap;
36
37	if (aqd_name == NULL) return NULL;
38
39	ap = malloc(sizeof(*ap));
40	ap->na = 0;
41
42	oname = malloc(strlen(aqd_name) + strlen(str) + 32);
43	sprintf(oname, "%s_%s.dat", aqd_name, str);
44	if ((ap->fp = my_fopen(oname, "w")) == NULL) {
45		perror(oname);
46		return NULL;
47	}
48	add_file(ap->fp, oname);
49
50	return ap;
51
52}
53
54void aqd_free(void *info)
55{
56	free(info);
57}
58
59void aqd_issue(void *info, double ts)
60{
61	if (info) {
62		struct aqd_info *ap = info;
63
64		fprintf(ap->fp, "%lf %d\n%lf %d\n", ts, ap->na, ts, ap->na + 1);
65		ap->na += 1;
66	}
67}
68
69void aqd_complete(void *info, double ts)
70{
71	if (info) {
72		struct aqd_info *ap = info;
73
74		if (ap->na > 0) {
75			fprintf(ap->fp, "%lf %d\n%lf %d\n",
76					ts, ap->na, ts, ap->na - 1);
77			ap->na -= 1;
78		}
79	}
80}
81